Parent and alkylated polycyclic aromatic hydrocarbons (PAHs) in ash, stream sediment, steelhead, crayfish, and marine mussels after the 2020 CZU Wildfire

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• What does this data set describe?
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What does this data set describe?

1. How might this data set be cited?
   Takesue, Renee K., and Campbell-Swarzenski, Pamela L., 20251211, Parent and alkylated polycyclic aromatic hydrocarbons (PAHs) in ash, stream sediment, steelhead, crayfish, and marine mussels after the 2020 CZU Wildfire: data release DOI:10.5066/P13QWYFV, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

   Online Links:

   • https://doi.org/10.5066/P13QWYFV

   This is part of the following larger work.
   Takesue, Renee K., Hallas, Leticia P., Campbell-Swarzenski, Pamela L., Prouty, Nancy G., and East, Amy E., 2025, Compositions of ash, soil, sediment, water, and biota after the 2020 CZU Lightning Complex Wildfire, Santa Cruz Mountains, CA: data release DOI:10.5066/P13QWYFV, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

   Online Links:

   • https://doi.org/10.5066/P13QWYFV

   Other_Citation_Details:

   Suggested Citation: Takesue, R.K., Hallas, L.P., Campbell-Swarzenski, P.L., Prouty, N.G., and East, A.E., 2025, Compositions of ash, soil, sediment, water, and biota after the 2020 CZU Lightning Complex Wildfire, Santa Cruz Mountains, CA: U.S. Geological Survey data release, https://doi.org/10.5066/P13QWYFV

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -122.3957
   East_Bounding_Coordinate: -122.0342
   North_Bounding_Coordinate: 37.3259
   South_Bounding_Coordinate: 36.5757
   

3. What does it look like?

   pic_Beach_black%20carbon.JPG (JPEG)

   Black carbon on a Santa Cruz beach after the 2020 CZU Wildfire. Photo credit: Ferdinand Oberle

4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 12-Sep-2020

   Ending_Date: 13-Mar-2025

   Currentness_Reference:

   Airborne ashes were collected up to one month post-fire. In situ ashes were collected at 6-month intervals for three years post-fire. Stream sediments were collected after first flush, high flow, and low flow conditions for three years post-fire. Marine mussels were collected in February after high flows and in June or July after low flows for three years. Steelhead and crayfish were collected in May, June, and July for two years, and PAHs were measured in Year 1 biota.

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: comma-delimited text
   

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (165)
   2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0001. Longitudes are given to the nearest 0.0001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.0000.
      The flattening of the ellipsoid used is 1/298.2572.
      
7. How does the data set describe geographic features?

   CZUallPAHs_ash_sediment_biota_data.csv

   Table of data. PAH concentrations are formatted in scientific notation because data are reported with three significant figures for concentrations ranging several orders of magnitude. Abbreviations: OK, value meets all quality control criteria; D, dilution; J, concentration less than lowest calibration standard; K, peak detected but did not meet quantification criteria and the reported value is the maximum possible concentration; B, analyte was measured in the lab blank and in the sample; U, not detected at reporting limit; NQ, not quantified. Flag codes separated by a comma indicate more than one condition applies. -9999, not determined or not detected at reporting limit for U-flagged values. (Source: Producer defined)

   Lab_ID

   Unique sample identifier for the CZU Wildfire Project (CZU) with sample type abbreviations: SED, stream sediment; HVAC, intake vent filter on the roof of PCMSC; CONTROL, unburnt forest; ASH, wildfire ash; mussel, whole body composite of Mytilus californianus from Waddell Beach; fish, whole body composite of steelhead (Oncorhynchus mykiss) from lower Scott Creek; crayfish, soft tissue composite of Pacifastacus leniusculus 88-118 millimeters in length from upper reaches of streams; AXYS_blank, lab blank specific to a sample work group. (Source: Producer defined) Unique alphanumeric field sample identifier

   SiteID_Loc_Period

   Unique sample identifier assigned during field collection based on the Site (SiteID), location within the site (Loc) if relevant, and period of collection (Period). Abbreviations: VIC, San Vicente Creek; LIT, Little Creek; BIG, Big Creek; SCO, Scott Creek; WAD, Waddell Creek; GAZ, Gazos Creek; BUT, Butano Creek; PESC, Pescadero Creek; GREG, San Gregorio Creek; CONTROL, unburnt forest site; CLE, Clear Creek basin; JAM, Jamison Creek basin; LOCK, Lockheed gate; EAG, Eagle Mountain trail head; Y1, Year 1 from August 2020 to July 2021; Y2, Year 2 from August 2021 to July 2022; Y3, Year 3 from August 2022 to August 2023; PF, pre-flush; FF, first flush; HF, high flow; LF, low flow; AC, roof-top HVAC unit and number; WADsmall, mussels 40-50 millimeters in length; WADmedium, mussels 50-60 millimeters in length; WADlarge, mussels 60-70 millimeters in length; SCOsmall, fish 43-63 millimeters fork length; SCOmedium, fish 95-120 millimeters fork length; SCOlarge, fish 150-162 millimeters fork length. (Source: Producer defined) Unique alphanumeric field sample identifier

   Date_collected

   Date the sample was collected, in mm/dd/yy. -9999=not applicable (Source: Producer defined)

   Range of values
   Minimum:	09/12/20
   Maximum:	08/16/23
   Units:	mm/dd/yy
   Resolution:	1

   Latitude_WGS84

   Latitude where the sample was collected relative to geodetic datum WGS84. -9999=not applicable (Source: Producer defined)

   Range of values
   Minimum:	36.5757
   Maximum:	37.3259
   Units:	decimal degrees
   Resolution:	0.0001

   Longitude_WGS84

   Longitude where the sample was collected relative to geodetic datum WGS84. (Source: Producer defined)

   Range of values
   Minimum:	-122.3957
   Maximum:	-122.0342
   Units:	decimal degrees
   Resolution:	0.0001

   AXYS_WorkGroup

   Identifier assigned to a batch of samples by SGS AXYS Analytical Services Ltd. (Source: SGS AXYS Analytical Services Ltd.) Unique alphanumeric batch identifier

   AXYS_SampleID

   Unique identifier assigned to each sample by SGS AXYS Analytical Services Ltd. (Source: SGS AXYS Analytical Services Ltd.) Unique alphanumeric sample identifier

   Sample_weight

   Amount of material extracted for PAH analysis. Sediment and ash weights are dry weights. Fish, crayfish, and mussel weights are wet weights. (Source: Producer defined)

   Range of values
   Minimum:	3.13
   Maximum:	15.00
   Units:	grams
   Resolution:	0.01

   PercentMoisture

   Moisture content of material extracted for PAH analysis, in percent. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	0.0
   Maximum:	85.5
   Units:	percent
   Resolution:	0.1

   PercentLipid

   Lipid content of material extracted for PAH analysis, in percent. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	0.48
   Maximum:	5.00
   Units:	percent
   Resolution:	0.01

   PercentTOC

   Total organic carbon (TOC) content of bulk ash and sediment, in percent. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	0.29
   Maximum:	12.14
   Units:	percent
   Resolution:	0.01

   Naphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.11E-1
   Maximum:	2.48E+3
   Units:	nanograms per gram (ng/g)

   Naphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Naphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.30E-3
   Maximum:	3.63E+0
   Units:	nanograms per gram (ng/g)

   Acenaphthylene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.50E-2
   Maximum:	2.41E+2
   Units:	nanograms per gram (ng/g)

   Acenaphthylene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Acenaphthylene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	5.10E-3
   Maximum:	7.93E-1
   Units:	nanograms per gram (ng/g)

   Acenaphthene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.30E-2
   Maximum:	6.59E+1
   Units:	nanograms per gram (ng/g)

   Acenaphthene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Acenaphthene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	8.90E-3
   Maximum:	1.45E+0
   Units:	nanograms per gram (ng/g)

   2-Methylfluorene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.50E-2
   Maximum:	5.76E+1
   Units:	nanograms per gram (ng/g)

   2-Methylfluorene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2-Methylfluorene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.70E-3
   Maximum:	1.39E+0
   Units:	nanograms per gram (ng/g)

   C2-Phenanthrenes/Anthracenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.40E-2
   Maximum:	9.81E+2
   Units:	nanograms per gram (ng/g)

   C2-Phenanthrenes/Anthracenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Phenanthrenes/Anthracenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.50E-3
   Maximum:	9.55E-1
   Units:	nanograms per gram (ng/g)

   Fluorene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.30E-2
   Maximum:	1.78E+2
   Units:	nanograms per gram (ng/g)

   Fluorene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Fluorene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.20E-3
   Maximum:	6.99E-1
   Units:	nanograms per gram (ng/g)

   Phenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. Flag codes separated by a comma (,) indicate multiple conditions apply. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.40E-2
   Maximum:	1.45E+3
   Units:	nanograms per gram (ng/g)

   Phenanthrene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Phenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.40E-3
   Maximum:	2.42E+0
   Units:	nanograms per gram (ng/g)

   Anthracene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.20E-2
   Maximum:	1.88E+2
   Units:	nanograms per gram (ng/g)

   Anthracene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Anthracene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.30E-3
   Maximum:	5.46E-1
   Units:	nanograms per gram (ng/g)

   C1-Phenanthrenes/Anthracenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.00E-2
   Maximum:	1.13E+3
   Units:	nanograms per gram (ng/g)

   C1-Phenanthrenes/Anthracenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard`
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Phenanthrenes/Anthracenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.40E-3
   Maximum:	8.38E-1
   Units:	nanograms per gram (ng/g)

   Fluoranthene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. (Source: Producer defined)

   Range of values
   Minimum:	2.40E-2
   Maximum:	6.55E+2
   Units:	nanograms per gram (ng/g)

   Fluoranthene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Fluoranthene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.10E-3
   Maximum:	6.88E-1
   Units:	nanograms per gram (ng/g)

   Pyrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.50E-2
   Maximum:	5.07E+2
   Units:	nanograms per gram (ng/g)

   Pyrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Pyrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.00E-3
   Maximum:	6.80E-1
   Units:	nanograms per gram (ng/g)

   Benz[a]anthracene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	5.00E-3
   Maximum:	1.17E+2
   Units:	nanograms per gram (ng/g)

   Benz[a]anthracene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Benz[a]anthracene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	3.60E-3
   Maximum:	8.23E-1
   Units:	nanograms per gram (ng/g)

   Chrysene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.00E-2
   Maximum:	4.51E+2
   Units:	nanograms per gram (ng/g)

   Chrysene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Chrysene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.10E-3
   Maximum:	8.76E-1
   Units:	nanograms per gram (ng/g)

   Benzo[b]fluoranthene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. Flag codes separated by a comma (,) indicate multiple conditions apply. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.20E-2
   Maximum:	2.33E+2
   Units:	nanograms per gram (ng/g)

   Benzo[b]fluoranthene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Benzo[b]fluoranthene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.10E-3
   Maximum:	1.31E+0
   Units:	nanograms per gram (ng/g)

   Benzo[j,k]fluoranthenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.20E-2
   Maximum:	2.01E+2
   Units:	nanograms per gram (ng/g)

   Benzo[j,k]fluoranthenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Benzo[j,k]fluoranthenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	8.30E-3
   Maximum:	1.47E+0
   Units:	nanograms per gram (ng/g)

   Benzo[e]pyrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.80E-2
   Maximum:	2.26E+2
   Units:	nanograms per gram (ng/g)

   Benzo[e]pyrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Benzo[e]pyrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.09E-2
   Maximum:	1.98E+0
   Units:	nanograms per gram (ng/g)

   Benzo[a]pyrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.90E-2
   Maximum:	1.10E+2
   Units:	nanograms per gram (ng/g)

   Benzo[a]pyrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Benzo[a]pyrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.17E-2
   Maximum:	2.04E+0
   Units:	nanograms per gram (ng/g)

   Perylene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.60E-2
   Maximum:	5.45E+1
   Units:	nanograms per gram (ng/g)

   Perylene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Perylene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.17E-2
   Maximum:	2.05E+0
   Units:	nanograms per gram (ng/g)

   Dibenz[a,h]anthracene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.00E-2
   Maximum:	2.55E+1
   Units:	nanograms per gram (ng/g)

   Dibenz[a,h]anthracene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Dibenz[a,h]anthracene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.40E-3
   Maximum:	2.18E+0
   Units:	nanograms per gram (ng/g)

   Indeno[1,2,3-cd]pyrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.30E-2
   Maximum:	1.37E+2
   Units:	nanograms per gram (ng/g)

   Indeno[1,2,3-cd]pyrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Indeno[1,2,3-cd]pyrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.07E-2
   Maximum:	2.21E+0
   Units:	nanograms per gram (ng/g)

   Benzo[ghi]perylene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.20E-2
   Maximum:	2.30E+2
   Units:	nanograms per gram (ng/g)

   Benzo[ghi]perylene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Benzo[ghi]perylene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.03E-2
   Maximum:	1.94E+0
   Units:	nanograms per gram (ng/g)

   2-Methylnaphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	6.10E-2
   Maximum:	8.83E+2
   Units:	nanograms per gram (ng/g)

   2-Methylnaphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2-Methylnaphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.20E-3
   Maximum:	1.22E+0
   Units:	nanograms per gram (ng/g)

   1-Methylnaphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.60E-2
   Maximum:	6.22E+2
   Units:	nanograms per gram (ng/g)

   1-Methylnaphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1-Methylnaphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.70E-3
   Maximum:	1.28E+0
   Units:	nanograms per gram (ng/g)

   C1-Naphthalenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	7.20E-2
   Maximum:	1.51E+3
   Units:	nanograms per gram (ng/g)

   C1-Naphthalenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Naphthalenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.20E-3
   Maximum:	1.22E+0
   Units:	nanograms per gram (ng/g)

   Biphenyl_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	5.00E-2
   Maximum:	1.30E+3
   Units:	nanograms per gram (ng/g)

   Biphenyl_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Biphenyl_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.50E-3
   Maximum:	1.79E+0
   Units:	nanograms per gram (ng/g)

   C1-Biphenyls_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.70E-2
   Maximum:	1.02E+2
   Units:	nanograms per gram (ng/g)

   C1-Biphenyls_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Biphenyls_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.40E-3
   Maximum:	7.92E-1
   Units:	nanograms per gram (ng/g)

   C2-Biphenyls_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	5.30E-2
   Maximum:	1.03E+2
   Units:	nanograms per gram (ng/g)

   C2-Biphenyls_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Biphenyls_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.90E-3
   Maximum:	2.70E+0
   Units:	nanograms per gram (ng/g)

   C2-Naphthalenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.67E-1
   Maximum:	1.59E+3
   Units:	nanograms per gram (ng/g)

   C2-Naphthalenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Naphthalenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.71E-2
   Maximum:	2.32E+0
   Units:	nanograms per gram (ng/g)

   1,2-Dimethylnaphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.10E-2
   Maximum:	1.56E+2
   Units:	nanograms per gram (ng/g)

   1,2-Dimethylnaphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1,2-Dimethylnaphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.71E-2
   Maximum:	1.92E+0
   Units:	nanograms per gram (ng/g)

   2,6-Dimethylnaphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.60E-2
   Maximum:	2.68E+2
   Units:	nanograms per gram (ng/g)

   2,6-Dimethylnaphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2,6-Dimethylnaphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.42E-2
   Maximum:	1.40E+0
   Units:	nanograms per gram (ng/g)

   C3-Naphthalenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	5.90E-2
   Maximum:	1.01E+3
   Units:	nanograms per gram (ng/g)

   C3-Naphthalenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C3-Naphthalenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	8.10E-3
   Maximum:	2.34E+0
   Units:	nanograms per gram (ng/g)

   2,3,6-Trimethylnaphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.70E-2
   Maximum:	1.08E+2
   Units:	nanograms per gram (ng/g)

   2,3,6-Trimethylnaphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2,3,6-Trimethylnaphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.90E-3
   Maximum:	2.31E+0
   Units:	nanograms per gram (ng/g)

   2,3,5-Trimethylnaphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.30E-2
   Maximum:	3.11E+2
   Units:	nanograms per gram (ng/g)

   2,3,5-Trimethylnaphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2,3,5-Trimethylnaphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	8.20E-3
   Maximum:	4.43E+0
   Units:	nanograms per gram (ng/g)

   C4-Naphthalenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.40E-2
   Maximum:	3.13E+2
   Units:	nanograms per gram (ng/g)

   C4-Naphthalenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C4-Naphthalenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.90E-3
   Maximum:	1.71E+0
   Units:	nanograms per gram (ng/g)

   C1-Acenaphthenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.00E-2
   Maximum:	6.91E+1
   Units:	nanograms per gram (ng/g)

   C1-Acenaphthenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Acenaphthenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.20E-3
   Maximum:	1.17E+0
   Units:	nanograms per gram (ng/g)

   C1-Fluorenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	7.70E-2
   Maximum:	2.35E+1
   Units:	nanograms per gram (ng/g)

   C1-Fluorenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Fluorenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.70E-3
   Maximum:	1.39E+0
   Units:	nanograms per gram (ng/g)

   1,7-Dimethylfluorene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.60E-2
   Maximum:	1.71E+1
   Units:	nanograms per gram (ng/g)

   1,7-Dimethylfluorene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1,7-Dimethylfluorene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.29E-2
   Maximum:	1.27E+0
   Units:	nanograms per gram (ng/g)

   C2-Fluorenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.20E-2
   Maximum:	1.77E+2
   Units:	nanograms per gram (ng/g)

   C2-Fluorenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Fluorenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.29E-2
   Maximum:	1.33E+0
   Units:	nanograms per gram (ng/g)

   C3-Fluorenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.80E-2
   Maximum:	1.35E+2
   Units:	nanograms per gram (ng/g)

   C3-Fluorenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C3-Fluorenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.11E-2
   Maximum:	1.64E+0
   Units:	nanograms per gram (ng/g)

   Dibenzothiophene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	9.00E-3
   Maximum:	2.91E+1
   Units:	nanograms per gram (ng/g)

   Dibenzothiophene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Dibenzothiophene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.00E-3
   Maximum:	6.16E-1
   Units:	nanograms per gram (ng/g)

   C1-Dibenzothiophenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.60E-2
   Maximum:	2.28E+1
   Units:	nanograms per gram (ng/g)

   C1-Dibenzothiophenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Dibenzothiophenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	8.40E-3
   Maximum:	6.16E-1
   Units:	nanograms per gram (ng/g)

   2/3-Methyldibenzothiophenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.60E-2
   Maximum:	7.71E+0
   Units:	nanograms per gram (ng/g)

   2/3-Methyldibenzothiophenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2/3-Methyldibenzothiophenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	8.40E-3
   Maximum:	9.82E-1
   Units:	nanograms per gram (ng/g)

   C2-Dibenzothiophenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.70E-2
   Maximum:	6.36E+1
   Units:	nanograms per gram (ng/g)

   C2-Dibenzothiophenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Dibenzothiophenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.90E-3
   Maximum:	1.17E+0
   Units:	nanograms per gram (ng/g)

   2,4-Dimethyldibenzothiophene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.50E-2
   Maximum:	4.38E+0
   Units:	nanograms per gram (ng/g)

   2,4-Dimethyldibenzothiophene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2,4-Dimethyldibenzothiophene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.50E-3
   Maximum:	4.38E+0
   Units:	nanograms per gram (ng/g)

   4,6-Dimethyldibenzothiophene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	6.00E-3
   Maximum:	6.86E+0
   Units:	nanograms per gram (ng/g)

   4,6-Dimethyldibenzothiophene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   4,6-Dimethyldibenzothiophene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	5.80E-3
   Maximum:	1.00E+0
   Units:	nanograms per gram (ng/g)

   C3-Dibenzothiophenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.80E-2
   Maximum:	3.63E+1
   Units:	nanograms per gram (ng/g)

   C3-Dibenzothiophenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C3-Dibenzothiophenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.40E-3
   Maximum:	1.23E+0
   Units:	nanograms per gram (ng/g)

   C4-Dibenzothiophenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	6.10E-2
   Maximum:	1.41E+1
   Units:	nanograms per gram (ng/g)

   C4-Dibenzothiophenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C4-Dibenzothiophenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.40E-3
   Maximum:	5.91E-1
   Units:	nanograms per gram (ng/g)

   3-Methylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.00E-2
   Maximum:	1.52E+2
   Units:	nanograms per gram (ng/g)

   3-Methylphenanthrene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   3-Methylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.50E-3
   Maximum:	8.59E-1
   Units:	nanograms per gram (ng/g)

   2-Methylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.40E-2
   Maximum:	3.34E+2
   Units:	nanograms per gram (ng/g)

   2-Methylphenanthrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2-Methylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.70E-3
   Maximum:	9.19E-1
   Units:	nanograms per gram (ng/g)

   2-Methylanthracene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.70E-2
   Maximum:	7.11E+1
   Units:	nanograms per gram (ng/g)

   2-Methylanthracene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2-Methylanthracene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.40E-3
   Maximum:	8.26E-1
   Units:	nanograms per gram (ng/g)

   9/4-Methylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.30E-2
   Maximum:	1.47E+2
   Units:	nanograms per gram (ng/g)

   9/4-Methylphenanthrene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   9/4-Methylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.50E-3
   Maximum:	8.59E-1
   Units:	nanograms per gram (ng/g)

   1-Methylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.10E-2
   Maximum:	4.30E+2
   Units:	nanograms per gram (ng/g)

   1-Methylphenanthrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1-Methylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	9.40E-3
   Maximum:	8.38E-1
   Units:	nanograms per gram (ng/g)

   3,6-Dimethylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.80E-2
   Maximum:	5.62E+1
   Units:	nanograms per gram (ng/g)

   3,6-Dimethylphenanthrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   3,6-Dimethylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.60E-3
   Maximum:	9.78E-1
   Units:	nanograms per gram (ng/g)

   2,6-Dimethylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.30E-2
   Maximum:	4.34E+1
   Units:	nanograms per gram (ng/g)

   2,6-Dimethylphenanthrene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   2,6-Dimethylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.50E-3
   Maximum:	9.55E-1
   Units:	nanograms per gram (ng/g)

   1,7-Dimethylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.50E-2
   Maximum:	6.17E+2
   Units:	nanograms per gram (ng/g)

   1,7-Dimethylphenanthrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1,7-Dimethylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.40E-3
   Maximum:	9.32E-1
   Units:	nanograms per gram (ng/g)

   1,8-Dimethylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	6.00E-3
   Maximum:	2.67E+1
   Units:	nanograms per gram (ng/g)

   1,8-Dimethylphenanthrene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1,8-Dimethylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.50E-3
   Maximum:	9.55E-1
   Units:	nanograms per gram (ng/g)

   C3-Phenanthrenes/Anthracenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.80E-2
   Maximum:	5.37E+2
   Units:	nanograms per gram (ng/g)

   C3-Phenanthrenes/Anthracenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C3-Phenanthrenes/Anthracenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.70E-3
   Maximum:	1.97E+0
   Units:	nanograms per gram (ng/g)

   1,2,6-Trimethylphenanthrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.30E-2
   Maximum:	4.96E+1
   Units:	nanograms per gram (ng/g)

   1,2,6-Trimethylphenanthrene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1,2,6-Trimethylphenanthrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.70E-3
   Maximum:	2.15E+0
   Units:	nanograms per gram (ng/g)

   Retene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.20E-2
   Maximum:	2.01E+3
   Units:	nanograms per gram (ng/g)

   Retene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   Retene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.68E-2
   Maximum:	1.07E+1
   Units:	nanograms per gram (ng/g)

   C4-Phenanthrenes/Anthracenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.63E-1
   Maximum:	2.44E+3
   Units:	nanograms per gram (ng/g)

   C4-Phenanthrenes/Anthracenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   D	Sample was diluted
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C4-Phenanthrenes/Anthracenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.68E-2
   Maximum:	1.07E+1
   Units:	nanograms per gram (ng/g)

   C1-Fluoranthenes/Pyrenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	7.00E-3
   Maximum:	3.17E+2
   Units:	nanograms per gram (ng/g)

   C1-Fluoranthenes/Pyrenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Fluoranthenes/Pyrenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.30E-3
   Maximum:	1.02E+0
   Units:	nanograms per gram (ng/g)

   3-Methylfluoranthene/Benzo[a]fluorene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.20E-2
   Maximum:	1.37E+2
   Units:	nanograms per gram (ng/g)

   3-Methylfluoranthene/Benzo[a]fluorene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   3-Methylfluoranthene/Benzo[a]fluorene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.30E-3
   Maximum:	1.02E+0
   Units:	nanograms per gram (ng/g)

   C2-Fluoranthenes/Pyrenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	7.00E-3
   Maximum:	1.99E+2
   Units:	nanograms per gram (ng/g)

   C2-Fluoranthenes/Pyrenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Fluoranthenes/Pyrenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	5.80E-3
   Maximum:	7.27E-1
   Units:	nanograms per gram (ng/g)

   C3-Fluoranthenes/Pyrenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.30E-2
   Maximum:	5.95E+1
   Units:	nanograms per gram (ng/g)

   C3-Fluoranthenes/Pyrenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C3-Fluoranthenes/Pyrenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	5.90E-3
   Maximum:	5.59E-1
   Units:	nanograms per gram (ng/g)

   C4-Fluoranthenes/Pyrenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.80E-2
   Maximum:	2.46E+1
   Units:	nanograms per gram (ng/g)

   C4-Fluoranthenes/Pyrenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C4-Fluoranthenes/Pyrenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	6.70E-3
   Maximum:	9.61E-1
   Units:	nanograms per gram (ng/g)

   C1-Benzo[a]anthracenes/Chrysenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	8.00E-3
   Maximum:	4.08E+2
   Units:	nanograms per gram (ng/g)

   C1-Benzo[a]anthracenes/Chrysenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Benzo[a]anthracenes/Chrysenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.20E-3
   Maximum:	6.32E-1
   Units:	nanograms per gram (ng/g)

   5/6-Methylchrysene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.00E-2
   Maximum:	2.55E+1
   Units:	nanograms per gram (ng/g)

   5/6-Methylchrysene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   5/6-Methylchrysene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.10E-3
   Maximum:	6.24E-1
   Units:	nanograms per gram (ng/g)

   1-Methylchrysene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.40E-2
   Maximum:	1.31E+2
   Units:	nanograms per gram (ng/g)

   1-Methylchrysene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1-Methylchrysene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.20E-3
   Maximum:	6.40E-1
   Units:	nanograms per gram (ng/g)

   C2-Benzo[a]anthracenes/Chrysenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.30E-2
   Maximum:	2.10E+2
   Units:	nanograms per gram (ng/g)

   C2-Benzo[a]anthracenes/Chrysenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Benzo[a]anthracenes/Chrysenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.90E-3
   Maximum:	1.42E+0
   Units:	nanograms per gram (ng/g)

   5,9-Dimethylchrysene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.10E-2
   Maximum:	4.71E+1
   Units:	nanograms per gram (ng/g)

   5,9-Dimethylchrysene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   5,9-Dimethylchrysene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.90E-3
   Maximum:	1.42E+0
   Units:	nanograms per gram (ng/g)

   C3-Benzo[a]anthracenes/Chrysenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.25E-1
   Maximum:	4.07E+1
   Units:	nanograms per gram (ng/g)

   C3-Benzo[a]anthracenes/Chrysenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C3-Benzo[a]anthracenes/Chrysenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.30E-3
   Maximum:	9.31E-1
   Units:	nanograms per gram (ng/g)

   C4-Benzo[a]anthracenes/Chrysenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	2.50E-2
   Maximum:	2.21E+1
   Units:	nanograms per gram (ng/g)

   C4-Benzo[a]anthracenes/Chrysenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C4-Benzo[a]anthracenes/Chrysenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	7.30E-3
   Maximum:	1.25E+0
   Units:	nanograms per gram (ng/g)

   C1-Benzofluoranthenes/Benzopyrenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	4.10E-2
   Maximum:	2.44E+2
   Units:	nanograms per gram (ng/g)

   C1-Benzofluoranthenes/Benzopyrenes_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C1-Benzofluoranthenes/Benzopyrenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.68E-2
   Maximum:	1.37E+0
   Units:	nanograms per gram (ng/g)

   7-Methylbenzo[a]pyrene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.60E-2
   Maximum:	2.20E+1
   Units:	nanograms per gram (ng/g)

   7-Methylbenzo[a]pyrene_FLAG

   Quality assurance (QA) code. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   7-Methylbenzo[a]pyrene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.68E-2
   Maximum:	1.37E+0
   Units:	nanograms per gram (ng/g)

   C2-Benzofluoranthenes/Benzopyrenes_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	3.80E-2
   Maximum:	8.16E+1
   Units:	nanograms per gram (ng/g)

   C2-Benzofluoranthenes/Benzopyrenes_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   C2-Benzofluoranthenes/Benzopyrenes_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	1.62E-2
   Maximum:	4.43E+0
   Units:	nanograms per gram (ng/g)

   1,4,6,7-Tetramethylnaphthalene_CONC

   PAH concentration in dry weight sediment, dry weight ash, or wet weight biota. -9999=not detected when U-flagged or not determined (Source: Producer defined)

   Range of values
   Minimum:	1.80E-2
   Maximum:	3.43E+1
   Units:	nanograms per gram (ng/g)

   1,4,6,7-Tetramethylnaphthalene_FLAG

   Quality assurance (QA) code. Flag codes separated by a comma (,) indicate multiple conditions apply. (Source: Producer defined)

   Value	Definition
   OK	No QC flags
   B	Analyte found in the work group lab blank associated with the sample
   J	Concentration was less than the lowest calibration standard
   K	Analyte peak was detected but did not meet quantification criteria. The reported value is the maximum possible concentration
   U	Analyte was not detected at the reporting limit (RL)
   NQ	Analysis failed to meet QA criteria

   1,4,6,7-Tetramethylnaphthalene_RL

   Sample-specific reporting limit (RL) in dry weight sediment, dry weight ash, or wet weight biota. -9999=not determined (Source: Producer defined)

   Range of values
   Minimum:	4.90E-3
   Maximum:	1.71E+0
   Units:	nanograms per gram (ng/g)

   Entity_and_Attribute_Overview: The first line of the csv file is a header line.
   Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
   

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Renee K. Takesue
   • Pamela L. Campbell-Swarzenski
2. Who also contributed to the data set?
   SGS AXYS Analytical Services Ltd., Sidney, BC, measured PAHs, percent moisture, and percent lipids. Angela Tan analyzed total organic carbon content at the USGS Pacific Coastal and Marine Science Center Sediment and Carbon Laboratory.
3. To whom should users address questions about the data?
   U.S. Geological Survey, Pacific Coastal and Marine Science Center

   Attn: PCMSC Science Data Coordinator

   2885 Mission Street

   Santa Cruz, CA
   

   831-427-4747 (voice)

   pcmsc_data@usgs.gov

Why was the data set created?

How was the data set created?

1. From what previous works were the data drawn?
2. How were the data generated, processed, and modified?

   Date: 16-Aug-2023 (process 1 of 3)

   SAMPLE COLLECTION. Stream sediment was collected by hand from recently deposited fine-grained material on stream banks with solvent-cleaned stainless steel sampling tools and stored in pre-combusted amber glass jars. Ash, soil, and mixed samples were collected from undisturbed forest sites by hand with solvent-cleaned stainless steel sampling tools, stored in combusted 500 milliliter glass jars, and sieved to remove particles greater than 2 mm in diameter.

   Date: 13-Mar-2025 (process 2 of 3)

   TOTAL ORGANIC CARBON CONTENT. Carbon analysis was performed at the PCMSC Carbon Laboratory by combustion, acidification, and coulometric detection using a UIC CM5015 Coulometer. Ash and sediment were dried overnight at 80 degrees Celsius and pulverized by hand in a mortar and pestle. 20 milligrams of material for total carbon (TC) were combusted at 950 degrees Celsius (UIC CM 5230 furnace) and quantified with a coulometric titration. 20 milligrams of material for total inorganic carbon (TIC) were digested with perchloric acid (UIC CM 5130 acid digester) and quantified with a coulometric titration. Total organic carbon (TOC) was calculated as the difference between TC and TIC. Average values of process duplicates are reported. Person who carried out this activity:
   

   Angela Tan

   U.S. Geological Survey, Pacific Coastal and Marine Science Center

   Physical Scientist

   2885 Mission Street

   Santa Cruz, CA
   

   831-460-7409 (voice)

   atan@usgs.gov

   Date: 05-Sep-2024 (process 3 of 3)

   PARENT AND ALKYLATED POLYCYCLIC AROMATIC HYDROCARBON (PAH) CONCENTRATIONS, PERCENT MOISTURE, PERCENT LIPID: 76 parent and alkylated polycyclic aromatic hydrocarbons (PAHs) were analyzed at SGS AXYS Analytical Services Ltd. (AXYS), a ultra-trace laboratory, by their extended PAH method. Samples were spiked with surrogate standards, Soxhlet-extracted with dichloromethane, and cleaned up with column chromatography and activated copper. PAHs were quantified by isotope dilution low resolution gas chromatography mass spectrometry in multiple ion detection mode to acquire data for target analytes and paired surrogates to minimize false positive identifications. Sample-specific concentration Reporting Limits (RL) for every analyte are reported for every quantified analyte. Due to the wide range of values in environmental samples, PAH concentrations are reported with three significant figures (XXX, XX.X, X.XX, 0.XXX, etc.) rather than a fixed measurement resolution. Percent moisture and percent lipids are ancillary parameters included with PAH analyses. Person who carried out this activity:
   

   Sean Campbell

   SGS AXYS Analytical Services Ltd.

   Project Manager

   2045 Mills Road West

   Sidney, BC
   

   250-655-5834 (voice)

   250-655-5811 (FAX)

   sean.campbell@sgs.com

3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?
   POLYCYCLIC AROMATIC HYDROCARBONS (PAHs): Quality Assurance (QA) measures for PAHs included external calibration curves, internal standards, lab blanks, and spiked matrix samples. All raw data are shown without censorship with corresponding QA flags and definitions. K-flagged values represent maximum possible concentrations. Percent recovery acceptance criteria in spiked matrix samples for the 16 priority PAHs were 70-130 percent except for Fluorene, which was 60-140 percent, and 50-150 percent for other PAHs.
2. How accurate are the geographic locations?
   The stated accuracy from the manufacturer for the Garmin handheld GPS used to record sediment collection locations is 3 feet.
3. How accurate are the heights or depths?
   
4. Where are the gaps in the data? What is missing?
   Data set is complete
5. How consistent are the relationships among the observations, including topology?
   No formal logical consistency tests were conducted.

How can someone get a copy of the data set?

1. Who distributes the data set? (Distributor 1 of 1)
   
   U.S. Geological Survey - CMGDS

   2885 Mission Street

   Santa Cruz, CA
   

   1-831-427-4747 (voice)

   pcmsc_data@usgs.gov
2. What's the catalog number I need to order this data set? These data are available in csv format (CZUallPAHs_ash_sediment_biota_data.csv), accompanied by CSDGM FGDC compliant metadata and a map on the landing page showing sample locations.
3. What legal disclaimers am I supposed to read?
   Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
4. How can I download or order the data?
   • Availability in digital form:

     Data format:	File contains the csv table and the associated metadata. in format comma-delimited text Size: 0.2688
     Network links:	https://doi.org/10.5066/P13QWYFV

   • Cost to order the data: None.

5. What hardware or software do I need in order to use the data set?
   These data can be viewed with any text reader.

Who wrote the metadata?

Dates:

Last modified: 11-Dec-2025

Metadata author:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Attn: PCMSC Science Data Coordinator

2885 Mission Street

Santa Cruz, CA

831-427-4747 (voice)

pcmsc_data@usgs.gov

Metadata standard:

Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)