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U.S. Geological Survey Open-File Report 2006-1169

Submarine Hydrogeological Data from Cape Cod National Seashore

Figure 12a, plot of concentrations of nitrogen species.

Figure 12a: Profiles of concentrations of nitrogen species (ammonium [NH4+, measured as NH3], nitrate/nitrite [NO3-/NO2-], and total dissolved nitrogen [TDN]) in ground water for samples collected from piezometers (see Figure 3 for locations). Profiles are plotted in order from the northernmost (left) to southernmost (right). Click on image for larger version of the figure.