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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Environ Sci Technol. 2011 Jul 6;45(15):6356–6365. doi: 10.1021/es2012947

Figure 6.

Figure 6

Comparisons of the radical concentrations (spins/g of soil) and PCP concentrations (molecules/g of soil) for the three insoluble isolates of contaminated and non-contaminated soils. The corresponding PCP concentrations in ppm (mg/kg of soil) for the contaminated soils’ fractions are as follows: Whole Soil = 6054(±280) ppm; Acid Insoluble Precipitate = 7485(±248) ppm; Minerals/Clays/Humins = 6212(±150) ppm. The PCP analyses of for the three fractions of non-contaminated soil are below detection limit (BDL) of the method (8.9×1012 spins/g).