Bulk Humin - CLU-IN

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[PAH] relative to OM changes Plant Carbon Non- Phragmites Vegetated Mixed Grass Bulk Sediment %TOC 21 + 1.9 27 + 0.4 14C PMCa 2.0 + 0.1 24 + 0.16 TPAH (μg/g soil) 161 + 11.8 69 + 2.9 TPAH (μg/g OC) 767 + 125 254 + 14.4 Bulk Humin %TOC 7.5 + 0.2 13 + 0.1 14C PMC 6.1 + 0.1 44 + 0.3 TPAH (μg/g soil) 14 + 1.9 11 + 1.2 TPAH (μg/g OC) 181 + 29.3 81 + 9.5 HF/HCl Humin %TOC 10 + 1.8 28 + 1.0 14C PMC 2.1 + 0.1 33 + 0.2 TPAH (μg/g soil) 6.0 + 1.0 2.8 + 0.3 TPAH (μg/g OC) 60 + 21 10 + 1.4 a Analyses by NOAA/WHOI AMS facility HUMIN Nonvegetated Phragmites colonization Carbonyl C Phragmites/Grass PAH Carboxyl Ester C Amide C Aromatic C Phenols C-O C-N Alkyl-O Aliphatic C 72 ppm 33 ppm
Other Indices for PAH Attenuation… PAH Concentrations (Alkylated and Non-alkylated PAHs) • PAH Distribution Histograms PAH Families (i.e., Phenanthrene) P0 Phenanthrene P1 Methyl Phenanthrene P2 Di-methyl Phenanthrene • Compound Specific PAH Ratios Ratios of particular alkylated or parent PAHs
Page 1 and 2: Tools to Assess Plant C and PAH C C
Page 3 and 4: Rhizosphere mechanisms that alter o
Page 5 and 6: Tools for OM Characterization • C
Page 7 and 8: Modern Plant Carbon and Petroleum C
Page 9 and 10: Fractionation Methods to Improve C
Page 11 and 12: Changes to OM Composition Character
Page 13: [PAH] relative to OM changes Plant
Page 17 and 18: PAH Attenuation Weathering Indices
Page 19 and 20: For Humic Fractionations… • Pla
Page 21 and 22: Density Fractionation of SOM Fracti
Page 23 and 24: OM Changes in Density Fractions Gas
Page 25 and 26: N0 N0 N0 BP BP BP ACL ACL ACL ACE A
Page 27 and 28: PAH Attenuation in Density Fraction
Page 29 and 30: For Density Fractions… • Plant-
Page 31: Future Directions… • Can 14C PM

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