6533b7d5fe1ef96bd1263e8e
RESEARCH PRODUCT
Identification of carbonaceous geosorbents for PAHs by organic petrography in river floodplain soils.
Christine AchtenThilo HofmannCarmen PiesYi YangBertrand Ligouissubject
Geologic SedimentsEnvironmental EngineeringHealth Toxicology and Mutagenesischemistry.chemical_elementMineralogycomplex mixturesPetrographySoilRiverspolycyclic compoundsEnvironmental ChemistrySoil PollutantsCoalPolycyclic Aromatic HydrocarbonsTotal organic carbonPersistent organic pollutantbusiness.industryPublic Health Environmental and Occupational HealthGeneral MedicineGeneral ChemistryCarbon blackPollutionSoil contaminationCarbonchemistryEnvironmental chemistrySoil waterEnvironmental sciencebusinessCarbonEnvironmental Monitoringdescription
Organic petrographic analysis was applied to provide direct information on carbonaceous geosorbents for PAHs in river floodplain soils. The anthropogenic OM group (primarily coal and coal-derived particles) displayed large volume amounts for all the soil samples. Distinct PAH concentrations with similar PAH distribution patterns were determined in grain size and density fractions for each sample. Two-ring PAHs had stronger correlation to organic carbon (OC) than black carbon (BC) contents, while heavier PAHs showed correlation to BC, rather than OC. In this study, we combined grain size and density separation, PAH determinations, TOC and BC measurements, and organic petrographic identification, and concluded that two-ring PAHs in soils were associated to coal particles. Other heavier PAHs could be more controlled by black carbon (BC), which were mostly coal-derived particles from former coal mining and coal industrial activity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-10-13 | Chemosphere |