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- W2775389852 abstract "This work addresses the effect of biochar amendment to soil on contaminant sorption, bioavailability, and ecotoxicity. A distinction between positive primary amendment effects caused by reduced toxicity resulting from contaminant sorption, and negative secondary amendment effects of the biochars themselves was seen. Two biochars (one from high technology and one from low technology production processes) representing real world biochars were tested for the adsorption of pyrene, polychlorinated biphenyl (PCB) 52), and dichlorodiphenyldichloroethylene (p,p′-DDE). Sorption by both biochars was similar, both for compounds in single and mixed isotherms, in the presence and absence of soil. p,p′-DDE natively contaminated and spiked soils were amended with biochar (0, 1, 5, and 10%) and bioavailability, operationally defined bioaccessibility and ecotoxicity were assessed using polyethylene (PE), polymeric resin (XAD) and Folsomia candida, respectively. At the highest biochar dose (10%), bioavailability and bioaccessibility decreased by > 37% and > 41%, respectively, compared to unamended soils. Mortality of F. candida was not observed at any biochar dose, while reproductive effects were dose dependent. F. candida benefited from the reduction of p,p′-DDE bioavailability upon 1% and 5% biochar addition to contaminated soils while at 10% dose, these positive effects were nullified by biochar-induced toxicity. p,p′-DDE toxicity corrected for such secondary effects was predicted well by both PE uptake and XAD extraction." @default.
- W2775389852 created "2017-12-22" @default.
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- W2775389852 date "2018-05-01" @default.
- W2775389852 modified "2023-10-18" @default.
- W2775389852 title "Sorption, bioavailability and ecotoxic effects of hydrophobic organic compounds in biochar amended soils" @default.
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- W2775389852 doi "https://doi.org/10.1016/j.scitotenv.2017.12.098" @default.
- W2775389852 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29247907" @default.
- W2775389852 hasPublicationYear "2018" @default.
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