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- W3046860732 endingPage "141251" @default.
- W3046860732 startingPage "141251" @default.
- W3046860732 abstract "Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are contaminants of great concern due to their wide-spread occurrence and persistence in the environments (i.e., in water, soil and sediment) and potential toxicology even at very low concentration. The main focus of this review is on the PFASs in soil and sediments. More specifically, this review systematically examines the occurrence and toxicological effects with associated risks, fate (i.e., PFASs adsorption by soil and sediment, transportation and transformation, and bioaccumulation), and remediation practices of PFASs in soil and sediment. Various models and equations such as fugacity-based multimedia fate and hydrodynamic models are used to study the fate, transport, and transformation of PFASs. Among different remediation practices, sorption is the dominant process for the removal of PFASs from soil and sediments. Results also indicate that PFASs adsorption onto activated carbon decrease with the increase of carbon chain length in the PFASs. The longer-chain PFASs have larger partition coefficient values than shorter-chained PFASs. Sorption of PFASs to soil and sediments are mainly governed by different electrostatic interactions, hydrogen bonds formation, hydrophobic interactions, organic content in soil and sediments, and ligand exchange. Other technology such as thermal treatment might be potential in the removal of PAFSs, but need further study to elucidate a conclusion. Finally, the associated challenges and future outlook have been included." @default.
- W3046860732 created "2020-08-07" @default.
- W3046860732 creator A5007196438 @default.
- W3046860732 creator A5037798523 @default.
- W3046860732 creator A5058200470 @default.
- W3046860732 creator A5073479590 @default.
- W3046860732 creator A5088270405 @default.
- W3046860732 date "2020-12-01" @default.
- W3046860732 modified "2023-10-14" @default.
- W3046860732 title "Per- and polyfluoroalkyl substances in soil and sediments: Occurrence, fate, remediation and future outlook" @default.
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