Cited by 78Per- and polyfluoroalkyl substances researchPesticide and Herbicide Environmental StudiesToxic Organic Pollutants Impact

Rates and equilibria of perfluorooctanoate (PFOA) sorption on soils from different regions of China

Miao, Yu, Guo, Xuetao, Dan Peng, Fan, Tingyu, Yang, Chen·2017·Ecotoxicology and Environmental Safety

Abstract

Understanding sorption of PFOA on soil particles is crucial to evaluate its environmental risk. Here, sorption of PFOA onto ten agricultural soils was examined. The influence of soil physico-chemical properties on PFOA sorption was investigated. The sorption rate of PFOA followed a pseudo-second-order kinetics. Isotherm data of PFOA sorption was fitted with both Freundlich and linear models and the latter fitted better. The sorption-desorption of PFOA onto ten soil samples depended on soil organic carbon content and composition of soil minerals. The sorption and desorption isotherms of PFOA on ten soils were linear, except for the sorption of PFOA onto a few soils, which was described by the Freundlich equation with the parameter N >1. The main sorption mechanism of PFOA was hydrophobic interaction between the perfluorinated carbon chain and the organic matter of soil, as evidenced by the correlation between the solid-liquid distribution coefficient and the fraction of soil organic carbon. The sorption of PFOA in soils was highly irreversible.

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Crossref · 10.1016/j.ecoenv.2017.01.022

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Authors
Miao, Y., Guo, X., Peng, D., Fan, T., & Yang, C.
Affiliations
  • Anhui University of Science and Technology (CN)
  • Shenzhen Institute of Information Technology (CN)
  • Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (CN)
Corresponding author
Guo, Xuetao
Venue
Ecotoxicology and Environmental Safety
Publisher
Elsevier BV
Published
2017-05
Volume
139
Pages
102-108
ISSN
0147-6513 (ISSN-L)
OpenAlex
W2594488474
Cited by
78
References
42
Citations by year
2026: 7 · 2025: 6 · 2024: 12 · 2023: 11 · 2022: 14 · 2021: 5 · 2020: 5 · 2019: 8 · 2018: 10
FWCI
3.70
Type
journal article
Language
en
Open access
closed
Locations
  • Ecotoxicology and Environmental Safety (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • China National Science Fund Program (41503095)
  • Natural Science Foundation of Universities of Anhui Province (KJ2015A016)
  • Shenzhen Science and Technology Planning Research (JCYJ20150417094158012)
  • China Postdoctoral Science Foundation (2016M601994)
  • PhD Fund of Anhui University of Science and Technology (ZY540)
  • Key Science Foundation for Young Teachers of Anhui University of Science and Technology (QN201507)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Pollution › Pesticide and Herbicide Environmental Studies
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
Keywords
perfluorooctanoic acid, pseudo-second-order kinetics, sorption isotherms, Freundlich isotherm, sorption-desorption, soil organic carbon, soil mineral composition, hydrophobic interactions, solid-liquid distribution coefficient, irreversible sorption, agricultural soils, perfluorinated compounds, China
MeSH terms
Adsorption, Agriculture, Caprylates, Carbon, China, Fluorocarbons, Kinetics, Soil, Soil Pollutants

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