Cited by 209Per- and polyfluoroalkyl substances researchFluoride Effects and RemovalEnvironmental Chemistry and Analysis

Per- and polyfluoroalkyl substances (PFASs) in the soil-plant system: Sorption, root uptake, and translocation

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Mei, Weiping, Sun, Hao, Song, Mengke, Jiang, Longfei, Li, Yongtao, Lu, Weisheng, Ying, Guang-Guo, Luo, Chunling +1 more·2021·Environment International

Abstract

Per- and polyfluoroalkyl substances (PFASs) are ubiquitous in the environment but pose potential risks to ecosystems and human health. The soil-plant system plays an important role in the bioaccumulation of PFASs. Because most PFASs in the natural environment are anionic and amphiphilic (both lipophilic and hydrophilic), their sorption and accumulation behaviors differ from those of neutral organic and common ionic compounds. In this review, we discuss processes affecting the availability of PFASs in soil after analyzing the potential mechanisms underlying the sorption and uptake of PFASs in the soil-plant system. We also summarize the current knowledge on root uptake and translocation of PFASs in plants. We found that the root concentration factor of PFASs for plants grown in soil was not significantly correlated with hydrophobicity, whereas the translocation factor was significantly and negatively correlated with PFAS hydrophobicity regardless of whether plants were grown hydroponically or in soil. Further research on the cationic, neutral, and zwitterionic forms of diverse PFASs is urgently needed to comprehensively understand the environmental fates of PFASs in the soil-plant system. Additional research directions are suggested, including the development of more accurate models and techniques to evaluate the bioavailability of PFASs, the effects of root exudates and rhizosphere microbiota on the bioavailability and plant uptake of PFASs, and the roles of different plant organelles, lipids, and proteins in the accumulation of PFASs by plants.

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Crossref · 10.1016/j.envint.2021.106642

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  • Short-chain PFASs are more water-soluble, less strongly retained, and thus more mobile and more likely to be taken up and translocated by plants.

    “In contrast, short-chain PFASs are more water-soluble, less strongly retained, and thus more mobile and more likely to be taken up and translocated by plants [162-164].”

    From Industrial Applications, Environmental Fate, Human Exposure, and Health Effects of PFAS (2025) · cites this paper as [163]

    Section 2.1 (page not supplied) reports that soil sorption increases with PFAS chain length, and Section 4.2 reports greater plant translocation for shorter chains. The paper does not directly establish the claimed water-solubility difference, and Section 3.2.2 does not support greater root uptake as a general rule: longer chains had greater root concentration factors in hydroponic studies, while soil-grown plants showed no significant relationship with chain length. (LLM, conf=0.89)

    Experimental — accuracy not yet measured
  • Soil organic carbon content slows PFAS movement by increasing sorption, especially for long-chain PFASs, which bind more strongly to soil and are less mobile.

    “Soil organic carbon (SOC) content slows PFAS movement by increasing sorption, especially for long-chain PFASs, which bind more strongly to soil and are less mobile.”
  • Long-chain PFASs tend to accumulate in roots, while short-chain PFASs are more readily moved to shoots.

    “Plant root uptake and translocation depend on both PFAS properties and plant physiology: long-chain PFASs tend to accumulate in roots, while short-chain PFASs are more readily moved to shoots [163-165].”

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Authors
Mei, W., Sun, H., Song, M., Jiang, L., Li, Y., Lu, W., Ying, G.-G., Luo, C., & Zhang, G.
Affiliations
  • South China Agricultural University (CN)
  • Chinese Academy of Sciences (CN)
  • South China Normal University (CN)
Corresponding author
  • Lu, Weisheng
  • Luo, Chunling
Venue
Environment International
Publisher
Elsevier BV
Published
2021-11
Volume
156
Pages
106642
ISSN
0160-4120 (ISSN-L)
OpenAlex
W3160076852
Cited by
209
References
99
Citations by year
2026: 54 · 2025: 47 · 2024: 51 · 2023: 29 · 2022: 22 · 2021: 6
FWCI
2.00
Type
journal article
Language
en
Open access
Locations
  • Environment International (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Guangdong Science and Technology Department (2019B121205006, 202020080831100003, 2017BT01Z134)
  • State Key Laboratory of Organic Geochemistry (SKLOG2020–4, SKLOG2020)
  • Guangdong Provincial Applied Science and Technology Research and Development Program (SKLOG2020-4, 2017BT01Z134, 2019B121205006)
  • Guangdong Provincial Pearl River Talents Program (2017BT01Z134)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Water Science and Technology › Fluoride Effects and Removal
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
Keywords
per- and polyfluoroalkyl substances, PFAS bioaccumulation, soil-plant system, soil sorption, root uptake, translocation factor, root concentration factor, hydrophobicity, bioavailability, root exudates, rhizosphere microbiome, plant uptake mechanisms, hydroponics
MeSH terms
Fluorocarbons, Humans, Plants, Soil, Soil Pollutants, Ecosystem

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