Uptake and accumulation of per- and polyfluoroalkyl substances in plants. (December 2020)

• Record Type: Journal Article
• Authors: Wang, Wenfeng; Rhodes, Geoff; Ge, Jing; Yu, Xiangyang; Li, Hui
• Is Part Of: Chemosphere. Volume 261(2020)
• Publication Date: 2020-12
• Subjects: PFASs -- Plant uptake -- Contamination sources -- Bioaccumulation -- Influencing factors; AFFFs Aqueous firefighting foams -- BCF Bioconcentration factor -- EtFOSA N-Ethyl perfluorooctane sulfonamide -- EtFOSAA N-Ethyl perfluorooctane sulfonamidoacetic acid -- EtFOSE N-Ethyl perfluorooctane sulfonamido ethanol -- FOSA Perfluorooctane sulfonamide -- FOSAA Perfluorooctane sulfonamidoacetic acid -- FOSA Perfluoroalkyl sulfonamide -- FOSE Perfluoroalkyl sulfonamide ethanol -- FTCA Fluorotelomer saturated carboxylate -- FTUCA Fluorotelomer unsaturated carboxylate -- MeFOSA N-Methyl perfluorooctane sulfonamide -- MeFOSAA N-Methyl perfluorooctane sulfonamidoacetic acid -- MeFOSE N-Methyl perfluorooctane sulfonamide ethanol -- n:2 Cl-PFAES n:2 Chlorinated polyfluoroalkyl ether sulfonate -- n:2 diPAP n:2 Polyfluoroalkyl phosphate diester -- n:2 FTOH n:2 Fluorotelomer alcohol -- n:2 FTSA n:2 Fluorotelomer sulfonic acid -- PFECHS Perfluoro-4-ethylcyclohexane sulfonate -- PFASs Per- and polyfluoroalkyl substances -- PFBA Perfluorobutanoic acid -- PFBS Perfluorobutanesulfonic acid -- PFCAs Perfluoroalkyl carboxylic acids -- PFDA Perfluorodecanoic acid -- PFDoDA Perfluorododecanoic acid -- PFDS Perfluorodecanesulfonic acid -- PFHpA Perfluoroheptanoic acid -- PFHpS Perfluoroheptanesulfonic acid -- PFHxA Perfluorohexanoic acid -- PFHxDA Perfluorohexadecanoic acid -- PFHxS Perfluorohexanesulfonic acid -- PFNA Perfluorononanoic acid -- PFNS Perfluorononanesulfonic acid -- PFOA Perfluorooctanoic acid -- PFODA Perfluorooctadecanoic acid -- PFOS Perfluorooctanesulfonic acid -- PFPeA Perfluoropentanoic acid -- PFPeS Perfluoropentanesulfonic acid -- PFPrA Pentafluoropropionic acid -- PFSAs Perfluoroalkyl sulfonic acids -- PFTeDA Perfluorotetradecanoic acid -- PFTrDA Perfluorotridecanoic acid -- PFUnDA Perfluoroundecanoic acid -- RCF Root concentration factor -- TF Translocation factor -- TFA Trifluoroacetic acid -- WWTP Wastewater treatment plant -- ∑PFASs Total concentration of PFASs; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2020.127584
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Per- and polyfluoroalkyl substances (PFASs) are a class of persistent organic contaminants that are ubiquitous in the environment and have been found to be accumulated in agricultural products. Consumption of PFAS-contaminated agricultural products represents a feasible pathway for the trophic transfer of these toxic chemicals along food chains/webs, leading to risks associated with human and animal health. Recently, studies on plant uptake and accumulation of PFASs have rapidly increased; consequently, a review to summarize the current knowledge and highlight future research is needed. Analysis of the publications indicates that a large variety of plant species can take up PFASs from the environment. Vegetables and grains are the most commonly investigated crops, with perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as the most studied PFASs. The potential sources of PFASs for plant uptake include industrial emissions, irrigation with contaminated water, land application of biosolids, leachates from landfill sites, and pesticide application. Root uptake is the predominant pathway for the accumulation of PFASs in agricultural crops, and uptake by plant aboveground portions from the ambient atmosphere could play a minor role in the overall PFAS accumulation. PFAS uptake by plants is influenced by physicochemical properties of compounds (e.g., perfluorocarbon chain length, head group functionality, water solubility, and volatility), plant physiology (e.g., transpiration rate, lipid and protein content), and abiotic factors (e.g., soil organic matters, pH, salinity, and temperature). Based on literature analysis, the current knowledge gaps are identified, and future research prospects are suggested. Graphical abstract: Image 1 Highlights: Up-to-date knowledge on plant uptake and accumulation of PFASs is reviewed. Multiple sources of PFASs contribute to their accumulation in plants. Root uptake is the major pathway for accumulation of PFASs in agricultural crops. Uptake and accumulation of PFASs vary with plants, chemicals and abiotic factors. Further mechanic understanding of plant uptake of PFASs is warranted.