Uptake and translocation of perfluoroalkyl acids (PFAAs) in hydroponically grown red chicory (Cichorium intybus L.): Growth and developmental toxicity, comparison with growth in soil and bioavailability implications

The Science of the Total Environment
Andrea GredeljMarco Bonato

Abstract

Short-chain perfluoroalkyl acids (PFAAs) have shown a high potential for plant (crop) uptake, making them possibly significant contributors to the total dietary exposure to PFAAs. The plant uptake of PFAAs is a complex process that needs better characterization, as it does not only depend on perfluoroalkyl chain length, but also on their polar terminal group, on the plant species and the exposure media. Here, a plant uptake study with nine perfluoroalkyl acids (PFAAs) was carried out under the hydroponic (soilless) exposure conditions. Red chicory was grown in a nutrient solution, spiked with PFAAs mixture at three different concentrations (i.e. 62.5, 125 and 250 μg/L), in order to extend the range of levels tested and reported in the literature so far. Bioaccumulation metrics and transpiration stream concentration factors (TSCFs) were employed for the plant uptake characterization and consequent comparison with the results of soil uptake experiment we previously performed with the same crop. The results showed that calculated root concentration factors (RCFs) increase with PFAA chain length, while the opposite chain length dependence was present for shoots. Plants from two treatments with the highest PFAAs concentrations manif...Continue Reading

Citations

Oct 21, 2020·The Science of the Total Environment·Lukas LesmeisterMarco Scheurer
Dec 12, 2020·The Science of the Total Environment·Matthew W Sima, Peter R Jaffé
Apr 17, 2021·Analytical Methods : Advancing Methods and Applications·Claudia FerrarioStefano Polesello
Jul 15, 2021·Environmental Science. Processes & Impacts·Sebastian FelizeterMichael S McLachlan
Aug 17, 2021·The Science of the Total Environment·Muhammad Arslan, Mohamed Gamal El-Din

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