| Title | Uptake and translocation of perfluoroalkyl acids (PFAA) in red chicory (Cichorium intybus L.) under various treatments with pre-contaminated soil and irrigation water |
| Abstract | Perfluoroalkyl acids (PFAAs), particularly short-chained ones, have high potential for crop uptake, posing a threat to human health in contaminated areas. There is a scarcity of studies using contaminated water as the medium for PFAAs delivery to crops, and a lack of data on the partitioning of PFAA mixtures in growing media. In this context, a controlled experimental study was carried out in a greenhouse to investigate the uptake of a PFAA mixture into red chicory, a typical crop from a major PFAA contamination hot-spot in northern Italy, under treatments with environmentally relevant concentrations in spiked irrigation water and soil, separately and simultaneously. To our knowledge, this is the first study involving multiple exposure media and laboratory adsorption/desorption batch tests as a way of assessing the decrease in the bioavailability of PFAAs from soil. Exposure concentrations for each of the 9 utilized PFAAs were 0, 1, 10 and 80 mu g/L in irrigation water and 0, 100 and 200 ng/g(dw) in soil, combined into 12 treatments. The highest bioaccumulation was measured for PFBA in roots (maximum of 43 mu g/g(dw)), followed by leaves and heads of the chicory plants in all treatments, with the concentrations exponentially decreasing with an increasing PFAA chain length in all plant compartments. The use of irrigation water as the delivery medium increased the transport of PFAAs to the aerial chicory parts, long-chain substances in particular. Additionally, the distribution of PFAAs in the soil was assessed by depth and compared with laboratory measured soil-water equilibrium partition coefficients, revealing only partial dependency of PFAAs bioavailability on the adsorption in soil. (C) 2019 Elsevier B.V. All rights reserved. |
| Source | Science of the total environment 708 |
| Keywords | Perfluoroalkyl substances (PFASs)Sorption coefficientEnvironmental fateBioaccumulation |
| Journal | Science of the total environment |
| Editor | Elsevier, Lausanne ;, Paesi Bassi |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.scitotenv.2019.134766 |
| Authors | Gredelj, Andrea; Nicoletto, Carlo; Valsecchi, Sara; Ferrario, Claudia; Polesello, Stefano; Lava, Roberto; Zanon, Francesca; Barausse, Alberto; Palmeri, Luca; Guidolin, Laura; Bonato, Marco |
| Text | 417589 2020 10.1016/j.scitotenv.2019.134766 ISI Web of Science WOS 000506214900096 Perfluoroalkyl substances PFASs Sorption coefficient Environmental fate Bioaccumulation Uptake and translocation of perfluoroalkyl acids PFAA in red chicory Cichorium intybus L. under various treatments with pre contaminated soil and irrigation water Gredelj, Andrea; Nicoletto, Carlo; Valsecchi, Sara; Ferrario, Claudia; Polesello, Stefano; Lava, Roberto; Zanon, Francesca; Barausse, Alberto; Palmeri, Luca; Guidolin, Laura; Bonato, Marco Univ Padua; Univ Padua; CNR; ARPAV Reg Environm Agcy Veneto; Univ Padua Perfluoroalkyl acids PFAAs , particularly short chained ones, have high potential for crop uptake, posing a threat to human health in contaminated areas. There is a scarcity of studies using contaminated water as the medium for PFAAs delivery to crops, and a lack of data on the partitioning of PFAA mixtures in growing media. In this context, a controlled experimental study was carried out in a greenhouse to investigate the uptake of a PFAA mixture into red chicory, a typical crop from a major PFAA contamination hot spot in northern Italy, under treatments with environmentally relevant concentrations in spiked irrigation water and soil, separately and simultaneously. To our knowledge, this is the first study involving multiple exposure media and laboratory adsorption/desorption batch tests as a way of assessing the decrease in the bioavailability of PFAAs from soil. Exposure concentrations for each of the 9 utilized PFAAs were 0, 1, 10 and 80 mu g/L in irrigation water and 0, 100 and 200 ng/g dw in soil, combined into 12 treatments. The highest bioaccumulation was measured for PFBA in roots maximum of 43 mu g/g dw , followed by leaves and heads of the chicory plants in all treatments, with the concentrations exponentially decreasing with an increasing PFAA chain length in all plant compartments. The use of irrigation water as the delivery medium increased the transport of PFAAs to the aerial chicory parts, long chain substances in particular. Additionally, the distribution of PFAAs in the soil was assessed by depth and compared with laboratory measured soil water equilibrium partition coefficients, revealing only partial dependency of PFAAs bioavailability on the adsorption in soil. C 2019 Elsevier B.V. All rights reserved. 708 Published version articolo 2020_Gredelj_Uptake of PFAAs in radicchio.pdf Articolo in rivista Elsevier 0048 9697 Science of the total environment Science of the total environment Sci. total environ. FERRARIO CLAUDIA stefano.polesello POLESELLO STEFANO saramaria.valsecchi VALSECCHI SARA MARIA |
