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Root Uptake and Trans location of Perfluorinated Alkyl Acids by Three Hydroponically Grown Crops
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2014 (English)In: Journal of Agricultural and Food Chemistry, ISSN 0021-8561, E-ISSN 1520-5118, Vol. 62, no 15, 3334-3342 p.Article in journal (Refereed) Published
Abstract [en]

Tomato, cabbage, and zucchini plants were grown hydroponically in a greenhouse. They were exposed to 14 perfluorinated alkyl acids (PFAAs) at four different concentrations via the nutrient solution. At maturity the plants were harvested, and the roots, stems, leaves, twigs (where applicable), and edible parts (tomatoes, cabbage head, zucchinis) were analyzed separately. Uptake and transfer factors were calculated for all plant parts to assess PFAA translocation and distribution within the plants. Root concentration factors were highest for long-chain PFAAs (>C11) in all three plant species, but these chemicals were not found in the edible parts. All other PFAAs were present in all above-ground plant parts, with transpiration stream concentration factors (sTSCFs) of 0.05-0.25. These PFAAs are taken up with the transpiration stream and accumulate primarily in the leaves. Although some systematic differences were observed, overall their uptake from nutrient solution to roots and their further distribution within the plants were similar between plant species and among PFAAs.

Place, publisher, year, edition, pages
2014. Vol. 62, no 15, 3334-3342 p.
Keyword [en]
PFAA, root uptake, translocation, crops, hydroponic, plants, PFOA, PFOS
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-104152DOI: 10.1021/jf500674jISI: 000334658300002OAI: oai:DiVA.org:su-104152DiVA: diva2:722679
Note

AuthorCount:3;

Available from: 2014-06-09 Created: 2014-06-03 Last updated: 2017-12-05Bibliographically approved

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