Plant Uptake of PFAAs Under a Maximum Bioavailability Scenario

By Steven Lasee, Seenivasan Subbiah, William A. Thompson, Adcharee Karnjanapiboonwong, Juliette Jordan, Paxton Payton, and Todd A. Anderson
Environ. Toxicol. Chem.
August 20, 2019
DOI: 10.1002/etc.4571

While many studies have evaluated the fate of PFAAs in aquatic environments, few have observed their fate in terrestrial environments. It has been proposed that ingestion could be a major PFAA exposure route for humans. We determined PFAA uptake in radish, carrot, and alfalfa under a maximum bioavailability scenario. Bioconcentration factors (BCFs) were determined in the edible tissue of radish (PFBS = 72, PFHxS = 13, PFHpA = 65, PFOA = 18, PFOS = 2.9, and PFNA = 9.6), carrot (PFBS = 5.9, PFHxS = 1.1, PFHpA = 29, PFOA = 3.1, PFOS = 1, and PFNA = 1.4), and alfalfa (PFBS = 107, PFHxS = 12, PFHpA = 91, PFOA = 10, PFOS = 1.4, and PFNA = 1.7). Some of these PFAA BCFs are as much as two orders of magnitude higher than those measured previously in plants grown in biosolid-amended soils. This article is protected by copyright. All rights reserved.

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