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
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.