PMID- 34527758 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2328-8930 (Print) IS - 2328-8930 (Electronic) VI - 8 IP - 6 DP - 2021 Jun 8 TI - Tissue-specific distribution of legacy and novel per- and polyfluoroalkyl substances in juvenile seabirds. PG - 457-462 LID - 10.1021/acs.estlett.1c00222 [doi] AB - Of the thousands of per- and polyfluoroalkyl substances (PFAS) in the environment, few have been investigated in detail. In this study, we analyzed 36 legacy and emerging PFAS in multiple seabird tissues collected from individuals from Massachusetts Bay, Narragansett Bay and the Cape Fear River Estuary. PFOS was the dominant compound across multiple tissues, while long-chain perfluorinated carboxylic acids (PFCAs) dominated in brain (mean = 44% of total concentrations). Emerging perfluoroalkyl ether acids (PFEAs)-Nafion byproduct-2 and PFO5DoDA - were detected in greater than 90% of tissues in birds obtained from a nesting region downstream from a major fluorochemical production site. Compound ratios, relative body burden calculations, and electrostatic surface potential calculations were used to describe partitioning behavior of PFEAs in different tissues. Novel PFEAs preferentially partition into blood compared to liver, and were documented in brain for the first time. PFO5DoDA showed a reduced preference for brain compared to PFCAs and Nafion BP2. These results suggest future monitoring efforts and toxicological studies should focus on novel PFAS and long-chain PFCAs in multiple tissues beyond liver and blood, while exploring the unique binding mechanisms driving uptake of multi-ether PFEAs. FAU - Robuck, Anna R AU - Robuck AR AD - University of Rhode Island Graduate School of Oceanography, Narragansett, RI 02882. FAU - McCord, James P AU - McCord JP AD - US Environmental Protection Agency, Center for Environmental Measurement and Modeling, Durham, NC 27709. FAU - Strynar, Mark J AU - Strynar MJ AD - US Environmental Protection Agency, Center for Environmental Measurement and Modeling, Durham, NC 27709. FAU - Cantwell, Mark G AU - Cantwell MG AD - US Environmental Protection Agency, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882. FAU - Wiley, David N AU - Wiley DN AD - National Oceanic and Atmospheric Administration Stellwagen Bank National Marine Sanctuary, Scituate, MA 02066. FAU - Lohmann, Rainer AU - Lohmann R AD - University of Rhode Island Graduate School of Oceanography, Narragansett, RI 02882. LA - eng GR - P42 ES027706/ES/NIEHS NIH HHS/United States PT - Journal Article DEP - 20210517 PL - United States TA - Environ Sci Technol Lett JT - Environmental science & technology letters JID - 101628367 PMC - PMC8437152 MID - NIHMS1721078 OTO - NOTNLM OT - PFAS OT - PFOS OT - bioaccumulation OT - partitioning OT - seabirds EDAT- 2021/09/17 06:00 MHDA- 2021/09/17 06:01 PMCR- 2022/06/08 CRDT- 2021/09/16 07:18 PHST- 2021/09/16 07:18 [entrez] PHST- 2021/09/17 06:00 [pubmed] PHST- 2021/09/17 06:01 [medline] PHST- 2022/06/08 00:00 [pmc-release] AID - 10.1021/acs.estlett.1c00222 [doi] PST - ppublish SO - Environ Sci Technol Lett. 2021 Jun 8;8(6):457-462. doi: 10.1021/acs.estlett.1c00222. Epub 2021 May 17.