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- Title
Per‐ and Polyfluoroalkyl Substances and Mercury in Arctic Alaska Coastal Fish of Subsistence Importance.
- Authors
Fraley, Kevin M.; Hamman, Carolyn R.; Sutton, Trent M.; Robards, Martin D.; Jones, Tahzay; Whiting, Alex
- Abstract
Per‐ and polyfluoroalkyl substances (PFAS) and mercury (Hg) are harmful compounds that are widely present in the environment, partly due to spills and atmospheric pollution. The presence of PFAS and Hg in the tissues of animals that are harvested by rural and Indigenous Alaskans is of great concern, yet fish in Arctic Alaska have not previously been assessed for concentrations of PFAS. Fish species of subsistence and recreational importance were collected from nearshore Beaufort and Chukchi Sea, Alaska habitats and assessed for PFAS and total mercury concentrations [THg]. We found multiple PFAS compounds present at low levels (<3 μg/kg) in the muscle tissue of inconnu, broad whitefish, Dolly Varden char, Arctic flounder, saffron cod, humpback whitefish, and least cisco. In addition, [THg] levels in these fish were well below levels triggering local fish consumption guidelines (<170 μg/kg). These initial results indicate no evidence of the Alaska Arctic nearshore fish species examined as an avenue of PFAS or Hg exposure to people who harvest them. However, sources and trends of these contaminants in the Arctic require further investigation. Environ Toxicol Chem 2023;42:2329–2335. © 2023 SETAC
- Subjects
ALASKA; HURMUZGAN (Iran); ARCTIC regions; FLUOROALKYL compounds; MERCURY; AIR pollution; POLLUTANTS
- Publication
Environmental Toxicology & Chemistry, 2023, Vol 42, Issue 11, p2329
- ISSN
0730-7268
- Publication type
Article
- DOI
10.1002/etc.5717