Per‐ and Polyfluoroalkyl Substances and Mercury in Arctic Alaska Coastal Fish of Subsistence Importance ...

AbstractPer‐ 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...

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Bibliographic Details
Main Authors: Fraley, Kevin M., Hamman, Carolyn R., Sutton, Trent M., Robards, Martin D., Jones, Tahzay, Whiting, Alex
Format: Article in Journal/Newspaper
Language:unknown
Published: Zenodo 2023
Subjects:
Arctic
Chukchi Sea
Varden
Chukchi
Humpback whitefish
Alaska
Online Access:https://dx.doi.org/10.5281/zenodo.8225108
https://zenodo.org/doi/10.5281/zenodo.8225108
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Summary:AbstractPer‐ 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 ...

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