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Contaminants of Emerging Concern in Fish from Western U.S. and Alaskan National Parks — Spatial Distribution and Health Thresholds Public Deposited

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https://ir.library.oregonstate.edu/concern/articles/gb19f7626

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article is copyrighted by the American Water Resources Association and published by John Wiley & Sons Ltd. The article is in the public domain and it can be found at:  http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291752-1688.

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  • Remote national parks of the western U.S. and Alaska are not immune to contaminants of emerging concern. Semivolatile organic compounds (SOCs) such as pesticides and PCBs can selectively deposit from the atmosphere at higher rates in cold, high-elevation and high-latitude sites, potentially increasing risk to these ecosystems. In the environment, SOCs magnify up food chains and are known to increase health risks such as cancer and reproductive impairment. One hundred twenty-eight fish in 8 national parks in Alaska and the western U.S. were analyzed for contaminant concentrations, assessed by region, and compared to human and wildlife health thresholds. SOC concentrations from an additional 133 fish from a previous study were also included, for a total of 31 water bodies sampled. PCBs, endosulfan sulfate, and p,p′-DDE were among the most frequently detected contaminants. Concentrations of historic-use pesticides dieldrin, p,p′-DDE, and/or chlordanes in fish exceeded USEPA guidelines for human subsistence fish consumers and wildlife (kingfisher) health thresholds at 13 of 14 parks. Average concentrations in fish ranged from 0.6-280 ng/g lipid (0.02-7.3 μg/g ww). Contaminant loading was highest in fish from Alaskan and Sierra Nevada parks. Historic compounds were highest in Alaskan parks, while current-use pesticides were higher in the Rockies and Sierra Nevada. This study provides a rigorous analysis of CECs in fish from national parks and identifies regions at potential risk.
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  • Pritz, C. M. F., Schrlau, J. E., Simonich, S. L. M., & Blett, T. F. (2014). Contaminants of Emerging Concern in Fish from Western US and Alaskan National Parks—Spatial Distribution and Health Thresholds. Journal of the American Water Resources Association, 50(2), 309-323. doi:10.1111/jawr.12168
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  • 50
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  • 2
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  • This work was funded by the U.S. Department of the Interior, with in-kind contributions from Oregon State University.
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  • description.provenance : Made available in DSpace on 2014-06-26T17:35:26Z (GMT). No. of bitstreams: 2 SchrlauJillEnvironMolecularToxicologyContaminantsEmergingConcern.pdf: 1789838 bytes, checksum: 1102d6a71b782969e5a79d9b7fd2795a (MD5) SchrlauJillEnvironMolecularToxicologyContaminantsEmergingConcern_SupportingInformation.pdf: 1061176 bytes, checksum: 50140be81971588b70c6a466d038e08c (MD5) Previous issue date: 2014-04
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-06-26T17:35:26Z (GMT) No. of bitstreams: 2 SchrlauJillEnvironMolecularToxicologyContaminantsEmergingConcern.pdf: 1789838 bytes, checksum: 1102d6a71b782969e5a79d9b7fd2795a (MD5) SchrlauJillEnvironMolecularToxicologyContaminantsEmergingConcern_SupportingInformation.pdf: 1061176 bytes, checksum: 50140be81971588b70c6a466d038e08c (MD5)
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-06-26T17:35:09Z No. of bitstreams: 2 SchrlauJillEnvironMolecularToxicologyContaminantsEmergingConcern.pdf: 1789838 bytes, checksum: 1102d6a71b782969e5a79d9b7fd2795a (MD5) SchrlauJillEnvironMolecularToxicologyContaminantsEmergingConcern_SupportingInformation.pdf: 1061176 bytes, checksum: 50140be81971588b70c6a466d038e08c (MD5)

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