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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Per- and Polyfluoroalkyl Substances in Freshwater Fish of Ten Lakes, 2023 Results |
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Per- and Polyfluoroalkyl Substances in Freshwater Fish of Ten Lakes, 2023 Results (Number of pages: 83) (Publication Size: 2753KB)
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| Author(s) | Mathieu, C. and K. Foster | ||||
| Description | In the fall of 2023, the Washington State Department of Ecology (Ecology) conducted a study to fill data gaps on per- and polyfluoroalkyl substances (PFAS) in various freshwater fish species across a range of water bodies. Ecology collected 324 fish from ten lakes in Washington: American, Goodwin, Horsethief, Leland, Loomis, McIntosh, Nahwatzel, Sammamish, Spanaway, and Stevens. Fillet tissues were analyzed for PFAS as 75 composites and 13 individual samples. Three surface water samples were also collected from each lake for PFAS analysis. PFAS were detected in 83 out of the 88 fish tissue samples. Total (T-) PFAS concentrations were highest in American Lake fish, followed by Spanaway Lake and Lake Stevens, all of which had fish tissue median and means above 10 ng/g across all species collected. Lake Goodwin had T-PFAS concentrations above 10 ng/g in several bass samples. All other lakes sampled contained fish tissue T-PFAS concentrations below 5 ng/g. PFAS levels in American, Spanaway, Stevens, and some Goodwin fish were high enough to be harmful to wildlife consuming the fish. The other lakes sampled were below levels of expected ecological impacts. PFAS concentrations in fish and surface water were not at levels that would indicate direct harm to the fish, according to state thresholds. However, several fish samples from American Lake and one from Spanaway Lake were above new federal recommendations for protecting aquatic life. The data was submitted to Washington Department of Health to evaluate potential human health concerns. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | EAP Publications Coordinator at 564-669-3028 or EAPpubs@ecy.wa.gov | ||||
| Keywords | PFAS, American, Per- and polyfluoroalkyl substances (PFAS), Stevens, toxics monitoring, surface water, lakes, PBTs, perfluorooctane sulfonic acid (PFOS), freshwater fish contaminants, PFOS, PBT Monitoring, Loomis, Goodwin, Horsethief, Leland, McIntosh, Nahwatzel, Sammamish, Lake Sammamish, Spanaway | ||||
| WATERSHED | Water Resource Inventory Areas (WRIA 07,WRIA 08,WRIA 12,WRIA 13,WRIA 17,WRIA 22,WRIA 24,WRIA 30) |
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| DATA | Environmental Information Management (EIM) #PBTMON006 |
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| RELATED PUBLICATIONS | Title:
Quality Assurance Project Plan: Per- and Polyfluoroalkyl Substances in Freshwater Fish of Ten Lakes, 2023 |
Copyright © Washington State Department of Ecology. See https://ecology.wa.gov/About-us/Accountability-transparency/Our-website/Copyright-information.
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