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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Quality Assurance Project Plan: PBT Monitoring: Mercury and PFAS Trends in Freshwater Fish, 2025-2029 |
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Quality Assurance Project Plan: PBT Monitoring: Mercury and PFAS Trends in Freshwater Fish, 2025-2029 (Number of pages: 92) (Publication Size: 7263KB)
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| Author(s) | Katelyn Foster and Callie Mathieu | ||||
| Description | Since 2005, the Washington State Department of Ecology’s (Ecology) Persistent, Bioaccumulative, and Toxic (PBT) Monitoring Program has monitored mercury trends in edible freshwater fish throughout the state. Between 2005 and 2024, the program collected smallmouth and largemouth bass from 30 water bodies to assess trends in mercury concentrations in bass over time. Ecology collected and tested 10 individual fish from each water body for mercury, and resampled sites every five years. As of 2024, each water body has been sampled four times, five years apart. This Quality Assurance Project Plan describes work to be carried out during the sampling years 2025 – 2029 of the long-term monitoring study. In 2025, Ecology will also test fish tissue for per- and polyfluoroalkyl substances (PFAS) and collect surface-water grab samples from each site for PFAS analysis. Additionally, five new water bodies are being added to the study to address information gaps on PFAS-specific areas of interest. Data from this long-term monitoring study will help the state characterize mercury and PFAS concentrations in its freshwaters, track potential environmental reductions, inform fish consumption advisories, and determine impaired waters through the state’s Water Quality Assessment. |
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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 | Per- and polyfluoroalkyl substances (PFAS), toxics monitoring, mercury, trends, freshwater fish | ||||
| WEB PAGE | Mercury in fish tissue | ||||
| WATERSHED | Water Resource Inventory Areas (WRIA 01,WRIA 03,WRIA 07,WRIA 08,WRIA 09,WRIA 11,WRIA 12,WRIA 13,WRIA 14,WRIA 15,WRIA 17,WRIA 20,WRIA 22,WRIA 24,WRIA 26,WRIA 28,WRIA 30,WRIA 35,WRIA 37,WRIA 41,WRIA 42,WRIA 43,WRIA 54,WRIA 57,WRIA 59,WRIA 60) |
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| DATA | Environmental Information Management (EIM) #HgFish25 |
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| RELATED PUBLICATIONS | Title:
Quality Assurance Project Plan: Measuring Mercury Trends in Freshwater Fish in Washington State Quality Assurance Project Plan: Measuring Mercury Trends in Freshwater Fish in Washington State |
Copyright © Washington State Department of Ecology. See https://ecology.wa.gov/About-us/Accountability-transparency/Our-website/Copyright-information.
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