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Title

Measuring Mercury Trends in Freshwater Fish in Washington State, 2009 Sampling Results

 
Publication number Date Published
10-03-058October 2010
VIEW NOW: Measuring Mercury Trends in Freshwater Fish in Washington State, 2009 Sampling Results (Number of pages: 69) (Publication Size: 1MB)




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Author(s) Meredith, C., C. Furl, and M. Friese
Description Mercury levels were measured in 50 individual bass and 25 fish composites during the fifth year of a long-term monitoring program to assess mercury levels in fish tissues across Washington State. Previous Department of Ecology studies identified elevated mercury levels which led to fish consumption advisories.

Mercury concentrations in individual bass ranged from 40 - 907 ppb, with a median of 163 ppb. Four percent of bass (2 of 50 samples) exceeded Washington’s water quality standard of 770 ppb. Seven individual bass and one composite sample were above the EPA recommended criterion guidance of 300 ppb.
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Contact Joan LeTourneau at 360-407-6764 or jlet461@ecy.wa.gov
Keywords Snake River, eastern Washington, WRIA 60, WRIA 28, lakes, fish, river, water, trend, Ecology, sediment, mercury, freshwater
WEB PAGE Mercury in fish tissue
WATERSHED Water Resource Inventory Areas
(WRIA 01,WRIA 22,WRIA 28,WRIA 35,WRIA 42,WRIA 60)
DATA Environmental Information Management (EIM) #HgFish09

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