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Title

Measuring Mercury Trends in Freshwater Fish in Washington State: 2007 Sampling Results

 
Publication number Date Published
08-03-027September 2008
VIEW NOW: Acrobat PDF format (Number of pages: 72) (Publication Size: 616KB)




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Author(s) Furl, C. and C. Meredith
Description Mercury concentrations were measured in 60 individual fish and 32 composite samples as part of the third year of long-term monitoring of mercury in fish tissues across Washington State. Previous Department of Ecology studies identified elevated mercury levels leading to fish consumption advisories.

A total of 73% of individuals and 28% of composites sampled had mercury concentrations higher than the EPA’s recommended water quality criterion of 300 ppb. A single four-year-old female bass from Lake Ozette contained a concentration of 1800 ppb. This sample was the highest mercury concentration recorded in a largemouth bass during the first three years of this long-term study.
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Contact Joan LeTourneau at 360-407-6764 or jlet461@ecy.wa.gov
Keywords Ecology, Environmental Protection Agency, fish, lake, mercury, toxic, trend, water, WRIA 20, WRIA 41, freshwater, lakes
WATERSHED Water Resource Inventory Areas
(WRIA 01,WRIA 03,WRIA 11,WRIA 20,WRIA 41,WRIA 59)
DATA Environmental Information Management (EIM) #HgFish07

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