Measuring Mercury Trends in Freshwater Fish in Washington State: 2007 Sampling Results
Acrobat PDF format (Number of pages: 72) (Publication Size: 616KB)
|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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|Keywords||WRIA 41, WRIA 20, lakes, fish, water, trend, Ecology, toxic, mercury, lake, freshwater, Environmental Protection Agency|
|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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