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Title

Determination of PBT Chemical Trends in Selected Washington Lakes Using Age-Dated Sediment Cores, 2009 Sampling Results

 
Publication number Date Published
10-03-035June 2010
VIEW NOW: Determination of PBT Chemical Trends in Selected Washington Lakes Using Age-Dated Sediment Cores, 2009 Sampling Results (Number of pages: 59) (Publication Size: 961KB)




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Author(s) Furl, C. and T. Roberts
Description Sediment cores were collected from American Lake, Black Lake, and Upper Twin Lake as part of a long-term study evaluating contaminant trends across the state. Contaminant analyses for 2009 included mercury, lead, and polycyclic aromatic hydrocarbons (PAHs).

Overlying contaminant trends for each core varied by lake and analyte. American Lake received the greatest historical contamination for all analytes. Contaminant concentrations at all three lakes have declined from their maximums. There were not enough PAH detections at Black or Upper Twin Lakes to describe trends.
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Keywords WRIA 43, county, sampling, contaminant, trend, chemical, Ecology, sediment, mercury, lake, lead, Asarco
WATERSHED Water Resource Inventory Areas
(WRIA 12,WRIA 43,WRIA 59)
DATA Environmental Information Management (EIM) #CFUR0007

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