Human Health Risk Assessment
About This Report
This human health risk assessment (HHRA) describes which chemicals in streams and lakes in the Greater Lake Washington watershed are predominantly responsible for human health risks and the relative magnitudes of these risks. This HHRA also provides a list of important exposure routes in the Greater Lake Washington watershed. The risk assessment process was utilized to ensure that King County’s environmental monitoring projects and programs are appropriately addressing those chemicals and media which pose the greatest risks. To the extent possible using water, sediment, and tissue data from 1995 to 2003, the risk assessment identifies locations with elevated risks.
The HHRA results are principally intended to identify data gaps and guide future assessment and monitoring efforts, but given the large geographic area of assessment, the data requirements are very high to provide sufficient data density. With proper definition of populations of interest, statistically robust random sampling can reduce data requirements. However, such a broad scale investigation will require concrete objectives to ensure the data answer definite questions and hypotheses.
Viewing the Report
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