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Trends in Metals in the Bay
Trends in PARWQP Inputs
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Linkage of Bioaccumulation and Biological Effects to Changes in Pollutant Loads in South San Francisco Bay
Michelle Hornberger, Samuel Luoma, Daniel Cain, Cynthia Brown, Robin Bouse,
Francis Parchaso, Christopher Wellise, and Janet Thompson

Point source influence:

Annual mean Cu loadCu loads from the PARWQP strongly influenced Cu bioaccumulation.


Regional influence:

Both Cu and Zn concentrations in M. balthica strongly correlated to surrogate measures of urban run-off. These relationships were not evident prior to 1989, when the point-source dominated metal bioaccumulation.

Cu in M. balthica vs. precipitation

Zn in M. balthica vs. precipitation

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