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San Francisco Bay, California is considered a mercury-impaired watershed. Elevated concentrations of mercury are found in water and sediment as well as fish and estuarine birds. Sources of mercury to the watershed since 1845 include sediment-associated mercury from mercury mining, mercury losses from gold amalgamation activities in mines of the Sierra Nevada, aerial deposition of mercury from global and regional emissions to air, and the direct discharge of mercury to Bay waters associated with the urbanization and industrialization of the estuary. We assessed historical trends in mercury bioaccumulation by measuring mercury concentrations in feathers of the endangered California Ridgway’s rail (formerly California...
San Francisco Bay, California is considered a mercury-impaired watershed. Elevated concentrations of mercury are found in water and sediment as well as fish and estuarine birds. Sources of mercury to the watershed since 1845 include sediment-associated mercury from mercury mining, mercury losses from gold amalgamation activities in mines of the Sierra Nevada, aerial deposition of mercury from global and regional emissions to air, and the direct discharge of mercury to Bay waters associated with the urbanization and industrialization of the estuary. We assessed historical trends in mercury bioaccumulation by measuring mercury concentrations in feathers of the endangered California Ridgway’s rail (formerly California...
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The human-readable description of the individual record used to help determine the nature of the underlying physical data resource. Due to the general nature of the NDC, a fair amount of information about the data resource may need to be captured into this one general element. Example: Sample: Core Research Center, Cutting DD18210, from well operated by St. Michael Exploration, located in Weld County, CO, under lease 2-1 Grace State, with API number 0512310130.
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The human-readable description of the individual record used to help determine the nature of the underlying physical data resource. Due to the general nature of the NDC, a fair amount of information about the data resource may need to be captured into this one general element. Example: Sample: Core Research Center, Cutting DD18210, from well operated by St. Michael Exploration, located in Weld County, CO, under lease 2- 1 Grace State, with API number 0512310130.


    map background search result map search result map Historical methyl mercury in San Francisco Bay Historical methyl mercury in San Francisco Bay NGGDPP CSV File Example - Title should be short for display but distinguishable from other records. Title is used in listings and search results. NGGDPP XML File Example - Title should be short for display but distinguishable from other records. Title is used in listings and search results. Historical methyl mercury in San Francisco Bay Historical methyl mercury in San Francisco Bay