Reclaiming the Sierra

USGS releases new reports on mercury in the South Yuba River and impacts of suction dredge mining

January 28, 2011

Mercury contamination in California’s South Yuba River Implications for recreational gold mining From United States Geological Survey Newsroom Released: 1/25/2011 6:00:00 AM SACRAMENTO, Calif. – Gold dredging that disturbs fine-grained, mercury-laden sediment in California’s South Yuba River can allow higher amounts of mercury to enter the environment, potentially threatening food webs far downstream. Higher concentrations […]