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GVB has partnered with the United States EPA in their attempt to reduce global mercury emissions from coal and oil-fired power plants. While US power plants emit approximately 160 tons of mercury, China's yearly emissions exceed 1,000 tons. Outpacing Europe, India, Australia and Zaire, the emissions growth rate of China is estimated to be greater than the total amount of mercury released by the US in one year. Although 55 percent of mercury emissions come from natural sources like oceans, volcanoes and burning biomass, the remaining 45 percent comes from man-made processes. Atmospheric mercury can remain airborne for a year or more and only 20 percent is deposited at or near the source. This means that more than 80 percent of airborne mercury emissions travel great lengths from the source and eventually contaminate the seas, where fish and other creatures absorb the toxic metal. From 1978 to 1995, total coal consumption in China increased fourfold which subsequently raised mercury emissions to previously unseen levels.

Currently, EPA is providing technical assistance to Chinese partners for the assessment of mercury emissions in China. “The project is an extensive collaboration effort involving EPA, the U.S. Department of Energy, and the U.S. Geological Survey in the U.S., and SEPA, Tsinghua University, Zhejiang University, Institute of Geochemistry, and Global Village Beijing of China. The effort involves source characterization, emissions inventory, transport modeling, monitoring, development of a situational assessment, and development of public information materials on mercury risks and management strategies.”
Language: English
August 20, 2008
Popularity: 105

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