Mercury in Coal
Mercury is present in coal and some is emitted to the atmosphere when coal is burned in power plants. The U.S. EPA has required the electric utilities that burn coal to document the amount of mercury in their feed stocks. Below are links to plots of the data through the end of 1999. U.S. Environmental Protection Agency, Unified Air Toxics Program: Electric Utility Steam Generating Units Hazardous Air Pollutant Emission Study, 2000,
http://www.epa.gov/ttn/atw/combust/utiltox/utoxpg.html#DA3
The scatter plots show relationships between Hg (total) and sulfur content in the various coal types. The histograms show the distribution of mercury concentrations in fairly large ensembles.
Please note: These pages open slow due to the graphics resolution.
Anthracite
• Sulfur
• Histogram
Bituminous
• Sulfur
• Histogram
Lignite
• Sulfur
• Histogram
Subbituminous
• Sulfur
• Histogram
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