01 Dec '11, 11pm

SO2 Pollution Controls Bring Results

View Image Comparison View Both Images Scientists, regulators, and the electric power industry came together to address a pollution problem, and the result is cleaner air in the United States. The pollutant is sulfur dioxide, a key emission from coal-fired power plants that contributes to the formation of acid rain and to respiratory health problems. Scientists using the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite observed major reductions in sulfur dioxide (SO2 ) between 2005 and 2010 in Alabama, Georgia, Indiana, Kentucky, North Carolina, Ohio, Pennsylvania, and West Virginia. Led by Vitali Fioletov of Environment Canada, the research team found that sulfur dioxide levels near the region’s coal-fired power plants fell by nearly half since 2005. Those reductions are visible in the maps above, which depict average SO2 concentrations along the Appalachian Mou...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=76571&s...

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