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Carbon Monoxide Pollution over the United States and Canada
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Published June 10, 2011
The high carbon monoxide concentrations shown in this satellite-based map reflect the poor air quality seen in the central and eastern United States on June 8, 2011.
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Beijing Restrictions Reduce Pollution
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Published December 17, 2008
Measures taken by Chinese officials to improve Beijing’s air quality during the 2008 summer Olympic games dramatically cut concentrations of two major pollutants, say NASA researchers.
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