Particulate Matter Research
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Accessible version: http://yosemite.epa.gov/opa/mmwebcon....
What is PM2.5 and what does it mean for human health? In Science in Action - Ed Edney, EPA Senior Research Scientist, tells us what it is, where it comes from, and how the research is being conducted in the field.
For more information about this research, see http://www.epa.gov/pmresearch/
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