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Published July 13, 2010, 09:23 AM

EPA sets foundation for unprecedented dust regulation

WASHINGTON — In the latest step in its review of the National Ambient Air Quality Standards (NAAQS), the U.S. Environmental Protection Agency (EPA) established the foundation for unprecedented regulation of dust. According to EPA’s Second Draft Policy Assessment for Particulate Matter (PM), issued late last week, EPA may consider regulating coarse PM at levels as low as 65-85 µg/m3, twice as stringent as the current standard.

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