Letter to EPA on Proposed Revisions to the National Ambient Air Quality Standards for Particulate Matter

November 16, 2012

Excerpt: We write regarding the Environmental Protection Agency’s proposed revisions to the National Ambient Air Quality Standards for Particulate Matter, published on June 29, 2012, at 77 Fed. Reg. 38890.  In particular, we seek further information regarding the estimated compliance costs and public health benefits for the proposed new standards.

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