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Reviewing National Ambient Air Quality Standards (NAAQS)

Particulate Matter (PM) Standards -
Documents from Review Completed in 2012 -

Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for historical purposes. See the PM Standards Home Page for documents from the current review of the PM NAAQS.


File Description File Date File Types
US Court of Appeals, DC Circuit Court Decision, May 9, 2014 May 2014 PDF file
11pp, 69k

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