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Particulate Matter (PM) Pollution

2006 Particulate Matter (PM) National Ambient Air Quality Standards (NAAQS) Actions

EPA Makes Findings of Failure to Submit Infrastructure State Implementation Plans (SIPs) - 2006 PM2.5 Standard

September 8, 2011 - EPA issued findings that 6 states, Washington DC and Puerto Rico missed Clean Air Act deadlines for submitting plans, or elements of plans, for implementing EPA's national air quality standards for the 2006 PM2.5.

EPA Makes Findings of Failure to Submit State Implementation Plans (SIPs) - 2006 PM2.5 Standard

June 9, 2010 - EPA issued findings that 29 states missed Clean Air Act deadlines for submitting plans, or elements of plans, for implementing EPA's national air quality standards for the 2006 PM2.5.