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Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Particulate Matter in Pinal County, AZ
Particulate Matter in Pinal County, AZ
- May 23, 2012: Final Action to redesignate a portion of Pinal County to nonattainment for the 1987 24-hour PM-10 national ambient air quality standard
- October 1, 2010: Proposal to redesignate as nonattainment for the PM-10 NAAQS
Final Redesignation as Nonattainment for the PM-10 NAAQS
On May 23, 2012, EPA redesignated an area in western Pinal County, Arizona to nonattainment for the 1987 24-hour National Ambient Air Quality Standard (NAAQS) for particulate matter (PM-10). Today’s final action will become effective 30 days from the date of publication in the Federal Register.
Related Documents
- Final Action - Federal Register Notice
- Fact Sheet (including map of nonattainment area) (PDF) (4pp, 172K)
- Press Release
Contact Information
Ginger Vagenas (vagenas.ginger@epa.gov)
Office of Air Planning
EPA Region 9
(415) 972-3964
Particulate Matter in Pinal County, Arizona
EPA has proposed to redesignate the western portion of Pinal County, Arizona nonattainment for the 1987 24-hour National Ambient Air Quality Standards (NAAQS) for particulate matter (PM-10) based on ambient monitoring data that indicate widespread and frequent violations of the standard. EPA is accepting comments on the proposal until November 1, 2010.
Related Documents
Contact Information
Ginger Vagenas (vagenas.ginger@epa.gov)
Office of Air Planning
EPA Region 9
(415) 972-3964
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