Jump to main content or area navigation.

Contact EPA Pacific Southwest Air Program

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Air Actions, Arizona

Particulate Matter Actions in Paul Spur/Douglas, AZ

Internet Explorer Users
If the Federal Register links on this page do not work correctly for you, right-click the link, copy the link location, and paste into the browser address field. You may also try using a different browser.

Actions on this page:

  • July 2012: Final Determination of Attainment of the PM10 Standard for Paul Spur/Douglas, Arizona
  • May 2012: Proposed Determination of Attainment of the PM10 Standard for Paul Spur/Douglas, Arizona
  • January 2011: Particulate Matter in Paul Spur/Douglas, AZ

July 2012: Final Determination of Attainment of the PM10 Standard for Paul Spur/Douglas, Arizona

Based on ambient monitoring data from 2009 to 2011, we finalized our determination that the Paul Spur/Douglas nonattainment area in Arizona is currently attaining the national ambient air quality standard (NAAQS) for particulate matter less than ten microns in diameter (PM10).

May 2012: Proposed Determination of Attainment of the PM10 Standard for Paul Spur/Douglas, Arizona

Based on ambient monitoring data from 2009 to 2011, we proposed to determine that the Paul Spur/Douglas nonattainment area in Arizona is currently attaining the national ambient air quality standard (NAAQS) for particulate matter less than ten microns in diameter (PM10). We have provided for a 30-day period to receive public comment.


January 2011: Particulate Matter in Paul Spur/Douglas, AZ

EPA has signed a direct final rule determining, based on quality-assured, certified ambient monitoring data, that the Paul Spur/Douglas area in Arizona attained the 1987 primary National Ambient Air Quality Standards (NAAQS) for particulate matter (PM-10) as of the applicable attainment date of December 31, 1994. The Act and our regulations require three years of quality-assured, certified ambient air quality data to make this finding. We also determine that the area has not continued to attain the standard through the present.

Related Documents

Contact Information
Wienke Tax (tax.wienke@epa.gov)
Office of Air Planning
EPA Region 9
(415) 947-4192

Pacific Southwest NewsroomPacific Southwest Programs Grants & FundingUS-Mexico Border Media CenterCareers About EPA Region 9 (Pacific Southwest)A-Z Index

Jump to main content.