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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 Nogales, AZ

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Actions on this page:

  • August 2014: Proposed Approval of the PM2.5 Emissions Inventories for the Nogales, Arizona Nonattainment Area
  • January 2013: Final Rule Determining Attainment for the 2006 24-Hour PM2.5 National Ambient Air Quality Standard in the Nogales Nonattainment Area
  • October 2012: Proposed Determination of Attainment for the 2006 24-Hour PM2.5 National Ambient Air Quality Standard in the Nogales Nonattainment Area
  • September 2012: Final Approval of the 2012 Nogales PM10 Plan
  • June 2012: Proposed Approval of the 2012 Nogales PM10 Plan
  • January 2011: Determination of Attainment of the PM10 Standard for Nogales, AZ, as of the 1994 Deadline

August 2014: Proposed Approval of the PM2.5 Emissions Inventories for the Nogales, Arizona Nonattainment Area

August 20, 2014 - EPA proposed to approve the 2008 and 2010 PM2.5 and precursor pollutant emissions inventories for the Nogales PM2.5 nonattainment area. These emissions inventories were submitted by the State of Arizona to address the Clean Air Act requirements for Nogales under the 2006 PM2.5 National Ambient Air Quality Standards.

Contact Information
Jerry Wamsley (Wamsley.Jerry@epa.gov )


January 2013: Final Rule Determining Attainment for the 2006 24-Hour PM2.5 National Ambient Air Quality Standard in the Nogales Nonattainment Area

October 2012: Proposed Determination of Attainment for the 2006 24-Hour PM2.5 National Ambient Air Quality Standard in the Nogales Nonattainment Area


September 2012: Final Approval of the 2012 Nogales PM10 Plan

EPA has taken final action to approve the moderate area plan for the Nogales, Arizona PM10 nonattainment area. This final rule is effective 30 days after publication in the Federal Register.

For further information, please contact Jerry Wamsley (Wamsley.Jerry@epa.gov)

June 2012: Proposed Approval of the 2012 Nogales PM10 Plan

On June 27, 2012, EPA proposed to approve the Moderate Area Plan for the Nogales, Arizona PM10 Nonattainment Area. A 30-day public comment period followed publication in the Federal Register.

For further information, please contact Jerry Wamsley (Wamsley.Jerry@epa.gov)


January 2011: Determination of Attainment of the PM10 Standard for Nogales, AZ, as of the 1994 Deadline

EPA has signed a final rule determining, based on quality-assured, certified ambient monitoring data, that the Nogales 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 Clean Air Act and our regulations require three years of quality-assured, State certified ambient air quality data to make this finding.

Related Documents

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

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