Air Quality Department

For more air quality information, please visit

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  1. Air Quality Department


    Physical Address
    3800 N Central Ave, Suite 1400
    Phoenix, AZ 85012

    Phone: 602-506-6010
    Fax: 602-372-0587

  2. Permit Intake Locations & Parking Map


The Library

The Library

A collection of all of our applications, forms, handbooks, reports, rules, and other documents

Resources for the Regulated Community

Maricopa County Resources for the Regulated Community

The most frequently-used pages and documents for the regulated community

Get Involved


Get Involved

Tools for the public to help you be informed about and get involved in your air quality

  1. Ozone High Pollution Advisory issued for Tuesday, June 25.

    Posted to Air Quality on June 24, 2019

    Ozone High Pollution Advisory issued for Tuesday, June 25, 2019. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone. Read on...
  2. Ozone High Pollution Advisory issued for Monday, June 24.

    Posted to Air Quality on June 24, 2019

    Ozone High Pollution Advisory issued for Monday, June 24, 2019. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone. Read on...
  3. REVISED: EPA proposes Maricopa County air quality attained the 2008 ozone health standard

    Posted to Air Quality on June 20, 2019

    The Environmental Protection Agency (EPA) is proposing the Phoenix-Mesa ozone nonattainment area met the 2008 Ozone National Ambient Air Quality Standards (NAAQS). Read on...
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  1. Training
  2. Department Events

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