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

    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. 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...
  2. 'Commit to One Day, Help Keep Ozone Away' Campaign Kicks Off

    Posted to Air Quality on April 16, 2019

    Maricopa County Air Quality Department is asking everyone to make a commitment at least one day a week to help fight ground-level ozone. Read on...
  3. Mowing Down Pollution

    Posted to Air Quality on March 19, 2019

    Maricopa County Air Quality Department is relaunching the Mowing Down Pollution program. Read on...
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  1. Training
  2. Department Events

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