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 extended through Friday, April 26

    Posted to Air Quality ONLY on April 25, 2019

    Thursday's Ozone High Pollution Advisory extended through Friday, April 26, 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 Thursday, April 25

    Posted to Air Quality on April 24, 2019

    Ozone High Pollution Advisory issued for Thursday, April 25, 2019. This HPA is due to ozone levels expected to accumulate enough to exceed the federal health standard for ozone. Read on...
  3. '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...
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  1. Training
  2. Department Events

April 2019

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