Air Quality Department

For more air quality information, please visit

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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. 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...
  2. Funding Available through FY19 DERA State Clean Diesel Grant Program

    Posted to Air Quality on March 5, 2019

    Maricopa County Air Quality Department is administering the EPA's Diesel Emission Reduction Act (DERA) State Clean Diesel Program grant. Read on...
  3. Weed Removal

    Posted to Air Quality on February 26, 2019

    Avoid generating dust when removing weeds. Read on...
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March 2019

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