Air Quality

notification iconNOTICE: As of November 22, 2021 the Maricopa County Air Quality Department currently located at 3800 N. Central Ave., Phoenix, AZ 85012 will be relocating to 301 W Jefferson St, Suite 410, Phoenix, AZ 85003. Public Parking Information >> 

In alignment with CDC guidance, Maricopa County is instituting a masking policy for all county employees and visitors at all Maricopa County buildings regardless of vaccination status. Masks must be worn in all county facilities. Anyone without a mask will be denied entry.

Working to improve the air of Maricopa County so customers, residents, and visitors can live, work, and play in a healthy environment.



This site will provide you with information on the air quality forecast, current restrictions, pollution reduction incentive programs, classroom outreach, and tips to help reduce air pollution.


p: 602-506-6010Call: 602-506-6010
f: 602-372-0587Call: 602-372-0587

Locations and Hours
Customer Service Feedback
Report an Air Quality Concern: 602-372-2703

Media Requests: 602-506-6713


  1. Resources for the Regulated Community

    Resources for Regulated Community

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

  1. Rapid Response Notifications

    Rapid Response Notifications

    Sign up to receive an email or text when dust pollution levels begin to rise at selected air monitoring locations

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  1. Air Pollution Alerts

    Air Pollution Alerts

    Sign up to receive email and/or text alerts when a High Pollution Advisory or High Pollution Watch is issued in Maricopa County


The Maricopa County Air Quality Department's core values center on working closely with our customers, residents, and visitors to improve air quality through innovation, collaboration and technology. We serve our customers through timely, open, and honest communication and by maintaining a diverse and well-trained workforce that is respected for its positive attitude, integrity and stewardship of the public’s resources and the environment.