NOTICE: 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.
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.