The Air Monitoring Division provides an accurate and timely representation of the ambient air quality within Maricopa County. In cooperation with the United States Environmental Protection Agency (EPA) and other governmental agencies, the Division operates air quality monitoring sites and a mobile air monitoring program to measure pollutants, including:
Particulates Matter (PM10 and PM2.5)
The data from these sites are used in a variety of different ways, including the ability to determine attainment status with the Clean Air Act, modeling for new sources and providing data to Air Quality Forecaster.
Maricopa County Air Monitoring Division offers enhanced data from the monitoring network including:
You can help to maintain compliance with air quality standards by signing up for notification of a Rapid Response event.
When dust pollution levels begin to rise, the Maricopa County Air Quality Department will send you a message notifying you of where the pollution hot spot is and what steps you will need to do to help prevent an exceedance of the health standard.