Our Air Quality


About Air Pollution

To reduce air pollution, it helps to understand what it is and where it comes from. Here are some facts about air pollution, its most common types in Maricopa County and how you can keep our air clean.


The Effects

What are the effects of air pollution? Maricopa County and the U.S. Environmental Protection Agency have designated six criteria pollutants, but particulate matter (PM) and ozone are the Valley’s toughest to battle. Learn more >

The Offenders

Human activity is behind most of our top air pollution causes, but there is a way to clean our air. There are plenty of easy changes each of us can commit to do to stop polluting. Learn more >


Find out what restrictions, if any, are prohibited based on the current air quality status in Maricopa County. Depending on the status of air quality, restrictions will change, so be sure to take note of the differences. Learn more >

The Solution

Only we, the residents and visitors living and breathing here in Maricopa County, can make the air healthier for all of us. Learn more >