Thank you for your interest in learning more about our air quality!
Make the Commitment  |  Ozone Pollution  |  No Burn Day?  |  For Kids  |  Links

Our Air and How to Keep it Clean

There is one thing that everyone who lives and visits Maricopa County has in common: we all breathe air. The average adult takes about 15 breaths per minute, inhaling nearly two gallons of air. With 21,600 breaths per day that equals 2,880 gallons of air each day.

Maricopa County Air Quality Department is asking everyone to help keep our air clean and our residents healthy.

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.
Read 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.
Read 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.
Read More

Make the Commitment

The Clean Air App

Download the Clean Air Make More App for iPhone, iPad and Android and receive real-time air quality information and information for reducing air pollution.
Get the App

Sign Up for Alerts

Get email and text alerts for High Pollution Advisories, Health Watches and other Maricopa County clean air updates.
Get Alerts

Ozone Pollution

Say the word “ozone” and most people immediately think of the good kind of ozone, which occurs in the stratosphere and protects us from the sun’s harmful UV radiation. But a bad form of ozone also exists in Maricopa County, of which far fewer residents are aware.

Ground-level ozone forms when emissions from vehicles, gasoline and diesel equipment, industrial and chemical processes and other everyday activities react to sunlight. Naturally, ozone pollution is more prevalent during the spring and summer months because these emissions — volatile organic compounds (VOCs, solvents and fuels) and nitrogen oxides (NOx) — react more readily from sunlight and in higher temperatures.

Ground–level ozone can worsen bronchitis, emphysema and asthma and reduce lung function and inflame the linings of the lungs. Breathing ozone can trigger a variety of health problems including chest pain, coughing, throat irritation and congestion. Residual effects from ground-level ozone are even more harmful to those with compromised lung functionality, the elderly and children.

Commit to One Day and Help Keep Ozone Away

Wood Burning Pollution

Burning wood in a fireplace, chiminea or fire pit provides a warm cozy gathering place for families and friends during the holiday season. It also provides the perfect conditions for increased air pollution that can harm the ones you love. Maricopa County has higher levels of air pollution caused by woodburning smoke, especially during the winter months. Both short- and long-term exposures to particle pollution from wood smoke has been linked to a variety of health effects.

The Maricopa County Air Quality Department provides several resources for determining whether it’s a No Burn Day, and has partnered with the Arizona Department of Environmental Quality to provide healthier alternatives to traditional wood burning.


Learn More About Wood Burning Pollution and No Burn Days

Air Quality for Kids

Gus T. Breeze

Did you know that kids breathe about two gallons of air every minute? The Maricopa Air Quality Department has produced a series of educational materials that make learning about air quality fun! Our mascot, Gus T. Breeze, makes regular appearances at schools, sporting events, and other community activities to help spread the word.


Learn More

More Ways to Connect

Report a Violation
Send Us Email
Call us at (602) 506-6010

About Clean Air Make More

Clean Air Make More is an educational outreach initiative created to inform Maricopa County residents about air pollution challenges we face in the county and provide them with the tools they need to take action. Created by the Maricopa County Air Quality Department and funded through fines collected from air quality violations, the primary focus of Clean Air Make More is to reduce the number of days this region exceeds the federal health standard for air pollution.