PHX Reporter

The Arizona Department of Environmental Quality (ADEQ) has issued an Ozone High Pollution Advisory (HPA) for Maricopa County for Monday, June 3, and Tuesday, June 4, 2024. This advisory is due to anticipated ozone levels expected to exceed the federal health standard.

Ground-level ozone forms when emissions from vehicles, gasoline and diesel equipment, industrial processes, and other everyday activities react with sunlight. Ozone pollution is more prevalent during spring and summer months due to increased sunlight.

While some individuals are more sensitive than others, all county residents can be affected by ground-level ozone pollution. It poses risks to lung health and can trigger asthma attacks. Children are particularly vulnerable because their lungs are still developing, they tend to be active outdoors, and they have a higher likelihood of having asthma. Adults with respiratory conditions and older adults are also at risk. The public is advised to limit outdoor activities while the HPA is in effect.

ADEQ and the Maricopa County Air Quality Department (MCAQD) recommend several measures for residents and businesses to reduce ozone pollution:

- Promote remote work to reduce traffic.

- Carpool, vanpool, or use public transportation.

- Avoid long drive-thru lines; park your car and go inside.

- Use bicycles or walk instead of driving.

- Sweep instead of using leaf blowers.

- Refuel vehicles after dark or during cooler evening hours.

- Use low-VOC or water-based paints and finishes.

- Delay painting projects until HPAs have passed.

- Ensure household cleaners and chemicals are sealed properly.

For more information on reducing air pollution, visit Maricopa.gov/AQ.

The High Pollution Advisory includes specific restrictions:

- Prohibition of wood burning in residential fireplaces, chimeneas, outdoor fire pits, etc., including those with burn permits for open burning.

- Government employees and contractors are prohibited from operating leaf blowers; residents are encouraged to avoid leaf blowing during HPAs.

- Avoidance of off-road vehicle use.