FOR IMMEDIATE RELEASE | High Pollution Advisory issued for ozone effective May 27, 2021, in the Phoenix area

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BACKGROUND

High Pollution Advisory (HPA) | Notifies the public that the level of an air pollutant is forecast to exceed the federal health standard.

The Arizona Department of Environmental Quality (ADEQ) is issuing a High Pollution Advisory (HPA) for ozone effective May 27, 2021, in the Phoenix area. ADEQ recommends that people limit outdoor activity while the HPA is in effect, especially children and adults with respiratory problems. Ground-level ozone forms when two types of pollutants — volatile organic compounds (VOCs) and nitrogen oxides (NOx) — react in sunlight. These pollutants come primarily from automobiles, but also from other sources, including industries, power plants and products, such as solvents and paints. Generally, the highest levels of ozone occur in the afternoon. Check the Hourly Air Quality Forecast on the Air Arizona Mobile App

 

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YESTERDAY

Phoenix Forecast | Today's AQI | Unhealthy for Sensitive Groups

 

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CONTACTS

Arizona Department of Environmental Quality (ADEQ) | Provides hourly forecasts for air quality in certain areas of the state and issues HPAs or HPWs when the appropriate conditions exist.

View ADEQ Website >

Public Information Officer | 602-540-8072 | Email >

Maricopa County Air Quality Department (MCAQD) | Regulatory agency for air quality in Maricopa County.

View MCAQD Website >

Public Information Officer | 602-506-6713 (office) | 602-526-7307 (cell) | Email >

Valley Metro | Eco-friendly public transit options to residents of greater Phoenix and Maricopa County.

View Valley Metro Website >

Communications Manager | 602-523-6004 | Email >

About ADEQ Under the Environmental Quality Act of 1986, the Arizona State Legislature established the Arizona Department of Environmental Quality in 1987 as the state agency for protecting and enhancing public health and the environment of Arizona. For more information, visit azdeq.gov.