Air Quality Warning issued for Pima County

The Pima County Department of Environmental Quality has declared an Ozone Action Day for the Tucson area through 8 p.m. Wednesday. In cooperation with the National Weather Service, an Air Quality Alert has been issued for Pima County effective May 22 at 1:53 p.m.

This means that the forecast weather conditions, combined with existing ozone levels, are expected to result in local maximum 8-hour ozone concentrations that pose a health risk. The negative health effects increase as air quality deteriorates.

Ozone is an air pollutant that can cause breathing difficulties in children and the elderly, as well as in people with respiratory problems. It is recommended to reduce physical activity.

People are encouraged to carpool, telecommute or use public transportation. Use of gasoline-powered equipment should be reduced or done late in the day.

How does Arizona fare?These are the most polluted cities in the US

For details about this Ozone Action Day, visit the PDEQ website at www.pima.gov/deq or call 520-724-6885.

For the latest watches and warnings, visit the Arizona Republic’s weather alerts page.

How do I protect myself on days with high air pollution?

If air quality is poor, the Arizona Department of Environmental Quality recommends that you pay more attention to staying outdoors. Ozone levels are generally highest in the afternoon. Therefore, reschedule your activities and take more breaks.

How to avoid the health risks associated with ozone:

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