High pollution advisory for Friday - East Valley Tribune: Phoenix & The Valley Of The Sun

High pollution advisory for Friday

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Posted: Thursday, June 9, 2011 1:12 pm

The Valley will continue to be under an ozone high pollution advisory Friday, the Arizona Department of Environmental Quality reports. An advisory was originally issued Thursday after high ozone levels were expected because of warming temperatures.

Ground level ozone is formed by a chemical reaction that occurs when other pollutants are heated by the sun. Central Phoenix and East Valley areas are most at risk for high ozone levels Friday, according to the ADEQ. A high pollution advisory is issued when ozone levels are expected to exceed federal health standards.

Because of high temperatures, the Valley’s “ozone season” typically runs April through September. Ozone can aggravate existing respiratory conditions such as asthma. People with these conditions, as well as the elderly and very young, should avoid time outdoors, especially during the early evening hours when ozone production can peak.

With the high pollution advisory, the Maricopa County Air Quality Department is continuing enforcement of the mandatory “No Burn Day” restriction for Maricopa County through midnight Friday. This restriction includes individuals and businesses that have burn permits for open burning.

To learn more about the air you’re breathing, visit www.cleanairmakemore.com

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