Hot weather means increased ozone risk

August 4, 2012

By Staff

NEW — 6 a.m. Aug. 4, 2012

Hot weather expected throughout Washington is expected to increase levels of ozone, the major ingredient of smog.

Forecasts call for high temperatures in the 80s and 90s throughout the state for the next few days. The conditions combine with vehicle exhaust, gasoline vapors and other air pollutants to produce higher levels of ozone.

Ozone at ground level can be harmful. The substance is the main ingredient of smog and can cause health problems.

The state Department of Ecology offers a video to provide more information about how ozone forms. Winds often carry ozone-forming pollutants away from urban sources to rural areas.

Unhealthy ozone levels can affect everyone, especially pose risks for people with lung and heart disease, children, older adults and active people. People should limit activities and time spent outdoors as ozone levels rise.

Monitor local air quality by using the Washington Air Quality Advisory website.

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