The Air Quality Division (AQD) of Wyoming*s Department of Environmental Quality (DEQ), in conjunction with the Wyoming Department of Health (WDH), is issuing an ozone advisory for Monday, March 24, 2008, for the Upper Green River Basin, in
Sublette County.

Ozone is an air pollutant that can cause respiratory health effects
especially to children, the elderly and people with existing respiratory
conditions. People in these sensitive groups should limit strenuous or
extended outdoor activities, especially in the afternoon and evening.
More information on ozone and the health effects of ozone are available
at the Wyoming Department of Health website, http://www.health.wyo.gov.

Predictions of elevated ozone are based on evaluation of weather
forecasts, and are therefore only as reliable as those forecasts. DEQ
is conducting an intensive study of wintertime ozone formation in the
Upper Green River Basin. Ozone appears to be elevated in the Basin when
there are strong temperature inversions, low winds, snow cover, and
bright sunlight.

Current information on ozone levels at the Air Quality Division*s
monitoring stations at Daniel, Jonah, and Boulder can be found at
www.wyvisnet.com.

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