Air Quality Alert
Areas affected:
Sublette, WY

WYC035-270200-

AIR QUALITY ALERT MESSAGE
WYOMING DEPARTMENT OF ENVIRONMENTAL QUALITY
RELAYED BY THE NATIONAL WEATHER SERVICE RIVERTON WY
1235 PM MDT Mon Mar 25 2019

…Ozone Action Day in Effect for Monday, March 25th, and Tuesday,
March 26th, 2019, for the Upper Green River Basin Ozone
Nonattainment Area…

The following message is transmitted at the request of the
Air Quality Division of the Wyoming Department of Environmental
Quality.

The Air Quality Division has issued an Ozone Action Day for Monday,
March 25th, and Tuesday, March 26th, 2019, for the Upper Green River
Basin Ozone Nonattainment Area. An Ozone Action Day is issued when
forecasted weather conditions are favorable for the formation of
ozone. Ozone appears to be elevated in the basin when there is a
presence of ozone-forming precursor emissions including oxides of
nitrogen and volatile organic compounds coupled with meteorological
conditions such as strong temperature inversions, low winds, snow
cover, and sunlight.

During the winter ozone season (January-March), everyone should
take actions to reduce precursor emissions and ground-level ozone
formation.

Ozone is an air pollutant that can cause respiratory distress
especially to children, the elderly, and people with existing
respiratory conditions such as asthma. People in these sensitive
groups should limit strenuous or extended outdoor activities,
especially in the afternoon and evening.

For more information on ozone and the health effects of ozone,
please visit the websites for the Wyoming Department of
Environmental Quality at deq.wyoming.gov and the Wyoming
Department of Health at www.health.wyo.gov.

Current information on ozone levels at the Air Quality Division’s
monitoring stations at Daniel South, Pinedale, Boulder, Big
Piney, and Juel Spring can be found at www.wyvisnet.com.

$$

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