By Angus M. Thuermer Jr., WyoFile.com
The American Lung Association gave Sublette County an F for ozone pollution, underscoring a persistent health danger believed to be caused by gas-field emissions, snow cover, little wind, winter sunshine and other factors.
The annual State of the Air report assembled data on ozone and fine particulate pollution, two of the most dangerous forms of air contamination, from across the nation. In 149 pages the association compared pollution levels to federal air quality standards to come up with grades and rankings.
The group also listed the number of persons that could be affected by tainted, or clean, air in any city or county. The 2021 report covers the years 2017-2019.