This measure, based on data from the Environmental Protection Agency, evaluates states on the number of days the Air Quality Index in counties was not rated “good.” U.S. News calculated a ...
Several Central Ohio and Southwest Ohio counties are under an air quality alert today. The National Weather ... an air quality index of 101, an alert is issued. Ozone is a gas made up of three ...
As thousands of acres burn across Southern California, wildfire smoke is causing poor air quality in the region and beyond.
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