2024 "State of the Air" report ranks Cincinnati among top 25 most polluted US cities, with Hamilton County having the highest annual particle pollution in Ohio, primarily from transportation and local industry.
In the American Lung Association's 2024 "State of the Air" report, Cincinnati ranks among the top 25 most polluted cities in the US, with Hamilton County experiencing the highest annual particle pollution in Ohio. Cincinnati's ranking improved from 18th to 22nd this year. The primary sources of pollution are transportation, particularly from cars and heavy-duty trucks, and local industrial plants.
April 24, 2024
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