Healthy Climate Wisconsin: New world air quality report names Beloit the most polluted regional city in the U.S.
Beloit, WI – Today IQAir released its 2023 World Air Quality Report, which found that Beloit, Wisconsin was the most polluted regional city in the U.S. The report analyzed particulate matter (PM2.5) levels from more than 30,000 air monitors in 7,812 global cities.








