Chicago ranked 7th most polluted major US city in 2024, down from 2nd the previous year, global report shows

Chicago was the seventh-most polluted major city in the country in 2024, according to a global air quality report released Tuesday. The average annual concentration of small particulate matter in the air led to a 35% decrease in the air pollution levels that had placed the city second in the previous year’s ranking. “The goal […]