US Cities with Worst Air Quality Overall
Cities with the most polluted air based on 2025 EPA monitoring data. These communities face the greatest health risks from air pollution.
Health Impact
40.9M
People in highly polluted areas
8
Avg unhealthy days per city
2122
Highest AQI recorded
Showing 1–0 of 0 cities
Protect Your Health from Air Pollution
Living in areas with poor air quality? Learn about air purifiers and other ways to reduce your exposure to harmful pollutants.