A Memphis city government's air quality test found that the air pollution near Elon Musk's xAI data center isn't a threat.

MIchigan's air quality will be unhealthy for some groups Friday and Saturday. Check the air quality index map to see if it's ...

The future of environmental protection in America is changing, with states taking over responsibilities previously handled by ...

The U.S. has one of the world’s most advanced systems to monitor air pollutants. Can it keep up with a changing climate?