"Freedom to Breathe" campaign was launched in Allegheny County by the Black Appalachian Coalition to address air pollution in ...

The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

Research reveals that even low levels of air pollution significantly increase the risk of respiratory infections in adults, ...

Light pollution is increasing globally, and having a negative impact on wildlife and humans. But the solutions are ...