Urban ash from the California wildfires that has settled across the state has now been found more than 100 miles offshore.

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

Fort Eisenhower residents have voiced concerns about the use of controlled burns and recent mechanical mulching operations ...

Reps. Laura Friedman, D-Burbank, and Judy Chu, D-Pasadena, were joined by Reps. Brad Sherman, D-Sherman Oaks, and George ...

As hazardous chemicals pollute the air after devastating wildfires, officials call for increased monitoring to protect ...

The catastrophic fires in Los Angeles are far from extinguished, but the blame game is already raging. Apocalyptic images of entire communities returned to ash have been interspliced with a steady ...

The Supreme Court directed Punjab, Haryana, and Uttar Pradesh to review proposed solutions to crop residue management, and ...

Learn about the lasting impact of wildfire smoke on urban surfaces and human health. Discover how these toxic pollutants ...

As crews work to clean up from the Los Angeles wildfires, city officials and residents are opposing the designation of a ...

When a fire burns in an urban area, it unleashes a slurry of chemicals. Scientists are trying to understand the chemistry at ...

Doctors from National Jewish Health talk about how to know if you’re at risk, and steps you can take to protect your heart ...

It’s not just Florida and California — from poisoned water supplies to infrastructure issues to polar vortices, Holly Baxter ...