A study of Colorado’s Marshall Fire found that the ‘toxic soup’ of pollutants stuck around for weeks. L.A. residents could ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

Because Trump would be unlikely to approve them, California has no choice but to abandon its groundbreaking rules for ...

Twelve Texas counties have recently exceeded federal air quality standards for particulate matter, commonly known as soot.

The fresh air came after days of acrid smoke from wildfires, but officials warned that conditions could rapidly worsen again.

An interview with Stephen Ladochy, a professor emeritus at Cal State L.A. who specializes in climatology, addresses the ...

The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

Los Angeles is now a week removed from the day that multiple devastating wildfires erupted to torch tens of thousands of ...

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

With this move, New York City becomes the first U.S. city to experiment with congestion pricing tolls, and joins a small ...

Wildfires in Los Angeles County continued to burn on Monday, January 13, 2025, as firefighters worked to contain portions of ...