Produced primarily by the burning of fossil fuels, ammonium nitrate is a substantial portion of particulate pollution, a ...

The latest forecast and air quality conditions for the greater Los Angeles area, including beaches, valleys and desert regions.

The Republican-majority Senate's decision to revoke California's planned ban on vehicles that run on fossil fuels defies ...

There’s no better way to mark another trip around the sun than with a birthday trip that’s all about you and your favorite ...

Los Angeles has long struggled with air pollution, and despite progress over the decades, smog is still a major issue in the ...

California has used federal waivers to help clean up its air quality for decades. The U.S. Senate will likely revoke that ...

On days of heavy pollution in Sulphur, a southwest Louisiana town surrounded by more than 16 industrial plants, Cynthia ...

At which beaches are you more likely to get sick? Heal the Bay releases a look at what beaches earned high marks, and which ...

Meanwhile, a state task force’s call for beefed up air monitoring in areas affected by industrial pollution appears to be ...

Trump Administration Halts Harvard’s Ability to Enroll International Students The move was a major escalation in the administration’s efforts to pressure the university to fall in line with ...