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

On Thursday at 5:41 p.m. an air quality alert was reported by the NWS San Diego CA in effect until Saturday at 8 a.m. for ...

In a world of increasing wildfires and invisible irritants, we consulted experts to explain how to measure and correct air ...

As humans continue to pump more gases into the atmosphere, you've probably seen air quality alerts more often, but what does ...

Many power plants benefiting from exemptions rank among the nation’s worst polluters. The Trump administration says cheaper energy is the goal.

Community groups are fighting an unusual Louisiana law that restricts how they use data from air-quality monitors, saying it ...

A coalition of Louisiana environmental groups is suing the state over a law they say violates their free speech rights by ...

With the fate of EPA regulations uncertain, advocates say local environmental protection efforts, like a community air ...

Breathing clean air while spending time at home is essential, but which is better in the toss-up between air scrubber vs. air ...