The LA area is once again the worst for ozone in the U.S., a pollutant impacting millions more people nationwide, the ...

An annual report from the American Lung Assn. showed that Los Angeles has improved its air quality but still deserves its ...

Residents across New York and New Jersey are dealing with poorer air quality than usual, but a new report revealed that even ...

Monitoring systems are not all encompassing and do not always pick up all of the hundreds of harmful chemicals released, ...

Various popular weather apps across Chicago showed that the air was unsafe to breathe early Wednesday morning, prompting ...

and other environmental health hazards and shared them with the public through the local Air Quality Index. But the ...

As fires burned in Los Angeles this year, newer toxin monitors found contaminants that aren’t measured by standard methods.