The iconic skyline of downtown Los Angeles has been clouded by smog for decades, so this title should come as no surprise to ...

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

More than 156 million Americans live among unhealthy levels of air pollution, an annual report from the American Lung Association found.

UCLA's annual survey reveals growing concerns over the high cost of living and deportation fears among LA County residents.

Volckens shipped 10 air pollution detectors to Los Angeles to measure the amounts of heavy metals, benzene, and other chemicals released by the flames, which burned more than 16,000 homes, businesses, ...

As the fires burned in Los Angeles, scientists and local air regulators deployed monitors to measure the levels of heavy ...