Long-term exposure to smog might increase the risk of Lewy body dementia, the brain disease that CNN founder Ted Turner ...

In “Smog and Sunshine,” UCLA’s Ann Carlson tells of the scientists, lawyers, government officials and community members ...

The Seattle area's air quality is generally better than in many parts of the U.S. — but the region still experiences ...

SMOG checks or emission tests exist due to the U.S. Environmental Protection Agency's (EPA) regulation on passenger vehicles. Each state sets limits of nitrogen oxides (NOx) from emitting past certain ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. Gross black dust on your windowsill.

Every morning, when you step outside in the garden, you always wonder to see a soft white mist or a thick yellow haze in your garden. But do you ever realise that what you are seeing outside is this ...