Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires.

The air quality index (AQI) in many LA regions looks good, but that doesn't mean the air is safe. Why it matters: The AQI in ...

After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free ...

So the AQI could say that the air is good, even if there’s visible ash on your house or street. There are ways to measure the ...

The LA wildfires have burned tens of thousands of acres – but on some weather maps, air quality still looks good. What’s ...

Wear a tight-fitting N95 mask at the bare minimum, but a P100 is better, experts say. Wear long sleeves, eye protection, closed-toed shoes and cut-resistant gloves. Clean or decontaminate anything ...

“There’s all kinds of chemicals that you cannot see in the air. They are not measured by the Air Quality Index — and they’re extraordinarily toxic,” California Communities Against Toxics ...

According to UCLA ‘s air quality website, campus air quality has ... Only five major pollutants, including PM2.5, are measured by AQIs from the U.S. Environmental Protection Agency.

"We must record here that if the Commission finds that the AQI goes above 350, as a precautionary measure, Staqe-III measures will have to be immediately implemented. If the AQI crosses 400 on a given ...

The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) ...