Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

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

The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

Ash from the wildfires, which can irritate your skin or lungs, falls out of the air and settles onto the ground and therefore ...

As people return to the structures spared from Los Angeles wildfires, experts warn that they should be careful of the air ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

Officials are warning of windblown ash and other pollutants from Los Angeles-area fires and say air quality readers won't ...

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 ...

A total of six towns in Monmouth and Ocean counties have unhealthy air and ozone levels, according to AirNow.gov.

The popular tourist destination recorded an Air Quality Index of 168 which is considered ‘unhealthy’ while the level of PM2.5 ...

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

Data from IQAir, an international air quality monitoring agency, shows that Delhi, India, recorded an AQI of 218, ranking as the second most polluted city globally. Hanoi, Vietnam, followed with an ...