International study says pollution inhaled before pregnancy raises chance baby will have obesity, health challenges.

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

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

Poor air quality has been detected in multiple states surrounding California. The state has been hit with multiple deadly ...

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

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

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

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

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

Arizona is the only state with 'unhealthy' air quality. Part of it stems from our geography, but part also comes from our ...