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

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

In the current day we wake up to our air purifiers, smartphones warning us that the air quality is in the ‘very poor’ or ...

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

Karen Garcia is a reporter on the Fast Break Desk, the team that has a pulse on breaking news at the Los Angeles Times. She was previously a reporter on the Utility Journalism Team, which focused on ...

Some studies have indicated that young children, especially those under the age of 4, are at particular risk because their ...

Several parts of southern California are currently under windblown dust and ash advisories as deadly wildfires continue to ...

Wildfire smoke can pose hazards from particle pollution even after only short-term exposure. Experts reveal common symptoms ...

The fires burning across Los Angeles County have sent billowing plumes of black smoke into the air, posing a major health ...

Already known for having some of the worst air quality in the U.S., people in Southern California are now also at risk of ...

Wildfire smoke causes particularly dangerous air quality, especially for sensitive groups including children and pregnant people.