Wildfire smoke can cause eye and throat irritation, coughing, wheezing, and shortness of breath — even for healthy people. It ...

Periods of extreme heat often lead to increased exposure to ground-level ozone, in addition to other negative effects. This ...

Freeway north of LA is under an air quality alert which was reported by the National Weather Service on Friday at 8:22 a.m.

An air quality alert went into effect for the metropolitan area went out Monday at midnight and continues until midnight ...

The National Weather Service announced that an air quality alert will remain in place until late Saturday evening "due to ...

Los Angeles County is included in an air quality alert reported by the National Weather Service on Friday at 8:22 a.m. The ...

Freeway north of LA is the focus of an air quality alert reported at 2:49 p.m. on Thursday by the National Weather Service. The alert is in effect until Friday Aug. 8, at 7 p.m.

When close to the Earth's surface, the gas becomes a pollutant which is particularly dangerous for vulnerable people. View on ...

On Thursday at 2:49 p.m. the NWS Los Angeles/Oxnard CA reported an air quality alert in effect until Friday at 7 p.m. The ...

Los Angeles County is the focus of an air quality alert reported at 2:49 p.m. on Thursday by the National Weather Service.