Freeway north of LA is the focus of an updated air quality alert reported at 5:03 p.m. on Wednesday by the National Weather ...

Los Angeles braces for a hot day with an Air Quality Alert due to high ozone levels, affecting sensitive groups and advising precautions like staying indoors and limiting outdoor activities.

A series of live maps from Windy.com highlighted which parts of the U.S. were experiencing elevated levels of air pollution on Friday. The maps showed data for multiple types of pollutant, including ...

As Los Angeles grew exponentially in the mid-1900s and the car became the apple of capitalism's eye, the smog arose and ...

Millions of people across three states have been urged to remain indoors amid concerns over high air pollution levels. Air quality advisories were issued on Thursday for parts of Connecticut, Colorado ...

The Pentagon said Tuesday it is ending the deployment of 2,000 National Guard troops in Los Angeles, accounting for nearly half of the soldiers sent to ...

The Trump administration said Tuesday it is ending the deployment of 2,000 National Guard troops in Los Angeles.

The alert comes as humidity is expected to increase Tuesday, with high temperatures in the mid 80s to low 90s, with heat indices reaching 100 by Wednesday.

The 72-year-old former mayor (Pasadena), city manager (Ventura, Azusa, Santa Monica) and deputy mayor (Los Angeles) returned ...

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

An air quality advisory is in effect for the Bay Area on Friday, as smoke from wildfires burning in far Northern California ...

Six months after devastating wildfires swept through Los Angeles communities, comprehensive testing shows Santa Monica Bay ...