So far this year, the South Coast air basin, which includes Los Angeles, Orange, Riverside and San Bernardino counties, has ...

LOS ANGELES (KABC) -- The Los Angeles metropolitan area has more seasons than winter, spring, summer and fall -- we have a fifth season of sorts that traditionally begins around this time of year: ...

For more than a decade, the United States dramatically reduced its national smog levels, but since 2015 smoke from ...

Sunny skies and sizzling temperatures are coming Sacramento’s way — but the summer weather also brings the dangers of smog looming across the capital region. The haze is more than a blemish on the ...

A recent study finds that smog levels have increased in the United States and may cause serious health hazards in the near ...

Texas has seen more days with unhealthy levels of smog pollution this year than it has in a decade, state data shows, as vehicle and industrial emissions react with record-high temperatures, spiking ...

Government officials whose job it is to clean the nation’s worst smog from Southern California’s air should be embarrassed. Instead of working together to cut lung-damaging ozone pollution, they are ...

IQAir, a Swiss company that measures global air quality, regularly designates Kazakhstan, Kyrgyzstan, and Uzbekistan’s major cities as having “very unhealthy” or “hazardous” air.