The Bay Area Air Quality Management District said a fifth-straight Spare the Air alert will be in effect for Saturday due to an extended heat wave that is leading to unhealthy levels of smog in the region.

The Bay Area Air Quality Management District has announced Thursday will be the fourth straight day a Spare the Air alert is in effect in the region due to hot weather and weak winds that will combine with motor vehicle exhaust to create unhealthy levels of smog.

As the Bay Area swelters under a heat wave, a spare the air alert has been extended through Wednesday, the Bay Area Air Quality Management District announced Tuesday. The alert, which was issued for smog,

The Bay Area Air Quality Management District said a fifth consecutive Spare the Air alert will be in effect for Saturday due to an extended heat wave that is leading

A Spare the Air Alert was extended for Tuesday and Wednesday in the San Francisco Bay Area because ground-level ozone pollution concentrations were expected to remain unhealthy. "Very high inland temperatures and weak offshore winds,

High temperatures and light winds, combined with vehicle exhaust, will result in unhealthy air quality around the Bay Area, prompting an extension to the current Spare the Air alert, air district officials said Tuesday.