ozone pollution

Wildfire Smoke Blankets Bay Area But Vehicle Exhaust Is Main Culprit In Sunday's Spare The Air AlertSmoke from Northern California wildfires hung over the Bay Area on Saturday and a Spare the Air alert was issued for Sunday, though officials said it was ozone -- not smoke -- that prompted the warning.
Spare The Air Day Declared For Friday; Bay Area Temps To SoarWith temperatures expected to rise this weekend, the Bay Area Air Quality Management District has issued a "Spare the Air" alert for Friday.

More From CBS San Francisco

Music's Biggest Night
Your Bay Area Guide To Valentine's Day

Listen Live