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.

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