SAN FRANCISCO — Stagnant air has forced San Francisco Bay Area air quality officials to issue a pollution alert.

Residents are asked to limit driving. Burning wood is illegal during Spare the Air days.

The San Francisco Chronicle (http://bit.ly/uI0UTz ) says it's the eighth Spare the Air day since Dec. 7.

Bay Area Air Quality Management District spokesman Ralph Borrmann says skies appear to be clear, but cold air near the ground is trapping pollutants and creating a health hazard.

Residents are urged to take bikes, public transit or carpools instead of driving solo, to cook indoors rather than barbecue and to avoid using gas-powered gardening equipment.

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Information from: San Francisco Chronicle, http://www.sfgate.com

School openings

Schools that resumed Monday:

Bellevue

Bennett Valley

Oak Grove

Roseland School District

Sonoma Valley District schools except for Dunbar, which is reopening today

Sonoma County alternative education classes at Amarosa Academy

Schools resuming today:

Rincon Valley

Schools resuming Wednesday:

Geyserville (tentatively)

Schools resuming Friday

Kenwood

Santa Rosa City Schools: Biella, Brook Hill, Burbank, Hidden Valley, Lehman, Lincoln, Monroe, Proctor Terrace and Steele Lane elementary schools; Rincon Valley middle and accelerated charter schools; Maria Carrillo and Piner high schools.

Schools Monday, Oct. 30:

Mark West

Piner Olivet Union

Santa Rosa City Schools: Comstock, Cook, Santa Rosa and Slater middle schools; Elsie Allen, Montgomery, Ridgway and Santa Rosa high schools; Santa Rosa French American and Arts charter schools; Cesar Chavez Language Academy; Lewis Preschool.