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Farmers Market
Santa Rosa
Sonoma County

Air Quality Fact

Today, the Bay Area’s largest source of smog forming emissions – over 60% – comes from mobile sources like cars, trucks, buses and construction equipment.   The number of mobile sources will rise considerably along with expected population growth.

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Wood Burning Status

The 2009-10 Winter Spare the Air season ended on February 28. There is currently no wood burning ban in place.

The Bay Area burn status will be updated daily during the 2010-11 Winter Spare the Air season beginning November 1.

Winter Spare the Air Suns

Air Quality in the Bay Area

In the Bay Area, as in the entire state of California, a certain amount of air pollution comes from stationary industrial sources, such as refineries and power plants. But a greater percentage of harmful air emissions come from cars and trucks, construction equipment, and other mobile sources. California has more cars per household (1.8) than any other state, along with a thriving business economy and a continually expanding population. All of these factors contribute to the state and regional air quality challenges.