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What Is Spare the Air?
Alerts and Advisories
Our Impact
Reduce Your Impact
Commute Tips
Employer Program
Community Resource Teams
Spare the Air Youth
Understanding Air Quality
Air Quality Forecast
Reading the Air Quality Index
Wood Burning Rule
Air Pollutants and Health Effects
Data and Records
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Welcome
SpareTheAir.org has a new look. Same great tools and resources to help the Bay Air improve air quality.
Carpool Tips
How you get around makes a big difference to our region's air quality. Go green, go clean with your commute.
Employer Program
Join the more than 2,000 businesses and agencies in our Employer Program. Make Spare the Air company policy.
A Cleaner, Healthier Bay Area
Most air pollutants are human-caused and avoidable. What we do on an everyday basis has a big impact on keeping the Bay Area healthy.
A Cleaner, Healthier Bay Area
Most air pollutants are human-caused and avoidable. What we do on an everyday basis has a big impact on keeping the Bay Area healthy.
Easy, Breezy, Summer Tips
From April to October, vehicle exhaust and hot temperatures combine to form ozone, or "smog", which causes the most serious air quality problems.
Easy, Breezy, Summer Tips
From April to October, vehicle exhaust and hot temperatures combine to form ozone, or "smog", which causes the most serious air quality problems.
Get Alerts On-the-Go
Never miss a Spare the Air Alert. Sign up and customize your alerts to get them by phone, text, or email.
Get Alerts On-the-Go
Never miss a Spare the Air Alert. Sign up and customize your alerts to get them by phone, text, or email.
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San Francisco Bay Area
Air Quality Status
Sunday, 9/15
No Alert
Understanding Alerts and Advisories
See Full Forecast
5-Day Air Quality Forecast
Last Updated: Friday, September 13 at 11:35 AM
Fri
Sat
Sun
Mon
Tue
Northern Zone
67
51
42
46
G
Coast and Central Bay
61
49
46
53
M
Eastern Zone
126
101
49
50
G
South Central Bay
77
54
42
46
G
Santa Clara Valley
118
101
47
48
G
Sunday, September 15
Find Your Reporting Zone
How to Read the Forecast
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About
What Is Spare the Air?
Alerts and Advisories
Our Impact
Reduce Your Impact
Commute Tips
Employer Program
Community Resource Teams
Spare the Air Youth
Understanding Air Quality
Air Quality Forecast
Reading the Air Quality Index
Wood Burning Rule
Air Pollutants and Health Effects
Data and Records
Connect with Us
Sign Up for Alerts
Video Library
News and Events
