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Updated Thu., May 08 at 12:02 PM |
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Fri |
Sat |
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54 |
M |
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52 |
M |
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56 |
M |
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39 |
G |
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42 |
G |
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 Scroll over the numbers for an explanation of the AQI scale categories.
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 The Air Quality Forecast is updated several times daily, Monday - Friday.
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Winter 2007-08
PM Exceedances |
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Spare the Air Nights |
6 |
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National 24-hr PM2.5 Excess Days |
7 |
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National 24-hr PM10 Excess Days |
0 |
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California 24-hr PM10 Excess Days |
3 |
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Yearly Exceedance History |
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Note: There is a lag in reporting PM exceedance days. Official exceedances are determined by filter-based sampler data. Filter analyses take several weeks to complete. |
| 0 - 50 |
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| Good - No health effects. |
| 51 - 100 |
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| Moderate - Unusually sensitive people should consider limiting prolonged outdoor exertion. |
| 101 - 150 |
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| Unhealthy for Sensitive Groups - Active children and adults, and people with respiratory disease should limit outdoor exertion. |
| 151 - 200 |
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| Unhealthy - Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion. |
| 201 - 300 |
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| Very Unhealthy - Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion. |
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Spare the Air Program
Proposed Wood Smoke Regulation Information
The Air District is currently holding public meetings throughout the Bay Area to inform the public about the proposed Wood Smoke Rule, which looks to curb air pollution on Spare the Air Nights.
This winter’s Spare the Air Tonight season ended on Monday, February 11. There were six Spare the Air Tonight advisories issued in the winter of 2007-08, compared to 30 advisories issued the previous winter. We want to thank Bay Area residents for doing their part to keep the air clean this winter by refraining from burning wood, by using public transportation, and by taking other steps to reduce particulate pollution.
The Spare the Air summer season will begin in June. Details will be available later this spring.
The Spare the Air Program was established by the
Bay Area Air Quality Management District to educate people
about air pollution, and to encourage them to change their behavior
to prevent it.
On this site you will find answers to frequently
asked questions about air pollution, descriptions of its health
effects, information about how various communities and employers
are working to prevent pollution, clean air tips, and a variety
of other educational resources.
In addition, the air quality forecast allows
you to keep track of air quality conditions in your region of
the Bay Area.
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Wood Smoke Rebate Program
Due to overwhelming response to the Wood Smoke Rebate Program, all rebate vouchers have been assigned. The Wood Smoke Rebate Program is now closed. We want to thank Bay Area residents for their commitment to improving air quality.
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Go to 511.org to plan a car-free trip by taking transit, ridesharing, or bicycling. |
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