The Air District is issuing a Spare the Air Alert for tomorrow, Friday, December 20, which bans burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors.
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A Healthy Breathing Environment For Every Bay Area Resident
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San Mateo County
Learn about San Mateo County - its climate, potential air pollution concerns, and current air quality. You can also view upcoming Air District events in San Mateo County and read about local efforts to improve air quality.
Latest News
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Spare the Air Alert issued for today, Sunday, December 8December 08, 2024
The Air District is issuing a Spare the Air Alert for today, Sunday, December 8, which bans burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors. Regional wood burning and easterly winds transporting air pollution into the Bay Area from the Central Valley have contributed to high overnight concentrations of fine particle pollution and unhealthy air quality. Although light northerly winds will bring some improvement later in the afternoon and evening, parts of the Bay Area will still experience unhealthy air quality throughout the day. Breezier northeasterly winds will bring more substantial improvement in air quality for Monday.
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The Bay Area Air Quality Management District is issuing the winter season’s first Spare the Air Alerts for Sunday, December 1, and Monday, December 2, which ban burning wood, manufactured fire logs or any other solid fuel, both indoors and outdoors.
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Air District asks public to not burn wood over Thanksgiving holidayNovember 26, 2024
The Bay Area Air Quality Management District is asking residents to not burn wood over the Thanksgiving holiday to help reduce air pollution and protect public health. As we enter the holiday season, gathering around a fireplace may be a tradition for many, but there are serious health impacts associated with wood burning.
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November 19, 2024
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November 12, 2024
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November 06, 2024
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Upcoming Events
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Other News Articles
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10/31/2024 Air District and CARB fine Valero Refining Co. $82 million for air quality violations
October 31, 2024
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10/25/2024 Air District issues air quality advisory for Friday and Saturday
October 25, 2024
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10/18/2024 Air District issues air quality advisory for Friday
October 18, 2024
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10/17/2024 Air District to host Clean Air Talk in East Palo Alto on November 2
October 17, 2024
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10/17/2024 Air District fines Radius Recycling, formerly Schnitzer Steel, $575,000 for air quality violations
October 17, 2024
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10/8/2024 Air District issues air quality advisory for Novato
October 8, 2024
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10/8/2024 Air District to host Building Appliance Rules learning session on October 22
October 8, 2024
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10/7/2024 Air District to host public meeting on Radius Recycling permit application
October 7, 2024
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10/7/2024 Air District’s James Cary Smith Community Grant Program uplifts Bay Area communities
October 7, 2024
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10/5/2024 Air District extends Spare the Air Alert through Sunday
October 5, 2024
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10/4/2024 Air District issues Spare the Air Alert for Saturday
October 4, 2024
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10/2/2024 Air District extends Spare the Air Alert through Thursday
October 2, 2024
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10/2/2024 Air District fines Marathon Martinez Refinery $5 million
October 2, 2024
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10/2/2024 Air District releases annual Air Toxics Report and online Facility Toxic Emissions and Prioritization Tool
October 2, 2024
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10/1/2024 Air District extends Spare the Air Alert through Wednesday
October 1, 2024
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10/1/2024 Regional Agencies Mark Milestone in the Mandatory Bay Area Commuter Benefits Program
October 1, 2024
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10/1/2024 Air District offers $90 million in grants to reduce toxic air pollution from heavy-duty diesel engines
October 1, 2024
San Mateo County lies in the middle of the San Francisco Peninsula, south of San Francisco County, and north of Santa Clara and Santa Cruz counties. It is bounded by the Pacific Ocean to the west and San Francisco Bay to the east. Two San Mateo County representatives sit on the Air District’s Board of Directors.
Climate
Cool, foggy weather is prevalent along the western coast of the peninsula, particularly during the summer. Summertime average daily temperatures are moderate along the west coast and warm in the county’s east side. In the winter, average daily temperatures across the county range from mild to moderate. Winds are mild, with the highest wind speeds focused along the western coast. Rainfall averages about 20 to 25 inches per year at lower elevations and up to 36 inches in the Santa Cruz Mountains.
Interactive Air Monitoring Stations Map
Air Quality in San Mateo County
Ozone and fine particle pollution, or PM2.5, are the major regional air pollutants of concern in the San Francisco Bay Area. Ozone is primarily a problem in the summer, and fine particle pollution in the winter.
In San Mateo County, ozone almost never exceeds health standards, and PM2.5 exceeds the national standard only on about one day each year. San Mateo County frequently receives fresh marine air from the Pacific Ocean, which passes over the coastal hills. In winter, PM2.5 may be transported into San Mateo County from other parts of the Bay Area, adding to wood smoke, which may lead to elevated concentrations, but these are rarely high enough to exceed health standards.
Spare the Air Status
Last Updated: 4/21/2017