The Community Advisory Council (CAC) of the Air District invites written comments on amendments to the CAC Charter, the document that guides the governance of the Council.
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聖馬特奧縣 (San Mateo County)
瞭解聖馬特奧縣，包括它的氣候、潛在空氣污染問題及目前的空氣品質。您還可以查看聖馬特奧縣即將發生的空氣局事件，閱讀瞭解當地為改善空氣品質所做的努力。
最新新聞
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The Air District is issuing an air quality advisory due to wildfire smoke from the Little Fire near Pleasanton for Tuesday, July 21.
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Air District publishes draft changes to water heater rule that delay implementation and lower costs七月 14, 2026
On July 14, the Air District released draft amended rule language outlining potential exemptions and a delayed start date for the existing zero-NOx residential water heater requirement under Air District Rule 9-6. The Air District is publishing the draft language for public review and comment ahead of the Board of Director’s consideration for adoption this fall.
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Other News Articles
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2026/5/4 Spare the Air smog season begins today
五月 4, 2026
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2026/4/28 Air District fines Valero $3.25 million for air quality violations and requires enhanced air monitoring data transparency
四月 28, 2026
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2026/4/21 Air District advances zero-emission trucking in East Oakland
四月 21, 2026
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2026/4/2 Air District charts a bold path forward with the Bay Area’s first regional climate action plan
四月 2, 2026
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2026/3/30 Air District announces $2.3 million penalty for air quality violations at Anheuser-Busch brewery
三月 30, 2026
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2026/3/29 Air District issues air quality advisory for wildfire smoke through Monday
三月 29, 2026
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2026/3/12 Air District opens applications for People’s Air Grant Program
三月 12, 2026
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2026/2/19 Joint DA-Air District Prosecution Secures $10M From Martinez Refining Company
二月 19, 2026
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2026/2/11 Air District announces Kimberly Leefatt as new civil rights officer
二月 11, 2026
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2026/2/10 Air District fines BoDean $1.28 million for air quality violations
二月 10, 2026
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2026/2/4 Spare the Air Alert issued for Thursday due to elevated pollution levels
二月 4, 2026
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2026/1/29 Air District Board approves new grant program to reinvest penalty funds in impacted communities
一月 29, 2026
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2026/1/20 Air District’s Clean HEET Program now accepting applications
一月 20, 2026
氣候
半島西部海岸以涼爽、多霧的天氣為主，尤其是在夏季。夏季的日平均氣溫，沿西部海岸較為溫和，該縣東面相對溫暖。冬季，全縣的日平均氣溫溫和舒適。微風，最高風速集中在西部海岸。海拔較低處的年均降雨量大約在 20 到 25 英寸之間，聖克魯斯山 (Santa Cruz Mountain) 的年均降雨量最高可達到 36 英寸。
聖馬特奧縣 (San Mateo County) 的氣候還受到區域性灣區氣候的影響。
聖馬特奧縣的空氣品質
臭氧和細顆粒物污染（即 PM2.5）是影響舊金山灣區的主要區域性空氣污染物。臭氧問題主要發生在夏季，細顆粒物污染主要發生在冬季。
在聖馬特奧縣，臭氧幾乎從沒有超過健康標準，PM2.5 通常每年只有一天會超過國家標準。太平洋的新鮮海洋空氣經常飄過海岸邊的丘陵，到達聖馬特奧縣。在冬季，PM2.5 會從灣區的其他地方飄到聖馬特奧縣，加上木材焚燒的煙霧，可能會導致 PM2.5 濃度升高，但很少能超過健康標準。
資源團隊
聖馬特奧縣的愛惜空氣資源團隊在當地社區倡導降低空氣污染的方式。
Spare the Air Status
上次更新： 2016/11/8