The Air District is issuing an air quality advisory due to wildfire smoke from the Pickett Fire for today, August 21, and tomorrow, August 22. Smoke from the Pickett Fire in Napa County is expected to impact Sonoma, Napa, and Solano counties on Thursday and Friday. Conditions can change rapidly and the amount and location of smoke at ground level is hard to predict. The public can check for real-time smoke pollution levels in their local area with the U.S. EPA’s Fire and Smoke Map. Smoky, hazy skies may be visible, and the smell of smoke is possible.
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Advisory
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Permit Public Comment Extension
The public comment period for Permit Application #704470 (CA-002 Somo Village) has been extended and will now end on October 3, 2025. Please visit our Public Notices page for more information.
Advisory
Permit Public Comment Extension
The public comment period for Permit Application #704470 (CA-002 Somo Village) has been extended and will now end on October 3, 2025. Please visit our Public Notices page for more information.
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Advisory
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Air Quality Advisory
Smoke from the Pickett Fire is expected to impact air quality in Sonoma, Napa and Solano counties on Thursday and Friday. Residents in affected areas should stay alert to news coverage and health warnings related to smoke. Check air quality at fire.airnow.gov and take steps to protect your health from smoke. Learn how at www.baaqmd.gov/wildfiresafety. Pollution levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect.
Advisory
Air Quality Advisory
Smoke from the Pickett Fire is expected to impact air quality in Sonoma, Napa and Solano counties on Thursday and Friday. Residents in affected areas should stay alert to news coverage and health warnings related to smoke. Check air quality at fire.airnow.gov and take steps to protect your health from smoke. Learn how at www.baaqmd.gov/wildfiresafety. Pollution levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect.
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阿拉米達縣 (Alameda County)
瞭解阿拉米達縣，包括它的氣候、潛在空氣污染問題及目前的空氣品質。您還可以查看阿拉米達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 has reached a settlement with Tesoro Refining & Marketing Company that will significantly enhance air monitoring data transparency, providing more information about air pollutants around its refinery in unincorporated Contra Costa County, near Martinez. The agreement requires Tesoro to take new data access and community engagement actions beyond those required by regulation or permit.
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Air District directs Crown Hill Materials to cease operating unpermitted concrete batch plant八月 18, 2025
The Air District has issued Crown Hill Materials, a concrete facility in Vallejo, a Notice of Violation for operating a concrete batch plant without the required air quality permit. The Air District has also issued a cease-and-desist letter directing the company to stop operating the unpermitted plant.
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Upcoming Events
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九月032025
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Other News Articles
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2025/7/23 Air District urges Bay Area to proactively prepare for smoke this wildfire season
七月 23, 2025
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2025/7/17 Air District and Alameda County District Attorney announce enforcement actions against Radius Recycling, formerly Schnitzer Steel
七月 17, 2025
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2025/7/14 Air District lifts air quality advisory for wildfire smoke for Monday
七月 14, 2025
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2025/7/12 Air District extends air quality advisory for wildfire smoke through Monday
七月 12, 2025
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2025/7/11 Air District extends air quality advisory for wildfire smoke through Saturday
七月 11, 2025
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2025/7/10 Air District issues air quality advisory for wildfire smoke for Thursday and Friday
七月 10, 2025
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2025/7/2 Air District urges residents to skip the sparklers this Fourth of July
七月 2, 2025
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2025/6/23 Air District extends air quality advisory for wildfire smoke through Monday
六月 23, 2025
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2025/6/22 Air District issues air quality advisory for wildfire smoke for Sunday
六月 22, 2025
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2025/6/18 Air District issues air quality advisory for smoke from Somersville brush fire for Wednesday evening
六月 18, 2025
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2025/6/12 Air District increases Vehicle Buy Back Program incentive and expands eligibility effective July 1
六月 12, 2025
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2025/6/10 Air District and Chevron reach settlement with enhanced requirements for air monitoring and transparency
六月 10, 2025
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2025/6/4 Air District allocates $1.3 million to improve air quality in West Contra Costa County schools
六月 4, 2025
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2025/6/4 Air District extends air quality advisory for wildfire smoke through Thursday
六月 4, 2025
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2025/6/3 Air District extends air quality advisory for wildfire smoke through Wednesday
六月 3, 2025
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2025/6/2 Air District issues air quality advisory for wildfire smoke for Monday and Tuesday
六月 2, 2025
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2025/5/31 Air District issues air quality advisory due to flaring at Chevron Refinery
五月 31, 2025
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2025/5/29 Air District issues Spare the Air Alert for Friday
五月 29, 2025
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2025/5/21 Air District Releases Draft Ambient Air Monitoring Network Plan
五月 21, 2025
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2025/5/14 Air District opens funding opportunity for zero-emission transport refrigeration units
五月 14, 2025
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2025/5/6 Air District Issues 3 Notices of Violation to Valero as a result of the May 5 fire
五月 6, 2025
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2025/5/5 Air quality advisory for smoke from fire at Valero
五月 5, 2025
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2025/5/5 Spare the Air smog season begins
五月 5, 2025
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2025/5/1 Air District Issues 18 Notices of Violation to Martinez Refining Company as a result of the February 1 fire
五月 1, 2025
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2025/5/1 Air District Soliciting Applications for Community Advisory Council Seats
五月 1, 2025
氣候
沿著該縣的西部海岸，氣溫受到海灣的調節。天氣寒冷時，海灣能夠充當熱源，天氣溫暖時，海灣則能使空氣降溫。一般而言，距離海岸越遠，陽光越充沛，但夏季多雲天氣較為常見。夏季平均氣溫夜間適中，白天溫和。冬季夜間涼爽，白天氣溫適中。最高氣溫常見於內陸地區。該縣各地的風速不一。西部海岸有最強勁的陣風，主導風常以西風為主，有海灣微風。每年的總降雨量平均在 14 到 23 英寸，該縣北端和奧克蘭伯克利山山頂的降雨總量最高。
阿拉米達縣 (Alameda County) 的氣候還受到區域性灣區氣候的影響。
阿拉米達縣的空氣品質
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。
在阿拉米達縣東灣山西部，臭氧很少超過健康標準，因為該地區毗鄰舊金山灣，氣溫維持在臭氧形成的基本水平以下。 冬季夜間涼爽且伴有輕風，木材煙霧以及從利弗莫爾山谷向東傳送的偶發性空氣污染，使 PM2.5 問題在該地區更為顯著。
阿拉米達縣東部是灣區臭氧水平最高的地區，夏季午後氣溫經常接近三位數，致使臭氧水平超過健康標準。冬季，PM2.5 從中央谷地通過阿爾塔蒙特山口 (Altamont Pass) 向西傳送，加上木材煙霧水平，超過了健康標準。
資源團隊
阿拉米達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