索諾瑪縣 (Sonoma County)

Air District extends air quality advisory for wildfire smoke through Monday
六月 23, 2025

The Air District is extending an air quality advisory due to wildfire smoke from Canada and Alaska in the Bay Area through Monday, June 23. Smoke from various wildfires in western Canada and in Alaska is expected to continue to impact air quality in the Bay Area on Monday. 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, the smell of smoke is possible and air quality may become unhealthy on Monday.

Learn More
Air District issues air quality advisory for wildfire smoke for Sunday
六月 22, 2025

The Air District is issuing an air quality advisory due to wildfire smoke from Canada and Alaska in the Bay Area for Sunday, June 22. Smoke from various wildfires in western Canada and in Alaska is expected to impact air quality in parts of the Bay Area on Sunday. 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, the smell of smoke is possible and air quality may become unhealthy on Sunday.

Learn More
Air District issues air quality advisory for smoke from Somersville brush fire for Wednesday evening
六月 18, 2025

The Air District is issuing an air quality advisory due to smoke from the Somersville brush fire in Antioch. Smoke from this brush fire is expected to impact air quality in eastern Contra Costa County on Wednesday evening. 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. The Air District will continue to monitor conditions to see if impacts will continue on Thursday. Smoky, hazy skies may be visible, the smell of smoke is possible and air quality may become unhealthy as of Wednesday evening.

Learn More
六月 12, 2025

Air District increases Vehicle Buy Back Program incentive and expands eligibility effective July 1
六月 10, 2025

Air District and Chevron reach settlement with enhanced requirements for air monitoring and transparency
六月 04, 2025

Air District allocates $1.3 million to improve air quality in West Contra Costa County schools
六月 04, 2025

Air District extends air quality advisory for wildfire smoke through Thursday
六月 03, 2025

Air District extends air quality advisory for wildfire smoke through Wednesday

氣候

索諾瑪縣 (Sonoma County) 的氣候很大程度上受到佩塔盧馬 (Petaluma)、科塔蒂 (Cotati) 和索諾瑪峽谷 (Sonoma valleys) 地形的影響。佩塔盧馬和科塔蒂峽谷裡的氣溫接近，而索諾瑪峽谷相對較為溫暖，與納帕谷接近。夏季，夜間溫度適中，白天炎熱；冬季，夜間涼爽，白天氣溫適中。佩塔盧馬和科塔蒂峽谷的風向規律受到佩塔盧馬峽口的強烈影響，聖羅莎和佩塔盧馬以無風到輕風為主。夏季傍晚時分，佩塔盧馬和科塔蒂峽谷常常起霧，並一直持續到次日午間之前。索諾瑪峡谷的陽光充沛。佩塔盧馬的年降水量為 24 英寸，索諾瑪 29 英寸，聖羅莎 30 英寸。

索諾瑪縣的空氣品質

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。

雖然索諾瑪縣內的大部分地方在夏季會變得十分炎熱，但空氣監測結果顯示，這一地區的臭氧水平在整個灣區是最低的。夏季除了最熱的幾天以外，新鮮的海風會從西面山脈之間的峽口吹向內陸。

節假期間，尤其是因為木材焚燒等，PM2.5 水平會上升，但空氣監測結果再次顯示，該地區的 PM2.5 水平在整個灣區最低。

索諾瑪縣 (Sonoma County)

關於空氣局

氣候

索諾瑪縣的空氣品質

郡縣資源團隊

Sunday

Monday

Languages:

關於空氣局

索諾瑪縣 (Sonoma County)

關於空氣局

氣候

索諾瑪縣的空氣品質

郡縣資源團隊

Sunday

Monday