The Air District is encouraging residents to prepare for potential smoke impacts this summer to protect their health in the event of widespread unhealthy air quality.
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。
The Air District is encouraging residents to prepare for potential smoke impacts this summer to protect their health in the event of widespread unhealthy air quality.
The Air District and Alameda County District Attorney Ursula Jones Dickson filed a joint civil lawsuit against Radius Recycling, formerly Schnitzer Steel Industries, for air quality violations related to the fire at the company’s facility in West Oakland on August 9-10, 2023. In addition, previous enforcement actions by the Air District and the district attorney required Radius Recycling to install new equipment that has eliminated hundreds of tons of air pollution and reduced cancer risk by 84 percent since 2022; today the Air District finalized the operating permit for this important equipment.
The Air District is lifting an air quality advisory for the Bay Area due to wildfire smoke that was originally scheduled to last through today, Monday, July 14. Over the weekend, smoke from the Butler and Green wildfires had been moving down the Sacramento Valley and impacting air quality in portions of the Bay Area. However, as of Monday morning, the Bay Area is experiencing strong onshore winds, and smoke has remained mostly outside of the region. Air quality has been in the Good Air Quality Index category. Moderate onshore winds are expected to continue into Tuesday, keeping the smoke outside of the Bay Area. As the week progresses, these onshore winds will turn southerly in northern California, and this also is expected to keep the smoke from moving towards our region.
六月 22, 2025
六月 18, 2025
六月 12, 2025
六月 10, 2025
六月 4, 2025
六月 4, 2025
六月 3, 2025
六月 2, 2025
五月 31, 2025
五月 29, 2025
五月 21, 2025
五月 14, 2025
五月 6, 2025
五月 5, 2025
五月 5, 2025
五月 1, 2025
五月 1, 2025
四月 30, 2025
四月 23, 2025
四月 7, 2025
三月 27, 2025
三月 25, 2025
三月 21, 2025
三月 13, 2025
三月 5, 2025
三月 3, 2025
二月 13, 2025
二月 1, 2025
一月 28, 2025
一月 22, 2025
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。
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。
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。
上次更新: 2016/11/8