Ambient Air Monitoring Network

Learn about the Air District's ambient air monitoring network and special air quality studies.

The Air District maintains one of the most comprehensive air quality monitoring networks in the country, consisting of over 30 stations distributed among the nine Bay Area counties.

This network measures concentrations of pollutants for which health-based ambient air quality standards have been set by the U.S. Environmental Protection Agency and the California Air Resources Board. The network also measures concentrations of various pollutants designated as Toxic Air Contaminants by the state of California.

This information is used to determine compliance with state and federal air quality standards, prepare air quality forecasts, develop air quality plans, provide information for permit modeling, prepare environmental impact reports, and track air quality trends.

Pollutants measured by the monitoring network include:

  • Ground-level ozone
  • Carbon monoxide
  • Nitrogen oxides
  • Sulfur dioxide/oxides
  • Particulate matter
  • Hydrogen sulfide

周邊空氣監測網

空氣局運行由 30 多個監測站組成的周邊空氣監測網,並負責其維修、維護和品質控制。監測網收集當地空氣品質數據,並將數據用於許多用途,包括:

  • 確定遵守州及聯邦空氣品質標準。
  • 空氣品質預測。
  • 清淨空氣計劃模擬。
  • 預防重大惡化許可模擬。
  • 環境影響報告。
  • 提供有關地區和當地空氣品質及空氣品質趨勢的資訊。

取樣項目,如 PM2.5 形成取樣及具體社區內的短期研究等,為空氣品質計劃的形成,更新法規及進一步瞭解灣區的空氣品質提供數據。

監測網測量的污染物包括:

  • 地表臭氧
  • 一氧化碳
  • 二氧化氮
  • 二氧化硫/硫氧化物
  • 顆粒物
  • 硫化氫

2014 年空氣監測網計劃

灣區空氣品質管理局將在 2015 年 7 月發佈最新的周邊空氣監測網報告。報告描述該局 2014 年的空氣監測網,以及監測網的目標,並列出未來 18 個月內對監測網擬做的變更。有關擬議變更的資訊,可查看「2015-2016 年擬議網絡修改」一節。該小節說明了監測網的目標以及計劃在 2015 年 6 月 30 日之前實施的擬議變更。

下一期年度周邊空氣監測網報告計劃於 2016 年 7 月發佈。

2014 年網絡計劃

空氣局公開徵集對於其空氣監測網擬議變更的意見。公開評論期到 2015 年 6 月 30 日截止。

2017 Air Monitoring Network Plan

The Air District released its latest Ambient Air Monitoring Network Report in July 2018. The report described the Air District’s air monitoring network for 2017. It also presented the objectives of the monitoring network and listed proposed changes to the network planned to occur before June 30, 2019. The proposed changes may be found in the section titled Proposed Modifications to Network in 2018-2019. The Air District solicited comments from the public on these proposed changes to the air monitoring network. The public comment period ended in June of 2018.

2016 Air Monitoring Network Plan

The Air District released the 2015 Ambient Air Monitoring Network Report in July 2016. The report described the District’s air monitoring network for 2016. It also presented the objectives of the monitoring network and listed proposed changes to the network planned to occur before June 30, 2018. The proposed changes may be found in the section titled Proposed Modifications to Network in 2017-2018. The Air District solicited comments from the public on these proposed changes to the air monitoring network. The public comment period ended in June of 2017.

Sulfur Dioxide Data Requirements Rule Compliance Information

On March 18, 2016, the U.S. Environmental Protection Agency sent a letter to the California Air Resources Board, informing the state that they considered three sources in Martinez, California, to be aggregated with respect to triggering compliance with the sulfur dioxide Data Requirements Rule ambient air characterization requirements. These sources are the Shell and Tesoro refineries and the Eco Services sulfur recovery plant. 

The Air District prepared an analysis outlining the proposed compliance with the sulfur dioxide Data Requirements Rule through ambient air monitoring. The Air District solicited comments from the public on this analysis from September 29 through October 31, 2016, and submitted it to the EPA. The EPA approved this approach on December 6, 2016. This information will be included in future Ambient Air Monitoring Network Reports.

2015 Air Monitoring Network Plan

The Air District released its latest  Ambient Air Monitoring Network Report in July 2016. The report describes the District’s air monitoring network for 2015. It also describes the objectives of the monitoring network and lists proposed changes to the network planned to occur before June 30, 2017. The proposed changes may be found in the section titled Proposed Modifications to Network in 2016-2017. The District solicited comments from the public on these proposed changes to the air monitoring network. The public comment period ended June 25, 2016.

2014 Air Monitoring Network Plan

The Air District released the 2014 Ambient Air Monitoring Network Plan in 2015. The report described the District’s air monitoring network for 2014,  the objectives of the monitoring network, and proposed changes to the network. The proposed changes may be found in the section titled Proposed Modifications to Network in 2015-2016. It describes the objectives of the monitoring network and proposed changes planned to occur before June 30, 2015. The District solicited comments from the public on proposed changes to the air monitoring network. The public comment period ended June 30, 2015.



一般資訊

415 749-4900


空氣監測

415 749-4985

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Last Updated: 5/31/2019