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The Air District is issuing an air quality advisory due to smoke from the Crystal Fire in Napa County for today, Wednesday, June 5. Localized smoke impacts are possible near Angwin and may impact the Napa Valley from St. Helena to Calistoga. We will be closely monitoring air quality for smoke impacts from this incident.

The Air District is issuing an air quality advisory for smoke for the entire Bay Area region on Sunday, October 27 through Monday, October 28.

空氣監測數據頁面提供灣區各地空氣品質監測站測得的實時和歷史空氣品質和氣象條件資訊。

瞭解灣區的特殊目的空氣品質監測項目，查看近期項目的資訊。

View the full manual of technical procedures covering all aspects of the Air District's enforcement, regulatory, monitoring, evaluation, and documentation activities.

May 23, 2016 ... METEOROLOGY, MEASUREMENT AND RULES DIVISION 2015 AIR MONITORING NETWORK PLAN July 1, 2016 Charles Knoderer Duc Nguyen Dan Alrick and Katherine Hoag Meteorology, Measurements and ...

Jul 1, 2019 ... METEOROLOGY AND MEASUREMENT DIVISION 2018 AIR MONITORING NETWORK PLAN July 1, 2019 Charles Knoderer Duc Nguyen Jarrett Claiborne Richard Lam Dan Alrick Meteorology and Measurement ...

May 26, 2015 ... 2014 Air Monitoring Network Plan July 1, 2015 Kurt Malone Duc Nguyen and Charles Knoderer Technical Services Division ...

Jun 28, 2018 ... METEOROLOGY AND MEASUREMENT DIVISION 2017 AIR MONITORING NETWORK PLAN July 1, 2018 Charles Knoderer Duc Nguyen and Dan Alrick Meteorology and Measurement Division 375 Beale St., Suite ...

May 30, 2017 ... METEOROLOGY, MEASUREMENT AND RULES DIVISION 2016 AIR MONITORING NETWORK PLAN July 1, 2017 Charles Knoderer Duc Nguyen Dan Alrick and Katherine Hoag Meteorology, Measurements and ...

Jun 29, 2020 ... METEOROLOGY AND MEASUREMENT DIVISION 2019 AIR MONITORING NETWORK PLAN July 1, 2019 Duc Nguyen Jarrett Claiborne Richard Lam Caroline Normal Katherine Hoag Charles Knoderer ...

Aug 17, 2021 ... METEOROLOGY AND MEASUREMENT DIVISION 2020 AIR MONITORING NETWORK PLAN July 1, 2021 Michael Flagg Katherine Hoag Joe Lapka Meteorology and Measurement Division 375 Beale St., Suite ...

Jun 29, 2023 ... 2023 Annual Air Monitoring Network Plan A summary of the ambient air monitoring network in 2022 and proposed network changes through 2024 ...

Apr 29, 2022 ... 2026 Annual Air Monitoring Network Plan A summary of the regulatory air monitoring network in 2025 and proposed network changes through 2027 ...

Apr 24, 2025 ... Air Monitoring Project in East Oakland: Project Plan for Community-Based Monitoring Network Background In general, communities located near emission sources, like industrial facilities, ...

Apr 29, 2022 ... 2026 Annual Air Monitoring Network Plan A summary of the regulatory air monitoring network in 2025 and proposed network changes through 2027 ...

Jun 12, 2015 ... 2024 Annual Air Monitoring Network Plan A summary of the ambient air monitoring network in 2023 and proposed network changes through 2025 ...

Jun 26, 2025 ... 2025 Annual Air Monitoring Network Plan A summary of the ambient air monitoring network in 2024 and proposed network changes through 2026 ...

Oct 10, 2017 ... October 10, 2017 Request for Qualifications #2017-015 Air Sampling Network Maintenance and Operations SECTION I – SUMMARY ...

Sep 11, 2015 ... Air Monitoring Guidelines for Petroleum Refineries AIR DISTRICT REGULATION 12, RULE 15: PETROLEUM REFINING EMISSIONS TRACKING Prepared by the staff of the Bay Area Air ...