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The Air District is closely monitoring flaring at the Chevron Refinery in Richmond and has issued an air quality advisory as localized smoke impacts are possible near and downwind of the facility, including the Contra Costa County cities of Richmond, San Pablo, Pinole, and Hercules, as well as Solano County. This is based on current meteorological conditions which can change depending on the duration of the flaring. Residents should follow instructions from local health officials.

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.

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 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 ...

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

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 28, 2022 ... 2022 Annual Air Monitoring Network Plan A summary of the ambient air monitoring network in 2021 and proposed network changes through 2023 ...

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 ...

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 ...

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 ...

Jul 1, 2024 ... 2024 Annual Air Monitoring Network Plan A summary of the ambient air monitoring network in 2023 and proposed network changes through 2025 ...

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, ...

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 ...

May 21, 2025 ... 2025 Annual Air Monitoring Network Plan A summary of the ambient air monitoring network in 2024 and proposed network changes through 2026 ...

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 ...

May 10, 2023 ... May 10, 2023 Request for Qualifications# 2023-030 Air Sampling Network Maintenance and Operations SECTION I – SUMMARY ...

Feb 2, 2021 ... February 3, 2021 Request for Qualifications# 2020-001 Air Sampling Network Maintenance and Operations SECTION I – SUMMARY ...