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Learn more about San Mateo County, its climate, air pollution potential, and local efforts to improve air quality.

The Board of Directors has 5 standing committees that assist the Air District in its mission to improve air quality.

The Air District has settled 17 Notices of Violation with Valero Refining Co. for $345,000 for violations at its Benicia refinery. 

Learn about the Climate Protection Program and its successful initiatives, including the 2050 Greenhouse Gas Reduction Goal and Regional Climate Protection Strategy.

The Air District has settled 14 Notices of Violation with Valero Refining Co. for $191,500 for violations at its Benicia Oil Refinery. 

The Air District is announcing its support for proposed revisions to the National Ambient Air Quality Standards, or NAAQS, for particulate matter pollution.

Learn about the state refinery task force's commitment to the health and safety of refinery workers and local communities, and its latest activities.

The Air District announced that Bio-Rad Laboratories, Inc., has agreed to pay $990,000 to settle air quality violations at its facility in Hercules. 

The Air District announced that Shell Oil Products has agreed to pay $165,000 to settle air quality violations at its petroleum refinery in Martinez. 

The Air District is announcing that Chevron U.S.A. Inc. has agreed to pay $225,500 to settle air quality violations at its refinery in Richmond. 

The Air District has relaunched its Clean Cars for All program with more than $8 million available for qualified residents to purchase a clean air vehicle. 

The Air District is announcing its Clean Air Talk series, featuring Air District Board Chair Davina Hurt, to be held in communities throughout the Bay Area.

The  Air District announced today that Tesoro Refining & Marketing Co. has agreed to pay $915,700 to settle air quality violations at its Golden Eagle Refinery in Martinez. 

Today, the Air District is issuing its fifth Spare the Air Alert for smog this year in addition to the ongoing Air Quality Advisory for wildfire smoke.

Learn about particle pollution, its negative effects on human health and the environment, and what the Air District is doing to reduce levels in the Bay Area.

On September 9, the Air District will be hosting its final webinar in this summer’s Diesel Free by '33 webinar series: Why replacing diesel is a public health priority.

The Air District has settled a case against Chemtrade West US LLC for air pollution violations at its chemical plant in Richmond. Chemtrade will pay $135,000 in civil penalties.    

The Air District has fined the City of Berkeley $130,000 for air quality violations that occurred at its landfill site at Cesar Chavez Park in Berkeley from 2019 - 2022. 

The Air  District’s Community Advisory Council will hold its first meeting January 13 at 6 PM. In a historic moment, the Air District Board of Directors approved the formation of the Air District’s first Community Advisory Council on November 17, 2021. The Community Advisory Council will advise the Air District’s Board of Directors on environmental justice and equity-based policy and is the first body of its kind at the Bay Area Air District.

The Air District has released its latest Ambient Air Monitoring Network Report, which describes the Air District’s air monitoring network for 2020, and lists proposed changes for the near future.