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View archived notices of proposed Bay Area permit projects and public comment periods for these projects.

View the BACT / TBACT Workbook, a resource for guiding permit applicants and Air District staff through the New Source Review permitting process.

Learn about Synthetic Minor Operating Permit eligibility and requirements, and view a list of Bay Area Synthetic Minor Facilities.

Find out how the Air District uses modeling to understand pollutant behavior, estimate exposure levels, help with regional planning, support permit applications, and more.

View editions of the Air District's Air Currents newsletter, which covers Air District activities as well as other air quality issues of interest to industry, government agencies, and the general public.

The Air District has launched a new online civic engagement tool, Open Air Forum, which offers the public a new opportunity to interact with the Air District and provide feedback on specific Air District topics.

The Air District's Board of Directors adopted a bold air quality and climate plan, the 2017 Clean Air Plan, entitled Spare the Air - Cool the Climate (YouTube streaming video), which addresses air quality improvement and greenhouse gas reduction for the nine-county Bay Area region.

The Air District announced today that Air Liquide Large Industries, US LP, has agreed to pay $159,000 to settle violations that occurred at its hydrogen plant at the San Francisco Oil Refinery in Rodeo.

The Air District has lifted the Spare the Air Alert that was in place through Tuesday and is instead issuing an air quality advisory through Tuesday, October 13, due to possible localized smoke impacts near the Glass Fire.

The Hearing Board is an independent quasi-judicial body created by California State law with the sole authority to provide temporary relief from Bay Area Air Quality Management District rules, regulations, and permit conditions, under certain circumstances.

Learn all about air quality in the Bay Area, including air quality and weather forecasts, open burn and spare the air status, wood smoke pollution, and more.

Localized air quality impacts may occur as Marathon Refinery in Martinez idles operations.

Smoke from wildfires throughout the Bay Area is impacting air quality.  

The Clean Air Center Program provides funding for county agencies in the San Francisco Bay Area to create a network of clean air centers to mitigate the adverse public health impacts due to wildfires and other smoke events.

Frequently Asked Questions - Air Quality

View current and historical air quality data based on measurements taken from the Air District's air monitoring network.

Get the latest information and findings from the Air District's emissions inventory of criteria air pollutants.

Learn about the Spare the Air Program and how the season affects air quality, and find out whether a Spare the Air Alert is in effect.

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