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Frequently Asked Questions - Spare the Air and Wood Smoke

Learn about the public comment process for permit applications and how to effectively comment on permit applications that are currently under review by the Air District.

The U.S. AQI does not include recommendations for PM2.5 levels above 500, but levels are sometimes worse (“beyond index”).

Learn about air quality permitting requirements and apply for a permit.

View information and materials about upcoming and past conferences.

Learn about the Air District's process for amending definitions of Petroleum Refinery, Gasoline, and Liquid Petroleum Gas in several refinery rules of Air District regulations.

The Air District’s Social Media Policy provides social media users who choose to communicate with the Bay Area Air District via its official social media platforms with guidelines for engagement.

Policy Recommendations for Freeway Corridors and Industrial Zones Adjacent to Residential and Sensitive Land Uses

View interactive maps showing air quality forecasts, air quality monitoring data, facilities, and overburdened communities throughout the Bay Area.

The Air District does not discriminate on the basis of race, national origin, ethnic group identification, ancestry, religion, age, sex, sexual orientation, gender identity, gender expression, color, genetic information, medical condition, or mental or physical disability, or any other attribute or belief protected by law.

Learn about the Federal Equivalence Demonstration and read the annual reports.

The Air Monitoring Data page provides both real-time and historical information on air quality and meteorological conditions derived from measurements at air quality monitoring stations around the Bay Area.

Learn about the Air District’s efforts to minimize odors in Milpitas and the surrounding communities.

Learn about the types of vehicles you can purchase or lease to replace your old vehicle under the Clean Cars for All program.

Learn about the cost of emissions credits, interchangeable emissions reduction credits, and how the Air District meets federal equivalency requirements.

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

Learn what you need in order to set up a Clean Air Center.

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 tables containing data from the Air District’s GHG monitoring network relating to concentrations of significant greenhouse gases as well as meteorological conditions.

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