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Air Quality Advisory
Smoke from the Pacific Northwest wildfires is expected to impact air quality in the Bay Area on Tuesday and Wednesday. Residents in affected areas should stay alert to news coverage and health warnings related to smoke. Check air quality at fire.airnow.gov and take steps to protect your health from smoke. Learn how at www.baaqmd.gov/wildfiresafety. Pollution levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect.
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Regulatory Air Monitoring Network
Learn about the Air District's regulatory air monitoring network and special air quality studies.
The Air District maintains a comprehensive air quality monitoring network of 29 stations distributed among the nine Bay Area counties.
Various instruments at these stations measure concentrations of pollutants for which health-based ambient air quality standards have been set by the U.S. Environmental Protection Agency and the California Air Resources Board, known as criteria air pollutants. The network also measures concentrations of various pollutants that increase the understanding of the sources of the criteria air pollutants, as well as pollutants designated as Toxic Air Contaminants by the state of California.
This information is used to determine compliance with state and federal air quality standards, prepare air quality forecasts, develop air quality plans, provide information for permit modeling, prepare environmental impact reports, and track air quality trends.
Pollutants measured by the monitoring network include:
- Ground-level ozone
- Carbon monoxide
- Nitrogen oxides
- Sulfur dioxide/oxides
- Particulate matter
- Hydrogen sulfide
Air Monitoring Network Documents
技術服務
Ambient Air Quality Analysis
AMN Annual Plan Comments
Last Updated: 2026/6/18