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Advisory
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Permit Public Comment Extension
The public comment period for Permit Application #704470 (CA-002 Somo Village) has been extended and will now end on October 3, 2025. Please visit our Public Notices page for more information.
The public comment period for Permit Application #704470 (CA-002 Somo Village) has been extended and will now end on October 3, 2025. Please visit our Public Notices page for more information.
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Research and Data
Learn about and access research and data available from Air District programs and initiatives.
The Air District is responsible for plans, rules, permits, compliance assistance, community engagement, grants and education all aimed at achieving healthy air. On this page, you can link to information about:
- Current air quality standards and how the Bay Area is doing in meeting them.
- Current air quality measurements and data.
- How the Air District forecasts future air quality using its meteorological and monitoring network.
- Emissions from Air District regulated facilities via our emissions inventory.
- Air District modeling and research on pollutant behavior, exposure levels and more.
- Air monitoring projects in selected communities and at selected facilities.
- Interactive data available in map formats.
- Emissions from refinery flares.
- The Air District’s community air risk evaluation program.
Contact Us
Communications
General Information
415.749.4900
Meteorology & Measurements
Air Monitoring
415.749.4985
Last Updated: 8/3/2023