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Learn about the Air District’s mobile air monitoring van for community air quality investigations. 

Learn about the Air District's Complaint Policy and Procedures, and how we investigate air pollution concerns to ensure compliance with air quality rules and regulations.

The Air District is issuing an air quality advisory through Monday due to wildfires that began overnight throughout the greater Bay Area. Numerous lightning strikes have sparked wildfires across the region. Air quality may deteriorate in areas near or downwind of the fires, but PM2.5 is not expected to exceed the national 24-hour standard.

The Air District is extending an air quality advisory for wildfire smoke through Monday, September 6. Smoke from wildfires in Northern California is expected to continue to cause hazy and smoky skies across the Bay Area through Monday. Air quality is expected to generally be in the moderate range on the Air Quality Index. Higher concentrations of smoke may intermittently mix to the surface at times, but pollution levels are not expected to exceed federal health standards and no Spare the Air is in effect. 

Air quality is an important consideration for schools when planning student activities, especially when the region is being impacted by wildfire smoke. Read the Air District's new School Air Quality Activity Recommendations for guidance and further information. See also the Air District's Wildfire Preparedness Tips brochure.

The Air District is announcing the launch of a web tool that provides searchable information for all the notices of violation, or NOVs, that the agency has issued within the past five years. This new web tool allows the public to access enforcement information concerning NOVs issued to facilities across the Bay Area.

The Air District has fined Chemtrade $1,150,000 for air quality violations at Chemtrade’s sulfuric acid manufacturing plant in Richmond. The penalty resolves seven notices of violation issued to Chemtrade for violations that occurred at its Richmond facility.

The Air District is lifting an air quality advisory for wildfire smoke that was originally scheduled to last through tomorrow, Wednesday, August 27.

The Air District’s review of Permit Application 25608 (Marine Terminal Permit Revision) is on hold pending the County’s CEQA review of the Phillips 66 Rodeo Renewed Project.

The Air District is announcing that its independent Hearing Board has ordered Martin Marietta to get a permit for the company’s sand distribution plant located at Pier 92 in Bayview Hunters Point, San Francisco. The Hearing Board has also imposed restrictions on the plant’s operations to reduce emissions and protect public health.

The Air District is issuing an air quality advisory for wildfire smoke for tomorrow, Thursday, August 5, and Friday, August 6. Smoke from the McFarland, Monument, and River Complex fires are expected to impact the North Bay and East Bay, but the smoke is aloft and is not expected to cause unhealthy air quality. 

The Air District is issuing an air quality advisory for wildfire smoke for Friday and Saturday, August 27 and 28. Smoke from wildfires across California is predicted to impact the Bay Area on Friday and Saturday. Lofted smoke is expected to cause hazy and smoky skies, but pollution levels are not expected to exceed federal health standards and no Spare the Air Alert is in effect. Air quality is expected to be in the moderate range on the Air Quality Index. 

The Air District is issuing an air quality advisory for wildfire smoke for Thursday, September 2, and Friday, September 3. Smoke from wildfires in northern California is predicted to cause hazy and smoky skies across the Bay Area on Thursday and Friday. Pollution levels are not expected to exceed federal health standards and no Spare the Air Alert is in effect. However, smoke may mix to the surface at times causing intermittent and isolated pockets of elevated pollution levels. Air quality is expected to be in the good to moderate range on the Air Quality Index.

The Air District is issuing an air quality advisory for wildfire smoke for Friday, September 24 and Saturday, September 25. Smoke from fires in Southern and Central California is expected to impact the Bay Area through Saturday, producing smoky and hazy skies. Pollution levels are not expected to exceed federal health standards and no Spare the Air Alert is in effect. 

The Air District is issuing an air quality advisory for wildfire smoke for today, Tuesday, May 31, and tomorrow, Wednesday, June 1. Smoke from the Old Fire in Napa County is expected to impact the Napa Valley. Isolated pockets of elevated air pollution levels are possible near the fire; however, pollution levels are not expected to exceed the national 24-hour standard. A Spare the Air Alert is not in effect and air quality is not expected to be unhealthy. Smoky, hazy skies may be visible and the smell of smoke may be present in the North Bay through Wednesday. 

The Air District is extending an air quality advisory due to smoke from the fire at Schnitzer Steel in West Oakland. Smoke from the fire is expected to continue to impact parts of Alameda and Contra Costa Counties.

The Air District is launching a new subscription service that will provide Bay Area residents with timely information about significant events affecting regional and local air quality.

Jun 13, 2019 ... 6/13/2019 Air Quality Monitoring Modes Mode: Mobile Making measurements while in motion Fe at ur es : • Quickly screen for air pollutants over a broad spatial area • Multiple passes can reveal ...

What’s Your Air Quality IQ?

六月 29, 2026 ... 學校空氣品質活動建議 在空氣品質不佳時保護學生健康 空氣品質是學校規劃學生活動時的重要考量。灣區空氣 局可協助學校瞭解當地空氣品質及應採取之保護學生健 康措施。 如需瞭解更多資訊，請造訪BAAQMD.gov 或致電415-749-4900。 下列學校活動建議是與健康研究人員討論後，依據近期研究的數項重要原則所擬定。 空氣品質等級 活動 第1級 第2級 第3級 第4級 第5級 AQI 0-50 ...