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  • Air District extends air quality advisory through Sunday
    Air District extends air quality advisory through Sunday

    The Air District is extending an air quality advisory due to wildfire smoke from wildfires in the western U.S. and Canada through Sunday, August 11. Local pollution and residual smoke from fires in the western U.S. and Canada continues to impact air quality in the Bay Area, causing hazy and smoky skies. Air quality is expected to be Good to Moderate on the Air Quality Index.

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    The Air District is extending an air quality advisory due to wildfire smoke from wildfires in the western U.S. and Canada through Sunday, August 11. Local pollution and residual smoke from fires in the western U.S. and Canada continues to impact air quality in the Bay Area, causing hazy and smoky skies. Air quality is expected to be Good to Moderate on the Air Quality Index.

  • Air District issues air quality advisory for Wednesday
    Air District issues air quality advisory for Wednesday

    The Air District is issuing an air quality advisory due to wildfire smoke from the Pedro Fire, east of Modesto, for Wednesday, July 31. Smoke from the Pedro Fire is expected to impact air quality throughout the Bay Area on Wednesday. Hazy skies may be visible and the smell of smoke is possible at high elevations. Air quality is expected to be in the Moderate category on the Air Quality Index.

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    The Air District is issuing an air quality advisory due to wildfire smoke from the Pedro Fire, east of Modesto, for Wednesday, July 31. Smoke from the Pedro Fire is expected to impact air quality throughout the Bay Area on Wednesday. Hazy skies may be visible and the smell of smoke is possible at high elevations. Air quality is expected to be in the Moderate category on the Air Quality Index.

  • Air District extends air quality advisory through Saturday
    Air District extends air quality advisory through Saturday

    The Air District is extending an air quality advisory due to wildfire smoke from wildfires in the western U.S. and Canada through Saturday, August 10. An inversion layer combined with local pollution and residual smoke from fires in the western U.S. and Canada continues to impact air quality in the Bay Area, causing hazy and smoky skies. Air quality is expected to be Good to Moderate on the Air Quality Index.

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    The Air District is extending an air quality advisory due to wildfire smoke from wildfires in the western U.S. and Canada through Saturday, August 10. An inversion layer combined with local pollution and residual smoke from fires in the western U.S. and Canada continues to impact air quality in the Bay Area, causing hazy and smoky skies. Air quality is expected to be Good to Moderate on the Air Quality Index.

  • Air District issues air quality advisory for Monday
    Air District issues air quality advisory for Monday

    The Air District is issuing an air quality advisory for wildfire smoke for Monday, August 23. Smoke from wildfires in Northern California is predicted to impact the Bay Area on Monday. 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 good to moderate range on the Air Quality Index. 

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    The Air District is issuing an air quality advisory for wildfire smoke for Monday, August 23. Smoke from wildfires in Northern California is predicted to impact the Bay Area on Monday. 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 good to moderate range on the Air Quality Index. 

  • Air District extends air quality advisory through Tuesday
    Air District extends air quality advisory through Tuesday

    The Air District is extending an air quality advisory for wildfire smoke through Tuesday, August 24. Smoke from wildfires across California is predicted to continue to impact the Bay Area on Tuesday. 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 good to moderate range on the Air Quality Index. 

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    The Air District is extending an air quality advisory for wildfire smoke through Tuesday, August 24. Smoke from wildfires across California is predicted to continue to impact the Bay Area on Tuesday. 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 good to moderate range on the Air Quality Index. 

  • Air District extends air quality advisory through Thursday
    Air District extends air quality advisory through Thursday

    The Air District is extending an air quality advisory due to wildfire smoke from the Pedro Fire and other wildfires through Thursday, August 1. Smoke from the Pedro Fire and other California wildfires is expected to continue to impact air quality throughout the Bay Area tomorrow. Hazy skies may be visible and the smell of smoke is possible at high elevations. Air quality is expected to be in the Moderate category on the Air Quality Index.

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    The Air District is extending an air quality advisory due to wildfire smoke from the Pedro Fire and other wildfires through Thursday, August 1. Smoke from the Pedro Fire and other California wildfires is expected to continue to impact air quality throughout the Bay Area tomorrow. Hazy skies may be visible and the smell of smoke is possible at high elevations. Air quality is expected to be in the Moderate category on the Air Quality Index.

  • Air Quality Advisory
    Air Quality Advisory

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

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

  • Air Quality Advisory
    Air Quality Advisory

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

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

  • Air Quality FAQs
    Air Quality FAQs

    Frequently Asked Questions - Air Quality

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    Frequently Asked Questions - Air Quality

  • Air Quality Data
    Air Quality Data

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

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

  • Air Quality Measurement
    Air Quality Measurement

    Learn about the Air District's air monitoring network and activities, including laboratory support, data quality assurance, and pollutant source testing.

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    Learn about the Air District's air monitoring network and activities, including laboratory support, data quality assurance, and pollutant source testing.

  • Air Quality Widgets
    Air Quality Widgets

    Learn about the Air District's free air quality widgets and add them to your website.

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    Learn about the Air District's free air quality widgets and add them to your website.

  • Air Quality Forecasts
    Air Quality Forecasts

    Get daily forecasts of air quality and weather factors that affect air pollution potential in the Bay Area.

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    Get daily forecasts of air quality and weather factors that affect air pollution potential in the Bay Area.

  • About Air Quality
    About Air Quality

    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.

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    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.

  • Current Air Quality
    Current Air Quality

    Get air quality and weather information for the Bay Area.

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    Get air quality and weather information for the Bay Area.

  • Air Quality Plans
    Air Quality Plans

    Learn about the Air District's process, methods, and goals for developing air quality management plans for the Bay Area.

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    Learn about the Air District's process, methods, and goals for developing air quality management plans for the Bay Area.

  • Air District extends air quality advisory through Wednesday
    Air District extends air quality advisory through Wednesday

    The Air District is extending an air quality advisory for wildfire smoke through Wednesday, August 23. Smoke from numerous fires in Northern California is expected to impact air quality throughout the Bay Area on Tuesday and Wednesday, causing air quality to reach moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

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    The Air District is extending an air quality advisory for wildfire smoke through Wednesday, August 23. Smoke from numerous fires in Northern California is expected to impact air quality throughout the Bay Area on Tuesday and Wednesday, causing air quality to reach moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

  • Air District issues air quality advisory through Wednesday
    Air District issues air quality advisory through Wednesday

    The Air District is issuing an air quality advisory for wildfire smoke through Wednesday, September 20. Smoke from fires in Northern California and Oregon is expected to impact air quality throughout the Bay Area area, causing air quality to reach high-moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

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    The Air District is issuing an air quality advisory for wildfire smoke through Wednesday, September 20. Smoke from fires in Northern California and Oregon is expected to impact air quality throughout the Bay Area area, causing air quality to reach high-moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

  • Air District extends air quality advisory through Tuesday
    Air District extends air quality advisory through Tuesday

    The Air District is extending an air quality advisory for wildfire smoke through Tuesday, August 29. Smoke from numerous fires in Northern California and Oregon is expected to impact air quality throughout the Bay Area, causing air quality to reach low-moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

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    The Air District is extending an air quality advisory for wildfire smoke through Tuesday, August 29. Smoke from numerous fires in Northern California and Oregon is expected to impact air quality throughout the Bay Area, causing air quality to reach low-moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

  • Air District extends air quality advisory through Monday
    Air District extends air quality advisory through Monday

    The Air District is extending an air quality advisory for wildfire smoke through Monday, August 28. Smoke from numerous fires in Northern California and Oregon is expected to impact air quality throughout the Bay Area, causing air quality to reach low-moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

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    The Air District is extending an air quality advisory for wildfire smoke through Monday, August 28. Smoke from numerous fires in Northern California and Oregon is expected to impact air quality throughout the Bay Area, causing air quality to reach low-moderate on the U.S. EPA’s Air Quality Index. Smoky, hazy skies may be visible and the smell of smoke is possible. Pollutant levels are NOT expected to exceed the national 24-hour health standard and there is no Spare the Air Alert in effect.

Spare the Air Status