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The Air District is issuing an air quality advisory for wildfire smoke for Wednesday, September 22. Smoke from fires across Southern California is expected to continue to impact the Bay Area, with smoky and hazy skies. Pollution levels are not expected to exceed federal health standards and no Spare the Air Alert is in effect for Wednesday. A Spare the Air Alert remains in effect for today, September 21. 

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.

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.

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 extending the current air quality advisory for wildfire smoke through Monday, September 27. An air quality advisory is currently in place for Saturday, September 25. Smoke from fires in Southern and Central California is expected to continue to impact the Bay Area through Monday with 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 Monday, October 4. Smoke from wildfires in Southern California is expected to continue impacting the Bay Area on Monday with smoky and hazy skies. Pollution levels are not expected to exceed federal health standards and no Spare the Air Alert is in effect for Monday. A Spare the Air Alert for ozone, or smog, remains in effect for Sunday, October 3.

The Air District is extending an air quality advisory for wildfire smoke through tomorrow, Saturday, September 10. Smoke from wildfires in California and Oregon is expected to continue to impact the Bay Area through Saturday, but pollutant levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect. Smoky, hazy skies may be visible and the smell of smoke may be present. 

The Air District is issuing an air quality advisory for wildfire smoke for tomorrow, Friday, September 9. Smoke from wildfires in California and Oregon is expected to impact the Bay Area through Friday, but pollutant levels are not expected to exceed the national 24-hour health standard. A Spare the Air Alert is not in effect on Friday. Smoky, hazy skies may be visible and the smell of smoke may be present. 

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. 

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. 

The Air District is extending the air quality advisory through Saturday, September 26, due to possible wildfire smoke impacts in parts of the East Bay. There is no Spare the Air Alert in effect and air quality is not expected to be unhealthy.

The Air District is extending an air quality advisory for wildfire smoke through Thursday, September 16. Wildfires across Northern California continue to produce smoke, which is being transported towards the Bay Area. As a result, hazy and smoky conditions are predicted through Thursday. Smoke is forecast to stay mostly aloft, and air quality is expected to be in the moderate AQI category. Pollution levels are not expected to exceed federal health standards and no Spare the Air Alert is in effect. 

The Air District is issuing a smoke advisory today due to multiple fires that developed overnight in the North Bay. Heavy smoke from these wildfires in the North Bay counties is causing very unhealthy air quality throughout the region and the smoke is moving into other parts of the Bay Area due to winds.

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.

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.

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.

Thg9 6, 2012 ... BAY AREA AIR POLLUTION SUMMARY – 2011 MONITORING CARBON NITROGEN SULFUR OZONE PM PM 10 2.5 STATIONS MONOXIDE DIOXIDE DIOXIDE Max Cal Max Nat Cal 3-Yr Max Max Nat/Cal Max Ann Nat/Cal Max Max Nat/Cal ...

Thg8 6, 2003 ... —See NOTES on back of BAY AREA AIR POLLUTION SUMMARY — 2002 this page CARBON NITROGEN SULFUR MONITORING OZONE PM PM 10 2.5 MONOXIDE DIOXIDE DIOXIDE STATIONS Ann Max Nat Cal Max Nat 3-Yr Max Max ...

Thg6 27, 2002 ... SUMMARY OF AIR POLLUTION IN THE BAY AREA - 1993 CARBON NITROGEN SULFUR OZONE PM10 MONOXIDE DIOXIDE DIOXIDE MONITORING STATIONS MAX FED CAL 3-YR MAX FED MAX CAL MAX CAL ANN GEO FED CAL HR ...

Thg9 19, 2002 ... —See notes of explanation BAY AREA AIR POLLUTION SUMMARY — 2001 on back of this page CARBON NITROGEN MONITORING OZONE SULFUR PM 10 MONOXIDE DIOXIDE DIOXIDE STATIONS Ann Max Nat Cal Max Nat 3-Yr Max ...