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The U.S. AQI does not include recommendations for PM2.5 levels above 500, but levels are sometimes worse (“beyond index”).

The California wildfire season usually takes place between spring and late fall. The Air District monitors general air quality in the Bay Area and will notify the public if wildfire smoke appears to be causing elevated levels of particulate pollution in the region. 

Mar 31, 2025 ... Wildfire SMOKE Preparedness T I P S • Consider purchasing a non- Protect What to Do During ozone producing air purifier Event Yourself From a (HEPA) to create a cleaner air Smoke room in the ...

Sep 22, 2008 ... Bay Area Air Quality Management District 939 Ellis Street San Francisco, CA 94109 (415) 749-5000 APPROVED MINUTES Advisory Council Regular Meeting 9:00 a.m., Thursday, May 15, 2008 ...

Feb 23, 2015 ... REGULATION 12 MISCELLANEOUS STANDARDS OF PERFORMANCE RULE 16 PETROLEUM REFINING EMISSIONS ANALYSIS, THRESHOLDS AND MITIGATION INDEX 12-16-100 GENERAL 12-16-101 Description 12-16-102 ...

Jan 28, 2015 ... REGULATION 12 MISCELLANEOUS STANDARDS OF PERFORMANCE RULE 16 PETROLEUM REFINING EMISSIONS ANALYSIS, THRESHOLDS AND MITIGATION INDEX 12-16-100 GENERAL 12-16-101 Description 12-16-102 ...

Oct 17, 2008 ... ADVISORY COUNCIL TECHNICAL COMMITTEE REVISED AGENDA TH FLOOR BOARD ROOM WEDNESDAY 7 OCTOBER 22, 2008 1:00 ...

Jan 13, 2014 ... REGULATION 12 MISCELLANEOUS STANDARDS OF PERFORMANCE RULE 15 PETROLEUM REFINING EMISSIONS TRACKING INDEX 12-15-100 GENERAL 12-15-101 Description 12-15-200 DEFINITIONS 12-15-201 Accidental Air ...

Jul 2, 2008 ... ADVISORY COUNCIL REGULAR MEETING WEDNESDAY 2ND FLOOR CONFERENCE ROOM JULY 9, 2008 939 ELLIS STREET 2:00 P.M. SAN FRANCISCO, CA 94109 AGENDA CALL TO ORDER ...

Sep 11, 2015 ... REGULATION 12 MISCELLANEOUS STANDARDS OF PERFORMANCE RULE 16 PETROLEUM REFINING EMISSIONS LIMITS ANALYSIS, THRESHOLDS AND MITIGATION AND RISK THRESHOLDS INDEX 12-16-100 GENERAL 12-16-101 ...

Oct 27, 2009 ... DRAFT – DO NOT CITE OR QUOTE – DRAFT October 20, 2009 REGULATION 2 PERMITS RULE 5 NEW SOURCE REVIEW OF TOXIC AIR CONTAMINANTS INDEX 2-5-100 GENERAL 2-5-101 Description 2-5-110 Exemption, Low ...

Jan 22, 2010 ... REGULATION 2 PERMITS RULE 5 NEW SOURCE REVIEW OF TOXIC AIR CONTAMINANTS INDEX 2-5-100 GENERAL 2-5-101 Description 2-5-110 Exemption, Low Emission Levels 2-5-111 Limited Exemption, Emergency ...

Apr 29, 2024 ... BAAQMD Regulation 11, Rule 18 Implementation Procedures April 2024 H:\Engineering\Rule 11-18\Implementation Plans\Implementation Procedures Document\Rule 11-18 ...

Jun 3, 2014 ... March  2014   1 ...

Jan 13, 2016 ... DRAFT January 2016 REGULATION 2 PERMITS RULE 5 NEW SOURCE REVIEW OF TOXIC AIR CONTAMINANTS INDEX 2-5-100 GENERAL 2-5-101 Description 2-5-110 Exemption, Low Emission Levels 2-5-111 Limited ...

Oct 27, 2009 ... DRAFT – DO NOT CITE OR QUOTE – DRAFT October 20, 2009 REGULATION 2 PERMITS RULE 5 NEW SOURCE REVIEW OF TOXIC AIR CONTAMINANTS INDEX 2-5-100 GENERAL 2-5-101 Description 2-5-110 Exemption, Low ...

Jul 14, 2009 ... DRAFT – DO NOT CITE OR QUOTE – DRAFT 07/14/09 REGULATION 2 PERMITS RULE 5 NEW SOURCE REVIEW OF TOXIC AIR CONTAMINANTS INDEX 2-5-100 GENERAL 2-5-101 Description 2-5-110 Exemption, Low ...

Jan 28, 2016 ... Initial Study/Negative Declaration for the Bay Area Air Quality Management District BAAQMD Regulation 9, Rule 14 (Regulation 9-4): Petroleum Coke Calcining Operations ...

Aug 31, 2023 ... BAAQMD Regulation 11, Rule 18 Implementation Procedures August 2020 H:\Engineering\Rule 11-18\Implementation Plans\Implementation Procedures ...

Aug 31, 2023 ... BAAQMD Regulation 11, Rule 18 Implementation Procedures August 2020 H:\Engineering\Rule 11-18\Implementation Plans\Implementation Procedures ...