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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”).

Mùa cháy rừng ở California thường diễn ra giữa mùa xuân và cuối mùa thu. Địa Hạt Không Khí giám sát chất lượng không khí chung tại khu vực Vùng Vịnh và sẽ thông báo cho người dân nếu khói cháy rừng có nguy cơ gây ra mức độ ô nhiễm hạt tăng lên trong khu vực. 

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 ...

Thg1 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 ...

Thg1 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 ...

Thg9 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 ...

Thg10 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 DRAFT – DO NOT CITE OR QUOTE – DRAFT October 20, 2009 REGULATION 2 PERMITS RULE 5 NEW SOURCE REVIEW OF TOXIC AIR CONTAMINANTS INDEX 2-5-100 GENERAL 2-5-101 Description 2-5-110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 ...

Thg10 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 DRAFT – DO NOT CITE OR QUOTE – DRAFT October 20, 2009 REGULATION 2 PERMITS RULE 5 NEW SOURCE REVIEW OF TOXIC AIR CONTAMINANTS INDEX 2-5-100 GENERAL 2-5-101 Description 2-5-110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 ...

Feb 23, 2015 ... WORKSHOP REPORT PROPOSED AIR DISTRICT REGULATIONS 12, RULE 15: PETROLEUM REFINING EMISSIONS TRACKING AND REGULATION 12, RULE 16: PETROLEUM REFINING EMISSIONS ANALYSIS, ...

Thg11 30, 2009 ... RULE DEVELOPMENT STAFF REPORT DECEMBER 2009 Proposed Amendments to: Regulation 2: Permits, Rule 5: New Source Review of Toxic Air Contaminants Carol Allen, ...