Division of Air Quality Monitoring and Quality Assurance

Exceptional Events

DEC requests exceptional event waivers from EPA to exclude wildland fire emissions caused by elevated PM_2.5 concentrations from federal regulatory decision-making processes under 319(b)(3)(B) of the Clean Air Act. EPA defines exceptional events as unusual or naturally occurring events that can affect air quality but are not reasonably controllable using techniques that tribal, state or local air agencies may implement in order to attain and maintain the National Ambient Air Quality Standards.

2022/2023 Exceptional Events Waiver Documents

• 2022/2023 Exceptional Events Waiver - Final
• 2022/2023 Appendix A Table 11 Low Fire Year Summer Mean
• 2022/2023 Appendix B Air Quality Advisories
• 2022/2023 Appendix C 2022 Daily Data
• 2022/2023 Appendix D 2023 Daily Data
• 2022/2023 Appendix E Fuels Fire Behavior Advisories
• 2022/2023 Appendix F AICC Reports

All Exceptional Events

Date	Title and Document Download	Category	Program	Description
1/1/2009	2009 Appendix B, Advisories (PDF 284K)	Report	Fairbanks	PM2.5
1/1/2009	2009 Appendix C, PM2.5 Data (PDF 310K)	Report	Fairbanks	PM2.5
1/1/2009	2009 Appendix D, Meteorological Summary (PDF 314K)	Report	Fairbanks	PM2.5
1/1/2009	2009 Appendix E, Alaska Interagency Coordination Center Situation Reports (PDF 4.8M)	Report	Fairbanks	PM2.5
1/1/2009	2009 Appendix F, Chemical Plots (PDF 2.9M)	Report	Fairbanks	PM2.5
1/1/2009	2009 Waiver Request (PDF 4.6M)	Waiver Request	Fairbanks	PM2.5
1/1/2009	2009 Appendix A, Media Coverage (PDF 4.9M)	Report	Fairbanks	PM2.5
10/30/2009	2009 Waiver Request (PDF 1M)	Waiver Request	Eagle River	PM10
1/1/2010	2010 Appendix D, Weather Data (PDF 20K)	Report	Fairbanks	PM2.5
1/1/2010	2010 Appendix C, PM2.5 Data (PDF 140K)	Report	Fairbanks	PM2.5
1/1/2010	2010 Appendix B, Advisories (PDF 96K)	Report	Fairbanks	PM2.5
1/1/2010	2010 Appendix A, Media Coverage (PDF 12.9M)	Report	Fairbanks	PM2.5
1/1/2010	2010 Appendix D, Meteorological Data (PDF 654K)	Report	Fairbanks	PM2.5
1/1/2010	2010 Appendix D, Skew T (PDF 96K)	Report	Fairbanks	PM2.5
1/1/2010	2010 Waiver Request (PDF 5.2M)	Waiver Request	Fairbanks	PM2.5
3/11/2010	2010 EPA Concurrence Letter and Analysis (PDF 727K)	Letter	Fairbanks	PM2.5
1/1/2010	2010 Appendix E, Alaska Interagency Coordination Center Situation Report (PDF 5.2M)	Report	Fairbanks	PM2.5
1/1/2010	2010 Appendix D, Observation Codes (PDF 26K)	Report	Fairbanks	PM2.5
1/1/2010	2010 Waiver Request (PDF 1.2M)	Waiver Request	Anchorage and Eagle River	PM10
1/1/2013	2013 Appendix A, Media Coverage (PDF 3.2M)	Report	Fairbanks	PM2.5
6/27/2013	2013 Appendix B, Air Quality Advisories (PDF 290K)	Report	Fairbanks	PM2.5
1/1/2013	2013 Appendix C, Data (PDF 49K)	Report	Fairbanks	PM2.5
6/1/2013	2013 Appendix D, Weather Alaska Climate Research Center (PDF 643K)	Report	Fairbanks	PM2.5
1/1/2013	2013 Appendix D, Meteorological Data (PDF 2.3M)	Report	Fairbanks	PM2.5
1/1/2013	2013 Appendix D, Skew T (PDF 530K)	Report	Fairbanks	PM2.5
1/1/2013	2013 Appendix D, Weather (PDF 1M)	Report	Fairbanks	PM2.5
12/4/2013	2013 Waiver Request Letter (PDF 173K)	Letter	Fairbanks	PM2.5
1/1/2013	2013 Waiver Request (PDF 6.7M)	Waiver Request	Fairbanks	PM2.5
11/9/2013	2013 EPA Concurrence Letter and Analysis (PDF 1.9M)	Letter	Fairbanks	PM2.5
1/1/2013	2013 Appendix E, Alaska Interagency Coordination Center Situation Reports (PDF 7M)	Report	Fairbanks	PM2.5
6/19/2013	2013 Appendix E, Alaska Interagency Coordination Center Advisory (PDF 231K)	Report	Fairbanks	PM2.5
1/1/2015	2015 Waiver Request (PDF 11M)	Waiver Request	Fairbanks	PM2.5
2/15/2015	2015 Appendix A, Media Coverage (PDF 907K)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix B, Air Quality Advisories (PDF 353K)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix C, Fire Season Data (Excel) (XLS 10M)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix C, Fire Season Data (PDF) (PDF 158K)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix D, Daily Data (Excel) (XLS 4.8M)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix D, Daily Data (PDF) (PDF 2.4M)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix F, AICC Reports (PDF 6.1M)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix E, Tables and Figures (Excel) (XLS 1.1M)	Report	Fairbanks	PM2.5
2/15/2015	2015 Appendix E, Tables and Figures (PDF) (PDF 654K)	Report	Fairbanks	PM2.5
1/1/2015	2015 Appendix G, AQS Data (PDF) (PDF 559K)	Report	Fairbanks	PM2.5
1/1/2015	2015 Appendix G, AQS Data (Excel) (XLS 180K)	Report	Fairbanks	PM2.5
2/20/2015	2015 Waiver Request Letter (PDF 283K)	Letter	Fairbanks	PM2.5
10/31/2015	2015 EPA Concurrence Letter and Analysis (PDF 449K)	Letter	Fairbanks	PM2.5
2/15/2019	2019 Appendix G, AQS Data (XLS 181K)	Report	Fairbanks	PM2.5
2/15/2019	2019 Appendix F, Alaska Interagency Coordination Center Reports (PDF 5.5M)	Report	Fairbanks	PM2.5
2/15/2019	2019 Appendix E, Tables and Figures (XLS 3.3M)	Report	Fairbanks	PM2.5
2/15/2019	2019 Appendix C, Fire Season Data (XLS 1.4M)	Report	Fairbanks	PM2.5
2/15/2019	2019 Appendix B, Air Quality Advisories (PDF 266K)	Report	Fairbanks	PM2.5
2/15/2019	2019 Appendix A, Media Coverage (PDF 3.5M)	Report	Fairbanks	PM2.5
1/1/2019	2019 Waiver Request (PDF 26.1M)	Waiver Request	Fairbanks	PM2.5