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Exceptional Events

DEC requests exceptional event waivers from EPA to exclude wildland fire emissions caused by elevated PM2.5 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.

All Exceptional Events

Date Title and Document Download Category Program Description
1/1/2009 Appendix B, Advisories (PDF 284K) Report Fairbanks PM2.5
1/1/2009 Appendix C, PM2.5 Data (PDF 310K) Report Fairbanks PM2.5
1/1/2009 Appendix D, Meteorological Summary (PDF 314K) Report Fairbanks PM2.5
1/1/2009 Appendix E, Situation Reports (PDF 4.8M) Report Fairbanks PM2.5
1/1/2009 Appendix F, Chemical Plots (PDF 2.9M) Report Fairbanks PM2.5
1/1/2009 Waiver Request (PDF 4.6M) Waiver Request Fairbanks PM2.5
1/1/2009 Appendix A, Media (PDF 4.9M) Report Fairbanks PM2.5
10/30/2009 Waiver Request (PDF 1M) Waiver Request Eagle River PM10
1/1/2010 Appendix D, Weather Data (PDF 20K) Report Fairbanks PM2.5
1/1/2010 Appendix C, PM2.5 Data (PDF 140K) Report Fairbanks PM2.5
1/1/2010 Appendix B, Advisories (PDF 96K) Report Fairbanks PM2.5
1/1/2010 Appendix A, Media (PDF 12.9M) Report Fairbanks PM2.5
1/1/2010 Appendix D, Meteorological Data (PDF 654K) Report Fairbanks PM2.5
1/1/2010 Appendix D, Skew T (PDF 96K) Report Fairbanks PM2.5
1/1/2010 Waiver Request (PDF 5.2M) Waiver Request Fairbanks PM2.5
3/11/2014 Concurrence and Analysis Letter from EPA (PDF 727K) Letter Fairbanks PM2.5
1/1/2010 Appendix E, AICC Situation Report (PDF 5.2M) Report Fairbanks PM2.5
1/1/2010 Appendix D, Observation Codes (PDF 26K) Report Fairbanks PM2.5
1/1/2010 Waiver Request (PDF 1.2M) Waiver Request Fairbanks PM10
1/1/2013 Appendix A, Media (PDF 3.2M) Report Fairbanks PM2.5
6/27/2013 Appendix B, Air Quality Advisories (PDF 290K) Report Fairbanks PM2.5
1/1/2013 Appendix C, Data (PDF 49K) Report Fairbanks PM2.5
6/1/2013 Appendix D, Weather ACRC (PDF 643K) Report Fairbanks PM2.5
1/1/2013 Appendix D, Meteorological Data (PDF 2.3M) Report Fairbanks PM2.5
1/1/2013 Appendix D, Skew T (PDF 530K) Report Fairbanks PM2.5
1/1/2013 Appendix D, Weather (PDF 1M) Report Fairbanks PM2.5
12/4/2015 Waiver Request (PDF 173K) EPA Letter Fairbanks PM2.5
1/1/2013 Waiver Request (PDF 6.7M) Waiver Request Fairbanks PM2.5
11/9/2016 EPA Concurrence Letter and Analysis (PDF 1.9M) Letter Fairbanks PM2.5
1/1/2013 Appendix E, AICC Situation Reports (PDF 7M) Report Fairbanks PM2.5
6/19/2013 Appendix E, AICC Advisory (PDF 231K) Report Fairbanks PM2.5
2/15/2018 Waiver Request (PDF 11M) Waiver Request Fairbanks PM2.5
2/15/2018 Appendix A, Media Coverage (PDF 907K) Report Fairbanks PM2.5
2/15/2018 Appendix B, Air Quality Advisories (PDF 353K) Report Fairbanks PM2.5
2/15/2018 Appendix C, Fire Season Data (Excel) (XLS 10M) Report Fairbanks PM2.5
2/15/2018 Appendix C, Fire Season Data (PDF) (PDF 158K) Report Fairbanks PM2.5
2/15/2018 Appendix D, Daily Data (Excel) (XLS 4.8M) Report Fairbanks PM2.5
2/15/2018 Appendix D, Daily Data (PDF) (PDF 2.4M) Report Fairbanks PM2.5
2/15/2018 Appendix F, AICC Reports (PDF 6.1M) Report Fairbanks PM2.5
2/15/2018 Appendix E, Tables and Figures (Excel) (XLS 1.1M) Report Fairbanks PM2.5
2/15/2018 Appendix E, Tables and Figures (PDF) (PDF 654K) Report Fairbanks PM2.5
1/1/2015 Appendix G, AQS Data (PDF) (PDF 559K) Report Fairbanks PM2.5
1/1/2015 Appendix G, AQS Data (Excel) (XLS 180K) Report Fairbanks PM2.5
2/20/2018 Waiver Request (PDF 283K) Waiver Request Fairbanks PM2.5
10/31/2018 EPA Concurrence and Analysis (PDF 449K) Letter Fairbanks PM2.5
2/15/2020 Appendix G, Data (XLS 181K) Report Fairbanks PM2.5
2/15/2020 Appendix F, AICC Reports (PDF 5.5M) Report Fairbanks PM2.5
2/15/2020 Appendix E, Tables and Figures (XLS 3.3M) Report Fairbanks PM2.5
2/15/2020 Appendix C, Fire Season Data (XLS 1.4M) Report Fairbanks PM2.5
2/15/2020 Appendix B, Air Quality Advisories (PDF 266K) Report Fairbanks PM2.5
2/15/2020 Appendix A, Media Coverage (PDF 3.5M) Report Fairbanks PM2.5
4/21/2021 Waiver Request (PDF 26.1M) Waiver Request Fairbanks PM2.5

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