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Implications of the New NAAQS

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Implications of the New NAAQS All4 Inc. Air Quality Training Seminar Montgomery, AL December 7, 2010 Colin T. McCall All4 Inc.
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
NAAQS Background
CAA- §109 National Ambient Air Quality Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CAA- §109 National Ambient Air Quality Standards ,[object Object],[object Object],[object Object],[object Object]
NAAQS Background ,[object Object],[object Object],[object Object],[object Object],[object Object]
Current NAAQS Revisions
Current NAAQS Revisions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
NAAQS Summary Pollutant Averaging Period Historic NAAQS ( µ g/m 3 ) Revised NAAQS ( µ g/m 3 ) CO 1-Hour 10,000 10,000 8-Hour 40,000 40,000 Ozone 8-Hour 75 ppb 60 – 70 ppb (proposed) Pb 3-Month Rolling 1.5 0.15 PM 10 24-Hour 150 150 PM 2.5 24-Hour 65 35 Annual 15 15 NO 2 1-Hour N/A 188 Annual 100 100 SO 2 1-Hour N/A 196 3-Hour 1,300 1,300 24-hour 365 N/A Annual 80 N/A
Anticipated NAAQS Implementation Milestones Pollutant NAAQS Promulgation Date Designations Effective (approximate date) 110(a) SIPs Due (3 yrs after NAAQS promulgation) Attainment Demonstration Due Attainment Date PM 2.5 (2006) Sept 2006 Dec 2009 Sept 2009 Nov 2012 Nov 2014/2019 Pb Oct 2008 Nov 2010/2011 (extra time for new monitors) Oct 2011 June 2012/2013 Nov 2015/2016 NO 2 (primary) Jan 2010 Feb 2012 Jan 2013 Aug 2013 Feb 2017 SO 2 (primary) June 2010 July 2012 June 2013 Jan 2014 July 2017 Ozone Aug 2010 Aug 2011 (based on 2008-10 data) Aug 2013 Dec 2013 (to be proposed) Dec 2017 (Moderate) CO May 2011 June 2013 May 2014 Dec 2014 May 2018 PM 2.5 (2011) Oct 2011 Dec 2013 Oct 2014 Dec 2016 Dec 2018/2023 NO 2 /SO 2 Secondary March 2012 April 2014 March 2015 Oct 2015 N/A
New NAAQS Considerations ,[object Object],[object Object],[object Object],[object Object],[object Object]
NAAQS Implications and PSD Considerations
NAAQS Implications ,[object Object],[object Object],[object Object]
PSD Permitting Considerations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Interacting with the NAAQS ,[object Object],[object Object],[object Object],[object Object],[object Object]
NAAQS Implementation Process
Attainment/Nonattainment Designations ,[object Object],[object Object],[object Object],[object Object]
SO 2 NAAQS Monitoring Data
SO 2 NAAQS Implementation ,[object Object],[object Object],[object Object],[object Object]
SO 2 NAAQS SIP Submittals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SO 2 NAAQS Implementation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Facility Specific NAAQS Evaluation ,[object Object],[object Object],[object Object],[object Object]
Stringency of the NAAQS ,[object Object],[object Object],[object Object],[object Object],[object Object]
Example AERMOD Modeling
NAAQS Modeling Strategy ,[object Object],[object Object],[object Object],[object Object]
NAAQS Modeling Strategy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hypothetical Modeling Example ,[object Object],[object Object],[object Object],[object Object],[object Object]
“ Process” SO 2 Source ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Process SO 2 Source Impacts ,[object Object],[object Object],[object Object],[object Object]
Combustion SO 2 Source ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Combustion SO 2 Source Impacts ,[object Object],[object Object]
Engine SO 2 Source ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Engine SO 2 Source Impacts ,[object Object],[object Object],[object Object],[object Object]
Modeling Refinements ,[object Object],[object Object],[object Object],[object Object]
Modeling Refinements ,[object Object],[object Object],[object Object],[object Object],[object Object]
Modeling Refinements ,[object Object],[object Object],[object Object]
Cumulative Concentrations ,[object Object],[object Object],[object Object],[object Object]
Ambient Background Concentrations ,[object Object],[object Object],[object Object],[object Object]
Ambient Background Challenges ,[object Object],[object Object],[object Object],[object Object]
Ambient SO 2 Monitors
Ambient NO 2 Monitors
Ambient PM 2.5 Monitors
Ambient Background Challenges ,[object Object],[object Object],[object Object]
Ambient Background Considerations 188 NO 2 1-hour Concentration (  g/m 3 ) 80 NAAQS Level Monitored Background Value 108  g/m 3 available for modeling
Temporal Pairing ,[object Object],[object Object],[object Object],[object Object]
Temporal Pairing Example
Temporal Pairing Example
Temporal Pairing Example
Temporal Pairing Example
Planning Ahead
Planning Ahead ,[object Object],[object Object],[object Object],[object Object],[object Object]
Planning Ahead ,[object Object],[object Object],[object Object],[object Object],[object Object]
Planning Ahead ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusions ,[object Object],[object Object],[object Object],[object Object]

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Implications of the New NAAQS

  • 1. Implications of the New NAAQS All4 Inc. Air Quality Training Seminar Montgomery, AL December 7, 2010 Colin T. McCall All4 Inc.
  • 2.
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  • 9. NAAQS Summary Pollutant Averaging Period Historic NAAQS ( µ g/m 3 ) Revised NAAQS ( µ g/m 3 ) CO 1-Hour 10,000 10,000 8-Hour 40,000 40,000 Ozone 8-Hour 75 ppb 60 – 70 ppb (proposed) Pb 3-Month Rolling 1.5 0.15 PM 10 24-Hour 150 150 PM 2.5 24-Hour 65 35 Annual 15 15 NO 2 1-Hour N/A 188 Annual 100 100 SO 2 1-Hour N/A 196 3-Hour 1,300 1,300 24-hour 365 N/A Annual 80 N/A
  • 10. Anticipated NAAQS Implementation Milestones Pollutant NAAQS Promulgation Date Designations Effective (approximate date) 110(a) SIPs Due (3 yrs after NAAQS promulgation) Attainment Demonstration Due Attainment Date PM 2.5 (2006) Sept 2006 Dec 2009 Sept 2009 Nov 2012 Nov 2014/2019 Pb Oct 2008 Nov 2010/2011 (extra time for new monitors) Oct 2011 June 2012/2013 Nov 2015/2016 NO 2 (primary) Jan 2010 Feb 2012 Jan 2013 Aug 2013 Feb 2017 SO 2 (primary) June 2010 July 2012 June 2013 Jan 2014 July 2017 Ozone Aug 2010 Aug 2011 (based on 2008-10 data) Aug 2013 Dec 2013 (to be proposed) Dec 2017 (Moderate) CO May 2011 June 2013 May 2014 Dec 2014 May 2018 PM 2.5 (2011) Oct 2011 Dec 2013 Oct 2014 Dec 2016 Dec 2018/2023 NO 2 /SO 2 Secondary March 2012 April 2014 March 2015 Oct 2015 N/A
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  • 12. NAAQS Implications and PSD Considerations
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  • 18. SO 2 NAAQS Monitoring Data
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  • 40. Ambient SO 2 Monitors
  • 41. Ambient NO 2 Monitors
  • 42. Ambient PM 2.5 Monitors
  • 43.
  • 44. Ambient Background Considerations 188 NO 2 1-hour Concentration (  g/m 3 ) 80 NAAQS Level Monitored Background Value 108  g/m 3 available for modeling
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