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NAAQS UPDATE

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NAAQS UPDATE

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    1. 1 NAAQS UPDATE

    2. 2

    3. 3 PM2.5 NAAQS Final rule published 9/21/06 Updated the 24-hour NAAQS from 65 ug/m3 to 35 ug/m3 Retained the annual NAAQS for PM2.5 of 15.0 ug/m3 Retained the 24-hour standard for PM10 at 150 ug/m3 Designations for 24 hour standard signed 10/8/09, published 11/13/09 Effective date: 12/14/09 Based on 2006-2008 air quality data All of VA, DC, and MD designated attainment Attainment date is 2014 Remand Based on court challenges to the annual standard, D.C. Court of Appeals remanded annual standard back to EPA in 2009. CASAC recommendation: 12.0-14.0 ug/m3 on annual average New proposal in February 2011

    4. 4 PM2.5 Annual Data, Out West

    5. 5 PM2.5 24-Hour Data, TRO

    6. 6 Evolution of Federal Ozone Requirements 1991 Standard 0.12 ppm Averaged over one hour 1997 Standard 0.08 ppm Averaged over eight hours 2008 Standard-published March 27, 2008 0.075 ppm Averaged over eight hours 2008 Standard Proposed Reconsideration Proposed Jan 5, 2010 0.060-0.070 ppm over eight hours (human health) 7-15 ppm-hrs (environment)

    7. 7 Proposed Reconsideration for Ozone Why the reconsideration of the 2008 standard? New standard schedule: Proposal published Jan 5, 2010 Final pushed back to October 31, 2010 Final designations of areas 10/2011 Plans to improve air quality due to EPA end of 2013 Air quality improvement milestones: 2014-2031

    8. 8 Virginia Ozone Air Quality Values 2007-2009

    9. 9 VA Potential Nonattainment Areas (0.060 ppm)

    10. 10 Fredericksburg Area Ozone Values, ppb

    11. 11 Western VA Ozone Values, ppb

    12. 12 Richmond-Petersburg Ozone Values, ppb

    13. 13 Fairfax Ozone Values, ppb

    14. 14 Other NoVA Ozone Values, ppb

    15. 15 Lead NAAQS Original Lead NAAQS set in 1978 at 1.5 ug/m3 averaged over a calendar quarter Revised October 15, 2008 0.15 ug/m3 Averaged over a rolling quarter New monitoring requirements Recommendations sent October 15, 2009 Unclassifiable for entire state No FRM data since 1998 in VA; only special purpose monitoring data Jun 14, 2010 letter from EPA – no designation action at this time Final designations by October 15, 2011 based on update monitoring data

    16. 16 New Lead FRM Network Winchester/GE Lamp Significant amount of monitoring data shows area well beneath standard Request for exemption granted by EPA Dulles Originally suggested as >0.5 tpy Piston engine aviation fuel has lead Has been removed from list (estimated emissions <<0.5 tpy)

    17. 17 Fairfax (NoVA) Urban Air Toxics Site Lead Monitoring Data, ug/m3

    18. 18 Hopewell (Richmond MSA) Urban Air Toxics Site Lead Monitoring Data, ug/m3

    19. 19 Hampton Roads Urban Air Toxics Site Lead Monitoring Data, ug/m3

    20. 20 NO2 NAAQS-Revised Jan 22, 2009 Previous standard for primary and secondary was 53 ppb on an annual average Previous standard unchanged since 1971 Revised primary standard to include a 1-hour standard of 100 ppb, 3 year average of 98th percentile of daily max 1 hour values Secondary standard being reviewed separately Modeling test – very hard for existing and even new sources to show compliance

    21. 21 Community Monitoring 1 monitor in urban areas with = 1,000,000 population Other monitors may be required Road Side Monitoring 1 monitor “near” major road in any urban area with = 500,000 population Other monitors may be required Near = no more than 50 meters Road must have high traffic level NO2 Monitoring Network Revisions

    22. 22 Governor’s recommendations due Jan 2011 Either unclassifiable or nonattainment No near road data to support an attainment designation recommendation EPA’s designations due Jan 2012 – either unclassifiable or nonattainment 2016-2017: EPA will make another round of designations using new monitoring data NO2 Area Designation Process

    23. 23 07-09 Data from Current NO2 Monitoring Sites

    24. 24 Current SO2 NAAQS set in 1971: Primary: 0.03 ppm annual arithmetic average 0.14 ppm 24 hour average Secondary: 0.5 ppm 3 hour average EPA new primary standard 1 hour standard set at 75 ppb Revoking 24 hour and annual standards Some monitoring network revisions proposed Designations based on monitoring and source specific modeling! Secondary standard is being reviewed separately Modeling test – very hard for existing and even new sources to show compliance SO2 NAAQS-Revised June 22, 2010

    25. 25 EPA’s SO2 NAAQS Implementation Timeline

    26. 26 SO2 Monitoring Data, 2007-2009 3 year average of 4th highest hourly values

    27. 27 Other Pending EPA Actions Carbon Monoxide Final due May of 2011 Combined secondary NO2 and SO2 standard Final due March 2012 Transport Rule 1 Proposed August 2010 To address the 1997 ozone and PM standards Transport Rule 2 Due in 2011 To address the pending ozone standard May include industrial boilers

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