OVERVIEW of SIP for Annual PM2.5 Standard MWAQC December 12, 2007
Outline Fine Particle Pollution, Definition & SIP Requirements Attainment Demonstration Inventories Control Measures Mobile Vehicle Emissions Budgets Contingency Plan Public Hearing Process
Air Pollution: Fine Particles Chemical, particulate matter or aerosol that modifies the natural characteristics of the atmosphere Created locally by emissions from coal combustion, cars & trucks, road construction Causes respiratory problems Impairs visibility
Formation of Ground Level Ozone
Formation of Fine Particles
Sources of Particle Pollution Source: EPA
PM2.5 Planning Schedule: Annual Jul Jul 1997 1997 Dec Dec 2007 2007 Jan-Feb Jan-Feb 2008 2008 Apr Apr 5 2008 2008 2009-2009- 2010 2010 PM 2.5 Standard First Promulgated Designated NAA for 1997 Annual standard Public Hearings on Annual PM2.5 Plan Attainment Deadline 2006 Daily PM2.5 Designations Made Annual PM2.5 DRAFT Plan approved Plan due to EPA
PM2.5 SIP Requirements Comparison to 8-hr 8 Ozone SIP 2002 Base Year, 2009 Attainment Year 5 precursors: VOC, NH3, SO2, NOx, PM2.5- Direct NO RFP in 2008 Attainment Modeling RACM, RACT Contingency Measures
Attainment Modeling Results Stat e 2000-2004 DVB AIRS ID Site Name Jurisdiction Q1 Q2 Q3 Q4 #Q DVF 14.8 18.7 11-001- District of River Terrace --- 5 14.91 6 14.16 20 12.6 0041 Columbia 13.4 17.3 11-001- District of Park Services --- 3 15.49 3 12.98 20 11.9 0042 Columbia 13.6 18.1 11-001- District of McMillan --- 5 15.28 0 13.55 20 12.1 0043 Columbia 11.2 16.0 24-031- Rockville Montgomery MD 3 13.64 1 10.43 20 10.4 3001 14.5 22.0 24-033- Bladensburg Prince George's MD 3 16.72 0 14.93 11 13.9 0001 14.8 24-033- Greenbelt Prince George's MD 9.73 12.37 3 9.28 7 9.5 0002 14.9 24-033- Beltsville Prince George's MD NA NA 3 10.36 2 10.4 0030 12.0 15.6 24-033- Suitland Prince George's MD 4 15.61 6 11.62 8 11.0 8001 11.6 17.2 24-033- PG Equestrian Center Prince George's MD 1 15.72 6 10.87 11 11.3 8003 13.2 17.2 51-013- Aurora Hills Arlington VA 7 14.88 7 13.05 20 11.5 0020 11.5 16.9 51-059- Franconia Fairfax VA 9 14.01 5 12.02 19 10.4 0030 12.5 17.2 51-059- Annandale Fairfax VA 8 14.20 5 11.37 11 10.5 1005 12.6 17.8 51-059- Lewinsville Fairfax VA 3 14.05 0 12.37 19 10.7 5001 11.3 17.3 51-107- Ashburn Loudoun VA 8 14.14 2 11.71 20 10.1 1005 200 9 Annual PM2.5 standard= 15 ug/m3
PM2.5 and Observed Data PM 2.5 Annual Daily EPA 1997 15 ug/m3 65 ug/m3 Science Advisors 13-14 14 ug/m3 35 ug/m3 EPA 2006 15 ug/m3 35 ug/m3 Observed Data 2005 14.8 ug/m3 37 ug/m3 2006 14.5 ug/m3 36 ug/m3
Annual PM2.5 Standard: 15 ug/m3 17.5 17.0 17.3 Annual PM2.5 Design Value (Washington Region) 17.1 Design Value (µg/m3) 16.5 16.0 15.5 15.0 14.5 14.0 15.8 15.1 Annual PM2.5 Standard - 15 µg/m 3 14.6 14.5 1999-2001 2000-2002 2001-2003 2002-2004 2003-2005 2004-2006 Year
PM2.5 Inventories
Significant PM2.5 Precursors PM 2.5 Direct NO x SO 2 VOC NH 3 PM 10 EPA SIP Requirements for PM Pollutants Base Year Emission Inventory Attainment Year Emission Inventory - - Not required Significance Determinations for SIP Controls and Motor Vehicle Emission Budgets Significance Precursors for SIP Controls Significance Precursors for Motor Vehicle Emission Budgets for Conformity - = Not required unless precursor deemed significant by states or EPA. No No* No* No* No* * = Due to lack of conclusive information at this time, given the state of science and research on PM 2.5 precursors, the Washington, DC region decided to follow EPA s advice on VOC and NH 3 for the current Annual PM 2.5 NAAQS SIP and reevaluate their significance in future PM 2.5 SIPs and revisions.
PM2.5 Precursor Inventories PM2.5-Direct Emissions by Source (2002 Vs. 2009) Washington, DC Nonattainment Area Emissions (tpy) 30000 25000 20000 15000 10000 5000 0 16,893.49 18,605.75 2,618.31 2,226.56 4,169.55 4,650.55 1,724.70 1,107.96 Point Area Non-road On-road Total 25,406.06 26,590.83 2002 2009
PM2.5 Precursor Inventories PM2.5 Precursor Inventories NOx Emissions by Source (2002 Vs. 2009) Washington, DC Nonattainment Area SO2 Emissions by Source (2002 Vs. 2009) Washington, DC Nonattainment Area 12,335.56 14,249.81 2,833.10 1,303.04 204,651.84 215,826.82 3,539.98 518.36 223,360.49 231,898.03 Point Area Non-road On-road Total Point Area Non-road On-road Total 250000 200000 150000 100000 50000 0 2002 2009 Emissions (tpy) 61,342.56 25,580.86 13,954.02 199,594.00 15,649.25 97,575.31 26,722.11 23,670.94 52,201.94 117,102.98 200000 150000 100000 50000 0 2002 2009 Emissions (tpy)
Control Measures
Plan to Reduce Fine Particles Point Source NOX SIP Call Clean Air Interstate Rule (CAIR) - VA & DC Maryland Healthy Air Act - MD Utility Reductions (Possum Point Fuel Conversion) -VA Area Source National Locomotives Rule Nonroad Source 2004 Nonroad Heavy Duty Diesel Rule Onroad Source Heavy-Duty Diesel Engine Rule Tier 2 Motor Vehicle Emission Standards Vehicle Inspection Program
Plan to Reduce Fine Particles Supplemental Measures: Telecommuting Initiative Tree Canopy Programs Wind Energy Purchases Energy Efficiency in buildings LED Traffic Signal Retrofits Renewable Portfolio Standards
Contingency Plan
Planning Requirements SIP must contain post-2010 measures Approx. 10,000 tpy NOx target Will meet using both NOx and SO 2 Measures Tier 2 Motor Vehicle Standards CAIR/HAA
Mobile Vehicle Emissions Budgets Ozone SIP: 2008, 2009, 2010 PM2.5 SIP: 2009, 2010
NEXT STEPS Dec. 12: MWAQC vote to approve SIP for public comment Dec. 21: Start of 30-day public comment period January 28: Public hearings held. February 12: TAC reviews comments and responses to comments March 6: MWAQC votes to approve
Draft PM2.5 SIP http://sharepoint.mwcog.org/airquality/shared %20Documents/Forms/AllItems.aspx