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Emerging Issues in Air Quality Karen Perritt, M.S. Air Quality Specialist FHWA Resource Center @ Baltimore 410-962-0720; email@example.com What’s ahead?... • MOVES Emissions Model (EPA) • Climate Change • Transportation Conformity Quantitative PM Guidance CO Categorical Finding PM Categorical Finding • MSAT Guidance • Help me! • Web-based Conformity Training • Examples of Transportation Conformity Practices Website MOVES = MOtor Vehicle Emissions Simulator • Modeling system developed by US EPA, will… – Estimate emissions from on-road and nonroad sources – Cover a broad range of pollutants – Allow multiple scale analysis (national to fine-scale) • Replacement for MOBILE6 and NONROAD models • Why? – Address new analysis needs – Keep pace with new modeling approaches – Incorporate new data More information available at http://www.epa.gov/otaq/ngm.htm MOVES, SIP, and Possible Conformity Timeline 2007 2008 2009 2010 2011 2012 2013 2014 Demo Draft Final MOVES On-Road On-Road On-Road required for MOVES MOVES MOVES Conformity (up to 2 year grace period) Revised O3 SIP PM2.5 SIP Submittals Due Submittals (based on MOBILE) 24-hr PM2.5 SIP Submittals O3 SIP Due Submittals (based on MOBILE) Timeline courtesy of US EPA Implications of MOVES Release • Some MPOs may have difficulty demonstrating conformity for plans and TIPs with the new model, delaying federal projects • EPA plans to issue guidance for hotspot modeling for particulate matter (PM2.5 and PM10) to replace existing guidance for qualitative analysis • No statutory grace period for NEPA use, but will be required at some point (and commenters may want draft analyses redone with the newer model) What should environmental specialists do? Stay in touch with your DOT/state air agency • Preparing for MOVES implementation? • Any local issues? When released, read/review… • MOVES SIP and Conformity Policy Guidance • Project Level Conformity Guidance for PM • MOVES Technical Guidance for SIPs and Conformity (maybe) Climate Change See you tomorrow! Conformity – PM Quantitative Guidance The Transportation Conformity Rule requires quantitative PM hotspot analyses for projects of localized air quality concern once EPA releases modeling guidance. Current: Qualitative analysis required for projects of air quality concern Future: Quantitative analysis required, after – EPA releases modeling guidance – EPA announces that quantitative PM2.5 hotspot analyses are required under 93.123(b)(4) Implications: NEPA documents will include a quantitative analysis Conformity – CO Categorical Finding • Hotspot analysis is required for federal projects in CO nonattainment and maintenance areas. Current = modeling/analysis for each project by the project sponsor Future = DOT makes a CO Categorical Finding • Hotspot requirements are met without further analysis – Based on DOT modeling scenarios Consider emissions from category of projects based on size, configurations, LOS, resulting impact on air quality – In consultation with EPA – Note: project-level conformity determination still required 40 CFR 93.123(a)(3) Conformity – PM Categorical Finding • Hotspot analysis is required for some federal projects in PM nonattainment and maintenance areas. Current = qualitative analysis for each project Future #1 = EPA releases quantitative guidance (after MOVES release) Future #2 = DOT makes a PM Categorical Finding • Hotspot requirements are met without further analysis – Based on DOT modeling scenarios – In consultation with EPA – Note: project-level conformity determination still required Possible Implications of CO and PM Categorical Findings • Less air quality analysis (and less review) for NEPA documents • More streamlined/standardization across projects or across states • Less room for project-level comment/criticism (?) from public and consultation agencies – May still discuss whether project fits in category MSAT Guidance Mobile source air toxics (MSATs) impacts are considered on a project level basis. Current: MSAT Interim Guidance issued by FHWA in February 2006 – Qualitative assessment of impacts – Based on expected “level” of impacts Future: Changes to guidance? Implications: ? Help me! Transportation Conformity Training • Web-based, self-paced training on Transportation Conformity for FHWA Division staff – Environmental specialists, planners, engineers, managers • Designed as full training or module based • Modules include: Conformity Overview, What is a SIP, Project-level Conformity, PM Hotspot Analyses, and many more • Expected to be ready/announced this fiscal year • Beta test case reviewer? DRAFT – INFORMATIONAL PURPOSES ONLY Help Me! Examples of Transportation Conformity Practices Website Searchable “clearinghouse” of Transportation Conformity documents • State Implementation Plans (SIPs) with mobile source measures • PM Hotspot Analyses • PM Hotspot Procedures Expected to be available by end of fiscal year Questions? Comments?
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