development of emission inventory improvements in el paso, texas
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Development of Emission Inventory Improvements in El Paso, Texas. Wen-Whai Li, Ph.D., P.E. 1 ; Huiyan Yang, Ph.D. 2 , George Pinal, EIT, M.S. 3 ; Victor Valenzuela, M.S. 4 ; Hector Olvera, Ph.D., P.E. 1 ; Kelvin Cheu, Ph.D., P.E. 1 ; Rosa Fitzgerald, Ph.D. 2 ; Hongling Yang, Ph.D. 5. - PowerPoint PPT PresentationTRANSCRIPT
Development of Emission Inventory Improvements in El Paso, Texas
Wen-Whai Li, Ph.D., P.E.1; Huiyan Yang, Ph.D.2, George Pinal, EIT, M.S.3 ; Victor Valenzuela, M.S. 4; Hector Olvera, Ph.D., P.E.1; Kelvin Cheu, Ph.D., P.E.1;
Rosa Fitzgerald, Ph.D.2; Hongling Yang, Ph.D.5
The Stakeholder Meeting of the El Paso Metropolitan Planning Organization
El Paso, TexasMarch 8, 2012
1Dept. Of Civil Eng.; 2Dept. Of Physics; 3El Paso MPO; 4TCEQ, Region 6; 5Dept. Of Mathematics; UTEP
Review of Emission Inventories
El Paso NOx Emissions (tons/year)
onroad area nonroad point0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
200220052008
El Paso VOC Emissions (tons/year)
onroad area nonroad point0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
200220052008
1996 Regional Emissions
Emission Inventory Improvements for El Paso
Development of Onroad Emissions
Based on the transportation network used by the El Paso MPO
NOx Emissions from Major Nonroad Mobile Sources in El Paso
9 GASOLINE COMMERCIAL EQUIPMENT 14 DIESEL COMMERCIAL EQUIPMENT
10 LPG INDUSTRIAL EQUIPMENT 15 DIESEL AIRPORT GROUND SUPPORT EQUIPMENT
11 DIESEL CONSTRUCTION & MINING EQUIPMENT 16 COMMERCIAL AIRCRAFT
12 DIESEL INDUSTRIAL EQUIPMENT 17 GENERAL AVIATION
13 DIESEL AGRICULTURAL EQUIPMENT 18 RAILROAD EQUIPMENT DIESEL
Identified Emission Inventory Improvement Targets for El Paso
• Light duty and heavy duty vehicles at the El Paso-Juarez international ports of entry
• Extended idling of heavy duty truck at truck stops and rest areas
• Tactical operations at Ft Bliss Military Reservation• Locomotives• Aircraft, auxiliary power units, and airport
ground support equipment• Dry cleaners
Example: Method of Estimating Emissions from Locomotives
• EMISSION FACTORS: derived from EPA Emission Factors for Locomotives (EPA-420-F-09-025, 2009)
• ACTIVITY DATA: Gross Ton-miles (GTM) from line haul locomotives operating in El Paso in 2005 and 2008 (Union Pacific (UP) and Burlington-Northern Santa Fe (BNSF)); Number of switch locomotives operated in El Paso in 2005 and 2008 (UP and BNSF)
Summary
• Reviewed and documented existing El Paso emission sources for significant ozone precursors
• Identified 6 emission sources for improvement in the EI database
• Provided methodologies to improve the data quality
• Developed work plan for further data collection or quantification (not discussed in this presentation)
Questions and Answers
Air Quality Study
U.S. CLIMATE CHANGE SCIENCE PROGRAM OFFICE, 2003