2008 emissions inventory for the municipality of juárez, chihuahua, mexico january 23, 2014...

2008 Emissions Inventory for the Municipality of Juárez,

Chihuahua, MexicoJanuary 23, 2014

Presented by Marty Wolf, ERG

Meeting of the Joint Advisory Committee for the Improvement of Air Quality – Paso Del Norte

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Inventory Objective & Scope

Objective – Develop 2008 base year emissions inventory for ozone modeling

Scope– Pollutants – NOx, SO2, VOC, CO, PM10, and PM2.5– Source types – point, area, on-road motor

vehicle, nonroad mobile, biogenic– Inventory domain – municipality of Juárez– Annual resolution – annual (tpy)– Spatial resolution – municipality-level

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Source Types Point sources – federal and state

jurisdiction sources Area sources – fuel combustion,

evaporative, fires, miscellaneous On-road motor vehicles Nonroad mobile sources – aircraft,

locomotives, and construction and agricultural equipment

Biogenic sources – vegetation VOC and soil NOx

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Inventory Objective - Contractors

Objective – Work with Mexico-based contractors– ERG – lead technical contractor– UT – project prime contractor– Juárez-based subcontractors (TransEngineering,

ITCJ, Arturo Woocay Consulting, Mares Vazquez Consulting)

Accurate “on the ground” data collection and verification

Develops skills and capacity for future emission inventories

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Inventory Development Phase I – completed August 2011

– Area sources– On-road motor vehicles– Nonroad mobile sources– Biogenic sources

Phase II – completed June 2013– Point sources

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Point Sources Based upon 2008 Mexico NEI Focus on QA of reported emissions Emissions provided for 182 sources – 89

federal, 87 state, 6 duplicate Emissions primarily from federal

jurisdiction sources, except for VOC Largest sectors – electricity and

cement/lime Secondary sectors – petroleum,

petrochemical, automotive, chemical

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Point Source – Spatial QA Emphasis on ozone modeling – spatial

location is important Identified 45 facilities for field spatial

check– 26 facilities with coordinates outside

municipality– 8 facilities with coordinates in residential areas– 11 facilities with significant emissions (i.e.,

“high emitters”) Field survey check conducted by Arturo

Woocay Consulting and Mares Vazquez Consulting

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Field Check Results – Before and After QA

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Point Source – Emissions QA

Fuel consumption – should have combustion pollutants

Solvent usage – should have VOC Total PM ≥ PM10 ≥ PM2.5 Industry type should match reported

emissions– Gasoline terminals – VOC– Cement and concrete plants – PM10 and PM2.5

Facilities with similar fuel consumption should have similar emissions

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Area Sources Local Data

– Industry – natural gas and LPG suppliers, PEMEX

– Government – General Directorate of Public Works, Fire Department, SAGARPA, U.S. Bureau of Transportation Statistics, Junta Municipal de Agua y Saneamiento (JMAS)

Studies – San Luis Río Colorado, Sonora consumer

products survey study– Brick kiln study

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Area Sources – Results –NOx (tpy)

636

112

71

61

4834

2990 Industrial

ResidualIndustrial LPGResidential LPGOpen Waste BurningIndustrial Distil-lateTransportation LPGBrick KilnsAll Other

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On-Road Motor Vehicles General Methodology

– Based on methodology initially developed for 1999 Mexico NEI

– Road link/segment VKT developed using traffic and congestion modeling

– MOBILE6-Mexico emission factors developed for each link/segment (by season, speed, ambient temperature)

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On-Road Motor Vehicles Traffic and Congestion Modeling

– Urban area of Juárez– Federal Highway 2 (towards state of Sonora)– Federal Highway 45 (towards city of

Chihuahua)– Road network, trip generation rates, and

demographic and socio-economic information

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On-Road Motor Vehicles – Road Network

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On-Road Motor Vehicles – Traffic Volumes

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On-Road Motor Vehicles – Results – NOx (tpy)

4,960

1,381

983267 27 6 2

HDDVLDGTLDGVHDGVMCLDDTLDDV

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On-Road Motor Vehicles – Results – VOC (tpy)

3,794

2,875

560288 98 4 2

LDGVLDGTHDDVHDGVMCLDDTLDDV

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Nonroad Mobile Sources Aircraft LTOs by airframe make and model

– González International Airport Locomotive fuel use – Ferromex Agricultural and construction equipment –

NONROAD-Mexico model

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Biogenic Sources Biogenic sources – vegetation VOC and soil

NOx Estimated using GloBEIS model (Version

3.1) and Mexico-specific land use data set Land use data from INEGI and IMIP Meteorological data from NCDC

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Overall Results – NOx (tpy)

6,223

1,080

7,627

4,937

1,720

PointAreaOn-RoadNonroadBiogenics

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Overall Results – VOC (tpy)

2,574

24,895

7,621

5303,039

PointAreaOn-RoadNonroadBiogenics

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Summary of Results (tpy)

NA = not applicable; NE = not estimated

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Areas of Potential Improvement

Review of point source COAs Addition of PM10/PM2.5 sources – on-road

motor vehicles, paved/unpaved roads, windblown dust, construction dust

Migration from MOBILE6 to MOVES More frequent inventory updates

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Acknowledgements TCEQ – Stephen Niemeyer, Ross Pumfrey,

Victor Valenzuela, Gina Posada UT – David Sullivan SEMARNAT – David Alejandro Parra

Romero, Hugo Landa Fonseca, Gerardo Tarin

Subcontractors – TransEngineering, ITCJ, Arturo Woocay, Jose Maria Mares

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Gracias por su atenciónQuestions or comments?

Marty WolfEastern Research Group, Inc. (ERG)Sacramento, CA916-635-6594marty.wolf@erg.com