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Prop 7.A. - Page 191 �WOOd City GDF Expansion <br /> Air�,.a�„y,.,�����a,�.,��a��y�,,��a�ysis <br /> Appendix B: Operation Emission Calculations <br /> Table B-7. San Mateo County EMFAC2011 On-road Vehicle Queuing Emission Factors for 2012(5 miles/hour). <br /> Summer Emission Factors Winter Emission Factors Peak Daily Emission Factors Ann.Ave.Emission Factors <br /> LDAs,LDTs,and MDTs LDAs,LDTs,and MDTs LDAs,LDTs,and MDTs LDAs, LDTs,and MDTs <br /> Parameter Units Gasoline Fuel Onl Gasoline Fuel Onl Gasoline Fuel Onl Gasoline Fuel Onl <br /> Criteria Pollutants <br /> ROG Ib/mile 0.00088063 0.00087393 0.00088063 0.00085269 <br /> CO Ib/mile 0.01186089 0.01125648 0.01186089 0.01089206 <br /> NOx Ib/mile 0.00085353 0.00105489 0.00105489 0.00097048 <br /> PM�o Ib/mile 0.00003678 0.00003678 0.00003678 0.00003678 <br /> PM2.5 Ib/mile 0.00003357 0.00003357 0.00003357 0.00003357 <br /> SOx Ib/mile 0.00000000 0.00000000 0.00000000 0.00000000 <br /> Greenhouse Gases <br /> COZ Ib/mile 3.00224547 2.78468848 3.00224547 2.79340529 <br /> CH4 Ib/mile 0.00008630 0.00008131 0.00008630 0.00008152 <br /> N20 Ib/mile 0.00006614 0.00006231 0.00006614 0.00006248 <br /> Notes: <br /> 1. Vehicle queuing emission factors for criteria pollutants and COz are based on the California Air Resources Board's EMFAC2011 model <br /> emission estimates for San Mateo County for vehicles operating at 5 miles per hour in 2012. Source: California Air Resources Board, <br /> EMFAC2011 Web Based Data Access,October 24,2011,emissions data option,available at www.arb.ca.gov/msei/modeling.htm <br /> (accessed January 17,2012). Emissions were estimated for the light duty auto(LDA),light duty truck(LDT1 and LDT2),and medium <br /> duty vehicle(MDV)categories,summed,and converted to pounds per mile using the sum of EMFAC2011 daily VMT estimates. <br /> 2. Methane(CH4)and nitrous oxide(N20)emissions were calculated based on emission factors developed for the California Air <br /> Resources Board 2000-2009 Greenhouse Gas Emissions Inventory. Source: California Air Resources Board,Documentation of <br /> California's Greenhouse Gas Inventory,May 24,2012,data for 2009,Category 1A3b-Road Transportation,available at <br /> www.arb.ca.gov/cc/inventory/doc/doc_index.php(accessed May 24,2012). Factors for Light Duty Trucks and Sports Utility <br /> Vehicles were used for Medium Duty Vehicles(MDVs). The CFiI and N20 factors were multiplied by the composite VMT-normalized <br /> fuel use for 2012 LDAs, LDTs,and MDVs in San Mateo County since EMFAC2011 speed-based model outputs reflect fuel use for <br /> entire vehicle categories,rather than the specified speed range. <br /> a.Light duty autos(Category 1A3bi-gasoline): <br /> 0.793 grams methane/gallon of gasoline <br /> 0.598 grams nitrous oxide/gallon of gasoline <br /> b.Light duty trucks and Sports Utility Vehicles(Category 1A3bii-gasoline): <br /> 0.748 grams methane/gallon of gasoline <br /> 0.584 grams nitrous oxide/gallon of gasoline <br /> 3. Vehicle queuing emission factors for criteria pollutants and COz include only vehicle exhaust emissions. ROG emission factors do <br /> not include diurnal,hot soak,running loss,or resting loss emissions. PNI�o and PM2.5 factors do not include brake wear or tire wear <br /> emissions. <br /> 4. Conversion factors: <br /> 2000 pounds/ton <br /> 453.59 grams/pound <br /> Page 11 Date: 7/30/2012 <br />