2019 Emission Factors Reference Table

The below table links to renfrences for the 2019 version of Emissions Factors. For reference for the 2018 or 2017 versions, see the carbon and nitrogen references here and here.

See this page for a full list of data sources for the 2019 version of Emissions Factors.

Please note this page is in progress. To request information about an emissions factor not yet linked to a reference page, please email us at simap@unh.edu 

Scope 1
Stationary Fuels
Source CO2 CH4 N2O NOx
Coal (steam coal)

1816.39 kg CO2/short ton

0.203 kg CH4/short ton 0.0305 kg N2O/short ton 9.46 kg NOx/short ton
Distillate Bioheat 10.02 kg CO2/gallon 0.00153 kg CH4/gallon 0.0000858 kg N2O/gallon 0.00508 kg NOx/gallon
Distillate Oil (#1-4) 10.16 kg CO2/gallon 0.00145 kg CH4/gallon 0.000087 kg N2O/gallon 0.00515 kg NOx/gallon
Ethanol 5.75 kg CO2/gallon 0.000567 kg CH4/gallon 0.000257 kg N2O/gallon Coming soon
Grass Pellets 1639.51 kg CO2/short ton 5.53 kg CH4/short ton 0.0738 kg N2O/short ton 0.607 kg NOx/short ton
Incinerated Waste 380 kg CO2/short ton 0 kg CH4/short ton 0.151 kg N2O/short ton 2.47 kg NOx/short ton
LPG (Propane) 5.17 kg CO2/gallon 0.000883 kg CH4/gallon 0.000053 kg N2O/gallon 0.00315 kg NOx/gallon
Natural Gas 53.02 kg CO2/mmbtu 0.00528 kg CH4/mmbtu 0.000106 kg N2O/mmbtu 0.0341 kg NOx/mmbtu
Residual BioHeat 10.91 kg CO2/gallon 0.00153 kg CH4/gallon 0.000092 kg N2O/gallon 0.00545 kg NOx/gallon
Residual Oil (#5-6) 11.24 kg CO2/gallon 0.00158 kg CH4/gallon 0.0000948 kg N2O/gallon 0.00561 kg NOx/gallon
Solar - Electric N/A N/A N/A N/A
Solar - Thermal N/A N/A N/A N/A
Wind N/A N/A N/A N/A
Wood Chips 1639.51 kg CO2/short ton 5.53 kg CH4/short ton 0.0738 kg N2O/short ton 0.607 kg NOx/short ton
Wood Pellets 1639.51 kg CO2/short ton 5.53 kg CH4/short ton 0.0738 kg N2O/short ton 0.607 kg NOx/short ton
Transport Fuels
B100 9.45 kg CO2/gallon 0.0000296 kg CH4/gallon 0.0000308 kg N2O/gallon 0.0446 kg NOx/gallon
B20 10.02 kg CO2/gallon 0.0000296 kg CH4/gallon 0.0000308 kg N2O/gallon 0.0446 kg NOx/gallon
B5 10.13 kg CO2/gallon 0.0000296 kg CH4/gallon 0.0000308 kg N2O/gallon 0.0446 kg NOx/gallon
Diesel Fleet 10.16 kg CO2/gallon 0.0000296 kg CH4/gallon 0.0000308 kg N2O/gallon 0.0446 kg NOx/gallon
E85 Fleet 6.49 kg CO2/gallon 0.00104 kg CH4/gallon 0.00119 kg N2O/gallon 0.0131 kg NOx/gallon
Gasoline Fleet 8.59 kg CO2/gallon 0.000463 kg CH4/gallon 0.000301 kg N2O/gallon 0.0134 kg NOx/gallon
Hydrogen N/A N/A N/A N/A
Natural Gas Fleet 53.02 kg CO2/mmbtu 0.014 kg CH4/mmbtu 0.000412 kg N2O/mmbtu 0.0575 kg NOx/mmbtu
Fertilizer
Organic Fertilizer N/A N/A 0.0102 kg N2O/lb N/A
Synthetic Fertilizer N/A N/A 0.00944 kg N2O/lb N/A
Animals
Beef Cows N/A 76.4 kg CH4/head 0.45 kg N2O/head N/A
Dairy Cows N/A 217 kg CH4/head 1.46 kg N2O/head N/A
Goats N/A 5.48 kg CH4/head 0.0476 kg N2O/head N/A
Horses N/A 20.5 kg CH4/head 0.124 kg N2O/head N/A
Poultry N/A 0.0621 kg CH4/head 0.00245 kg N2O/head N/A
Sheep N/A 8.57 kg CH4/head 0.19 kg N2O/head N/A
Swine N/A 12.6 kg CH4/head 0.0901 kg N2O/head N/A
Scope 2
Purchased Electricity https://unhsimap.org/cmap/resources/references/53 Coming Soon Coming Soon Coming Soon
Purchased Steam Coming Soon Coming Soon Coming Soon Coming Soon
Chilled Water Coming Soon Coming Soon Coming Soon Coming Soon
Scope 3 
Commuting
Automobile  0.36 kg CO2/passenger mile  0.0000192 kg CH4/passenger mile  0.0000125 kg N2O/passenger mile  0.000556 kg NOx/passenger mile
Bike  0 kg CO2/passenger mile  0 kg CH4/passenger mile  0 kg N2O/mile  0 kg NOx/passenger mile
Carpool  0.18 kg CO2/passengermile  0.00000962 kg CH4/passenger mile  0.00000625 kg N2O/passenger mile  0.000278 kg NOx/passenger mile
Commuter Rail  0.15 kg CO2/passenger mile 0.00000569 kg CH4/passenger mile  0.00000108 kg N2O/passenger mile  0.000452 kg NOx/passenger mile
Light Rail  0.16 kg CO2/passenger mile 0.00000603 kg CH4/passenger mile  0.00000201 kg N2O/passenger mile  0.000158 kg NOx/passenger mile
Public Bus  0.33 kg CO2/passenger mile  0.0000143 kg CH4/passenger mile  0.000000994 kg N2O/passenger mile  0.0014 kg NOx/passenger mile
Walk  0 kg CO2/mile  0 kg CH4/mile   0 kg N2O/mile  0 kg NOx/passenger mile
Business Travel & Study Abroad
Air Travel  0.16 kg CO2/passenger mile  0.00000476 kg CH4/passenger mile  0.0000049 kg N2O/passenger mile  0.000195 kg NOx/passenger mile
Alternative Fuel Bus  N/A  N/A  N/A  N/A
Charter Bus - CNG  2.52 kg CO2/vehicle mile  0.000175 kg CH4/vehicle mile  0.00197 kg N2O/vehicle mile  N/A
Charter Bus - Diesel  3.11 kg CO2/vehicle mile  0.00408 kg CH4/vehicle mile  0.00185 kg N2O/vehicle mile  N/A
Personal Mileage Reimbursement  0.36 kg CO2/passenger mile  0.0000192 kg CH4/passenger mile  0.0000125 kg N2O/passenger mile  0.000556 kg NOx/passenger mile
Public Bus  0.33 kg CO2/passenger mile  0.000000955 kg CH4/passenger mile  0.000000994 kg N2O/passenger mile  0.0014 kg NOx/passenger mile
Taxi / Ferry / Rental Car  0.36 kg CO2/passenger mile  0.0000192 kg CH4/passenger mile  0.0000125 kg N2O/passenger mile  0.000556 kg NOx/passenger mile
Train  0.12 kg CO2/passenger mile  0.000000346 kg CH4/passenger mile  0.00000036 kg N2O/passenger mile  0.000737 kg NOx/passenger mile
Student Travel to/from Home
Air Travel   0.16 kg CO2/passenger mile  0.00000476 kg CH4/passenger mile   0.0000049 kg N2O/passenger mile   0.000195 kg NOx/passenger mile
Automobile  0.36 kg CO2/passenger mile  0.0000192 kg CH4/passenger mile   0.0000125 kg N2O/passenger mile   0.000556 kg NOx/passenger mile
Carpool  0.18 kg CO2/passenger mile  0.00000962 kg CH4/passenger mile   0.00000625 kg N2O/passenger mile   0.000278 kg NOx/passenger mile
Public Bus  0.33 kg CO2/passenger mile  0.000000955 kg CH4/passenger mile   0.000000994 kg N2O/passenger mile   0.0014 kg NOx/passenger mile
Train  0.12 kg CO2/passenger mile  0.000000346 kg CH4/passenger mile   0.00000036 kg N2O/passenger mile   0.000737 kg NOx/passenger mile
Food
Food https://unhsimap.org/unhsimap.org/carbonreferencescope3food https://unhsimap.org/unhsimap.org/nitrogenreferencescope3food
Paper
To Be Added        
Waste and Watewater
Incinerated Waste: Mass Burn  -40 kg CO2/short ton

 N/A

 N/A   N/A
Incinerated Waste: Refuse Derived Fuel (RDF)  0 kg CO2/short ton  N/A  N/A   N/A
Solid Waste: Landfilled Waste: CH4 Recovery and Electric Generation  0 kg CO2/short ton  -1.2 kg CH4/short ton  N/A   N/A
Solid Waste: Landfilled Waste: CH4 Recovery and Flaring  0 kg CO2/short ton  12.4 kg CH4/short ton  N/A   N/A
Solid Waste: Landfilled Waste: No CH4 Recovery  0 kg CO2/short ton  124 kg CH4/short ton  N/A   N/A
Wastewater: Central Treatment System: Aerobic  0 kg CO2/short ton  0 kg CH4/gallon  0.00000163 kg N2O/gallon   N/A
Wastewater: Central Treatment System: Anaerobic  0 kg CO2/short ton  0.00034 kg CH4/gallon  0.00000163 kg N2O/gallon   N/A
Wastewater: Central Treatment System: Anaerobic Digestion  0 kg CO2/short ton  0.00000122 kg CH4/gallon  0.00000163 kg N2O/gallon   N/A
Wastewater: Septic System  0 kg CO2/short ton  0.000213 kg CH4/gallon  0.00000148 kg N2O/gallon   N/A
Sinks
Compost
Compost: Agricultural Waste        
Compost: Dining Waste