This page is a listing of the values for the 2022 version of emission factors in SIMAP. n/a indicates that an emissions factor is not applicable or not available. Please contact us at simap@unh.edu with any questions.
| Category | Carbon dioxide (CO2) | Methane (CH4) | Nitrous Oxide (N2O) | Biogenic CO2 | Nitrogen Oxides (NOx) | Other N |
| On-Campus Stationary Sources: Residual Oil (#5-6) | 11.240757 kg CO2/gallon | 0.0015793 kg CH4/gallon | 0.000095 kg N2O/gallon | 0.00670256 kg NOx/gallon | ||
| On-Campus Stationary Sources: Distillate Oil (#1-4) | 10.161998 kg CO2/gallon | 0.0014497 kg CH4/gallon | 0.000087 kg N2O/gallon | 0.00615139 kg NOx/gallon | ||
| On-Campus Stationary Sources: Natural Gas | 52.91 kg CO2/mmbtu | 0.0052753 kg CH4/mmbtu | 0.000106 kg N2O/mmbtu | 0.03195374 kg NOx/mmbtu | ||
| On-Campus Stationary Sources: LPG (Propane) | 5.09205278 kg CO2/gallon | 0.0008549 kg CH4/gallon | 0.0000513 kg N2O/gallon | 0.00357036 kg NOx/gallon | ||
| On-Campus Stationary Sources: Coal (Steam Coal) | 1827.03855 kg CO2/short ton | 0.2013469 kg CH4/short ton | 0.030202 kg N2O/short ton | 15.8574 kg NOx/short ton | ||
| On-Campus Stationary Sources: Incinerated Waste | 178.6 kg CO2/short ton | 0 kg CH4/short ton | 0.150943 kg N2O/short ton | 201.4 kg CO2/short ton | 2.4720764 kg NOx/short ton | |
| On-Campus Stationary Sources: Wood Chips | 0 kg CO2/short ton | 5.5327137 kg CH4/short ton | 0.07377 kg N2O/short ton | 1639.50747 kg CO2/short ton | 0.53432314 kg NOx/short ton | |
| On-Campus Stationary Sources: Wood Pellets | 0 kg CO2/short ton | 5.5327137 kg CH4/short ton | 0.07377 kg N2O/short ton | 1639.50747 kg CO2/short ton | 0.53432314 kg NOx/short ton | |
| On-Campus Stationary Sources: Grass Pellets | 0 kg CO2/short ton | 5.5327137 kg CH4/short ton | 0.07377 kg N2O/short ton | 1639.50747 kg CO2/short ton | 0.53432314 kg NOx/short ton | |
| On-Campus Stationary Sources: Residual BioHeat | 8.727133 kg CO2/gallon | 0.0015327 kg CH4/gallon | 0.000092 kg N2O/gallon | 2.18178316 kg CO2/gallon | 0.00650469 kg NOx/gallon | |
| On-Campus Stationary Sources: Distillate BioHeat | 8.01239483 kg CO2/gallon | 0.001429 kg CH4/gallon | 0.000086 kg N2O/gallon | 2.00338045 kg CO2/gallon | 0.00606375 kg NOx/gallon | |
| On-Campus Stationary Sources: Ethanol | 0 kg CO2/gallon | 0.000567 kg CH4/gallon | 0.000257 kg N2O/gallon | 5.75 kg CO2/gallon | ||
| Direct Transportation Sources: Gasoline Fleet | 8.49898762 kg CO2/gallon | 0.00046334 kg CH4/gallon | 0.000301 kg N2O/gallon | 0.00935044 kg NOx/gallon | ||
| Direct Transportation Sources: Diesel Fleet | 10.161998 kg CO2/gallon | 0.0000296 kg CH4/gallon | 0.000031 kg N2O/gallon | 0.02623781 kg NOx/gallon | ||
| Direct Transportation Sources: Natural Gas Fleet | 52.91 kg CO2/mmbtu | 0.014 kg CH4/mmbtu | 0.000412 kg N2O/mmbtu | 0.04471587 kg NOx/mmbtu | ||
| Direct Transportation Sources: E85 Fleet | 2.20973678 kg CO2/gallon | 0.00103789 kg CH4/gallon | 0.001191 kg N2O/gallon | 4.255 kg CO2/gallon | 0.00921153 kg NOx/gallon | |
| Direct Transportation Sources: B5 Fleet | 9.653898 kg CO2/gallon | 0.0000296 kg CH4/gallon | 0.000031 kg N2O/gallon | 0.4725 kg CO2/gallon | 0.02623781 kg NOx/gallon | |
| Direct Transportation Sources: B20 Fleet | 8.129599 kg CO2/gallon | 0.0000296 kg CH4/gallon | 0.000031 kg N2O/gallon | 1.89 kg CO2/gallon | 0.02623781 kg NOx/gallon | |
| Direct Transportation Sources: B100 | 0 kg CO2/gallon | 0.0000296 kg CH4/gallon | 0.000031 kg N2O/gallon | 9.45 kg CO2/gallon | 0.02623781 kg NOx/gallon | |
| Direct Transportation Sources: Hydrogen | 0 kg CO2/mmbtu | 0 kg CH4/mmbtu | 0 kg NOx/mmbtu | |||
| Agriculture Sources: Fertilizer: Synthetic | 0.009444 kg N2O/lb | 0.2494756 kg N/lb | ||||
| Agriculture Sources: Fertilizer: Organic | 0.010157 kg N2O/lb | 0.2494756 kg N/lb | ||||
| Agriculture Sources: Animal Husbandry: Dairy Cows | 211.743258 kg CH4/lb | 1.47363903 kg N2O/head | ||||
| Agriculture Sources: Animal Husbandry: Beef Cows | 74.6014698 kg CH4/head | 0.47645782 kg N2O/head | ||||
| Agriculture Sources: Animal Husbandry: Swine | 13.0857999 kg CH4/head | 0.09188916 kg N2O/head | ||||
| Agriculture Sources: Animal Husbandry: Goats | 5.14571949 kg CH4/head | 0.03642987 kg N2O/head | ||||
| Agriculture Sources: Animal Husbandry: Sheep | 8.36538462 kg CH4/head | 0.19230769 kg N2O/head | ||||
| Agriculture Sources: Animal Husbandry: Horses | 19.1749895 kg CH4/head | 0.16785564 kg N2O/head | ||||
| Agriculture Sources: Animal Husbandry: Poultry | 0.06243141 kg CH4/head | 0.00242324 kg N2O/head | ||||
| Commuting: Automobile | 0.32590725 kg CO2/mile | 0.0000178 kg CH4/mile | 0.0000115 kg N2O/mile | 0.00035856 kg NOx/mile | ||
| Commuting: Carpool | 0.16295363 kg CO2/passenger mile | 0.00000888 kg CH4/passenger mile | 0.00000577 kg N2O/mile | 0.00017928 kg NOx/mile | ||
| Commuting: Public Bus | 0.06524557 kg CO2/passenger mile | 0.00000019 kg CH4/passenger mile | 0.000000198 kg N2O/passenger mile | 0.00084776 kg NOx/passenger mile | ||
| Commuting: Light Rail | 0.13731506 kg CO2/passenger mile | 0.0000109 kg CH4/passenger mile | 0.00000117 kg N2O/passenger mile | 0.00012099 kg NOx/passenger mile | ||
| Commuting: Commuter Rail | 0.13567596 kg CO2/passenger mile | 0.00000436 kg CH4/passenger mile | 0.000000697 kg N2O/passenger mile | 0.00026216 kg NOx/passenger mile | ||
| Directly Financed Outsourced Travel: Air: Faculty / Staff | 0.16030803 kg CO2/passenger mile | 0 kg CH4/passenger mile | 0.00000501 kg N2O/passenger mile | 0.0001947 kg NOx/passenger mile | ||
| Directly Financed Outsourced Travel: Air: Students | 0.16030803 kg CO2/passenger mile | 0 kg CH4/passenger mile | 0.00000501 kg N2O/passenger mile | 0.0001947 kg NOx/passenger mile | ||
| Directly Financed Outsourced Travel: Ground: Train | 0.12480616 kg CO2/passenger mile | 0.000000363 kg CH4/passenger mile | 0.000000378 kg N2O/passenger mile | 0.00043362 kg NOx/passenger mile | ||
| Directly Financed Outsourced Travel: Ground: Taxi / Ferry / Rental Car | 0.32590725 kg CO2/mile | 0.0000178 kg CH4/mile | 0.0000115 kg N2O/mile | 0.00035856 kg NOx/mile | ||
| Directly Financed Outsourced Travel: Ground: Public Bus | 0.06524557 kg CO2/passenger mile | 0.00000019 kg CH4/passenger mile | 0.000000198 kg N2O/passenger mile | 0.00084776 kg NOx/passenger mile | ||
| Directly Financed Outsourced Travel: Ground: Charter Bus - Diesel | 3.108722 kg CO2/mile | 0.0040824 kg CH4/mile | 0.00185 kg N2O/mile | |||
| Directly Financed Outsourced Travel: Ground: Charter Bus - CNG | 2.523174 kg CO2/mile | 0.000175 kg CH4/mile | 0.001966 kg N2O/mile | |||
| Directly Financed Outsourced Travel: Ground: Alternative Fuel Bus | 0 kg CO2/passenger mile | 0 kg CH4/passenger mile | 0 kg NOx/mile | |||
| Directly Financed Outsourced Travel: Ground: Mileage Reimbursement | 0.32590725 kg CO2/mile | 0.0000178 kg CH4/mile | 0.0000115 kg N2O/mile | 0.00035856 kg NOx/mile | ||
| Study Abroad: Air Travel | 0.16030803 kg CO2/passenger mile | 0 kg CH4/passenger mile | 0.00000501 kg N2O/mile | 0.0001947 kg NOx/mile | ||
| Student Travel to/from Home: Automobile | 0.32590725 kg CO2/mile | 0.0000178 kg CH4/mile | 0.0000115 kg N2O/mile | 0.00035856 kg NOx/mile | ||
| Student Travel to/from Home: Carpool | 0.16295363 kg CO2/mile | 0.00000888 kg CH4/passenger mile | 0.00000577 kg N2O/mile | 0.00017928 kg NOx/mile | ||
| Student Travel to/from Home: Public Bus | 0.06524557 kg CO2/passenger mile | 0.00000019 kg CH4/passenger mile | 0.000000198 kg N2O/passenger mile | 0.00084776 kg NOx/passenger mile | ||
| Student Travel to/from Home: Train | 0.12480616 kg CO2/passenger mile | 0.000000363 kg CH4/passenger mile | 0.000000378 kg N2O/passenger mile | 0.00043362 kg NOx/passenger mile | ||
| Student Travel to/from Home: Air Travel | 0.16030803 kg CO2/passenger mile | 0 kg CH4/passenger mile | 0.00000501 kg N2O/passenger mile | 0.0001947 kg NOx/passenger mile | ||
| Solid Waste: Incinerated Waste: Mass Burn | 10 kg CO2/short ton | |||||
| Solid Waste: Incinerated Waste: Refuse Derived Fuel (RDF) | ||||||
| Solid Waste: Landfilled Waste: No CH4 Recovery | 50.8 kg CH4/short ton | |||||
| Solid Waste: Landfilled Waste: CH4 Recovery and Flaring | 18.4 kg CH4/short ton | |||||
| Solid Waste: Landfilled Waste: CH4 Recovery and Electric Generation | 5.6 kg CH4/short ton | |||||
| Wastewater: Septic System | 0.000107 kg CH4/gallon | 0.0000014 kg N2O/gallon | 0.000161 kg N/gallon | |||
| Wastewater: Central Treatment System: Aerobic | 0.00001788 kg CH4/gallon | 0.00000551 kg N2O/gallon | 0.000142 kg N/gallon | |||
| Wastewater: Central Treatment System: Anaerobic | 0.00026736 kg CH4/gallon | 0.000142 kg N/gallon | ||||
| Wastewater: Central Treatment System: Aerobic + Anaerobic Digestion | 0.0000191 kg CH4/gallon | 0.00000551 kg N2O/gallon | 0.0000189 kg N/gallon | |||
| Wastewater: Central Treatment System: Anaerobic + Anaerobic Digestion | 0.00026858 kg CH4/gallon | 0.0000189 kg N/gallon | ||||
| Paper: Uncoated Freesheet: 0% recycled | 1.365993 kg CO2/lb | |||||
| Paper: Coated Freesheet: 0% recycled | 1.379148 kg CO2/lb | |||||
| Paper: Uncoated Groundwood: 0% recycled | 1.617964 kg CO2/lb | |||||
| Paper: Coated Groundwood: 0% recycled | 1.5184 kg CO2/lb | |||||
| Paper: Supercalendered: 0% recycled | 1.645406 kg CO2/lb | |||||
| Paper: Corrugated Unbleached: 0% recycled | 1.287975 kg CO2/lb | |||||
| Paper: Corrugated Semibleached: 0% recycled | 1.309748 kg CO2/lb | |||||
| Paper: Corrugated Bleached: 0% recycled | 1.424734 kg CO2/lb | |||||
| Paper: Paperboard SBS: 0% recycled | 1.574192 kg CO2/lb | |||||
| Paper: Paperboard CUK: 0% recycled | 1.510463 kg CO2/lb | |||||
| Paper: Paperboard Uncoated Bleached Kraft: 0% recycled | 1.411806 kg CO2/lb | |||||
| Paper: Paperboard Uncoated Unbleached Kraft: 0% recycled | 1.294326 kg CO2/lb | |||||
| Paper: Paperboard Coated Recycled: 0% recycled | 0.632761 kg CO2/lb | |||||
| Sinks: Compost: Agricultural Waste | -294 kg CO2/short ton | -18.14 kg N/lb | ||||
| Sinks: Compost: Dining Waste | -294 kg CO2/short ton | -9.436 kg N/short ton |
*eCO2 factors combined the CO2, CH4, and N2O emissions into a single emissions factor normalized to carbon dioxide equivalents (eCO2). Emission factors are only listed as eCO2 when the reference source only provides eCO2 factors. Otherwise, the emissions are listed in their constituent parts (e.g., CO2, CH4, N2O) and then converted to CO2-equivalents in SIMAP based on the GWP version you select on the Data Mgmt tab.