2019 Emission Factors Reference Table

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

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
SourceCO2CH4N2ONOx
Coal (steam coal)1816.39 kg CO2/short ton0.203 kg CH4/short ton0.0305 kg N2O/short ton9.46 kg NOx/short ton
Distillate Bioheat10.02 kg CO2/gallon0.00153 kg CH4/gallon0.0000858 kg N2O/gallon0.00508 kg NOx/gallon
Distillate Oil (#1-4)10.16 kg CO2/gallon0.00145 kg CH4/gallon0.000087 kg N2O/gallon0.00515 kg NOx/gallon
Ethanol5.75 kg CO2/gallon0.000567 kg CH4/gallon0.000257 kg N2O/gallonComing soon
Grass Pellets1639.51 kg CO2/short ton5.53 kg CH4/short ton0.0738 kg N2O/short ton0.607 kg NOx/short ton
Incinerated Waste380 kg CO2/short ton0 kg CH4/short ton0.151 kg N2O/short ton2.47 kg NOx/short ton
LPG (Propane)5.17 kg CO2/gallon0.000883 kg CH4/gallon0.000053 kg N2O/gallon0.00315 kg NOx/gallon
Natural Gas53.02 kg CO2/mmbtu0.00528 kg CH4/mmbtu0.000106 kg N2O/mmbtu0.0341 kg NOx/mmbtu
Residual BioHeat10.91 kg CO2/gallon0.00153 kg CH4/gallon0.000092 kg N2O/gallon0.00545 kg NOx/gallon
Residual Oil (#5-6)11.24 kg CO2/gallon0.00158 kg CH4/gallon0.0000948 kg N2O/gallon0.00561 kg NOx/gallon
Solar - ElectricN/AN/AN/AN/A
Solar - ThermalN/AN/AN/AN/A
WindN/AN/AN/AN/A
Wood Chips1639.51 kg CO2/short ton5.53 kg CH4/short ton0.0738 kg N2O/short ton0.607 kg NOx/short ton
Wood Pellets1639.51 kg CO2/short ton5.53 kg CH4/short ton0.0738 kg N2O/short ton0.607 kg NOx/short ton

 

Transport Fuels
SourceCO2CH4N2ONOx
B1009.45 kg CO2/gallon0.0000296 kg CH4/gallon0.0000308 kg N2O/gallon0.0446 kg NOx/gallon
B2010.02 kg CO2/gallon0.0000296 kg CH4/gallon0.0000308 kg N2O/gallon0.0446 kg NOx/gallon
B510.13 kg CO2/gallon0.0000296 kg CH4/gallon0.0000308 kg N2O/gallon0.0446 kg NOx/gallon
Diesel Fleet10.16 kg CO2/gallon0.0000296 kg CH4/gallon0.0000308 kg N2O/gallon0.0446 kg NOx/gallon
E85 Fleet6.49 kg CO2/gallon0.00104 kg CH4/gallon0.00119 kg N2O/gallon0.0131 kg NOx/gallon
Gasoline Fleet8.59 kg CO2/gallon0.000463 kg CH4/gallon0.000301 kg N2O/gallon0.0134 kg NOx/gallon
HydrogenN/AN/AN/AN/A
Natural Gas Fleet53.02 kg CO2/mmbtu0.014 kg CH4/mmbtu0.000412 kg N2O/mmbtu0.0575 kg NOx/mmbtu

 

Fertilizer
SourceCO2CH4N2ONOx
Organic FertilizerN/AN/A0.0102 kg N2O/lb NN/A
Synthetic FertilizerN/AN/A0.00944 kg N2O/lb NN/A

 

Animals
SourceCO2CH4N2ONOx
Beef CowsN/A76.4 kg CH4/head0.45 kg N2O/headN/A
Dairy CowsN/A217 kg CH4/head1.46 kg N2O/headN/A
GoatsN/A5.48 kg CH4/head0.0476 kg N2O/headN/A
HorsesN/A20.5 kg CH4/head0.124 kg N2O/headN/A
PoultryN/A0.0621 kg CH4/head0.00245 kg N2O/headN/A
SheepN/A8.57 kg CH4/head0.19 kg N2O/headN/A
SwineN/A12.6 kg CH4/head0.0901 kg N2O/headN/A

Scope 2

Scope 2
SourceCO2CH4N2ONOx
Purchased ElectricityReference: Electricity (CO2)Coming SoonComing SoonComing Soon
Purchased SteamComing SoonComing SoonComing SoonComing Soon
Chilled WaterComing SoonComing SoonComing SoonComing Soon

Scope 3

Commuting
SourceCO2CH4N2ONOx
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 mile0.00000569 kg CH4/passenger mile 0.00000108 kg N2O/passenger mile 0.000452 kg NOx/passenger mile
Light Rail 0.16 kg CO2/passenger mile0.00000603 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

 

Waste and Wastewater
SourceCO2CH4N2ONOx
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
SourceCO2CH4N2ONOx
Compost: Agricultural Waste-0.294 metric ton eCO2 / short ton compostN/AN/A  N/A
Compost: Dining Waste-0.294 metric ton eCO2 / short ton compostN/A N/A N/A