- 1. Basic method of calculating greenhouse gas emissions (IPCC guidelines)
(Emissions of individual greenhouse gas) = {(activity amount) x (emissions coefficient)}
(Total emissions of greenhouse gases) = {(individual greenhouse gas emissions) x (global warming coefficient)} - 2. Emissions coefficient chart
Item Emissions coefficient Emissions from fuel combustion
Coal
Kerosene
Gasoline
Jet fuel
Diesel fuel
Class A crude oil
Class B crude oil
Class C crude oil
Petroleum products
Liquefied petroleum gas (LPG)
Natural gas (excluding liquefied natural gas)
Coal gas
2.40 kg-CO2/kg
2.51 kg-CO2/L
2.31 kg-CO2/L
2.40 kg-CO2/L
2.64 kg-CO2/L
2.77 kg-CO2/L
2.90 kg-CO2/L
2.96 kg-CO2/L
2.64 kg-CO2/L
3.20 kg-CO2/kg
2.20 kg-CO2/m3
2.15 kg-CO2/m3
Emissions from electricity generation
Electricity utility
Power producer and supplier
Unspecified default0.338〜0.481 Kg-CO2/kWh
0.289〜0.507 Kg-CO2/kWh
0.555 Kg-CO2/kWhEmissions from incinerating general waste 2.64 kg-CO2/t Emissions from incinerating industrial waste
Waste oil
Plastics
2.90 kg-CO2/t
2.60 kg-CO2/tOther
Tap water
Sewage
0.316 kg-CO2/m3
1.202 kg-CO2/m3 - 3. Coefficients of global warming potential
Greenhouse gas Coefficient of global warming potential Carbon dioxide
Methane
Nitrous Oxide
Fluoroform (HFC-23)
Difluoromethane (HFC-32)
Fluoromethane (HFC-41)
SF61
21
310
11,700
650
150
23,900Source: Ministry of the Environment, "Report on Greenhouse Gas Emissions Calculation Methodology," September 2000.
- 4. Methods of calculating greenhouse gas emissions |
