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Emissions and energy use of diesel driven railcar in Finland in 2016
Emissions [g] Diesel consumption Energy Number of seats Load factor
CO HC NOx PM CH4 N2O SO2  CO2  CO2e [g] [MJ] [%]
Per trainset kilometre 0.28 0.16 12 0.10 0.095 0.027 0.005 1 675 1 685 530 23 63  
Per passenger kilometre 0.012 0.0072 0.53 0.0044 0.00429 0.0012 0.00024 76.0 76.4 24 1.0 35
Return trip included so the figures should be multiplied directly with passenger kilometres
CO = Carbon monoxide, HC = Total hydrocarbons (including Methane CH4), NOx = Nitrogen oxides, PM = Total particulate matter, CH4 = Methane, N2O = Nitrous oxides, SO2 = Sulphur dioxide, CO2 = Carbon dioxide, CO2e = greenhouse gases in CO2 equivalents (CH4 factor 25 and N2O factor 298), MJ = Megajoule, kWh = Kilowatthour, tkm = tonne kilometre, pkm = passenger/person kilometre, TEU = container unit (20 feet), trailer = semitrailer combination or only trailer, trainset = motorised passenenger car 
VTT Technical Research Centre of Finland Ltd
LIPASTO unit emissions database
Last updated 6.7.2017