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Gas driven (CNG) city bus
Gross vehicle mass 18t, carrying capacity 6t, automatic transmission, number of seats 43
Urban driving, arterial roads
Emissions per vehicle kilometre Emissions per passenger kilometre
CO [g/km] CO [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 1,1 1,5 0,070 0,034
EURO III (1999 - 2003) 1,2 1,5 0,073 0,035
EEV 0,62 0,70 0,036 0,016
EURO IV (2004 - 2007) 0,62 0,70 0,036 0,016
EURO V (2008 - 2013 ) 0,62 0,70 0,036 0,016
EURO VI (2014 --> 0,62 0,70
Average in 2016 1,1 1,4 0,069 0,033
HC [g/km] HC [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 7,0 7,3 0,396 0,170
EURO III (1999 - 2003) 2,60 2,80 0,149 0,065
EEV 1,30 1,35 0,073 0,0314
EURO IV (2004 - 2007) 1,30 1,35 0,073 0,0314
EURO V (2008 - 2013 ) 1,30 1,35 0,073 0,0314
EURO VI (2014 --> 0,06 0,07 0,004 0,0016
Average in 2016 3,35 3,56 0,191 0,083
NOx [g/km] NOx [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 12 13 0,69 0,31
EURO III (1999 - 2003) 7,1 7,8 0,41 0,18
EEV 1,7 2,1 0,10 0,048
EURO IV (2004 - 2007) 1,7 2,1 0,10 0,048
EURO V (2008 - 2013 ) 1,7 2,1 0,10 0,048
EURO VI (2014 --> 0,40 0,46 0,024 0,0107
Average in 2016 7,5 8,3 0,44 0,19
PM [g/km] PM [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 0,010 0,010 0,0006 0,0002
EURO III (1999 - 2003) 0,015 0,017 0,0009 0,0004
EEV 0,006 0,008 0,00038 0,00019
EURO IV (2004 - 2007) 0,010 0,010 0,00056 0,00023
EURO V (2008 - 2013 ) 0,010 0,010 0,00056 0,00023
EURO VI (2014 --> 0,010 0,010 0,00056 0,00023
Average in 2016 0,014 0,015 0,0008 0,0003
CH4 [g/km] CH4 [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 6,7 7,0 0,38 0,163
EURO III (1999 - 2003) 2,50 2,7 0,142 0,062
EEV 1,25 1,30 0,071 0,030
EURO IV (2004 - 2007) 1,25 1,30 0,071 0,030
EURO V (2008 - 2013 ) 1,25 1,30 0,071 0,030
EURO VI (2014 --> 0,040 0,04 0,002 0,001
Average in 2016 3,2 3,4 0,18 0,079
N2O [g/km] N2O [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 0,031 0,035 0,0018 0,00081
EURO III (1999 - 2003) 0,031 0,035 0,0018 0,00081
EEV 0,031 0,035 0,0018 0,00081
EURO IV (2004 - 2007) 0,031 0,035 0,0018 0,00081
EURO V (2008 - 2013 ) 0,031 0,035 0,0018 0,00081
EURO VI (2014 --> 0,031 0,035 0,0018 0,00081
Average in 2016 0,031 0,035 0,0018 0,00081
SO2 [g/km] SO2 [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 0,0026 0,0033 0,00016 0,000076
EURO III (1999 - 2003) 0,0026 0,0033 0,00016 0,000076
EEV 0,0026 0,0033 0,00016 0,000076
EURO IV (2004 - 2007) 0,0026 0,0033 0,00016 0,000076
EURO V (2008 - 2013 ) 0,0026 0,0033 0,00016 0,000076
EURO VI (2014 --> 0,0026 0,0033 0,00016 0,000076
Average in 2016 0,0026 0,0033 0,00016 0,000076
CO2 [g/km] CO2 [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 462 575 28 13
EURO III (1999 - 2003) 462 575 28 13
EEV 462 575 28 13
EURO IV (2004 - 2007) 462 575 28 13
EURO V (2008 - 2013 ) 462 575 28 13
EURO VI (2014 --> 462 575 28 13
Average in 2016 462 575 28 13
CO2 e [g/km] CO2 e [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 639 760 38 18
EURO III (1999 - 2003) 534 651 32 15
EEV 502 617 31 14
EURO IV (2004 - 2007) 502 617 31 14
EURO V (2008 - 2013 ) 502 617 31 14
EURO VI (2014 --> 472 586 29 14
Average in 2016 552 670 33 16
Fuel consumption [g/km] Fuel consumption [g/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 275 342 17 8,0
EURO III (1999 - 2003) 275 342 17 8,0
EEV 275 342 17 8,0
EURO IV (2004 - 2007) 275 342 17 8,0
EURO V (2008 - 2013 ) 275 342 17 8,0
EURO VI (2014 --> 275 342 17 8,0
Average in 2016 275 342 17 8,0
Fuel consumption [kg/100km] Fuel consumption [kg/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 27,5 34,2 0,017 0,0080
EURO III (1999 - 2003) 27,5 34,2 0,017 0,0080
EEV 27,5 34,2 0,017 0,0080
EURO IV (2004 - 2007) 27,5 34,2 0,017 0,0080
EURO V (2008 - 2013 ) 27,5 34,2 0,017 0,0080
EURO VI (2014 --> 27,5 34,2 0,017 0,0080
Average in 2016 27,5 34,2 0,017 0,0080
Energy [MJ/km] Energy [MJ/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 9,8 12 0,60 0,28
EURO III (1999 - 2003) 9,8 12 0,60 0,28
EEV 9,8 12 0,60 0,28
EURO IV (2004 - 2007) 9,8 12 0,60 0,28
EURO V (2008 - 2013 ) 9,8 12 0,60 0,28
EURO VI (2014 --> 9,8 12 0,60 0,28
Average in 2016 9,8 12 0,60 0,28
Energy [kWh/km] Energy [kWh/pkm]
Emission standard Empty fully loaded (43 pass.) 18 passengers fully loaded (43 pass.)
--> 1992        
EURO I (1993 - 1996)
EURO II (1997 - 1998) 2,7 3,4 0,17 0,079
EURO III (1999 - 2003) 2,7 3,4 0,17 0,079
EEV 2,7 3,4 0,17 0,079
EURO IV (2004 - 2007) 2,7 3,4 0,17 0,079
EURO V (2008 - 2013 ) 2,7 3,4 0,17 0,079
EURO VI (2014 --> 2,7 3,4
Average in 2016 2,7 3,4 0,17 0,079
Emission standard Suoriteosuus [%]
--> 1992  
EURO I (1993 - 1996)
EURO II (1997 - 1998) 20,0
EURO III (1999 - 2003) 70,0
EEV 0,0
EURO IV (2004 - 2007) 10,0
EURO V (2008 - 2013 ) 0,0
EURO VI (2014 --> 0,0
Total in 2016 100
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
CO2 emissions include the share of biofuels being in 2016 in gas (CBG) 40% of the calorific value.
VTT Technical Research Centre of Finland Ltd
LIPASTO unit emissions database
Last updated 24.9.2018