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Table 2 Summary of the median emissions of CH4 and N2O from the vehicles tested

From: Exhaust emission factors of greenhouse gases (GHGs) from European road vehicles

Category Fuel Standard Number of vehicles tested CH4 (mg/km) N2O (mg/km)
L-cat Gasoline + oil Euro 1/2 10 53.6 0.2
Gasoline Euro 2/3/4 23 20.7 1.6
Diesel Euro 2 3 5.0 1.3
Gasoline hybrid Euro 3 1 13.7 4.5
LDV Gasoline Euro 5 2 4.8 3.1
Euro 6b/c 13 3.2 0.9
Euro 6d-TEMP 7 1.7 0.3
Diesel Euro 5 2 3.6 6.2
Euro 6b/c 16 10.3 13.5
Euro 6d-TEMP 5 3.6 15.2
Gasoline hybrid Euro 5 2 0.8 0.3
Euro 6b 2 4.5 3.2
Flex-fuel (E85) Euro 5 3 14.7 0.5
Dual-LPG/Gasoline Euro 6b 1 2.3 0.9
LCV and HDV Diesel Euro 3(*) 1 33.4 27.9
Euro 6b(*) 2 23.6 16.8
Dual-CNG/Gasoline Euro 6b(*) 1 84.8 1.4
Diesel Pre-Euro I 1 25.8 1.1
Euro II 5 1.6 < 0.1
Euro III 1 0.3 < 0.1
Euro IV 1 2.4 1.3
Euro V 10 0.1 0.8
Euro VI 5 1.8 71.4
Dual-LPG/Diesel Euro V 1 27.9 9.5
Dual-CNG/Diesel Euro II 1 220.8 0.4
  1. (*) Light commercial vehicles (4 in total) are included in the HDV category. For the LDV, results were calculated from the WLTC only. “Hybrid” category includes hybrid-gasoline vehicles