A transport expert claimed that a Euro 6 car has fewer NOx emissions than a Euro VI bus, surely this cannot be correct?!
Euro 6b (diesel car) - 0.080 g/km of NOx
Euro VI (bus) - 0.46 g/kWh of NOx
Need to convert from g/kWh to g/km. Assuming 1 gallon is equal to 36kWh and the bus does 7 miles per gallon.
7 m/g = 11.2km/g NOx/g = 0.46g/kWh 0.46g/kWh * 36kWh/gallon = 16.56g/gallon 11.2km/gallon / 16.56g/gallon = 1.49g/km
I make it that the bus would be 1.49g/km in comparison to the car that would be 0.08g/km. I make the single bus 18.6 times more polluting than a single car.
Is this correct?