The following table compares total emissions of CO 2 ,the main greenhouse gas, and NOxand PM 1 0 the two pollutants of most concern to local air quality, for representative electric and diesel trains and a car travelling between London and Birmingham. Two sets of figures are provided, one detailing the total emissions for the journey, the other detailing emissions per passenger journey assuming average vehicle loadings.
|CO 2 (kg)||NOx (g)||PM 1 0 (g)|
|Total journey emissions|
|Emissions per passenger|