Diesel cars are 10 times more toxic than trucks and buses, data shows

Stricter EU emissions testing for large vehicles means modern diesel cars produce 10 times more NOx per litre of fuel

Modern diesel cars produce 10 times more toxic air pollution than heavy trucks and buses, new European data has revealed.

The stark difference in emissions of nitrogen oxides (NOx) is due to the much stricter testing applied to large vehicles in the EU, according to the researchers behind a new report. They say the same strict measures must be applied to cars.