Boris Johnson is targeting owners of diesel vehicles in a bid to lower the capital's air pollution levels.

The Mayor of London is proposing an additional £10 congestion zone charge for diesel vehicles – on top of the £11.50 already demanded.

The UK's towns and cities still suffer from poor air quality, to the point where the European Commission is taking legal action against Britain for failing to meet air pollution targets.

Other British cities are considering new charges and taxes similar to those proposed in London.

Mr Johnson also wants to see an increase in vehicle tax levied on diesels.

Labour too wish to see big improvements in the UK's urban air quality and aim to set up a network of low emission zones across the country – should they come to power. Such a move would see older diesel vehicles barred from entering city centres.

Oxford is one city leading the way in cutting diesel fumes, which contain nitrogen oxides that can lead to respiratory problems. Engines in all buses using the Oxford Low Emission Zone must meet the Euro V emission standard.

While city councils across the UK may be about to make driving a diesel engine in a city centre considerably more expensive, some campaigners want authorities to go further: namely by banning diesel vehicles completely.

But as many of our diesel vehicle owning breakdown cover customers will agree, it may not seem fair to suddenly ban a type of car that is still on sale.

What do you think of the new proposals? Let us know your thoughts below.