Air pollution on the up - but which nations are the dirtiest?

Air pollution has been a hot-button issue for the UK, with Volkswagen's diesel emissions scandal the spark that started a still-raging war against private cars and diesel vehicles in particular. And it's easy to see why – with toxic nitrogen oxide emissions contributing to poor health and air quality in crowded cities, a move to cleaner modes of transport may be long overdue.

But the UK is far from the worst offender in Europe. A new map, produced by clean energy company The Eco Experts has revealed that Blighty isn't even in the top ten most polluted countries in Europe – coming in 18th of 25 nations surveyed.