Small new diesel cars are as polluting as a fully-laden lorry

Available for over a year

The World Health Organisation has warned that air pollution is one of the biggest threats facing public health. You may have wondered if a modern diesel engine is much cleaner than an old one. Well the Institute of Transport Studies at Leeds University has been testing that and it isn’t good news. Winifred Robinson finds out more. First broadcast on You & Yours, 6 March 2017.