New diesel cars are still exceeding EU limits for particle emissions, peaking at over 1000 times their normal level, according to campaign group Transport and Environment (T&E). T&E commissioned independent lab tests into the Nissan Qashqai and Opel Astra, two of the top-selling diesel cars in the market. It found they were between 32% and 115% over the legal limit of 600 billion particles per kilometre when they cleaned their filters. Filter cleaning, to prevent the diesel particulate filter from clogging, can occur in all driving conditions, including in urban areas. In the tests, the number of particles continued to be higher during urban driving for 30 minutes after the cleaning had ended. According to T&E, a loophole means that the legal limit does not apply when filter cleaning occurs in official testing, meaning that 60-99% of regulated particle emissions from the tested vehicles are ignored. Total particulate emissions from the Nissan Qashqai and Opel Astra were further increased by 11% to 184% when unregulated ultrafine particles were measured in the lab.  Transport & Environment (T&E) said lawmakers must accept that ‘diesels are still highly-pollut...