This is getting to be a pain,
All part of the Global warming bullshit from the EU as for London Airport having to have all local vehicles blamed for the emissions there caused by the planes and then they want another runway put in to make it busier.
Global warming is not rubbish and is very serious. I would love to fit an appliance to my exhaust to capture all these nasty particles if I could.
By the way does a van run on veg oil still produce these dangerous particles.