Originally Posted by
Nemrytter
One thing that surprised me from the study (not yet published, but under review now) was that smoke from aircraft tires was a strong contributor to local pollution and contained a whole array of nasty substances.
A significant proportion of particulates due to road use comes from tyres and brakes, but it's fairly hard to find much detailed information about it, especially in the current vogue of blaming everything on diesel cars.
Heading possibly more off-topic, there are predictions though that the proportion could eventually reach 90%, as well as assertions that as electric cars are heavier, they may cause more of these.