Although plastic particles in the air are increasingly coming into focus, knowledge about their distribution and effects is still limited. Chemical analyses from Leipzig now provide details from Germany for the first time: Around 4% of the particulate matter consists of plastic. Around two-thirds of this comes from tire abrasion.
Fewer cars, more green-space in the countryside, so not a huge worry. Cities should really focus on public transit; it fixes so many problems, no more drinking and driving, freeway congestion, traffic accidents, cost of owning car.