The micro plastics people really need to link up with the urbanism people - having kilos of tire dust shredded on your doorstep isn't a necessary condition of living in a city, it's a result of how (at least in the US) car dependent our urban forms are.

I'm grateful to have moved from the Bay Area, parts of which are so criscrossed with freeways that it's impossible to not live near/under one (all of Oakland), to somewhere where, despite the density being overall much higher, I live far enough from a freeway or highway that I can't hear them at all at night.