Microplastics is the lead paint exposure of the current and past 2 generations. This article cites synthetic rubber from tires as a potential source of micro p

Microplastics is the lead paint exposure of the current and past 2 generations. This article cites synthetic rubber from tires as a potential source of micro plastics. Are there any studies that show how much people are exposed to? Comparisons between rubber from bikes, motorcycles, and different classes of motor vehicles (sedans/cars, trucks, heavy duty trucks or machinery, and even the subclass of EVs). Even more of a reason to get away from car centric transportation if the levels are several orders of magnitude difference.