If millions of tires have been worn down on the roads then where does all that worn off rubber go?

Question

If millions of tires have been worn down on the roads then where does all that worn off rubber go?

In: 7336

Answer 1

breaks down to tiny particles that picked up by storm water.

Its why most commercial sites require some sort of filtration process for stormwater collected from roadways. Typically it is a Bioretention which is filled with granular stone or engineer soil fill. The water is directed into this artificial pond, and filtered through the stone and engineered soil to pull pollutants from the water, many of which come from tires, collected and redirected towards the city stormwater network.