If millions of tires have been worn down on the roads then where does all that worn off rubber go?
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In the air, the ocean, your lungs.
Most of the mass of particulate matter we breathe in is tire rubber and brake pads..
Decades ago I worked in a blacksmith shop that was directly below I 5 in Seattle. There was always this black dust everywhere in the shop. We calculated the number of cars that were on the freeway above us, and for the one mile of freeway and the average number of cars, we calculated that two tires were ground to dust every day above us as the source of the black dust. Now multiply that by all the highways in the country…
Dirty water goes to ocean. Sea creatures and sea vegetation live in ocean. You eat sea creatures or vegetation. Now you have tires in your body.
I would check the answers to this question the last hundred times it was asked lol. I think the answer is pretty obvious: Where it goes is on the side of the road, then into the creeks, rivers and oceans, in addition to blowing into the air. in other words it goes everywhere.
Rubber from tires, material from brake pads/rotors/drums, heavy metals like palladium platinum and rhodium from catalytic converters, and any fluids that leak out all end up as dust/debris on the side of the road, being blown around the environment and washed away by rain.
Motor vehicles are dirty pollution producing things. There are regulations, testing and (admittedly lackluster) enforcement in place to keep these things below a certain level, but there’s only so much you can do. Especially with how much our society depends on transportation.
Just another reason why public transportation and car pooling instead of everyone taking their own personal vehicles is a good thing.
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