I have to replace my tires every 60 000-100 000 KM as the tires wear down and the rubber comes off as I drive. If this is happening with all cars, why arnt the roads coated in rubber? Is somebody cleaning the tire rubber off the road? Is it getting washed away from the rain and into drains/the ocean? How long does it take for rubber to degrade that has come off the tire?
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The roads are coated with rubber, and not just the skid marks you sometimes see. The rubber wears off as a fine dust, carried by air currents, and spread over a substantial area, some of it being road — you even inhale some of it. It washes away from rain into storm drains and water ways.
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