Something puzzles me. There are millions of vechicles on the road and each has several tires that wear out. Except for sling-off tread sections, the tire wear material is not on the road side. Where is it? Has it been worn to microscopic sized particles and become airborn. If that is the case, by now why isn't it showing up in the landscape, floating on the water surface or discovered in home air filters? Where else could it be?
Something puzzles me. There are millions of vechicles on the road and each has several tires that wear out. Except for sling-off tread sections, the tire wear material is not on the road side. Where is it? Has it been worn to microscopic sized particles and become airborn. If that is the case, by now why isn't it showing up in the landscape, floating on the water surface or discovered in home air filters? Where else could it be?