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Tire Dust Makes Up the Majority of Ocean Microplastics, Study Finds
(www.thedrive.com)
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this post was submitted on 01 Oct 2023
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Fuck Cars
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As per the quote below, a car loses about 0.08g of tread per km.
Compared to a car, a bike tyre is about the same diameter, 10% of the width (~20mm), 28% usable tread depth (~2mm), has 50% less wheels, and can travel 10% the distance (~10000km).
This suggests a (very approximate) tread loss of 0.08 * 10% * 28% * 50% / 10% = ~ 0.01g per km for bicycles.
For replacing longer car journeys less typically travelled by bicycle, rail transport is the best solution and removes the issue of tyre wear.
Quoting [deleted] in r/theydidthemath:
Your model fails to account for weight of the tyres, which has a big impact. I can't figure out what that ratio is though.