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hanniabu
on March 8, 2020
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Pollution from tire wear is worse than exhaust emi...
How do you know it was tire dust and not just regular dust?
pshc
on March 8, 2020
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I had the same experience, in SF too. Second floor corner apartment on Fell St, a wide and busy road along the park. The windowsills on that side accumulated black dust unlike the other side of the corner.
Eric_WVGG
on March 8, 2020
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... because he opened multiple windows and the only one to gather grime was facing the street.
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