this post was submitted on 21 Sep 2024
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science

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[–] Jack@lemmy.ca 64 points 1 week ago* (last edited 1 week ago) (5 children)

Biggest sources:

  • 7.6 Mt from macro plastics breaking down
  • 1.3 Mt from paint
  • 1.0 Mt from tyres

10-40 Mt released into environment/year, and increasing.

[–] Delusional@lemmy.world 19 points 1 week ago (4 children)

I'm kinda surprised that more comes from paint than tires.

[–] ChilledPeppers@lemmy.world 6 points 1 week ago (1 children)

I think it depends on measure, if im not mistaken, by weight arohnd 50% of microplastics are tire dust.

[–] CleoTheWizard@lemmy.world 6 points 1 week ago

Also depends on where you’re measuring. They make up a ton of the plastics in stormwater runoff for example. Sometimes up to 95% from what I found. And that stormwater often ends up in our drinking water.

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