this post was submitted on 11 Jul 2025
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Science Memes

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[–] [email protected] 43 points 2 days ago (7 children)

It's not what microplasitcs are! Does anyone knows what micro is at this point?

[–] [email protected] 33 points 1 day ago (2 children)

Microbeads are manufactured solid plastic particles of less than one millimeter in their largest dimension.[1] They are most frequently made of polyethylene but can be of other petrochemical plastics such as polypropylene and polystyrene. They are used in exfoliating personal care products, toothpastes, and in biomedical and health-science research.[2]

-Wikipedia

[–] [email protected] 30 points 1 day ago

To add to this, the definition of microplastic is less than 5mm. So yes, 1mm microbeads are microplastics.

https://en.wikipedia.org/wiki/Microplastics

[–] [email protected] 16 points 1 day ago (1 children)
[–] [email protected] 9 points 1 day ago

Centibeads🐛

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