this post was submitted on 01 Oct 2023
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[–] roboticide@lemmy.world 3 points 11 months ago (2 children)

I feel like there could be a few rational explanations to that, but I want someone smarter than me to tell me what exactly they could be...

[–] SwampYankee@mander.xyz 10 points 11 months ago

If the sediment is <100% consolidated, then water could be carrying microplastics down through the layers, even through microscopic voids.