• iAvicenna@lemmy.world
        link
        fedilink
        English
        arrow-up
        6
        ·
        21 days ago

        I mean BBB filter threshold is anywhere from 2.3 to 50 nm depending on pressure. Even though microplastics can get down to 1nm that is like an outlier. So in a situation where virtually almost all of microplastics must be filtered out, how does one get such a huge percentage as 0.1%?

      • Fermion@feddit.nl
        link
        fedilink
        English
        arrow-up
        4
        arrow-down
        2
        ·
        21 days ago

        It can’t help that so much of our food is packaged in plastic to keep water in or out.