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cm0002@lemmy.world to Science@mander.xyz · 2 个月前

Cleaning plastic containers in a dishwasher is a source of microplastic pollution, study finds

phys.org

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Cleaning plastic containers in a dishwasher is a source of microplastic pollution, study finds

phys.org

cm0002@lemmy.world to Science@mander.xyz · 2 个月前
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Washing household plastic containers in a dishwasher releases nanoplastic and microplastic pollution into wastewater, University of Queensland researchers have found.
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  • Mouselemming@sh.itjust.works
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    2 个月前

    Betcha scrubbing them in the sink does too. It’s just harder to set up a controlled study.

    • seathru@lemmy.sdf.org
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      Yeah I wish they would have done that. Would be interesting to see. Hand washed plastic containers are subjected to much more mechanical scrubbing action, but much less heat.

    • ProvableGecko@lemmy.world
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      2 个月前

      My dish sponge is plastic.¯_(ツ)_/¯

    • FooBarrington@lemmy.world
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      Dishwashers usually wash hotter than you do in the sink & reuse the water, so I’d imagine they also produce more microplastic in the process.

      • Mouselemming@sh.itjust.works
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        Hotter yes, but no plastic-on-plastic scrubbing. And not reusing the water wouldn’t change the amount of plastic, it would just be diluted in a larger amount of water. My guess would be, larger particles. But I can see why that would have to be its own, more complicated study. Because so many more variables.

        • FooBarrington@lemmy.world
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          2 个月前

          Do you know that water with microplastics doesn’t cause even more microplastics? Seems reasonable to me - the existing microplastic should be ground even finer, and also cause more microplastic to be ground off.

          • Mouselemming@sh.itjust.works
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            Interesting thought, we’ll have to include it in our study. I posit that the microparticles from hand washing will be larger anyway, because method, and will include plastic from the scrubber as well as the containers.

            • FooBarrington@lemmy.world
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              There’s a good chance! Really depends on the impact of temperature, though since we’re still waaaaay below the melting point of plastic, intuitively I’d agree with you.

              • Mouselemming@sh.itjust.works
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                So where do we get our funding? I’m thinking about a billion, if we call it The Big Beautiful Golden Study, sponsored by plastic and dishwasher manufacturers.

                • FooBarrington@lemmy.world
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                  No no no, you have to think about it differently. Neither of those industries will want to sponsor something like this. Instead we have to go with their natural enemies - and was is the opposite of plastic (i.e. what is non-plastic)? Obviously concrete!

  • protist@mander.xyz
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    2 个月前

    Basically any situation where plastic is warmed is a source of microplastic contamination

    • Microplasticbrain@lemm.ee
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      deleted by creator

    • Wahots@pawb.social
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      2 个月前

      Probably mechanical abrasion too. Like car tires. Or your carpets/rug. Or your toothbrush. Or your nylon/sport/athlesure wear. Or soft, non-natural blankets, haha. I bet your furniture, too…

      • desktop_user [they/them] @lemmy.blahaj.zoneBanned
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        2 个月前

        wool carpets for the win.

    • Mouselemming@sh.itjust.works
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      And yet somehow it lasts forever in a landfill.

      We can’t win.

      • 18107@aussie.zone
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        2 个月前

        Just wash your dishes in a landfill.

        • Dark Arc@social.packetloss.gg
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          2 个月前

          So that’s why Oscar is always hiding in the trash can grumbling!

    • Ledericas@lemm.ee
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      water with cleaning chemicals probably leaches some out too.

  • Wahots@pawb.social
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    And people are grossed out when they learn that people can have enough micro/nanoplastic in their brain to make a disposable plastic spoon (2g). :)

    • magiccupcake@lemmy.world
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      It’s up to a credit card now (9g)

      Source

      • EySkibidiBabBab@feddit.dk
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        When i die i want my brain plastic to be used for a warhammer figurine!

      • President Camacho@sh.itjust.works
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        The methodology used to get that result is supposedly very questionable.

        I heard it here:

        Science Vs: Is There Really a Plastic Spoon in Our Brains?

        Not to minimize the impact of microplastics, but the credit card amount is probably way off.

        • magiccupcake@lemmy.world
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          No offenses, but I’m gonna put a lot more weight behind a peer reviewed Nature paper, rather than some random podcaster.

          The explained their methodology pretty well. They extrapolate the microplastics amount from a small bit of cortical tissue, and compared it to previous results. Yeah there might not be as much in other parts of the brain, but we don’t have a reason to think it would be drastically different.

    • Match!!@pawb.social
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      2 个月前

      the microsplastic keep my brain smooth and flexible :3

      • Romkslrqusz@lemm.ee
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        2 个月前

        Neuroplasticity

      • Wahots@pawb.social
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        This made me chuckle

  • photonic_sorcerer@lemmy.dbzer0.com
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    2 个月前

    The overall plastic mass equated to about 6 milligrams per person per year, or about a quarter of the weight of a grain of rice

    • Bigfishbest@lemmy.world
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      Multiply by nr of persons and years…

      • ilega_dh@feddit.nl
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        Yes, that is what “per person per year” means

  • Etterra@discuss.online
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    Well I don’t want my Vitamin P to be covered in bacteria.

  • timeghost@lemmy.world
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    2 个月前

    Plastic is poison.

  • 11111one11111@lemmy.world
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    Contaminating what? My septic tank that gets emptied every 10 years?

    • swampdownloader@lemmy.dbzer0.com
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      2 个月前

      Where do you think the truck that empties your tank goes?

      • 11111one11111@lemmy.world
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        No clue. Guess thats what im asking.

        • swampdownloader@lemmy.dbzer0.com
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          2 个月前

          They haul it and dispose of it in the sewer.

    • x00z@lemmy.world
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      It goes with the water that leaves your septic tank.

      A septic tank is only meant to separate the water from oils and sludge.

      • 11111one11111@lemmy.world
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        Really? So all my piss goes right thru and into my yard? If it filters out and stores solids wouldn’t it also catch the microplastics too?

        • x00z@lemmy.world
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          Depends on where you live. Mine goes trough the septic tank towards the sewer. A lot of houses also just go directly to the sewers.

          And no, many microplastics are too lightweight to settle with the solids.

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