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The average brain weighs 1300-1400 grams. If 0.5% of that is plastic by weight, your brain contains 6.5 - 7 grams of plastic. The average plastic credit card weighs 5 grams.

https://www.theguardian.com/environment/article/2024/aug/21/microplastics-brain-pollution-health

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[-] Nawor3565 79 points 1 year ago

Jesus christ. I really thought that headline was exaggerated, but no, the brain samples they tested actually ended up being 0.5% plastic by weight. That's seriously disturbing, I really would have thought the blood-brain barrier would do a better job of keeping plastics out.

[-] SlippiHUD@lemmy.world 50 points 1 year ago

For every kilometer you drive, your tires shed 1 trillion plastic particles. 78% of microplastics in the ocean are from tires.

[-] xkbx@startrek.website 39 points 1 year ago

What are you suggesting? That I stop peeling out of every parking lot and doing sick doughnuts!?

[-] GraniteM@lemmy.world 36 points 1 year ago* (last edited 1 year ago)

What I'm saying is that we need to figure out to make tires out of some unholy bamboo/cheese composite.

[-] UltraGiGaGigantic@lemmy.ml 15 points 1 year ago

What if the roads were rubber and the tires were asphalt?

[-] Pandantic@midwest.social 7 points 1 year ago

This was in a cartoon with the Flintstones once!

[-] SlippiHUD@lemmy.world 10 points 1 year ago

Or just go back to unvulcanized rubber

[-] Boomkop3@reddthat.com 5 points 1 year ago

But the oil products! We gotta make the oil billionaires more billions!

[-] UltraGiGaGigantic@lemmy.ml 9 points 1 year ago

10-4, rolling coal instead to impress potential sexual partners.

[-] explore_broaden@midwest.social 2 points 1 year ago

Maybe switching most of the transportation to steel tires on steel roads would help with this.

[-] paraphrand@lemmy.world 35 points 1 year ago

Neuroplasticity makes so much more sense to me now.

[-] TheDorkfromYork@lemm.ee 11 points 1 year ago

How does one become an anti plastic advocate? How do I target plastic specifically? Are some plastics better than others?

[-] WolfLink@sh.itjust.works 9 points 1 year ago* (last edited 1 year ago)

It comes from car tires, single-use plastics teflon pans, and plastic food containers. Plastic items that are meant to last a long time aren’t shedding as much.

So if you want to reduce your microplastic contributions, avoid driving, avoid single-use plastics, don’t buy non-stick pans, and use glass food containers.

[-] stillwater@lemmy.ml 4 points 1 year ago

There's also carpeting, synthetic fibers from clothing, PVC and PEX piping for water supply, paint, etc. The one that gets me is the plastic Brita filter pitcher. This thing is supposed to clean my water.

It took us decades to get to this point and it'll take us more time to back out of it. And we have to start somewhere.

[-] explore_broaden@midwest.social 1 points 1 year ago

Do PVC and PEX pipes/multiple use plastic containers (like the Brita pitcher) actually release microplastics? I’m aware of evidence that PEX pipes leach chemicals (also very bad), but I can’t find anything showing they increase microplastics.

[-] stillwater@lemmy.ml 2 points 1 year ago

Chlorinated water adversely affects PEX pipes. I don't know that the amount of microplastics or nanoplastics has been quantified in a study yet.

https://pubs.acs.org/doi/10.1021/acs.est.9b03673

The mechanical properties and lifetime of PEX were reduced after exposure to chlorinated water. (6) Prompted by concerns about the effect of chlorine dioxide on the chemical integrity of pipe materials, the pressure, tensile strength, and oxidation induction time were evaluated at constant temperature to assess the damage to pipe samples after exposure to chlorine dioxide for one year. (7) Overall, pipe aging due to long-term disinfectant exposure could cause decreased antioxidant contents; increased crystallinity; chain rupture; hydroxyl, carbonyl, and/or vinyl group production; and visible cracks in pipe walls.

Can such an aging process lead to MP and/or NP leaching into the drinking water network? On the basis of aging mechanisms and material performance characteristics, we propose that MPs and/or NPs can be leached from aging pipes.

The Brita pitcher comment is about my own growing paranoia about plastics that get scratched or cracked. I don't know the conditions and time line under which this particular formulation of plastic keeps it from shedding MPs.

[-] explore_broaden@midwest.social 1 points 1 year ago

Thanks for the information, I too am somewhat paranoid about plastics and chemicals leaching into my food/drink.

While you're at it, make sure you're reducing your energy usage so you can stop climate change. Don't worry about Shell or ExxonMobil, I'm sure they're doing their best. And if we keep politely letting them know that climate change makes us sad I'm sure they'll give up their stranglehold on energy production so we can live happier, healthier lives! /S

In case it wasn't clear, treating huge environmental problems isn't a personal responsibility thing. We need legislation, and that isn't going to happen without drastic action.

[-] floofloof@lemmy.ca 38 points 1 year ago

0.5% of our brains being plastic is pretty shocking.

[-] SlippiHUD@lemmy.world 10 points 1 year ago

Agreed. Nevermind all the other places they've found plastic pollution in our bodies.

[-] AnnaFrankfurter@lemmy.ml 25 points 1 year ago

OK but what's the limit on that card

[-] UltraGiGaGigantic@lemmy.ml 14 points 1 year ago

Mine was declined and won't come out of the ATM.

[-] DNOS@lemmy.ml 9 points 1 year ago

Now that you have told me something kinda useless tell me how much longer is my shlong due to mycroplastic 🤔😏

[-] SlippiHUD@lemmy.world 13 points 1 year ago

It's likely causing your erectile disfunction, even if it tripled it's size.

[-] UltraGiGaGigantic@lemmy.ml 7 points 1 year ago* (last edited 1 year ago)

If your erection lasts longer then 4 hours... Nice.

[-] Fleur__@lemmy.world 5 points 1 year ago

I don't think this is true

[-] scarilog@lemmy.world 2 points 1 year ago

Do you lack reading comprehension, or are you just in denial?

[-] Fleur__@lemmy.world 3 points 1 year ago

I gave the study a read. It's in preprint, it's yet to be peer reviewed and the method they used is atypical. Yeah I think disbelief is a pretty reasonable response since it's hard to imagine that much plastic wouldn't be making noticeable changes in behavior/physiology. But it's possible and the research seems rigorous

[-] scarilog@lemmy.world 1 points 1 year ago

That's a pretty reasonable take 👍

[-] SlippiHUD@lemmy.world 1 points 1 year ago

What information did I present that was untrue? I guess technically there's more plastic in your brain than required to make a plastic credit card.

Here's additional supporting research.

https://lemmy.world/comment/11941207

[-] Fleur__@lemmy.world 3 points 1 year ago

From my understanding of the study they used an unverified method on a small part of the brain to get the amount of plastic in the entire brain. Which can be misleading because if you only look at the parts of the brain that are microplastics, the brain is 100% plastic. There hasn't been widespread replication of the results yet either nor has the paper been peer reviewed.

I'm sceptical especially with the microplastic doomer narrative going around. As far as I know the danger of microplastics on the human body is yet to be determined. But it's definitely alarming I just don't think it's responsible to be saying there's a credit card in your brain.

[-] SlippiHUD@lemmy.world 1 points 1 year ago

That first paragraph is fair enough.

I'd disagree that the microplastic doomer narrative is incorrect, the plastic in the brain is just the newest tidbit. It's already in our kldneys, testicles, placentas, blood, semen, livers and lungs. Even if this study is wrong (which I don't think it is, because its on trend with plastic contamination growth in the rest of our bodies) about how much plastic there is specifically in brains, there's still easily a credit cards worth in our bodies.

Microplastics are killing worms, it is contaminating soil, it is hurting crops, it is killing fish, and studied effects of plastic on other mammals are bad, to the point it seems pointless to confirm it hurts humans in specific ways before doing something about it.

[-] geography082@lemm.ee 4 points 1 year ago

“I'm a Barbie girl in a Barbie world”….

[-] UltraGiGaGigantic@lemmy.ml 3 points 1 year ago

A plastic existence.

[-] polysics@lemmy.world 3 points 1 year ago

Don't give Elon Musk any more ideas please

this post was submitted on 23 Aug 2024
251 points (100.0% liked)

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