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