[smsm42]

> Mice are not human but as this is a basic physiology issue it is very highly likely that they also bioaccumulate in humans

That would be rather easy to check - take a bunch of dead humans who likely consumed a lot of bottled water (i.e. pretty much any urban dweller) and check them for microplastics in certain organs. Has this kind of research already been done and if not, why not?

Also, "piece smaller than 5mm" can be a huge 4mm chunk of plastic or one molecule. Depending on that, the average of 325 particles per liter could be enormous or completely insignificant.

[idDriven]

Right? If you could just do a national sampling as part of routine autopsies or something it would give so much valuable data. Sadly there is a lot of politics and money even in scientific research now. I would really value this data, I don't know who would fund it though if not the government, likely not Nestle or a corporation with great sales of bottled water. Also please see my reply earlier in thread Smithsonian article shakes head in sadness said mm for particulate size when it should be 1000x smaller.