Nearly nothing, in other words... not that it matters anyway, because it's all practically inert. Perhaps they will serve as evidence to future historians of an era of progress before radical misguided environmentalism took over and plunged civilisation into another dark age.
To think environmentalism will cause it. I mean if it happens, environmentalism will be a small factor.
Of all the things to cause global dark age, cmon. You’re reaching.
which concentration is that?
EDIT: Should have searched. https://www.cancerresearchuk.org/about-cancer/what-is-cancer...
It checks out that a single unchecked self-reproducing cell could rapidly create a lot of them. I just thought there'd be control mechanisms to cause other cells to attack them.
But it is realistic apparently! Welp!
May I remind you of the toxological properties of e.g. polyethylene, the world's most widely-used plastic:
And just adding fluorine to something does NOT make it a PFAS! PFAS is a very specific chemical, not everything with chlorine or fluorine is a PFAS.
Additionally they are very very rare (only used where the chemical can't be contained in simpler plastics), and are not really where your attention should be on the hazards of plastics.
If those are a "serious threat", then I wonder what they think of petroleum jelly... which is basically the same structure with much shorter chains, and is even more reactive!
How much chemistry knowledge some of these fearmongers have is highly dubious.
As a rule of thumb, a tenth of empirically demonstrable toxicity. That's a good basis for thresholds, both legal and medicinal.
This is such an over-the-top strawman, it doesn't even warrant a serious response.