[littlestymaar]

This is misinformation.

There are already plenty (literally hundreds) of places where the amount accumulated in the environment already exceeds safe limits (mostly in the immediate vicinity of chemical plants processing them, or fire departments which use them extensively).

You said you cared about science in the first message but you obviously don't.

[hcurtiss]

Still waiting on that study showing harmful effects due to bioaccumulation. Of course acute exposure can be harmful. The same is true of oxygen. The question is whether there are harmful bioaccumulative pathways. I’ve seen no science to support that.