I've been out of the loop but the last I read about PFAs was "They accumulate, we don't know if they're toxic or at what dose". That appears to have changed.

I've been out of the loop but the last I read about PFAs was "They accumulate, we don't know if they're toxic or at what dose". That appears to have changed. Once upon a time CSPINet was good for info like this, but I haven't found any details yet.