Originally Posted by Mxfrank

PFA's are absolutely a human-caused problem, as these chemicals aren't produced by any natural process. The biggest polluters are the military and firefighters, because the most prolific use was in fire fighting foam. This is a particularly interesting toxin, because it's actually non-toxic, but exposure is cumulative and it kills your internal organs by volume. In the human body, the half life of the more common PFAs is seven years. So if you're dosed, you're pretty much dosed for life. Your personal dose grows over time, because this stuff is everywhere. Pretty much all of us have some level of PFA in our bloodstreams, and we're never rid of it.


The fact that it's in deer means it's in the water supply, so hopefully they're investigating that.