If that was true, the it would be a catastrophe. PFAs tend to stay close to the point of release., they’re only good characteristic. There is very limited atmospheric deposition, and it tends to occur within a few miles of solid waste incinerators. Another limited source is organic farming, because fertilizers based on organic waste concentrate PFAs. The most intense concentrations will be found around military bases and chemical factories. For the deer to have absorbed significant quantities, there has to be one or more concentrated release points near a waterway.