As I understand it, the reason you'd want to communicate that a radioactive waste dump is harmful is because of the very slow feedback loop that it causes. It w

As I understand it, the reason you'd want to communicate that a radioactive waste dump is harmful is because of the very slow feedback loop that it causes. It would take people a long time, and many deaths/mutations to figure out that such an area is harmful; the signal has a very long wavelength, and could easily get lost in noise. It's easy to attribute that harm to other things, much like how many cultures didn't know about lead poisoning, even though it was happening all around them. I think a simple solution would be to dramatically increase the feedback loop, by putting nerve gas or landmines or other fast acting dangers in the area. It would very quickly be understood to be a "cursed" and dangerous place, and after very few deaths, people wouldn't go there anymore.