Not sure if it's public knowledge in the US or not, but thought I'd share something from my military time in Germany..
I got my German hunting license while stationed there and was lucky enough to meet up with a guy that let me lease some land in the Black Forrest. I got to shoot red deer, roe/reh deer, ducks, and... a boar. What I didn't know was that many of the boar are radioactive. When Chernobyl went off it deposited cesium-137 in the soil. This gets into the roots, shrooms, etc the pigs eat and gets into the meat. So whenever you shoot a pig you have to take 1kg of meat to a tester and they will measure the radioactivity.. if the meat tests over a certain level, the pig is destroyed.. Of course the one I shot was just over the limit..