Actually at that level chronic radiation a positive. Long term research on a large group of people in Taiwan living in somewhat radioactive buildings showed significantly lower cancer rates than the populace a whole. http://toshuo.com/2009/chronic-low-level-radiation-good-for-...
http://metropolis.co.jp/features/feature/searching-for-a-cur...
I wouldn't go to it... I think It's crazy. There's probably a good opportunity for research.