Jones Beene <[email protected]> wrote:
> BTW - Radon/radium was once considered healthy. Radium spas and hot springs > were popular - and exposure was said to cure cancer instead of cause it. They still are in Japan. Prof. Ikegami once brought me to one. He said a small exposure is good for you. He also said they did extensive tests in their lab, exposing rats and fish to tritium at levels well above those allowed for humans. They found no problems at all. Many of the standards seem somewhat arbitrary. They pick round numbers. The Japanese government abruptly raised several of the allowed exposure levels after Fukushima. If they hadn't, they would have to abandon an even larger area. I believe ~90,000 people have evacuated, more or less permanently. For 30 years, anyway. - Jed
