Elevated levels of radon in homes has been recognized as a potential public health threat since the mid-1980’s. when Stanley Watras, a worker at the Limerick Nuclear Power Plant located in eastern Pennsylvania, set off a radiation detector upon entering the nuclear power plant. The year was 1984 ... 37 years ago. How much justification do we need?
"To see what is in front of one's nose needs a constant struggle."... George Orwell. 更多
