The exposure happened at the Idaho National Laboratory . There is no evidence of a leak outside the facility and there is no risk to the public or environment , it added . Workers were exposed to low-level radiation from plutonium , the lab says . Comment: There is no risk to the public or environment , the lab says .
The exposure happened at the Idaho National Laboratory . Workers were exposed to low-level radiation from plutonium , the lab says . Comment: There is no risk to the public or environment , the lab says .