51.   The pond can only be reached by passing through locked gates, past signs warning of the risks of radiation exposure.

52.   The study linked on-the-job radiation exposure to excessive cancer deaths among workers at the Santa Susana Field Laboratory.

53.   The samples, which ultimately showed no radiation exposure, were completed only after the workers demanded written confirmation of the results.

54.   The survey found that the practice was common, possibly because it reduces radiation exposure for plant workers.

55.   The work he did there described the likelihood of survival under varying degrees of radiation exposure and its effects on the nervous system and brain.

56.   They say storing radioactive material on-site would reduce radiation exposure to plant workers.

57.   When blood tests showed that he had a reduced white blood cell count, a possible reaction to radiation exposure, he really worried.

58.   Worker radiation exposure, the volume of radioactive waste produced and the rate of industrial accidents are all also generally down.

59.   Worker radiation exposure.

60.   Potassium iodide, chemical symbol KI, is the only medication for internal radiation exposure.