title: Radiation-induced chromosome aberrations in nuclear-dockyard workers.
abstract: The incidence of chromosome aberrations in peripheral blood lymphocytes of 197 dockyard workers has been followed over a 10-yr period. These workers were exposed to mixed neutron-gamma radiation during the refuelling of nuclear reactors, but most exposures were below the internationally accepted maximum permissible level of 5 rem per yr. There was a significant increase in chromosome damage with increasing exposure; aberration frequency was a linear function of dose and was unfluenced by age and time of blood sampling after exposure.
mesh_terms: D000367:Age Factors; D002869:Chromosome Aberrations; D004307:Dose-Response Relationship, Radiation; D006801:Humans; D008214:Lymphocytes / Q000528:radiation effects*; D008452:Maximum Allowable Concentration; D009688:Nuclear Reactors; D009784:Occupational Diseases / Q000209:etiology