| Abstract ---Chronic radiation syndrome 
              is based upon victims who were exposed to radiation for at least 
              3 years and who had received at least 100 rem or more to the marrow. 
              The report reconfirms the International Commission on Radiological 
              Protection (ICRP) recommendation that the maximum value of the dose 
              constraint to be used in the optimization of radiological protection 
              for a single source should be less than l mSv in a year, and that 
              a value of no more than about 0.3 mSv in a year would be appropriate. 
              Chronic exposure of radiation, who developed chronic radiation sickness, 
              leukopenia, thrombocytopenia and inhibition of non-specific immunity 
              factors, slight increase in nodule prevalence and thyroid antibody-positive 
              subjects, increased frequency of chromosomal aberrations (both stable 
              and unstable types) and CD3 – CD4+ mutant T-lymphocytes in the peripheral 
              blood. Studies show that radioactivity from nuclear plants is getting 
              into the environment and human body, and there is now strong evidence 
              that it is hurting the health of Americans. There is now substantial 
              evidence that exposure to radioactive releases from nuclear reactors 
              is a significant causal factor of increasing childhood cancer rates 
              and of other adverse health effects. |