In addit-ion there would be a few chromosomal defects and recessive diseases and a few congenial defects due to a single gene defect$ and chromosome aberrations. e The total incidence at equilibrium is 1100 to 27~000/year. J\ These at equilibrium,the maximum would be 0.75% or 0.15% in the first generation. . These are equivalent to 0.15% per rem at equilibrium and 0.03%/rem in the first generation. b. Based on Overall —— — Overall ill health: Ill Health — 5% - 50% of ill