The investigation on hereditary disease and congenital malformation

on the children below eleven years old and living in the surrounding area of the nuclear test site and control area is reported. The total prevalence rate of the ninteen kinds of hereditary disease and congenital malformation in both areas are 7.12‰ and 7.28‰

respectively. The prevalence rate of congenital foolishness in investigagion area is 0.64‰; while in control area

it is 0.54‰. There is no significant difference between the two areas. However

it is found that the prevalence rate of harelip in investigation area is higher than in control area

whereas the prevalence rate of congenital heart disease in control area is higher than in investigation area. As for the rests there is no significant difference. There is no significant difference between the two areas. So we have not observed that nuclear test in our country can cause hereditary disease and congenital malformation for the children who live in surrounding area

of the nuclear test site.