The micronucleus ratio in common Uigur population (100 individual samples ) was investigated referring to the Survey Methods of Micronucleus Ratio in human-body-end blood Cells which was introduced by Dr Xue Kai-xian There were twenty-seven micronuclei in 200

000 lymphocyles of hody-end blood and the ratio was 0. 14‰

The ranges of the ratios in different age groups were from 0 to 1‰ and so were among the different sex groups There were no significant differences of the average ratios among those groups (μ=0. 5

P>0.05). ; =The result indicatse that the micronucleus ratio is an available index for the srvey of health in Uigur population it will be potentially applied in the rescarch of medicine

environment. carcinogens and netics.