经研究,长期从事家庭炊事劳动而接触烧煤、液化石油气、木柴废气的调查居民,其浓缩尿样的致突变率分别为90.9％、82.6％、30.8％,且主要是对TA98起致突变作用。从三种燃料燃烧的废气所诱导居民外周血红细胞的微核率差异,经统计分析无显著性,在用燃烧的液化石油气废气给小白鼠经呼吸道动式染毒的亚慢性试验中,用肺组织匀浆作Ames和骨髓嗜多染红细胞微核试验,其所得的结果表明该废气具有明显的致突变作用。 According to the research, the mutagenic rates of concentrated urine sample of residents surveyed who engaged in cooking work for a long period of time and exposed coal, liquefied petroleum gas and firewood exhaust were 90.9%, 82.6% and 30.8%, respectively, and mainly caused mutations in TA98 effect. From the three kinds of fuel-burned exhaust induced by residents of peripheral erythrocytes micronucleus rate differences, the statistical analysis was not significant in the burning of liquefied petroleum gas to the mice by the respiratory tract dynamic sub-chronic toxicity test with Pulmonary tissue homogenate for Ames and bone marrow polychromatic erythrocyte micronucleus test, the results obtained show that the exhaust gas has a significant mutagenic effect.