摘要
我们于１９９３年冬、春季在石家庄市５个大气质量监测点采集了１００份空气悬浮颗粒标本，用抗突变／致突变试验同步法检测其抗突变或致突变作用。各监测点在冬、春季均检出直接和间接致突变作用，未发现抗突变作用。同一季节各监测点的致突变阳性检出率不同，但无显著性差异，污染区和清洁区的致突变阳性检出率也无显著性差异。但污染区在污染较重的冬季的致突变阳性检出率比春季的阳性检出率高（４２．５％比２０％），有显著统计学意义（Ｘ２＝４．７１，Ｐ＜０．０５），这一结果提示空气颗粒致突变性的大小与空气污染程度相关。
One hundrcd samples of fallout particle in the ambient air which were collected at 5 monitoring sites from the Shijiazhuang City in winter and spring of l993 were tested by Synchronous Mutation and Anti-mutation High-speed Test to study their mutagenicity and antimutagenicity.Both direct and indirect mutagenicity were detectcd at every sample during winter and Spring,while no antimutagenicity was found.AIthough the positivc rate of mutation at every site in the same season was various,there is no significant difference among them. There is also no significant difference among them. There is also no significant difference between the positive rate of polluted area and that ofthe clean area. Nevertheless,the positive rate of mutation in winter is higherthan that in spring(42.5%,20%)significantly(x2=4.71,P<0.05). This indicates that the mutagenicity of the particles in the air is related to the degree of pollution.
出处
《癌变·畸变·突变》
CAS
CSCD
1994年第6期41-44,共4页
Carcinogenesis,Teratogenesis & Mutagenesis
关键词
空气
悬浮颗粒
致突变作用
环境污染
suspending particles in the air
mutagenicity
antimutagenicity
Synchronous mutation and anti-mutation test
