近年来,因工业集中,城市生活和生产过程向大气排出的致癌物质较多。流行病学调查结果表明,大气污染与肺癌发病有一定的关系。空气总悬浮颗粒物(TSP)是大气主要的污染物之一。大气TSP中含有三百多种有机物,其中不少是已知人或动物的致癌或致突变物。1977年,Talcott等用Ames试验发现,大气颗粒物具有不需S_9活 In recent years, due to industrial concentration, urban life and the production process to the atmosphere more carcinogens. Epidemiological survey results show that air pollution and lung cancer have a certain relationship. Total airborne particulate matter (TSP) is one of the major pollutants in the atmosphere. Atmospheric TSP contains more than 300 kinds of organic matter, many of which are known to be carcinogenic or mutagenic in animals or animals. In 1977, Talcott and other Ames test found that atmospheric particulate matter without S9 live