化学致癌物质在人类癌的发生中已愈来愈趋于重要地位。据估计,人类癌中85%到90%是由化学物质引起来的。随着科学的发展,各种新合成的化学物质,如杀虫剂、日常用品,药品、食物添加剂等,以及工业废水、废气,每天大量进入我们生活环境中,其中不少是有致癌作用的。但是,过去检测化学物质有无致癌作用,都是用动物诱癌的方法,要检测一个样品,所需动物常以千计,历时2～3年,耗费大量人 Chemical carcinogens have become more and more important in the development of human cancers. It is estimated that 85% to 90% of human cancers are caused by chemicals. With the development of science, various newly synthesized chemicals, such as pesticides, daily necessities, medicines, food additives, etc., as well as industrial waste water and waste gas enter the daily life in large quantities, many of which are carcinogenic . However, in the past, whether the detection of chemical substances had carcinogenic effects was a method of inducing cancer in animals. To test a sample, the animals required often ranged from two to three years and consumed a large number of people