国外对环境致癌物的研究如果从Pott发现扫烟囱儿童以后易得阴囊癌算起已有200多年历史,如果从Cook合成苯并(α)芘算起也有50年历史;我国对环境化学致癌物的研究仅始于60年代中期。虽然与国外相比起步晚得多,并且由于种种技术条件 Foreign studies on environmental carcinogens have been more than 200 years old since Pott discovered that chimney sweepers are susceptible to scrotal cancer. If Cook counts up benzo(α) peptone, it has a history of more than 50 years. China’s environmental chemical carcinogens The study only began in the mid-1960s. Although starting much later compared to foreign countries and due to various technical conditions