职业性癌,是指在从事的职业环境中接触某种致癌物质,从而使从事该项职业的人,在一定的条件下易罹患某种癌症。如从事石棉、耐火材料、绝缘材料等生产作业的工人,因长期接触石棉粉尘,易患肺癌或胸膜间皮瘤;冶金、电镀、制革、染料等工厂的工人,因长期接触高毒性的六价铬化物,也易患肺癌;长期大量接触氯乙烯的工人,可能发生肝血管肉瘤、淋巴造血系统肿 Occupational cancer refers to exposure to a carcinogen in a working environment so that a person engaged in that occupation may easily develop certain types of cancer under certain conditions. Workers engaged in manufacturing operations such as asbestos, refractory materials and insulating materials are susceptible to lung cancer or pleural mesothelioma due to long-term exposure to asbestos dust. Workers in factories such as metallurgy, electroplating, leather tanning and dyes have long-term exposure to highly toxic hexa- Chromium prices, but also susceptible to lung cancer; long-term exposure to vinyl chloride workers may occur hepatic angiosarcoma, lymphatic hematopoietic system