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近年来国内外均认为肿瘤是一种对人民生命威胁较为严重的常见病。各种肿瘤死亡率逐年明显增加,尤其是城市、厂矿,每年因恶性肿瘤死亡者常居首位。为了摸清恶性肿瘤与职业接触的关系,我们选择从事金属砷与氧化锌生产的工厂(简称甲厂,因金属砷与氧化锌二车间,相距只有50m,而且工人轮换从事砷与氧化锌的生产,都接触砷,故一并列为调查对
In recent years, both at home and abroad think that cancer is a common disease which is more serious to people’s life. Various types of cancer mortality increased significantly year by year, especially in cities, factories and mines, and the number of deaths due to malignant tumors ranks the first place each year. In order to find out the relationship between malignancies and occupational exposure, we chose to engage in the production of metal arsenic and zinc oxide (abbreviated as arsenic, because the metal arsenic and zinc oxide two workshop, only 50m apart, and workers in the rotation of arsenic and zinc oxide production , Are exposed to arsenic, it is also listed as a survey