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对大厂和栗木锡矿1972～1974年的在册职工7849人进行了历史前瞻性队列研究;并通过多种监测手段对环境有害因子进行了监测。结果表明,锡矿全死因死亡率为632.7/10万,与全国居民死亡率计算的期望数比较,SMR=1.11(95％CI为1.03～1.19),恶性肿瘤死亡为全死因之首(占39.3％),其次是脑血管疾病和心脏病。恶性肿瘤死亡明显超高(SMR=1.56),且主要集中在肺癌、肝癌和鼻咽癌,其中肺癌占首位(32.1％),SMR为1.98,肝癌和鼻咽癌的SMR为1.79和3.71。监测结果进一步表明,大厂矿肺癌超高与接尘水平及其可吸入砷浓度的高低有明显的联系。
A historical prospective cohort study was conducted on 7849 registered workers from 1972 to 1974 in Dachang and Li Mu Tin mines. The environmental harmful factors were monitored through various monitoring methods. The results showed that the all-cause death rate of tin mine was 632.7 / 100 000, with SMR = 1.11 (95% CI: 1.03-1.19) compared with the national average expected mortality rate. Malignant tumor death was the highest among all causes of death %), Followed by cerebrovascular disease and heart disease. The death rate of malignant tumor was significantly higher (SMR = 1.56), and mainly concentrated in lung cancer, liver cancer and nasopharyngeal cancer, with lung cancer accounting for the highest (32.1%), SMR 1.98 and SMR 1.79 and 3.71 for liver cancer and nasopharyngeal cancer. The monitoring results further show that Dachang mine lung cancer is extremely high and dust levels and levels of inhaled arsenic significantly related.