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虽然有许多文章评价火力发电厂对周围环境的危害，但是很少关于直接接触粉尘、高温、噪声、毒物等有害因素对电厂职工健康影响的报道，为了查明这些因素对电厂职工死亡率和肿瘤死亡率有没有影响，我们对某热电厂进行了１０年回顾性队列调查研究，结果１６２４人组成的队列，１０年提供１５４１３．７３人年，死亡５２人，其中１６人死于恶性肿瘤，队列全死因死亡率稍低于本市居民人口（ＳＭＲ＝０．７８，９５％可信限０．５６～０．９９）（健康工人效应）。实际肿瘤死亡人数与按本市居民肿瘤死亡率计算的预期死亡人数比较未见明显差异（ＳＭＲ＝０．９８，９５％可信限０．５６～１．６０）。然而比较电厂内部各组ＳＭＲ，发现锅炉最高，“机、炉、电、热”次之，不接尘组第三，行政第四，接尘组最低，提示电厂粉尘危害与高温、噪声、电磁场、职业紧张等危害因素有联合作用。可能会影响恶性肿瘤死亡率。
Although there are many articles evaluating the impact of thermal power plants on the surrounding environment, there are few reports of direct contact with harmful factors such as dust, high temperature, noise, and poisons on the health of the plant’s employees, in order to identify these factors in the plant worker mortality and cancer. The mortality rate has no effect. We conducted a retrospective cohort study on a thermal power plant for 10 years. The result was a cohort of 1624 people. It provided 15413.73 person-years in 10 years and 52 people died. Of these, 16 died of malignant tumors. The cause of death was slightly lower than the city’s population (SMR=0.78, 95% confidence limit 0.56 to 0.99) (health worker effect). There was no significant difference between the actual number of cancer deaths and the expected number of deaths calculated according to the city’s residents’ tumor mortality (SMR=0.98, 95% confidence limit 0.56 to 1.60). However, comparing the SMRs within the power plants, it was found that the boilers were the highest, followed by “machines, furnaces, electricity, and heat”. The dust-free group was the third, the administration was the fourth, and the dust-shielding group was the lowest, prompting the power plant dust hazards and high temperature, noise, and electromagnetic fields. Occupational stress and other harmful factors have a joint effect. It may affect the mortality of malignant tumors.