Rencher A C, Carter M W, Mckee D W
Am Ind Hyg Assoc J. 1979 Aug;40(8):695-701. doi: 10.1080/15298667991430172.
Smelter workers were compared with employees at the mine, concentrator and refinery in an attempt to discover if the smelter environment has an effect on morbidity. The data for the study consisted of weekly indemnity insurance claim forms. It was found that the refinery, rather than the smelter, had the highest percent of employees submitting claims. Other major comparisons of morbidity among the four plants also showed the refinery to be highest, with the smelter closer to the mine and concentrator. This pattern was found to hold for respiratory disease classifications as well as overall morbidity levels.
为了探究冶炼厂环境是否对发病率有影响，研究人员将冶炼厂工人与矿山、选矿厂和精炼厂的员工进行了比较。该研究的数据由每周的工伤保险索赔表组成。结果发现，提出索赔的员工比例最高的是精炼厂，而非冶炼厂。这四家工厂之间发病率的其他主要比较也显示，精炼厂的发病率最高，冶炼厂的发病率更接近矿山和选矿厂。这种模式在呼吸道疾病分类以及总体发病率水平方面均成立。
