Marek K, Kujawska A, Zajusz K, Romaniec B, Sonecka F, Stachura A, Zyłka-Włoszczyk M
Med Pr. 1979;30(1):21-9.
Studies were carried out in 4 groups of workers occupationally exposed to cadmium, tungsten, manganese and lead. All those groups were homogeneous, composed exclusively of men aged 35--45, of similar height, body weight, and duration of employment above 10 years. Following the same criteria, a group of forestry workers, unexposed to dust, was randomly selected. The smoking habit was similar in all groups. Several--days--clinical observation included a detailed interview (MRC questionnaire), physical and radiological examination and a wide range of functional tests of lungs. The results reveal clinical and physiopathological symptoms which might be indicative of emphysema. The results of some studies also indicate the possibility of intraparenchymatous fibrosis of lungs in the tungsten--exposed--workers. No clear effects upon the respiratory system were found.
对4组职业接触镉、钨、锰和铅的工人进行了研究。所有这些组情况均一，仅由年龄在35至45岁之间、身高、体重相似且工作年限超过10年的男性组成。按照相同标准，随机挑选了一组未接触粉尘的林业工人。所有组的吸烟习惯相似。为期数天的临床观察包括详细访谈（医学研究委员会问卷）、体格检查和放射检查以及一系列广泛的肺功能测试。结果显示出可能提示肺气肿的临床和生理病理症状。一些研究结果还表明，接触钨的工人肺部可能存在实质内纤维化。未发现对呼吸系统有明显影响。
