Kiviluoto M
Br J Ind Med. 1980 Nov;37(4):363-6. doi: 10.1136/oem.37.4.363.
Out of a total of 79 employees at a factory making vanadium pentoxide from magnetite ore 63 were investigated by respiratory questionnaire, chest radiography, and tests of ventilatory function. The findings were compared with a reference group of 63 men, matched for age (to within two years) and for smoking habit (to within five cigarettes daily) selected from workers at a magnetite ore mine. Analysis of the ventilation tests showed no significant differences between the reference group and the men exposed to low concentrations of vanadium (0.01--0.04 mg/m3), despite previous exposure for an average of 11 years to concentrations in the range of 0.1 to 3.9 mg/m3. Complaint of wheezing was significantly more common among the workers exposed to vanadium than among their referents, but there were no other subjective differences between the groups. Localized fibrotic foci were reported in the radiographs of four reference cases and two men exposed to vanadium, but there were no cases of pneumoconiosis in either group.
在一家用磁铁矿矿石生产五氧化二钒的工厂的79名员工中，63人接受了呼吸问卷、胸部X光检查和通气功能测试。研究结果与一组63名男性的参照组进行了比较，该参照组在年龄（相差两年以内）和吸烟习惯（每天相差五支烟以内）方面与从磁铁矿矿山工人中挑选出来的人相匹配。通气测试分析表明，参照组与接触低浓度钒（0.01--0.04毫克/立方米）的男性之间没有显著差异，尽管他们此前平均有11年接触的浓度范围在0.1至3.9毫克/立方米之间。接触钒的工人中喘息症状的主诉明显比其参照对象更为常见，但两组之间在其他主观症状方面并无差异。在4例参照对象和2名接触钒的男性的X光片中报告有局部纤维化病灶，但两组均无尘肺病病例。
