용접흄 폭로 근로자들의 폐기능에 관한 연구

Study on the Pulmonary Function in Welding Fume Exposed Workers

  • 홍영습 (동아대학교 의과대학 예방의학교실 및 산업의학연구소, 동아의료원 건강관리과) ;
  • 김병권 (동아대학교 의과대학 예방의학교실 및 산업의학연구소, 동아의료원 건강관리과) ;
  • 김성률 (동아대학교 의과대학 예방의학교실 및 산업의학연구소, 동아의료원 건강관리과) ;
  • 담도온 (동아대학교 의과대학 예방의학교실 및 산업의학연구소, 동아의료원 건강관리과) ;
  • 김정만 (동아대학교 의과대학 예방의학교실 및 산업의학연구소, 동아의료원 건강관리과) ;
  • 정갑열 (동아대학교 의과대학 예방의학교실 및 산업의학연구소, 동아의료원 건강관리과) ;
  • 김준연 (동아대학교 의과대학 예방의학교실 및 산업의학연구소, 동아의료원 건강관리과)
  • Hong, Young-Seoub (Department of Preventive Medicine and Industrial Medicine Research Institute, College of Medicine, Dong-A University, Department of Health Care, Dong-A Medical Center) ;
  • Kim, Byoung-Gwon (Department of Preventive Medicine and Industrial Medicine Research Institute, College of Medicine, Dong-A University, Department of Health Care, Dong-A Medical Center) ;
  • Kim, Sung-Ryul (Department of Preventive Medicine and Industrial Medicine Research Institute, College of Medicine, Dong-A University, Department of Health Care, Dong-A Medical Center) ;
  • Dam, Do-Won (Department of Preventive Medicine and Industrial Medicine Research Institute, College of Medicine, Dong-A University, Department of Health Care, Dong-A Medical Center) ;
  • Kim, Jung-Man (Department of Preventive Medicine and Industrial Medicine Research Institute, College of Medicine, Dong-A University, Department of Health Care, Dong-A Medical Center) ;
  • Jung, Kap-Yull (Department of Preventive Medicine and Industrial Medicine Research Institute, College of Medicine, Dong-A University, Department of Health Care, Dong-A Medical Center) ;
  • Kim, Joon-Youn (Department of Preventive Medicine and Industrial Medicine Research Institute, College of Medicine, Dong-A University, Department of Health Care, Dong-A Medical Center)
  • 발행 : 1995.03.01

초록

In order to study the effect of welding fume exposure upon the pulmonary function test, we examined 131 shielded arc welding workers, and 152 $CO_2$ arc welding workers as cases and 177 control workers for their general characteristics, and forced vital capacity (FVC), forced expiratory volume in one second $(FEV_{1.0})$, forced expiratory volume in one second as a percent of FVC $(FEV_{1.0}%)$, and maximal mid-expiratory flow (MMF) were obtained from the spirogram. In shielded arc welding group and $CO_2$ arc welding group, FVC, $FEV_{1.0},\;FEV_{1.0}%$, and MMF were significantly decreased than control group, especially marked in the MMF finding. The distribution of workers below normal range was as follows. in the shielded arc welding group, 2 workers(1.5%) for FVC, 17 workers(13.0%) for $FEV_{1.0}$, 5 workers(3.8%) for $FEV_{1.0}%$, 28 workers(21.4%) for MMF, and in the $CO_2$ arc welding group, 3 workers(2.0%) for FVC, 25 workers(16.4%) for $FEV_{1.0}$, 8 workers(5.3%) for $FEV_{1.0}%$, and 37 workers(24.3%) for MMF, and significant increase by exposure duration was found in MMF. The distribution of workers who had ventilation impairment was as follows: 5 workers(3.8%) for obstructive type, 2 workers(1.5%) for restrictive type in the shielded arc welding group, and 7 workers(4.6%) for obstructive type, 2 workers(1.3%) for restrictive type, and 1 worker(0.6%) was combined type of the $CO_2$ arc welding group. In the respect of these results, the significant pulmonary function and ventilatory impairment were observed in welding fume exposed workers who had not abnormal finding in chest X-ray, and MMF considered as the most sensitive pulmonary function index by welding fume exposure. Therefore even if it is hard to doing pulmonary function test in the first health examination of workers according to the Industrial Safety Health Act in the welding fume exposure workers, it is desirable to consider doing PFT. Also evaluating the ventilation impairment, it is necessary, to observe the change of MMF that marker of effort-independent portion.

키워드