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Acute Hydrogen Cyanide Poisoning in a Plating Worker and Workplace Measurement

도금 사업장 근로자에게 발생한 시안화수소 급성중독과 작업환경평가

  • Ham, Seunghon (Department of Occupational and Environmental Medicine, Gil Medical Center, College of Medicine, Gachon University) ;
  • Choi, Won-Jun (Department of Occupational and Environmental Medicine, Gil Medical Center, College of Medicine, Gachon University) ;
  • Lee, Junhyung (Department of Occupational and Environmental Medicine, Gil Medical Center, College of Medicine, Gachon University) ;
  • Lim, Yong su (Department of Emergency Medicine, Gil Medical Center, College of Medicine, Gachon University) ;
  • Kang, Jihyun (Department of Occupational and Environmental Medicine, Gil Medical Center, College of Medicine, Gachon University) ;
  • Kang, Seong-Kyu (Department of Occupational and Environmental Medicine, Gil Medical Center, College of Medicine, Gachon University)
  • 함승헌 (가천대학교 의과대학 길병원 직업환경의학과) ;
  • 최원준 (가천대학교 의과대학 길병원 직업환경의학과) ;
  • 이준형 (가천대학교 의과대학 길병원 직업환경의학과) ;
  • 임용수 (가천대학교 의과대학 길병원 응급의학과) ;
  • 강지현 (가천대학교 의과대학 길병원 직업환경의학과) ;
  • 강성규 (가천대학교 의과대학 길병원 직업환경의학과)
  • Received : 2019.08.20
  • Accepted : 2019.09.24
  • Published : 2019.09.30

Abstract

Introduction: An unexpected death was reported in a beginner immediately after starting the work at a plating factory. After the incident, air sampling was performed using a simulation of the situation as it had been at the time. Methods: To evaluate the airborne concentration of hydrogen cyanide, a total of six samples were collected: one personal sample, three area samples, and two background samples (office and outdoors). Hydrogen cyanide measurement was performed according to the standard sampling protocol recommended by the U.S. NIOSH (National Institute of Occupational Safety and Health). Results: The highest concentration of hydrogen cyanide was 0.938 ppm measured in a sample collected from the plating bath area with local exhaust ventilation. This value was approximately 20% of the ceiling occupational exposure limit. The personal sample showed a concentration of 0.135 ppm. Samples collected near the bath in which the incident occurred and a dehydrator showed hydrogen cyanide concentrations of 0.236 ppm and 0.101 ppm, respectively. Hydrogen cyanide was not detected in the background samples (office and outdoors). Conclusions: It is necessary to use proper ventilation systems and respirators in plating factories to prevent acute poisoning. Furthermore, it is important to educate and train new workers dealing with toxic substances.

Acknowledgement

Supported by : 산업안전보건연구원

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