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도금 사업장 근로자에게 발생한 시안화수소 급성중독과 작업환경평가

Acute Hydrogen Cyanide Poisoning in a Plating Worker and Workplace Measurement

한국산업보건학회지 2019년 29권 3호 p.336 ~ 342
함승헌 ( Ham Seung-Hon ) - 가천대학교 의과대학 길병원 직업환경의학과

최원준 ( Choi Won-Jun ) - 가천대학교 의과대학 길병원 직업환경의학과
이준형 ( Lee Jun-Hyung ) - 가천대학교 의과대학 길병원 직업환경의학과
임용수 ( Lim Yong-Su ) - 가천대학교 의과대학 길병원 응급의학과
강지현 ( Kang Ji-Hyun ) - 가천대학교 의과대학 길병원 직업환경의학과
 ( Kang Seong-Kyu ) - 가천대학교 의과대학 길병원 직업환경의학과

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.

키워드

Hydrogen cyanide; acute poisoning; plating industry; short term exposure limit
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