Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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A Study on Reforming Threshold Quantities of Toxic Substances in Process Safety Management

PSM 제출대상 독성물질의 규정량 합리화에 대한 연구

  • 이주엽 (안전보건공단 울산지사) ;
  • 이근원 (안전보건공단 산업안전보건연구원) ;
  • 김태옥 (명지대학교 화학공학과)
  • Received : 2017.07.14
  • Accepted : 2017.08.24
  • Published : 2017.08.30
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Abstract

Process safety management(PSM) system was implemented in Korea since 1996. It helps reduce and prevent the occurrence of chemical accidents. There has been no review on the feasibility of the threshold quantities of the existing 21 species and the newly added toxic substances such as hydrogen bromide in the PSM system. The threshold quantities of the target toxic substances(25 species) of PSM were compared with domestic and foreign PSM systems similar to those of Korea. Also, we proposed the toxic harmfulness and hazard equation consisted of inhalation toxicity, NFPA index and others. According to this equation, high risk, medium risk and low risk are classified and reflected in the adjustment of threshold quantities. From the above research, It is expected to help to reduce confusion and burden of the workplaces due to the difference from other PSM system and improve in the threshold quantities.

화학사고의 발생을 감소시키고, 예방하기 위한 공정안전관리(PSM) 제도는 우리나라의 경우 1996년부터 시행되었다. 그러나 PSM 제출대상인 기존 21종 물질에 대한 규정량과 새로이 추가된 브롬화수소 등의 독성물질의 규정량에 대한 타당성 검토가 미흡하여 많은 문제점이 발생되고 있다. 본 연구에서는 25종의 PSM 제출대상독성물질의 규정량을 국내 외 공정안전관리제도와 관련된 규정량과 비교 검토하였다. 그리고 흡입독성, NFPA 지수 등으로 구성된 독성 유해 위험성 식을 제안하여 고위험, 중위험, 저위험의 3등급으로 독성물질을 분류하고, 규정량의 조정에 반영하였다. 본 연구결과의 규정량 개선안은 유사 공정안전관리제도의 규정량 차이로 인한 사업장의 혼란과 부담 완화 및 합리적 개선에 도움을 줄 것으로 기대된다.

Keywords

References

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