Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Risk Analysis of Off-site Risk Assessment using Vulnerability by Environmental Medium

환경매체별 취약성을 반영한 장외영향평가 위험도 분석

  • Choi, Woo Soo (Division of Accident Prevention and Assessment, National Institute of Chemical Safety) ;
  • Back, Jong Bae (Department of Safety Engineering, Korea National University of Transportation)
  • 최우수 (화학물질안전원 사고예방심사1과) ;
  • 백종배 (한국교통대학교 안전공학과)
  • Received : 2018.09.07
  • Accepted : 2018.10.03
  • Published : 2018.10.31
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Abstract

As the types and usage of chemical increase, modern countries should protect their health and environment from the risk of hazardous chemical. Chemical accidents not only affect humans but also cause huge losses to the environment. Moreover, since its effects do not end in a short period of time, it is necessary to identify the extent of the damage and establish a prevention and response system in advance. In 2015, the Chemical Substances Management Act provided a system for assessing the impact on the people and the environment around the workplace. However, it is difficult to quantitatively evaluate the impact on environmental factors such as vegetation and aquatic, with the current hazard assessment methods. The purpose of this study is to analyze the quantitative risk of environmental receptors. This study improved the existing risk assessment formula by using the environmental vulnerability index and established the end point concentration criterion which can estimate the damage range to environmental media. To verify the results of the study, a virtual accident scenario was selected and a case study was conducted. As a result, the extent of impact on the environmental medium can be calculated, and the degree of environmental risk of the zone can be quantified through the risk analysis considering the environmental vulnerability. This study is expected to increase the reliability of the reliability of the existing risk anaylsis method beacause it is a risk analysis method that can be applied when the environmental factors are absolutely necessary and when the residents and environment are complex.

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