Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Impact Zone of Quantitative Risk Assessment based on Accident Scenarios by Meteorological Factors

기상요소별 사고 시나리오에 따른 정량적 위험성평가 피해영향범위 분석

  • 김현섭 (시흥화학재난합동방재센터) ;
  • 전병한 ((주)원일화학엔환경)
  • Received : 2017.07.28
  • Accepted : 2017.12.14
  • Published : 2017.12.31
⟨ Previous Next ⟩

Abstract

Using ALOHA and PHAST Program, it was modeled assuming the leakage accident scenarios of chlorine which is designated as accident preparation chemical in chemical control act. End-point distances corresponding to ERPG-2 concentrations were calculated while varying annual mean temperature, wind speed, humidity, and atmospheric stability. The calculated endpoint distance values were compared and the correlation with each meteorological factor was analyzed. And we also investigated strengths and weaknesses of ALOHA and PHAST. The results show that ALOHA has little or no correlation with annual average temperature, humidity and it has a large correlation with wind speed and atmospheric stability. In the case of PHAST, the end-point distances were correlated with all the meteorological factors such as average annual temperature, wind speed, humidity, and atmospheric stability, Among them, the effect of atmospheric stability were the largest.

장외영향평가의 정량적 위험성평가에 사용되는 ALOHA와 PHAST 프로그램으로 화학물질관리법상 사고대비물질로 지정하고 있는 염소의 누출 사고 시나리오를 가정하여 모델링 하였다. 연평균 기온, 풍속, 습도, 대기안정도를 변화시키면서 ERPG-2 농도에 해당하는 끝점거리를 산출하였으며, 산출된 끝점거리 값을 비교하여 각각의 기상요소와 끝점거리 간의 상관관계와 ALOHA와 PHAST의 장단점 분석하였다. 연구결과 ALOHA는 연평균 기온과 습도와의 상관관계는 없거나 작고, 풍속과 대기안정도와의 상관관계가 큰 것으로 조사되었다. PHAST의 경우 연평균 기온, 풍속, 습도, 대기안정도 모든 기상요소와의 상관관계가 있었으며, 그 중 대기안정도의 영향을 가장 크게 받는 것으로 조사되었다.

Keywords

References

  1. Kwon, H.-S., Sohn, Y.-D., Ahn, H.-C. and Ahn, J.-Y., "A one-year Follow-up Study of Patients Exposed to Chlorine Gas," J. Korean Soc. Clinical Toxicol., 6(2), 99-103(2008).
  2. Cho, K.-H., Kim, S.-H., Cho, Y.-S., Lee, H.-S. and Park, J.-S., "Reactive Airways Dysfunction Syndrome (RADS) from Chlorine Gas Releasing Cleaning Agents," J. Korean Soc. Clinical Toxicol., 3(1), 60-62(2005).
  3. National Institute of Chemical Safety, "Chemical Emissions Survey Results Report in 2014," National Institute of Chemical Safety(2014).
  4. Ministry of Environment, "Chemical Control Act," Ministry of Environment(2016).
  5. Kim, J.-H. and Jung, S.-H., "Offsite Consequence Modeling for Evacuation Distances against Accidental Hydrogen Fluoride (HF) Release Scenarios," Korean Chem. Eng. Res., 54(4), 582-585(2016). https://doi.org/10.9713/kcer.2016.54.4.582
  6. Park, S.-W. and Jung, S.-H., "Recommended Evacuation Distance for Offsite Risk Assessment of Ammonia Release Scenarios," J. Korean Soc. Safety, 31(3), 156-161(2016). https://doi.org/10.14346/JKOSOS.2016.31.3.156
  7. Shin, C.-H. and Park, J.-H., "An Evaluation of the Off-site Risk of Spill from a Storage Tank of Nitric Acid," Crisisonomy, 12(3), 187-200(2016).
  8. Won, J.-H., Kim, B.-H., Ma, B.-C., Yoon, Y., Jo, A.-R., Chon, Y.-W. and Moon, J.-Y., "Development of the Simplified Estimating Method of Off-site Consequence Analysis for Hydrogen Chloride and Hydrogen Fluoride," Korean J. Hazard. Mater., 4(2), 41-52(2016).

Cited by

  1. Alternative Risk Assessment for Dangerous Chemicals in South Korea Regulation: Comparing Three Modeling Programs vol.15, pp.8, 2018, https://doi.org/10.3390/ijerph15081600