A Study on the Simplified Estimating Method of Off-site Consequence Analysis for Aqueous Ammonia

암모니아수의 농도별 간이 영향평가 방법 연구

Jung, Yu-kyung;Heo, Hwajin;Yoo, Byungtae;Yoon, Yi;Yoon, Junheon;Ma, Byungchol

  • Received : 2016.02.18
  • Accepted : 2016.04.26
  • Published : 2016.04.30


Aqueous ammonia is widely used in household cleaners, fertilizers and denitrification process. It is usually treated in concentrations from 10 % to 30 %, and release accidents have occurred frequently. In this study, we developed a simplified estimating method and equation to calculate threat zone easily in case of emergency due to release accident of aqueous ammonia. We calculated the consequence distance for toxic endpoints of aqueous ammonia(concentration 10 % ~ 30 %) at different puddle areas($1m^2{\sim}500m^2$) using the ALOHA program. Based on the result, we analyzed the relationship between concentration and puddle area with the threat zone and created the equation.


aqueous ammonia;simplified estimating method;estimating equation;risk management plan(RMP);off-site risk assessment(ORA)


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