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화학사고로 인한 영향범위 내 환경수용체와 공공수용체를 고려한 위험도 분석방법론
최우수,김민호,류지성,권혜옥,Choi, Woosoo,Kim, Minho,Ryu, Jisung,Kwon, Hye-Ok 한국환경영향평가학회 2020 환경영향평가 Vol.29 No.4
The Off-site Risk Assessment (ORA) for preventing chemical accidents estimates the chemical accident risk at chemical plants. The method of estimating the risk is made by multiplying the number of residents within the effect area of the chemical accident and the frequency of accidents at a chemical plant. At present, the ORA does not quantitatively consider environmental receptors when the damage types within the scope of the accident are environmental receptors. In order to solve this problem, this study proposes a method of estimating the risk considering resident and environmental receptors. Through these studies, it was confirmed that the ORA impact for the prevention of chemical accidents requires risk analysis considering environmental receptors in the medium and long term. 화학사고를 예방하기 위한 장외영향평가서에서는 유해화학물질 취급시설의 화학사고 위험도를 산정하고, 적절한 안전성 확보방안을 확보하도록 유도한다. 위험도를 산정하는 방법은 '사고영향범위 내 주민 수'와 '취급시설의 사고발생빈도'의 곱이다. 현재 장외영향평가서에서는 사고영향범위 내 피해 유형으로 영향범위 내 주민 수만 고려하고 있고, 환경수용체에 대한 정량적 고려가 이루어지지 않고 있다. 본 연구에서는 환경수용체를 고려한 위험도 산정 방식을 제안하였고, 가상의 시나리오 분석을 통해 주민에 대한 고려만 이루어진 위험도와 환경수용체를 고려한 위험도 산정방식을 비교 분석하였다. 이러한 연구를 통하여, 화학사고 예방을 위한 장외영향평가 제도에서 중·장기적으로 환경수용체를 고려한 위험도 분석의 필요성을 확인하고 방법론을 제안하였으며, 향후 정책 및 제도개선의 기초자료로 활용하기를 기대한다.
Ivermectin, praziquantel, tamiflu, triclosan의 환경위해성평가
류태권(Taekwon Ryu),김정곤(Jungkon Kim),김경태(Kyungtae Kim),이재우(Jaewoo Lee),김지은(Jieun Kim),조재구(Jaegu Cho),윤준헌(Junheon Yoon),이재안(Jaean Lee),김필제(Pilje Kim),류지성(Jisung Ryu) 한국환경보건학회 2018 한국환경보건학회지 Vol.44 No.2
Objectives: The purpose of this study was to assess environmental risk on the emerging contaminants of concern, such as ivermetin, parziquantel, tamiflu and triclosan. Furthermore, we tried to provide a more efficient management practice and a basis for future studies of risk assessment on those substances. Methods: Predicted no effect concentration (PNEC) and predicted environmental concentration (PEC) were determined through modeling and literature reviews. Environmental risk assessment was evaluated by calculating HQ (hazard quotient) by a comparison of PEC (or measured environmental concentration (MEC)) and PNEC. Results: HQ value of tamiflu calculated from MEC was 1.9E-03. For ivermectin and triclosan, the HQ values were not available because these were not detected in the aquatic environment. The toxicity of ivermectin and triclosan showed a very low value, indicating a high level of HQ. However, praziquantel can be categorized into the material that do not require management since they have less than HQ 1. Conclusion: Based on the results of the initial risk assessment, it is assumed that the ivermectin and triclosan have potential to cause direct adverse effects on the aquatic environment. To conduct an accurate environmental risk assessment, the further study on PEC estimation of such contaminants should be actively carried out.
화학사고 장외영향평가 지원 프로그램(KORA)의 활용도 증대를 위한 제언
김정곤(Jungkon Kim),류지성(Jisung Ryu),류태권(Taekwon Ryu),곽솔림(Sollim Kwak),임형준(Hyeongjun Lim),최우수(Woosoo Choi),정진희(Jinhee Jung),이지은(Jieun Lee),임동연(Dongyeon Lim),윤준헌(Junheon Yoon) 한국환경보건학회 2018 한국환경보건학회지 Vol.44 No.2
Objectives: All enterprises intending to install and operate hazardous chemical handling facilities should prepare an off-site risk assessment (ORA) report that evaluates the impact of potential chemical accidents on the surrounding environment and population. This study was conducted to introduce the process of development and the functioning of the Korea Off-site Risk Assessment support tool (KORA) developed by the National Institute of Chemical Safety and to suggest manners to increase its utilization. Additionally, this article provided an overview of KORA. Methods: In order to identify problems with and refinements for KORA, the required items for each phase of KORA were derived by analyzing the Chemical Control Act and related administrative regulations. Results: The functions of KORA made receptor-considered assessment of chemical accidents possible, but several limitations were found in particular phases, such as the analysis of impact range, consideration of sensitive receptors, and assessment of environmental receptors. Conclusion: In this study, we suggested manners to increase the utilization of KORA. It is anticipated that the further research suggested in the study could contribute to the stabilization of the KORA system.