- Numerical Study of Contaminant Pathway for Risk Assessment in Subsurface of Contaminated Sites
- Chang, Sun Woo;Moon, Hee Sun;Lee, Eunhee;Joo, Jin Chul;Nam, Kyoungphile;
- Korea Institute of Civil Engineering and Building Technology;Korea Institute of Geoscience and Mineral Resources;Korea Institute of Geoscience and Mineral Resources;Hanbat National University;Seoul National University;
- 오염부지 위해성평가 시 오염물질 노출이동경로 평가를 위한 수치모델 적용에 관한 연구
- 장선우;문희선;이은희;주진철;남경필;
- 한국건설기술연구원;한국지질자원연구원;한국지질자원연구원;한밭대학교;서울대학교;
Abstract
The purpose of this study is to suggest conceptual models based on finite numerical method that can be used to assess contaminant transport through subsurface and estimate exposed concentration at contaminated site. This study tested various assumptions of the numerical models for contaminant transport in unsaturated and saturated zones to simulate the pathways to the human exposal point. For this purpose, models for seven possible scenarios of contaminant transport were simulated using the numerical code MODFLOW and MT3D. The simulation results that showed different peak concentrations and travel times were compared. In conclusion, the potential utility of the numerical models in the site specific risk analysis suggested as well as future research ramifications.
Keywords: Risk assessment;Exposed concentration;Numerical model;Groundwater;Contaminated site;
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