- Determination of Human Health Risk Incorporated with Arsenic Bioaccessibility and Remediation Goals at the Former Janghang Smelter Site
- Yang, Kyung;Kim, Young-Jin;Im, Jinwoo;Nam, Kyoungphile;
- Department of Civil and Environmental Engineering, Seoul National University;Water/Environment Team, Civil Engineering Division, Samsung C&T Corporation;Department of Civil and Environmental Engineering, Seoul National University;Department of Civil and Environmental Engineering, Seoul National University;
- (구)장항제련소 매입구역의 비소 오염도와 생물학적접근성을 반영한 위해성평가 및 정화수준 결정에 관한 연구
- 양경;김영진;임진우;남경필;
- 서울대학교 건설환경공학부;삼성물산주식회사 Civil 엔지니어링본부 물/환경팀;서울대학교 건설환경공학부;서울대학교 건설환경공학부;
Abstract
Metal concentrations in the former Janghang smelter area were determined and human health risk of arsenic (As) with bioaccessibility was investigated. Site investigation of the area within 1.5 km from the Janghang smelter showed the As concentrations of 4.8~169.8 mg/kg (avg. 37.8 mg/kg). For 85 samples out of 126 samples, As concentrations were higher than the Worrisome Level of the Korean Soil and Environment Conservation Act, and seven samples exceeded the Countermeasure Standard. Risk assessment for As incorporated with the bioaccessibility revealed that potential human health risk of the carcinogenic ($1.8{\sim}5.0{\times}10^{-5}$ ) was above the acceptable risk range ($10^{-5}{\sim}10^{-6}$ ) while the risk of the non-carcinogenic was not found. Remediation goals based on risk incorporated with bioaccessibility of As ranged from 10.8 to 20.0 mg/kg. Such difference in the remediation goals resulted from various bioaccessibility of As (i.e., between 8.7~66.3%) at the study site.
Keywords: Former Janghang smelter;Arsenic;Bioaccessibility;Risk assessment;
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