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http://dx.doi.org/10.7857/JSGE.2014.19.4.052

Determination of Human Health Risk Incorporated with Arsenic Bioaccessibility and Remediation Goals at the Former Janghang Smelter Site  

Yang, Kyung (Department of Civil and Environmental Engineering, Seoul National University)
Kim, Young-Jin (Water/Environment Team, Civil Engineering Division, Samsung C&T Corporation)
Im, Jinwoo (Department of Civil and Environmental Engineering, Seoul National University)
Nam, Kyoungphile (Department of Civil and Environmental Engineering, Seoul National University)
Publication Information
Journal of Soil and Groundwater Environment / v.19, no.4, 2014 , pp. 52-61 More about this Journal
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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