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Evaluation of human exposure to arsenic due to rice ingestion in the vicinity of abandoned Myungbong Au–Ag mine site, Korea

Cited 52 time in Web of Science Cited 65 time in Scopus
Authors
Lee, Jin-Soo; Lee, Sang-Woo; Chon, Hyo-Taek; Kim, Kyoung-Woong
Issue Date
2008
Publisher
Elsevier
Citation
J. Geochem. Explor. 96, 231-235
Keywords
ArsenicRisk assessmentExposure pathwayRice ingestionsHazard indexCancer risk
Abstract
In order to assess the risk of adverse health effects on human exposure to arsenic (As) influenced by past mining activities an environmental geochemical survey was undertaken in the abandoned Myungbong gold–silver (Au–Ag) mine area. Elevated levels of As were found in tailings from the studied mine area. This high concentrations may impact on agricultural soils and waters around the tailing piles. The resulting human health risks to farmers who inhabit the surrounding areas due to consumption of rice grown on contaminated soils are summarized as follows: (1) The non-cancer health hazard index showed that the toxic risk due to As was 7.8 times greater than the reference dose. (2) The increased cancer risk of As for exposed individuals through the rice consumption pathway was 1 in 1 000, exceeding the acceptable risk of 1 in 10,000 set for regulatory purposes. Thus, the daily intake of rice by the local residents from the Myungbong mine area can pose a potential health threat due to long-term As exposure.
ISSN
0375-6742
Language
English
URI
http://hdl.handle.net/10371/7490
DOI
https://doi.org/10.1016/j.gexplo.2007.04.009
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Energy Systems Engineering (에너지시스템공학부)Journal Papers (저널논문_에너지시스템공학부)
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