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Monitoring of Cd, Hg, Pb, and As and Risk Assessment for Commercial Medicinal Plants
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 Title & Authors
Monitoring of Cd, Hg, Pb, and As and Risk Assessment for Commercial Medicinal Plants
Kim, Hyuck-Soo; Kim, Kwon-Rae; Hong, Chang-Oh; Go, Woo-Ri; Jeong, Seon-Hee; Yoo, Ji-Hyock; Cho, Nam-Jun; Hong, Jin-Hwan; Kim, Won-Il;
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BACKGROUND: The current study was carried out to investigate Cd, Hg, Pb and As contaminations in 222 commercial medicinal plants and to estimate the potential health risk through dietary intake of commercial medicinal plants in Korea.METHODS AND RESULTS: The Cd, Hg, Pb, and As in medicinal plants were analyzed by ICP/MS and mercury analyzer.The potential health risk was estimated using risk assessment tools. Total amount of Cd in medicinal plants with 29% samples exceeded the standard limit legislated in 'Pharmaceutical Affairs Act' while all plant samples were lower than the standard limit value for As, Hg, and Pb. However, when applying the standard limit for root vegetable (fresh weight) in the Food Sanitation Act, four samples exceeded the standard limit of Pb. For health risk assessment, the values of cancer risk probability were 0.3~5.9×10-7which were less than the acceptable cancer risk of 10-6~10-4for regulatory purpose. Also, Hazard quotientvalues were lower than 1.0.CONCLUSION: Therefore, these results demonstrated that human exposure to Cd, Hg, Pb, and As through dietary intake of commercial medicinal plants might notcause adverse health effects although some medicinal plants were higher than the standard limit values for Cd and Pb.
Arsenic;Health risk;Heavy metal;Medicinal plant;Safety;
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