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http://dx.doi.org/10.5338/KJEA.2020.39.1.2

Risk Assessment about Heavy Metals Contamination in Agricultural Products at Abandoned Mine Area  

An, Jae-Min (Department of quality control, Gyeongbuk Provincial Office, National Agriculture Products Quality Management Service)
Chang, Soon-Young (Department of quality control, Gyeongbuk Provincial Office, National Agriculture Products Quality Management Service)
Hwang, Hyang-Ran (Department of quality control, Gyeongbuk Provincial Office, National Agriculture Products Quality Management Service)
Park, Dae-Han (Department of quality control, Gyeongbuk Provincial Office, National Agriculture Products Quality Management Service)
Lee, Bom-Nae (Department of quality control, Gyeongbuk Provincial Office, National Agriculture Products Quality Management Service)
Kim, Saet-Byeol (Department of quality control, Gyeongbuk Provincial Office, National Agriculture Products Quality Management Service)
Lee, Gwang-Hee (Department of quality control, Gyeongbuk Provincial Office, National Agriculture Products Quality Management Service)
Publication Information
Korean Journal of Environmental Agriculture / v.39, no.1, 2020 , pp. 10-19 More about this Journal
Abstract
BACKGROUND: This study was to carry out risk assessment of contamination of cadmium (Cd), lead (Pb), and inorganic arsenic (I-As) in agricultural products of 25 crops from the abandoned mine areas. The 36 typical investigation sites located in Gyeongbuk provincial area were selected by considering the heavy metal levels, that had been known that the amount of the heavy metals exceeded the contamination level based on the previous survey. METHODS AND RESULTS: Cadmium, lead, and total arsenic (T-As) concentrations were determined using microwave device and ICP-MS. Inorganic arsenic was determined by HPLC-ICP-MS. The limits of quantification for heavy metals were 0.59 ㎍/kg for Cd, 0.42 ㎍/kg for Pb, 0.55 ㎍/kg for T-As, and sum of As (III) (1.74 ㎍/kg) and As (V) (2.25 ㎍/kg) for I-As, respectively. The contents of Cd, Pb, and I-As (only rice) were N.D.-0.958 mg/kg, N.D.-0.227 mg/kg, and 0.082 mg/kg, respectively, in the agricultural products. For risk assessment, dietary exposures of heavy metals through usual intake were 5.20×10-4-7.15×100 ㎍/day for Cd, 7.00×10-5-7.75×10-1 ㎍/day for Pb, and 1.17×101 ㎍/day for I-As, taking 0.01-14.37%, 0.01-2.05%, and 15.16% as risk indices, respectively. CONCLUSION: It requires to consider the critical levels of heavy metals in agricultural products due to unexpectedly high levels in a few places, while concentrations of heavy metals in the samples were relatively low in most areas.
Keywords
Agricultural Product; Heavy Metal; Mine Area; Risk Assessment;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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