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Monitoring of heavy metals contamination in agricultural products at abandoned mine area
Eun-hee Chang(장은희),Mi-jeong Gwon(권미정),Hwang-ran Hwang(황향란),Eun-mo Jeong(정은모) 한국분석과학회 2021 학술대회논문집 Vol.2021 No.11
This study was carried out to risk assessment of lead(Pb), cadmium(Cd), and inorganic arsenic(I-As) contamination in agricultural products at abandoned mine area in 27 crops including rice and vegetables. The 269 typical investigation sites located in Bongwha-gun 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. The various samples were collected and performed using microwave device and ICP/MS in lead and cadmium(n=1,059). Inorganic arsenic was treatment of 1% nitric acid and using HPLC-ICP/MS(n=365). The Limit of detection(LOD), Limit of quantification(LOQ), and correlation coefficient(R²) for heavy metals were 0.19-0.66 μg/kg, 0.19-0.65 μg/kg, and 0.9998-1.0000, respectively. Conclusively, it requires to consider the critical levels of heavy metals agricultural products due to unexpectedly high levels in few places while amount of heavy metals in the samples were relatively low in most areas.
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