국내 샘물에서 몰리브덴(Mo)의 수질 특성에 관한 연구
Study on the Water Quality Characteristics of Domestic Spring Water in Terms of Molybdenum Content
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This study examines the Molybdenum content in the water source at bottled water manufacturing facilities across the country and its geographical and geological distribution characteristics. This study also reviews the need for prior risk management in assessing the risk of Molybdenum. The subject samples include 147 and 152 samples collected from intake holes in 2015 and 2016, respectively. They were analyzed with ICP-MS. The average concentration of detected Molybdenum was 4.44 μg/L (0~31.68 μg/L) and 3.21 μg/L (0~29.76 μg/L) for the 2015 and 2016 samples, respectively. The detection rates were 98.3% and 98.7% for the two periods, respectively. The distribution in Molybdenum content was the highest during the Mesozoic era, at 5.78 μg/L, and the lowest during the Paleozoic era at, 0.96 μg/L. The average values of sedimentary, metamorphic, and igneous rocks were 6.22 μg/L, 2.09 μg/L, and 5.02 μg/L, respectively, which indicates that it was highest for sedimentary rocks. This study also analyzes correlations between Mo and other minerals and discovered that Na recorded 0.47, As 0.34, SO4 0.29, confirming the correlations between Mo and other minerals. Other elements including Ca, Mg, K, U, Sb, V, Cu, Ba, Fe etc., had little correlations with Mo. The risk assessment results show that the average risk was 0.021 HQ and 0.015 HQ for the 2015 and 2016 samples, respectively. These results are considerably lower than “1” and suggest that there are few possibilities of Mo consumption risk.
Abstract
This study examines the Molybdenum content in the water source at bottled water manufacturing facilities across the country and its geographical and geological distribution characteristics. This study also reviews the need for prior risk management in assessing the risk of Molybdenum. The subject samples include 147 and 152 samples collected from intake holes in 2015 and 2016, respectively. They were analyzed with ICP-MS. The average concentration of detected Molybdenum was 4.44 μg/L (0~31.68 μg/L) and 3.21 μg/L (0~29.76 μg/L) for the 2015 and 2016 samples, respectively. The detection rates were 98.3% and 98.7% for the two periods, respectively. The distribution in Molybdenum content was the highest during the Mesozoic era, at 5.78 μg/L, and the lowest during the Paleozoic era at, 0.96 μg/L. The average values of sedimentary, metamorphic, and igneous rocks were 6.22 μg/L, 2.09 μg/L, and 5.02 μg/L, respectively, which indicates that it was highest for sedimentary rocks. This study also analyzes correlations between Mo and other minerals and discovered that Na recorded 0.47, As 0.34, SO4 0.29, confirming the correlations between Mo and other minerals. Other elements including Ca, Mg, K, U, Sb, V, Cu, Ba, Fe etc., had little correlations with Mo. The risk assessment results show that the average risk was 0.021 HQ and 0.015 HQ for the 2015 and 2016 samples, respectively. These results are considerably lower than “1” and suggest that there are few possibilities of Mo consumption risk.
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