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국내 유통 중인 먹는샘물 원수의 이온류 수질 특성에 관한 연구
이이내 ( Leenae Lee ),안경희 ( Kyunghee Ahn ),민병대 ( Byungdae Min ),양미희 ( Mihee Yang ),최인철 ( Incheol Choi ),정현미 ( Hyenmi Chung ),박주현 ( Juhyun Park ) 한국물환경학회 2016 한국물환경학회지 Vol.32 No.5
The goal of this study is to provide basic data to establish a foundation for the provision of safe drinkable water. The raw water of natural mineral water was analyzed to determine the quantities of anions (F<sup>-</sup>, Cl<sup>-</sup>, NO<sub>3</sub>-N<sup>-</sup>, and SO<sub>4</sub><sup>2-</sup>) and cations (Ca<sup>2+</sup>, K<sup>+</sup>, Mg<sup>2+</sup>, and Na<sup>+</sup>) during the former and latter half of 2016. Analysis of the current quality of the raw water of natural mineral water among domestic manufacturers showed average anions contents of 0.46㎎/L of fluorine, 8㎎/L of chlorine ion, 1.5㎎/L of nitrate nitrogen, and 12㎎/L of sulfate ion. While the fluorine content was greater than the water quality criterion of 2.0㎎/L at four points, the fluorine level was overall stable. The average cations contents included 21.3㎎/L of calcium, 1.0㎎/L of potassium, 3.4㎎/L of magnesium, and 9.6㎎/L of sodium. The chemical characteristics were compared among the major ions, and the results are presented in a piper diagram. The content ratio of cations was in the order of Ca<sup>2+</sup>>Na<sup>+</sup>>Mg<sup>2+</sup>>K<sup>+</sup>, whereas that of anions was in the order of SO<sub>4</sub><sup>2-</sup>〉Cl<sup>-</sup>>NO<sub>3-</sub>N>F<sup>-</sup>. While the cations were slightly scattered, the anions were generally concentrated except for at a few points. The Ca-Na-HCO<sub>3</sub> type was dominant overall in water sources from diorite, gneiss, and granite, while the Na-Mg-Ca-HCO<sub>3</sub>-Cl type was dominant in basalt sources. Mineral water manufacturers source their water under various conditions, including in-hole casing, excavation depth, and contact state of bedrock; even within the same rocky area, some differences in the water quality type can occur. When the depth of the water source was taken into account, the mean anions contents of F<sup>-</sup>, Cl<sup>-</sup>, NO<sub>3</sub>-N<sup>-</sup>, and SO<sub>4</sub><sup>2-</sup> were similar, with no significant differences according to depth. Of the cations, K<sup>+</sup> and Na<sup>+</sup> showed no significant differences across all the tubular wells, whereas Ca<sup>2+</sup> and Mg<sup>2+</sup> decreased in content with depth.
국내 먹는샘물 원수 중 바륨(Ba)의 수질 특성에 관한 연구
이이내,안경희,양미희,최인철,정현미,이원석,박주현,Lee, Leenae,Ahn, Kyunghee,Yang, Mihee,Choi, Incheol,Chung, Hyenmi,Lee, Wonseok,Park, Juhyun 한국물환경학회 2017 한국물환경학회지 Vol.33 No.4
The subject samples include 150 and 170 samples collected from intake holes in the former and latter half of 2015, respectively. They were analyzed with ICP-MS. The average concentration of detected barium was $10.54{\mu}g/L$ ($0.23{\sim}168.22{\mu}g/L$) and $8.21{\mu}g/L$ ($0{\sim}255.65{\mu}g/L$) for the former and latter halves of 2015, respectively. The concentration distribution was the highest for the precambrian era at $19.07{\mu}g/L$ and the lowest Cenozoic era at $4.92{\mu}g/L$. The average value for sedimentary, metamorphic, and igneous rocks was $7.84{\mu}g/L$, $20.84{\mu}g/L$, and $9.47{\mu}g/L$, respectively, which indicates that it was the highest for metamorphic rocks. The study also analyzed correlations between barium and other minerals and found that magnesium recorded 0.44 and 0.71 for the former and latter half of 2015, respectively. As for barium concentration according to depth, it was relatively low in shallow groundwater (under 200 m) with its average concentration at $14.33{\mu}g/L$ and $14.71{\mu}g/L$ for the former and latter half of 2015, respectively. It was $8.53{\mu}g/L$ and $4.04{\mu}g/L$ in deep groundwater (over 200 m) for the two periods, respectively, The risk assessment results show that its average risk was HQ 0.00139 and HQ 0.00163 for the former and latter half of 2015, respectively, being considerably lower than "1", which suggests that barium poses few possibilities of consumption risk.
손보영,이이내,양미희,박상민,표희수,이원석,박주현,Son, Boyoung,Lee, Leenae,Yang, Mihee,Park, Sangmin,Pyo, Heesoo,Lee, Wonsuk,Park, Juhyun 대한상하수도학회 2017 상하수도학회지 Vol.31 No.6
The chemical structures of perfluorinated compounds(PFCs) have unique properties such as thermal and chemical stability that make them useful components in a wide variety of consumer and industrial products. Two of these PFCs, perfluorooctane sulfonate(PFOS) and perfluorooctanoic acid(PFOA), have received attention and were the most commonly detected. In this study it was analyzed the concentrations of 8 PFCs in samples were collected from drinking water treatment plants for 5 years(2012-2016). PFOS and PFOA were also high concentration and frequency. The mean concentrations of PFOA and PFOS were detected $0.0026-0.0069{\mu}g/L$ and $0.0009-0.0024{\mu}g/L$ in samples from drinking water treatment plants. These were relatively lower or similar compared to PFOS concentrations in Osaka(Japan). In general, these levels are below health-based values set by international authoritative bodies for drinking water. These results will be serve as the first monitoring data for PFCs in drinking water and be useful for characterizing the concentration distribution and management of PFCs in future studies.