湧水中の15種微量元素・金属濃度の降雨による変動

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概要

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• 　The concentrations of fi fteen trace elements and minerals（ B, Al, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Mo, Cd, Sb, Pb and U） in samples of spring water that was usually used as drinking water by local residents were simultaneously analyzed by inductively coupled plasma-mass spectrometry （ICP-MS）. Water samples were taken once a day for five consecutive days from July 27 to July 31, 2008. On July 27, there was light precipitation（１mm）.　The following results were observed: low level concentrations of thirteen elements and minerals, except for Fe and Ni, were detected, and Fe and Ni were undetectable. The levels were all below Japan's drinking water-quality standards and environmental waterquality standards. The variations of each element's and mineral's concentrations in five days after the light precipitation were characterized. The concentrations of eleven elements and minerals, except for B, Sb, Pb and Al, had insignificant changes. B concentrations decreased on July 28, the day following the rainfall, and two days later its concentration read close to the basal level. Sb and Pb concentrations increased only on the day after the rainfall and ubsequently reached nearly the original level. Al concentrations gradually increased up to four days after the rainfall.　The phenomena explained above may show that the fi fteen trace elements and minerals in spring water samples are infl uenced mainly by the natural geologic environment and environmental contamination from sludge and/or solid waste landfi ll may not occur.

• 和洋女子大学の論文

著者

• 後藤 政幸

  和洋女子大学大学院総合生活研究科

関連論文

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• 湧水中の15種微量元素・金属濃度の降雨による変動
• 調理用ステンレス製鍋から溶出する微量元素のICP-MSによる分析と評価
• 調理用鍋から溶出される微量元素 : ホウロウ製鍋について誘導結合プラズマ-質量分析法を用いた分析
• アルミニウム製鍋から溶出する微量元素の分析と健康への影響についての検討
• 湧水中の15種微量元素・金属濃度の降雨による変動

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