Japan Geoscience Union Meeting 2016

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Poster

Symbol O (Public) » Public

[O-02] Poster presentations by senior high school students

Sun. May 22, 2016 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Miwa Kuri(International Research Institute of Disaster Science, Tohoku University), Keiko Konya(Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology), Hajime Naruse(Department of Geology and Mineralogy, Graduate School of Science, Kyoto University), Kou Yamada(Waseda University)

1:45 PM - 3:15 PM

[O02-P52] Analysis and consideration of metal ion concentration of water taken in a stream in Yosemite Valley using ICP-AES Ver.5

*Makihito Nakamura1, *Ayano Ikeuti1, *Saya Machida1 (1.Nagano Prefectural Yashiro High School)

Keywords:Water quality

We took water samples at six spots in the Merced River and surrounding rivers flowing through Yosemite National Park. Then we measured ion concentration of 28 different metals using ICP-AES with the support of Shinshu University Faculty of Engineering Department of Environmental Science and Technology. Among those metals, the detected amounts of these 8 ions -Barium, Calcium, Iron, Potassium, Magnesium, Sodium, Strontium, and Yttrium- were relatively high. So referring to this data, comparing that with the data from the past 4 years, we considered correlations between the length of the rivers and concentration of ions.