Presentation Information
[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.