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The geochemistry of heavy metals,yttrium,and rare earth elements in Wakasa Bay, Japan
https://repo.qst.go.jp/records/69502
https://repo.qst.go.jp/records/69502ff3e98e9-d97f-4b49-9f70-5d9518fc2bb1
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-10-06 | |||||
| タイトル | ||||||
| タイトル | The geochemistry of heavy metals,yttrium,and rare earth elements in Wakasa Bay, Japan | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Takata, Hyoe
× Takata, Hyoe× Aono, Tatsuo× Tagami, Keiko× Uchida, Shigeo× 高田 兵衛× 青野 辰雄× 田上 恵子× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The concentrations for dissolved heavy metals (Cd, Fe, and Co), Y, and rare earth elements (REEs) in the Yura River, estuarine mixing zone, and offshore region in Wakasa Bay were de-termined by ICP-MS. Data on salinity, pH, turbidity, and concentrations of nutrients in these areas were also obtained. A rapid increase in dissolved Cd concentrations was observed at low salinity in the mouth of the Yura River, and was presumably due to the inorganic complexation of the metal by seawater anions. In con-trast, the dramatic removal of dissolved Fe in the estuary was attributed to flocculation of colloidal Fe. Dis-solved Y and REE concentrations had maximum values at low salinity, probably due to an adsorption-desorption interaction with suspended particles, and then they sharply decreased in the estuarine mixing zone. The river water discharge would contribute high concentrations for dissolved Fe, Y, La, and Nd in the off-shore region. Thus the riverine trace metal input is one of the important sources for oceanic trace metals. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | HydroChange 2008 | |||||
| 発表年月日 | ||||||
| 日付 | 2008-10-03 | |||||
| 日付タイプ | Issued | |||||
