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Effect of salinity and dissolved organic matter on the partitioning of cobalt in a temperate estuary
https://repo.qst.go.jp/records/70400
https://repo.qst.go.jp/records/70400a2e218c1-27cc-4c1b-8b39-710e6c4fae99
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-02-23 | |||||
| タイトル | ||||||
| タイトル | Effect of salinity and dissolved organic matter on the partitioning of cobalt in a temperate estuary | |||||
| 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 | To investigate the effect of salinity and dissolved organic matter (DOM) on the partitioning of cobalt (Co) between dissolved and particulate phases during estuarine mixing, concentrations of Co were determined in surface waters from the Sagami River to Sagami Bay. This metal showed non-conservative mixing behavior with low or mid-salinity maxima. Distribution coefficients (Kd) of Co, which describes particle-water interactions of Co, decreased with increasing salinity, resulting from the competing and complexing effects of major ions in seawater and DOM. Thus, a laboratory experiment was undertaken by introducing riverine suspended particulate matter into estuarine seawater with/without ultra violet (UV)-irradiation to elucidate the effect of DOM in the particle-water interactions. The Kd in the estuarine seawater including DOM, was lower than that in the UV-irradiated estuarine seawater. This result indicates that complexation of Co with dissolved organic ligands is also important for particle-water interactions of Co. This work has been partially supported by the Agency for Natural Resources and Energy, the Ministry of Economy, Trade and Industry (METI), Japan. | |||||
| 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 | Aquatic Sciences Meeting | |||||
| 発表年月日 | ||||||
| 日付 | 2011-02-18 | |||||
| 日付タイプ | Issued | |||||
