書誌事項
- タイトル別名
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- Elemental Concentrations of Suspended Solids during Ordinary Water Discharge in the Hinuma River System
- 調査報告 涸沼川流域における平水時河川水の懸濁物質による主要元素濃度
- チョウサ ホウコク ヒヌマガワ リュウイキ ニ オケル ヘイスイジ カセンスイ ノ ケンダク ブッシツ ニ ヨル シュヨウ ゲンソ ノウド
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Samples of water and suspended solids (SS) collected from the Hinuma river system over one year were analyzed by PIXE (Particle Induced X-ray Emission) to determine elemental concentrations.<br>The average SS concentrations at the 11 sampling sites ranged from 1.4 to 12.7mg·l-1 during ordinary water discharge. The SS concentrations were the highest in the upstream reaches of the Hinuma River, but were lower from the middle to downstream reaches, suggesting that the SS may have settled to the riverbed. All of the SS samples contained relatively high concentrations of Al, Fe, Ca, K and Mg, suggesting that the SS consist of particles from the earth's crust. Variations in elemental ratios to Al of Na, Mg, K, Ca and Cu in the SS among the sampling sites may have been due to differences in geology, land use, drainage from quarries, or brackishness of the water. Moreover the highest Fe: Al ratio was observed at a site where a large microbial mat had developed; the Cu: Al ratio was remarkably high at another site where intensive pig farming was practiced.
収録刊行物
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- 水環境学会誌
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水環境学会誌 27 (3), 205-210, 2004
公益社団法人 日本水環境学会
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詳細情報 詳細情報について
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- CRID
- 1390001205081606528
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- NII論文ID
- 10012682675
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- NII書誌ID
- AN10372439
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- COI
- 1:CAS:528:DC%2BD2cXjs1egtbs%3D
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- ISSN
- 18813690
- 09168958
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- NDL書誌ID
- 6884229
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可