書誌事項
- タイトル別名
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- Distribution of Mutagen Formation Potential in Nationwide River Waters in Japan and Relationship with General Water Quality or River Basin Characteristics
- ゼンコク カセンスイ ノ ヘンイゲンセイ セイセイノウ ノ ブンプ オヨビ イッパン スイシツ コウモク カセン トクセイ トノ カンレンセイ
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抄録
We measured the mutagen formation potential (MFP) of 42 river water samples from 37 rivers throughout Japan using the Ames mutagenicity assay, to investigate the nationwide level of mutagen precursors contained in river water. The MFP of river water was highest when Salmonella typhimurium strain TA100 was used without metabolic activation. The MFPs ranged from 210 to 20,200 net rev. · l-1 and the median was 2,520 net rev. · l-1, which shows that the values varied greatly between samples. About 60% of the samples showed MFPs in the range from 1,500 to 3,500 net rev. · l-1. Dissolved organic carbon (DOC), E260, NH4-N, NO2-N, NO3-N and T-N concentrations were also measured. A strong positive relationship was observed between logarithmically-transformed DOC and MFP. However, the MFP/DOC ratio varied widely from 110 to 2,160 net rev. · mg-1. We also investigated the relationship between MFP and river basin characteristics such as population density. The results suggest that mutagen precursors are strongly influenced by human activities. In addition, rivers were classified using a cluster analysis of water qualities (MFP, DOC, E260, NH4-N and NO2-N+NO3-N).
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 30 (8), 433-440, 2007
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
- 1390282680058273024
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- NII論文ID
- 10019852498
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- NII書誌ID
- AN10372439
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- COI
- 1:CAS:528:DC%2BD2sXhtFSmsr3F
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- ISSN
- 18813690
- 09168958
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- NDL書誌ID
- 8919682
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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
