書誌事項
- タイトル別名
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- OCCURRENCE OF CHLORATE AND PERCHLORATE IN GROUNDWATER IN TOKYO
抄録
Occurrence of chlorate and perchlorate in groundwater in Tokyo was investigated. The samples were collected in 2007 and 2009. Chlorate and perchlorate were detected at the concentrations larger than their determination limits in 24 of 49 and 28 of 52 samples, respectively. Their detection rates in unconfined aquifers and springs were higher than those in confined aquifers. The concentrations of chlorate and perchlorate in about 25% of samples were relatively high, particularly chlorate concentration in one sample (2000 μg/L) exceeded its standard value in drinking water. Compared to other groundwater in Japan (i.e., commercially available natural water and raw water in private water supply), the percentages of the samples with relatively high concentrations of chlorate and perchlorate were higher in groundwater in Tokyo. On the other hand, the percentages of the samples in which chlorate and perchlorate concentrations were larger than determination limits were the lowest. The medians of chlorate and perchlorate in the in groundwater in Tokyo were similar to those in other groundwater in Japan. It was suggested that origins of chlorate and perchlorate in groundwater were drinking water and/or sewage in many cases when their concentrations in groundwater were relatively high.
収録刊行物
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- 土木学会論文集Ｇ（環境）
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土木学会論文集Ｇ（環境） 69 (1), 10-18, 2013
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390282680332274432
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- NII論文ID
- 130004962471
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- ISSN
- 21856648
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可