| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-05-19 |
| タイトル |
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|
タイトル |
Real-time detection of 3–8-µm microbial particles in sand filter effluent as a surrogate indicator of Cryptosporidium parvum oocysts |
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言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Rapid sand filter |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Water treatment |
| キーワード |
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|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Integrity monitoring |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Protozoa |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Boivin, Sandrine
Nagaoka, Hiroshi
Fujioka, Takahiro
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
Waterborne outbreaks of Cryptosporidium infection through drinking tap water are a significant threat to public health. Monitoring Cryptosporidium oocyst-sized microorganisms in sand filter effluent as a surrogate indicator of Cryptosporidium oocysts can detect sand filter integrity breaches. This study aimed to achieve the continuous monitoring of microbial particles (MPs) sized similarly to Cryptosporidium in sand filter effluent by remodeling an MP counter and demonstrating its validity. Instrumental settings of the MP counter (i.e., refractive index and particle diameter) were adjusted for accurate detection of Cryptosporidium parvum oocyst. The remodeled MP counter successfully detected Cryptosporidium parvum and Cryptosporidium-sized microorganisms (Saccharomyces cerevisiae and Chlorella vulgaris). Over a 7-d full-scale test, the MP counter coupled with dialysis pre-treatment continuously detected Cryptosporidium-sized (i.e., 3–8-µm) MPs at 0.2–27 counts/10 mL in the sand filter effluent. However, the variations in MP concentrations were not correlated with those in conventional indicators, such as turbidity and 1–3 or 3–7-µm particle counts, indicating that microbiological water safety cannot be guaranteed with these conventional indicators. Real-time monitoring of 3–8-µm MP concentrations allows for early detection of potential Cryptosporidium leaks through a sand filter. Abnormalities in water quality detected early would allow for effective countermeasures immediately, reducing the risk of waterborne protozoan outbreaks. |
|
言語 |
en |
| 書誌情報 |
en : Water Research X
巻 27,
p. art. no. 100345,
発行日 2025-05-10
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| 出版者 |
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出版者 |
Elsevier Ltd |
|
言語 |
en |
| ISSN |
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|
収録物識別子タイプ |
EISSN |
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収録物識別子 |
25899147 |
| DOI |
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関連タイプ |
isIdenticalTo |
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|
識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.wroa.2025.100345 |
| 権利 |
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|
権利情報 |
© 2025 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). |
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言語 |
en |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 引用 |
|
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内容記述タイプ |
Other |
|
内容記述 |
Water Research X, 27, art. no. 100345; 2025 |
|
言語 |
en |
WRX27_100345.pdf (2.6 MB)
