Pollution dynamics of groundwater analyzed by microbial community structures and stable isotopes

微生物群落结构和稳定同位素分析地下水污染动态

• 批准号: 23560641
• 负责人: NISHIDA Kei
• 金额: $ 3.41万
• 依托单位: University of Yamanashi
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560641/
• 关键词: 国際研究交流; ネパール; 地下水; 微生物汚染; 安定同位体比; 国際研究者交流; カトマンズ

Field surveys of shallow groundwater were conducted to collect primary data of hydrology and water quality including microbial community structures and stable isotopes in Kathmandu, Nepal. Hydrologic factors (rainwater infiltration and water table increase) triggered the microbial contamination. Pathogens (BSL 2 or more) prevailed in multiple wells, livestock feces were supposedly one of the pollution sources in the area. Geostatistical analysis showed that districts with both dense population and damaged sewer might be hot spots of the pollution. Multivariate analysis showed that, in addition to water quality, chronic shortage and intermittent supply of piped water, storage of the water and instability of source were significantly related to diarrhoea occurrence. Thus, apparent improvement of sanitary infrastructures does not necessarily contribute for reducing health impact effectively and a master plan should be established on the basis of understanding the diverse water use.

进行了浅地下水的现场调查，以收集水文学和水质的主要数据，包括尼泊尔加德满都的微生物社区结构和稳定的同位素。 水文因素（雨水浸润和地下水位增加）触发了微生物污染。牲畜粪便据称是该地区的污染源之一。地统计分析表明，人口稠密和下水道受损的地区可能是污染的热点。多变量分析表明，除了水质，慢性短缺和间歇性水的供应，水的储存和源头不稳定与腹泻的发生显着相关。因此，显然改善卫生基础设施并不一定有助于有效地减少健康影响，并应根据了解多样化的用水量建立总体规划。

项目成果

Assessing nutrient fluxes in a Vietnamese rural area despite limited and highly uncertain data

尽管数据有限且高度不确定，但仍评估越南农村地区的养分通量

• DOI: 10.1016/j.resconrec.2011.04.008
• 发表时间: 2011
• 期刊: Resources, Conservation and Recycling
• 作者: Nga Do-Thu;Antoine Morel;Hung Nguyen-Vietc;Phuc Pham-Duc;Kei Nishida;Thammarat Kootattep
• 通讯作者: Thammarat Kootattep

Water Research Needs You

水研究需要您

• 发表时间: 2014
• 作者: Sadhana Shrestha;Nishida Kei;谷本圭志,谷雅幸;谷本圭志，高政和輝;Nishida Kei
• 通讯作者: Nishida Kei

ネパール・カトマンズの水環境汚染と健康影響

尼泊尔加德满都的水污染和健康影响

• 发表时间: 2013
• 作者: Sadhana Shrestha;Takashi Nakamura;Eiji Haramoto;Kei Nishida;西田継
• 通讯作者: 西田継

Nitrate-organic carbon relationship in groundwater denitrification os Kathmandu Valley, Nepal

尼泊尔加德满都谷地地下水反硝化中硝酸盐与有机碳的关系

• 作者: Nakamura;T.;K. Osaka;K. Nishida;S. K. Chapagain;Y. Hiraga and F. Kazama
• 通讯作者: Y. Hiraga and F. Kazama

カトマンズ盆地の地下水水中に分布する微生生物群集の解析

加德满都谷地地下水微生物群落分布分析

• 发表时间: 2012
• 作者: 三島悠一郎;荒木宏之;竹下侑志;藤原尚洋;高瀬晶弘,田中靖浩,松澤 宏朗,西田継,中村高志,Saroj K Chapagain,井上大介,清和成,遠山忠,森一博,坂本康,風間ふたば
• 通讯作者: 高瀬晶弘,田中靖浩,松澤 宏朗,西田継,中村高志,Saroj K Chapagain,井上大介,清和成,遠山忠,森一博,坂本康,風間ふたば