| Project/Area Number |
23560641
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | University of Yamanashi |
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Principal Investigator |
NISHIDA Kei 山梨大学, 医学工学総合研究部, 准教授 (70293438)
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| Co-Investigator(Renkei-kenkyūsha) |
清 和成 北里大学, 医療衛生学部, 教授 (80324177)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 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 |
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| Research Abstract |
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.
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