2006 Fiscal Year Final Research Report Summary
Impact assessment of global environmental changes on safety and stability of water systems in Asian coastal mega cities
| Project/Area Number |
16404001
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKIZAWA Satoshi The University of Tokyo, Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (10206914)
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| Co-Investigator(Kenkyū-buntansha) |
FUKUSHI Kensuke The University of Tokyo, Integrated Research System for Sustainability Science, Associate Professor, 助教授 (30282114)
KATAYAMA Hiroyuki The University of Tokyo, Graduate School of Engineering, Assistant Professor, 大学院・工学系研究科, 講師 (00302779)
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| Project Period (FY) |
2004 – 2006
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| Keywords | Asia / Coast / Mega city / Water quality / Sanitation / Flood / Environmental risk / Vietnam |
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| Research Abstract |
In 2004, a survey on pathogenic microorganisms in contaminated river in HCMC was conducted. As a result, the concentration of coliform group and viruses in contaminated rivers in HCMC was found to be the same level as sewerage in Japan. In 2005, a survey was conducted in January and February, on the health impact of flooding in the communities along the Chiliwung River, and the following conclusions were obtained:
1)The major source of drinking water in the flooded are is shallow groundwater, which was contaminated with flood water.
2)The flood water that went into houses stay long hours, and the levels of coliform group were higher than Chiliwung River.
3)In the flooded area, the cases of diarrhea, skin diseases and influenza, were much higher than in the non-flooded area.
As a results of this survey, it was concluded that, in addition to the direct damage such as drowning, flood events force the local residents a long evacuation lives, and bring about health impacts.
In 2005, a similar flood survey as Jakarta was conducted in HCMC. In 2006, water quality monitoring was conducted along Sai Gon River and canals that flow into Sai Gon River. There is no tidal gate in Sai Gon River; hence the water level fluctuates a lot due to tidal fluctuation. There is no central wastewater treatment plant in HCMC, and both domestic and industrial wastewaters go Sai Gon River only after simple treatment like sedimentation. Hence it was found that the contaminated water from HCMC goes up the point of the city's water intake. If the water level goes up due to Global Environmental Changes, Asian coastal mega-cities such as Jakarta and HCMC will suffer more severely from flood events, and the cases of health effect will go up.
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Research Products
(22 results)
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[Journal Article] Monitoring of human enteric viruses and coliform bacteria in waters after urban flood in Jakarta, Indonesia2006
Author(s)
Phanuwan, C., Takizawa, S., Oguma, K., Katayama, K., Yunika, A., Ohgaki, S.
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Journal Title
Water Science and Technology 54・3
Pages: 203-210
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Monitoring of human enteric viruses and coliform bacteria in waters after urban flood in Jakarta, Indonesia2006
Author(s)
Phanuwan, C., Takizawa, S., Oguma, K., Katayama, K., Yunika, A., Ohgaki, S.
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Journal Title
Water Science and Technology Vol.54, No.3
Pages: 203-210
Description
「研究成果報告書概要(欧文)」より
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