Impact assessment of global environmental changes on safety and stability of water systems in Asian coastal mega cities

全球环境变化对亚洲沿海特大城市水系统安全与稳定的影响评估

• 批准号: 16404001
• 负责人: TAKIZAWA Satoshi
• 金额: $ 8.45万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16404001/
• 关键词: Asia; Coast; Mega city; Water quality; Sanitation; Flood; Environmental risk; Vietnam

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.

2004年，对胡志明市污染河段进行了病原微生物调查。结果，HCMC受污染的河流中的大肠菌群和病毒浓度与日本的污水处理水平相同。2005年1月和2月，对赤里翁河沿岸社区洪灾对健康的影响进行了调查，得出以下结论：1)受灾地区饮用水的主要来源是浅层地下水，被洪水污染；2)洪水进入房屋的时间较长，大肠菌群水平高于赤里翁河。3)洪泛区腹泻、皮肤病和流感的病例远高于非洪泛区。调查结果表明，除了溺水等直接损害外，洪水迫使当地居民延长了疏散寿命，并带来了健康影响。2005年，HCMC进行了一次与雅加达类似的洪水调查。2006年，在西贡河沿岸和流入西贡河的运河进行了水质监测。西贡河没有防潮闸，因潮汐起伏，水位波动较大。胡志明市没有中央污水处理厂，生活和工业废水都要经过沉淀等简单处理后才能进入西贡河。因此，人们发现，来自HCMC的受污染的水上升到了城市的取水点。如果全球环境变化导致水位上升，雅加达和HCMC等亚洲沿海特大城市将遭受更严重的洪灾，影响健康的病例将会上升。

项目成果

Distribution of PCDDs/PCDFs in Sediments from the Pong River, Khon Kaen, Thailand.

泰国孔敬 Pong 河沉积物中 PCDD/PCDF 的分布。

• 发表时间: 2006
• 期刊: Environmental Engineering Research 43
• 作者: Reungsang;A.;Takizawa;S.;Wirojanagud;W.
• 通讯作者: W.

Large-scale Groundwater Flow Model for Ho Chi Minh City and Its Catchment Area, Southern Vietnam, H11A-1251.

越南南部胡志明市及其集水区大型地下水流模型，H11A-1251。

• 发表时间: 2005
• 期刊: Proc. of Annual Conference of American Geological Union, San Francisco, CA, December 2005.
• 作者: Sigrist;M;Tokunaga;T;Takizawa S
• 通讯作者: Takizawa S

Monitoring of human enteric viruses and coliform bacteria in waters after urban flood in Jakarta, Indonesia

• DOI: 10.2166/wst.2006.470
• 发表时间: 2006-01-01
• 期刊: WATER SCIENCE AND TECHNOLOGY
• 影响因子: 2.7
• 作者: Phanuwan, C.;Takizawa, S.;Ohgaki, S.
• 通讯作者: Ohgaki, S.

チェンマイ盆地における地下水中のフッ素除去を目的としたNF膜プロセスの評価

清迈盆地地下水除氟纳滤膜工艺评价

• 发表时间: 2006
• 期刊: 土木学会論文集 Vol.62、No.4、
• 作者: 松井康弘;武田智子;滝沢智;Aunnop Wongrueng;Suraphong Wattanachira
• 通讯作者: Suraphong Wattanachira

Water pollution in inner-city canals in Ho Chi Minh City, Viet Nam

越南胡志明市内城运河水污染

• 发表时间: 2007
• 期刊: Southeast Asian Water Environment 2
• 作者: Nguyen;T.Thuong;Takizawa;S.;Nguyen;P.Dan.;Bui;D.Truong
• 通讯作者: D.Truong