Development of alternative indicators for water access and proposal of measures to improve water access towards post-MDGs

2016 Fiscal Year Final Research Report

• Project/Area Number: 26303013
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Civil and environmental engineering
• Research Institution: The University of Tokyo
• Principal Investigator: Takizawa Satoshi 東京大学, 工学(系)研究科(研究院), 教授 (10206914)
• Co-Investigator(Renkei-kenkyūsha): LOHWACHARIN JENYUK 東京大学, 大学院工学系研究科, 特任助教 (60709517)
• Research Collaborator: MATSUBARA KOUICH (株)日水コン
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 安全な飲料水 / IWS / 大腸菌 / 家庭内水処理 / 浄水処理 / consumers’ perception / フッ素 / 飲料水水質

Outline of Final Research Achievements

It was found that household water treatment (HWT) can increase the access to safe drinking water in Hanoi by 8% to 20%. A HWT using reverse osmosis membrane can remove fluoride in groundwater in Chiang Mai. In Kathmandu, Nepal, a half of the residents can use piped water less than 6 hours per week, and a half of the piped water samples were contaminated by E. coli. However, HWTs can increase the access to safe drinking water from 42% to 80%. It was revealed by a questionnaire survey that the zero customers, who do not use piped water even they are connected, are small in their numbers in coastal areas, but a large proportion of the residents are zero customers in inland areas where they can use groundwater.

Free Research Field

土木工学・土木環境システム