Estimation and improvement of arsenic intake of a population living in arsenic-affected area in Bangladesh

• Project/Area Number: 20760354
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Civil and environmental engineering
• Research Institution: Hokkaido University
• Principal Investigator: OHNO Koichi Hokkaido University, 大学院・工学研究科, 助教 (00322834)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 水環境 / 曝露評価 / 解析・評価 / 水質汚濁・浄化 / 摂取量評価 / ヒ素 / 国際情報交換 / バングラデシュ

Research Abstract

Arsenic concentration not only in drinking water but also in cooking water could affect the arsenic intake. We provided cooking water that contain low arsenic to local people, and found that arsenic intake via food, especially via rice, was decreased. In Bangladesh, they use water for polishing rice as well as for cooking. We found that arsenic in the water used for polishing rice also affected the arsenic content in the rice. Generally, arsenic-contaminated well water also contain iron and the iron could co-precipitate with arsenic. The application of this co-precipitation process can reduce the arsenic concentration in polishing water and thus in polished rice.

Research Products

• [Journal Article] Effect of rice-cooking water to the daily arsenic intake in Bangladesh: results of field surveys and rice-cooking experiments (2009)
  • Author(s): Ohno, K., Matsuo, Y., Kimura, T., Yanase, T., Rahman, M.H., Magara, Y., Matsushita, T., Matsui, Y.
  • Journal Title: 59(2) Pages: 195-201
  • Peer Reviewed
• [Journal Article] Effect of rice-cooking water to the daily arsenic intake in Bangladesh : results of field surveys and rice cooking experiments (2009)
  • Author(s): OHNO, Koichi, et.al.
  • Journal Title: Water Science and Technology 59(2) Pages: 195-201
  • Peer Reviewed
• [Presentation] 有害物質の摂取量に対する水道水の寄与 (2009)
  • Author(s): 大野浩一, 石川浩平, 黒沢裕貴, 松下拓, 松井佳彦
  • Organizer: 第12回日本水環境学会シンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2009-09-14
• [Presentation] 食品からの必須・有害金属摂取量と飲料水の寄与率の調査 (2009)
  • Author(s): 石川浩平, 黒沢裕貴, 大野浩一, 松下拓, 松井佳彦
  • Organizer: 第60回全国水道研究発表会
  • Place of Presentation: さいたま市
  • Year and Date: 2009-05-22
• [Presentation] 食品からの必須・有害金属摂取量と飲料水の寄与率の調査 (2009)
  • Author(s): 石川浩平, 黒沢裕貴, 大野浩一, 松下拓, 松井佳彦
  • Organizer: 第60回全国水道研究発表会
  • Place of Presentation: 大宮ソニックシティ、さいたま市
  • Year and Date: 2009-05-22
• [Presentation] Exposure assessment of toxic and essential metals via drinking water and total diet in Japan (2009)
  • Author(s): Ishikawa, K., Ohno, K., Kurosawa, Y., Matsui, Y., Matsushita, T., Magara, Y.
  • Organizer: the 3rd IWA-ASPIRE Conference
  • Place of Presentation: Taipei, Taiwan
• [Presentation] 食品からの無機物質摂取量と飲料水の寄与率の調査 (2008)
  • Author(s): 石川浩平, 大野浩一, 松井佳彦, 松下拓
  • Organizer: 第16回衛生工学シンポジウム
  • Place of Presentation: 札幌市
  • Year and Date: 2008-11-13
• [Presentation] 食品からの無機物質摂取量と飲料水の寄与率の調査 (2008)
  • Author(s): 石川浩平
  • Organizer: 第16回衛生工学シンポジウム
  • Place of Presentation: 北海道大学、札幌
  • Year and Date: 2008-11-13