Impact assessment of the application of massive chemical fertilizers on groundwater arsenic contamination in the farming villages of the Red River Delta, Vietnam

2009 Fiscal Year Final Research Report

• Project/Area Number: 18580330
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Boundary agriculture
• Research Institution: Kyushu University
• Principal Investigator: KUROSAWA Kiyoshi Kyushu University, 熱帯農学研究センター, 教授 (70128114)
• Co-Investigator(Kenkyū-buntansha): EGASHIRA Kazuhiko 九州大学, 大学院・農学研究院, 教授 (20038293) ; FUKUDA Shinji 九州大学, 熱帯農学研究センター, 助教 (70437771)
• Project Period (FY): 2006 – 2009
• Keywords: アンモニウム態窒素 / 化学肥料 / 還元溶出 / 紅河デルタ / 水質基準 / 地下水 / 窒素同位体比 / ヒ素

Research Abstract

The arsenic concentration (μg/L) of groundwater in the farming villages of southern Hanoi city, Vietnam was a high of 150 at maximum with an average of 40. The arsenic in groundwater was found to occur by the reductive release of arsenic from sediments to groundwater. Nitrogen fertilizer produced ammonium-N in groundwater. Where the arsenic concentration was high, the ammonium-N concentration was high and oxidation-reduction potential was low in groundwater, thus the contribution of nitrogen fertilizer to the groundwater arsenic contamination was recognized. Contribution of phosphate fertilizer to the groundwater arsenic contamination was identified to be small.

Research Products

• [Journal Article] Variations in Inorganic Nitrogen Levels in Surface and Groundwater in Farming Villages around Hanoi (2008)
  • Author(s): Kiyoshi KUROSAWA, Hai Nguyen DO, Thanh Huu NGUYEN, Le Ha Thi TRAN, Lam Tra Thi HO, Kazuhiko EGASHIRA
  • Journal Title: Vietnam, Tropical Agriculture and Development Vol.52,No.1 Pages: 27-31
  • Peer Reviewed
• [Journal Article] Excessive Level of Inorganic Nitrogen in Groundwater in the Intensively Farmed Areas of Northern Vietnam (2008)
  • Author(s): Kiyoshi Kurosawa, Do Nguyen Hai, Nguyen Huu Thanh, Ho Thi Lam Tra, Tran Thi Le Ha, Trinh Quang Huy, Kazuhiko Egashira
  • Journal Title: Communications in Soil Science and Plant Analysis Vol.39 Pages: 2053-2067
  • Peer Reviewed
• [Journal Article] A preliminary model for estimating daily solar radiation in Gia Lam district (2008)
  • Author(s): Shinji Fukuda, Trinh Quang Huy, Do Nguyen Hai, Pham Van Cuong, Takuya Araki, Masaru Matsumoto, Ho Thi Lam Tra, Yuki Mori, Yohei Shimasaki, Ha Viet Cuong, Kiyoshi Kurosawa
  • Journal Title: Hanoi, Vietnam, Bulletin of the Institute of Tropical Agriculture, Kyushu University Vol.31 Pages: 51-60
  • Peer Reviewed
• [Journal Article] Sensitivity analysis on the daily water temperature model for paddy fields in Red River Delta (2007)
  • Author(s): Shinji Fukuda, Trinh Quang Huy, Pham Van Cuong, Takuya Araki, Do Nguyen Hai, Ho Thi Lam Tra, Yuki Mori, Yohei Shimasaki, Masaru Matsumoto, Ha Viet Cuong, Kiyoshi Kurosawa
  • Journal Title: Vietnam, Bulletin of the Institute of Tropical Agriculture, Kyushu University Vol.30 Pages: 67-81
  • Peer Reviewed
• [Journal Article] Monitoring of Inorganic Nitrogen in Surface and Groundwater at the Intensive Farming Villages of the Red River Delta (2007)
  • Author(s): Kiyoshi Kurosawa, Do Nguyen Hai, Nguyen Huu Thanh, Ho Thi Lam Tra, Tran Thi Le Ha, Trinh Quang Huy, Kazuhiko Egashira
  • Journal Title: Viet Nam, Bulletin of the Institute of Tropical Agriculture, Kyushu University Vol.30 Pages: 29-38
  • Peer Reviewed
• [Presentation] Arsenic concentration of groundwater in the farming villages of southern part of Hanoi City (2009)
  • Author(s): Kiyoshi Kurosawa
  • Organizer: Vietnam, アジア地下水ヒ素汚染フォーラム
  • Place of Presentation: 福島
  • Year and Date: 2009-11-15
• [Presentation] Fertilizer effect on arsenic release from sediments to groundwater based on laboratory experiment (2009)
  • Author(s): Md. Shamim Uddin
  • Organizer: アジア地下水ヒ素汚染フォーラム
  • Place of Presentation: 福島
  • Year and Date: 2009-11-14
• [Presentation] Present State of the Arsenic Contaminations in the Groundwater in the Lower Mekong River Basin (2009)
  • Author(s): Kurosawa, K.
  • Organizer: Seminar on Pathway of Arsenic from Groundwater Contamination to Human Health Hazard
  • Place of Presentation: Mymensingh, Bangladesh
  • Year and Date: 2009-03-03
• [Presentation] Temporal Changes of Inorganic-N Concentrations of Surface and Groundwater during a Rice Planting Period in Farming Villages of Northern Vietnam (2008)
  • Author(s): Do Nguyen Hai
  • Organizer: JSPS International Seminar 2008 "Hybrid Rice and Transformation of Farming Systems"
  • Place of Presentation: 福岡
  • Year and Date: 2008-11-23
• [Presentation] The level and sources of inorganic-N in the water of urbanized farming villages in Hanoi City (2007)
  • Author(s): Kiyoshi Kurosawa
  • Organizer: JSPS International Seminar- Hybrid Rice and Agroecosystem
  • Place of Presentation: Hanoi, Vietnam
  • Year and Date: 2007-11-23
• [Presentation] Numerical simulation on daily water temperature in paddy fields under hybrid rice cultivation (2007)
  • Author(s): Shinji FUKUDA
  • Organizer: JSPS International Seminar- Hybrid Rice and Agroecosystem
  • Place of Presentation: Hanoi, Vietnam
  • Year and Date: 2007-11-23
• [Presentation] Arsenic Contamination of Groundwater in the Farming Villages in and around Hanoi City (2007)
  • Author(s): Kiyoshi Kurosawa
  • Organizer: Recent Development in the Research of Soil and Water
  • Place of Presentation: Hanoi, Vietnam
  • Year and Date: 2007-09-21