Influence of density stratification on the dynamic behavior of high contaminated mercury at the mouth of Soca River in the Gulf of Trieste.

• Project/Area Number: 21404003
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Environmental dynamic analysis
• Research Institution: Nagasaki University
• Principal Investigator: TADA Akihide 長崎大学, 大学院・工学研究科, 教授 (90144328)
• Co-Investigator(Kenkyū-buntansha): TOMIYASU Takashi 鹿児島大学, 理学部, 教授 (60217552) ; MATSUYAMA Akito 国立水俣病総合研究センター, 疫学研究部, リスク評価室長 (00393463) ; YANO Shin-ichirou 九州大学, 工学研究院, 准教授 (80274489)
• Co-Investigator(Renkei-kenkyūsha): RAJAR Rudolf リュブリャナ大学, 名誉教授 ; HORVAT Milena ヨゼェフステファン研究所, 環境科学部長
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000); Fiscal Year 2009: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
• Keywords: 残留水銀の動態 / 密度成層 / 形態別水銀濃度 / 現地観測 / 数値シミュレーション

Research Abstract

In order to realize the influence of density stratification on the dynamic behavior of high contaminates mercury at the mouth of Soca River in the Gulf of Trieste, field observations on water quality and marine water sampling have carried out for two years. The obtained results are as follows ;(1) The density stratification between marine water and fresh water often occurs due to the runoff of Soca River significantly.(2) The maximum concentration of methyl-mercury appears close to hypolimnion.(3) The correlation coefficients between methyl-mercury and water temperature, dissolved oxygen are significant.

Research Products

• [Journal Article] 水俣湾における海水中の水銀の形態と輸送に関する現地調査 (2012)
  • Author(s): 矢野真一郎, 田井明, 矢野康平, 松山明人, 藤原竜二, 多田彰秀, 園田育子
  • Journal Title: 土木学会論文集B2(水工学) Volume: Vol.68, No.4
  • NAID: 130004557901
  • Peer Reviewed
• [Journal Article] 矢野真一郎,田井明,矢野康平,松山明人,藤原竜二,多田彰秀,園田育子,水俣湾における海水中の水銀の形態と輸送に関する現地調査,土木学会論文集B2(水工学),査読有,Vol.68,No.4,2012,pp.I_1567-I_1572 (2012)
  • Author(s): 矢野真一郎, 田井明, 矢野康平, 松山明人, 藤原竜二, 多田彰秀, 園田育子
  • Journal Title: 土木学会論文集B2(水工学) Volume: Vol.68,No.4
  • Peer Reviewed
• [Journal Article] Mercury Speciation in the Water of Minamata Bay (2011)
  • Author(s): Matsuyama, A., Eguchi, T., Sonoda, I., Tada, A., Yano, S., Tai, A., Marumoto, K., Tomiyasu, T. and Akagi, H.
  • Journal Title: Japan(Water, Air and Soil Pollution) Volume: Vol.218 Pages: 399-412
  • Peer Reviewed
• [Journal Article] 水俣湾における高頻度な水銀採水調査による微量水銀輸送量の測定 (2010)
  • Author(s): 矢野真一郎, 多田彰秀, 田井明, 矢野康平, 井村一樹, 藤原竜二
  • Journal Title: 土木学会論文集B2(海岸工学) Volume: Vol.66, No.1 Pages: 961-965
  • NAID: 130004956716
  • Peer Reviewed
• [Journal Article] Mercury Speciation in the Water of Minamata Bay, Japan (2010)
  • Author(s): Matsuyama, A., Eguchi, T., Sonoda, I., Tada, A., Yano, S., Tai, A., Marumoto, K., Tomiyasu, T., Akagi, H.
  • Journal Title: Journal of Water, Air and Soil Pollution Volume: DOI 10.1007/s11270-010-0654-z Pages: 1-14
  • Peer Reviewed
• [Presentation] 水俣湾内における2010年夏季の微量残留水銀の動態 (2012)
  • Author(s): 矢野康平, 矢野真一郎, 田井明, 藤原竜二, 多田彰秀, 松山明人, 園田育子
  • Organizer: 平成23年度土木学会西部支部研究発表会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2012-03-03
• [Presentation] In-site Measurement for Transport of Trace Mercury by Highly-Frequent Water Sampling in Minamata Bay, Proc (2011)
  • Author(s): Yano, S., Tada, A., Matsuyama, A., Tai, A., Yano, K., Imura, K. and Fujiwara, R.
  • Organizer: of the 10th International Conference on Mercury as a Global Pollutant
  • Place of Presentation: Halifax, Canada
  • Year and Date: 2011-07-28
• [Presentation] In-site Measurement for Transport of Trace Mercury by Highly-Frequent Water Sampling in Minamata Bay (2011)
  • Author(s): Yano, S., Tada, A., Matsuyama, A., Tai, A., Yano, K., Imura, K., Fujiwara, R.
  • Organizer: the 10th International Conference on Mercury as a Global Pollutant
  • Place of Presentation: Halifax, Canada
  • Year and Date: 2011-07-10
• [Presentation] 水俣湾内における浮遊懸濁物の粒度分布特性に関する現地観測 (2011)
  • Author(s): 矢野康平, 田井明, 矢野真一郎, 井村一樹, 藤原竜二, 多田彰秀
  • Organizer: 平成22年度土木学会西部支部研究発表会
  • Place of Presentation: 九州工業大学
  • Year and Date: 2011-03-05
• [Presentation] 水俣湾内における浮遊懸濁物の粒度分布特性に関する現地観測 (2011)
  • Author(s): 矢野康平, 田井明, 矢野真一郎, 井村一樹, 藤原竜二, 多田彰秀
  • Organizer: 平成22年度土木学会西部支部研究発表会
  • Place of Presentation: 九州工業大学戸畑キャンパス
  • Year and Date: 2011-03-05