| Project/Area Number |
25257302
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Environmental impact assessment
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| Research Institution | Kagoshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MATSUYAMA Akito 国立水俣病総合研究センター, リスク評価室, 室長 (00393463)
IMURA Ryusuke 鹿児島大学, 学術研究院理工学域理学系, 准教授 (40284864)
UCHIUMI Toshiki 鹿児島大学, 学術研究院理工学域理学系, 教授 (20193881)
KODAMATANI Hitoshi 鹿児島大学, 学術研究院理工学域理学系, 助教 (30434468)
KONO Yuriko 鹿児島大学, 廃液処理センター, 助教 (60582070)
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| Co-Investigator(Renkei-kenkyūsha) |
MIYAMOTO Junko 鹿児島大学, 学術研究院理工学域理学系, 准教授 (40244222)
SATO Masanori 鹿児島大学, 学術研究院理工学域理学系, 教授 (80162478)
KANZAKI Ryo 鹿児島大学, 学術研究院理工学域理学系, 准教授 (50363320)
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| Research Collaborator |
Horvat Milena IJS, Dr.
Balogh Steven MCES, Dr.
Rahajoe Joeni S LIPI, Dr.
Hidayati Nuril LIPI, Dr.
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥38,610,000 (Direct Cost: ¥29,700,000、Indirect Cost: ¥8,910,000)
Fiscal Year 2015: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2014: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2013: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
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| Keywords | 水銀 / 環境挙動 / 生態系 / スロベニア / インドネシア / 鉱山活動 / 鉱山 / 金精錬活動 / メチル水銀 / イドリヤ / チカニキ川 / 土壌 / 河川水 / 環境影響 / 国際研究者交流 |
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| Outline of Final Research Achievements |
The distribution of total and methylmercury concentration was investigated with chemical composition of soil, TOC and TN around Idrija old mercury mine, Slovenia. Through the investigation, ethylmercury was found for the first time in soil of this area. The organic matter plays an important role for the formation of organic mercury compound. Significant relations were observed between mercury concentration in air, plant leaves and soil, which indicate a circulation of mercury through these media. In west Java, Indonesia, the dispersion and transport of mercury through river system was investigated and it was found that suspended particle is an important transporter of mercury. In muscle of fresh water snail living in paddy field, organic mercury concentration and the percentage of total mercury was considerably higher than the paddy field soil, which suggests that mercury discharged from small scale gold mining can give an impact on ecosystems.
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