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Artisanal gold mining related mercury pollution in Ratatotok area of North Sulawesi, Indonesia
https://doi.org/10.15083/00040825
https://doi.org/10.15083/000408255b9f3adc-e3a5-4694-bb1d-068517722d22
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004098942.pdf (988.6 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-04-05 | |||||
| タイトル | ||||||
| タイトル | Artisanal gold mining related mercury pollution in Ratatotok area of North Sulawesi, Indonesia | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | mercury | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | artisanal gold mine | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | bioaccumulation | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Indonesia | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15083/00040825 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
Daniel, Limbong
× Daniel, Limbong× Jeims, Kumampung× Dansho, Ayhuan× Arai, Takaomi× Miyazaki, Nobuyuki |
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| 著者所属 | ||||||
| 著者所属 | Yayasan Bina Cipta AquaTech | |||||
| 著者所属 | ||||||
| 著者所属 | Provincial Environment Management Board of North Sulawesi, Manado Indonesia | |||||
| 著者所属 | ||||||
| 著者所属 | International Coastal Research Center, Ocean Research Institute, The University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | Center for International Cooperation, Ocean Research Institute, The University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | Sam Ratulangi University | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Gold mining in the Ratatotok area has a long history going back to the activity of a Dutch company, Nederland Mynbouw Maschapai in the years 1887 to 1922. After about 60 years latter, artisanal or small groups of local community started to seek their fortune in the gold mining using techniques learned from the Dutch company, consisting of gold vein tunnels and mercury amalgamation processing. In the 1990s an American company, PT. Newmont Minahasa Raya obtained a gold mining concession in a part of this area. This company uses advanced technologies such as open pit mining, cyanidation processing, detoxification of sludge, and a sub-marine tailing system. While the problems of mercury emissions from artisanal gold mining have been well studied in much of the world, little has been written about the state of mercury pollution in this area. It is vital to understand how the situation has affected the surrounding aquatic environment, because fish is the main protein source and income for the local community. This study has been carried out with aims of determing the influence of mercury emissions from artisanal gold mining activity upon the surrounding aquatic environment. Research included total mercury determination in water, sediment, and fish samples taken along the impacted Totok River. Total mercury determinations were accomplished using an atomic absorption spectrophotometer employing cold vapor generation. As a result, high concentrations of mercury in sediment and fish meat has been noted. The water samples showed only small amounts of mercury. In sediment, mercury contents were seen to increase at deeper layers, reaching up 40mg/kg dry weight. The analysis of fish meat samples showed that the mercury the range from 0.08 mg/kg in pelagic fish to 0.89 mg/kg in bivalve. The present findings demonstrate that a more comprehensive monitoring of the presence of mercury in fish taken in the area of Totok Bay in order to better mitigate this problem. | |||||
| 書誌情報 |
Coastal marine science 巻 29, 号 1, p. 69-74, 発行日 2004-04-30 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13493000 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11957899 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 452 | |||||
| 出版者 | ||||||
| 出版者 | International Coastal Research Center, Ocean Research Institute, the University of Tokyo | |||||
| 出版者別名 | ||||||
| 東京大学海洋研究所国際沿岸海洋研究センター | ||||||
