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Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the Osaka Bay, Japan
http://hdl.handle.net/2298/16672
http://hdl.handle.net/2298/16672e20c5cd4-dcbe-4bda-af0e-d6f114391732
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JGE_2010_Hosono-r.pdf (332.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2010-11-01 | |||||
| タイトル | ||||||
| タイトル | Historical record of heavy metal pollution deduced by lead isotope ratios in core sediments from the Osaka Bay, Japan | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | Pollution, Osaka Bay, 210Pb dating, Heavy meta, Lead isotope ratio | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
Hosono, Takahiro
× Hosono, Takahiro× Su, Chih-Chieh× Okamura, Kei× Taniguchi, Makoto |
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| 別言語の著者 |
細野, 高啓
× 細野, 高啓× 谷口, 真人× 岡村, 慶 |
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| 内容記述 | ||||||
| 内容記述 | Three marine sediment cores from Osaka Bay were analyzed for 210Pb geochronology, heavy metal concentrations (Zn, Cu, and Pb) and stable lead isotope ratios (206Pb/207Pb) in order to reconstruct high-resolution heavy metal pollution history from 1900-2006. Anthropogenic metal accumulation in sediments peaked in 1970 in agreement with the high economic growth period in Japan. The comparison of temporal patterns of 206Pb/207Pb ratio with other areas of Japan suggested that the heavy metals, imported from several different countries during the periods of economic growth (1955 to 1973), are the main pollution source for the country. For the period 1970-2006, the sediment data reflect the result of stricter environmental regulations applied after the late 1960s. However, heavy metal concentrations in the surface sediments are still elevated to levels several times higher than the levels at the bottoms of the cores. Additionally, the lead isotope ratio does not show significant change after the 1980s. Secondary heavy metal pollution through the mixing of deeper polluted sediment appears to be the likely reason for the deterioration of present time submarine sediment environments. In conclusion, this study has demonstrated that it is difficult to recover over a period of several years the water quality of a bay, once it is heavily polluted. | |||||
| 書誌情報 |
Journal of Geochemical Exploration 巻 107, 号 1, p. 1-8, 発行年 2010-10 |
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| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 関連識別子 | 10.1016/j.gexplo.2010.05.003 | |||||
| 権利 | ||||||
| 権利情報 | © 2010 Elsevier B.V. All rights reserved. | |||||
| 情報源(ISSN) | ||||||
| 関連名称 | 03756742 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 332520 bytes | ||||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 519.4 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 452 | |||||
| 出版者 | ||||||
| 出版者 | Elsevier BV | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 雑誌掲載論文 | ||||||
| 資源タイプ・NII | ||||||
| Journal Article | ||||||
| 資源タイプ・DCMI | ||||||
| text | ||||||
| 資源タイプ・ローカル表示コード | ||||||
| 01 | ||||||
| URL | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VCP-507BHKJ-1&_user=4545557&_coverDate=10%2F31%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000008298&_version=1&_urlVersion=0&_userid=4545557&md5=4468d8e82c83e0251fe7574065c60347&searchtype=a | |||||
