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Arsenic in freshwater systems: Influence of eutrophication on occurrence, distribution, speciation, and bioaccumulation
http://hdl.handle.net/2297/30368
http://hdl.handle.net/2297/30368c1bb8f40-ca89-4c48-9e4f-3d17a1791edf
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TE-PR-HASEGAWA-H-304.pdf (255.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Arsenic in freshwater systems: Influence of eutrophication on occurrence, distribution, speciation, and bioaccumulation | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Rahman M., Azizur
× Rahman M., Azizur× Hasegawa, Hiroshi |
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| 書誌情報 |
Applied Geochemistry 巻 27, 号 1, p. 304-314, 発行日 2012-01-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0883-2927 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10681191 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.apgeochem.2011.09.020 | |||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Arsenic exists in a variety of chemical forms, and microbial metabolism results in the occurrence of thermodynamically unstable arsenite (As III) and methylarsenic compounds in freshwaters (rivers and lakes). The inorganic forms (As V and As III) and the methylated forms (methylarsonic acid; MMAA V and dimethylarsinic acid; DMAA V) are the main species of As in freshwaters while the bulk of the total dissolved As is inorganic species. Although the predominant forms of methylarsenic compounds are consistently DMAA V followed by MMAA V, the DMAA III and MMAA III species have also been found in freshwaters. Several observations have revealed that phytoplankton activities are responsible for the seasonal variations of methylarsenic compounds in freshwaters. Although it was unclear if the occurrences of methylarsenic compounds were from the breakdown of larger molecules or the end-products of phytoplankton biosynthesis, recent studies have revealed that less toxic As-glutathione complexes are intermediates in the biosynthesis of organoarsenic compounds by phytoplankton. Recent studies have also revealed that eutrophication plays an important role in the production, distribution, and cycling of methylarsenic compounds in freshwaters. In this review, the recent reports on the influence of eutrophication on distribution, speciation, and bioaccumulation in freshwaters are discussed. © 2011 Elsevier Ltd. | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
