書誌事項
- タイトル別名
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- Nonanthropogenic Levels of Cadmium, Lead, and Non Seasalt-sulfate in Rain and Snow Water Collected in Remote Areas in Japan
- アナリティカルレポート 日本の遠隔地における降雨と降雪中のカドミウム,鉛及び非海塩性硫酸イオンの非人為活動レベルの濃度
- アナリティカルレポート ニホン ノ エンカクチ ニ オケル コウウ ト コウセツ チュウ ノ カドミウム,ナマリ オヨビ ヒカイエンセイ リュウサン イオン ノ ヒジンイ カツドウ レベル ノ ノウド
この論文をさがす
説明
<p>Natural levels of the concentration of water-soluble species of cadmium and lead as toxic elements in fresh snow and summer rain collected on remote and/or rural areas in Japan were observed. During the winter, it is a trivial event that snow interferes by trivial amounts of long-range transported aerosols from the East Asian continent which is collected in Japan with the exception of snow fall from cold air masses remaining over Japan for over 24 h. During the summer, it is possible to collect clean rain water without any interference of East Asia. Three snow samples, at Shobara (315 m alt.), Hiroshima; Mt. Dainitigatake (1250 m), Gifu; Mt. Shimokura (1130 m), Hachimantai Iwate, and seventeen samples of rain, at Mt. Kajigamori (1400 m), Kochi, were collected as background samples. Cadmium and lead were determined by the ICP-MS technique without any pre-concentration, where the limits of detection LOD (3σ) of Cd and Pb were 0.1 ng L−1 and 0.5 ng L−1. Blank tests of Cd and Pb were carried out. Those blanks were lower than their LOD values. Natural levels of the concentrations of Cd and Pb were 1.4±2.1 ng L−1 and 3.1±1.3 ng L−1 in summer rain samples, and 0.96 ng L−1 and 24.3 ng L−1 in snow samples, respectively. The natural levels of the [nss-SO42−] values were 3.77±2.00 μmol L−1 in rain samples and 3.94 μmol L−1 in snow samples. These values were in agreement to those within the errors obtained on high-altitude remote areas on the Earth such as Antarctica, Greenland and Everest. Additionally, a trivial event involving eruption of a volcano at Mt. Sakurajima (Kagoshima prefecture) allowed the [nss-SO42−] value in rain samples (July 4 ∼ 9, 2013) to also be observed.</p>
収録刊行物
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- 分析化学
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分析化学 68 (1), 51-64, 2019-01-05
公益社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390845713050458112
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- NII論文ID
- 130007590431
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- NII書誌ID
- AN00222633
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- NDL書誌ID
- 029477646
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- ISSN
- 05251931
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可