| 北京西北郊降尘和降雨中稀土元素的浓度分布和来源的初步分析 |
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| 引用本文： | 李德成,王东红,彭安.北京西北郊降尘和降雨中稀土元素的浓度分布和来源的初步分析[J].环境科学学报,2001,21(5):640-642. |
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| 作者姓名： | 李德成 王东红 彭安 |
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| 作者单位： | 中国科学院生态环境研究中心国家重点环境水化学实验室,北京,100085 |
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| 基金项目： | 国家自然科学基金重大项目 (2 9890 2 80 1)资助 |
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| 摘 要： | 应用ICP－MS测定了从1998年10月至1999年9月共12个月的北京西北郊降尘中稀土元素的浓度，同时测定了从1999年4月至6月间8次降雨中的稀土元素的浓度，对降尘和降雨中稀土元素的分布模式进行了初步分析，结果表明降尘和降雨中稀土元素的分布与我国土壤稀土元素的分布模式基本一致，说明降尘和降雨中的稀土元素主要来源于地表土壤。
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| 关 键 词： | 稀土元素 降尘 降雨 浓度分布 污染源 北京 大气监测 |
| 文章编号： | 0253-2468(2001)-05-0640-03 |
| 收稿时间： | 2000/10/31 0:00:00 |
| 修稿时间： | 2000年10月31 |
Preliminary estimates of the distribution and source of REEs in dustfall and rain in Northwest skirt Beijing |
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| LI Decheng,WANG Donghong and PENG An.Preliminary estimates of the distribution and source of REEs in dustfall and rain in Northwest skirt Beijing[J].Acta Scientiae Circumstantiae,2001,21(5):640-642. |
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| Authors: | LI Decheng WANG Donghong and PENG An |
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| Institution: | SKLEAC, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085,SKLEAC, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 and SKLEAC, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
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| Abstract: | The dustfall samples from Oct. 1998 to Sep 1999 and rainwater samples from Apr. to Jun.1999 were collected in Beijing. The rare earth elements (REEs) concentrations in these samples were determined, and the REEs distribution patterns were preliminarily analyzed too. The results show that the REEs distribution patterns are similar both in these samples and in soil in China, which indicates that the sources of REEs in dustfall and rain samples are mainly come from topsoil. |
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| Keywords: | rare earth elements dustfall rainwater concentration distribution source |
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