| 硼及其同位素对水体污染物的示踪研究 |
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| 引用本文： | 郎赟超,刘丛强,赵志琦.硼及其同位素对水体污染物的示踪研究[J].地学前缘,2002,9(4):409-415. |
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| 作者姓名： | 郎赟超 刘丛强 赵志琦 |
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| 作者单位： | 1. 中国科学院,地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002;中国科学院,研究生院,北京,100039
2. 中国科学院,地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002 |
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| 基金项目： | 中国科学院重要方向项目 (KZCX2 10 5 ) |
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| 摘 要： | 硼的易溶性和硼化合物的广泛使用 ,以及污水处理过程中除硼的困难 ,最终导致地表地下水体富集硼及有关污染物。海滨地下水受到海水入侵 ,硼含量及 ρ(B) / ρ(Cl)比值发生明显变化。混合、吸附、水岩等作用使得硼同位素发生分馏 ,显著区别于区域背景值。因此 ,结合其它同位素、水化学等信息 ,硼及其同位素作为良好示踪剂为研究水圈中物质的地球化学循环过程提供了新的手段。文中总结了部分天然水体的硼含量和硼同位素组成特征 ,综述了近年来用硼同位素示踪水体的污染物来源、程度和范围等方面新的研究成果。
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| 关 键 词： | 硼 硼同位素 污染源 |
| 文章编号： | 1005-2321(2002)04-0409-07 |
| 修稿时间： | 2002年5月14日 |
A REVIEW OF STUDIES ON SOURCES AND MIGRATION OF VARIOUS CONTAMINANTS IN SURFACE AND GROUND WATERS BY USING BORON AND ITS ISOTOPES |
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| LANG Yun-chao ,LIU Cong-qiang,ZHAO Zhi-qi.A REVIEW OF STUDIES ON SOURCES AND MIGRATION OF VARIOUS CONTAMINANTS IN SURFACE AND GROUND WATERS BY USING BORON AND ITS ISOTOPES[J].Earth Science Frontiers,2002,9(4):409-415. |
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| Authors: | LANG Yun-chao LIU Cong-qiang ZHAO Zhi-qi |
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| Institution: | LANG Yun-chao 1,2,LIU Cong-qiang1,ZHAO Zhi-qi1 |
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| Abstract: | Boron is highly enriched in surface and ground waters because of its high solubility in water, wide application of its compounds in human life and difficulties of its removal from wasted water. Ground waters in seashore normally have high boron contents and variable B/Cl ratios. Boron isotopes are fractionated during mixing, absorption/desorption and water/rock interactions; and distinguishable from its average background values. Accordingly, boron and its isotopes are, in combination with isotopes of other elements and water chemistry, powerful tools to study geochemical cycling of materials in hydrosphere. This article summarizes the characteristics of boron and its isotopic compositions in natural waters, and reviews newly-obtained research results of application of boron and its isotopes to trace the contaminant sources, the extension and the intensity of contaminations in natural water bodies. |
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| Keywords: | boron boron isotope contaminant sources |
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