| 铅稳定同位素在沉积物重金属污染溯源中的应用 |
| |
| 引用本文： | 胡恭任,于瑞莲,郑志敏.铅稳定同位素在沉积物重金属污染溯源中的应用[J].环境科学学报,2013,33(5):1326-1331. |
| |
| 作者姓名： | 胡恭任 于瑞莲 郑志敏 |
| |
| 作者单位： | 华侨大学环境科学与工程系,厦门361021;中国科学院城市环境与健康重点实验室,厦门361021 |
| |
| 基金项目： | 国家自然科学基金项目(No.21077036,40673061); 福建省自然科学基金项目(No.2011J01273);中国科学院城市环境与健康重点实验室开放基金项目(No.KLUEH201004) |
| |
| 摘 要： | 稳定铅同位素是示踪环境重金属来源的重要手段.通过分析测定泉州湾周边地区常见端元组分及采集自泉州湾洛阳江河口潮间带24个表层沉积物的稳定铅同位素组成,利用铅同位素的指纹参数对沉积物中铅的来源进行示踪.结果表明,潮间带沉积物中的铅主要受汽车尾气、工业生产和污水排放的影响.其中,位于交通繁忙区的采样点因为受到工业及汽车尾气排放的双重影响,污染最为严重.不同来源端元的稳定铅同位素组成相差较大,利用端元组分及沉积物206 pb/207 Pb和208 Pb/(206 Pb+ 207 Pb)比值的差别,可以追溯沉积物中铅的来源.
|
| 关 键 词： | 铅稳定同位素 表层沉积物 重金属 泉州湾 |
| 收稿时间： | 2012/8/28 0:00:00 |
| 修稿时间： | 2012/10/30 0:00:00 |
Application of stable lead isotopes in tracing heavy-metal pollution sources in the sediments |
| |
| HU Gongren,YU Ruilian and ZHENG Zhimin.Application of stable lead isotopes in tracing heavy-metal pollution sources in the sediments[J].Acta Scientiae Circumstantiae,2013,33(5):1326-1331. |
| |
| Authors: | HU Gongren YU Ruilian and ZHENG Zhimin |
| |
| Institution: | 1. Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021;2. The Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021;1. Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021;2. The Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021;1. Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021;2. The Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021 |
| |
| Abstract: | Stable lead isotope has been widely used to trace the sources of heavy metals in environment. In this paper, the components of stable lead isotopes in the typical point-end matters and 24 surface sediment samples collected from the intertidal zone of Luoyang estuary in Quanzhou Bay were analyzed to trace the lead pollution sources in the sediments. The results showed that the lead pollution in the intertidal sediments was affected mainly by automobile exhaust, industrial effluents and waste water discharge. The samples collected from the busy traffic zones showed the most serious pollution due to the combined effects of the industrial effluents and the automobile emissions. Since different sources are associated with different lead isotope ratios, the components of 206Pb/207Pb and 208Pb/(206Pb+207Pb)in the point-end matters and the surface sediments could be used to trace the sources of lead contamination in the sediments. |
| |
| Keywords: | Pb stable isotope surface sediments heavy metals Quanzhou Bay |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
