偏远高山湖泊沉积物中持久性有机污染物的沉积记录研究

被引:4
作者
谢婷
张淑娟
杨瑞强
机构
[1] 中国科学院生态环境研究中心,环境化学与生态毒理学国家重点实验室
关键词
持久性有机污染物(POPs); 高山; 湖泊; 沉积物;
D O I
暂无
中图分类号
X524 [湖泊、水库];
学科分类号
0815 ;
摘要
持久性有机污染物(POPs)因具有半挥发性,可随大气长距离传输迁移到偏远的高山地区,对当地生态环境造成潜在威胁,因而POPs在这些地区的归趋及行为受到广泛关注.偏远高山地区环境中的POPs主要来源于大气沉降过程,湖芯能较好地保存大气污染物的沉降信息以及年代信息,被称为"天然档案室",常被用于研究污染物的沉降历史和演变规律.本文首先介绍了几种常用于湖芯定年的放射性核素定年方法,然后综述了不同区域高山湖芯中POPs的时空变化趋势以及影响因素,最后针对偏远高山沉积物研究存在的不足对未来研究提出了几点建议.
引用
收藏
页码:1791 / 1801
页数:11
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