环境镉污染的回顾监测——树木年轮分析  

A Retrospective monitoring on environmental pollution of Cadmium: Analysis on annual ring of trees

作　　者：岳麟[1] 蔡诗文[2] 

机构地区：[1]中国预防医学科学院环境卫生监测所,北京100021 [2]中国预防医学科学院环境卫生与卫生工程研究所

出　　处：《卫生研究》1992年第6期295-298,共4页Journal of Hygiene Research

基　　金：卫生部1985年医学科研招标项目

摘　　要：树木年轮分析可用作环境镉污染的回顾监测。结果表明,25年来污染区受到不同程度的镉污染。在树木年轮含镉量与其宽度之间存在明显负相关,含镉量高时,年轮宽度变狭,说明当地镉污染影响了树木的生长。The analysis of annual rings in trees was used to monitor retrospectively environmental Cadmium pollution This study demonstrated that Cadmium had polluted the irrigated area to various extent for the past 25 years. There was significant negative correlation between the cadmium content of atree and the width of its annual rings When the cadmium content was higher, the annual rings became narrower, suggesting that the cadmium pollution in the local polluted area had affected the growth of the trees. Combining with meal survey of localresidenfs, the Cadmium intake of local residents via digestive tract can be estimated year by year.

关 键 词：镉污染 回顾监测 树木年轮 

分 类 号：X835[环境科学与工程—环境工程]