岩矿测试2011，Vol.30Issue(2)：150-154,5.
长白山表层土壤中有机氯农药和多氯联苯的海拔高度分布特征
Elevational Gradients of Organochlorine Pesticides and Polychlorinated Biphenyls in Topsoils from Changbai Mountain
摘要
Abstract
Topsoils from an uncontaminated area of Changbai Mountain of Jilin province were generally less polluted by the organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), but it is more so than in other areas. The total concentrations of OCPs and PCBs in the topsoils showed a clear increasing trend with altitude, which can be interpreted as an Alpine condensation trap effect. Topsoil in the scenic spot of Changbai Mountain was slightly polluted by HCHs and DDTs (with each average value as of 12. 4 ng/g and 12. 3 ng/g respectively). The lower altitude area near Changbai Mountain had slightly higher concentrations of OCPs and PCBs, which indicated that agricultural activity gradually increased. The concentrations of HCHs and DDTs have not exceeded the national soil and environmental quality standards level I, but DDTs in some individual locations may cause a certain potential ecological risks to birds and soil organisms. The possibility is that lindane and dicofol are used in some sampling points. The concentrations of PCBs in topsoil samples from Changbai Mountain and its vicinity were 7. 3-31. 9 ng/g, with an average value of 17. 2 ng/g. PCB contaminated areas are mainly concentrated in places with an altitude of between 1450 m and 1800 m. 7 kinds of PCBs can be ranged by concentrations as follows: PCB 28 ＞PCB 52 ＞PCB 180 ＞PCB 138 ＞PCB 101 ＞PCB 153 ＞PCB 118.关键词
长白山/表层土壤/有机氯农药/多氯联苯/高山冷凝效应Key words
Changbai Mountain/ topsoils/ organochlorine pesticides/ polychlorinated biphenyls/ mountain cold-trapping分类
农业科技引用本文复制引用
万奎元,杨永亮,薛源,武振艳,朱晓华,吴学丽,王晓春,罗松光..长白山表层土壤中有机氯农药和多氯联苯的海拔高度分布特征[J].岩矿测试,2011,30(2):150-154,5.基金项目
科技部国际合作项目资助(2006DFA21280) （2006DFA21280）
国家自然科学基金项目资助(0773010) （0773010）
