岩矿测试2011，Vol.30Issue(1)：27-32,6.
沈阳市细河周边农田土壤和大气中有机氯农药和多氯联苯初步研究
Preliminary Study on Distribution of Organochlorine Pesticides and Polychlorinated Biphenyls in Surface Soils and Atmosphere Along the Xihe River in Shenyang City
摘要
Abstract
The concentration of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in surface soils and atmosphere along the Xihe River in Shenyang city were determined to study the residual levels and environmental behaviors of these compounds. Concentrations of HCHs and DDTs were in the range of 2.32 ～ 15.90 ng/g with average value of 8.99 ng/g and 9.06-111.6 ng/g with average value of 37.08 ng/g, respectively. The mean concentration of 7 kinds of PCBs was 1.01 ng/g. Results showed that concentrations of OCPs and PCBs in most sampling sites did not exceed the limits of the national environment quality standards for soils. The results also indicated that although lindane might be used in recent years no DDTs input from new pollution sources were found. And DDTs residuals in soils from some sites posed a potential threatening to the ecosystem. The mean concentrations of HCHs, DDTs and PCBs in air samples were 18.97 ng/m3 , 42. 27 ng/m3 and 20. 59 ng/m3 respectively, which means that long distance atmospheric transport of the OCPs may play a significant role in pollution in these areas. The fugacity model was used to study the environmental behaviors of HCHs and DDTs and escaping tendency of HCHs and DDTs from soils to ambient air was found in the studied area.关键词
有机氯农药/多氯联苯/土壤/大气/逸度/细河分类
农业科技引用本文复制引用
薛源,杨永亮,万奎元,吴学丽,朱晓华,王晓春,罗松光..沈阳市细河周边农田土壤和大气中有机氯农药和多氯联苯初步研究[J].岩矿测试,2011,30(1):27-32,6.基金项目
科技部国际合作项目资助(2006DFA21280) （2006DFA21280）
国家自然科学基金面上项目资助(40773010) （40773010）
