【摘要】 利用索氏提取技术和GC/MS测定,分析了太湖宜溧河水系中13个样点沉积物中的多环芳烃(PAHs),并利用芳香类不可分辨鼓包峰的检出、多环芳烃组分协相关因子检验及PAHs特征化合物指数,分析了太湖流域宜溧河水系中各地区的PAHs污染来源差异,并结合宜溧河所在地区工业布局和环境特征得到了验证。溧阳附近PAHs主要来自于油类污染和染料工业的影响;宜兴市附近PAHs来源与溧阳不同,主要与现代煤烟型污染有关。从水系的干支流对比中发现,主干河道中沉积物PAHs污染来源比支流复杂的多,存在多种污染源交叉作用的情况。更多还原

【Abstract】 Polycyclic aromatic hydrocarbons (PAHs) in the sediments of the Yili River system in Lake Taihu are analyzed by Soxhlet extraction and GC/MS technology. Aromatic unresolved complex mixtures (AUCM), correlation factors test (CFT) and PAHs indices, combined with the industry geography and environment status of Yixing and Liyang cities located in the center of the Yili river system, Lake Taihu, are used to indicate the sources of PAHs in sediments. The river sediment around Liyang is mainly influenced by petroleum and phthalocyanine industry; and the sediment around Yixing is related with the combustion pollution. From the comparison of the trunk rivers and their tributaries, it is found that the PAHs source of the sediment in the trunk rivers is much more complicated than that in the tributaries. There existed a multi source pollution in the trunk rivers.<P>更多还原