摘要
以直链烷基苯(linear alkyl benzenes,LABs)为人文活动示踪物,研究其在黄河三角洲潮间带环境中的分布和降解特征。沉积物样品采集于2007年9月、2008年4月和7月,结果表明,调查区域表层沉积物中LABs(C10～C14)含量为(0.33～37.33)×10-6(干重),呈现由近岸向离岸,由接近河口区向远离河口区逐渐降低的趋势,反映出人文活动对潮间带的水平影响过程。沉积物柱状样中LABs(C10～C14)的含量为(5.67～79.67)×10-6,其随深度的波动变化,表征出该区域中心城市洗涤剂用量的季节特点和年度变化。
The surface and column sediments were collected and analyzed in the intertidal areas of the Yellow River Delta in Sep.2007,and Apr.Jul.2008,in order to study the characteristics of distribution and degradation of linear alkyl benzenes（LABs）.The concentrations of total LABs（ΣLABs） in the surface sediments ranged at（0.33～37.33）×10-6（dry weight）,showing a decreased tendency from near shore to off shore areas,as well as that from close estuary to far estuary.This tendency is corresponded with the horizontal impact of anthropogenic activity.The ΣLABs in the column sediments were located at（5.67～79.67）×10-6（dry weight）,waving at about 9 cm intervals by depth,which showed that the seasonal and annual variations of detergent dosage from the local city.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2010年第5期728-732,共5页
Marine Environmental Science
基金
黄河三角洲蛤类高生产力维持机制研究(40490262)
