SPATIAL AND VERTICAL DISTRIBUTIONS OF PERFLUOROCHEMICALS IN SEDIMENTS FROM THE HUN RIVER, CHINA
Perfluorochemicals (PFCs) have received much attention on their distributions in various matrixes globally, however, little is known about their existences in sediments of water bodies. In this study, eight target PFCs were determined based upon the upper 10 cm surface sediment samples collected from four sites in the Hun River of northeast China, which received huge amount of industrial and domestic wastewater annually from the neighbouring areas. Instrumental analysis of sediment samples was performed via HPLC-MS/MS system, and results indicated that total concentrations of PFCs were determined in the range of 0.39 to 1.03 ng/g dry weight in sediments of this river. As the dominant PFCs contaminants in sediment samples, concentrations of PFOS and PFOA were ranged between 0.13 and 0.37 ng/g dry weight and from below LOQ to 0.17 ng/g dry weight, respectively, while those of the other six target analytes were below their LOQs at most of the sampling sites. Additional analyses on vertical distributions of PFCs in sectioned sediment samples from this river presented a decreasing trend of PFCs contamination with depth in the top 10 cm surface sediment of this river.
Bao J Jin Y Liu W Ran X Zhang Z
School of Environmental and Biological Science and Technology,Dalian University of Technology,Key La Life Sciences and Chemical Analysis,Agilent Technologies Co.,Ltd. (China),3 Wangjing North Road,Chao
国际会议
北京
英文
1-3
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）