Abstract:Principal component analysis and multiple linear regression were applied to apportion sources of PCBs and OCPs in surface sediment of Haihe Estuary, China, based on the concentrations of PCBs and OCPs in 29 surface sediment samples. For PCBs, two factors were identified representing: unintentional produce and long-range air transmission. The contributions based on multiple linear regression of major sources were quantified as 55% for unintentional produce and 45% from air transmission. The mean contribution concentration of the two sources were 6.94ng/g and 9.42ng/g, respectively. For OCPs, two factors were identified representing used residue and input of new OCPs. The contributions based on multiple linear regression of major sources were quantified as 13% for used residue and 87% for new input of OCPs, and the mean contributions concentration of the two source were 21.18ng/g and 171.97ng/g, respectively. It is concluded that PCBs and OCPs in the surface sediment have close relations with the commercial production in the area, which means the improvement of the industrial structure and treatment of the produce waste residue are the keys to reduce the PCBs and OCPs pollution in surface sediment of Haihe estuary.
王泰, 黄俊, 余刚. 海河河口表层沉积物中PCBs和OCPs的源解析[J]. 中国环境科学, 2009, 29(7): 722-726.
WANG Tai, HUANG Jun, YU Gang. Source apportionment of polychlorinated biphenyls and organochlorine pesticides in surface sediments of Haihe Estuary. . CHINA ENVIRONMENTAL SCIENCECE, 2009, 29(7): 722-726.