Distribution of organochlorine pesticides and polychlorinated biphenyls in Ny-(A)lesund of the Arctic

Sediment, moss and animal-dropping samples were collected from pesticides (OCPs) and polychlorinated biphenyls (PCBs) in the Arctic area. OCPs and PCBs were analyzed using the capillary gas chromatography (GC-ECD). Recoveries of three surrogates were at a range of 69.5～92.2% (mean: 78.8%), 75.1～112.1% (98.5%) and 67.7～95.1% (79.5%), and the relative standard deviations were 6.7%, 8.0% and 11.3%, respectively. The major monomers of OCPs were hexachlorocyclohexanes (HCHs) and DDTs. Their concentrations were at a range of 0.86～4.50 ng/g (mean: 2.24 ng/g) and 0.22～1.09 ng/g (mean: 0.55 ng/g). The concentrations of PCBs were 0.20～3.25 ng/g (mean: 0.84 ng/g) and the major congeners were tetra-, penta-, and hexa-PCBs, which were up to 23.8%、26.7% and 32.3% of total PCBs, respectively. Based on the results of the ratio analysis and the principal component analysis, the atmospheric transport is believed be one

作 者： Ma Xindong Wang Yanjie Na Guangshui Lin Zhongsheng Zhou Chuanguang Wang Zhen Yao Ziwei   作者单位： National Marine Environmental Monitoring Center, Dalian 116023, China  刊 名： 极地研究（英文版）  英文刊名： CHINESE JOURNAL OF POLAR SCIENCE  年，卷(期)： 2009 20(1)  分类号： P4  关键词： POPs   Ny-(A)lesund   PCBs   OCPs