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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 作者單位: National Marine Environmental Monitoring Center, Dalian 116023, China 刊 名: 極地研究(英文版) 英文刊名: CHINESE JOURNAL OF POLAR SCIENCE 年,卷(期): 2009 20(1) 分類號(hào): P4 關(guān)鍵詞: POPs Ny-(A)lesund PCBs OCPs