Chinese Journal of Polar Research

ADVANCES IN POLAR SCIENCE ›› 2009, Vol. 20 ›› Issue (1-English): 48-56.

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Distribution of organochlorine pesticides and polychlorinated biphenyls in Ny-Ålesund of the Arctic

Ma Xindong, Wang Yanjie, Na Guangshui, Lin Zhongsheng, Zhou Chuanguang, Wang Zhen and Yao Ziwei   

  1. National Marine Environmental Monitoring Center, Dalian 116023, China
  • Online:1959-03-30 Published:1959-03-30
  • Contact: Ma Xindong

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Abstract:

Sediment, moss and animal-dropping samples were collected from Ny-Ålesund of the Arctic to investigate the distribution of organochlorine pesticides (OCPs) and polychlorinated biphenyls ( PCBs) in the Arctic area. OCPs and PCBs were analyzed using the cap illary gas chromatography ( GC2ECD ). Recoveries of three surrogateswere 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 congenerswere 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 of the major inputways of OCPs and PCB s in the Ny-Ålesund of the Arctic.

Key words: POPs, Ny-Ålesund, PCBs, OCPs