Trace elements composition of surface snow in the polar zone of northwestern Siberia: the impact of urban and industrial emissions

Environmental Monitoring and Assessment
Roman PozhitkovEkaterina Tomilova

Abstract

In order to evaluate the level of atmospheric pollution in the north of Western Siberia, we studied the composition of urban snow in the vicinity of the Tazovsky settlement as well as in the area of Zapolyarnoye-the largest natural gas field in Russia in terms of a total extraction volume. Our results indicate that anthropogenic activities have caused an increase in electric conductivity and pH values of meltwaters. Concentrations of dissolved and particulate forms of trace elements (Fe, Mn, Ni, Cr, Cu, Pb, Zn, and Cd) were determined using atomic absorption spectroscopy. Dissolved forms of Cd, Zn, and Mn and particulate forms of Cu, Fe, and Ni prevailed in meltwaters of background territories. Human-affected territories were characterized by a predominance of particulate forms of trace elements (except Cd), which indicated increased dust deposition rates. For Cu, Mn, and Fe, mean values of contamination factor (CF) exceeded background levels by 4.4, 4.7, and 6.6 times, respectively. At some sampling sites, concentrations of trace elements exceeded background levels by 10-111 times. The concentration of Zn in our study area was higher than those in other oil and gas fields located in polar and boreal regions. The Cd concentrati...Continue Reading

References

Dec 14, 2004·The Science of the Total Environment·Patrice de CaritatJudy E Vaive
Sep 26, 2008·Journal of Environmental Sciences (China)·Jing AnLiping Ren
Sep 11, 2014·Environmental Science and Pollution Research International·Zhiyuan CongXin Wan
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Apr 4, 2015·Environmental Monitoring and Assessment·Patrycja SiudekJerzy Siepak
Mar 13, 2016·Journal of Environmental Sciences (China)·Hanna SaloJoni Mäkinen

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