Abstract
Atmospheric concentrations of aerosol chemical species and SO2 have been measured at Tiksi, Yakutsk and Norilsk in Siberia from 1993. Concentrations of SO42-, Pb, Cu, Ni and V at Tiksi increase in winter and spring, and decrease in summer. Soil, moss and larch leaf samples were collected at Norilsk and Yakutsk, and soil samples at Tiksi. Concentrations of SO42-, Ni and Cu in the moss and larch leaf samples decreased with the distance from nickel and copper smelters in Norilsk. Moss and larch leaf, thus, can be used as bio-monitor of the air pollution. Concentrations of pollutants in the surface soil were higer than those in the soil 20-30cm below in Norilsk and Tiksi. It suggests that the long range transported atmospheric pollutants deposit on the surface and accumulate in the upper layer of permafrost in the Siberian Arctic.
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