CONTRIBUTIONS OF INDUSTRIAL-AREAS OF THE NORTHERN-HEMISPHERE TO AIR-POLLUTION IN THE RUSSIAN ARCTIC

Synoptic conditions of a long-range air mass transport into the Russia n Arctic in March and April 1981-1990 were analyzed from six-day-trave ltime trajectories plotted from daily synoptic maps of the 850-hPa iso baric surfaces. In spring, passive pollutants are transported most eff iciently into Severnaya Zemlya Archipelago from the area of Norilsk an d approximately one half as efficiently from the Kola Peninsula and fr om the Pechora basin. The efficiency of the transport from northern Eu rope and Yakutia is approximately one third of the maximum. Pollutant transport to Wrangel Island in spring is only efficient from Alaska an d Yakutia. The efficiency of pollutant transport from other regions is less than one fourth of the maximum. An analysis of the composition a nd intensity of atmospheric emissions of industrial areas of the North ern Hemisphere revealed the most significant regional sources of anthr opogenic chemical elements: Europe, Norilsk, and the Urals for the cen tral Arctic, and Alaska and western Canada for the eastern Arctic.