Concentrations of toxic agents near Norilsk surpass allowable safe limits
Scientists explain the phenomenon by the natural conditions dictated by the close proximity of deposits of sulfide ores
TASS, December 22. The concentrations of non-ferrous metals in soils and plants in the Norilsk Industrial District are above the allowable safe limits by a few times. Scientists explain the phenomenon by the natural conditions dictated by the close proximity of deposits of sulfide ores, reads the final report of the Great Norilsk Expedition of the Russian Academy of Sciences’ Siberian Branch.
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“The concentrations of potentially hazardous elements in soils, which develop in conditions of the natural geochemical anomalies of ore fields, may exceed the average concentrations in the crust and the allowable safe concentrations by many times,” the report reads. “From soils the toxic elements get into the plants and make their way along trophic chains. Thus, the region has a hi