Некоторые эколого-медицинские проблемы Севера

Based on the literature and our own data, a biogeochemical characteristic of the regions of the North is given. The poor knowledge of the microelement status of the inhabitants in the northern areas is shown. Data on technogenic pollution of the North's biosphere by heavy metals are presented. Emphasis is placed on the accumulation in the biosphere of mercury, whith its a neurotoxic effect. Exemplified by mercury and selenium, the antagonistic relationships between chemical elements in a living organism are shown, which may result in the formation of secondary microelements. The reason for the violation of the human physiological and biochemical parameters in the current North conditions against the background of environmental pollution is a violation of the nutrition structure and quality of. It is concluded that, in order to preserve the health of migrants and indigenous people, it is necessary to conduct geochemical zoning of modern Arctic regions, to identify the гpredispositionд of certain territories to biogeochemical endemicity, as well as to take preventive measures for protecting the population against environmentally dependent diseases.