[Environmental and medical consequences of mineral oil pollution of the geological medium].

The Khanty-Mansi Autonomous District (KMAD) is situated in the central part of Western Siberia and referred as to the discomfortably extreme areas equated to the Far North. The district occupies a prominent place in Russia's economy in oil and gas production and energy generation. More than 30 years' development of hydrocarbon deposits in the district has done great damage to the environment and nature. Northern ecosystems are slightly resistant to man's impact. The self-recovery and self-purification of landscapes occur very slowly in the North. The studies have established that steady raising of the production of oil and petroleum products in the KMAD results in a steady morbidity increase in all population groups. It is necessary to take timely preventive measures and better informed managerial decisions at the local and regional levels to keep unique north nature and the population's health in the North upon increasing man's exposure.