[Comparative characteristics of lead and cadmium intoxication in the Khanty-Mansi autonomous district].

The Khanty-Mansi Autonomous District (KMAD) occupies a prominent place in the economy of Russia in oil and gas production and energy generation. The development of hydrocarbon raw material extraction in the district does great damage to the environment and nature. This results in the accumulation of toxic chemical elements in man. The levels of lead, cadmium, calcium, and zinc were measured in the hair of indigenous and non-indigenous populations of the district. High lead and cadmium and low calcium and zinc concentration were found in indigenous adults and children in the KMAD.

[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.

[Estimation of the students nutritional status in Surgut Pedagogical University].

The analysis of the students nutritional status in Surgut State Pedagogical University with the help of the special program "ASPON--nutrition", showed that most of the student' population consumes insufficient quantity of albumens, carbohydrates and vitamins A, E, C and calories. Recommendations for correction of macro- and micronutrients status for the students of the North higher educational institution were developed.

[The selenium status of native population and immigrants in Khanty-Mansiisk autonomous region].

The results of the selenium status of native population and immigrants living in the North-West of Russia are presented. Hair selenium concentration was determined by means of ICP-AES method. Decreased levels of selenium status for Khanty-Mansiisk autonomous region's inhabitants were established (adults and children).