Influence of the elemental composition of water and soil on the environmental portrait of teenagers in Khabarovsky Kray

The results of studying the content of Fe, Сu, Mo, Zn, Co, Se, Th and U in drinking water, soil and hair of teenagers of different ethnic groups (Nivkhs, Evens, Russians) living in the Khabarovsk Territory are presented. One of the priority directions of the regional policy of the Khabarovsk region is the preservation of the health of indigenous people. In the conditions of a biogeochemical province, the organism develops adaptive mechanisms that compensate for the imbalance of a number of microelements in the environment which occurred for many generations. However, in the areas of compact residence of the indigenous population, there is an increase in the illnesses from 2010 to 2020 among the Nivkhs (Mykolaiv district) and Evens (Okhotsk district) by 1.8 times and 1.4 times, respectively, which indicates the presence of signs of depletion of the functional reserves of the body of indigenous people. In this regard, the assessment of the ecological state of the environment and the analysis of the content of chemical elements in the hair, reflecting the duration and nature of their entry into the organism, is of particular relevance.