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Book DOI: 10.21467/abstracts.93 industrial development of the territory has led to the formation of significant foci of pollution and environmental degradation [4]. The license area reaches 270 thousand km2, i.e. 37% of the territory of the Yamalo-Nenets Autonomous Okrug. Therefore, the level of anthropogenic impact during the development of mineral resources becomes decisive in the formation of the environmental situation throughout the district. The main directions of geoecological research in the territory of the Yamalo-Nenets Autonomous Okrug: the use of remote sensing methods for monitoring the Arctic territories, temperature monitoring of the permafrost zone, biogeochemical indicators of soil pollution, features of chemical pollution of soils in the area of oil and gas condensate fields, the influence of technogenic factors on surface waters in oil production areas, transformation of plant and soil cover, bottom sediments of rivers and lakes. However, the issues of a comprehensive analysis of the geoecological and economic problems of the oil and gas industry in the Arctic, and the Yamalo-Nenets Autonomous Area in particular, are little studied and relevant. It should be noted that numerous geoecological studies of the effects of OGI on the components of the environment, carried out by different authors, are scattered, do not have general conclusions. In addition, data on the assessment of environmental damage and the cost of remediation measures are not provided, which is necessary for the development of scientific recommendations on environmental management in the region [1]. Thus, it is justified and relevant to use a comprehensive environmental and economic methodology for comparing environmental damage from the impact of oil and gas facilities on environmental components and reclamation costs. The authors collected a collection of soils, bottom sediments, water in the area of mothballed oil and gas wells, made an assessment of the state of the environment using a set of methods and taking into account the low cleaning ability of the Arctic ecosystems, made recommendations for further monitoring of the state of the environment in the area. We continue investigations on other mothballed deposits of the Yamalo-Nenets Autonomous Okrug to make decisions on the liquidation of facilities or the restoration of disturbed territories. Funding: This research was funded by the BASIC RESEARCH PROJECT, project number 0266-20190008.

Monitoring and Assessment of the Environmental Consequences and Risks of the Oil and Gas Field Development