Monitoring of atmospheric air quality in the territory of the Chayanda oil and gas condensate field

The study is becoming particularly relevant due to the growing human impact on the ecosystems of the Arctic and Subarctic caused by the intensive development of oil and gas fields. One of the largest and significant facilities in the Power of Siberia gas pipeline is the Chayanda oil and gas condensate field located in Yakutia. The operation of any field at different stages of development is accompanied by emissions of sulfur dioxide, nitrogen oxides, methane and carbon monoxide. This fact requires constant monitoring and analysis to minimize environmental risks in the region. The purpose of the work is to conduct a comprehensive analysis of the air condition at the Chayanda license area in 2021–2023. For this purpose, data from industrial environmental monitoring was used. Research methods: instrumental measurements, statistical data processing, cartographic analysis of the spatial distribution of pollutants and assessment of meteorological parameters. The results showed that, in general, the quality of atmospheric air in the field meets regulatory requirements, while local exceedances of the maximum permissible concentrations were recorded during the development period. The practical value of the work lies in the development of recommendations for reducing emissions, including the modernization of treatment systems, optimization of traffic flows, monitoring of methane leaks and proposals for the design of field development. The implementation of these measures will lead to a reduction in pollution by 30-40%. The data in this article can be used in the design and improvement of environmental control at industrial facilities in the Far North.