the surface waters of the Far North have a small potential for selfpurification due to the low level of mass and energy exchanges in ecosystems of northern latitudes. One of the areas where the problem of high-quality depletion of water resources has emerged is the Kola North and, in particular, the city of Murmansk. Murmansk is the capital of the region and the largest city in the world located in the Arctic Circle, as well as one of the largest ports in Russia. The article studies the main sources of pollution of water bodies in the city of Murmansk.