The role of chemical river runoff in the anthropogenic transformation of the state of the aquatic environment in the Enisei mouth area

摘要

Analysis of long-term regime hydrochemical data collected by the State Service of Environmental Monitoring (SSEM) was used to assess the anthropogenic load on the near-delta area of the Enisei mouth area near Igarka and Dudinka towns. Main trends in the accumulation of biogenic compounds and pollutants, such as oil products, phenols, and copper and iron compounds are identified. It is shown that the current anthropogenic load and the degree of aquatic environment pollution bring about a trend toward the transition of the Enisei near-delta ecosystem from equilibrium into a crisis state.