Maintaining the annual nitrogen and phosphorus loads from rivers and in the form of atmospheric deposition into the Baltic Sea below the Maximum Allowable Input (MAI) established under the regional arrangements (HELCOM), which will allow the nutrient concentration in the sea to be reduced to a level not exceeding the threshold values that are in line with existing national and European Union recommendations and which guarantee the achievement or maintenance of good environmental status and do not cause adverse effects in the form of excessive algae growth, elevated concentrations of chlorophyll "a" in the water column, lowering the seawater transparency and the level of bottom water oxygenation, which in turn favors the proper development of pelagic and benthic habitats

Maintaining the current decreasing trend of changes in the level of annual nitrogen and phosphorus loads to the Baltic Sea from the Vistula, Oder, Pomeranian and coastal rivers, and decreasing tendency of nitrogen and phosphorus atmospheric deposition to achieve a reduction in nutrient concentrations to levels not exceeding the thresholds that are in line with recommendations of currently valid national and international legal acts and which guarantee the achievement or maintenance of good environmental status.

Maintaining the decreasing trend of nitrogen and phosphorus input to the sea influencing the limitation of excessive algae growth and, as a consequence, lowering the concentration of chlorophyll "a" in the water column below the acceptable threshold values, which are in line with the recommendations of currently valid national and international legal acts.

Maintaining the decreasing trend of nitrogen and phosphorus input to the sea influencing the limitation of excessive algae growth and, as a consequence, lowering the concentration of chlorophyll "a" in the water column below the acceptable threshold values, which are in line with the recommendations of currently valid national and international legal acts.

Maintaining the decreasing trend of nitrogen and phosphorus input to the sea influencing the limitation of excessive algae growth and, as a consequence, lowering the concentration of chlorophyll "a" in the water column below the acceptable threshold values, which are in line with the recommendations of currently valid national and international legal acts.

Maintaining the decreasing trend of the input of nitrogen and phosphorus compounds to the sea to limit the excessive development of plankton, including toxic cyanobacteria blooms.

Maintaining the decreasing trend of the input of nitrogen and phosphorus compounds to the sea to limit the excessive development of plankton, including toxic cyanobacteria blooms.

Maintaining the decreasing trend of nitrogen, phosphorus and organic matter input into the sea resulting in the lack of reduction of seawater transparency below acceptable threshold values, which are consistent with the recommendations of currently valid national and international legal acts, leading to disrupt the development of underwater vegetation

Achieving a higher level of oxygenation of bottom waters, especially in the deep sea zone as a result of maintaining a decreasing trend of nitrogen and phosphorus input to the sea, which will result in reduction in conditions causing the increase of oxygen consumption in bottom waters, mainly an excessive increase in the production of organic matter, which will result in lack of negative impacts on organisms living on the seabed and in adjacent waters and will limit the occurrence of internal recurrent enrichment of the ecosystem with phosphorus released from sediments.

Achieving a higher level of oxygenation of bottom waters, especially in the deep sea zone as a result of maintaining a decreasing trend of nitrogen and phosphorus input to the sea, which will result in reduction in conditions causing the increase of oxygen consumption in bottom waters, mainly an excessive increase in the production of organic matter, which will result in lack of negative impacts on organisms living on the seabed and in adjacent waters and will limit the occurrence of internal recurrent enrichment of the ecosystem with phosphorus released from sediments.

Limiting the excessive growth of opportunistic macroalgae, leading to disturbance of balance in benthic communities by maintaining a decreasing trend of input of nitrogen and phosphorus compounds to the sea.

Limiting the excessive growth of opportunistic macroalgae, leading to disturbance of balance in benthic communities by maintaining a decreasing trend of input of nitrogen and phosphorus compounds to the sea.

Limiting the excessive growth of opportunistic macroalgae, leading to disturbance of balance in benthic communities by maintaining a decreasing trend of input of nitrogen and phosphorus compounds to the sea.

Maintaining the decreasing trend of nitrogen and phosphorus input to the sea in order to reduce the adverse effects of reduced water transparency and oxygenation of bottom waters, which will result in increased share of long-living species in the structure of macrophytes in the places of their existence and increased depth of their occurrence.

Maintaining the decreasing trend of nitrogen and phosphorus input to the sea in order to reduce the adverse effects of reduced water transparency and oxygenation of bottom waters, which will result in increased share of long-living species in the structure of macrophytes in the places of their existence and increased depth of their occurrence.

Maintaining the decreasing trend of nitrogen and phosphorus input to the sea in order to reduce the adverse effects of reduced water transparency and oxygenation of bottom waters, which will result in increased share of long-living species in the structure of macrophytes in the places of their existence and increased depth of their occurrence.

Maintaining the decreasing trend of nitrogen and phosphorus input in order to achieve the improvement of the macrozoobenthos communities in the sea.