Baltic Marine Environment
Protection Commission

Inputs of Nutrients and Hazardous Substances (PLC)

Pollution Load Compilations (PLC)

Pollution Load Compilations (PLC) are an important part of HELCOM´s assessment system on the state of the Baltic marine environment since 1987. The focus is on regularly compiling and reporting data on inputs of nutrients and selected hazardous substances entering the Baltic Sea.

The Compilations integrate annual reporting and periodic assessment. The annually reported data on the nutrients (N and P) and selected hazardous substances – both air and water borne – are used for calculation of the long term trends. All this will assist in understanding major tendencies within human pressures which affect the Baltic Sea.