In accordance with the Memorandum of Understanding between the Baltic Marine Environment Protection Commission (HELCOM) and the United Nations Economic Commission for Europe (UN ECE) MSC-E continued cooperation with HELCOM and carried out evaluation of airborne pollution load of heavy metals and POPs to the Baltic Sea. This work is performed on the basis of the long-term contract between EMEP and HELCOM.

In 2020 long-term variations of Cadmium, Lead, Mercury, PCDD/Fs, PCB-153, and B(a)P deposition fluxes to the Baltic Sea were estimated for the period 1990-2018. Along with this, source apportionment of annual deposition was carried out for 2018. Results of the assessment were summarized in the Joint report of the EMEP Centres for HELCOM [Gauss et al., 2020] and presented in the indicator fact sheets, published on the HELCOM website.