Chemicals of emerging concern in marine specimens of the German Environmental Specimen Bank

  • 25 november 2020

Biological sensors

To provide information on emerging contaminants in marine biota, the German Environmental Specimen Bank (ESB) samples blue mussels and eelpouts from coastal sites in the North and Baltic Seas on a regular basis. Blue mussels and eelpout filets and livers are shock-frozen, cryo-milled to a homogenous powder and annual composite samples are prepared for every site and specimen.

The study (carried out on already existing data from former projects) presents data on the presence of 19 emerging flame retardants and degradation products, 40 PFASs and 3 cyclic volatile methylsiloxanes (cVMS) in these composite samples.

Need for further monitoring

In summary, the study indicates that at least the emerging flame retardants DP and Dec 602 and the long-chain perfluoroalkyl substances PFNA, PFDA, PFUnDA, and PFDoDA should be further considered for monitoring in the North and the Baltic Sea, e.g., when establishing lists of relevant contaminants through regional or subregional cooperation.  Member States are requested to establish such lists of other contaminants, i.e., from offshore sources, that may lead to pollution in the marine region or subregion.

The study “Chemicals of emerging concern in marine specimens of the German Environmental Specimen Bank” by Annette Fliedner, Heinz Rüdel, Annekatrin Dreyer, Ulrike Pirntke and Jan Koschorreck was published in Environmental Sciences Europe.