What specific pollutant is noted as being concentrated in the blubber of Baltic Sea seals, affecting their systems?

Answer

PCBs

Pollution in the Baltic Sea leads to high concentrations of contaminants, specifically mentioning PCBs, within the seals' blubber, which can negatively impact their immune and reproductive functions.

What specific pollutant is noted as being concentrated in the blubber of Baltic Sea seals, affecting their systems?
populationconservationmammalwildlifeseal