Lower levels of contaminants along the Norwegian coast – but still high concentrations of mercury in cod in some urban areas

The contaminant concentrations in the marine environment are decreasing along the Norwegian coastline – but there are some exceptions. In many urban areas, long-term trends for mercury in cod fillet are upwards. In the Inner Oslofjord, mercury levels in cod fillet have increased over the past 35 years, but leveled out during the past 10 years.