Below the limit values
Recently, different limit values were introduced for four different per- and polyfluoroalkyl substances (PFAS) in fish. PFAS are environmental toxins that are found in varying amounts in the environment, and it is difficult to completely avoid them getting into our food. The Norwegian Food Safety Authority will nevertheless keep the level of the substances in food and drink as low as possible:
- Intake of PFAS via food and drinking water does not cause acute negative health effects, but certain PFAS substances are stored in the body for a long time. If you ingest PFAS over a long period of time, it can affect your health, says Sletta.
Only two of these substances, PFNA and PFOS, were found in measurable quantities in 2023, in 0.3 percent and 4 percent of the samples respectively. The levels were well below the set limit values.
Lice agent residues
In 2023, some discoveries were also made of other environmental toxins, and residues of two agents used against salmon lice (emamectin and imidacloprid), but the levels here were also below the limit value.
In addition, residues of two other substances that are used against salmon lice were found; cypermethrin and deltamethrin. These substances are also used as pesticides, and may have ended up in the fish through the feed. The levels were below the limit value, writes the Norwegian Food Safety Authority.
Residues of lice remedies have also previously been found in some samples, but all findings have been far below the limit values. Testosterone was detected in one sample, but this turned out to be due to contamination during sampling.