Muskstoffer i punktkilder og i det akvatiske miljø. NOVANA screeningsundersøgelse. Bossi, R., Bügel Mogensen, B. og Johansen, E. 2009. Danmarks Miljøundersøgelser, Aarhus Universitet. 31 s.- Arbejdsrapport fra DMU nr. 255.
In this screening investigation six polycyclic musk compounds have been analysed in wastewater and sewage sludge from five municipal wastewater treatment plants (WWTP) in Denmark, together with water and sediment from the relative recipients.
Galaxolide and tonalide had the highest concentrations in all investigated media. This corresponds to the high concentrations of these two compounds in consumer products.
About 10-20% of the polycyclic musk compounds in the WWTP inflow were found in the outflow water. The major part of the compounds present in the inflow water was adsorbed to the sewage sludge.
Polycyclic musk compounds were also found in marine and fresh surface water and sediment in the five investigated recipients. The concentrations of galaxolide and tonalid found in surface and marine water, as well as in sediment, were in the range 10 to 100 times lower than PNEC values (Predicted No Effect Concentration).
On the basis of this investigation it can be concluded that the measured concentrations of galaxolide and tonalide do not represent a risk for the aquatic organisms in the investigated recipients.
Full report in Danish in PDF-format (305 kB).
