Development of a method for identification and quantification of polycyclic musks in sewage water
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- Master's theses (KBM) 
Polycyclic musks are a class of fragrances used as additives in personal care products. Because of their use patterns, the majority ends up in wastewater, and ultimately the environment through sewage effluents and use of sewage sludge. Polycyclic musks have a relatively low acute toxicity, but due to possible long-term toxicities to aquatic species and a potential for bioaccumulation, the fate and release of these compounds to the environment should be studied further A method for the determination of polycyclic musks in sewage water, using solid phase extraction and GC-MS, was developed. The method was applied for identification and quantification of the polycyclic musks: Cashmeran (DPMI), Celestolide (ADBI), Phantolide (AHDI), Galaxolide (HHCB) and Tonalide (AHTN) in influent and effluent samples from a sewage treatment plant at Bekkelaget, Oslo. HHCB and AHTN were detected in influent and effluent samples in maximum concentrations of 7040 and 1967 ng/l, and 486 and 85 ng/l, respectively, while DPMI, ADBI or AHDI were not detected in any of the sewage samples. LOD for the analyzed musks were determined to be in the low ng/l, and varied from 1,1 ng/l (AHTN) to 18,7 ng/l for DPMI. The reported values of polycyclic musk in sewage indicate that use of these compounds have not been reduced in Norway in recent years, and may possibly have increased.