Table 5.2.2. Positions and data for the sediment sampling stations collected in November 1997. Concentration levels of butylitn in sediment, N.D.: not detected (less than 1 µg/kg dw (as Sn) Station Lat.   Long. Depth Distance to Nuuk Harbour. TBT DBT MBT Organic content   TBT ratio to organic N W m km µg/kg dw µg/kg dw µg/kg dw in % S1  Sandkaj (Sand quay) 64°10.2   51°43.5     32   0 9.7 ± 3.4 3.9 ± 1.0 N.D. 1.3 746 S2  Havnen (The harbour) 64°10.5    51°43.5     21   0 171   ± 32 9.6 ± 1.1 N.D.   9.3 1839 S3  Hundeøen 64°09. 0   51°47.2    182        4 N.D. N.D. N.D. 3.1 -