Table 5.9.5: Sum concentrations of PAH (µg/kg ww) in invertebrates and macroalgae from three locations in Southern Greenland. Sand hopper: Gammarus sp. Periwinkle: Littorina saxatilis. Arctic wrack: Fucus distichus. Sweet tangle: Laminaria saccarina. Sea lettuce: Ulva lactuca. LMW/HMW: Ratio of sum 2-3 ringed compounds to 4-7 ringed. Perylene/ S Penta-PAH: Ratio of perylene to sum 5 ringed PAH. n=2 for periwinkle, others n=1. Species Station Year S  PAH S  higher PAH LMW/ HMW Alkylated / S PAH Perylene/ S Penta-PAH Sand hopper B 1999 98 57 4.1 0.5 0.2 Lugworm C 1999 370 320 1.1 0.2 0.2 Periwinkle C 1999 45 22 2.8 0.4 0.2 Bladder wrack B 2000 66 37 1.9 0.6 0.5 Bladder wrack C 2000 66 34 2.1 0.6 0.8 Bladder wrack D 2000 41 34 - 0.4 0.9 Arctic wrack B 2000 43 32 - 0.3 0.9 Sweet tangle B 2000 43 8.8 3.4 0.6 0.3 Sea lettuce B 2000 52 17 2.0 0.6 0.3 Enteromorpha B 2000 24 6.9 2.7 0.6 0.1