Benthic amphipod, Contaminated sediment, Multivariate statistics, Greenland, Field study, Biomarkers - metabolism, Geography, Animals, Amphipoda - growth & development, Arctic Regions, Environmental Monitoring - methods, Polycyclic Aromatic Hydrocarbons - analysis, Geologic Sediments - chemistry, Metals, Heavy - analysis, Seawater - chemistry, Water Pollutan...