Environmental Monitoring, Mass Spectrometry, Rivers - chemistry, Quebec, Sewage - analysis, Reference Values, Colorimetry, Colony Count, Microbial, Rivers - microbiology, Seasons, Water Pollutants, Chemical - analysis, Sewage - microbiology
Antarctic Regions, Polychlorinated Biphenyls - analysis, Environmental Monitoring, Metals, Heavy - metabolism, Gastropoda - metabolism, Organotin Compounds - metabolism, Polychlorinated Biphenyls - metabolism, Water Pollutants, Chemical - analysis, Water Pollutants, Chemical - metabolism, Animals, Organotin Compounds - analysis, Geologic Sediments - chemistr...