Environmental Monitoring, Animals, Water Pollution, Chemical - statistics & numerical data, Models, Chemical, Rivers - chemistry, Geologic Sediments - chemistry, Mercury - chemistry, Invertebrates, Water Pollutants, Chemical - analysis, Ontario
ice cores, air pollution, Arctic, mercury, snow, isotopes, Emissions, Atmospheric models, Combustion, Industrial areas, Isotope ratios, Information dissemination, Marine environment, Mining, Pollution, Ratios, Atmospheric composition, Wildlife, Stable isotopes, Coal, Centuries, Atmospheric precipitations, Chemical composition, Mercury (planet), Dating, Bays,...