Canada. Inland Waters Directorate.

Subjects

Water quality, Water quality management, Pollution, Water, Environmental aspects, Reference pamphlets, Herbicides, Water Pollutants, Analysis, Environmental aspects of Herbicides, Measurement, Stream measurements, Data processing, Environmental aspects of Pesticides, Groundwater, Hydrology, Pesticides, Standards, Adverse effects, Air, Aquatic ecology, Aspect de l'environnement, Bibliography, Biphényles polychlorés, Canada

Places

Canada, Ontario, Gloucester, Gloucester, Ontario, Great Lakes, Great Lakes Region, Liard River, Mackenzie River, Northwest Territories, Ottawa River (Québec and Ont.), Saint John River Watershed (Me. and N.B.), St. Lawrence River