Find documents by name, keyword, or question across the IEMA Ekati archive.
An educational guide describing the four main whale species found in the Northwest Territories—bowhead, beluga, narwhal, and killer whale—covering their biology, distribution, migration patterns, hunting practices, conservation status, and management by Canadian federal authorities.
This is an educational sketch about Atlantic and Pacific walrus species, covering their physical characteristics, distribution, behaviour, feeding ecology, reproduction, migration patterns, management by the Department of Fisheries and Oceans, and utilization by Inuit and other northern communities.
A comprehensive research binder containing bibliographic references and materials organized into four tabs covering air quality studies, aquatic research, wildlife monitoring, and miscellaneous environmental topics related to the Ekati Diamond Mine region in the Northwest Territories.
This conference paper presents field experiments conducted in April 1992 near Inuvik, Canada, investigating net fluxes of nitrate and sulfate between arctic snow surfaces and the atmosphere, with particular focus on the influence of solar radiation. Results show solar radiation had no significant effect on NO3 and SO4 exchange, while sulfate exhibited dry deposition in the second experiment with a calculated deposition velocity of 0.09 cm s⁻¹.
Field experiments near Inuvik, NWT measured spatial and temporal variations in snowmelt runoff chemistry across a 0.25 m² lysimeter with 16 compartments, demonstrating that solute concentration factors are inversely related to flow volume early in melt and converge as melt progresses, with implications for understanding heterogeneous flow path controls on meltwater chemistry.
This educational guide describes five seal species found in the Northwest Territories, detailing their biology, behavior, distribution, diet, reproduction, and cultural importance to Inuit populations. It includes management regulations and information on sustainable seal hunting practices in Canada.
This educational pamphlet provides a comprehensive overview of polar bears (Ursus maritimus) in the Northwest Territories, covering their physical description, habitat, behaviour, reproduction, and management. It details historical hunting practices, modern conservation efforts including quota systems and research programs, and contemporary threats including oil and gas exploration and chemical pollution.
The Northwest Territories Water Board published guidelines for the discharge of treated municipal wastewater in the NWT, establishing effluent quality criteria and receiving water quality objectives to protect public health and environmental quality. The document specifies treatment requirements, monitoring protocols, and licensing procedures for municipal waste systems across different receiving environments including streams, rivers, lakes, estuaries, and marine waters.
This 2nd edition NWT Wildlife Sketches guide provides a comprehensive overview of moose (Alces alces) in the Northwest Territories, including physical description, habitat requirements, distribution, behavior, reproduction, survival factors, and management practices. The document details moose ecology, their importance to northern communities, and management strategies including harvest controls and habitat enhancement initiatives.
The Northwest Territories Water Board's 1992 guidelines establish effluent quality standards and receiving water quality objectives for the discharge of treated municipal wastewater throughout the NWT, incorporating revised criteria based on empirical data and addressing summer/winter discharge differences, operational requirements, and site-specific considerations.
An educational pamphlet describing 13 species of diurnal birds of prey found in the Northwest Territories, including their identification, distribution, natural history, breeding behavior, and population trends. The document discusses pesticide impacts, protection legislation, and NWT research programs monitoring raptor populations.
An educational sketch describing the muskox (Ovibos moschatus) of the Northwest Territories, covering its evolutionary history, physical adaptations, behavior, reproduction, food, and management. The document traces the species' decline from overhunting in the 19th-20th centuries and its recovery under Canadian protection since 1917.
This Environmental Studies report (Volume II) presents research and monitoring results from 1983-1988 for the Norman Wells Pipeline, a 869 km buried oil pipeline in permafrost terrain, documenting pipe and ground thermal conditions, thaw depths, surface settlement, wood chip insulation performance, and overall terrain response to construction and operation.
United Nations Economic Commission for Europe report on post-project analysis (PPA) in environmental impact assessment, based on a task force led by Canada. The report analyzes 11 case studies from multiple countries to document approaches for using PPA to monitor project implementation, verify impact predictions, ensure compliance with conditions, and improve future EIA processes.
Catalog describing three CD-ROMs containing over 150 MEND (Mine Environment Neutral Drainage) technical reports from 1989-2000, available for purchase from the MEND Secretariat in Ottawa. The reports cover acidic drainage prediction, treatment, monitoring, prevention, and control strategies developed through cooperative research with mining industry and government partners.
A comprehensive overview study of surface water resources in the Coppermine River basin, Northwest Territories, examining water quantity and quality data collected by Environment Canada's Inland Waters Directorate, with analysis of hydrologic characteristics, regional context, and implications for future mineral and hydroelectric development.
This academic article examines environmental impact assessment (EIA) failures and successes for the James Bay hydroelectric project in northern Quebec, analyzing six case studies of predicted and unpredicted impacts on Cree and Inuit populations. The author argues that impact prediction is intrinsically difficult due to nonequilibrium systems and identifies the need for more comprehensive ecosystem approaches, integration of social and environmental monitoring, and focus on manageable subsystems rather than linear, mechanistic assessments.
This report develops site-specific water quality criteria for nitrogen compounds (nitrate, nitrite, and ammonia) in the Canadian portion of the Flathead River Basin to support fish and aquatic life and address concerns about potential impacts from proposed coal mining and oil/gas development. The criteria account for nitrogen cycling processes, physical and chemical factors affecting toxicity, and the specific life stages and species of fish present in the system.
This is the Department of Fisheries and Oceans' national policy for fish habitat management in Canada, presented to Parliament in October 1986. The policy establishes a framework for achieving a net gain in the productive capacity of fish habitats through conservation, restoration, and development goals, guided by a 'no net loss' principle and implemented through eight strategies including protection, compliance, integrated resource planning, research, and cooperative action.
This study compared stream habitats and grayling populations in reaches affected by instream granular materials mining during Trans Alaska Oil Pipeline construction (1974-1977) with undisturbed control reaches in five northern Alaskan streams, finding that mining typically reduced habitat quality, fish size, and biomass, with effects persisting 4-9 years after disturbance, though one exceptional case showed improved juvenile grayling habitat from increased depth.