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Air Quality Monitoring Program (AQMP), Appendix A, Ekati Diamond Mine (Arctic Canadian Diamond Company, May 2025)
1 May 2025Report
The 2024 Air Quality Monitoring Program (AQMP) report for the Ekati Diamond Mine presents results of meteorological and air quality monitoring data collected throughout 2024, including particulate sampling, continuous air monitoring, dustfall measurements, and greenhouse gas emissions. The report documents that air quality parameters remained generally below regulatory standards, with 157.4 kt CO2e of greenhouse gas emissions released in 2024, approximately 8% lower than 2023.
Air Quality Particulate Matter Greenhouse Gas
Air Quality Monitoring Program (AQMP), Appendix D to the 2022 Environmental Agreement and Water Licence Annual Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, April 2023)
1 April 2023Report
The 2022 Air Quality Monitoring Program (AQMP) report for the Ekati Diamond Mine presents meteorological and air quality monitoring data collected throughout 2022, including ambient particulate matter, gaseous contaminants, dustfall, and greenhouse gas emissions. Results show that annual average temperature was -8.9°C, precipitation was 170 mm (48% below the 1994-2022 average), and no exceedances of GNWT standards for total suspended particulate or PM2.5 were recorded, with total GHG emissions estimated at 164.9 ktCO2e.
Air Quality Particulate Matter Dust Deposition
Air Quality Monitoring Program (AQMP) Annual Report 2021, Appendices F-I, Ekati Diamond Mine (Arctic Canadian Diamond Company, April 2022)
1 April 2022Report
The 2021 Air Quality Monitoring Program (AQMP) report for the Ekati Diamond Mine presents meteorological and air quality monitoring data collected from 2018 to 2021, assessing compliance with ambient air quality standards and the effectiveness of dust mitigation strategies. Key findings include no exceedances of total suspended particulate standards, greenhouse gas emissions of 150.8 ktCO2e in 2021, and recommendations to streamline monitoring station networks while maintaining adequate coverage of mining activity impacts.
Air Quality Monitoring Particulate Matter
Air Quality Monitoring Program (AQMP), Appendix F to the 2021 Environmental Agreement and Water Licence Annual Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, April 2022)
1 April 2022Report
The 2021 Air Quality Monitoring Program (AQMP) report for the Ekati Diamond Mine presents meteorological and air quality monitoring data collected from 2018 to 2021, assessing compliance with ambient air quality standards and the effectiveness of dust mitigation measures. Key findings include no exceedances of total suspended particulate standards, greenhouse gas emissions of 150.8 ktCO2e in 2021, and elevated metal and particulate concentrations in snow and lichen tissue near mining infrastructure that decrease with distance from the mine site.
Air Quality Particulate Matter Monitoring
Air Quality Monitoring Program (AQMP) Report 2017, Comment Letter, Ekati Diamond Mine (Independent Environmental Monitoring Agency, May 2018)
30 May 2018Letter
The Independent Environmental Monitoring Agency provides comments on Dominion Diamond Ekati ULC's 2017 Air Quality Monitoring Program Report, noting improvements but raising concerns about declining data capture rates for PM2.5 and TSP, dustfall impacts on vegetation and caribou, and the need for enhanced dust suppression and spring monitoring protocols.
Air Quality Particulate Matter Dust Deposition
Air Quality Monitoring Program (AQMP) Report, Ekati Diamond Mine (Dominion Diamond, March 2018)
31 March 2018Report
This is the 2017 Air Quality Monitoring Program report for the Ekati Diamond Mine, covering monitoring data from 2015 to 2017. The report presents results from seven monitoring components including meteorological data, air emissions and greenhouse gas calculations, ambient air quality monitoring, dustfall monitoring, acid and metal deposition, snow chemistry, and lichen tissue sampling, demonstrating that mine effects on air quality are limited to approximately 1 km for fugitive dust and 15 km for smaller particles.
Air Quality Monitoring Greenhouse Gas
Air Quality Monitoring Program, Ekati Diamond Mine (BHP Billiton, May 2012)
10 May 2012Report
This three-year Air Quality Monitoring Program report (2009-2011) for the EKATI Diamond Mine presents results from six monitoring components: meteorology, emissions calculations, ambient air quality monitoring (HVAS and CAM), dustfall, snow chemistry, and lichen tissue analysis. The report concludes that mining effects on air quality remain localized within approximately 1 km for heavier particles and 15 km for smaller particles, with values generally below relevant guidelines.
Air Quality Monitoring Greenhouse Gas
Air Quality Management and Monitoring Plan (AQMP), Ekati Diamond Mine (BHP Billiton, March 2009)
31 March 2009Report
BHP Billiton Diamonds Inc. presents the 2009 Air Quality Management and Monitoring Plan for the EKATI Diamond Mine, detailing updated strategies for monitoring and managing ambient air quality, dust emissions, and greenhouse gas inventory. The plan incorporates improvements developed through consultations with IEMA, GNWT-ENR, and Environment Canada, including relocation of the Continuous Air Monitoring Building, updated snow and lichen sampling methodologies, and redesigned monitoring station locations to provide better coverage of the mine's zone of influence.
Air Quality Monitoring Greenhouse Gas
Air Quality Monitoring Report, Ekati Diamond Mine (BHP Billiton, December 2002)
1 December 2002Report
This comprehensive air quality monitoring report for the Ekati Diamond Mine covers 1998-2001 data, analyzing total suspended particulates, snow chemistry, and emissions from mining operations to assess environmental impacts. The report concludes that air quality objectives appear to be met at mineral claim boundaries, with dust and metal deposition limited to approximately 5 km from mine activities, though gaseous emissions show broader atmospheric distribution.
Air Quality Particulate Matter Monitoring Greenhouse Gas Water Quality
Air Quality Vegetation Monitoring, Ekati Diamond Mine, 2001 Emissions & Road Dust (ABR, Inc., 2001)
10 January 2002Report
This 2001 air-quality vegetation monitoring report for the Ekati Diamond Mine presents results from emissions-related lichen and vegetation sampling and establishes baseline data for proposed Sable Road dust monitoring. The study found significantly higher concentrations of aluminum, titanium, and iron in project-area lichens compared to reference areas, but attributes these to dust from mine activities rather than power plant emissions, with no detected effects on plant community composition or concern for toxicity.
Air Quality Dust Deposition Monitoring Development Plans
Northwest Territories Air Quality Report, 1999/2000 (GNWT, June 2001)
6 June 2001Report
The 1999/2000 Northwest Territories Air Quality Report presents air quality monitoring data collected by RWED from monitoring stations in Yellowknife, Snare Rapids, and Fort Liard, tracking parameters including dust, arsenic, lead, SO2, ozone, and acid precipitation. The report documents a significant improvement in air quality following the closure of Giant Mine in October 1999, with substantial decreases in SO2 and arsenic levels.
Air Quality Particulate Matter Monitoring Regulatory
Air Quality Monitoring, Ekati Diamond Mine (BHP Billiton, May 1999)
1999Report
BHP Diamonds Inc. 1998 Air Quality Monitoring Annual Report (Yellowknife, May 3 1999). Documents NOx/SOx emissions and lichen-based bioindication of ambient air quality (sulphur correlations, Laaksovirta & Olkkonen 1977/1979; Manninen et al. 1991), with eutrophication risks of nitrogen deposition (Wetzel 1983), and tissue metals analytical results at monitoring stations AQ-1 and AQ-6 in the Project Area (August 1998 — Lithium, Molybdenum, Nickel, Selenium, Silver, Strontium, Thallium, Titanium, Uranium, Vanadium, Zinc, Mercury). Includes detection-limit data and station maps.
Air Quality Monitoring Particulate Matter
Air Quality Monitoring Report, Ekati Diamond Mine (BHP Billiton, April 1999)
30 April 1999Report
BHP's 1998 Air Quality Monitoring Report for the Ekati Diamond Mine documents emissions calculations, high-volume air sampling results showing elevated TSP levels in May and July, snow survey chemistry analysis identifying mine-related metal deposition in the Koala watershed, and lichen tissue biomonitoring detecting significantly elevated trace metals near mining operations compared to control areas.
Air Quality Monitoring Particulate Matter

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13 documents · Page 1 of 1

Air Quality Monitoring Program (AQMP), Appendix A, Ekati Diamond Mine (Arctic Canadian Diamond Company, May 2025)

Air Quality Monitoring Program (AQMP), Appendix D to the 2022 Environmental Agreement and Water Licence Annual Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, April 2023)

Air Quality Monitoring Program (AQMP) Annual Report 2021, Appendices F-I, Ekati Diamond Mine (Arctic Canadian Diamond Company, April 2022)

Air Quality Monitoring Program (AQMP), Appendix F to the 2021 Environmental Agreement and Water Licence Annual Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, April 2022)

Air Quality Monitoring Program (AQMP) Report 2017, Comment Letter, Ekati Diamond Mine (Independent Environmental Monitoring Agency, May 2018)

Air Quality Monitoring Program (AQMP) Report, Ekati Diamond Mine (Dominion Diamond, March 2018)

Air Quality Monitoring Program, Ekati Diamond Mine (BHP Billiton, May 2012)

Air Quality Management and Monitoring Plan (AQMP), Ekati Diamond Mine (BHP Billiton, March 2009)

Air Quality Monitoring Report, Ekati Diamond Mine (BHP Billiton, December 2002)

Air Quality Vegetation Monitoring, Ekati Diamond Mine, 2001 Emissions & Road Dust (ABR, Inc., 2001)

Northwest Territories Air Quality Report, 1999/2000 (GNWT, June 2001)

Air Quality Monitoring, Ekati Diamond Mine (BHP Billiton, May 1999)

Air Quality Monitoring Report, Ekati Diamond Mine (BHP Billiton, April 1999)