Scientific Publication - Air quality over the Canadian oil sands: a first assessment using satellite observations (English, PDF)

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2025-02-03

In the oil sands air monitoring component, nitrogen dioxide (NO2) and sulphur dioxide (SO2) levels are monitored by ground-based instruments, satellites and other measurements. Monitoring of air pollutants from satellites is becoming an alternative to surface and aircraft measurements, and allows for better understanding of the global distribution, sources and trends of pollutants. Figures showing NO2 and SO2 datasets are given in “Satellite Figures-EngFr.pdf”. Using satellite data collected over the oil sands region, high-resolution air pollutant maps show distinct concentrations of NO2 (Figure 1a) and SO2 (Figure 1b) over an area (roughly 30 km x 50 km, or 19 miles x 31 miles) of intensive oil sands surface mining. The map shows that NO2 concentrations are significant and are comparable to measurements made over large, individual sources such as coal-burning power plants. NO2 concentrations in the oil sand region are smaller than in large metropolitan areas in Canada and significantly smaller than elsewhere in North America (Figures 1c and 1d). The SO2 concentrations (Figure 1e) are also significant and are comparable to those from individual industrial emissions sources,…

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