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Ministry of the Environment of Ontario Air Quality Maps (Samples)
Geographical distributions of 1-hour maximum CO concentrations (in ppm) across Ontario (1997) (50 KB jpg image)
Source: MOE, 1999.Generalized synoptic weather pattern in Southern Ontario conducive to elevated pollutant levels (47 KB jpg image)
Source: MOE, 1999.Geographical Distribution of Annual Mean NO2 concentrations (ppb) across Ontario (1997) (54 KB jpg image)
Source: MOE, 1999.Geographical Distribution of SO2 Annual Mean Concentrations (ppb) at ambient sites across Ontario (1997) (56 KB jpg image)
Source: MOE, 1999.Geographical Distribution of 24-hour PM10 Annual Geometric Means at Ambient Sites (1997) (44 KB jpg image)
Source: MOE, 1999.Geographical Distribution of 1-hour Ozone exceedances Across Ontario (1997) (60 KB jpg image)
Source: MOE, 1999.US source regions of trans-boundary ozone into Ontario (71 KB jpg image), small version (41 KB jpg image)
Source: MOE, 1999.Ministry of the Environment, 1999. Air Quality in Ontario - A Concise Report on the State of Air Quality in the Province of Ontario 1997. Canada.