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Toxic Substances

Canadian Atmospheric Mercury Mesurement Network (101 KB jpg image) small version (53 KB jpg image)
Source: Alexandra Steffen, 2000. Pers. Comm. Research Chemist, Mercury Group, Air Quality Processes Research Division, Air Quality Research Branch, Meteorological Service of Canada.

Annual Mercury Global Emissions 1 x 1 degree (76 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

Annual Mercury Emissions in North America 1 x 1 degree (56 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

Mercury Global Emissions (Canadian GRAHM model) 5 x 5 degree (36 KB jpg image)
Source: Dastoor, Ashu. 1999. Pers. Comm. Research Scientist, Modelling and Integration Research Division, Air Quality Research Branch, Meteorological Service of Canada, September, 1999.

Annual Global Lead Emissions 1 x 1 degree (76 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

Annual Lead Emissions in North America 1 x 1 degree  (49 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

Lead Emissions for 1996 in Eastern North America (92 KB jpg image)
Source: Daggupaty, S. M. and J. Ma. 2000. Lead Deposition to the Great Lakes Simulated Using Sources from Canada and United States. Paper presented at the 11th Joint Conference on the Application of Air Pollution Meteorology with the A&WMA, American Meteorological Society in January 2000.

Global Emissions of Pesticides a-HCH 1990 (50 KB jpg image)
Source: Li, Y.F., M.T. Scholdz and B.J. van Heyst. 1999. Global gridded emission inventory of alpha-haxachlorocyclohexane. J. Geophys. Res. In press.

Global HCH Emissions in 1980 (67 KB jpg image) and in 1990 1 x 1 degree (65 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

Dioxins in North America (149 KB jpg image) small version (54 KB jpg image)
Source: Cohen, Mark and Larissa Mathewson. 1999. Tracking Sources of Environmental Pollution in the Great Lakes - Air Quality and International Air Quality Advisory Board Public Meeting. International Joint Comission Great Lakes Water Quality Forum (September 23-26, 1999, Milwaukee, WI).

Toxaphene use in the USA in 1970 (107 KB jpg image) small version (67 KB jpg image)
Toxaphene usage in the USA with NAPAP grid system (with 1/6o latitude by 1/4o longitude resolution) in 1970.
Source: Y. F. Li. 2000. Gridded toxaphene usage inventories of the United States with NAPAP grid system. In preparation.

Toxaphene use in the USA between 1947 and 1986 (117 KB jpg image) small version (59 KB jpg image)
Total toxaphene usage in the USA between 1947 and 1986 in NAPAP grid system (with 1/6o latitude by 1/4o longitude resolution).
Source: Y. F. Li. 2000. Gridded toxaphene usage inventories of the United States with NAPAP grid system. In preparation.

Toxaphene and DDT in Egbert, Ontario due to Long Range Transport (68 KB jpg image)
Source: IADN, 1998. Technical Summary of Progress under the Integrated Atmospheric Deposition Program 1990-1996. US/Canada. IADN Scientific Streering Committee, January.

Global SOx Annual Emissions 1 x 1 degree (78 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

SOx Emissions in North America 1 x1 degree(49 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

SO2 Concentrations in Ontario (56 KB jpg image)
Geographical Distribution of SO2 Annual Mean Concentration (ppb) at Ambient Sites Across Ontario (1997).
Source: Air Quality in Ontario - A Concise Report on the State of Air Quality in the Province of Ontario 1997. Ministry of the Environment, Canada.

Global NOx Emissions 1 x 1 degree (79 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

NOx Emissions in North America 1 x 1 degree (54 KB jpg image)
Source: Canadian Global Emissions Interpretation Centre

NOx Emissions in Canada 1 x 1 degree (654 KB jpg image) small version (70 KB jpg image)
Source: Source: Ratté, Dominique. 2000. Per. Comm. Spatial Information Analyst, Pollution Data Branch, Environment Canada, Mar, 8th.

NOx Emissions in the Windsor-Quebec Corridor 30 km by 30 km (597 KB jpg image) small version (97 KB jpg image)
Source:  Source: Ratté, Dominique. 2000. Per. Comm. Spatial Information Analyst, Pollution Data Branch, Environment Canada, Mar, 8th.

CO Concentrations in Ontario (50 KB jpg image)
Geographical distribution of 1 hour maximum CO concentrations (ppm) across Ontario (1997)
Source: Air Quality in Ontario - A Concise Report on the State of Air Quality in the Province of Ontario 1997. Ministry of the Environment, Canada.

 

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