Emissions of Toxics to Air Data

 

Mercury emissions to air, Canada, 1990 to 2011
YearMercury
(annual national emissions in tonnes)
199035.0
199134.5
199233.9
199318.3
199412.9
199512.0
199613.0
199710.3
199810.0
19998.4
20007.9
20018.1
20026.2
20036.4
20046.7
20056.2
20065.3
20076.6
20086.3
20095.7
20104.7
20113.7

Note: Emissions from natural sources (e.g. volcanoes) and open sources (e.g. landfill waste) are not included in the indicator. Mercury emissions from products are included in the 2007–2011 estimates.

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Mercury emissions to air by source, Canada, 2011
SourceMercury
(tonnes)
Percent of national emissions
Electric Power Generation (Utilities)0.9827
Incineration0.9426
Other Sources0.6217
Iron and Steel Industries0.4312
Cement and Concrete Industry0.288
Non-ferrous Smelting and Refining Industry0.216
Petroleum Industry0.113
Iron Ore Mining Industry0.103

Note: Emissions from natural sources (e.g. volcanoes) and open sources (e.g. landfill waste) have not been included in the indicator. "Other Sources" include all the other industrial, residential and commercial combustion, transportation and other miscellaneous sources not mentioned in this chart.

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Mercury emissions to air by province and territory, Canada, 2011
Province or territoryMercury
(tonnes)
Percent of national emissions
Ontario0.9727
Saskatchewan0.7220
Quebec0.6518
Alberta0.4913
British Columbia0.4111
Nova Scotia0.134
New Brunswick0.134
Newfoundland and Labrador0.082
Manitoba0.072
Prince Edward Island0.02<1
Northwest Territories<0.01<1
Yukon<0.01<1
Nunavut<0.01<1

Note: Emissions from natural sources (e.g. volcanoes) and open sources (e.g. landfill waste) have not been included in the indicator.

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Hexavalent chromium emissions to air, Canada, 2003 to 2011
YearHexavalent Chromium
(annual national emissions in tonnes)
20032.8
20043.0
20053.3
20061.9
20071.6
20081.7
20091.2
20101.1
20110.8

Note: The indicator only includes the tonnes of hexavalent chromium (Cr(VI)), including that released in substances containing Cr(VI), reported in the National Pollutant Release Inventory (NPRI) based on the NPRI reporting criteria for emissions of Cr(VI) and its compounds. As a result, the Cr(VI) emissions presented here represent only a portion of the atmospheric emissions of this toxic pollutant in Canada.

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Hexavalent chromium emissions to air by source, Canada, 2011
SourceHexavalent Chromium
(tonnes)
Percent of national emissions
Electric Power Generation, Transmission and Distribution0.4049
Pulp, Paper and Paperboard Mills0.2024
Coating, Engraving, Heat Treating and Allied Activities0.045
Aerospace Product and Parts Manufacturing0.045
Paint, Coating and Adhesive Manufacturing0.034
Iron and Steel Mills and Ferro-alloy Manufacturing0.034
Foundries0.033
Other Sources0.033
Sawmills and Wood Preservation0.011
Forest Nurseries and Gathering of Forest Products0.011

Note: The indicator only includes the tonnes of Cr(VI), including that released in substances containing Cr(VI), reported in the National Pollutant Release Inventory (NPRI) based on the NPRI reporting criteria for emissions of Cr(VI) and its compounds. As a result, the Cr(VI) emissions presented here represent only a portion of the atmospheric emissions of this toxic pollutant in Canada. "Other Sources" represents a grouping of all other sectors with Cr(VI) and its compounds emissions that are not individually displayed on this chart.

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Hexavalent chromium emissions to air by province and territory*, Canada, 2011
Province or territoryHexavalent Chromium
(tonnes)
Percent of national emissions
Alberta0.4656
British Columbia0.1417
Ontario0.1316
Quebec0.079
New Brunswick0.012
Manitoba<0.01<1
Nova Scotia<0.01<1
Saskatchewan<0.01<1

Note: The indicator only includes the tonnes of Cr(VI), including that released in substances containing Cr(VI), reported in the National Pollutant Release Inventory (NPRI) based on the NPRI reporting criteria for emissions of Cr(VI) and its compounds. As a result, the Cr(VI) emissions presented here represent only a portion of the atmospheric emissions of this toxic pollutant in Canada.
* Facility emissions of Cr(VI) and its compounds were not reported for the remaining provinces and the territories.

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