Archived: Air Pollutant Emission Inventory report: chapter 2.5
2.5 Carbon Monoxide (CO)
In 2015, approximately 5.6 Mt of CO were released in Canada (Table 2-7). Transportation and mobile equipment accounted for 53% (3.0 Mt) of total emissions, including light-duty gasoline vehicles and trucks at 19% (1.1 Mt) and off-road gasoline/LPG/CNG vehicles and equipment at 22% (1.2 Mt) of total CO emissions. The next-largest contributors are commercial/residential/institutional sources, which in 2015 also accounted for 22% (1.2 Mt) of emissions, mostly due to contributions from home firewood burning. The upstream petroleum industry and aluminium industry were the largest-emitting industrial sectors, accounting for 9% (510 kt) and 7% (380 kt) of CO, respectively.
Between 1990 and 2015, CO emissions decreased by 54% (6.6 Mt) (Figure 2-5). Of the many sectors that contributed to the overall decrease in emissions, two sectors in particular--light-duty gasoline trucks and vehicles, and off-road gasoline/LPG/CNG vehicles and equipment (spark ignition engines)--had the largest impact on emission reductions. The decreasing emission trend in these sectors is due to increasingly stringent engine and vehicle regulations. Emissions from home firewood burning gradually decreased across the time series, due to improved combustion efficiency in modern fireplace inserts, stoves and fireplaces and to a decrease in the use of wood as heating fuel.
The most significant changes in CO emissions from 1990 to 2015 include:
- Transportation and mobile equipment emissions: decrease of 62% (4.9 Mt)
- Light-duty gasoline trucks and vehicles: decrease of 77% (3.6 Mt)
- Off-road gasoline/LPG/CNG vehicles and equipment: decrease of 33% (0.6 Mt)
- Commercial/residential/institutional emissions: decrease of 27% (470 kt)
- Home firewood burning: decrease of 28% (470 kt)
- Oil and Gas Industry: increase of 61% (200 kt)
- Upstream petroleum industry: increase of 79% (220 kt)
- Petroleum product transportation and distribution: decrease of 68% (21 kt)
Long description for figure 2-5
| Sector | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sector 1 - Home Firewood Burning | 1660.391 | 1636.418 | 1564.791 | 1637.871 | 1668.531 | 1593.116 | 1573.783 | 1502.707 | 1596.983 | 1521.836 | 1472.693 | 1364.116 | 1482.731 | 1278.907 | 1247.87 | 1180.001 | 1144.825 | 1146.785 | 1161.166 | 1121.095 | 1193.904 | 1204.24 | 1213.941 | 1206.342 | 1198.201 | 1190.336 |
| Sector 2 - Light-duty gasoline vehicles and trucks | 4705.93 | 4341.132 | 4471.966 | 4293.294 | 4193.849 | 3967.189 | 3851.272 | 3686.439 | 3397.34 | 3401.182 | 3374.103 | 3159.482 | 2909.286 | 2734.571 | 2488.235 | 2003.082 | 1800.042 | 1684.343 | 1607.917 | 1474.507 | 1397.094 | 1259.62 | 1182.314 | 1155.97 | 1090.726 | 1072.846 |
| Sector 3 - Off-road gasoline/LPG/CNG vehicles and equipment | 1827.452 | 2194.076 | 2250.334 | 2253.747 | 2220.206 | 2277.444 | 2302.088 | 2159.114 | 2090.298 | 1865.777 | 1769.657 | 1543.213 | 1632.016 | 1652.138 | 1771.574 | 1681.331 | 1719.318 | 1669.958 | 1604.26 | 1541.671 | 1503.592 | 1359.93 | 1240.56 | 1212.071 | 1265.656 | 1232.588 |
| Sector 4 - Other | 3970.259 | 3693.115 | 3484.107 | 3845.944 | 3682.111 | 3590.817 | 3444.304 | 3599.965 | 3982.755 | 4072.902 | 4007.414 | 3745.277 | 3661.94 | 3723.369 | 3309.056 | 3005.207 | 2721.617 | 2589.83 | 2545.667 | 2408.365 | 2336.289 | 2224.278 | 2212.5 | 2155.106 | 2154.261 | 2099.143 |
| Source | Sector | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|
| Grand Total | 12,000,000 | 11,000,000 | 7,900,000 | 6,400,000 | 6,000,000 | 5,800,000 | 5,700,000 | 5,700,000 | 5,600,000 | |
| Ore and Mineral Industries | Empty | 390,000 | 400,000 | 500,000 | 540,000 | 540,000 | 550,000 | 550,000 | 510,000 | 520,000 |
| Ore and Mineral Industries | Aluminium Industry | 240,000 | 250,000 | 310,000 | 390,000 | 400,000 | 400,000 | 410,000 | 380,000 | 380,000 |
| Ore and Mineral Industries | Asphalt Paving Industry | 4,200 | 4,200 | 4,500 | 5,500 | 4,600 | 3,800 | 3,700 | 4,000 | 4,000 |
| Ore and Mineral Industries | Cement and Concrete Industry | 16,000 | 23,000 | 27,000 | 15,000 | 16,000 | 18,000 | 15,000 | 12,000 | 10,000 |
| Ore and Mineral Industries | Foundries | 55,000 | 48,000 | 49,000 | 50,000 | 49,000 | 49,000 | 49,000 | 49,000 | 49,000 |
| Ore and Mineral Industries | Iron and Steel Industries | 43,000 | 48,000 | 64,000 | 20,000 | 21,000 | 28,000 | 23,000 | 24,000 | 21,000 |
| Ore and Mineral Industries | Iron Ore Industry | 18,000 | 9,600 | 23,000 | 24,000 | 22,000 | 20,000 | 20,000 | 20,000 | 20,000 |
| Ore and Mineral Industries | Mineral Products Industry | 4,000 | 3,500 | 3,000 | 660 | 630 | 640 | 720 | 640 | 620 |
| Ore and Mineral Industries | Mining and Rock Quarrying | 14,000 | 14,000 | 10,000 | 11,000 | 14,000 | 20,000 | 14,000 | 15,000 | 13,000 |
| Ore and Mineral Industries | Non-Ferrous Mining and Smelting Industry | 280 | 360 | 13,000 | 22,000 | 11,000 | 13,000 | 11,000 | 13,000 | 13,000 |
| Oil and Gas Industry | Empty | 330,000 | 440,000 | 500,000 | 530,000 | 540,000 | 530,000 | 550,000 | 540,000 | 540,000 |
| Oil and Gas Industry | Downstream Petroleum Industry | 21,000 | 23,000 | 19,000 | 24,000 | 19,000 | 16,000 | 42,000 | 18,000 | 24,000 |
| Oil and Gas Industry | Petroleum Product Transportation and Distribution | 31,000 | 14,000 | 19,000 | 12,000 | 11,000 | 9,300 | 10,000 | 11,000 | 10,000 |
| Oil and Gas Industry | Upstream Petroleum Industry | 280,000 | 410,000 | 460,000 | 490,000 | 510,000 | 500,000 | 500,000 | 510,000 | 510,000 |
| Electric Power Generation (Utilities) | Empty | 49,000 | 37,000 | 48,000 | 44,000 | 41,000 | 34,000 | 35,000 | 39,000 | 39,000 |
| Electric Power Generation (Utilities) | Coal | 41,000 | 18,000 | 25,000 | 17,000 | 13,000 | 9,500 | 13,000 | 15,000 | 16,000 |
| Electric Power Generation (Utilities) | Diesel | 360 | 1,200 | 740 | 1,200 | 1,200 | 1,100 | 1,100 | 1,300 | 1,500 |
| Electric Power Generation (Utilities) | Natural Gas | 3,100 | 10,000 | 14,000 | 20,000 | 19,000 | 17,000 | 15,000 | 14,000 | 14,000 |
| Electric Power Generation (Utilities) | Waste Materials | 190 | 820 | 210 | 420 | 410 | 550 | 610 | 780 | 690 |
| Electric Power Generation (Utilities) | Other Electric Power Generation | 4,400 | 7,200 | 7,800 | 6,200 | 7,900 | 5,400 | 4,600 | 7,800 | 7,200 |
| Manufacturing | Empty | 1,300,000 | 1,100,000 | 530,000 | 200,000 | 170,000 | 180,000 | 180,000 | 160,000 | 140,000 |
| Manufacturing | Abrasives Manufacture | 610 | 240 | 240 | - | - | - | - | - | - |
| Manufacturing | Bakeries | 5.9 | 5.8 | 1.2 | 0.14 | 0.2 | 0.17 | 0.35 | 0.34 | 0.3 |
| Manufacturing | Biofuel Production | - | - | - | 20 | - | - | - | - | - |
| Manufacturing | Chemicals Industry | 27,000 | 30,000 | 18,000 | 13,000 | 14,000 | 13,000 | 14,000 | 14,000 | 15,000 |
| Manufacturing | Electronics | 27 | 40 | 18 | 1.5 | - | - | - | - | - |
| Manufacturing | Food Preparation | 1,200 | 1,400 | 1,500 | 1,000 | 990 | 1,000 | 1,000 | 980 | 1,700 |
| Manufacturing | Glass Manufacture | 490 | 570 | 690 | 260 | 240 | 260 | 260 | 280 | 300 |
| Manufacturing | Grain Processing | 1,900 | 2,700 | 610 | 540 | 390 | 390 | 370 | 390 | 370 |
| Manufacturing | Metal Fabrication | 8,800 | 11,000 | 8,600 | 3,000 | 3,300 | 3,600 | 2,800 | 2,200 | 1,600 |
| Manufacturing | Plastics Manufacture | 260 | 400 | 270 | 150 | 29 | 31 | 18 | 30 | 34 |
| Manufacturing | Pulp and Paper Industry | 180,000 | 150,000 | 93,000 | 72,000 | 77,000 | 48,000 | 57,000 | 64,000 | 68,000 |
| Manufacturing | Textiles | 45 | 78 | 53 | 0.02 | 0.027 | 0.023 | 0.057 | 0.063 | 0.069 |
| Manufacturing | Vehicle Manufacture (Engines, Parts, Assembly, Painting) | 3,800 | 2,100 | 2,100 | 1,800 | 1,900 | 900 | 580 | 590 | 380 |
| Manufacturing | Wood Products | 1,100,000 | 800,000 | 390,000 | 110,000 | 73,000 | 110,000 | 100,000 | 73,000 | 47,000 |
| Manufacturing | Other Manufacturing Industries | 31,000 | 61,000 | 11,000 | 650 | 710 | 620 | 610 | 580 | 580 |
| Transportation and Mobile Equipment | Empty | 7,900,000 | 7,100,000 | 5,000,000 | 3,800,000 | 3,400,000 | 3,200,000 | 3,100,000 | 3,100,000 | 3,000,000 |
| Transportation and Mobile Equipment | Air Transportation | 60,000 | 47,000 | 43,000 | 46,000 | 41,000 | 51,000 | 49,000 | 46,000 | 46,000 |
| Transportation and Mobile Equipment | Heavy-duty diesel vehicles | 36,000 | 64,000 | 92,000 | 81,000 | 82,000 | 77,000 | 74,000 | 70,000 | 66,000 |
| Transportation and Mobile Equipment | Heavy-duty gasoline vehicles | 610,000 | 1,100,000 | 830,000 | 550,000 | 470,000 | 460,000 | 450,000 | 420,000 | 400,000 |
| Transportation and Mobile Equipment | Heavy-duty LPG/NG vehicles | 150,000 | 340,000 | 73,000 | 18,000 | 4,400 | 2,900 | 1,500 | 9,700 | 2,100 |
| Transportation and Mobile Equipment | Light-duty diesel trucks | 14,000 | 14,000 | 19,000 | 13,000 | 13,000 | 11,000 | 11,000 | 11,000 | 11,000 |
| Transportation and Mobile Equipment | Light-duty diesel vehicles | 31,000 | 18,000 | 9,400 | 8,300 | 9,000 | 8,500 | 8,700 | 8,500 | 8,600 |
| Transportation and Mobile Equipment | Light-duty gasoline trucks | 1,700,000 | 1,600,000 | 1,100,000 | 770,000 | 690,000 | 650,000 | 640,000 | 610,000 | 610,000 |
| Transportation and Mobile Equipment | Light-duty gasoline vehicles | 3,100,000 | 1,700,000 | 950,000 | 630,000 | 570,000 | 530,000 | 510,000 | 480,000 | 470,000 |
| Transportation and Mobile Equipment | Light-duty LPG/NG trucks | 160,000 | 62,000 | 23,000 | 3,600 | 1,200 | 780 | 410 | 290 | 300 |
| Transportation and Mobile Equipment | Light-duty LPG/NG vehicles | 16,000 | 6,700 | 2,500 | 310 | 43 | 27 | 11 | 8.8 | 8.9 |
| Transportation and Mobile Equipment | Marine Transportation | 13,000 | 17,000 | 19,000 | 19,000 | 20,000 | 20,000 | 21,000 | 22,000 | 22,000 |
| Transportation and Mobile Equipment | Motorcycles | 13,000 | 14,000 | 15,000 | 14,000 | 13,000 | 13,000 | 12,000 | 12,000 | 12,000 |
| Transportation and Mobile Equipment | Off-road diesel vehicles and equipment | 220,000 | 230,000 | 170,000 | 150,000 | 130,000 | 110,000 | 100,000 | 94,000 | 90,000 |
| Transportation and Mobile Equipment | Off-road gasoline/LPG/CNG vehicles and equipment | 1,800,000 | 1,800,000 | 1,700,000 | 1,500,000 | 1,400,000 | 1,200,000 | 1,200,000 | 1,300,000 | 1,200,000 |
| Transportation and Mobile Equipment | Rail Transportation | 16,000 | 15,000 | 15,000 | 16,000 | 18,000 | 18,000 | 17,000 | 18,000 | 18,000 |
| Transportation and Mobile Equipment | Tire Wear and Brake Lining | - | - | - | - | - | - | - | - | - |
| Agriculture | Empty | 630 | 690 | 510 | 700 | 870 | 910 | 910 | 900 | 900 |
| Agriculture | Animal Production | - | - | - | - | - | - | - | - | - |
| Agriculture | Crop Production | - | - | - | - | - | - | - | - | - |
| Agriculture | Fuel Use | 630 | 690 | 510 | 700 | 870 | 910 | 910 | 900 | 900 |
| Commercial / Residential / Institutional | Empty | 1,700,000 | 1,500,000 | 1,200,000 | 1,200,000 | 1,200,000 | 1,300,000 | 1,200,000 | 1,200,000 | 1,200,000 |
| Commercial / Residential / Institutional | Cigarette Smoking | 3,800 | 3,300 | 2,500 | 2,300 | 2,300 | 2,300 | 1,900 | 1,900 | 1,900 |
| Commercial / Residential / Institutional | Commercial and Institutional Fuel Combustion | 15,000 | 19,000 | 19,000 | 17,000 | 18,000 | 17,000 | 18,000 | 19,000 | 19,000 |
| Commercial / Residential / Institutional | Commercial Cooking | 5,700 | 6,400 | 7,100 | 7,200 | 6,900 | 7,000 | 6,900 | 6,700 | 6,700 |
| Commercial / Residential / Institutional | Construction Fuel Combustion | 670 | 360 | 510 | 550 | 440 | 300 | 290 | 300 | 300 |
| Commercial / Residential / Institutional | Home Firewood Burning | 1,700,000 | 1,500,000 | 1,200,000 | 1,200,000 | 1,200,000 | 1,200,000 | 1,200,000 | 1,200,000 | 1,200,000 |
| Commercial / Residential / Institutional | Human | - | - | - | - | - | - | - | - | - |
| Commercial / Residential / Institutional | Marine Cargo Handling | 0.16 | 0.05 | - | - | - | - | - | - | - |
| Commercial / Residential / Institutional | Residential Fuel Combustion | 13,000 | 13,000 | 13,000 | 12,000 | 13,000 | 12,000 | 13,000 | 13,000 | 13,000 |
| Commercial / Residential / Institutional | Service Stations | - | - | - | - | - | - | - | - | - |
| Commercial / Residential / Institutional | Other Miscellaneous Sources | - | - | - | - | - | - | - | - | - |
| Incineration and Waste | Empty | 45,000 | 27,000 | 25,000 | 19,000 | 19,000 | 18,000 | 18,000 | 18,000 | 18,000 |
| Incineration and Waste | Crematoriums | 7.4 | 11 | 13 | 15 | 15 | 16 | 17 | 18 | 18 |
| Incineration and Waste | Industrial and Commercial Incineration | 31 | 17 | 18 | 1,900 | 1,900 | 1,900 | 1,900 | 1,900 | 1,900 |
| Incineration and Waste | Municipal | 9,500 | 9,000 | 8,000 | 750 | 540 | 290 | 200 | 150 | 150 |
| Incineration and Waste | Waste | 35,000 | 16,000 | 15,000 | 14,000 | 14,000 | 14,000 | 14,000 | 14,000 | 14,000 |
| Incineration and Waste | Other Incineration and Utilities | 1,200 | 1,200 | 1,800 | 1,900 | 1,900 | 1,900 | 1,900 | 1,900 | 1,900 |
| Paints and Solvents | Empty | 23 | 73 | 21 | 1.9 | 0.48 | - | 0.47 | 0.46 | 0.37 |
| Paints and Solvents | Dry Cleaning | 0.95 | 0.81 | - | - | - | - | - | - | - |
| Paints and Solvents | General Solvent Use | - | - | - | - | - | - | - | - | - |
| Paints and Solvents | Printing | 22 | 72 | 21 | 1.9 | 0.48 | - | 0.47 | 0.46 | 0.37 |
| Paints and Solvents | Surface Coatings | 0.1 | 0.1 | - | - | - | - | - | - | - |
| Dust | Empty | - | - | - | - | - | - | - | - | - |
| Dust | Coal Transportation | - | - | - | - | - | - | - | - | - |
| Dust | Construction Operations | - | - | - | - | - | - | - | - | - |
| Dust | Mine Tailings | - | - | - | - | - | - | - | - | - |
| Dust | Paved Roads | - | - | - | - | - | - | - | - | - |
| Dust | Unpaved Roads | - | - | - | - | - | - | - | - | - |
| Fires | Empty | 440,000 | 78,000 | 52,000 | 53,000 | 73,000 | 92,000 | 35,000 | 140,000 | 130,000 |
| Fires | Prescribed Forest Burning | 440,000 | 76,000 | 51,000 | 52,000 | 71,000 | 90,000 | 33,000 | 140,000 | 130,000 |
| Fires | Structural Fires | 2,100 | 1,700 | 1,500 | 1,500 | 1,700 | 1,700 | 1,700 | 1,200 | 1,100 |
Notes:
Totals may not add up due to rounding.
- denotes no emissions.
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