Canada’s Air Pollutant Emissions Inventory Report: chapter 2.6

2.6  Ammonia (NH3)

In 2017, approximately 476 kt of NH3 were released in Canada (Table 2–8). NH3 emissions originated primarily from agriculture, which accounted for 94% (446 kt) of total emissions. All other sources combined accounted for only 6% of emissions.

From 1990 to 2017, Canada’s NH3 emissions increased by 16% (77 kt) (Figure 2–6); NH3 emissions peaked in 2004 and have since fluctuated. This trend is driven by emissions from animal production and increasing use of nitrogen fertilizers in crop production. Animal production, which dominates the emissions throughout the time series, experienced a steady increase in emissions from 1990 to 2005, followed by a decrease from 2006 to 2017. Emissions from crop production, however, have been steadily increasing since 2006.

The most significant changes in NH3 emissions from 1990 to 2017 include:

  • agriculture: increase of 24% (86 kt), from which:
    • crop production: increase of 102% (81 kt)
    • animal production: increase of 2% (5 kt)
  • other sources, dominated by manufacturing, incineration and waste, and transportation and mobile equipment: decrease of 36% (12 kt)

Figure 2-6: Major contributors to national NH3 trends

Figure 2-6 (See long description below)
Long description for Figure 2-6

Figure 2-6 is a stacked area graph displaying the three major contributors to National NH3 trends. The three contributors are the following: Crop Production, Animal Production and Other. The following table displays the contributions (kt) for the years 1990 to 2017.

Figure 2-6: Major contributors to national NH3 trends (kt)
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 2016 2017
Sector 1 - Animal Production 280 280 290 290 290 310 320 320 320 320 320 330 330 340 350 350 350 330 320 310 300 290 290 290 290 290 290 290
Sector 2 - Crop Production 79 76 81 84 90 93 100 110 100 100 110 100 100 110 110 100 100 120 120 120 120 130 140 160 150 160 160 160
Sector 3 - Other 39 38 38 39 42 51 51 51 53 51 51 47 54 42 41 40 38 37 35 34 33 33 32 32 32 31 32 30

Table 2-8:  National summary of annual NH3 emissions

Ore and Mineral Industries (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 1 800 2 200 1 200 1 100 1 400 1 300 1 200 1 200 1 300
Aluminium Industry 29 34 13 no emissions (-) - - - - -
Asphalt Paving Industry 0.60 1.3 1.2 - - - - - -
Cement and Concrete Industry 600 630 340 330 430 440 480 360 380
Foundries 11 12 8.0 - - - - - -
Iron and Steel Industry 180 230 85 91 78 89 59 56 55
Iron Ore Industry 160 160 22 - - - - - -
Mineral Products Industry 82 110 110 230 420 440 340 410 300
Mining and Rock Quarrying 510 540 82 67 93 67 52 97 83
Non-Ferrous Mining and Smelting Industry 210 450 510 420 350 300 280 320 460
Oil and Gas Industry (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 650 1 800 2 500 2 200 2 600 2 700 2 200 2 400 2 600
Downstream Oil and Gas Industry 360 250 110 75 180 78 68 55 58
Upstream Oil and Gas Industry 290 1 500 2 400 2 100 2 400 2 600 2 100 2 300 2 600
Electric Power Generation (Utilities) (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 740 1 500 990 340 780 760 380 350 240
Coal 62 110 530 37 580 610 170 170 170
Diesel 3.7 6.0 2.8 no emissions (-) - - - - -
Natural Gas 270 700 180 200 110 95 130 100 7
Waste Materials 23 26 - - - - 5.3 11 12
Other (Electric Power Generation) 380 620 280 95 82 62 70 62 45
Manufacturing (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 20 000 25 000 17 000 12 000 11 000 11 000 12 000 12 000 11 000
Abrasives Manufacturing no emissions (-) - 0.12 - - - - - -
Bakeries - - - - - - 0.34 - -
Biofuel Production - - - - - - - - -
Chemicals Industry 9 800 15 000 11 000 9 100 8 500 8 500 9 000 9 300 8 500
Electronics 29 76 56 18 17 17 19 18 16
Food Preparation 170 320 300 270 300 270 240 220 250
Glass Manufacturing 86 110 120 - - - - - -
Grain Industry 6.2 6.77 1.5 15 7.5 7.6 5.0 5.7 5.5
Metal Fabrication 79 190 39 2.8 2.2 2.4 25 25 27
Plastics Manufacturing 26 28 3.7 - - - - - -
Pulp and Paper Industry 4 400 3 600 2 600 1 700 1 700 1 600 1 600 1 700 1 700
Textiles 12 26 16 - - - - - -
Vehicle Manufacture (Engines, Parts, Assembly, Painting) 64 180 47 0.11 0.77 - 2.3 2.2 6.5
Wood Products 4 600 4 600 2 400 730 750 800 780 780 710
Other (Manufacturing) 500 360 180 25 21 22 32 30 18

Transportation and Mobile Equipment (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 5 500 12 000 11 000 8 400 8 300 7 800 7 700 7 900 7 800
Air Transportation 29 35 37 37 38 37 38 39 40
Heavy-Duty Diesel Vehicles 210 390 560 740 760 750 730 710 710
Heavy-Duty Gasoline Vehicles 160 250 270 330 340 310 310 330 320
Heavy-Duty LPG/NG Vehicles 55 170 21 2.5 1.2 0.88 1.1 1.3 1.9
Light-Duty Diesel Trucks 2.4 4.6 4.6 6.9 8.1 10 13 15 17
Light-Duty Diesel Vehicles 10 11 11 15 17 17 18 17 16
Light-Duty Gasoline Trucks 1 100 3 700 3 700 3 000 3 000 2 900 2 900 3 100 3 100
Light-Duty Gasoline Vehicles 3 300 6 300 5 600 3 600 3 500 3 200 3 000 3 000 2 900
Light-Duty LPG/NG Trucks 77 110 82 2.5 1.3 0.96 0.85 0.93 1.1
Light-Duty LPG/NG Vehicles 14 21 14 0.14 0.06 0.04 0.04 0.05 0.06
Marine Transportation 160 220 250 260 260 260 270 270 280
Motorcycles 4.4 7.0 12 33 34 35 37 39 40
Off-road Diesel Vehicles and Equipment 170 210 200 190 190 190 200 180 190
Off-road Gasoline/LPG/CNG Vehicles and Equipment 170 130 91 82 84 88 89 88 90
Rail Transportation 51 48 48 57 55 56 53 49 49
Tire Wear and Brake Lining no emissions (-) - - - - - - - -
Agriculture (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 360 000 430 000 450 000 440 000 450 000 440 000 440 000 440 000 450 000
Animal Production 280 000 320 000 350 000 290 000 290 000 290 000 290 000 290 000 290 000
Crop Production 79 000 110 000 100 000 140 000 160 000 150 000 160 000 160 000 160 000
Fuel Use 44 41 28 47 47 52 45 45 43
Commercial / Residential / Institutional (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 3 900 3 600 3 200 3 100 3 100 3 100 3 100 3 000 3 000
Cigarette Smoking 110 110 88 83 76 77 69 70 71
Commercial and Institutional Fuel Combustion 310 340 320 200 210 220 210 200 200
Commercial Cooking no emissions (-) - - - - - - - -
Construction Fuel Combustion 70 38 50 49 44 44 44 44 45
Home Firewood Burning 2 300 2 100 1 700 1 800 1 800 1 800 1 800 1 800 1 800
Human 490 530 560 600 610 620 620 630 640
Marine Cargo Handling 0.00 - - - - - - - -
Residential Fuel Combustion 690 560 530 400 380 380 360 330 310
Service Stations - - - - - - - - -
Other Commercial / Residential / Institutional - - - - - - - - -
Incineration and Waste (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 5 400 5 500 4 500 4 300 4 400 4 400 4 300 4 500 4 000
Crematoriums 0.00 0.00 0.00 no emissions (-) - - - - -
Waste Incineration 220 280 410 200 200 200 200 200 200
Waste Treatment and Disposal 5 200 5 200 4 100 4 100 4 200 4 200 4 100 4 300 3 800
Paints and Solvents (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 14 14 0.88  no emissions (-) - - - - -
Dry Cleaning 0.05 0.05 - - - - - - -
General Solvent Use - - - - - - - - -
Printing 14 14 0.88 - - - - - -
Surface Coatings 0.08 0.08 - - - - - - -
Dust (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total no emissions (-) - - - - - - - -
Coal Transportation - - - - - - - - -
Construction Operations - - - - - - - - -
Mine Tailings - - - - - - - - -
Paved Roads - - - - - - - - -
Unpaved Roads - - - - - - - - -
Fires (tonnes)
Sector 1990 2000 2005 2012 2013 2014 2015 2016 2017
Sub-total 1 100 130 100 210 67 240 180 150 93
Prescribed Burning 1 100 110 88 190 51 230 170 140 81
Structural Fires 22 17 16 18 16 12 12 12 12
Totals (tonnes)
Source 1990 2000 2005 2012 2013 2014 2015 2016 2017
Ore and Mineral Industries 1 800 2 200 1 200 1 100 1 400 1 300 1 200 1 200 1 300
Oil and Gas Industry 650 1 800 2 500 2 200 2 600 2 700 2 200 2 400 2 600
Electric Power Generation (Utilities) 740 1 500 990 340 780 760 380 350 240
Manufacturing 20 000 25 000 17 000 12 000 11 000 11 000 12 000 12 000 11 000
Transportation and Mobile Equipment 5 500 12 000 11 000 8 400 8 300 7 800 7 700 7 900 7 800
Agriculture 360 000 430 000 450 000 440 000 450 000 440 000 440 000 440 000 450 000
Commercial / Residential / Institutional 3 900 3 600 3 200 3 100 3 100 3 100 3 100 3 000 3 000
Incineration and Waste 5 400 5 500 4 500 4 300 4 400 4 400 4 300 4 500 4 000
Paints and Solvents 14 14 0.88  no emissions (-) - - - - -
Dust - - - - - - - - -
Fires 1 100 130 100 210 67 240 180 150 93
Grand Total 400 000 480 000 490 000 470 000 480 000 470 000 470 000 480 000 480 000

Notes:

Totals may not add up due to rounding.

- Indicates no emissions

0.00 Indicates emissions truncated due to rounding

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