Canada’s Air Pollutant Emissions Inventory Report 2020: chapter 2.6

2.6 Ammonia (NH3)

In 2018, approximately 484 kt of NH3 were released in Canada (Table 2–8). NH3 emissions originated primarily from agriculture, which accounted for 93% (453 kt) of total emissions. All other sources combined accounted for only 7% of emissions.

From 1990 to 2018, Canada’s NH3 emissions increased by 21% (83 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 2011, and has since remained stable. Emissions from crop production, however, have been steadily increasing since 2006.

The most significant changes in NH3 emissions from 1990 to 2018 include:

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 2018.

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 2018
Sector 1 - Animal Production 281 281 287 287 293 308 317 317 318 317 322 331 335 336 350 354 345 333 320 308 300 294 293 294 289 285 286 286 285
Sector 2 - Crop Production 82 78 84 87 93 96 103 109 107 106 110 105 105 110 111 104 104 121 125 124 125 130 147 160 156 163 162 153 167
Sector 3 - Other 39 38 39 39 42 51 51 51 53 51 51 48 54 43 42 41 38 37 35 33 33 33 32 32 32 31 32 31 32

Table 2–8: National summary of annual NH3

Ore and Mineral Industries (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 1 800 2 200 1 200 1 400 1 300 1 200 1 200 1 300 1 500
Aluminium Industry 29 34 13 -* - - - - -
Asphalt Paving Industry 0.60 1.3 1.2 - - - - - -
Cement and Concrete Industry 600 630 340 430 440 480 360 380 480
Foundries 11 12 8.0 - - - - - -
Iron and Steel Industry 180 230 85 78 89 59 56 55 58
Iron Ore Industry 160 160 22 - - - - - -
Mineral Products Industry 82 100 95 420 430 330 400 290 250
Mining and Rock Quarrying 510 540 82 93 67 52 97 83 120
Non-Ferrous Mining and Smelting Industry 210 460 520 350 310 290 330 470 580
Oil and Gas Industry (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 650 1 800 2 500 2 600 2 700 2 200 2 400 2 600 2 600
Downstream Oil and Gas Industry 360 250 110 180 78 68 55 58 92
Upstream Oil and Gas Industry 290 1 500 2 400 2 400 2 600 2 100 2 300 2 600 2 500
Electric Power Generation (Utilities) (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 710 1 400 990 780 760 380 350 240 210
Coal 62 110 530 580 610 170 170 170 130
Diesel 3.7 6.0 2.8 -* - - - - -
Natural Gas 270 700 180 110 95 130 100 7.0 10
Waste Materials 0.26 1.7 - - - 5.3 11 12 10
Other (Electric Power Generation) 380 620 280 82 62 70 62 45 56
Manufacturing (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 20 000 25 000 17 000 11 000 11 000 12 000 12 000 11 000 12 000
Abrasives Manufacturing -* - 0.12 - - - - - -
Bakeries - - - - - 0.34 - - -
Biofuel Production - - - - - - - - -
Chemicals Industry 9 800 15 000 11 000 8 500 8 500 9 000 9 300 8 500 9 300
Electronics 29 76 56 17 17 19 18 16 16
Food Preparation 170 320 300 300 270 240 220 250 240
Glass Manufacturing 86 110 120 - - - - - -
Grain Industry 6.2 6.7 1.5 7.5 7.6 5.0 5.7 5.5 4.9
Metal Fabrication 79 190 39 2.1 2.4 25 25 27 27
Plastics Manufacturing 26 28 3.7 - - - - - -
Pulp and Paper Industry 4 400 3 600 2 600 1 700 1 600 1 600 1 700 1 700 1 600
Textiles 12 26 16 - - - - - -
Vehicle Manufacture (Engines, Parts, Assembly, Painting) 64 180 47 0.77 - 2.3 2.2 6.5 6.5
Wood Products 4 800 4 800 2 600 750 800 780 780 710 690
Other (Manufacturing) 500 360 180 21 22 32 30 18 40
Transportation and Mobile Equipment (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 5 500 12 000 11 000 8 300 7 800 7 700 7 900 7 900 8 200
Air Transportation 5.0 4.8 4.6 4.6 4.4 4.5 4.6 4.7 4.9
Heavy-duty Diesel Vehicles 210 390 560 760 750 730 710 750 790
Heavy-duty Gasoline Vehicles 160 250 270 340 310 310 330 330 340
Heavy-duty LPG/NG Vehicles 55 170 21 1.2 0.88 1.1 1.3 2.0 2.0
Light-duty Diesel Trucks 2.4 4.6 4.6 8.1 10 13 15 18 20
Light-duty Diesel Vehicles 10 11 11 17 17 18 17 17 16
Light-duty Gasoline Trucks 1 100 3 700 3 700 3 000 2 900 2 900 3 100 3 200 3 400
Light-duty Gasoline Vehicles 3 300 6 300 5 600 3 500 3 200 3 000 3 000 3 000 3 000
Light-duty LPG/NG Trucks 77 110 82 1.3 0.96 0.85 0.93 1.1 1.1
Light-duty LPG/NG Vehicles 14 21 14 0.06 0.04 0.04 0.05 0.06 0.06
Marine Transportation 160 220 250 260 260 260 270 280 290
Motorcycles 4.4 7.0 12 34 35 37 39 40 42
Off-road Diesel Vehicles and Equipment 170 210 200 190 190 200 180 200 220
Off-road Gasoline/LPG/NG Vehicles and Equipment 170 130 91 84 88 89 88 92 96
Rail Transportation 51 48 48 55 56 53 49 56 58
Tire Wear and Brake Lining -* - - - - - - - -
Agriculture (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 360 000 430 000 460 000 450 000 450 000 450 000 450 000 440 000 450 000
Animal Production 280 000 320 000 350 000 290 000 290 000 290 000 290 000 290 000 290 000
Crop Production 82 000 110 000 100 000 160 000 160 000 160 000 160 000 150 000 170 000
Fuel Use 44 41 28 47 52 45 45 45 44
Commercial / Residential / Institutional (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 3 900 3 600 3 200 3 100 3 100 3 100 3 000 3 000 3 100
Cigarette Smoking1 110 110 88 76 77 69 69 70 71
Commercial and Institutional Fuel Combustion 310 340 320 210 220 210 200 200 190
Commercial Cooking -* - - - - - - - -
Construction Fuel Combustion 70 38 50 44 44 44 44 45 46
Home Firewood Burning 2 300 2 100 1 700 1 800 1 800 1 800 1 800 1 800 1 800
Human1 490 530 560 610 620 620 630 640 640
Marine Cargo Handling 0.00 - - - - - - - -
Residential Fuel Combustion 690 560 530 380 380 360 330 320 340
Service Stations - - - - - - - - -
Other (Miscellaneous) - - - - - - - - -
Incineration and Waste (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 5 400 5 400 4 400 4 300 4 400 4 200 4 500 4 000 3 900
Crematoriums -* - - - - - - - -
Waste Incineration 210 220 340 150 150 150 150 160 160
Waste Treatment and Disposal 5 200 5 200 4 100 4 200 4 200 4 100 4 300 3 900 3 700
Paints and Solvents (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total -* 0.05 0.05 - - - - - -
Dry Cleaning - - - - - - - - -
General Solvent Use - - - - - - - - -
Printing - 0.05 0.05 - - - - - -
Surface Coatings - - - - - - - - -
Dust (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total -* - - - - - - - -
Coal Transportation - - - - - - - - -
Construction Operations - - - - - - - - -
Mine Tailings - - - - - - - - -
Paved Roads - - - - - - - - -
Unpaved Roads - - - - - - - - -
Fires (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Sub-total 1 100 130 100 67 240 180 150 93 52
Prescribed Burning 1 100 110 88 51 230 170 140 81 40
Structural Fires 22 17 16 16 12 12 12 12 12
Totals (tonnes)
Sector 1990 2000 2005 2013 2014 2015 2016 2017 2018
Ore and Mineral Industries 1 800 2 200 1 200 1 400 1 300 1 200 1 200 1 300 1 500
Oil and Gas Industry 650 1 800 2 500 2 600 2 700 2 200 2 400 2 600 2 600
Electric Power Generation (Utilities) 710 1 400 990 780 760 380 350 240 210
Manufacturing 20 000 25 000 17 000 11 000 11 000 12 000 12 000 11 000 12 000
Transportation and Mobile Equipment 5 500 12 000 11 000 8 300 7 800 7 700 7 900 7 900 8 200
Agriculture 360 000 430 000 460 000 450 000 450 000 450 000 450 000 440 000 450 000
Commercial / Residential / Institutional 3 900 3 600 3 200 3 100 3 100 3 100 3 000 3 000 3 100
Incineration and Waste 5 400 5 400 4 400 4 300 4 400 4 200 4 500 4 000 3 900
Paints and Solvents -* 0.05 0.05  - - - - - -
Dust - - - - - - - - -
Fires 1 100 130 100 67 240 180 150 93 52
Grand Total 400 000 480 000 500 000 490 000 480 000 480 000 480 000 470 000 480 000

Notes:

Totals may not add up due to rounding.

1. Cigarette Smoking as well as Infant Diapered Waste (which is included within the Human sector) are being considered for removal from future inventories. If you have any questions, please contact us at ec.iepa-apei.ec@canada.ca or 1-877-877-8375.

* - = no emission

0.00 Indicates emissions truncated due to rounding

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