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Air quality: annexes

Air pollutants cause adverse health and environmental effects. Problems such as smog and acid rain result from the release of pollutants into the atmosphere. Most of these pollutants come from human activities, such as the burning of fuels for transportation, electricity, heating, and industry. Pollutants from natural sources, such as wildfires, can be equally substantial contributors to poor air quality when they occur. The Air quality indicators present the concentrations of 5 key air pollutants for Canada: fine particulate matter (PM2.5), ground-level ozone (O3), nitrogen dioxide (NO2), sulphur dioxide (SO2) and volatile organic compounds (VOCs).

Annex A

Annex A. Fine particulate matter measurement technological transition

Several types of monitoring equipment are used to monitor ambient PM2.5 concentrations:

PM2.5 Pre-Federal Equivalency Method (FEM) and Non-Federal Equivalency Method Instruments

  • Non-FEM: Rupprecht & Patashnick tapered element oscillating microbalance (TEOM) monitor or TEOM® Series 1400/1400a with sample equilibrium system (SES) monitor.
  • Pre-FEM: Met One BAM-1020 Beta Attenuation Mass monitor (prior to 2008)
  • Pre-FEM: Thermo Scientific TEOM 1400a with the Series 8500C Filter Dynamics Measurement System (FDMS) monitor (prior to 2010) Pre-FEM: Thermo Scientific 5030 SHARP (Synchronized Hybrid Ambient Realtime Particulate) monitor (prior to 2010)

PM2.5 Designated Federal Equivalency Method (FEM) Instruments

  • FEM: Thermo Scientific TEOM 1400a with the Series 8500C Filter Dynamics Measurement System (FDMS) monitor
  • FEM: Met One BAM-1020 Beta Attenuation Mass monitor
  • FEM: Thermo Scientific 5030 or 5030i SHARP (Synchronized Hybrid Ambient Realtime Particulate) monitor
  • FEM: GRIMM Environmental Dust Monitor model EDM 180
  • FEM: Teledyne Advanced Pollution Instrumentation Model T640 PM mass monitor

The Thermo Scientific TEOM 1400a with 8500C FDMS (2010), Met One BAM-1020 (2008), Thermo Scientific SHARP (2010), GRIMM 180 (2011) and Teledyne T640 (2016) monitors have been approved by the United States Environmental Protection Agency as Class III Federal Equivalent Methods and have been deployed across the National Air Pollution Surveillance network replacing non-FEM tapered element oscillating microbalance instruments, which in some circumstances may under report the PM2.5 mass concentrations relative to the National Air Pollution Surveillance PM2.5 Reference Method. Since 2005, the tapered element oscillating microbalance monitors have gradually been replaced by the federal equivalent methods monitors. The federal equivalent methods monitors measure a portion (semi-volatile) of the PM2.5 mass not captured by the older instruments. Because of these measurement differences between the new and the old monitoring equipment, concentrations measured with the new monitors may not be directly comparable with the measurements from years in which older instruments were used. The following table lists the stations used for the national and regional indicators that are operating with new technologies, along with the type of equipment and the year started.

Table A.1. Stations included in the national and regional indicators that use new monitoring technologies for fine particulate matter
NAPS ID Province or territory Location Monitor, year started
10102 Newfoundland and Labrador St. John's TEOM, 2006; BAM35, 2009; T640, 2019
10301 Newfoundland and Labrador Corner Brook TEOM, 2006
10401 Newfoundland and Labrador Mount Pearl TEOM, 2006; BAM35, 2009; T640, 2020
10602 Newfoundland and Labrador Corner Brook BAM35, 2009; T640, 2020
30120 Nova Scotia Halifax TEOM-SES, 2006; BAM35, 2007; T640, 2019
30310 Nova Scotia Sydney TEOM, 2006; BAM35, 2010; T640, 2019
30901 Nova Scotia Pictou BAM, 2006; BAM35, 2007; T640, 2019
40103 New Brunswick Fredericton TEOM, 2006; BAM35, 2007
40104 New Brunswick Fredericton BAM35, 2017 T640, 2019
40203 New Brunswick Saint John BAM, 2006; BAM35, 2006; T640, 2018
40207 New Brunswick Saint John BAM, 2006; BAM35, 2006; T640, 2019
40302 New Brunswick Moncton TEOM, 2006; BAM35, 2007; T640, 2019
40901 New Brunswick Saint Andrews TEOM, 2006; BAM35, 2007; T640, 2019
41302 New Brunswick Bathurst TEOM, 2006; BAM35, 2007; T640, 2019
50103 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2007; SHARP5030, 2016
50105 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2007
50109 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2008; SHARP5030, 2016
50110 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2008
50113 Quebec Laval TEOM-SES, 2006; BAM35, 2008; T640, 2018
50119 Quebec Longueuil TEOM-SES, 2006; BAM35, 2008; T640; 2018
50121 Quebec Brossard TEOM-SES, 2006; BAM35, 2008
50122 Quebec Brossard BAM35, 2016; T640, 2018
50126 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2008; SHARP5030, 2016
50128 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2008; SHARP5030, 2016
50129 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2008; SHARP5030, 2014
50131 Quebec Montreal TEOM-SES, 2006; TEOM-FDMS, 2007; GRIM, 2016
50135 Quebec Montreal TEOM-SES, 2013; SHARP5030, 2016
50136 Quebec Montreal SHARP5030, 2016
50204 Quebec Gatineau TEOM-SES, 2006; BAM35, 2009; T640, 2019
50308 Quebec Quebec TEOM-SES, 2006; BAM35, 2009; T640, 2018
50310 Quebec Quebec TEOM-SES, 2006; BAM35, 2009; T640, 2018
50311 Quebec Quebec BAM35, 2006; T640, 2018
50404 Quebec Sherbrooke TEOM-SES, 2006; BAM35, 2008; T640, 2018
50504 Quebec Saguenay TEOM-SES, 2006; BAM35, 2009; T640, 2018
50604 Quebec Rouyn-Noranda BAM35, 2006; T640, 2019
50801 Quebec Trois-Rivières TEOM-SES, 2006; BAM35, 2008
50802 Quebec Trois-Rivières BAM35, 2011
50803 Quebec Trois-Rivières BAM35, 2014; T640, 2018
51501 Quebec St. Zephirin-de-Courval BAM35, 2006; T640, 2019
52001 Quebec Charette BAM35, 2006; T640, 2019
52201 Quebec Saint-Simon BAM35, 2006; T640, 2020
52301 Quebec Saint-Faustin-Lac-Carré BAM35, 2006; T640, 2019
52401 Quebec La Pêche BAM35, 2006; T640, 2019
52801 Quebec Auclair BAM35, 2006; T640, 2018
53201 Quebec La Doré BAM35, 2006; T640, 2020
53301 Quebec Deschambault BAM35, 2006; T640, 2018
53601 Quebec Notre-Dame-du-Rosaire BAM35, 2006; T640, 2020
53701 Quebec St-Hilaire-de-Dorset BAM35, 2006; T640, 2018
53801 Quebec Tingwick BAM35, 2006; T640, 2019
53901 Quebec Lac Edouard BAM35, 2006; T640, 2020
54401 Quebec Saint-Anicet BAM35, 2006; T640, 2019
54901 Quebec La Patrie BAM35, 2006; T640, 2019
55001 Quebec Ferme Neuve BAM35, 2006; T640, 2020
55101 Quebec Senneterre BAM35, 2006; T640, 2019
55301 Quebec Saint-Jean-sur-Richelieu BAM35, 2006; T640, 2019
60104 Ontario Ottawa TEOM-SES, 2006; SHARP5030, 2013
60204 Ontario Windsor TEOM-SES, 2006; SHARP5030, 2013
60211 Ontario Windsor TEOM-SES, 2006; SHARP5030, 2013
60303 Ontario Kingston TEOM-SES, 2007; SHARP5030, 2013
60304 Ontario Kingston SHARP5030, 2014
60410 Ontario Toronto TEOM-SES, 2006; SHARP5030, 2013
60421 Ontario Toronto TEOM-SES, 2006; SHARP5030, 2013
60428 Ontario Brampton TEOM-SES, 2006; SHARP5030, 2013
60429 Ontario Toronto TEOM-SES, 2006
60430 Ontario Toronto TEOM-SES, 2006; SHARP5030, 2013
60432 Ontario Mississauga TEOM-SES, 2006
60433 Ontario Toronto TEOM-SES, 2006; SHARP5030, 2013
60434 Ontario Mississauga TEOM-SES, 2008; SHARP5030, 2013
60435 Ontario Toronto TEOM-SES, 2010; SHARP5030, 2013
60440 Ontario Toronto SHARP5030, 2017
60450 Ontario Brampton SHARP5030, 2017
60512 Ontario Hamilton TEOM-SES, 2006; SHARP5030, 2013
60513 Ontario Hamilton TEOM-SES, 2006; SHARP5030, 2013
60521 Ontario Hamilton SHARP5030, 2019
60609 Ontario Sudbury TEOM-SES, 2006
60610 Ontario Sudbury SHARP5030, 2013
60709 Ontario Sault Ste. Marie TEOM-SES, 2006; SHARP5030, 2013
60809 Ontario Thunder Bay TEOM-SES, 2006; SHARP5030, 2013
60903 Ontario London TEOM-SES, 2006
60904 Ontario London SHARP5030, 2013
61004 Ontario Sarnia TEOM-SES, 2006; SHARP5030, 2013
61009 Ontario Sarnia SHARP5030, 2016
61104 Ontario Peterborough TEOM-SES, 2006; SHARP5030, 2013
61201 Ontario Cornwall TEOM-SES, 2006; SHARP5030, 2013
61302 Ontario St. Catharines TEOM-SES, 2006; SHARP5030, 2013
61402 Ontario Brantford TEOM-SES, 2006; SHARP5030, 2013
61502 Ontario Kitchener TEOM-SES, 2006; SHARP5030, 2013
61603 Ontario Oakville TEOM-SES, 2006; SHARP5030, 2013
61702 Ontario Oshawa TEOM-SES, 2006; SHARP5030, 2013
61703 Ontario Oshawa SHARP5030, 2018
61802 Ontario Guelph TEOM-SES, 2006; SHARP5030, 2013
62001 Ontario North Bay TEOM-SES, 2006; SHARP5030, 2013
62501 Ontario Tiverton TEOM-SES, 2006; SHARP5030, 2013
62601 Ontario Simcoe TEOM-SES, 2006; SHARP5030, 2013
63001 Ontario Burlington TEOM-SES, 2006; SHARP5030, 2013
63301 Ontario Dorset TEOM-SES, 2006; SHARP5030, 2013
63701 Ontario Grand Bend TEOM-SES, 2006; SHARP5030, 2013
65001 Ontario Barrie TEOM-SES, 2006; SHARP5030, 2013
65101 Ontario Newmarket TEOM-SES, 2006; SHARP5030, 2013
65201 Ontario Parry Sound TEOM-SES, 2006; SHARP5030, 2013
65301 Ontario Port Stanley TEOM-SES, 2006; SHARP5030, 2013
65401 Ontario Belleville TEOM-SES, 2006; SHARP5030, 2013
65801 Ontario Chatham TEOM-SES, 2006; SHARP5030, 2013
66201 Ontario Petawawa TEOM-SES, 2007; SHARP5030, 2013
70118 Manitoba Winnipeg TEOM, 2006; SHARP5030, 2011
70119 Manitoba Winnipeg TEOM, 2006; SHARP5030, 2011; TEOM, 2012; SHARP5030, 2013
70203 Manitoba Brandon TEOM, 2006; SHARP5030, 2011
80110 Saskatchewan Regina TEOM, 2006; BAM35, 2009
80111 Saskatchewan Regina BAM35, 2011; T640, 2019
80211 Saskatchewan Saskatoon TEOM, 2006; BAM35, 2013; T640, 2018
90120 Alberta Edmonton TEOM-SES, 2006; TEOM, 2009; TEOM-FDMS, 2010; BAM35, 2016 SHARP5030,2016
90121 Alberta Edmonton TEOM-SES, 2006; TEOM, 2009; TEOM-FDMS, 2010; SHARP5030, 2015
90130 Alberta Edmonton TEOM-SES, 2006; TEOM, 2009; TEOM-FDMS, 2010
90132 Alberta Edmonton BAM35, 2008; TEOM-FDMS, 2009; BAM35, 2010; TEOM-FDMS, 2014 BAM35,2015
90227 Alberta Calgary TEOM-SES, 2006
90228 Alberta Calgary TEOM, 2008; TEOM-FDMS, 2010; BAM35, 2012
90230 Alberta Calgary BAM35, 2015 SHARP5030, 2015
90302 Alberta Red Deer TEOM, 2006; TEOM-FDMS, 2010; SHARP5030, 2013
90402 Alberta Medicine Hat TEOM, 2006; TEOM-FDMS, 2010; SHARP5030, 2013
90502 Alberta Lethbridge TEOM-SES, 2006; TEOM, 2009; TEOM-SES, 2010; TEOM-FDMS, 2012;SHARP5030, 2016
90601 Alberta Fort Saskatchewan TEOM, 2006; TEOM-SES, 2010; SHARP5030, 2013; T640, 2020
90701 Alberta Fort McMurray TEOM, 2006; SHARP5030, 2012; T640, 2020
90702 Alberta Fort McMurray TEOM, 2006; TEOM-SES, 2012; SHARP5030, 2013; T640, 2019
90801 Alberta Fort Mackay TEOM, 2006; TEOM-SES, 2010; SHARP5030, 2011; T640, 2019
90806 Alberta Fort Mackay TEOM, 2006; TEOM-SES, 2010; SHARP5030, 2012; T640, 2019
91101 Alberta Elk Island TEOM, 2007; TEOM-SES, 2010; SHARP5030, 2013; T640, 2020
91301 Alberta Tomahawk TEOM, 2006; TEOM-SES, 2010; SHARP5030, 2015
91501 Alberta Beaverlodge TEOM, 2006; TEOM-FDMS, 2009; SHARP5030, 2014
91801 Alberta Fort Chipewyan TEOM, 2006; TEOM-SES, 2010; SHARP5030, 2013; T640, 2020
91901 Alberta Caroline TEOM, 2006; BAM35, 2010; SHARP5030, 2015
92001 Alberta Grande Prairie TEOM, 2006; TEOM-FDMS, 2010; SHARP5030, 2012
92201 Alberta Lamont BAM35, 2006; SHARP5030, 2014
92801 Alberta Drayton Valley TEOM, 2006; SHARP5030, 2015
92901 Alberta Edson TEOM, 2006; SHARP, 2020
93001 Alberta Evergreen Park TEOM, 2006; SHARP, 2015
93101 Alberta Genesee TEOM, 2006; SHARP5030, 2017
93901 Alberta Thorsby TEOM, 2006; SHARP5030, 2019
94001 Alberta Debolt TEOM, 2006; TEOM-SES, 2010; SHARP5030, 2015
94601 Alberta Anzac TEOM-SES, 2006; SHARP5030, 2011; T640, 2020
100110 British Columbia Burnaby TEOM-SES, 2006; SHARP5030, 2013
100111 British Columbia Port Moody TEOM-SES, 2006; SHARP5030, 2013
100119 British Columbia Burnaby TEOM-SES, 2006; SHARP5030, 2013
100134 British Columbia Richmond TEOM-SES, 2006; SHARP5030, 2013
100138 British Columbia Vancouver TEOM-SES, 2006; SHARP5030, 2013
100202 British Columbia Prince George TEOM, 2006; SHARP5030, 2014
100304 British Columbia Victoria TEOM, 2006; BAM35, 2010
100401 British Columbia Kamloops BAM35, 2010; SHARP5030, 2017
100402 British Columbia Kamloops TEOM, 2006
100701 British Columbia Kelowna TEOM, 2006; SHARP5030, 2015
100703 British Columbia Kelowna SHARP5030, 2019
101004 British Columbia Abbotsford TEOM-SES, 2006
101005 British Columbia Abbotsford SHARP5030, 2012
101101 British Columbia Chilliwack TEOM-SES, 2006; SHARP5030, 2013
101202 British Columbia Pitt Meadows TEOM-SES, 2006; SHARP5030, 2013
101301 British Columbia Langley TEOM-SES, 2006; SHARP5030, 2013
101401 British Columbia Hope TEOM-SES, 2006; SHARP5030, 2013
101701 British Columbia Quesnel TEOM, 2006; SHARP5030, 2014
101705 British Columbia Quesnel SHARP5030, 2020
102102 British Columbia Nanaimo TEOM, 2006; BAM35, 2014
102401 British Columbia Smithers TEOM-SES, 2006; SHARP5030, 2013
102402 British Columbia Smithers SHARP5030, 2019
102701 British Columbia Williams Lake TEOM, 2006; SHARP5030, 2014
102801 British Columbia Campbell River TEOM, 2006; BAM35, 2014
103202 British Columbia Golden TEOM, 2006; SHARP5030, 2015
103901 British Columbia Kitimat TEOM, 2006; BAM35, 2014
104003 British Columbia Vernon TEOM, 2006; SHARP5030, 2015
105001 British Columbia Whistler TEOM, 2007; BAM35, 2015
105101 British Columbia Houston TEOM, 2006; SHARP5030, 2014
105201 British Columbia Burns Lake TEOM, 2006; SHARP5030, 2014
119003 Yukon Whitehorse TEOM, 2007
119004 Yukon Whitehorse SHARP5030, 2012; BAM35, 2015 T640, 2019
129003 Northwest territories Yellowknife BAM35, 2006; T640, 2019
129202 Northwest territories Inuvik BAM35, 2006
129203 Northwest territories Inuvik BAM35, 2011
Annex B

Annex B. Volatile organic compounds targeted for quantification

Table B.1. Volatile organic compounds targeted for quantification
Compound CAS registry number
1,2,3-Trimethylbenzene 526-73-8
1,2,4-Trimethylbenzene 95-63-6
1,3,5-Trimethylbenzene 108-67-8
1,3-Butadiene 106-99-0
1,3-Diethylbenzene 141-93-5
1,4-Diethylbenzene 105-05-5
1-Butene/Isobutene 115-11-7
1-Heptene 592-76-7
1-Hexene/2-Methyl-1-Pentene 592-41-6/763-29-1
1-Pentene 109-67-1
2,2,4-Trimethylpentane 540-84-1
2,2-Dimethylbutane 75-83-2
2,3,4-Trimethylpentane 565-75-3
2,3-Dimethylbutane 79-29-8
2,3-Dimethylpentane 565-59-3
2,4-Dimethylhexane 589-43-5
2,4-Dimethylpentane 108-08-7
2,5-Dimethylhexane 592-13-2
2-Ethyltoluene 611-14-3
2-Methyl-2-butene 513-35-9
2-Methylheptane 592-27-8
2-Methylhexane 591-76-4
2-Methylpentane 107-83-5
3-Ethyltoluene 620-14-4
3-Methyl-1-Butene 563-45-1
3-Methylheptane 589-81-1
3-Methylhexane 589-34-4
3-Methylpentane 96-14-0
4-Ethyltoluene 622-96-8
4-Methylheptane 589-53-7
Acetylene 74-86-2
a-Pinene 80-56-8
Benzene 71-43-2
b-Pinene 127-91-3
Butane 106-97-8
Camphene 79-92-5
cis-1,2-Dimethylcyclohexane;; 2207-01-4
cis-2-Butene 590-18-1
cis-2-Hexene 7688-21-3
cis-2-Pentene 627-20-3
cis-3-Methyl-2-pentene 922-61-2
Cyclohexane 110-82-7
Cyclopentane 287-92-3
Decane 124-18-5
d-Limonene 5989-27-5
Dodecane 112-40-3
Ethane 74-84-0
Ethylbenzene 100-41-4
Ethylene 74-85-1
Heptane 142-82-5
Hexane 110-54-3
Indane 496-11-7
Isobutane 75-28-5
Isopentane 78-78-4
Isoprene 78-79-5
iso-Propylbenzene 98-82-8
m and p-Xylene 108-38-3
Methylcyclohexane 108-87-2
Methylcyclopentane 96-37-7
Naphthalene 91-20-3
Nonane 111-84-2
n-Propylbenzene 103-65-1
Octane 111-65-9
o-Xylene 95-47-6
p-Cymene 99-87-6
Pentane 109-66-0
Propane 74-98-6
Propylene 115-07-1
Styrene 100-42-5
Toluene 108-88-3
trans-2-Butene 624-64-6
trans-2-Hexene 4050-45-7
trans-2-Octene 13389-42-9
trans-2-Pentene 646-04-8
trans-3-Methyl-2-pentene 616-12-6
trans-4-Methyl-2-pentene 674-76-0
Undecane 1120-21-4
Annex C

Annex C. Mann-Kendall and Sen's pairwise statistical parameters used for the analysis of trends

Table C.1. Legend for tables in Annex C
Field Description
First year Starting year of each time series.
Last year Ending year of each time series.
n Number of annual values in the calculation, excluding missing values.
Z-Test The absolute value of Z is compared to the standard normal cumulative distribution to define if there is a trend at the selected level α of significance. A positive (negative) value indicates an upward (downward) trend.
Significant The smallest significance level α at which the test shows that the null hypothesis of no trend can be rejected. For the 3 tested significance levels, the following symbols are used:
[A] if trend at α = 0.001 level of significance
[B] if trend at α = 0.01 level of significance
[C] if trend at α = 0.05 level of significance
Q Sen's estimator for the true slope of linear trend, that is, change per unit time period (in this case a year).
Qmin95 The lower limit of the 95% confidence interval of Q (α = 0.05).
Qmax95 The upper limit of the 95% confidence interval of Q (α = 0.05).
B Estimate of the constant B for the linear trend.
Bmin95 Estimate of the constant Bmin95 for 95% confidence level of a linear trend.
Bmax95 Estimate of the constant Bmax95 for 95% confidence level of a linear trend.
Median change Percent rate of change per year as described by the Sen’s estimator Q divided by the constant B for the linear trend. Slopes expressed in median annual percentage change are relative to the value in the first year of each time series
Table C.2. Mann-Kendall and Sen's tests results for the national and regional average fine particulate matter indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia
First year  2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020
n  15 15 15 15 15 15
Z-test  1.39 0.49 -2.47 0 1.39 2.87
Significant  No No Yes[C] No No Yes[B]
Q 0.07 0.03 -0.1132 0.0006 0.1244 0.2162
Qmin95  -0.0253 -0.1094 -0.1639 -0.1696 -0.0694 0.1051
Qmax95  0.1376 0.1161 -0.0224 0.1007 0.2868 0.3917
B  5.9588 5.1604 7.8933 6.4723 5.4995 4.4002
Bmin95  6.4998 6.4126 8.4192 8.1742 7.1413 4.9777
Bmax95  5.7142 4.7369 7.2433 5.5228 4.3189 3.6984
Median change  1.17% 0.58% -1.43% 0.01% 2.26% 4.91%
Table C 3. Mann-Kendall and Sen's tests results for the national and regional average peak (98th percentile) 24-hour fine particulate matter indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia Northern territories
First year  2006 2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020 2020
N  15 15 15 15 15 15 15
Z-test  0.69 -2.28 -2.97 -2.28 2.18 2.08 1.39
Significant  No Yes[C] Yes[B] Yes[C] Yes[C] Yes[C] No
Q  0.1355 -0.3254 -0.422 -0.4225 0.9213 0.8425 0.4017
Qmin95  -0.1343 -0.4957 -0.6833 -0.8471 0.1194 0.0262 -0.2473
Qmax95  0.8105 -0.0725 -0.2341 -0.1057 2.0311 2.2347 1.1751
B  17.863 15.8692 22.75 22.6429 14.9108 13.4147 13.2817
Bmin95  19.8978 17.2518 24.1069 25.5184 19.5784 15.8722 17.4418
Bmax95  14.4285 14.8225 21.5352 19.7505 9.6312 3.3985 6.9159
Median change  0.76% -2.05% -1.86% -1.87% 6.18% 6.28% 3.02%
Table C.4. Mann-Kendall and Sen's tests results for the national and regional average ground level ozone indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia
First year  2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020
n  15 15 15 15 15 15
Z-test  0.99 1.68 2.57 -1.29 0.79 0.1
Significant  No Yes[C] Yes[C] No No No
Q  0.0391 0.072 0.2009 -0.1111 0.0525 0.0294
Qmin95  -0.0366 -0.043 0.0487 -0.2358 -0.054 -0.1278
Qmax95  0.1125 0.1768 0.3045 0.0221 0.2235 0.1456
B  32.8974 32.7992 31.2778 37.6612 32.942 27.4591
Bmin95  33.3835 33.719 32.6621 38.9154 33.7301 28.4963
Bmax95  32.3837 31.9607 30.7595 36.4815 32.0655 26.6054
Median change  0.12% 0.22% 0.64% -0.30% 0.16% 0.11%
Table C.5. Mann-Kendall and Sen's tests results for the national and regional average peak (4th highest) 8-hour ground level ozone indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia
First year  2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020
n  15 15 15 15 15 15
Z-test  -2.77 -2.47 -2.08 -2.87 -0.3 -1.29
Significant  Yes[B] Yes[C] Yes[C] Yes[B] No No
Q  -0.4781 -0.4687 -0.4441 -0.8777 -0.1268 -0.294
Qmin95  -0.8036 -0.7752 -0.9737 -1.4148 -0.436 -0.5391
Qmax95  -0.1573 -0.147 -0.0674 -0.4099 0.2884 0.2031
B  61.3643 54.8727 61.2385 73.8895 58.0209 51.2889
Bmin95  64.0265 56.2637 64.6181 77.0146 59.258 52.8839
Bmax95  59 52.3818 58.0114 69.6791 56.3379 48.9587
Median change  -0.78% -0.85% -0.73% -1.19% -0.22% -0.57%
Table C.6. Mann-Kendall and Sen's tests results for the national and regional average nitrogen dioxide indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia
First year  2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020
n  15 15 15 15 15 15
Z-test  -4.85 -2.67 -4.45 -4.65 -3.86 -3.66
Significant  Yes[A] Yes[B] Yes[A] Yes[A] Yes[A] Yes[A]
Q  -0.2711 -0.0929 -0.3895 -0.3963 -0.1615 -0.2359
Qmin95  -0.3292 -0.1742 -0.4723 -0.4757 -0.2207 -0.3245
Qmax95  -0.2253 -0.0312 -0.2996 -0.2945 -0.0864 -0.1302
B  10.2732 4.1643 12.1495 12.077 8.37 11.9079
Bmin95  10.6856 4.8653 12.7289 12.7124 8.6832 12.2733
Bmax95  9.9068 3.6184 11.5204 11.2095 7.8443 10.8351
Median change  -2.64% -2.23% -3.21% -3.28% -1.93% -1.98%
Table C.7. Mann-Kendall and Sen's tests results for the national and regional average peak (98th percentile) 1-hour nitrogen dioxide indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia
First year  2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020
n  15 15 15 15 15 15
Z-test  -3.86 -3.27 -3.17 -3.46 -3.27 -2.18
Significant  Yes[A] Yes[B] Yes[B] Yes[A] Yes[B] Yes[C]
Q  -0.6362 -0.6332 -0.6303 -0.9442 -0.466 -0.4016
Qmin95  -0.8039 -0.8907 -1.0825 -1.2553 -0.7168 -0.7162
Qmax95  -0.4601 -0.3326 -0.3587 -0.5324 -0.2932 -0.0262
B  43.5 34.32 47.8995 49.2542 41.7088 39.2816
Bmin95  45.0206 36.1227 52.5599 50.8354 43.1651 41.266
Bmax95  42.4196 32.2158 45.8964 47.1955 41.0625 36.3058
Median change  -1.46% -1.85% -1.32% -1.92% -1.12% -1.02%
Table C.8. Mann-Kendall and Sen's tests results for the national and regional average sulphur dioxide indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia Northern territories
First year  2006 2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020 2020
n  15 15 15 15 15 15 15
Z-test  -4.95 -2.87 -4.35 -3.76 -3.66 -4.45 -2.57
Significant  Yes[A] Yes[B] Yes[A] Yes[A] Yes[A] Yes[A] Yes[C]
Q  -0.0835 -0.0694 -0.1083 -0.1746 -0.0368 -0.1033 -0.0333
Qmin95  -0.0993 -0.1196 -0.1539 -0.2162 -0.0668 -0.1156 -0.05
Qmax95  -0.067 -0.028 -0.0726 -0.1183 -0.0165 -0.084 -0.0092
B  1.7049 1.4389 2.4278 3.4554 0.9083 2.0239 0.6333
Bmin95  1.8328 1.8041 2.7345 3.6835 1.1399 2.0767 0.75
Bmax95  1.5968 1.1586 2.142 2.9375 0.7029 1.8157 0.4641
Median change  -4.90% -4.83% -4.46% -5.05% -4.05% -5.10% -5.26%
Table C.9. Mann-Kendall and Sen's tests results for the national and regional average peak (99th percentile) 1-hour sulphur dioxide indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia Northern territories
First year  2006 2006 2006 2006 2006 2006 2006
Last year  2020 2020 2020 2020 2020 2020 2020
n  15 15 15 15 15 15 15
Z-test  -4.55 -3.37 -4.06 -3.66 -2.38 -3.96 -3.66
Significant  Yes[A] Yes[A] Yes[A] Yes[A] Yes[C] Yes[A] Yes[A]
Q  -2.107 -2.618 -2.5157 -2.4964 -2.0212 -1.8743 -0.1417
Qmin95  -2.5491 -4.1499 -3.3233 -3.3328 -2.8775 -2.2784 -0.1842
Qmax95  -1.3817 -1.0994 -1.7126 -1.7092 -0.2778 -1.193 -0.0844
B  47.1364 48.826 60.4222 65.7964 43.8065 41.533 2.8833
Bmin95  49.7776 60.9093 64.8345 73.8053 50.884 44.2236 3.2276
Bmax95  39.1585 38.1955 54.9511 59.1017 24.7692 36.8239 2.3719
Median change  -4.47% -5.36% -4.16% -3.79% -4.61% -4.51% -4.91%
Table C.10. Mann-Kendall and Sen's tests results for the national and regional average volatile organic compounds indicators
Statistic National Atlantic Canada Southern Quebec Southern Ontario Prairies and northern Ontario British Columbia
First year  2006 2006 2006 2006 2006 2006
Last year  2019 2019 2019 2019 2019 2019
n  14  14 14 14 14 14
Z-test  -3.83 -1.75 -4.27 -2.74 -3.61 -2.85
Significant  Yes[A] Yes[C] Yes[A] Yes[B] Yes[A] Yes[B]
Q  -3.4837 -3.4167 -3.1375 -1.0877 -2.8114 -5.2667
Qmin95  -4.3169 -7.0755 -4.6886 -2.0137 -4.3776 -9.5376
Qmax95  -2.5894 0.7948 -2.0305 -0.3818 -1.306 -2.6289
B  105.3194 129.4167 76.6488 43.5979 126.1886 160.65
Bmin95  109.6658 149.867 88.0725 52.7153 137.4651 196.9532
Bmax95  99.5594 95.5766 66.2137 39.5616 114.4248 140.6003
Median change  -3.31% -2.64% -4.09% -2.49% -2.23% -3.28%
Annex
Annex

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