Air quality: annexes

Air quality problems such as smog and acid rain result from the release of pollutants into the atmosphere. The majority of these pollutants come from human activities, such as transportation, the burning of fuels for electricity and heating, and industry. Natural sources such as wildfires can sometimes be substantial. Air pollutants cause adverse health and environmental effects. The Air quality indicators present the concentrations of 5 key air pollutants for Canada.

Annex A

Annex A. Monitoring stations used for the national and regional indicators

**Table A.1. Legend for Table A.3. Air quality monitoring stations used in calculation of national and regional indicators**
Column	Description
NAPS ID	National Air Pollution Surveillance monitoring station identifier. Please consult the National Air Pollution Surveillance Data Products web page for the location and parameters of the National Air Pollution Surveillance stations.
Location	Location of the monitoring station.
Average fine particulate matter	The station contributes data to the time series trend analysis for annual average fine particulate matter in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Peak fine particulate matter	The station contributes data to the time series trend analysis for annual peak (98th percentile) 24-hour fine particulate matter in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Average ozone	The station contributes data to the time series trend analysis for annual average ozone in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Peak ozone	The station contributes data to the time series trend analysis for annual peak (4th-highest) 8-hour ozone in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Average nitrogen dioxide	The station contributes data to the time series trend analysis for annual average nitrogen dioxide in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Peak nitrogen dioxide	The station contributes data to the time series trend analysis for annual peak (98th percentile) daily maximum 1-hour nitrogen dioxide in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Average sulphur dioxide	The station contributes data to the time series trend analysis for annual average sulphur dioxide in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Peak sulphur dioxide	The station contributes data to the time series trend analysis for annual peak (99th percentile) 1-hour sulphur dioxide in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).
Average volatile organic compounds	The station contributes data to the time series trend analysis for annual average volatile organic compounds in the national indicator and regional indicator of the identified region, unless the cell contains n/a (not available).

**Table A.2. Acronyms for Table A.3. Air quality monitoring stations used in calculation of national and regional indicators**
Description	Acronym
Atlantic Region regional indicator	ATL
Southern Quebec regional indicator	SQC
Southern Ontario regional indicator	SON
Prairies and northern Ontario regional indicator	PNO
British Columbia regional indicator	BCO
Northern territories regional indicator	TER
Stations only used in calculation of the national indicator	NAT

**Table A.3. Air quality monitoring stations used in calculation of national and regional indicators**
NAPS ID	Location	Average fine particulate matter	Peak fine particulate matter	Average ozone	Peak ozone	Average nitrogen dioxide	Peak nitrogen dioxide	Average sulphur dioxide	Peak sulphur dioxide	Average volatile organic compounds
10102	St. John's	ATL	ATL	ATL	ATL	ATL	ATL	ATL	ATL	ATL
10301	Corner Brook	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	n/a	n/a	n/a
10401	Mount Pearl	ATL	ATL	ATL	ATL	ATL	ATL	ATL	ATL	n/a
10501	Grand Falls - Windsor	n/a	n/a	ATL	ATL	n/a	n/a	n/a	n/a	n/a
10601	Happy Valley - Goose Bay	n/a	n/a	ATL	ATL	n/a	n/a	n/a	n/a	n/a
10602	Corner Brook	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	n/a	n/a	n/a
30113	Halifax	n/a	n/a	ATL^[A]	ATL^[A]	n/a	ATL^[A]	n/a	n/a	ATL^[A]
30118	Halifax	n/a	n/a	ATL^[A]	ATL^[A]	n/a	ATL^[A]	n/a	n/a	ATL^[A]
30120	Halifax	ATL	ATL	ATL	ATL	n/a	n/a	n/a	n/a	n/a
30310	Sydney	ATL	ATL	ATL	ATL	n/a	n/a	n/a	ATL	n/a
30501	Kejimkujik	n/a	n/a	ATL^[A]	ATL^[A]	n/a	n/a	n/a	n/a	n/a
30502	Kejimkujik	n/a	n/a	ATL^[A]	ATL^[A]	n/a	n/a	n/a	n/a	n/a
30701	Aylesford	n/a	n/a	ATL	ATL	n/a	n/a	n/a	n/a	n/a
30901	Pictou	n/a	n/a	ATL	ATL	n/a	n/a	n/a	n/a	n/a
31101	Kentville	n/a	n/a	ATL	ATL	n/a	n/a	n/a	n/a	n/a
40103	Fredericton	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	n/a	n/a	n/a
40104	Fredericton	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	n/a	n/a	n/a
40203	Saint John	ATL	ATL	ATL	ATL	ATL	ATL	ATL	ATL	ATL
40206	Saint John	n/a	n/a	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	n/a
40207	Saint John	ATL	ATL	ATL	ATL	n/a	n/a	n/a	n/a	n/a
40208	Saint John	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	ATL
40209	Saint John	n/a	n/a	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	ATL^[A]	n/a
40302	Moncton	ATL	ATL	ATL	ATL	ATL	ATL	n/a	n/a	n/a
40701	Norton	n/a	n/a	ATL	ATL	n/a	n/a	n/a	n/a	n/a
40901	St. Andrews	ATL	ATL	ATL	ATL	n/a	n/a	n/a	n/a	n/a
41201	Lower Newscastle	n/a	n/a	ATL	ATL	n/a	n/a	n/a	n/a	n/a
41302	Bathurst	ATL	ATL	ATL	ATL	n/a	n/a	n/a	n/a	n/a
50103	Montreal	SQC	SQC	SQC	SQC	SQC	SQC	SQC	SQC	SQC
50104	Montreal	n/a	n/a	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	SQC^[A]
50105	Montreal	SQC^[A]	SQC^[A]	n/a	n/a	n/a	n/a	n/a	n/a	n/a
50109	Montreal	SQC	SQC	SQC	SQC	SQC	SQC	n/a	n/a	n/a
50110	Montreal	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	n/a
50113	Laval	SQC	SQC	SQC	SQC	SQC	SQC	n/a	n/a	n/a
50115	Montreal	n/a	n/a	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]
50116	Montreal	n/a	n/a	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	n/a
50119	Longueuil	SQC	SQC	SQC	SQC	SQC	SQC	n/a	n/a	n/a
50121	Brossard	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]
50122	Brossard	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]
50126	Montreal	SQC	SQC	SQC	SQC	SQC	SQC	n/a	n/a	n/a
50128	Montreal	SQC	SQC	SQC	SQC	SQC	SQC	n/a	n/a	n/a
50129	Montreal	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	SQC
50131	Montreal	SQC	SQC	n/a	n/a	n/a	n/a	n/a	n/a	n/a
50134	Montreal	n/a	n/a	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	SQC^[A]
50135	Montreal	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	n/a
50136	Montreal	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]
50138	Montreal	n/a	n/a	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	n/a
50204	Gatineau	SQC	SQC	SQC	SQC	SQC	SQC	SQC	SQC	n/a
50308	Quebec	SQC	SQC	SQC	SQC	SQC	SQC	SQC	SQC	n/a
50310	Quebec	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
50311	Quebec	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
50404	Sherbrooke	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
50504	Saguenay	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
50604	Rouyn-Noranda	SQC	SQC	SQC	SQC	n/a	n/a	SQC	SQC	n/a
50801	Trois-Rivieres	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	SQC^[A]	SQC^[A]	n/a
50802	Trois-Rivieres	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	SQC^[A]	SQC^[A]	n/a
50803	Trois Rivières	SQC^[A]	SQC^[A]	SQC^[A]	SQC^[A]	n/a	n/a	SQC^[A]	SQC^[A]	n/a
50902	Saguenay	n/a	n/a	n/a	n/a	n/a	n/a	SQC	SQC	n/a
51501	St. Zephirin-de-Courval	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
52001	Charette	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
52201	Saint-Simon	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
52301	Saint-Faustin-Lac-Carre	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
52401	La Peche	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
52801	Auclair	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
53201	La Dore	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
53301	Deschambault	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
53501	Saint-François-de-l'Île-d'Orléans	n/a	n/a	SQC	SQC	n/a	n/a	n/a	n/a	n/a
53601	Notre-Dame-du-Rosaire	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
53701	St-Hilaire-de-Dorset	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
53801	Tingwick	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
53901	Lac-Edouard	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
54201	Chapais	n/a	n/a	SQC	SQC	n/a	n/a	n/a	n/a	n/a
54401	Saint-Anicet	SQC	SQC	SQC	SQC	n/a	n/a	SQC	SQC	n/a
54901	La Patrie	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
55001	Ferme Neuve	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
55101	Senneterre	SQC	SQC	SQC	SQC	n/a	n/a	n/a	n/a	n/a
55301	Saint-Jean-sur-Richelieu	SQC	SQC	SQC	SQC	SQC	SQC	n/a	n/a	n/a
55501	Frelighsburg	n/a	n/a	SQC^[A]	SQC^[A]	n/a	n/a	n/a	n/a	n/a
55502	Frelighsburg	n/a	n/a	SQC^[A]	SQC^[A]	n/a	n/a	n/a	n/a	n/a
55701	Levis	n/a	n/a	SQC^[A]	SQC^[A]	n/a	n/a	n/a	n/a	n/a
55702	Levis	n/a	n/a	SQC^[A]	SQC^[A]	n/a	n/a	n/a	n/a	n/a
60104	Ottawa	SON	SON	SON	SON	SON	SON	SON	SON	SON
60106	Ottawa	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
60204	Windsor	SON	SON	SON	SON	SON	SON	SON	SON	n/a
60211	Windsor	SON	SON	SON	SON	SON	SON	SON	SON	SON
60302	Kingston	n/a	n/a	SON^[A]	SON^[A]	n/a	n/a	n/a	n/a	n/a
60303	Kingston	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60304	Kingston	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60410	Toronto	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
60421	Toronto	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60428	Brampton	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60429	Toronto	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60430	Toronto	SON	SON	SON	SON	SON	SON	SON	SON	n/a
60432	Mississauga	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a	n/a	n/a
60433	Toronto	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
60434	Mississauga	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a	n/a	n/a
60435	Toronto	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60440	Toronto	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60450	Brampton	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
60512	Hamilton	SON	SON	SON	SON	SON	SON	SON	SON	SON
60513	Hamilton	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON	SON	SON	SON	n/a
60521	Hamilton	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a	n/a	n/a
60609	Sudbury	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	SON^[A]	SON^[A]	n/a
60610	Sudbury	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	SON^[A]	SON^[A]	n/a
60709	Sault Ste. Marie	SON	SON	SON	SON	SON	SON	SON	SON	n/a
60809	Thunder Bay	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	n/a
60903	London	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	SON^[A]
60904	London	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	SON^[A]
61004	Sarnia	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]
61009	Sarnia	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]
61104	Peterborough	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
61201	Cornwall	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
61302	St. Catharines	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
61402	Brantford	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
61502	Kitchener	SON	SON	SON	SON	SON	SON	n/a	n/a	SON
61603	Oakville	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
61701	Oshawa	n/a	n/a	SON^[A]	SON^[A]	n/a	n/a	n/a	n/a	n/a
61702	Oshawa	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
61703	Oshawa	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	SON^[A]	n/a	n/a	n/a
61802	Guelph	SON	SON	SON	SON	n/a	n/a	n/a	n/a	n/a
62001	North Bay	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
62501	Tiverton	SON	SON	SON	SON	n/a	n/a	n/a	n/a	n/a
62601	Simcoe	SON	SON	SON	SON	SON	SON	SON	SON	SON
63001	Burlington	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
63201	Stouffville	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	SON^[A]
63301	Dorset	SON	SON	SON	SON	n/a	n/a	n/a	n/a	n/a
63601	Longwoods	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	SON
63701	Grand Bend	SON	SON	SON	SON	n/a	n/a	n/a	n/a	n/a
64001	Exp. Lakes Area	n/a	n/a	PNO	PNO	n/a	n/a	n/a	n/a	n/a
64101	Algoma	n/a	n/a	SON	SON	n/a	n/a	n/a	n/a	n/a
64401	Egbert	n/a	n/a	SON	SON	n/a	n/a	n/a	n/a	n/a
65001	Barrie	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
65101	Newmarket	SON	SON	SON	SON	SON	SON	n/a	n/a	SON^[A]
65201	Parry Sound	SON	SON	SON	SON	n/a	n/a	n/a	n/a	n/a
65301	Port Stanley	SON	SON	SON	SON	n/a	n/a	n/a	n/a	n/a
65401	Belleville	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
65801	Chatham	SON	SON	SON	SON	SON	SON	n/a	n/a	n/a
65901	Pickle Lake	n/a	n/a	PNO	PNO	n/a	n/a	n/a	n/a	n/a
66101	Bonner Lake	n/a	n/a	SON	SON	n/a	n/a	n/a	n/a	n/a
66201	Petawawa	SON	SON	SON	SON	n/a	n/a	n/a	n/a	n/a
70118	Winnipeg	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	n/a
70119	Winnipeg	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	PNO
70203	Brandon	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	n/a
70301	Flin Flon	PNO	PNO	n/a	n/a	n/a	n/a	PNO	PNO	n/a
80110	Regina	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]
80111	Regina	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]
80211	Saskatoon	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
80402	Prince Albert	n/a	n/a	PNO	PNO	PNO	PNO	PNO	PNO	n/a
90120	Edmonton	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	n/a
90121	Edmonton	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO
90130	Edmonton	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	PNO
90222	Calgary	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	n/a
90227	Calgary	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	n/a	n/a	PNO^[A]
90228	Calgary	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	n/a	n/a	PNO^[A]
90230	Calgary	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	n/a	n/a	PNO^[A]
90302	Red Deer	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
90402	Medicine Hat	PNO	PNO	PNO	PNO	PNO	PNO	n/a	n/a	n/a
90502	Lethbridge	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
90601	Fort Saskatchewan	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
90602	Fort Saskatchewan	n/a	n/a	n/a	n/a	PNO	PNO	n/a	n/a	n/a
90603	Fort Saskatchewan	n/a	n/a	n/a	n/a	PNO	PNO	PNO	PNO	n/a
90701	Fort McMurray	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
90702	Fort McMurray	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
90801	Fort Mackay	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
90802	Fort Mackay	n/a	n/a	n/a	n/a	n/a	n/a	PNO	PNO	n/a
90805	Fort Mackay	n/a	n/a	n/a	n/a	n/a	n/a	PNO	PNO	n/a
90806	Fort Mackay	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
91101	Elk Island	PNO	PNO	PNO	PNO	n/a	n/a	n/a	n/a	n/a
91301	Tomahawk	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
91401	Violet Grove	n/a	n/a	PNO	PNO	PNO	PNO	PNO	PNO	n/a
91501	Beaverlodge	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
91601	Carrot Creek	n/a	n/a	PNO	PNO	PNO	PNO	PNO	PNO	n/a
91801	Fort Chipewyan	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
91901	Caroline	n/a	n/a	PNO	PNO	PNO	PNO	PNO	PNO	n/a
92001	Grande Prairie	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
92201	Lamont	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
92601	Breton	n/a	n/a	PNO	PNO	PNO	PNO	PNO	PNO	n/a
92801	Drayton Valley	PNO	PNO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
92901	Edson	PNO	PNO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
93001	Evergreen Park	PNO	PNO	n/a	n/a	n/a	n/a	PNO	PNO	n/a
93101	Genesee	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
93801	Warburg	n/a	n/a	n/a	n/a	PNO	PNO	PNO	PNO	n/a
93901	Thorsby	PNO	PNO	n/a	n/a	PNO	PNO	PNO	PNO	n/a
94001	Debolt	PNO	PNO	n/a	n/a	n/a	n/a	PNO	PNO	n/a
94201	Sunnybrook	n/a	n/a	n/a	n/a	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	n/a
94202	Sunnybrook	n/a	n/a	n/a	n/a	PNO^[A]	PNO^[A]	PNO^[A]	PNO^[A]	n/a
94301	Cold Lake	n/a	n/a	n/a	n/a	PNO	PNO	PNO	PNO	n/a
94601	Anzac	PNO	PNO	PNO	PNO	PNO	PNO	PNO	PNO	n/a
100110	Metro Vancouver - Burnaby	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	n/a
100111	Metro Vancouver - Port Moody	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO
100112	Metro Vancouver - Vancouver	n/a	n/a	BCO	BCO	BCO	BCO	BCO	BCO	n/a
100119	Metro Vancouver - Burnaby	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO
100121	Metro Vancouver - North Vancouver	n/a	n/a	BCO	BCO	BCO	BCO	BCO	BCO	n/a
100125	Metro Vancouver - Delta	n/a	n/a	BCO	BCO	BCO	BCO	n/a	n/a	n/a
100126	Metro Vancouver - Burnaby	n/a	n/a	BCO	BCO	BCO	BCO	n/a	n/a	n/a
100127	Metro Vancouver - Surrey	n/a	n/a	BCO	BCO	BCO	BCO	n/a	n/a	n/a
100128	Metro Vancouver - Richmond	n/a	n/a	BCO	BCO	BCO	BCO	BCO	BCO	n/a
100132	Metro Vancouver - North Vancouver	n/a	n/a	BCO	BCO	BCO	BCO	BCO	BCO	n/a
100133	Metro Vancouver - Burnaby	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a	BCO
100134	Metro Vancouver - Richmond	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	n/a
100135	Metro Vancouver - Coquitlam	n/a	n/a	BCO	BCO	BCO	BCO	n/a	n/a	n/a
100136	Metro Vancouver - Burnaby	n/a	n/a	n/a	n/a	n/a	n/a	BCO	BCO	n/a
100137	Metro Vancouver - Burnaby	n/a	n/a	n/a	n/a	n/a	n/a	BCO	BCO	BCO
100138	Metro Vancouver - West Vancouver	BCO	BCO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
100202	Prince George	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO
100304	Victoria	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	n/a
100401	Kamloops	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	n/a	n/a	BCO^[A]	BCO^[A]	n/a
100402	Kamloops	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	n/a	n/a	BCO^[A]	BCO^[A]	n/a
100701	Kelowna	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	n/a
101003	Metro Vancouver - Abbotsford	n/a	n/a	BCO	BCO	BCO	BCO	BCO	BCO	n/a
101004	Metro Vancouver - Abbotsford	BCO^[A]	BCO^[A]	n/a	n/a	BCO^[A]	BCO^[A]	n/a	n/a	n/a
101005	Metro Vancouver - Abbotsford	BCO^[A]	BCO^[A]	n/a	n/a	BCO^[A]	BCO^[A]	n/a	n/a	n/a
101101	Metro Vancouver - Chilliwack	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO
101202	Metro Vancouver - Pitt Meadows	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	n/a
101301	Metro Vancouver - Langley	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	n/a
101401	Metro Vancouver - Hope	BCO	BCO	BCO	BCO	BCO	BCO	n/a	n/a	n/a
101501	Metro Vancouver - Maple Ridge	n/a	n/a	BCO	BCO	BCO	BCO	n/a	n/a	n/a
101601	Squamish	n/a	n/a	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	n/a
101603	Squamish	n/a	n/a	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	n/a
101701	Quesnel	BCO	BCO	BCO	BCO	BCO	BCO	BCO	BCO	n/a
102001	Saturna	n/a	n/a	BCO	BCO	n/a	n/a	n/a	n/a	BCO
102102	Nanaimo	BCO	BCO	BCO	BCO	BCO	BCO	n/a	n/a	n/a
102201	Trail	n/a	n/a	n/a	n/a	n/a	n/a	BCO	BCO	n/a
102401	Smithers	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	n/a	n/a	n/a	n/a	n/a
102402	Smithers	BCO^[A]	BCO^[A]	BCO^[A]	BCO^[A]	n/a	n/a	n/a	n/a	n/a
102701	Williams Lake	BCO	BCO	BCO	BCO	BCO	BCO	n/a	n/a	n/a
102801	Campbell River	BCO	BCO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
103202	Golden	BCO	BCO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
103901	Kitimat	BCO	BCO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
104003	Vernon	BCO	BCO	BCO	BCO	BCO	BCO	n/a	n/a	n/a
104301	Taylor	n/a	n/a	n/a	n/a	n/a	n/a	BCO	BCO	n/a
105001	Whistler	BCO	BCO	BCO	BCO	BCO	BCO	n/a	n/a	n/a
105101	Houston	BCO	BCO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
105201	Burns Lake	n/a	BCO	n/a	n/a	n/a	n/a	n/a	n/a	n/a
105301	Langdale	n/a	n/a	n/a	n/a	BCO	BCO	BCO	BCO	n/a
119003	Whitehorse	n/a	TER^[A]	n/a	n/a	n/a	n/a	n/a	n/a	n/a
119004	Whitehorse	n/a	TER^[A]	n/a	n/a	n/a	n/a	n/a	n/a	n/a
129003	Yellowknife	NAT	TER	TER	TER	NAT	NAT	NAT^[A]	NAT	n/a
129102	Norman Wells	n/a	n/a	TER	TER	NAT	NAT	NAT	NAT	n/a
129202	Inuvik	NAT^[A]	TER^[A]	n/a	n/a	n/a	n/a	n/a	n/a	n/a
129203	Inuvik	NAT^[A]	TER^[A]	n/a	n/a	n/a	n/a	n/a	n/a	n/a
129501	Snare Rapids	n/a	n/a	TER	TER	n/a	n/a	n/a	n/a	n/a

Note: n/a = not available. ^[A] The pollutant concentrations for the station were merged for imputation with concentrations from stations located nearby to satisfy data completeness criteria. See Annex B for details.

Annex B

Annex B. Monitoring station imputations

**Table B.1. Imputations of neighbouring stations for the national and regional average fine particulate matter indicators**
NAPS ID	Province or territory	Location
10301, 10602	Newfoundland and Labrador	Corner Brook
40103, 40104	New Brunswick	Fredericton
50105, 50136	Quebec	Montreal
50110, 50135	Quebec	Montreal
50121, 50122	Quebec	Brossard
50801, 50802, 50803	Quebec	Trois-Rivieres
60303, 60304	Ontario	Kingston
60421, 60440	Ontario	Toronto
60428, 60450	Ontario	Brampton
60429, 60435	Ontario	Toronto
60432, 60434	Ontario	Mississauga
60513, 60521	Ontario	Hamilton
60609, 60610	Ontario	Sudbury
60903, 60904	Ontario	London
61004, 61009	Ontario	Sarnia
61702, 61703	Ontario	Oshawa
80110, 80111	Saskatchewan	Regina
90227, 90228, 90230	Alberta	Calgary
100402, 100401	British Columbia	Kamloops
101004,101005	British Columbia	Abbotsford
102401, 102402	British Columbia	Smithers
129202^[A], 129203^[A]	Northwest Territories	Inuvik

Note: ^[A] The station was selected for the calculation of the indicators at the national level only.

**Table B.2. Imputations of neighbouring stations for the national and regional peak (98th percentile) 24 hour fine particulate matter indicators**
NAPS ID	Province or territory	Location
10301, 10602	Newfoundland and Labrador	Corner Brook
40103, 40104	New Brunswick	Fredericton
50105, 50136	Quebec	Montreal
50110, 50135	Quebec	Montreal
50121, 50122	Quebec	Brossard
50801, 50802, 50803	Quebec	Trois-Rivieres
60303, 60304	Ontario	Kingston
60421, 60440	Ontario	Toronto
60428, 60450	Ontario	Brampton
60429, 60435	Ontario	Toronto
60432, 60434	Ontario	Mississauga
60513,60521	Ontario	Hamilton
60609, 60610	Ontario	Sudbury
60903, 60904	Ontario	London
61004, 61009	Ontario	Sarnia
61702, 61703	Ontario	Oshawa
80110, 80111	Saskatchewan	Regina
90227, 90228, 90230	Alberta	Calgary
100401, 100402	British Columbia	Kamloops
101004,101005	British Columbia	Abbotsford
102401, 102402	British Columbia	Smithers
119003, 119004	Yukon	Whitehorse
129202, 129203	Northwest Territories	Inuvik

**Table B.3. Imputations of neighbouring stations for the national and regional average ground level ozone indicators**
NAPS ID	Province or territory	Location
10301, 10602	Newfoundland and Labrador	Corner Brook
30113, 30118	Nova Scotia	Halifax
30501, 30502	Nova Scotia	Kejimkujik
40103, 40104	New Brunswick	Fredericton
40206, 40209	New Brunswick	Saint John
50104, 50134	Quebec	Montreal
50110, 50135	Quebec	Montreal
50115, 50136	Quebec	Montreal
50116, 50138	Quebec	Montreal
50121, 50122	Quebec	Brossard
50801, 50802, 50803	Quebec	Trois-Rivieres
55501, 55502	Quebec	Frelighsburg
55701, 55702	Quebec	Levis
60302, 60303, 60304	Ontario	Kingston
60421, 60440	Ontario	Toronto
60428, 60450	Ontario	Brampton
60429, 60435	Ontario	Toronto
60432, 60434	Ontario	Mississauga
60513, 60521	Ontario	Hamilton
60609, 60610	Ontario	Sudbury
60903, 60904	Ontario	London
61004, 61009	Ontario	Sarnia
61701, 61702, 61703	Ontario	Oshawa
80110, 80111	Saskatchewan	Regina
90227, 90228, 90230	Alberta	Calgary
100401, 100402	British Columbia	Kamloops
101601, 101603	British Columbia	Squamish
102401, 102402	British Columbia	Smithers

**Table B.4. Imputations of neighbouring stations for the national and regional peak (4th highest) 8 hour ground level ozone indicators**
NAPS ID	Province or territory	Location
10301, 10602	Newfoundland and Labrador	Corner Brook
30113, 30118	Nova Scotia	Halifax
30501, 30502	Nova Scotia	Kejimkujik
40103, 40104	New Brunswick	Fredericton
40206, 40209	New Brunswick	Saint John
50104, 50134	Quebec	Montreal
50110, 50135	Quebec	Montreal
50115, 50136	Quebec	Montreal
50116, 50138	Quebec	Montreal
50121, 50122	Quebec	Brossard
50801, 50802, 50803	Quebec	Trois-Rivieres
55501, 55502	Quebec	Frelighsburg
55701, 55702	Quebec	Levis
60302, 60303, 60304	Ontario	Kingston
60421, 60440	Ontario	Toronto
60428, 60450	Ontario	Brampton
60429, 60435	Ontario	Toronto
60432, 60434	Ontario	Mississauga
60513, 60521	Ontario	Hamilton
60609, 60610	Ontario	Sudbury
60903, 60904	Ontario	London
61004, 61009	Ontario	Sarnia
61701, 61702, 61703	Ontario	Oshawa
80110, 80111	Saskatchewan	Regina
90227, 90228, 90230	Alberta	Calgary
100401, 100402	British Columbia	Kamloops
101601, 101603	British Columbia	Squamish
102401, 102402	British Columbia	Smithers

**Table B.5. Imputations of neighbouring stations for the national and regional average nitrogen dioxide indicators**
NAPS ID	Province or territory	Location
10301, 10602	Newfoundland and Labrador	Corner Brook
30113, 30118	Nova Scotia	Halifax
40103, 40104	New Brunswick	Fredericton
40206, 40209	New Brunswick	Saint John
50104, 50134	Quebec	Montreal
50110, 50135	Quebec	Montreal
50115, 50136	Quebec	Montreal
50116, 50138	Quebec	Montreal
50121, 50122	Quebec	Brossard
60303, 60304	Ontario	Kingston
60421, 60440	Ontario	Toronto
60428, 60450	Ontario	Brampton
60429, 60435	Ontario	Toronto
60903, 60904	Ontario	London
61004, 61009	Ontario	Sarnia
61702, 61703	Ontario	Oshawa
80110, 80111	Saskatchewan	Regina
90227, 90228, 90230	Alberta	Calgary
94201, 94202	Alberta	Sunnybrook
101004, 101005	British Columbia	Abbotsford
101601, 101603	British Columbia	Squamish

**Table B.6. Imputations of neighbouring stations for the national and regional peak (98th percentile) 1 hour nitrogen dioxide indicators**
NAPS ID	Province or territory	Location
10301, 10602	Newfoundland and Labrador	Corner Brook
30113, 30118	Nova Scotia	Halifax
40103, 40104	New Brunswick	Fredericton
40206, 40209	New Brunswick	Saint John
50104, 50134	Quebec	Montreal
50110, 50135	Quebec	Montreal
50115, 50136	Quebec	Montreal
50116, 50138	Quebec	Montreal
50121, 50122	Quebec	Brossard
60303, 60304	Ontario	Kingston
60421, 60440	Ontario	Toronto
60428, 60450	Ontario	Brampton
60429, 60435	Ontario	Toronto
60903, 60904	Ontario	London
61004, 61009	Ontario	Sarnia
61702, 61703	Ontario	Oshawa
80110, 80111	Saskatchewan	Regina
90227, 90228, 90230	Alberta	Calgary
94201, 94202	Alberta	Sunnybrook
101004, 101005	British Columbia	Abbotsford
101601, 101603	British Columbia	Squamish

**Table B.7. Imputations of neighbouring stations for the national and regional average sulphur dioxide indicators**
NAPS ID	Province or territory	Location
40206, 40209	New Brunswick	Saint John
50115, 50136	Quebec	Montreal
50121, 50122	Quebec	Brossard
50801, 50802, 50803	Quebec	Trois Rivières
60609, 60610	Ontario	Sudbury
61004, 61009	Ontario	Sarnia
80110, 80111	Saskatchewan	Regina
94201, 94202	Alberta	Sunnybrook
100401, 100402	British Columbia	Kamloops
101601, 101603	British Columbia	Squamish

**Table B.8. Imputations of neighbouring stations for the national and regional peak (99th percentile) 1 hour sulphur dioxide indicators**
NAPS ID	Province or territory	Location
40206, 40209	New Brunswick	Saint John
50115, 50136	Quebec	Montreal
50121, 50122	Quebec	Brossard
50801, 50802, 50803	Quebec	Trois-Rivieres
60609, 60610	Ontario	Sudbury
61004, 61009	Ontario	Sarnia
80110, 80111	Saskatchewan	Regina
94201, 94202	Alberta	Sunnybrook
100401, 100402	British Columbia	Kamloops
101601, 101603	British Columbia	Squamish

**Table B.9. Imputations of neighbouring stations for the national and regional average volatile organic compound indicators**
NAPS ID	Province or territory	Location
30113, 30118	Nova Scotia	Halifax
50104, 50134	Quebec	Montreal
50115, 50136	Quebec	Montreal
50121, 50122	Quebec	Brossard
60903, 60904	Ontario	London
61004, 61009	Ontario	Sarnia
63201, 65101	Ontario	Stouffville / Newmarket
80110, 80111	Saskatchewan	Regina
90227, 90228, 90230	Alberta	Calgary

Annex C

Annex C. Fine particulate matter measurement technological transition

Six (6) types of fine particulate matter (PM_2.5) monitors are used to measure the 1-hour concentrations of PM_2.5

older technology: Rupprecht & Patashnick tapered element oscillating microbalance (TEOM) monitor
current technology: Thermo Scientific TEOM 1400a with the Series 8500C Filter Dynamics Measurement System (FDMS) monitor
current technology: Met One BAM-1020 Beta Attenuation Mass monitor
current technology: Thermo Scientific 5030 or 5030i SHARP (Synchronized Hybrid Ambient Real-time Particulate) monitor
current Technology: GRIMM Environmental Dust Monitor model EDM 180 and 365
current technology: Teledyne Advanced Pollution Instrumentation Model T640 PM mass monitor with 640X option

The Thermo Scientific 1400a, Met One BAM-1020, Thermo Scientific SHARP and Teledyne T640 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 older tapered element oscillating microbalance instruments, which in some circumstances may under report the PM_2.5 mass concentrations relative to the National Air Pollution Surveillance PM_2.5 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 PM_2.5 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 C.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, 2005; BAM35, 2009; T640, 2019
10301	Newfoundland and Labrador	Corner Brook	TEOM, 2005; BAM35, 2010
10401	Newfoundland and Labrador	Mount Pearl	TEOM, 2005; BAM35, 2009
10602	Newfoundland and Labrador	Corner Brook	BAM35, 2009
30120	Nova Scotia	Halifax	TEOM, 2005; TEOM-SES, 2005; BAM35, 2006; T640, 2019
30310	Nova Scotia	Sydney	TEOM, 2005; TEOM-SES, 2005; BAM35, 2010; T640, 2019
40103	New Brunswick	Fredericton	TEOM, 2005; BAM35, 2006
40104	New Brunswick	Fredericton	BAM35, 2017; T640, 2019
40203	New Brunswick	Saint John	TEOM, 2005; BAM35, 2005; T640, 2018
40207	New Brunswick	Saint John	BAM35, 2005; T640, 2019
40302	New Brunswick	Moncton	TEOM, 2005; BAM35, 2007; T640, 2019
40901	New Brunswick	Saint Andrews	TEOM, 2005; BAM35, 2007; T640, 2019
41302	New Brunswick	Bathurst	TEOM, 2005; BAM35, 2007; T640, 2019
50103	Quebec	Montreal	TEOM-SES, 2005; TEOM-FDMS, 2007; SHARP5030, 2016
50105	Quebec	Montreal	TEOM-SES, 2005; TEOM-FDMS, 2007
50109	Quebec	Montreal	TEOM-SES, 2005; TEOM-FDMS, 2008; SHARP5030, 2016
50110	Quebec	Montreal	TEOM-SES, 2005; TEOM-FDMS, 2008
50113	Quebec	Laval	TEOM-SES, 2005; BAM35, 2008; T640, 2018
50119	Quebec	Longueuil	TEOM-SES, 2005; BAM35, 2008; T640, 2018
50121	Quebec	Brossard	TEOM-SES, 2005; BAM35, 2008
50122	Quebec	Brossard	BAM35, 2016; T640, 2018
50126	Quebec	Montreal	TEOM-SES, 2005; TEOM-FDMS, 2008; SHARP5030, 2016
50128	Quebec	Montreal	TEOM-SES, 2005; GRIM, 2013; TEOM-FDMS, 2008; SHARP5030, 2016
50129	Quebec	Montreal	TEOM-SES, 2006; TEOM-FDMS, 2005; BAM35, 2005; SHARP5030, 2014
50131	Quebec	Montreal	TEOM-SES, 2005; GRIM, 2013; TEOM-FDMS, 2007
50135	Quebec	Montreal	TEOM-SES, 2013; TEOM-FDMS, 2013; BAM35, 2013; SHARP5030, 2016
50136	Quebec	Montreal	SHARP5030, 2016
50204	Quebec	Gatineau	TEOM-SES, 2005; BAM35, 2009; T640, 2019
50308	Quebec	Quebec	TEOM-SES, 2005; BAM35, 2009; T640, 2017
50310	Quebec	Quebec	TEOM-SES, 2005; BAM35, 2009; T640, 2018
50311	Quebec	Quebec	BAM35, 2005; T640, 2017
50404	Quebec	Sherbrooke	TEOM-SES, 2005; BAM35, 2008; T640, 2018
50504	Quebec	Saguenay	TEOM-SES, 2005; BAM35, 2009; T640, 2018
50604	Quebec	Rouyn-Noranda	BAM35, 2005; T640, 2019
50801	Quebec	Trois-Rivières	TEOM-SES, 2005; BAM35, 2008
50802	Quebec	Trois-Rivières	BAM35, 2011
50803	Quebec	Trois-Rivières	BAM35, 2014; T640, 2018
51501	Quebec	St. Zephirin-de-Courval	BAM35, 2005; T640, 2019
52001	Quebec	Charette	BAM35, 2005; T640, 2019
52201	Quebec	Saint-Simon	BAM35, 2005
52301	Quebec	Saint-Faustin-Lac-Carré	BAM35, 2005
52401	Quebec	La Pêche	BAM35, 2005; T640, 2019
52801	Quebec	Auclair	BAM35, 2005; T640, 2017
53201	Quebec	La Doré	BAM35, 2005
53301	Quebec	Deschambault	BAM35, 2005; T640, 2017
53601	Quebec	Notre-Dame-du-Rosaire	BAM35, 2005
53701	Quebec	St-Hilaire-de-Dorset	BAM35, 2005; T640, 2018
53801	Quebec	Tingwick	BAM35, 2005; T640, 2019
53901	Quebec	Lac Edouard	BAM35, 2006
54401	Quebec	Saint-Anicet	TEOM, SES, 2005; GRIM, 2008; BAM35, 2006; T640, 2019
54901	Quebec	La Patrie	BAM35, 2005; T640, 2019
55001	Quebec	Ferme Neuve	BAM35, 2005
55101	Quebec	Senneterre	BAM35, 2005; T640, 2019
55301	Quebec	Saint-Jean-sur-Richelieu	TEOM-SES, 2005; BAM35, 2005; T640, 2019
60104	Ontario	Ottawa	TEOM-SES, 2005; SHARP5030, 2013
60106	Ontario	Ottawa	TEOM-SES, 2007; SHARP5030, 2013
60204	Ontario	Windsor	TEOM-SES, 2005; SHARP5030, 2013
60211	Ontario	Windsor	TEOM-SES, 2005; SHARP5030, 2013
60303	Ontario	Kingston	TEOM-SES, 2007; SHARP5030, 2013
60304	Ontario	Kingston	SHARP5030, 2013
60410	Ontario	Toronto	TEOM-SES, 2005; SHARP5030, 2013
60421	Ontario	Toronto	TEOM-SES, 2005; SHARP5030, 2013
60428	Ontario	Brampton	TEOM-SES, 2005; SHARP5030, 2013
60429	Ontario	Toronto	TEOM-SES, 2005
60430	Ontario	Toronto	TEOM-SES, 2005; SHARP5030, 2013
60432	Ontario	Mississauga	TEOM-SES, 2005
60433	Ontario	Toronto	TEOM-SES, 2005; 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, 2016
60512	Ontario	Hamilton	TEOM-SES, 2005; SHARP5030, 2013
60513	Ontario	Hamilton	TEOM-SES, 2005; SHARP5030, 2013
60521	Ontario	Hamilton	SHARP5030, 2018
60609	Ontario	Sudbury	TEOM-SES, 2005
60610	Ontario	Sudbury	TEOM, 2013; SHARP5030, 2013
60709	Ontario	Sault Ste. Marie	TEOM-SES, 2005; SHARP5030, 2013
60809	Ontario	Thunder Bay	TEOM-SES, 2005; SHARP5030, 2013
60903	Ontario	London	TEOM-SES, 2005
60904	Ontario	London	TEOM-FDMS, 2013; BAM35, 2013; SHARP5030, 2013
61004	Ontario	Sarnia	TEOM-SES, 2005; SHARP5030, 2013
61009	Ontario	Sarnia	SHARP5030, 2016
61104	Ontario	Peterborough	TEOM-SES, 2005; SHARP5030, 2013
61201	Ontario	Cornwall	TEOM-SES, 2005; SHARP5030, 2013
61302	Ontario	St. Catharines	TEOM-SES, 2005; SHARP5030, 2013
61402	Ontario	Brantford	TEOM-SES, 2005; SHARP5030, 2013
61502	Ontario	Kitchener	TEOM-SES, 2005; SHARP5030, 2013
61603	Ontario	Oakville	TEOM-SES, 2005; SHARP5030, 2013
61702	Ontario	Oshawa	TEOM-SES, 2005; SHARP5030, 2013
61703	Ontario	Oshawa	SHARP5030, 2018
61802	Ontario	Guelph	TEOM-SES, 2005; SHARP5030, 2013
62001	Ontario	North Bay	TEOM-SES, 2005; SHARP5030, 2013
62501	Ontario	Tiverton	TEOM-SES, 2005; SHARP5030, 2013
62601	Ontario	Simcoe	TEOM-SES, 2005; SHARP5030, 2013
63001	Ontario	Burlington	TEOM-SES, 2005; SHARP5030, 2013
63301	Ontario	Dorset	TEOM-SES, 2005; SHARP5030, 2013
63701	Ontario	Grand Bend	TEOM-SES, 2005; SHARP5030, 2013
65001	Ontario	Barrie	TEOM-SES, 2005; SHARP5030, 2013
65101	Ontario	Newmarket	TEOM-SES, 2005; SHARP5030, 2013
65201	Ontario	Parry Sound	TEOM-SES, 2005; SHARP5030, 2013
65301	Ontario	Port Stanley	TEOM-SES, 2005; SHARP5030, 2013
65401	Ontario	Belleville	TEOM-SES, 2005; SHARP5030, 2013
65801	Ontario	Chatham	TEOM-SES, 2005; SHARP5030, 2013
66201	Ontario	Petawawa	TEOM-SES, 2007; SHARP5030, 2013
70118	Manitoba	Winnipeg	TEOM, 2005; SHARP5030, 2011
70119	Manitoba	Winnipeg	TEOM, 2005; TEOM-SES, 2013; SHARP5030, 2011
70203	Manitoba	Brandon	TEOM, 2005; SHARP5030, 2011
70301	Manitoba	Flin Flon	TEOM, 2005; SHARP5030, 2011
80110	Saskatchewan	Regina	TEOM, 2005; BAM35, 2009
80111	Saskatchewan	Regina	BAM35, 2011; T640, 2019
80211	Saskatchewan	Saskatoon	TEOM, 2005; BAM35, 2009; T640, 2018
90120	Alberta	Edmonton	TEOM, 2009; TEOM-SES, 2005; TEOM-FDMS, 2010; BAM35, 2016; SHARP5030, 2016
90121	Alberta	Edmonton	TEOM, 2009; TEOM-SES, 2005; TEOM-FDMS, 2010; SHARP5030, 2015
90130	Alberta	Edmonton	TEOM, 2009; TEOM-SES, 2005; TEOM-FDMS, 2010
90222	Alberta	Calgary	TEOM, 2009; TEOM-SES, 2005; TEOM-FDMS, 2010; SHARP5030, 2015
90227	Alberta	Calgary	TEOM-SES, 2005
90228	Alberta	Calgary	TEOM, 2008; TEOM-FDMS, 2010; BAM35, 2012
90230	Alberta	Calgary	BAM35, 2015; SHARP5030, 2015
90302	Alberta	Red Deer	TEOM, 2005; TEOM-FDMS, 2010; SHARP5030, 2013
90402	Alberta	Medicine Hat	TEOM, 2005; TEOM-FDMS, 2010; SHARP5030, 2013
90502	Alberta	Lethbridge	TEOM, 2009; TEOM-SES, 2005; TEOM-FDMS, 2012; SHARP5030, 2016
90601	Alberta	Fort Saskatchewan	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2013
90701	Alberta	Fort McMurray	TEOM, 2005; TEOM-SES, 2010; TEOM-FDMS, 2011; SHARP5030, 2011
90702	Alberta	Fort McMurray	TEOM, 2005; TEOM-SES, 2012; SHARP5030, 2013; T640, 2019
90801	Alberta	Fort Mackay	TEOM, 2005; TEOM-SES, 2010; TEOM-FDMS, 2011; SHARP5030, 2011; T640, 2019
90806	Alberta	Fort Mackay	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2012
91101	Alberta	Elk Island	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2013
91301	Alberta	Tomahawk	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2015
91501	Alberta	Beaverlodge	TEOM, 2005; TEOM-SES, 2014; TEOM-FDMS, 2010; SHARP5030, 2019
91801	Alberta	Fort Chipewyan	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2013
92001	Alberta	Grande Prairie	TEOM, 2005; TEOM-SES, 2010; TEOM-FDMS, 2010; SHARP5030, 2012
92201	Alberta	Lamont	TEOM, 2009; BAM35, 2006; SHARP5030, 2016
92801	Alberta	Drayton Valley	TEOM, 2005; TEOM-SES, 2010; TEOM-FDMS, 2012; SHARP5030, 2015
92901	Alberta	Edson	TEOM, 2005; TEOM-SES, 2011; TEOM-FDMS, 2019
93001	Alberta	Evergreen Park	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2015
93101	Alberta	Genesee	TEOM, 2005; TEOM-SES, 2011; SHARP5030, 2017
93901	Alberta	Thorsby	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2019
94001	Alberta	Debolt	TEOM, 2005; TEOM-SES, 2010; SHARP5030, 2015
94601	Alberta	Anzac	TEOM-SES, 2006; SHARP5030, 2011
100110	British Columbia	Burnaby	TEOM-SES, 2005; SHARP5030, 2013
100111	British Columbia	Port Moody	TEOM-SES, 2005; SHARP5030, 2013
100119	British Columbia	Burnaby	TEOM-SES, 2005; SHARP5030, 2013
100134	British Columbia	Richmond	TEOM-SES, 2005; SHARP5030, 2013
100138	British Columbia	Vancouver	TEOM-SES, 2005; SHARP5030, 2013
100202	British Columbia	Prince George	TEOM, 2005; SHARP5030, 2014
100304	British Columbia	Victoria	TEOM, 2005; BAM35, 2009
100401	British Columbia	Kamloops	BAM35, 2010; SHARP5030, 2017
100402	British Columbia	Kamloops	TEOM, 2005
100701	British Columbia	Kelowna	TEOM, 2005; SHARP5030, 2014
101004	British Columbia	Abbotsford	TEOM-SES-2005
101005	British Columbia	Abbotsford	SHARP5030-2012
101101	British Columbia	Chilliwack	TEOM-SES, 2005; SHARP5030, 2013
101202	British Columbia	Pitt Meadows	TEOM-SES, 2005; SHARP5030, 2013
101301	British Columbia	Langley	TEOM, 2014; TEOM-SES, 2005; SHARP5030, 2013
101401	British Columbia	Hope	TEOM-SES, 2005; SHARP5030, 2013
101701	British Columbia	Quesnel	TEOM, 2005; SHARP5030, 2014
102102	British Columbia	Nanaimo	TEOM, 2005; BAM35, 2014
102401	British Columbia	Smithers	TEOM, 2005; BAM35, 2013; SHARP5030, 2014
102402	British Columbia	Smithers	SHARP5030, 2019
102701	British Columbia	Williams Lake	TEOM, 2005; SHARP5030, 2014
102801	British Columbia	Campbell River	TEOM, 2006; BAM35, 2014
103202	British Columbia	Golden	TEOM, 2005; SHARP5030, 2014
103901	British Columbia	Kitimat	TEOM, 2005; BAM35, 2014
104003	British Columbia	Vernon	TEOM, 2005; SHARP5030, 2014
105001	British Columbia	Whistler	TEOM, 2005; BAM35, 2013
105101	British Columbia	Houston	TEOM, 2005; SHARP5030, 2014
105201	British Columbia	Burns Lake	TEOM, 2006; SHARP5030, 2014
119003	Yukon	Whitehorse	TEOM, 2005
119004	Yukon	Whitehorse	BAM35, 2015; SHARP5030, 2012; T640, 2019
129003	Northwest territories	Yellowknife	BAM35, 2005
129202	Northwest territories	Inuvik	BAM35, 2006
129203	Northwest territories	Inuvik	BAM35, 2011

Annex D

Annex D. Volatile organic compounds targeted for quantification

**Table D.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	115-11-7/115-11-7
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 E

Annex E. Percentiles of the national and regional indicators

**Table E.1. Percentiles for the national average fine particulate matter concentrations indicator**
Year	10th percentile (micrograms per cubic metre)	90th percentile (micrograms per cubic metre)
2005	3.6	10
2006	4.0	8.1
2007	3.6	8.3
2008	3.9	8.5
2009	3.8	8.4
2010	3.9	10.1
2011	3.7	9.6
2012	3.9	9.4
2013	4.4	9.2
2014	5.1	9.5
2015	4.9	9.3
2016	4.1	8.2
2017	4.5	8.5
2018	4.9	10.7
2019	4.4	7.8

Note: The national average PM_2.5 concentration indicator is based on the annual average of the daily 24-hour average concentrations for PM_2.5 recorded at 145 monitoring stations across Canada.

**Table E.2. Percentiles for the regional average fine particulate matter concentrations indicator**
Year	Atlantic Canada 10th percentile (micrograms per cubic metre)	Atlantic Canada 90th percentile (micrograms per cubic metre)	Southern Quebec 10th percentile (micrograms per cubic metre)	Southern Quebec 90th percentile (micrograms per cubic metre)	Southern Ontario 10th percentile (micrograms per cubic metre)	Southern Ontario 90th percentile (micrograms per cubic metre)	Prairies and northern Ontario 10th percentile (micrograms per cubic metre)	Prairies and northern Ontario 90th percentile (micrograms per cubic metre)	British Columbia 10th percentile (micrograms per cubic metre)	British Columbia 90th percentile (micrograms per cubic metre)
2005	2.7	7.2	6.1	11.0	5.8	10.4	3.3	5.3	4.4	7.1
2006	3.0	8.7	4.8	8.5	5.2	8.8	4.0	5.8	3.7	6.9
2007	2.8	6.8	4.9	8.6	5.0	9.1	3.4	5.6	3.4	6.5
2008	3.3	6.3	4.3	12.7	4.4	8.3	3.4	6.4	4.0	6.5
2009	2.7	6.9	3.6	12.4	3.8	6.7	3.7	7.7	3.9	6.7
2010	2.8	7.2	4.7	11.4	4.0	7.7	4.7	14.5	3.4	8.8
2011	5.1	8.5	4.0	10.5	4.2	7.7	3.6	10.4	3.3	6.5
2012	3.9	6.6	3.9	11.8	4.1	7.4	4.1	9.4	3.3	7.1
2013	4.5	7.0	4.6	10.6	5.6	9.2	3.8	8.7	3.9	8.9
2014	5.2	7.3	4.9	9.6	5.8	9.8	4.6	9.0	5.2	9.1
2015	3.9	7.6	5.0	9.3	5.7	9.4	4.1	10.3	5.0	9.4
2016	4.1	7.9	4.0	8.4	4.8	8.1	4.0	9.5	3.9	8.4
2017	3.9	7.1	4.3	8.5	4.6	7.8	4.5	8.2	5.9	14.2
2018	4.3	5.8	4.3	8.8	5.4	8.2	6.1	11.6	5.4	15.4
2019	4.4	5.5	4.5	7.7	4.5	7.8	4.6	7.8	4.5	8.6

Note: The regional average PM_2.5 concentration indicator is based on the annual average of the daily 24-hour average concentrations recorded at 11 monitoring stations in Atlantic Canada, 36 in southern Quebec, 39 in southern Ontario, 33 in the Prairies and northern Ontario region and 24 in British Columbia.

**Table E.3. Percentiles for the national peak fine particulate matter concentrations indicator**
Year	10th percentile (micrograms per cubic metre)	90th percentile (micrograms per cubic metre)
2005	10.4	38.8
2006	12.3	25.2
2007	11.2	28.9
2008	11.1	25.8
2009	11.5	24.7
2010	12.6	33.2
2011	10.7	26.4
2012	11.3	27.0
2013	13.1	25.0
2014	13.0	29.1
2015	13.7	29.3
2016	10.1	22.2
2017	11.5	39.4
2018	12.4	60.5
2019	10.5	23.4

Note: The national peak PM_2.5 concentration indicator is based on the annual 98th percentile of the daily 24-hour average concentrations recorded at 147 monitoring stations across Canada.

**Table E.4. Percentiles for the regional peak fine particulate matter concentrations indicator**
Year	Atlantic Canada 10th percentile (micrograms per cubic metre)	Atlantic Canada 90th percentile (micrograms per cubic metre)	Southern Quebec 10th percentile (micrograms per cubic metre)	Southern Quebec 90th percentile (micrograms per cubic metre)	Southern Ontario 10th percentile (micrograms per cubic metre)	Southern Ontario 90th percentile (micrograms per cubic metre)	Prairies and northern Ontario 10th percentile (micrograms per cubic metre)	Prairies and northern Ontario 90th percentile (micrograms per cubic metre)	British Columbia 10th percentile (micrograms per cubic metre)	British Columbia 90th percentile (micrograms per cubic metre)	Northern Territories 10th percentile (micrograms per cubic metre)	Northern Territories 90th percentile (micrograms per cubic metre)
2005	9.3	25.1	25.3	44.6	29.9	36.1	8.8	16.1	11.0	21.5	11.0	12.8
2006	7.2	23.4	16.4	26.1	18.7	28.0	13.1	18.3	11.1	21.6	4.6	6.7
2007	7.1	26.1	16.6	26.5	20.4	31.1	10.6	16.4	9.4	20.6	11.2	12.8
2008	9.0	19.0	14.0	32.6	16.5	24.1	10.0	20.0	11.0	21.3	7.6	28.5
2009	8.7	17.4	11.5	33.0	11.3	17.5	11.5	17.6	12.0	22.9	11.2	22.2
2010	11.1	22.0	17.6	32.0	13.6	25.0	14.6	42.4	10.2	50.7	6.3	15.4
2011	11.7	18.8	12.2	26.7	12.8	22.8	11.4	49.3	7.7	18.0	7.5	25.8
2012	10.0	15.3	12.0	29.8	13.3	20.6	12.1	23.5	10.2	19.9	8.9	17.8
2013	14.9	19.0	13.2	27.3	15.0	22.9	12.5	26.5	10.2	22.8	10.1	31.9
2014	12.5	16.5	12.0	23.7	14.0	25.5	15.3	33.7	15.3	31.5	9.8	130.9
2015	9.8	19.9	13.0	24.7	14.3	24.4	14.7	46.2	13.7	28.9	15.0	31.6
2016	9.7	18.8	9.9	21.2	12.3	19.7	11.4	33.1	9.7	21.8	6.8	19.7
2017	10.1	15.7	10.5	22.7	12.1	19.3	14.9	34.3	23.5	86.6	11.4	21.8
2018	8.9	13.4	12.1	23.5	14.0	21.2	27.7	64.2	25.1	117.2	9.4	12.8
2019	9.3	12.3	11.8	20.4	12.5	20.8	13.9	27.7	9.9	23.1	10.3	28.7

Note: The regional peak PM_2.5 concentration indicator is based on the annual 98th percentile of the daily 24-hour average concentrations recorded at 11 monitoring stations in Atlantic Canada, 36 in southern Quebec, 39 in southern Ontario, 33 in the Prairies and northern Ontario region, 25 in British Columbia and 3 in the northern territories region.

**Table E.5. Percentiles for the national average ozone concentrations indicator**
Year	10th percentile (parts per billion)	90th percentile (parts per billion)
2005	24	40
2006	26	39
2007	26	40
2008	27	39
2009	26	37
2010	27	39
2011	28	39
2012	28	39
2013	26	38
2014	28	38
2015	27	38
2016	26	39
2017	29	38
2018	29	38
2019	27	37

Note: The national average O₃ concentration indicator is based on the annual average of the daily maximum 8‑hour average concentrations recorded at 171 monitoring stations across Canada.

**Table E.6. Percentiles for the regional average ozone concentrations indicator**
Year	Atlantic Canada 10th percentile (parts per billion)	Atlantic Canada 90th percentile (parts per billion)	Southern Quebec 10th percentile (parts per billion)	Southern Quebec 90th percentile (parts per billion)	Southern Ontario 10th percentile (parts per billion)	Southern Ontario 90th percentile (parts per billion)	Prairies and northern Ontario 10th percentile (parts per billion)	Prairies and northern Ontario 90th percentile (parts per billion)	British Columbia 10th percentile (parts per billion)	British Columbia 90th percentile (parts per billion)	Northern Territories 10th percentile (parts per billion)	Northern Territories 90th percentile (parts per billion)
2005	29	39	30	37	34	44	23	38	21	30	32	32
2006	28	38	28	35	33	40	25	39	24	33	27	33
2007	27	37	29	36	35	43	26	39	21	31	27	29
2008	30	36	29	36	33	41	27	39	23	32	28	28
2009	28	35	26	34	32	39	27	40	24	33	27	27
2010	30	35	29	37	34	41	29	37	25	32	29	34
2011	30	36	29	36	33	39	31	40	24	33	29	33
2012	29	35	30	37	35	41	28	39	25	34	28	33
2013	28	37	32	36	34	39	29	39	22	32	25	32
2014	29	36	30	36	33	40	28	37	24	32	28	33
2015	28	36	31	37	34	40	27	37	23	32	29	33
2016	30	34	31	35	34	40	27	35	23	31	28	34
2017	31	37	31	36	33	39	31	38	24	34	20	34
2018	31	37	32	37	34	39	30	38	24	32	30	32
2019	30	37	32	36	33	38	29	36	22	32	31	32

Note: The regional average O₃ concentration indicator is based on the annual average of the daily maximum 8‑hour average concentrations recorded at 21 monitoring stations in Atlantic Canada, 41 in southern Quebec, 42 in southern Ontario, 34 in the Prairies and northern Ontario region, 30 in British Columbia, and 3 in the northern territories region.

**Table E.7. Percentiles for the national peak ozone concentrations indicator**
Year	10th percentile (parts per billion)	90th percentile (parts per billion)
2005	46	82
2006	49	74
2007	48	82
2008	49	73
2009	49	68
2010	48	71
2011	47	68
2012	48	77
2013	47	66
2014	46	64
2015	49	67
2016	43	69
2017	47	67
2018	49	68
2019	46	62

**Table E.8. Percentiles for the regional peak ozone concentrations indicator**
Year	Atlantic Canada 10th percentile (parts per billion)	Atlantic Canada 90th percentile (parts per billion)	Southern Quebec 10th percentile (parts per billion)	Southern Quebec 90th percentile (parts per billion)	Southern Ontario 10th percentile (parts per billion)	Southern Ontario 90th percentile (parts per billion)	Prairies and northern Ontario 10th percentile (parts per billion)	Prairies and northern Ontario 90th percentile (parts per billion)	British Columbia 10th percentile (parts per billion)	British Columbia 90th percentile (parts per billion)	Northern Territories 10th percentile (parts per billion)	Northern Territories 90th percentile (parts per billion)
2005	46	64	61	75	73	92	46	61	42	60	53	53
2006	48	65	57	68	67	81	49	67	43	65	46	53
2007	47	64	63	72	72	91	49	66	42	59	44	46
2008	46	59	53	66	65	77	49	65	46	59	46	49
2009	48	61	51	59	61	71	50	64	44	61	42	48
2010	45	59	54	65	64	78	52	65	43	57	44	48
2011	47	55	50	60	59	78	54	65	41	53	48	54
2012	44	58	55	67	67	82	49	61	42	58	48	52
2013	43	55	54	60	60	68	52	62	43	54	49	52
2014	45	51	50	57	56	69	50	59	41	54	44	48
2015	43	58	55	64	63	70	53	66	45	58	44	48
2016	43	53	53	62	61	73	52	62	39	50	44	47
2017	45	67	50	62	56	68	51	58	43	66	37	51
2018	47	59	54	63	60	73	55	67	45	68	47	50
2019	46	52	50	55	52	68	53	65	41	52	44	48

Note: The regional peak O₃ concentration indicator is based on the annual 4th‑highest of the daily maximum 8-hour average concentrations recorded at 21 monitoring stations in Atlantic Canada, 41 in southern Quebec, 42 in southern Ontario, 34 in the Prairies and northern Ontario region, 30 in British Columbia, and 3 in the northern territories region.

Table E.9. Percentiles for the national average nitrogen dioxide concentrations indicator
Year	10th percentile (parts per billion)	90th percentile (parts per billion)
2005	4.5	19.7
2006	3.9	17.4
2007	4.3	17.0
2008	4.0	16.0
2009	3.6	15.1
2010	4.3	14.3
2011	3.8	14.0
2012	3.5	13.5
2013	3.5	13.6
2014	3.5	14.0
2015	3.4	12.6
2016	3.5	12.0
2017	2.8	13.3
2018	3.1	11.8
2019	3.1	12.1

Note: The national average NO₂ concentration indicator is based on the annual average of the hourly concentrations recorded at 119 monitoring stations across Canada.

Table E.10. Percentiles for the regional average nitrogen dioxide concentrations indicator
Year	Atlantic Canada 10th percentile (parts per billion)	Atlantic Canada 90th percentile (parts per billion)	Southern Quebec 10th percentile (parts per billion)	Southern Quebec 90th percentile (parts per billion)	Southern Ontario 10th percentile (parts per billion)	Southern Ontario 90th percentile (parts per billion)	Prairies and northern Ontario 10th percentile (parts per billion)	Prairies and northern Ontario 90th percentile (parts per billion)	British Columbia 10th percentile (parts per billion)	British Columbia 90th percentile (parts per billion)
2005	2.4	9.3	6.5	24.3	8.5	20.6	4.1	14.3	8.5	18.1
2006	1.6	6.3	5.0	21.4	7.7	19.1	3.2	14.7	8.5	17.0
2007	1.9	6.5	4.8	20.8	5.7	18.2	3.7	13.4	7.9	16.1
2008	1.8	7.5	8.0	19.3	5.5	17.0	3.6	13.1	7.9	15.2
2009	1.0	5.1	7.2	18.4	5.6	15.8	3.5	13.4	6.6	15.5
2010	1.7	6.9	6.8	12.7	5.0	16.1	3.7	13.1	6.7	13.4
2011	1.7	6.2	7.4	17.5	4.6	15.4	2.9	11.8	6.3	13.3
2012	1.5	6.0	6.1	15.9	4.0	14.0	3.0	11.7	6.1	14.0
2013	1.8	7.2	6.3	15.6	4.7	13.6	2.9	11.7	5.3	14.4
2014	1.5	6.2	5.5	15.2	4.5	14.2	2.9	11.8	5.8	14.0
2015	1.5	5.6	5.3	15.2	4.8	13.9	2.6	10.5	5.9	13.8
2016	1.5	5.4	5.2	11.6	4.4	13.3	3.2	9.7	5.5	12.4
2017	1.6	6.9	5.5	11.6	4.4	13.0	2.2	10.7	5.5	14.1
2018	1.5	5.3	5.5	11.4	3.8	11.8	2.9	11.8	4.3	12.9
2019	1.2	3.9	5.0	11.2	3.9	12.5	2.5	11.0	5.2	13.6

Note: The regional average NO₂ concentration indicator is based on the annual average of the hourly concentrations recorded at 7 monitoring stations in Atlantic Canada, 14 in southern Quebec, 30 in southern Ontario, 37 in the Prairies and northern Ontario region, and 29 in British Columbia.

Table E.11. Percentiles for the national peak nitrogen dioxide concentrations indicator
Year	10th percentile (parts per billion)	90th percentile (parts per billion)
2005	28.0	66.0
2006	27.0	59.0
2007	28.0	58.0
2008	28.0	59.0
2009	26.0	56.0
2010	28.2	55.0
2011	25.0	53.0
2012	25.0	47.4
2013	24.9	50.6
2014	25.6	53.7
2015	23.2	49.6
2016	24.0	47.4
2017	20.8	48.4
2018	23.3	51.3
2019	21.9	49.1

Note: The national peak NO₂ concentration indicator is based on the annual 98th percentile of the daily maximum 1-hour average concentrations recorded at 120 monitoring stations across Canada.

Table E.12. Percentiles for the regional peak nitrogen dioxide concentrations indicator
Year	Atlantic Canada 10th percentile (parts per billion)	Atlantic Canada 90th percentile (parts per billion)	Southern Quebec 10th percentile (parts per billion)	Southern Quebec 90th percentile (parts per billion)	Southern Ontario 10th percentile (parts per billion)	Southern Ontario 90th percentile (parts per billion)	Prairies and northern Ontario 10th percentile (parts per billion)	Prairies and northern Ontario 90th percentile (parts per billion)	British Columbia 10th percentile (parts per billion)	British Columbia 90th percentile (parts per billion)
2005	27.0	68.0	50.0	66.0	50.0	68.0	26.0	62.0	34.0	51.0
2006	24.0	66.0	38.0	56.0	37.0	63.0	26.0	60.0	32.0	49.0
2007	22.0	38.0	38.0	65.0	34.0	58.0	28.0	60.0	31.0	47.0
2008	20.0	40.0	42.0	65.0	34.0	59.0	27.0	56.0	31.0	47.0
2009	18.0	39.0	38.0	58.0	35.0	55.0	26.0	58.0	30.0	49.0
2010	24.0	48.0	41.0	47.0	31.0	56.0	29.0	55.0	27.8	41.0
2011	21.6	49.4	42.0	55.0	36.0	56.0	24.0	53.0	24.8	42.3
2012	15.9	42.0	33.0	48.0	26.0	49.0	25.7	51.5	24.5	43.5
2013	23.9	44.3	37.2	49.0	29.2	49.0	25.5	55.5	24.4	43.2
2014	22.8	38.7	36.3	53.7	36.6	57.1	24.0	55.8	25.2	46.2
2015	20.3	49.4	37.6	52.5	37.1	54.7	21.6	52.3	25.1	42.4
2016	19.9	34.3	36.4	47.3	27.0	52.6	23.0	50.2	22.8	43.7
2017	20.8	35.7	36.9	48.8	28.3	45.4	16.0	49.9	26.2	49.9
2018	20.8	38.2	39.1	48.7	29.0	46.9	19.7	59.1	25.6	46.8
2019	21.2	32.0	37.4	47.9	30.4	51.8	19.0	53.9	23.8	43.8

Note: The regional peak NO₂ concentration indicator is based on the annual 98th percentile of the daily maximum 1-hour average concentrations recorded at 8 monitoring stations in Atlantic Canada, 14 in southern Quebec, 30 in southern Ontario, 37 in the Prairies and northern Ontario region, and 29 in British Columbia.

Table E.13. Percentiles for the national average sulphur dioxide concentrations indicator
Year	10th percentile (parts per billion)	90th percentile (parts per billion)
2005	0.4	5.1
2006	0.4	4.8
2007	0.3	4.7
2008	0.4	3.6
2009	0.3	3.3
2010	0.3	2.8
2011	0.3	2.9
2012	0.2	2.8
2013	0.2	2.4
2014	0.2	2.4
2015	0.2	2.0
2016	0.1	1.8
2017	0.1	1.4
2018	0.1	1.4
2019	0.1	1.3

Note: The national average SO₂ concentration indicator is based on the annual average of the hourly concentrations recorded at 80 monitoring stations across Canada.

Table E.14. Percentiles for the regional average sulphur dioxide concentrations indicator
Year	Atlantic Canada 10th percentile (parts per billion)	Atlantic Canada 90th percentile (parts per billion)	Southern Quebec 10th percentile (parts per billion)	Southern Quebec 90th percentile (parts per billion)	Southern Ontario 10th percentile (parts per billion)	Southern Ontario 90th percentile (parts per billion)	Prairies and northern Ontario 10th percentile (parts per billion)	Prairies and northern Ontario 90th percentile (parts per billion)	British Columbia 10th percentile (parts per billion)	British Columbia 90th percentile (parts per billion)
2005	0.7	5.2	0.9	12.3	1.5	7.8	0.3	1.6	0.4	3.4
2006	0.9	3.8	0.6	8.7	1.1	8.3	0.4	1.5	0.3	4.4
2007	0.5	5.2	0.4	6.7	0.8	8.0	0.2	1.5	0.3	2.8
2008	0.4	3.3	0.4	8.7	0.9	7.7	0.2	1.5	0.5	2.9
2009	0.8	2.0	0.2	4.5	0.6	4.5	0.2	1.4	0.6	3.2
2010	0.3	1.0	0.2	3.5	0.2	3.9	0.1	1.3	0.3	2.7
2011	0.4	1.0	0.1	4.7	0.4	5.3	0.2	1.1	0.3	2.0
2012	0.6	2.4	0.2	6.1	0.3	4.8	0.2	1.1	0.3	2.4
2013	0.3	1.8	0.2	5.4	0.4	4.9	0.2	1.3	0.2	2.2
2014	0.1	2.4	0.4	6.1	0.4	5.1	0.1	1.2	0.2	1.7
2015	0.2	2.0	0.3	5.4	0.3	4.3	0.1	1.0	0.3	1.0
2016	0.2	1.7	0.2	5.8	0.0	3.2	0.0	1.0	0.2	1.0
2017	0.2	1.1	0.1	6.3	0.2	3.6	0.1	1.0	0.2	0.9
2018	0.4	2.0	0.1	5.3	0.2	5.0	0.1	0.9	0.2	0.9
2019	0.4	1.8	0.1	5.5	0.2	4.8	0.1	0.9	0.2	1.0

Note: The regional average SO₂ concentration indicator is based on the annual average of the hourly concentrations recorded at 4 monitoring stations in Atlantic Canada, 9 in southern Quebec, 10 in southern Ontario, 32 in the Prairies and northern Ontario region, and 23 in British Columbia.

Table E.15. Percentiles for the national peak sulphur dioxide concentrations indicator
Year	10th percentile (parts per billion)	90th percentile (parts per billion)
2005	5.0	113.0
2006	5.0	136.0
2007	5.0	81.0
2008	6.0	81.0
2009	5.0	89.0
2010	4.0	82.0
2011	5.0	67.0
2012	5.0	67.0
2013	4.0	71.0
2014	4.0	70.3
2015	3.0	65.7
2016	2.0	55.0
2017	3.0	64.0
2018	2.5	58.0
2019	2.7	52.2

Note: The national peak SO₂ concentration indicator is based on the annual 99th percentile of the daily maximum 1-hour average concentrations recorded at 81 monitoring stations across Canada.

Table E.16. Percentiles for the regional peak sulphur dioxide concentrations indicator
Year	Atlantic Canada 10th percentile (parts per billion)	Atlantic Canada 90th percentile (parts per billion)	Southern Quebec 10th percentile (parts per billion)	Southern Quebec 90th percentile (parts per billion)	Southern Ontario 10th percentile (parts per billion)	Southern Ontario 90th percentile (parts per billion)	Prairies and northern Ontario 10th percentile (parts per billion)	Prairies and northern Ontario 90th percentile (parts per billion)	British Columbia 10th percentile (parts per billion)	British Columbia 90th percentile (parts per billion)
2005	23.0	151.0	21.0	216.0	28.0	186.0	6.0	90.0	5.0	84.0
2006	10.0	141.0	10.0	178.0	17.0	197.0	6.0	82.0	4.0	80.0
2007	9.0	113.0	9.0	188.0	14.0	152.0	4.0	75.0	5.0	57.0
2008	9.0	86.0	7.0	163.0	11.0	159.0	5.0	64.0	7.0	60.0
2009	11.0	160.0	5.0	133.0	12.0	120.0	5.0	61.0	6.0	86.0
2010	3.4	119.1	4.0	218.0	4.0	103.0	4.0	66.0	3.8	59.9
2011	6.7	38.8	7.0	118.0	4.0	87.0	5.0	39.5	3.8	60.1
2012	4.4	52.1	6.0	121.0	5.0	105.0	3.0	56.0	5.0	65.4
2013	6.5	60.9	3.1	95.6	5.1	149.6	4.0	48.0	4.1	65.6
2014	6.7	70.3	4.4	111.8	6.2	168.1	4.0	36.0	4.5	51.5
2015	5.8	46.9	5.2	100.6	6.1	133.0	3.0	36.0	4.1	50.8
2016	6.0	54.1	5.2	102.0	5.4	165.6	2.0	55.0	3.1	32.2
2017	5.0	47.4	4.0	87.8	2.6	90.6	3.0	59.0	3.8	38.9
2018	5.8	67.0	2.4	93.0	2.3	106.3	2.5	38.0	3.0	56.1
2019	5.1	44.1	5.7	88.8	1.5	82.4	2.0	27.0	3.0	31.2

Note: The regional peak SO₂ concentration indicator is based on the annual 99th percentile of the daily maximum 1-hour average concentrations recorded at 5 monitoring stations in Atlantic Canada, 9 in southern Quebec, 10 in southern Ontario, 32 in the Prairies and northern Ontario region, and 23 in British Columbia.

Table E.17. Percentiles for the national average volatile organic compound concentrations indicator
Year	10th percentile (parts per billion carbon)	90th percentile (parts per billion carbon)
2005	27.1	164.4
2006	27.2	281.9
2007	26.1	173.8
2008	26.8	309.5
2009	28.0	310.1
2010	21.1	231.0
2011	27.2	201.3
2012	20.6	266.3
2013	22.2	258.0
2014	21.9	241.0
2015	24.8	222.7
2016	20.1	176.1
2017	25.8	249.3
2018	18.8	102.1
2019	19.9	231.4

Note: The national average VOC concentration indicator is based on the annual average of the daily time-integrated concentrations (24 hour for urban stations and 4 hour for rural stations) recorded at 30 monitoring stations across Canada.

Table E.18. Percentiles for the regional average volatile organic compound concentrations indicator
Year	Atlantic Canada 10th percentile (parts per billion carbon)	Atlantic Canada 90th percentile (parts per billion carbon)	Southern Quebec 10th percentile (parts per billion carbon)	Southern Quebec 90th percentile (parts per billion carbon)	Southern Ontario 10th percentile (parts per billion carbon)	Southern Ontario 90th percentile (parts per billion carbon)	Prairies and northern Ontario 10th percentile (parts per billion carbon)	Prairies and northern Ontario 90th percentile (parts per billion carbon)	British Columbia 10th percentile (parts per billion carbon)	British Columbia 90th percentile (parts per billion carbon)
2005	79.8	278.0	38.3	147.9	23.7	107.3	56.8	357.4	15.9	164.4
2006	77.9	281.9	46.3	137.3	19.9	89.6	55.9	373.6	9.8	471.0
2007	45.3	104.1	37.1	157.3	19.2	98.0	53.2	308.6	10.3	654.6
2008	48.3	309.5	38.5	103.7	18.5	56.6	42.2	467.4	13.0	492.7
2009	46.8	314.9	32.8	94.4	18.9	54.5	42.0	310.1	12.9	736.1
2010	40.3	231.0	37.9	98.8	18.0	63.3	39.7	271.3	10.1	689.3
2011	38.0	201.3	31.6	77.5	17.4	27.2	42.5	260.4	9.4	405.3
2012	38.7	294.3	29.9	69.6	18.8	77.0	39.5	266.3	11.5	288.8
2013	41.1	258.0	27.6	73.6	19.4	68.3	37.3	290.5	13.1	361.3
2014	51.6	241.0	27.7	77.7	20.2	70.4	44.0	292.2	14.7	386.6
2015	47.4	222.7	28.2	89.4	20.2	96.8	38.1	268.9	13.7	353.6
2016	37.1	176.1	26.9	67.8	19.8	52.5	31.9	256.6	11.2	262.1
2017	34.4	315.0	25.8	68.9	16.8	47.3	30.0	249.3	32.2	371.4
2018	31.5	102.0	21.3	60.7	15.6	44.3	36.7	254.2	11.5	277.8
2019	36.4	231.4	23.4	53.7	15.5	40.6	32.1	275.6	10.7	301.8

Note: The regional average VOC concentration indicator is based on the annual average of the daily time-integrated concentrations (24 hour for urban stations and 4 hour for rural stations) recorded at 4 monitoring stations in Atlantic Canada, 5 in southern Quebec, 9 in southern Ontario, 5 in the Prairies and northern Ontario region, and 7 in British Columbia.

Annex F

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

Table F.1. Legend for tables in Annex F
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 F.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	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15
Z-test	1.58	1.58	-2.87	-0.40	1.88	2.57
Significant	No	No	Yes^[B]	No	No	Yes^[C]
Q	0.07	0.08	-0.14	-0.01	0.20	0.20
Qmin95	-0.02	0.04	-0.18	-0.19	-0.01	0.07
Qmax95	0.14	0.17	-0.03	0.10	0.33	0.39
B	5.94	4.77	8.32	6.63	4.63	4.37
Bmin95	6.52	5.56	8.70	8.52	6.74	5.23
Bmax95	5.58	4.28	7.47	5.48	3.83	3.46
Median change	1.17%	1.59%	-1.65%	-0.19%	4.30%	4.52%

Table F.3. Mann-Kendall and Sen's tests results for the national and regional peak (98th percentile) 24-hour fine particulate matter indicators
Statistic	National	Atlantic Canada	Southern Quebec	Southern Ontario	Prairies and northern Ontario	British Columbia
First year	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
N	15	15	15	15	15	15	15
Z-test	0.49	-2.18	-3.56	-2.38	3.17	1.98	1.88
Significant	No	Yes^[C]	Yes^[A]	Yes^[C]	Yes^[B]	Yes^[C]	No
Q	0.16	-0.26	-0.60	-0.58	1.36	0.48	0.57
Qmin95	-0.31	-0.42	-0.98	-1.10	0.59	-0.01	-0.03
Qmax95	0.82	-0.03	-0.36	-0.13	2.30	2.01	1.22
B	18.75	15.27	24.40	23.86	11.78	14.51	10.92
Bmin95	21.43	16.63	28.37	28.57	14.78	16.03	15.95
Bmax95	13.95	14.32	22.97	20.80	6.38	8.40	9.35
Median change	0.88%	-1.70%	-2.46%	-2.43%	11.51%	3.34%	5.22%

Table F.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	Northern territories
First year	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15	15
Z-test	1.58	1.39	2.18	-1.39	1.39	0.99	1.09
Significant	No	No	Yes^[C]	No	No	No	No
Q	0.06	0.07	0.19	-0.14	0.12	0.07	0.06
Qmin95	-0.02	-0.06	0.01	-0.24	-0.04	-0.10	-0.12
Qmax95	0.11	0.17	0.30	0.02	0.27	0.26	0.30
B	32.71	32.67	31.45	38.05	32.22	27.16	30.06
Bmin95	33.22	33.23	33.23	39.11	33.47	28.31	31.12
Bmax95	32.27	31.87	30.88	36.42	31.41	25.59	27.37
Median change	0.18%	0.21%	0.61%	-0.37%	0.36%	0.25%	0.18%

Table F.5. Mann-Kendall and Sen's tests results for the national and regional peak (4th highest) 8-hour ground level ozone indicators
Statistic	National	Atlantic Canada	Southern Quebec	Southern Ontario	Prairies and northern Ontario	British Columbia	Northern territories
First year	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15	15
Z-test	-2.77	-2.08	-2.38	-3.07	1.19	-0.59	-1.39
Significant	Yes^[B]	Yes^[C]	Yes^[C]	Yes^[B]	No	No	No
Q	-0.51	-0.40	-0.62	-1.01	0.20	-0.15	-0.25
Qmin95	-0.85	-0.79	-1.20	-1.68	-0.20	-0.52	-0.53
Qmax95	-0.17	-0.09	-0.20	-0.53	0.43	0.34	0.04
B	61.83	54.54	63.58	75.40	56.02	50.52	48.21
Bmin95	63.54	56.96	67.06	81.65	57.86	53.18	51.06
Bmax95	60.14	52.39	59.60	72.98	55.12	48.06	46.26
Median change	-0.82%	-0.74%	-0.98%	-1.34%	0.36%	-0.30%	-0.51%

Table F.5. 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	Northern territories
First year	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15	15
Z-test	-4.85	-2.28	-4.35	-4.75	-4.06	-3.86	-1.39
Significant	Yes^[A]	Yes^[C]	Yes^[A]	Yes^[A]	Yes^[A]	Yes^[A]	No
Q	-0.28	-0.10	-0.42	-0.40	-0.18	-0.26	-0.25
Qmin95	-0.36	-0.16	-0.50	-0.53	-0.23	-0.35	-0.53
Qmax95	-0.22	-0.02	-0.31	-0.28	-0.12	-0.14	0.04
B	10.65	4.58	13.07	12.43	8.71	12.19	48.21
Bmin95	11.12	4.99	13.44	13.58	8.95	12.64	51.06
Bmax95	10.21	4.05	12.39	11.34	8.25	10.86	46.26
Median change	-2.67%	-2.11%	-3.23%	-3.18%	-2.03%	-2.11%	-0.51%

Table F.7. Mann-Kendall and Sen's tests results for the national and regional peak (98th percentile) 1-hour nitrogen dioxide indicators
Statistic	National	Atlantic Canada	Southern Quebec	Southern Ontario	Prairies and northern Ontario	British Columbia	Northern territories
First year	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15	15
Z-test	-4.06	-3.07	-2.77	-3.56	-3.37	-2.28	-1.39
Significant	Yes^[A]	Yes^[B]	Yes^[B]	Yes^[A]	Yes^[A]	Yes^[C]	No
Q	-0.67	-0.72	-0.71	-1.02	-0.53	-0.46	-0.25
Qmin95	-0.89	-0.98	-1.26	-1.55	-0.71	-0.77	-0.53
Qmax95	-0.47	-0.38	-0.19	-0.56	-0.24	-0.06	0.04
B	44.65	38.62	51.41	50.52	43.25	39.80	48.21
Bmin95	45.97	40.00	55.84	53.72	43.86	42.01	51.06
Bmax95	43.58	35.70	45.33	48.51	41.49	36.37	46.26
Median change	-1.50%	-1.87%	-1.38%	-2.02%	-1.23%	-1.16%	-0.51%

Table F.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	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15	15
Z-test	-5.15	-2.38	-4.35	-4.06	-4.16	-3.86	-1.39
Significant	Yes^[A]	Yes^[C]	Yes^[A]	Yes^[A]	Yes^[A]	Yes^[A]	No
Q	-0.09	-0.08	-0.14	-0.19	-0.05	-0.09	-0.25
Qmin95	-0.10	-0.16	-0.20	-0.23	-0.07	-0.11	-0.53
Qmax95	-0.08	-0.03	-0.08	-0.15	-0.03	-0.07	0.04
B	1.91	1.63	2.79	3.85	1.15	2.05	48.21
Bmin95	1.99	2.46	3.28	3.96	1.22	2.18	51.06
Bmax95	1.75	1.23	2.30	3.37	0.82	1.77	46.26
Median change	-4.93%	-4.62%	-4.85%	-5.05%	-4.76%	-4.62%	-0.51%

Table F.9. Mann-Kendall and Sen's tests results for the national and regional 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	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15	15
Z-test	-4.75	-3.37	-4.16	-3.66	-2.97	-3.66	-1.39
Significant	Yes^[A]	Yes^[A]	Yes^[A]	Yes^[A]	Yes^[B]	Yes^[A]	No
Q	-2.39	-3.69	-2.57	-2.76	-2.64	-1.76	-0.25
Qmin95	-2.95	-5.18	-3.76	-3.69	-4.05	-2.35	-0.53
Qmax95	-1.86	-1.49	-1.84	-1.82	-1.05	-1.04	0.04
B	51.76	65.22	62.59	70.84	51.54	42.56	48.21
Bmin95	54.07	77.71	73.88	80.57	57.29	46.50	51.06
Bmax95	46.93	47.07	55.99	62.92	34.13	37.10	46.26
Median change	-4.61%	-5.66%	-4.11%	-3.90%	-5.12%	-4.13%	-0.51%

Table F.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	Northern territories
First year	2005	2005	2005	2005	2005	2005	2005
Last year	2019	2019	2019	2019	2019	2019	2019
n	15	15	15	15	15	15	15
Z-test	-3.66	-2.18	-4.26	-3.17	-3.86	-2.28	-1.39
Significant	Yes^[A]	Yes^[C]	Yes^[A]	Yes^[B]	Yes^[A]	Yes^[C]	No
Q	-3.20	-3.50	-3.31	-1.59	-2.85	-3.54	-0.25
Qmin95	-3.98	-6.89	-4.64	-2.30	-4.19	-6.85	-0.53
Qmax95	-2.28	-0.71	-2.25	-0.64	-1.56	-1.21	0.04
B	104.57	134.50	79.83	49.67	129.95	137.42	48.21
Bmin95	109.23	155.18	89.02	55.36	139.68	165.29	51.06
Bmax95	97.41	105.73	69.40	41.95	120.16	114.59	46.26
Median change	-3.06%	-2.60%	-4.15%	-3.19%	-2.20%	-2.58%	-0.51%

Annex G

Annex G. Monitoring stations used for the urban area indicators

Table G.1. List of monitoring stations used in the calculation of the urban area indicators
Urban area (population centre)	NAPS ID	Average fine particulate matter	Peak fine particulate matterr	Average ozone	Peak ozone	Average nitrogen dioxide	Peak nitrogen dioxide
St. John's	10102	X	X	X	X	X	X
St. John's	10401	X	X	X	X	X	X
Charlottetown	20104	X	X	X	X	X	X
Halifax	30113	X	X	X	X	X	X
Halifax	30118	n/a	n/a	X	X	X	X
Halifax	30120	X	X	X	X	X	X
Fredericton	40103	X	X	X	X	X	X
Fredericton	40104	X	X	X	X	X	X
Quebec	50308	X	X	X	X	X	X
Quebec	50310	X	X	X	X	X	X
Quebec	50311	X	X	X	X	X	X
Quebec	55701	n/a	n/a	X	X	n/a	n/a
Quebec	55702	X	X	X	X	X	X
Montreal	50103	X	X	X	X	X	X
Montreal	50104	n/a	n/a	X	X	X	X
Montreal	50105	X	X	n/a	n/a	n/a	n/a
Montreal	50109	X	X	X	X	X	X
Montreal	50110	X	X	X	X	X	X
Montreal	50113	X	X	X	X	X	X
Montreal	50115	n/a	n/a	X	X	X	X
Montreal	50116	n/a	n/a	X	X	X	X
Montreal	50119	X	X	X	X	X	X
Montreal	50121	X	X	X	X	X	X
Montreal	50122	X	X	X	X	X	X
Montreal	50126	X	X	X	X	X	X
Montreal	50128	X	X	X	X	X	X
Montreal	50129	X	X	X	X	X	X
Montreal	50131	X	X	n/a	n/a	n/a	n/a
Montreal	50133	X	X	n/a	n/a	X	X
Montreal	50134	X	X	X	X	X	X
Montreal	50135	X	X	X	X	X	X
Montreal	50136	X	X	X	X	X	X
Montreal	50137	X	X	X	X	X	X
Montreal	50138	X	X	X	X	X	X
Gatineau	50204	X	X	X	X	X	X
Ottawa	60104	X	X	X	X	X	X
Ottawa	60106	X	X	X	X	X	X
Oshawa	61701	n/a	n/a	X	X	n/a	X
Oshawa	61702	X	X	X	X	X	X
Oshawa	61703	X	X	X	X	X	X
Toronto	60410	X	X	X	X	X	X
Toronto	60421	X	X	X	X	X	X
Toronto	60428	X	X	X	X	X	X
Toronto	60429	X	X	X	X	X	X
Toronto	60430	X	X	X	X	X	X
Toronto	60433	X	X	X	X	X	X
Toronto	60434	X	X	X	X	X	X
Toronto	60435	X	X	X	X	X	X
Toronto	60438	X	X	X	X	X	X
Toronto	60439	X	X	X	X	X	X
Toronto	60440	X	X	X	X	X	X
Toronto	60450	X	X	X	X	X	X
Toronto	61603	X	X	X	X	X	X
Toronto	65101	X	X	X	X	X	X
Barrie	65001	X	X	X	X	X	X
Hamilton	60512	X	X	X	X	X	X
Hamilton	60513	X	X	X	X	X	X
Hamilton	60515	X	X	X	X	X	X
Hamilton	60521	X	X	X	X	X	X
Hamilton	63001	X	X	X	X	X	X
St. Catharines – Niagara Falls	61302	X	X	X	X	X	X
Kitchener	61502	X	X	X	X	X	X
London	60903	X	X	X	X	X	X
London	60904	X	X	X	X	X	X
Windsor	60204	X	X	X	X	X	X
Windsor	60211	X	X	X	X	X	X
Winnipeg	70118	X	X	X	X	X	X
Winnipeg	70119	X	X	X	X	X	X
Regina	80110	X	X	X	X	X	X
Regina	80111	X	X	X	X	X	X
Saskatoon	80211	X	X	X	X	X	X
Calgary	90222	X	X	X	X	X	X
Calgary	90227	X	X	X	X	X	X
Calgary	90228	X	X	X	X	X	X
Calgary	90229	X	X	X	X	X	X
Calgary	90230	X	X	X	X	X	X
Calgary	90235	X	X	X	X	X	X
Edmonton	90120	X	X	X	X	X	X
Edmonton	90121	X	X	X	X	X	X
Edmonton	90130	X	X	X	X	X	X
Edmonton	90132	X	X	n/a	n/a	n/a	n/a
Edmonton	90133	X	X	X	X	X	X
Edmonton	90134	X	X	X	X	X	X
Edmonton	90135	X	X	X	X	X	X
Edmonton	90136	X	X	X	X	X	X
Vancouver	100103	X	X	X	X	X	X
Vancouver	100110	X	X	X	X	X	X
Vancouver	100111	X	X	X	X	X	X
Vancouver	100112	n/a	n/a	X	X	X	X
Vancouver	100119	X	X	X	X	X	X
Vancouver	100121	X	X	X	X	X	X
Vancouver	100125	X	X	X	X	X	X
Vancouver	100126	n/a	n/a	X	X	X	X
Vancouver	100127	X	X	X	X	X	X
Vancouver	100128	X	X	X	X	X	X
Vancouver	100132	X	X	X	X	X	X
Vancouver	100134	X	X	X	X	X	X
Vancouver	100135	n/a	n/a	X	X	X	X
Vancouver	100138	X	X	n/a	n/a	n/a	n/a
Vancouver	100140	X	X	X	X	X	X
Vancouver	100141	X	X	X	X	X	X
Vancouver	101202	X	X	X	X	X	X
Vancouver	101301	X	X	X	X	X	X
Vancouver	101501	n/a	n/a	X	X	X	X
Victoria	100304	X	X	X	X	X	X
Victoria	100308	X	X	X	X	X	X
Whitehorse	119003	X	X	X	X	X	X
Whitehorse	119004	X^[A]	X	X	X	X^[A]	X^[A]
Yellowknife	129003	X	X	X	X	X	X

Note: X = station was used in the calculation of the air quality indicator at the urban area level. n/a = not applicable. ^[A] Station only reported concentrations to 2018. For the indicator, the 2018 concentration value was used for 2019.

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Date modified:: 2023-01-26

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