SmogRank / Cleaner or dirtier / Canada

Canada: cleaner or dirtier, 2024

In Canada, 97 cities have enough days in both years to compare 2024 with the same days of 2023: 0 got dirtier and 97 cleaner.

The 97 cities that got cleaner, biggest fall first

#	City	2023	2024	Change
1	Grande PrairieAlberta, Canada	84	56	−14.9 µg/m³−56%
2	Fort St. JohnBritish Columbia, Canada	71	45	−11.7 µg/m³−59%
3	EdmontonAlberta, Canada	76	59	−9.0 µg/m³−40%
4	Fort McMurrayAlberta, Canada	79	62	−8.8 µg/m³−37%
5	Prince AlbertSaskatchewan, Canada	73	57	−8.4 µg/m³−40%
6	Rouyn-NorandaQuebec, Canada	57	25	−8.0 µg/m³−64%
7	KamloopsBritish Columbia, Canada	60	35	−7.7 µg/m³−55%
8	QuesnelBritish Columbia, Canada	63	45	−7.5 µg/m³−48%
9	ReginaSaskatchewan, Canada	66	52	−7.5 µg/m³−44%
10	Fort SaskatchewanAlberta, Canada	71	57	−7.1 µg/m³−36%
11	SaskatoonSaskatchewan, Canada	69	56	−6.9 µg/m³−37%
12	EdsonAlberta, Canada	62	45	−6.8 µg/m³−46%
13	Grand CentreAlberta, Canada	67	56	−6.0 µg/m³−34%
14	Prince GeorgeBritish Columbia, Canada	61	49	−5.9 µg/m³−40%
15	ChathamOntario, Canada	55	34	−5.1 µg/m³−45%
16	VernonBritish Columbia, Canada	56	38	−5.1 µg/m³−42%
17	Red DeerAlberta, Canada	61	52	−5.0 µg/m³−34%
18	KelownaBritish Columbia, Canada	52	28	−4.9 µg/m³−49%
19	Parry SoundOntario, Canada	53	29	−4.9 µg/m³−48%
20	St. AlbertAlberta, Canada	61	52	−4.8 µg/m³−34%
21	North BayOntario, Canada	51	25	−4.6 µg/m³−51%
22	OttawaOntario, Canada	54	33	−4.6 µg/m³−44%
23	Williams LakeBritish Columbia, Canada	41	16	−4.5 µg/m³−62%
24	LondonOntario, Canada	55	39	−4.5 µg/m³−39%
25	St. ThomasOntario, Canada	54	37	−4.2 µg/m³−39%
26	WindsorOntario, Canada	57	46	−4.1 µg/m³−33%
27	BellevilleOntario, Canada	51	28	−4.1 µg/m³−45%
28	SarniaOntario, Canada	54	36	−4.0 µg/m³−38%
29	Greater SudburyOntario, Canada	51	29	−4.0 µg/m³−43%
30	HamiltonOntario, Canada	55	41	−3.8 µg/m³−34%
31	KingstonOntario, Canada	49	29	−3.6 µg/m³−41%
32	St. CatharinesOntario, Canada	52	34	−3.6 µg/m³−37%
33	KitchenerOntario, Canada	54	38	−3.6 µg/m³−34%
34	Drayton ValleyAlberta, Canada	60	53	−3.6 µg/m³−26%
35	CastlegarBritish Columbia, Canada	54	41	−3.5 µg/m³−32%
36	EstevanSaskatchewan, Canada	61	54	−3.5 µg/m³−24%
37	PeterboroughOntario, Canada	50	31	−3.4 µg/m³−38%
38	BrantfordOntario, Canada	54	41	−3.4 µg/m³−31%
39	AirdrieAlberta, Canada	54	42	−3.4 µg/m³−31%
40	L'Ancienne-LoretteQuebec, Canada	53	38	−3.4 µg/m³−33%
41	BarrieOntario, Canada	53	39	−3.3 µg/m³−32%
42	Sherwood ParkAlberta, Canada	58	52	−3.3 µg/m³−26%
43	SaguenayQuebec, Canada	54	41	−3.3 µg/m³−31%
44	Labrador CityNewfoundland and Labrador, Canada	43	26	−3.2 µg/m³−41%
45	TorontoOntario, Canada	53	40	−3.1 µg/m³−30%
46	CranbrookBritish Columbia, Canada	53	41	−3.1 µg/m³−30%
47	GranbyQuebec, Canada	51	34	−3.0 µg/m³−33%
48	HopeBritish Columbia, Canada	41	25	−2.9 µg/m³−39%
49	DrummondvilleQuebec, Canada	49	34	−2.7 µg/m³−31%
50	Saint-Jean-sur-RichelieuQuebec, Canada	44	29	−2.7 µg/m³−34%
51	CalgaryAlberta, Canada	59	54	−2.7 µg/m³−20%
52	Sault Ste. MarieOntario, Canada	40	26	−2.5 µg/m³−35%
53	SmithersBritish Columbia, Canada	49	36	−2.5 µg/m³−28%
54	BrossardQuebec, Canada	49	36	−2.4 µg/m³−27%
55	ShawiniganQuebec, Canada	48	35	−2.3 µg/m³−27%
56	MontréalQuebec, Canada	51	39	−2.1 µg/m³−23%
57	QuébecQuebec, Canada	46	35	−2.0 µg/m³−24%
58	AgassizBritish Columbia, Canada	36	24	−2.0 µg/m³−31%
59	KitimatBritish Columbia, Canada	29	18	−1.9 µg/m³−37%
60	MonctonNew Brunswick, Canada	33	23	−1.9 µg/m³−32%
61	Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada	46	36	−1.8 µg/m³−22%
62	ChilliwackBritish Columbia, Canada	36	26	−1.8 µg/m³−28%
63	SquamishBritish Columbia, Canada	36	27	−1.6 µg/m³−25%
64	FrederictonNew Brunswick, Canada	32	24	−1.5 µg/m³−26%
65	VictoriaBritish Columbia, Canada	35	27	−1.5 µg/m³−24%
66	HarewoodBritish Columbia, Canada	37	29	−1.5 µg/m³−22%
67	LethbridgeAlberta, Canada	45	37	−1.5 µg/m³−19%
68	GibsonsBritish Columbia, Canada	34	27	−1.4 µg/m³−23%
69	West VancouverBritish Columbia, Canada	30	23	−1.3 µg/m³−24%
70	WhistlerBritish Columbia, Canada	30	23	−1.2 µg/m³−22%
71	AbbotsfordBritish Columbia, Canada	33	26	−1.2 µg/m³−20%
72	Port AlberniBritish Columbia, Canada	34	28	−1.2 µg/m³−19%
73	DorvalQuebec, Canada	43	36	−1.2 µg/m³−16%
74	LangleyBritish Columbia, Canada	31	24	−1.2 µg/m³−21%
75	Strawberry HillBritish Columbia, Canada	32	26	−1.1 µg/m³−19%
76	Medicine HatAlberta, Canada	46	40	−1.1 µg/m³−13%
77	BathurstNew Brunswick, Canada	29	23	−1.1 µg/m³−21%
78	CourtenayBritish Columbia, Canada	29	23	−1.1 µg/m³−21%
79	CoquitlamBritish Columbia, Canada	29	23	−1.1 µg/m³−21%
80	TerraceBritish Columbia, Canada	33	27	−1.1 µg/m³−18%
81	Saint John EastNew Brunswick, Canada	32	26	−1.0 µg/m³−18%
82	Saint JohnNew Brunswick, Canada	32	26	−1.0 µg/m³−18%
83	DuncanBritish Columbia, Canada	35	29	−1.0 µg/m³−16%
84	NanaimoBritish Columbia, Canada	24	19	−0.9 µg/m³−20%
85	North VancouverBritish Columbia, Canada	27	22	−0.9 µg/m³−18%
86	MiramichiNew Brunswick, Canada	28	23	−0.9 µg/m³−18%
87	BécancourQuebec, Canada	45	40	−0.9 µg/m³−11%
88	DeltaBritish Columbia, Canada	24	19	−0.8 µg/m³−19%
89	EdmundstonNew Brunswick, Canada	38	33	−0.8 µg/m³−12%
90	North CowichanBritish Columbia, Canada	23	19	−0.7 µg/m³−17%
91	VancouverBritish Columbia, Canada	29	26	−0.6 µg/m³−12%
92	BurnabyBritish Columbia, Canada	29	26	−0.6 µg/m³−12%
93	LangfordBritish Columbia, Canada	33	29	−0.6 µg/m³−10%
94	Campbell RiverBritish Columbia, Canada	19	16	−0.6 µg/m³−17%
95	CharlottetownPrince Edward Island, Canada	27	23	−0.6 µg/m³−12%
96	Port CoquitlamBritish Columbia, Canada	26	24	−0.4 µg/m³−9%
97	RichmondBritish Columbia, Canada	27	25	−0.4 µg/m³−8%

Means in US AQI over the days a city was measured in both years, the same calendar days each year; a city needs 55% of the days paired, and at least 30. The change is in µg/m³ and per cent. How we compare.

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Updated 2026-10-07 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.