Country Background

Gatineau Hull Area, Ottawa, Ontario, Canada Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

September Air Quality Analysis

Gatineau Hull Area, Ottawa, Ontario, Canada

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
29th Sep 2023
64AQI
Lowest AQI recorded on
3rd Sep 2021
9AQI


Same Day Analysis (19th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 17 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 20th Sep - 21st Sep 2025

Gatineau Hull Area, Ottawa, Ontario, Canada

AQI
Day
Night
.

6 AM20th Sep 2025

7 PM

5 AM21st Sep 2025

Day time
Avg. Highest Time
10AM20th Sep

16AQI

Avg. Lowest Time
7AM20th Sep

14AQI

Night time
Avg. Highest Time
1AM21st Sep

20AQI

Avg. Lowest Time
9PM20th Sep

16AQI

In the last 24 hours,

Gatineau Hull Area's AQI reached its highest point of 20 at 1 AM during the Night, while the lowest point, 14, was recorded at 7 AM during the Day between 20th Sep and 21st Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025

Gatineau Hull Area, Ottawa, Ontario, Canada

AugSep
22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st
Day
Night
22nd Aug 2025246 AMAQI
22nd Aug 2025247 AMAQI
22nd Aug 2025248 AMAQI
22nd Aug 2025309 AMAQI
22nd Aug 20253310 AMAQI
22nd Aug 20253411 AMAQI
22nd Aug 20253412 PMAQI
22nd Aug 2025331 PMAQI
22nd Aug 2025322 PMAQI
22nd Aug 2025313 PMAQI
22nd Aug 2025304 PMAQI
22nd Aug 2025295 PMAQI
22nd Aug 2025296 PMAQI
22nd Aug 2025287 PMAQI
22nd Aug 2025288 PMAQI
22nd Aug 2025309 PMAQI
22nd Aug 20252810 PMAQI
22nd Aug 20252811 PMAQI
23rd Aug 20252812 AMAQI
23rd Aug 2025311 AMAQI
23rd Aug 2025322 AMAQI
23rd Aug 2025323 AMAQI
23rd Aug 2025304 AMAQI
23rd Aug 2025295 AMAQI

23°C14/31°C

23rd Aug 2025296 AMAQI
23rd Aug 2025287 AMAQI
23rd Aug 2025288 AMAQI
23rd Aug 2025279 AMAQI
23rd Aug 20252710 AMAQI
23rd Aug 20252911 AMAQI
23rd Aug 20252612 PMAQI
23rd Aug 2025261 PMAQI
23rd Aug 2025262 PMAQI
23rd Aug 2025263 PMAQI
23rd Aug 2025274 PMAQI
23rd Aug 2025265 PMAQI
23rd Aug 2025266 PMAQI
23rd Aug 2025267 PMAQI
23rd Aug 2025248 PMAQI
23rd Aug 2025269 PMAQI
23rd Aug 20252610 PMAQI
23rd Aug 20252611 PMAQI
24th Aug 20252712 AMAQI
24th Aug 2025281 AMAQI
24th Aug 2025272 AMAQI
24th Aug 2025263 AMAQI
24th Aug 2025284 AMAQI
24th Aug 2025275 AMAQI

24°C17/30°C

24th Aug 2025276 AMAQI
24th Aug 2025267 AMAQI
24th Aug 2025288 AMAQI
24th Aug 2025289 AMAQI
24th Aug 20253010 AMAQI
24th Aug 20253111 AMAQI
24th Aug 20253012 PMAQI
24th Aug 2025281 PMAQI
24th Aug 2025252 PMAQI
24th Aug 2025263 PMAQI
24th Aug 2025244 PMAQI
24th Aug 2025245 PMAQI
24th Aug 2025236 PMAQI
24th Aug 2025227 PMAQI
24th Aug 2025238 PMAQI
24th Aug 2025279 PMAQI
24th Aug 20252710 PMAQI
24th Aug 20252811 PMAQI
25th Aug 20252712 AMAQI
25th Aug 2025261 AMAQI
25th Aug 2025262 AMAQI
25th Aug 2025253 AMAQI
25th Aug 2025234 AMAQI
25th Aug 2025245 AMAQI

23°C19/28°C

25th Aug 2025246 AMAQI
25th Aug 2025237 AMAQI
25th Aug 2025218 AMAQI
25th Aug 2025219 AMAQI
25th Aug 20252210 AMAQI
25th Aug 20252011 AMAQI
25th Aug 20251912 PMAQI
25th Aug 2025181 PMAQI
25th Aug 2025182 PMAQI
25th Aug 2025163 PMAQI
25th Aug 2025144 PMAQI
25th Aug 2025145 PMAQI
25th Aug 2025136 PMAQI
25th Aug 2025127 PMAQI
25th Aug 2025138 PMAQI
25th Aug 2025219 PMAQI
25th Aug 20251810 PMAQI
25th Aug 20251411 PMAQI
26th Aug 20251612 AMAQI
26th Aug 2025151 AMAQI
26th Aug 2025212 AMAQI
26th Aug 2025133 AMAQI
26th Aug 2025144 AMAQI
26th Aug 2025155 AMAQI

20°C16/24°C

26th Aug 2025126 AMAQI
26th Aug 2025127 AMAQI
26th Aug 2025128 AMAQI
26th Aug 2025139 AMAQI
26th Aug 20251410 AMAQI
26th Aug 20251511 AMAQI
26th Aug 20251512 PMAQI
26th Aug 2025151 PMAQI
26th Aug 2025142 PMAQI
26th Aug 2025143 PMAQI
26th Aug 2025144 PMAQI
26th Aug 2025145 PMAQI
26th Aug 2025146 PMAQI
26th Aug 2025137 PMAQI
26th Aug 2025138 PMAQI
26th Aug 2025169 PMAQI
26th Aug 20251610 PMAQI
26th Aug 20251611 PMAQI
27th Aug 20251612 AMAQI
27th Aug 2025161 AMAQI
27th Aug 2025162 AMAQI
27th Aug 2025163 AMAQI
27th Aug 2025164 AMAQI
27th Aug 2025165 AMAQI

17°C14/21°C

27th Aug 2025176 AMAQI
27th Aug 2025177 AMAQI
27th Aug 2025178 AMAQI
27th Aug 2025209 AMAQI
27th Aug 20252610 AMAQI
27th Aug 20252611 AMAQI
27th Aug 20252612 PMAQI
27th Aug 2025231 PMAQI
27th Aug 2025242 PMAQI
27th Aug 2025233 PMAQI
27th Aug 2025204 PMAQI
27th Aug 2025205 PMAQI
27th Aug 2025186 PMAQI
27th Aug 2025197 PMAQI
27th Aug 2025198 PMAQI
27th Aug 2025189 PMAQI
27th Aug 20252010 PMAQI
27th Aug 20252311 PMAQI
28th Aug 20252412 AMAQI
28th Aug 2025241 AMAQI
28th Aug 2025232 AMAQI
28th Aug 2025223 AMAQI
28th Aug 2025224 AMAQI
28th Aug 2025205 AMAQI

16°C9/22°C

28th Aug 2025196 AMAQI
28th Aug 2025197 AMAQI
28th Aug 2025208 AMAQI
28th Aug 2025229 AMAQI
28th Aug 20252410 AMAQI
28th Aug 20252811 AMAQI
28th Aug 20252512 PMAQI
28th Aug 2025241 PMAQI
28th Aug 2025262 PMAQI
28th Aug 2025263 PMAQI
28th Aug 2025264 PMAQI
28th Aug 2025265 PMAQI
28th Aug 2025256 PMAQI
28th Aug 2025257 PMAQI
28th Aug 2025258 PMAQI
28th Aug 2025239 PMAQI
28th Aug 20252310 PMAQI
28th Aug 20252411 PMAQI
29th Aug 20252312 AMAQI
29th Aug 2025211 AMAQI
29th Aug 2025202 AMAQI
29th Aug 2025193 AMAQI
29th Aug 2025174 AMAQI
29th Aug 2025185 AMAQI

16°C12/22°C

29th Aug 2025166 AMAQI
29th Aug 2025177 AMAQI
29th Aug 2025178 AMAQI
29th Aug 2025189 AMAQI
29th Aug 20251810 AMAQI
29th Aug 20251811 AMAQI
29th Aug 20251712 PMAQI
29th Aug 2025161 PMAQI
29th Aug 2025162 PMAQI
29th Aug 2025163 PMAQI
29th Aug 2025164 PMAQI
29th Aug 2025165 PMAQI
29th Aug 2025146 PMAQI
29th Aug 2025157 PMAQI
29th Aug 2025158 PMAQI
29th Aug 2025189 PMAQI
29th Aug 20251710 PMAQI
29th Aug 20251611 PMAQI
30th Aug 20251712 AMAQI
30th Aug 2025171 AMAQI
30th Aug 2025172 AMAQI
30th Aug 2025173 AMAQI
30th Aug 2025174 AMAQI
30th Aug 2025165 AMAQI

14°C11/18°C

30th Aug 2025166 AMAQI
30th Aug 2025187 AMAQI
30th Aug 2025188 AMAQI
30th Aug 2025189 AMAQI
30th Aug 20251810 AMAQI
30th Aug 20251811 AMAQI
30th Aug 20251712 PMAQI
30th Aug 2025171 PMAQI
30th Aug 2025172 PMAQI
30th Aug 2025173 PMAQI
30th Aug 2025154 PMAQI
30th Aug 2025165 PMAQI
30th Aug 2025176 PMAQI
30th Aug 2025167 PMAQI
30th Aug 2025168 PMAQI
30th Aug 2025169 PMAQI
30th Aug 20251810 PMAQI
30th Aug 20251911 PMAQI
31st Aug 20252312 AMAQI
31st Aug 2025241 AMAQI
31st Aug 2025242 AMAQI
31st Aug 2025253 AMAQI
31st Aug 2025264 AMAQI
31st Aug 2025255 AMAQI

16°C10/23°C

31st Aug 2025246 AMAQI
31st Aug 2025247 AMAQI
31st Aug 2025248 AMAQI
31st Aug 2025249 AMAQI
31st Aug 20252310 AMAQI
31st Aug 20252211 AMAQI
31st Aug 20252212 PMAQI
31st Aug 2025221 PMAQI
31st Aug 2025212 PMAQI
31st Aug 2025223 PMAQI
31st Aug 2025214 PMAQI
31st Aug 2025205 PMAQI
31st Aug 2025206 PMAQI
31st Aug 2025197 PMAQI
31st Aug 2025188 PMAQI
31st Aug 2025239 PMAQI
31st Aug 20252410 PMAQI
31st Aug 20252511 PMAQI
1st Sep 20252712 AMAQI
1st Sep 2025301 AMAQI
1st Sep 2025312 AMAQI
1st Sep 2025333 AMAQI
1st Sep 2025334 AMAQI
1st Sep 2025295 AMAQI

20°C9/28°C

1st Sep 2025316 AMAQI
1st Sep 2025317 AMAQI
1st Sep 2025318 AMAQI
1st Sep 2025319 AMAQI
1st Sep 20253010 AMAQI
1st Sep 20253111 AMAQI
1st Sep 20253212 PMAQI
1st Sep 2025321 PMAQI
1st Sep 2025302 PMAQI
1st Sep 2025273 PMAQI
1st Sep 2025264 PMAQI
1st Sep 2025265 PMAQI
1st Sep 2025266 PMAQI
1st Sep 2025267 PMAQI
1st Sep 2025268 PMAQI
1st Sep 2025329 PMAQI
1st Sep 20253110 PMAQI
1st Sep 20252911 PMAQI
2nd Sep 20253112 AMAQI
2nd Sep 2025331 AMAQI
2nd Sep 2025362 AMAQI
2nd Sep 2025373 AMAQI
2nd Sep 2025354 AMAQI
2nd Sep 2025365 AMAQI

20°C10/30°C

2nd Sep 2025336 AMAQI
2nd Sep 2025347 AMAQI
2nd Sep 2025358 AMAQI
2nd Sep 2025359 AMAQI
2nd Sep 20253610 AMAQI
2nd Sep 20253611 AMAQI
2nd Sep 20253812 PMAQI
2nd Sep 2025381 PMAQI
2nd Sep 2025352 PMAQI
2nd Sep 2025323 PMAQI
2nd Sep 2025314 PMAQI
2nd Sep 2025305 PMAQI
2nd Sep 2025286 PMAQI
2nd Sep 2025287 PMAQI
2nd Sep 2025288 PMAQI
2nd Sep 2025349 PMAQI
2nd Sep 20252910 PMAQI
2nd Sep 20253011 PMAQI
3rd Sep 20253212 AMAQI
3rd Sep 2025311 AMAQI
3rd Sep 2025342 AMAQI
3rd Sep 2025343 AMAQI
3rd Sep 2025334 AMAQI
3rd Sep 2025345 AMAQI

22°C13/29°C

3rd Sep 2025336 AMAQI
3rd Sep 2025347 AMAQI
3rd Sep 2025358 AMAQI
3rd Sep 2025369 AMAQI
3rd Sep 20253610 AMAQI
3rd Sep 20253511 AMAQI
3rd Sep 20253512 PMAQI
3rd Sep 2025321 PMAQI
3rd Sep 2025292 PMAQI
3rd Sep 2025273 PMAQI
3rd Sep 2025284 PMAQI
3rd Sep 2025275 PMAQI
3rd Sep 2025266 PMAQI
3rd Sep 2025257 PMAQI
3rd Sep 2025248 PMAQI
3rd Sep 2025339 PMAQI
3rd Sep 20252810 PMAQI
3rd Sep 20252711 PMAQI
4th Sep 20252912 AMAQI
4th Sep 2025311 AMAQI
4th Sep 2025302 AMAQI
4th Sep 2025273 AMAQI
4th Sep 2025264 AMAQI
4th Sep 2025245 AMAQI

21°C14/29°C

4th Sep 2025236 AMAQI
4th Sep 2025237 AMAQI
4th Sep 2025248 AMAQI
4th Sep 2025249 AMAQI
4th Sep 20252210 AMAQI
4th Sep 20252211 AMAQI
4th Sep 20252212 PMAQI
4th Sep 2025261 PMAQI
4th Sep 2025352 PMAQI
4th Sep 2025343 PMAQI
4th Sep 2025364 PMAQI
4th Sep 2025395 PMAQI
4th Sep 2025356 PMAQI
4th Sep 2025297 PMAQI
4th Sep 2025268 PMAQI
4th Sep 2025339 PMAQI
4th Sep 20252510 PMAQI
4th Sep 20252111 PMAQI
5th Sep 20252212 AMAQI
5th Sep 2025241 AMAQI
5th Sep 2025242 AMAQI
5th Sep 2025223 AMAQI
5th Sep 2025234 AMAQI
5th Sep 2025245 AMAQI

18°C11/29°C

5th Sep 2025246 AMAQI
5th Sep 2025277 AMAQI
5th Sep 2025288 AMAQI
5th Sep 2025289 AMAQI
5th Sep 20252610 AMAQI
5th Sep 20252611 AMAQI
5th Sep 20252612 PMAQI
5th Sep 2025261 PMAQI
5th Sep 2025282 PMAQI
5th Sep 2025263 PMAQI
5th Sep 2025314 PMAQI
5th Sep 2025355 PMAQI
5th Sep 2025396 PMAQI
5th Sep 2025427 PMAQI
5th Sep 2025448 PMAQI
5th Sep 2025289 PMAQI
5th Sep 20254810 PMAQI
5th Sep 20255011 PMAQI
6th Sep 20254612 AMAQI
6th Sep 2025421 AMAQI
6th Sep 2025362 AMAQI
6th Sep 2025303 AMAQI
6th Sep 2025254 AMAQI
6th Sep 2025225 AMAQI

17°C8/26°C

6th Sep 2025206 AMAQI
6th Sep 2025207 AMAQI
6th Sep 2025198 AMAQI
6th Sep 2025209 AMAQI
6th Sep 20251910 AMAQI
6th Sep 20251911 AMAQI
6th Sep 20251912 PMAQI
6th Sep 2025211 PMAQI
6th Sep 2025192 PMAQI
6th Sep 2025193 PMAQI
6th Sep 2025194 PMAQI
6th Sep 2025185 PMAQI
6th Sep 2025186 PMAQI
6th Sep 2025187 PMAQI
6th Sep 2025188 PMAQI
6th Sep 2025209 PMAQI
6th Sep 20251910 PMAQI
6th Sep 20252011 PMAQI
7th Sep 20252112 AMAQI
7th Sep 2025221 AMAQI
7th Sep 2025212 AMAQI
7th Sep 2025203 AMAQI
7th Sep 2025224 AMAQI
7th Sep 2025215 AMAQI

16°C10/21°C

7th Sep 2025216 AMAQI
7th Sep 2025207 AMAQI
7th Sep 2025208 AMAQI
7th Sep 2025209 AMAQI
7th Sep 20252010 AMAQI
7th Sep 20252011 AMAQI
7th Sep 20252012 PMAQI
7th Sep 2025181 PMAQI
7th Sep 2025162 PMAQI
7th Sep 2025163 PMAQI
7th Sep 2025164 PMAQI
7th Sep 2025145 PMAQI
7th Sep 2025146 PMAQI
7th Sep 2025147 PMAQI
7th Sep 2025148 PMAQI
7th Sep 2025209 PMAQI
7th Sep 20251910 PMAQI
7th Sep 20251811 PMAQI
8th Sep 20251912 AMAQI
8th Sep 2025201 AMAQI
8th Sep 2025202 AMAQI
8th Sep 2025193 AMAQI
8th Sep 2025204 AMAQI
8th Sep 2025195 AMAQI

15°C11/19°C

8th Sep 2025186 AMAQI
8th Sep 2025217 AMAQI
8th Sep 2025188 AMAQI
8th Sep 2025219 AMAQI
8th Sep 20252410 AMAQI
8th Sep 20252611 AMAQI
8th Sep 20252312 PMAQI
8th Sep 2025211 PMAQI
8th Sep 2025192 PMAQI
8th Sep 2025183 PMAQI
8th Sep 2025174 PMAQI
8th Sep 2025165 PMAQI
8th Sep 2025176 PMAQI
8th Sep 2025157 PMAQI
8th Sep 2025158 PMAQI
8th Sep 2025199 PMAQI
8th Sep 20251910 PMAQI
8th Sep 20252011 PMAQI
9th Sep 20252312 AMAQI
9th Sep 2025221 AMAQI
9th Sep 2025282 AMAQI
9th Sep 2025323 AMAQI
9th Sep 2025314 AMAQI
9th Sep 2025295 AMAQI

15°C7/21°C

9th Sep 2025276 AMAQI
9th Sep 2025297 AMAQI
9th Sep 2025288 AMAQI
9th Sep 2025309 AMAQI
9th Sep 20252610 AMAQI
9th Sep 20252811 AMAQI
9th Sep 20252612 PMAQI
9th Sep 2025271 PMAQI
9th Sep 2025272 PMAQI
9th Sep 2025253 PMAQI
9th Sep 2025244 PMAQI
9th Sep 2025225 PMAQI
9th Sep 2025226 PMAQI
9th Sep 2025207 PMAQI
9th Sep 2025208 PMAQI
9th Sep 2025279 PMAQI
9th Sep 20252510 PMAQI
9th Sep 20252511 PMAQI
10th Sep 20252612 AMAQI
10th Sep 2025271 AMAQI
10th Sep 2025302 AMAQI
10th Sep 2025323 AMAQI
10th Sep 2025304 AMAQI
10th Sep 2025285 AMAQI

15°C5/25°C

10th Sep 2025316 AMAQI
10th Sep 2025287 AMAQI
10th Sep 2025258 AMAQI
10th Sep 2025259 AMAQI
10th Sep 20252910 AMAQI
10th Sep 20253011 AMAQI
10th Sep 20253012 PMAQI
10th Sep 2025301 PMAQI
10th Sep 2025302 PMAQI
10th Sep 2025283 PMAQI
10th Sep 2025274 PMAQI
10th Sep 2025265 PMAQI
10th Sep 2025236 PMAQI
10th Sep 2025227 PMAQI
10th Sep 2025228 PMAQI
10th Sep 2025289 PMAQI
10th Sep 20252810 PMAQI
10th Sep 20252811 PMAQI
11th Sep 20252812 AMAQI
11th Sep 2025321 AMAQI
11th Sep 2025342 AMAQI
11th Sep 2025293 AMAQI
11th Sep 2025274 AMAQI
11th Sep 2025305 AMAQI

18°C7/27°C

11th Sep 2025296 AMAQI
11th Sep 2025287 AMAQI
11th Sep 2025318 AMAQI
11th Sep 2025359 AMAQI
11th Sep 20253610 AMAQI
11th Sep 20253611 AMAQI
11th Sep 20253112 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025322 PMAQI
11th Sep 2025343 PMAQI
11th Sep 2025344 PMAQI
11th Sep 2025345 PMAQI
11th Sep 2025346 PMAQI
11th Sep 2025367 PMAQI
11th Sep 2025368 PMAQI
11th Sep 2025349 PMAQI
11th Sep 20252810 PMAQI
11th Sep 20252411 PMAQI
12th Sep 20252412 AMAQI
12th Sep 2025221 AMAQI
12th Sep 2025222 AMAQI
12th Sep 2025213 AMAQI
12th Sep 2025204 AMAQI
12th Sep 2025205 AMAQI

18°C11/23°C

12th Sep 2025206 AMAQI
12th Sep 2025217 AMAQI
12th Sep 2025208 AMAQI
12th Sep 2025229 AMAQI
12th Sep 20252210 AMAQI
12th Sep 20252311 AMAQI
12th Sep 20252412 PMAQI
12th Sep 2025231 PMAQI
12th Sep 2025232 PMAQI
12th Sep 2025233 PMAQI
12th Sep 2025244 PMAQI
12th Sep 2025235 PMAQI
12th Sep 2025246 PMAQI
12th Sep 2025247 PMAQI
12th Sep 2025248 PMAQI
12th Sep 2025229 PMAQI
12th Sep 20252710 PMAQI
12th Sep 20253111 PMAQI
13th Sep 20253212 AMAQI
13th Sep 2025351 AMAQI
13th Sep 2025352 AMAQI
13th Sep 2025343 AMAQI
13th Sep 2025334 AMAQI
13th Sep 2025305 AMAQI

16°C8/24°C

13th Sep 2025346 AMAQI
13th Sep 2025307 AMAQI
13th Sep 2025308 AMAQI
13th Sep 2025329 AMAQI
13th Sep 20253210 AMAQI
13th Sep 20253211 AMAQI
13th Sep 20253612 PMAQI
13th Sep 2025341 PMAQI
13th Sep 2025342 PMAQI
13th Sep 2025343 PMAQI
13th Sep 2025324 PMAQI
13th Sep 2025325 PMAQI
13th Sep 2025306 PMAQI
13th Sep 2025327 PMAQI
13th Sep 2025338 PMAQI
13th Sep 2025339 PMAQI
13th Sep 20253310 PMAQI
13th Sep 20253611 PMAQI
14th Sep 20253612 AMAQI
14th Sep 2025381 AMAQI
14th Sep 2025382 AMAQI
14th Sep 2025403 AMAQI
14th Sep 2025404 AMAQI
14th Sep 2025405 AMAQI

19°C12/27°C

14th Sep 2025406 AMAQI
14th Sep 2025407 AMAQI
14th Sep 2025398 AMAQI
14th Sep 2025389 AMAQI
14th Sep 20253810 AMAQI
14th Sep 20253811 AMAQI
14th Sep 20253712 PMAQI
14th Sep 2025361 PMAQI
14th Sep 2025362 PMAQI
14th Sep 2025343 PMAQI
14th Sep 2025344 PMAQI
14th Sep 2025325 PMAQI
14th Sep 2025336 PMAQI
14th Sep 2025327 PMAQI
14th Sep 2025318 PMAQI
14th Sep 2025379 PMAQI
14th Sep 20253410 PMAQI
14th Sep 20253211 PMAQI
15th Sep 20252812 AMAQI
15th Sep 2025291 AMAQI
15th Sep 2025252 AMAQI
15th Sep 2025243 AMAQI
15th Sep 2025244 AMAQI
15th Sep 2025225 AMAQI

18°C13/23°C

15th Sep 2025226 AMAQI
15th Sep 2025267 AMAQI
15th Sep 2025228 AMAQI
15th Sep 2025259 AMAQI
15th Sep 20252810 AMAQI
15th Sep 20253211 AMAQI
15th Sep 20252612 PMAQI
15th Sep 2025231 PMAQI
15th Sep 2025232 PMAQI
15th Sep 2025233 PMAQI
15th Sep 2025244 PMAQI
15th Sep 2025255 PMAQI
15th Sep 2025266 PMAQI
15th Sep 2025257 PMAQI
15th Sep 2025268 PMAQI
15th Sep 2025259 PMAQI
15th Sep 20252510 PMAQI
15th Sep 20253011 PMAQI
16th Sep 20252812 AMAQI
16th Sep 2025281 AMAQI
16th Sep 2025322 AMAQI
16th Sep 2025283 AMAQI
16th Sep 2025324 AMAQI
16th Sep 2025305 AMAQI

19°C10/26°C

16th Sep 2025336 AMAQI
16th Sep 2025317 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025349 AMAQI
16th Sep 20253410 AMAQI
16th Sep 20253811 AMAQI
16th Sep 20253812 PMAQI
16th Sep 2025301 PMAQI
16th Sep 2025352 PMAQI
16th Sep 2025303 PMAQI
16th Sep 2025294 PMAQI
16th Sep 2025335 PMAQI
16th Sep 2025306 PMAQI
16th Sep 2025307 PMAQI
16th Sep 2025308 PMAQI
16th Sep 2025329 PMAQI
16th Sep 20253210 PMAQI
16th Sep 20253311 PMAQI
17th Sep 20253112 AMAQI
17th Sep 2025341 AMAQI
17th Sep 2025342 AMAQI
17th Sep 2025333 AMAQI
17th Sep 2025344 AMAQI
17th Sep 2025325 AMAQI

19°C10/28°C

17th Sep 2025326 AMAQI
17th Sep 2025357 AMAQI
17th Sep 2025348 AMAQI
17th Sep 2025319 AMAQI
17th Sep 20252810 AMAQI
17th Sep 20253011 AMAQI
17th Sep 20253212 PMAQI
17th Sep 2025311 PMAQI
17th Sep 2025302 PMAQI
17th Sep 2025323 PMAQI
17th Sep 2025324 PMAQI
17th Sep 2025325 PMAQI
17th Sep 2025326 PMAQI
17th Sep 2025337 PMAQI
17th Sep 2025328 PMAQI
17th Sep 2025309 PMAQI
17th Sep 20253010 PMAQI
17th Sep 20253711 PMAQI
18th Sep 20252912 AMAQI
18th Sep 2025321 AMAQI
18th Sep 2025342 AMAQI
18th Sep 2025273 AMAQI
18th Sep 2025284 AMAQI
18th Sep 2025285 AMAQI

19°C11/27°C

18th Sep 2025266 AMAQI
18th Sep 2025267 AMAQI
18th Sep 2025268 AMAQI
18th Sep 2025279 AMAQI
18th Sep 20252810 AMAQI
18th Sep 20252811 AMAQI
18th Sep 20252812 PMAQI
18th Sep 2025301 PMAQI
18th Sep 2025322 PMAQI
18th Sep 2025343 PMAQI
18th Sep 2025324 PMAQI
18th Sep 2025315 PMAQI
18th Sep 2025326 PMAQI
18th Sep 2025327 PMAQI
18th Sep 2025308 PMAQI
18th Sep 2025299 PMAQI
18th Sep 20252810 PMAQI
18th Sep 20252611 PMAQI
19th Sep 20252612 AMAQI
19th Sep 2025261 AMAQI
19th Sep 2025262 AMAQI
19th Sep 2025143 AMAQI
19th Sep 2025134 AMAQI
19th Sep 2025135 AMAQI

19°C12/27°C

19th Sep 2025166 AMAQI
19th Sep 2025137 AMAQI
19th Sep 2025148 AMAQI
19th Sep 2025159 AMAQI
19th Sep 20251610 AMAQI
19th Sep 20251611 AMAQI
19th Sep 20251612 PMAQI
19th Sep 2025171 PMAQI
19th Sep 2025162 PMAQI
19th Sep 2025163 PMAQI
19th Sep 2025164 PMAQI
19th Sep 2025175 PMAQI
19th Sep 2025176 PMAQI
19th Sep 2025187 PMAQI
19th Sep 2025178 PMAQI
19th Sep 2025179 PMAQI
19th Sep 20251810 PMAQI
19th Sep 20251811 PMAQI
20th Sep 20251812 AMAQI
20th Sep 2025181 AMAQI
20th Sep 2025182 AMAQI
20th Sep 2025163 AMAQI
20th Sep 2025164 AMAQI
20th Sep 2025165 AMAQI

13°C9/19°C

20th Sep 2025146 AMAQI
20th Sep 2025147 AMAQI
20th Sep 2025158 AMAQI
20th Sep 2025159 AMAQI
20th Sep 20251610 AMAQI
20th Sep 20251511 AMAQI
20th Sep 20251512 PMAQI
20th Sep 2025151 PMAQI
20th Sep 2025162 PMAQI
20th Sep 2025153 PMAQI
20th Sep 2025154 PMAQI
20th Sep 2025165 PMAQI
20th Sep 2025156 PMAQI
20th Sep 2025167 PMAQI
20th Sep 2025168 PMAQI
20th Sep 2025169 PMAQI
20th Sep 20251710 PMAQI
20th Sep 20251911 PMAQI
21st Sep 20251812 AMAQI
21st Sep 2025201 AMAQI
21st Sep 2025182 AMAQI
21st Sep 2025203 AMAQI
21st Sep 2025204 AMAQI
21st Sep 2025185 AMAQI

12°C5/19°C

21st Sep 2025186 AMAQI
6 AM
21st Sep 2025177 AMAQI
21st Sep 2025168 AMAQI
21st Sep 2025179 AMAQI
12 PM
7 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
11 AM

27AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM - 8 AM

24AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 11 AM (Avg. 27), while the lowest AQI was between 6 AM to 8 AM (Avg. 24).
Night time
Avg. Highest Time
1 AM - 2 AM

27AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
8 PM

24AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 2 AM (Avg. 27), while the lowest AQI was between 8 PM to 8 PM (Avg. 24).

2025 Days Vs Air Quality

Gatineau Hull Area, Ottawa, Ontario, Canada

2025

90%

237

10%

25

Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)

Good
237 Days
Moderate
25 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 90%

Health Risk Level:

Very Low

In 2025, 90% of 264 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

Gatineau Hull Area, Ottawa, Ontario, Canada

AQI levels in 2025

AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
22AQI
2nd January 2025
19AQI
3rd January 2025
20AQI
4th January 2025
22AQI
5th January 2025
22AQI
6th January 2025
27AQI
7th January 2025
20AQI
8th January 2025
20AQI
9th January 2025
22AQI
10th January 2025
26AQI
11th January 2025
38AQI
12th January 2025
30AQI
13th January 2025
53AQI
14th January 2025
26AQI
15th January 2025
22AQI
16th January 2025
38AQI
17th January 2025
49AQI
18th January 2025
30AQI
19th January 2025
21AQI
20th January 2025
24AQI
21st January 2025
43AQI
22nd January 2025
43AQI
23rd January 2025
36AQI
24th January 2025
36AQI
25th January 2025
53AQI
26th January 2025
35AQI
27th January 2025
30AQI
28th January 2025
25AQI
29th January 2025
23AQI
30th January 2025
23AQI
31st January 2025
42AQI
1st February 2025
23AQI
2nd February 2025
36AQI
3rd February 2025
55AQI
4th February 2025
24AQI
5th February 2025
22AQI
6th February 2025
36AQI
7th February 2025
29AQI
8th February 2025
23AQI
9th February 2025
23AQI
10th February 2025
21AQI
11th February 2025
27AQI
12th February 2025
28AQI
13th February 2025
22AQI
14th February 2025
19AQI
15th February 2025
20AQI
16th February 2025
19AQI
17th February 2025
19AQI
18th February 2025
19AQI
19th February 2025
20AQI
20th February 2025
24AQI
21st February 2025
31AQI
22nd February 2025
42AQI
23rd February 2025
51AQI
24th February 2025
51AQI
25th February 2025
56AQI
26th February 2025
31AQI
27th February 2025
38AQI
28th February 2025
25AQI
1st March 2025
23AQI
2nd March 2025
22AQI
3rd March 2025
43AQI
4th March 2025
39AQI
5th March 2025
47AQI
6th March 2025
25AQI
7th March 2025
25AQI
8th March 2025
27AQI
9th March 2025
26AQI
10th March 2025
23AQI
11th March 2025
35AQI
12th March 2025
23AQI
13th March 2025
38AQI
14th March 2025
60AQI
15th March 2025
57AQI
16th March 2025
46AQI
17th March 2025
16AQI
18th March 2025
22AQI
19th March 2025
27AQI
20th March 2025
32AQI
21st March 2025
16AQI
22nd March 2025
20AQI
23rd March 2025
17AQI
24th March 2025
22AQI
25th March 2025
20AQI
26th March 2025
20AQI
27th March 2025
18AQI
28th March 2025
19AQI
29th March 2025
18AQI
30th March 2025
20AQI
31st March 2025
24AQI
1st April 2025
17AQI
2nd April 2025
20AQI
3rd April 2025
20AQI
4th April 2025
19AQI
5th April 2025
20AQI
6th April 2025
20AQI
7th April 2025
20AQI
8th April 2025
18AQI
9th April 2025
16AQI
10th April 2025
29AQI
11th April 2025
27AQI
12th April 2025
25AQI
13th April 2025
27AQI
14th April 2025
29AQI
15th April 2025
20AQI
16th April 2025
15AQI
17th April 2025
15AQI
18th April 2025
32AQI
19th April 2025
37AQI
20th April 2025
15AQI
21st April 2025
16AQI
22nd April 2025
16AQI
23rd April 2025
13AQI
24th April 2025
23AQI
25th April 2025
21AQI
26th April 2025
15AQI
27th April 2025
12AQI
28th April 2025
16AQI
29th April 2025
26AQI
30th April 2025
13AQI
1st May 2025
21AQI
2nd May 2025
20AQI
3rd May 2025
13AQI
4th May 2025
15AQI
5th May 2025
16AQI
6th May 2025
16AQI
7th May 2025
17AQI
8th May 2025
14AQI
9th May 2025
16AQI
10th May 2025
17AQI
11th May 2025
14AQI
12th May 2025
18AQI
13th May 2025
26AQI
14th May 2025
28AQI
15th May 2025
22AQI
16th May 2025
27AQI
17th May 2025
28AQI
18th May 2025
13AQI
19th May 2025
12AQI
20th May 2025
12AQI
21st May 2025
18AQI
22nd May 2025
15AQI
23rd May 2025
14AQI
24th May 2025
12AQI
25th May 2025
15AQI
26th May 2025
20AQI
27th May 2025
24AQI
28th May 2025
26AQI
29th May 2025
20AQI
30th May 2025
20AQI
31st May 2025
22AQI
1st June 2025
13AQI
2nd June 2025
15AQI
3rd June 2025
25AQI
4th June 2025
43AQI
5th June 2025
43AQI
6th June 2025
53AQI
7th June 2025
59AQI
8th June 2025
58AQI
9th June 2025
56AQI
10th June 2025
36AQI
11th June 2025
49AQI
12th June 2025
51AQI
13th June 2025
24AQI
14th June 2025
23AQI
15th June 2025
25AQI
16th June 2025
32AQI
17th June 2025
27AQI
18th June 2025
24AQI
19th June 2025
29AQI
20th June 2025
19AQI
21st June 2025
23AQI
22nd June 2025
23AQI
23rd June 2025
35AQI
24th June 2025
47AQI
25th June 2025
36AQI
26th June 2025
24AQI
27th June 2025
22AQI
28th June 2025
24AQI
29th June 2025
19AQI
30th June 2025
27AQI
1st July 2025
31AQI
2nd July 2025
29AQI
3rd July 2025
38AQI
4th July 2025
24AQI
5th July 2025
26AQI
6th July 2025
45AQI
7th July 2025
42AQI
8th July 2025
26AQI
9th July 2025
26AQI
10th July 2025
29AQI
11th July 2025
35AQI
12th July 2025
45AQI
13th July 2025
40AQI
14th July 2025
45AQI
15th July 2025
47AQI
16th July 2025
55AQI
17th July 2025
55AQI
18th July 2025
25AQI
19th July 2025
30AQI
20th July 2025
28AQI
21st July 2025
30AQI
22nd July 2025
19AQI
23rd July 2025
21AQI
24th July 2025
25AQI
25th July 2025
31AQI
26th July 2025
50AQI
27th July 2025
56AQI
28th July 2025
58AQI
29th July 2025
46AQI
30th July 2025
62AQI
31st July 2025
48AQI
1st August 2025
22AQI
2nd August 2025
37AQI
3rd August 2025
58AQI
4th August 2025
74AQI
5th August 2025
36AQI
6th August 2025
30AQI
7th August 2025
37AQI
8th August 2025
54AQI
9th August 2025
60AQI
10th August 2025
62AQI
11th August 2025
55AQI
12th August 2025
53AQI
13th August 2025
46AQI
14th August 2025
41AQI
15th August 2025
22AQI
16th August 2025
37AQI
17th August 2025
24AQI
18th August 2025
16AQI
19th August 2025
20AQI
20th August 2025
21AQI
21st August 2025
21AQI
22nd August 2025
28AQI
23rd August 2025
28AQI
24th August 2025
27AQI
25th August 2025
20AQI
26th August 2025
14AQI
27th August 2025
19AQI
28th August 2025
24AQI
29th August 2025
17AQI
30th August 2025
17AQI
31st August 2025
23AQI
1st September 2025
30AQI
2nd September 2025
33AQI
3rd September 2025
31AQI
4th September 2025
27AQI
5th September 2025
31AQI
6th September 2025
23AQI
7th September 2025
19AQI
8th September 2025
19AQI
9th September 2025
26AQI
10th September 2025
28AQI
11th September 2025
32AQI
12th September 2025
23AQI
13th September 2025
33AQI
14th September 2025
36AQI
15th September 2025
25AQI
16th September 2025
32AQI
17th September 2025
32AQI
18th September 2025
29AQI
19th September 2025
17AQI
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

30AQI

30AQI

28AQI

20AQI

18AQI

33AQI

38AQI

34AQI

28AQI


No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202529AQI

29
2
24
4
29
2
30
31
25
5
26
5
24
7
19
237
25

Highest AQI recorded in

July

38AQI


Lowest AQI recorded in

May

18AQI


202428AQI

30
1
25
4
29
2
29
31
27
2
27
4
21
10
30
31
30
28
3
338
26

Highest AQI recorded in

August

34AQI


Lowest AQI recorded in

November

23AQI


202336AQI

30
1
24
4
29
2
28
2
30
1
14
9
7
21
9
1
27
4
24
6
26
5
27
2
25
6
305
51
8

Highest AQI recorded in

June

66AQI


Lowest AQI recorded in

November

27AQI


202230AQI

21
9
19
2
29
2
17
30
1
30
22
1
1
29
28
2
26
4
28
3
280
24

Highest AQI recorded in

January

42AQI


Lowest AQI recorded in

August

21AQI


202132AQI

24
6
22
6
8
2
29
29
2
29
1
25
4
2
23
8
30
31
28
2
25
4
303
35
2

Highest AQI recorded in

August

41AQI


Lowest AQI recorded in

September

20AQI


202026AQI

26
31
31
30
31
23
7
26
5
198
12

Highest AQI recorded in

November

37AQI


Lowest AQI recorded in

September

21AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
36AQI
Least Polluted Year Recorded
2020(Avg.)
26AQI


Gatineau Hull Area's annual 2025 AQI (29) shows an average percentage change of -4.04% (improved AQI) compared to previous years: 2020 (26), 2021 (32), 2022 (30), 2023 (36), 2024 (28).