Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Lower Town, 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+

November Air Quality Analysis

Lower Town, Ottawa, Ontario, Canada

2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
21st Nov 2025
70AQI
Lowest AQI recorded on
4th Nov 2025
14AQI

Same Day Analysis (26th November ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 26th Nov - 27th Nov 2025

Lower Town, Ottawa, Ontario, Canada

AQI
Day
Night
.

7 AM26th Nov 2025

4 PM

6 AM27th Nov 2025

Day time
Avg. Highest Time
7AM26th Nov

55AQI

Avg. Lowest Time
2PM26th Nov

39AQI

Night time
Avg. Highest Time
8PM26th Nov

56AQI

Avg. Lowest Time
6AM27th Nov

17AQI

In the last 24 hours,

Lower Town's AQI reached its highest point of 56 at 8 PM during the Night, while the lowest point, 17, was recorded at 6 AM during the Night between 26th Nov and 27th Nov 2025.

Day & Night AQI Trend : Oct - Nov 2025

Lower Town, Ottawa, Ontario, Canada

OctNov
28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th
Day
Night
28th Oct 2025227 AMAQI
28th Oct 2025188 AMAQI
28th Oct 2025179 AMAQI
28th Oct 20251710 AMAQI
28th Oct 20252011 AMAQI
28th Oct 20252212 PMAQI
28th Oct 2025221 PMAQI
28th Oct 2025222 PMAQI
28th Oct 2025183 PMAQI
28th Oct 2025174 PMAQI
28th Oct 2025175 PMAQI
28th Oct 2025176 PMAQI
28th Oct 2025177 PMAQI
28th Oct 2025208 PMAQI
28th Oct 2025269 PMAQI
28th Oct 20252810 PMAQI
28th Oct 20253211 PMAQI
29th Oct 20254112 AMAQI
29th Oct 2025441 AMAQI
29th Oct 2025442 AMAQI
29th Oct 2025443 AMAQI
29th Oct 2025364 AMAQI
29th Oct 2025335 AMAQI
29th Oct 2025306 AMAQI

6°C0/15°C

29th Oct 2025247 AMAQI
29th Oct 2025188 AMAQI
29th Oct 2025179 AMAQI
29th Oct 20252010 AMAQI
29th Oct 20252211 AMAQI
29th Oct 20252212 PMAQI
29th Oct 2025181 PMAQI
29th Oct 2025172 PMAQI
29th Oct 2025173 PMAQI
29th Oct 2025174 PMAQI
29th Oct 2025175 PMAQI
29th Oct 2025176 PMAQI
29th Oct 2025177 PMAQI
29th Oct 2025208 PMAQI
29th Oct 2025309 PMAQI
29th Oct 20253310 PMAQI
29th Oct 20253011 PMAQI
30th Oct 20253112 AMAQI
30th Oct 2025301 AMAQI
30th Oct 2025282 AMAQI
30th Oct 2025323 AMAQI
30th Oct 2025334 AMAQI
30th Oct 2025335 AMAQI
30th Oct 2025336 AMAQI

6°C0/13°C

30th Oct 2025337 AMAQI
30th Oct 2025338 AMAQI
30th Oct 2025339 AMAQI
30th Oct 20253310 AMAQI
30th Oct 20253311 AMAQI
30th Oct 20253312 PMAQI
30th Oct 2025331 PMAQI
30th Oct 2025332 PMAQI
30th Oct 2025373 PMAQI
30th Oct 2025354 PMAQI
30th Oct 2025305 PMAQI
30th Oct 2025286 PMAQI
30th Oct 2025287 PMAQI
30th Oct 2025278 PMAQI
30th Oct 2025279 PMAQI
30th Oct 20252010 PMAQI
30th Oct 20252011 PMAQI
31st Oct 20251912 AMAQI
31st Oct 2025171 AMAQI
31st Oct 2025172 AMAQI
31st Oct 2025133 AMAQI
31st Oct 2025114 AMAQI
31st Oct 2025115 AMAQI
31st Oct 2025116 AMAQI

5°C4/6°C

31st Oct 2025117 AMAQI
31st Oct 2025118 AMAQI
31st Oct 2025119 AMAQI
31st Oct 20251110 AMAQI
31st Oct 20251211 AMAQI
31st Oct 20251212 PMAQI
31st Oct 2025121 PMAQI
31st Oct 2025112 PMAQI
31st Oct 2025113 PMAQI
31st Oct 2025114 PMAQI
31st Oct 2025115 PMAQI
31st Oct 2025126 PMAQI
31st Oct 2025127 PMAQI
31st Oct 2025368 PMAQI
31st Oct 2025229 PMAQI
31st Oct 20251410 PMAQI
31st Oct 20251511 PMAQI
1st Nov 20252212 AMAQI
1st Nov 2025131 AMAQI
1st Nov 2025162 AMAQI
1st Nov 2025203 AMAQI
1st Nov 2025184 AMAQI
1st Nov 2025175 AMAQI
1st Nov 2025136 AMAQI

5°C1/6°C

1st Nov 2025117 AMAQI
1st Nov 2025118 AMAQI
1st Nov 2025159 AMAQI
1st Nov 20251710 AMAQI
1st Nov 20251711 AMAQI
1st Nov 20251712 PMAQI
1st Nov 2025171 PMAQI
1st Nov 2025172 PMAQI
1st Nov 2025173 PMAQI
1st Nov 2025174 PMAQI
1st Nov 2025175 PMAQI
1st Nov 2025176 PMAQI
1st Nov 2025177 PMAQI
1st Nov 2025138 PMAQI
1st Nov 2025159 PMAQI
1st Nov 20251710 PMAQI
1st Nov 20251711 PMAQI
2nd Nov 20251712 AMAQI
2nd Nov 2025171 AMAQI
2nd Nov 2025122 AMAQI
2nd Nov 2025113 AMAQI
2nd Nov 2025114 AMAQI
2nd Nov 2025115 AMAQI
2nd Nov 2025116 AMAQI

4°C2/5°C

2nd Nov 2025117 AMAQI
2nd Nov 2025118 AMAQI
2nd Nov 2025119 AMAQI
2nd Nov 20252010 AMAQI
2nd Nov 20252211 AMAQI
2nd Nov 20252212 PMAQI
2nd Nov 2025181 PMAQI
2nd Nov 2025182 PMAQI
2nd Nov 2025123 PMAQI
2nd Nov 2025114 PMAQI
2nd Nov 2025115 PMAQI
2nd Nov 2025166 PMAQI
2nd Nov 2025177 PMAQI
2nd Nov 2025228 PMAQI
2nd Nov 2025229 PMAQI
2nd Nov 20252210 PMAQI
2nd Nov 20251811 PMAQI
3rd Nov 20251712 AMAQI
3rd Nov 2025171 AMAQI
3rd Nov 2025172 AMAQI
3rd Nov 2025213 AMAQI
3rd Nov 2025224 AMAQI
3rd Nov 2025225 AMAQI
3rd Nov 2025276 AMAQI

4°C0/10°C

3rd Nov 2025287 AMAQI
3rd Nov 2025288 AMAQI
3rd Nov 2025289 AMAQI
3rd Nov 20252810 AMAQI
3rd Nov 20253211 AMAQI
3rd Nov 20253312 PMAQI
3rd Nov 2025291 PMAQI
3rd Nov 2025282 PMAQI
3rd Nov 2025283 PMAQI
3rd Nov 2025184 PMAQI
3rd Nov 2025175 PMAQI
3rd Nov 2025226 PMAQI
3rd Nov 2025227 PMAQI
3rd Nov 2025228 PMAQI
3rd Nov 2025189 PMAQI
3rd Nov 20251710 PMAQI
3rd Nov 20251811 PMAQI
4th Nov 20251712 AMAQI
4th Nov 2025171 AMAQI
4th Nov 2025172 AMAQI
4th Nov 2025143 AMAQI
4th Nov 2025124 AMAQI
4th Nov 2025165 AMAQI
4th Nov 2025176 AMAQI

5°C1/12°C

4th Nov 2025147 AMAQI
4th Nov 2025168 AMAQI
4th Nov 2025179 AMAQI
4th Nov 20251310 AMAQI
4th Nov 20251111 AMAQI
4th Nov 20251512 PMAQI
4th Nov 2025131 PMAQI
4th Nov 2025112 PMAQI
4th Nov 2025113 PMAQI
4th Nov 2025204 PMAQI
4th Nov 2025185 PMAQI
4th Nov 2025186 PMAQI
4th Nov 2025137 PMAQI
4th Nov 2025118 PMAQI
4th Nov 2025129 PMAQI
4th Nov 20251310 PMAQI
4th Nov 20251411 PMAQI
5th Nov 20251812 AMAQI
5th Nov 2025201 AMAQI
5th Nov 2025142 AMAQI
5th Nov 2025113 AMAQI
5th Nov 2025114 AMAQI
5th Nov 2025115 AMAQI
5th Nov 2025116 AMAQI

6°C3/13°C

5th Nov 2025117 AMAQI
5th Nov 2025118 AMAQI
5th Nov 2025119 AMAQI
5th Nov 20252110 AMAQI
5th Nov 20253311 AMAQI
5th Nov 20253312 PMAQI
5th Nov 2025331 PMAQI
5th Nov 2025332 PMAQI
5th Nov 2025303 PMAQI
5th Nov 2025304 PMAQI
5th Nov 2025295 PMAQI
5th Nov 2025286 PMAQI
5th Nov 2025277 PMAQI
5th Nov 2025238 PMAQI
5th Nov 2025229 PMAQI
5th Nov 20252210 PMAQI
5th Nov 20251811 PMAQI
6th Nov 20251712 AMAQI
6th Nov 2025171 AMAQI
6th Nov 2025172 AMAQI
6th Nov 2025133 AMAQI
6th Nov 2025114 AMAQI
6th Nov 2025115 AMAQI
6th Nov 2025166 AMAQI

4°C2/8°C

6th Nov 2025177 AMAQI
6th Nov 2025178 AMAQI
6th Nov 2025179 AMAQI
6th Nov 20251710 AMAQI
6th Nov 20252511 AMAQI
6th Nov 20252012 PMAQI
6th Nov 2025171 PMAQI
6th Nov 2025172 PMAQI
6th Nov 2025173 PMAQI
6th Nov 2025174 PMAQI
6th Nov 2025175 PMAQI
6th Nov 2025206 PMAQI
6th Nov 2025227 PMAQI
6th Nov 2025278 PMAQI
6th Nov 2025369 PMAQI
6th Nov 20254710 PMAQI
6th Nov 20255811 PMAQI
7th Nov 20256112 AMAQI
7th Nov 2025541 AMAQI
7th Nov 2025522 AMAQI
7th Nov 2025553 AMAQI
7th Nov 2025424 AMAQI
7th Nov 2025315 AMAQI
7th Nov 2025286 AMAQI

2°C0/3°C

7th Nov 2025327 AMAQI
7th Nov 2025338 AMAQI
7th Nov 2025339 AMAQI
7th Nov 20253310 AMAQI
7th Nov 20253311 AMAQI
7th Nov 20253312 PMAQI
7th Nov 2025331 PMAQI
7th Nov 2025332 PMAQI
7th Nov 2025333 PMAQI
7th Nov 2025334 PMAQI
7th Nov 2025335 PMAQI
7th Nov 2025336 PMAQI
7th Nov 2025337 PMAQI
7th Nov 2025338 PMAQI
7th Nov 2025379 PMAQI
7th Nov 20254310 PMAQI
7th Nov 20254811 PMAQI
8th Nov 20255212 AMAQI
8th Nov 2025531 AMAQI
8th Nov 2025552 AMAQI
8th Nov 2025563 AMAQI
8th Nov 2025504 AMAQI
8th Nov 2025355 AMAQI
8th Nov 2025246 AMAQI

2°C-3/7°C

8th Nov 2025147 AMAQI
8th Nov 2025118 AMAQI
8th Nov 2025119 AMAQI
8th Nov 20252010 AMAQI
8th Nov 20251911 AMAQI
8th Nov 20252012 PMAQI
8th Nov 2025181 PMAQI
8th Nov 2025172 PMAQI
8th Nov 2025173 PMAQI
8th Nov 2025174 PMAQI
8th Nov 2025175 PMAQI
8th Nov 2025216 PMAQI
8th Nov 2025227 PMAQI
8th Nov 2025318 PMAQI
8th Nov 2025379 PMAQI
8th Nov 20253910 PMAQI
8th Nov 20253511 PMAQI
9th Nov 20253312 AMAQI
9th Nov 2025331 AMAQI
9th Nov 2025322 AMAQI
9th Nov 2025283 AMAQI
9th Nov 2025244 AMAQI
9th Nov 2025225 AMAQI
9th Nov 2025186 AMAQI

2°C0/2°C

9th Nov 2025177 AMAQI
9th Nov 2025178 AMAQI
9th Nov 2025179 AMAQI
9th Nov 20251710 AMAQI
9th Nov 20251711 AMAQI
9th Nov 20251212 PMAQI
9th Nov 2025151 PMAQI
9th Nov 2025132 PMAQI
9th Nov 2025113 PMAQI
9th Nov 2025114 PMAQI
9th Nov 2025115 PMAQI
9th Nov 2025116 PMAQI
9th Nov 2025167 PMAQI
9th Nov 2025178 PMAQI
9th Nov 2025179 PMAQI
9th Nov 20251310 PMAQI
9th Nov 20251411 PMAQI
10th Nov 20251712 AMAQI
10th Nov 2025171 AMAQI
10th Nov 2025172 AMAQI
10th Nov 2025173 AMAQI
10th Nov 2025134 AMAQI
10th Nov 2025155 AMAQI
10th Nov 2025156 AMAQI

-2°C-3/0°C

10th Nov 2025117 AMAQI
10th Nov 2025158 AMAQI
10th Nov 2025179 AMAQI
10th Nov 20251710 AMAQI
10th Nov 20251811 AMAQI
10th Nov 20251312 PMAQI
10th Nov 2025111 PMAQI
10th Nov 2025112 PMAQI
10th Nov 2025113 PMAQI
10th Nov 2025114 PMAQI
10th Nov 2025115 PMAQI
10th Nov 2025116 PMAQI
10th Nov 2025117 PMAQI
10th Nov 2025118 PMAQI
10th Nov 2025159 PMAQI
10th Nov 20251710 PMAQI
10th Nov 20252111 PMAQI
11th Nov 20251812 AMAQI
11th Nov 2025171 AMAQI
11th Nov 2025172 AMAQI
11th Nov 2025153 AMAQI
11th Nov 2025124 AMAQI
11th Nov 2025115 AMAQI
11th Nov 2025116 AMAQI

-2°C-4/-1°C

11th Nov 2025117 AMAQI
11th Nov 2025118 AMAQI
11th Nov 2025119 AMAQI
11th Nov 20251210 AMAQI
11th Nov 20251611 AMAQI
11th Nov 20251712 PMAQI
11th Nov 2025171 PMAQI
11th Nov 2025172 PMAQI
11th Nov 2025173 PMAQI
11th Nov 2025174 PMAQI
11th Nov 2025225 PMAQI
11th Nov 2025186 PMAQI
11th Nov 2025177 PMAQI
11th Nov 2025128 PMAQI
11th Nov 2025119 PMAQI
11th Nov 20251110 PMAQI
11th Nov 20251111 PMAQI
12th Nov 20252412 AMAQI
12th Nov 2025251 AMAQI
12th Nov 2025232 AMAQI
12th Nov 2025133 AMAQI
12th Nov 2025114 AMAQI
12th Nov 2025115 AMAQI
12th Nov 2025166 AMAQI

-3°C-6/0°C

12th Nov 2025207 AMAQI
12th Nov 2025228 AMAQI
12th Nov 2025279 AMAQI
12th Nov 20253710 AMAQI
12th Nov 20254311 AMAQI
12th Nov 20255112 PMAQI
12th Nov 2025551 PMAQI
12th Nov 2025542 PMAQI
12th Nov 2025423 PMAQI
12th Nov 2025444 PMAQI
12th Nov 2025495 PMAQI
12th Nov 2025506 PMAQI
12th Nov 2025507 PMAQI
12th Nov 2025508 PMAQI
12th Nov 2025509 PMAQI
12th Nov 20255510 PMAQI
12th Nov 20255611 PMAQI
13th Nov 20255412 AMAQI
13th Nov 2025481 AMAQI
13th Nov 2025402 AMAQI
13th Nov 2025273 AMAQI
13th Nov 2025224 AMAQI
13th Nov 2025185 AMAQI
13th Nov 2025176 AMAQI

0°C-3/2°C

13th Nov 2025177 AMAQI
13th Nov 2025178 AMAQI
13th Nov 2025179 AMAQI
13th Nov 20251710 AMAQI
13th Nov 20251811 AMAQI
13th Nov 20252312 PMAQI
13th Nov 2025171 PMAQI
13th Nov 2025172 PMAQI
13th Nov 2025173 PMAQI
13th Nov 2025174 PMAQI
13th Nov 2025175 PMAQI
13th Nov 2025226 PMAQI
13th Nov 2025137 PMAQI
13th Nov 2025118 PMAQI
13th Nov 2025159 PMAQI
13th Nov 20251710 PMAQI
13th Nov 20251211 PMAQI
14th Nov 20251112 AMAQI
14th Nov 2025111 AMAQI
14th Nov 2025112 AMAQI
14th Nov 2025183 AMAQI
14th Nov 2025174 AMAQI
14th Nov 2025175 AMAQI
14th Nov 2025136 AMAQI

1°C-1/4°C

14th Nov 2025117 AMAQI
14th Nov 2025118 AMAQI
14th Nov 2025159 AMAQI
14th Nov 20251710 AMAQI
14th Nov 20252911 AMAQI
14th Nov 20252012 PMAQI
14th Nov 2025491 PMAQI
14th Nov 2025352 PMAQI
14th Nov 2025193 PMAQI
14th Nov 2025214 PMAQI
14th Nov 2025225 PMAQI
14th Nov 2025186 PMAQI
14th Nov 2025307 PMAQI
14th Nov 2025248 PMAQI
14th Nov 2025189 PMAQI
14th Nov 20251710 PMAQI
14th Nov 20251711 PMAQI
15th Nov 20251712 AMAQI
15th Nov 2025171 AMAQI
15th Nov 2025172 AMAQI
15th Nov 2025173 AMAQI
15th Nov 2025174 AMAQI
15th Nov 2025135 AMAQI
15th Nov 2025116 AMAQI

2°C0/7°C

15th Nov 2025117 AMAQI
15th Nov 2025388 AMAQI
15th Nov 2025429 AMAQI
15th Nov 20253210 AMAQI
15th Nov 20251711 AMAQI
15th Nov 20251112 PMAQI
15th Nov 2025161 PMAQI
15th Nov 2025132 PMAQI
15th Nov 2025113 PMAQI
15th Nov 2025114 PMAQI
15th Nov 2025165 PMAQI
15th Nov 2025216 PMAQI
15th Nov 2025227 PMAQI
15th Nov 2025228 PMAQI
15th Nov 2025229 PMAQI
15th Nov 20252210 PMAQI
15th Nov 20252211 PMAQI
16th Nov 20252212 AMAQI
16th Nov 2025221 AMAQI
16th Nov 2025262 AMAQI
16th Nov 2025283 AMAQI
16th Nov 2025324 AMAQI
16th Nov 2025305 AMAQI
16th Nov 2025196 AMAQI

0°C-2/2°C

16th Nov 2025177 AMAQI
16th Nov 2025178 AMAQI
16th Nov 2025179 AMAQI
16th Nov 20251710 AMAQI
16th Nov 20251711 AMAQI
16th Nov 20251712 PMAQI
16th Nov 2025171 PMAQI
16th Nov 2025172 PMAQI
16th Nov 2025123 PMAQI
16th Nov 2025164 PMAQI
16th Nov 2025175 PMAQI
16th Nov 2025126 PMAQI
16th Nov 2025137 PMAQI
16th Nov 2025168 PMAQI
16th Nov 2025139 PMAQI
16th Nov 20251610 PMAQI
16th Nov 20251711 PMAQI
17th Nov 20251712 AMAQI
17th Nov 2025131 AMAQI
17th Nov 2025112 AMAQI
17th Nov 2025113 AMAQI
17th Nov 2025114 AMAQI
17th Nov 2025155 AMAQI
17th Nov 2025136 AMAQI

0°C-3/1°C

17th Nov 2025117 AMAQI
17th Nov 2025118 AMAQI
17th Nov 2025119 AMAQI
17th Nov 20251310 AMAQI
17th Nov 20251211 AMAQI
17th Nov 20251612 PMAQI
17th Nov 2025141 PMAQI
17th Nov 2025172 PMAQI
17th Nov 2025173 PMAQI
17th Nov 2025174 PMAQI
17th Nov 2025175 PMAQI
17th Nov 2025176 PMAQI
17th Nov 2025177 PMAQI
17th Nov 2025178 PMAQI
17th Nov 2025179 PMAQI
17th Nov 20251710 PMAQI
17th Nov 20251711 PMAQI
18th Nov 20251712 AMAQI
18th Nov 2025171 AMAQI
18th Nov 2025122 AMAQI
18th Nov 2025113 AMAQI
18th Nov 2025114 AMAQI
18th Nov 2025115 AMAQI
18th Nov 2025116 AMAQI

-2°C-4/0°C

18th Nov 2025117 AMAQI
18th Nov 2025118 AMAQI
18th Nov 2025119 AMAQI
18th Nov 20251110 AMAQI
18th Nov 20251111 AMAQI
18th Nov 20251112 PMAQI
18th Nov 2025151 PMAQI
18th Nov 2025182 PMAQI
18th Nov 2025133 PMAQI
18th Nov 2025114 PMAQI
18th Nov 2025115 PMAQI
18th Nov 2025136 PMAQI
18th Nov 2025147 PMAQI
18th Nov 2025168 PMAQI
18th Nov 2025189 PMAQI
18th Nov 20251810 PMAQI
18th Nov 20251811 PMAQI
19th Nov 20252512 AMAQI
19th Nov 2025281 AMAQI
19th Nov 2025322 AMAQI
19th Nov 2025243 AMAQI
19th Nov 2025224 AMAQI
19th Nov 2025185 AMAQI
19th Nov 2025136 AMAQI

-1°C-2/0°C

19th Nov 2025117 AMAQI
19th Nov 2025128 AMAQI
19th Nov 2025159 AMAQI
19th Nov 20251410 AMAQI
19th Nov 20252011 AMAQI
19th Nov 20252212 PMAQI
19th Nov 2025131 PMAQI
19th Nov 2025112 PMAQI
19th Nov 2025113 PMAQI
19th Nov 2025164 PMAQI
19th Nov 2025175 PMAQI
19th Nov 2025226 PMAQI
19th Nov 2025247 PMAQI
19th Nov 2025288 PMAQI
19th Nov 2025329 PMAQI
19th Nov 20253310 PMAQI
19th Nov 20253411 PMAQI
20th Nov 20253412 AMAQI
20th Nov 2025291 AMAQI
20th Nov 2025272 AMAQI
20th Nov 2025283 AMAQI
20th Nov 2025284 AMAQI
20th Nov 2025235 AMAQI
20th Nov 2025226 AMAQI

-4°C-7/-1°C

20th Nov 2025227 AMAQI
20th Nov 2025268 AMAQI
20th Nov 2025289 AMAQI
20th Nov 20252810 AMAQI
20th Nov 20253711 AMAQI
20th Nov 20254312 PMAQI
20th Nov 2025441 PMAQI
20th Nov 2025442 PMAQI
20th Nov 2025513 PMAQI
20th Nov 2025534 PMAQI
20th Nov 2025455 PMAQI
20th Nov 2025496 PMAQI
20th Nov 2025507 PMAQI
20th Nov 2025508 PMAQI
20th Nov 2025519 PMAQI
20th Nov 20256510 PMAQI
20th Nov 20256211 PMAQI
21st Nov 20256612 AMAQI
21st Nov 2025651 AMAQI
21st Nov 2025672 AMAQI
21st Nov 2025703 AMAQI
21st Nov 2025794 AMAQI
21st Nov 2025805 AMAQI
21st Nov 2025816 AMAQI

-3°C-3/-2°C

21st Nov 2025757 AMAQI
21st Nov 2025708 AMAQI
21st Nov 2025719 AMAQI
21st Nov 20257110 AMAQI
21st Nov 20257211 AMAQI
21st Nov 20257012 PMAQI
21st Nov 2025661 PMAQI
21st Nov 2025712 PMAQI
21st Nov 2025803 PMAQI
21st Nov 2025834 PMAQI
21st Nov 2025865 PMAQI
21st Nov 2025906 PMAQI
21st Nov 2025887 PMAQI
21st Nov 2025628 PMAQI
21st Nov 2025469 PMAQI
21st Nov 20254010 PMAQI
21st Nov 20253911 PMAQI
22nd Nov 20253112 AMAQI
22nd Nov 2025281 AMAQI
22nd Nov 2025232 AMAQI
22nd Nov 2025223 AMAQI
22nd Nov 2025224 AMAQI
22nd Nov 2025225 AMAQI
22nd Nov 2025186 AMAQI

0°C-4/5°C

22nd Nov 2025177 AMAQI
22nd Nov 2025178 AMAQI
22nd Nov 2025179 AMAQI
22nd Nov 20251710 AMAQI
22nd Nov 20251711 AMAQI
22nd Nov 20251712 PMAQI
22nd Nov 2025171 PMAQI
22nd Nov 2025172 PMAQI
22nd Nov 2025173 PMAQI
22nd Nov 2025224 PMAQI
22nd Nov 2025225 PMAQI
22nd Nov 2025276 PMAQI
22nd Nov 2025397 PMAQI
22nd Nov 2025268 PMAQI
22nd Nov 2025279 PMAQI
22nd Nov 20252810 PMAQI
22nd Nov 20252811 PMAQI
23rd Nov 20252812 AMAQI
23rd Nov 2025241 AMAQI
23rd Nov 2025272 AMAQI
23rd Nov 2025393 AMAQI
23rd Nov 2025444 AMAQI
23rd Nov 2025485 AMAQI
23rd Nov 2025526 AMAQI

0°C-3/5°C

23rd Nov 2025477 AMAQI
23rd Nov 2025448 AMAQI
23rd Nov 2025449 AMAQI
23rd Nov 20254410 AMAQI
23rd Nov 20254011 AMAQI
23rd Nov 20254212 PMAQI
23rd Nov 2025511 PMAQI
23rd Nov 2025532 PMAQI
23rd Nov 2025533 PMAQI
23rd Nov 2025464 PMAQI
23rd Nov 2025505 PMAQI
23rd Nov 2025536 PMAQI
23rd Nov 2025537 PMAQI
23rd Nov 2025558 PMAQI
23rd Nov 2025579 PMAQI
23rd Nov 20255910 PMAQI
23rd Nov 20255911 PMAQI
24th Nov 20256112 AMAQI
24th Nov 2025641 AMAQI
24th Nov 2025622 AMAQI
24th Nov 2025583 AMAQI
24th Nov 2025564 AMAQI
24th Nov 2025515 AMAQI
24th Nov 2025386 AMAQI

-1°C-4/1°C

24th Nov 2025297 AMAQI
24th Nov 2025248 AMAQI
24th Nov 2025189 AMAQI
24th Nov 20251710 AMAQI
24th Nov 20251711 AMAQI
24th Nov 20251712 PMAQI
24th Nov 2025131 PMAQI
24th Nov 2025112 PMAQI
24th Nov 2025113 PMAQI
24th Nov 2025164 PMAQI
24th Nov 2025175 PMAQI
24th Nov 2025176 PMAQI
24th Nov 2025227 PMAQI
24th Nov 2025228 PMAQI
24th Nov 2025279 PMAQI
24th Nov 20252810 PMAQI
24th Nov 20251911 PMAQI
25th Nov 20251712 AMAQI
25th Nov 2025171 AMAQI
25th Nov 2025172 AMAQI
25th Nov 2025173 AMAQI
25th Nov 2025174 AMAQI
25th Nov 2025175 AMAQI
25th Nov 2025216 AMAQI

2°C-1/3°C

25th Nov 2025277 AMAQI
25th Nov 2025238 AMAQI
25th Nov 2025319 AMAQI
25th Nov 20253310 AMAQI
25th Nov 20253311 AMAQI
25th Nov 20253712 PMAQI
25th Nov 2025391 PMAQI
25th Nov 2025392 PMAQI
25th Nov 2025393 PMAQI
25th Nov 2025434 PMAQI
25th Nov 2025405 PMAQI
25th Nov 2025396 PMAQI
25th Nov 2025437 PMAQI
25th Nov 2025418 PMAQI
25th Nov 2025359 PMAQI
25th Nov 20253710 PMAQI
25th Nov 20253911 PMAQI
26th Nov 20254612 AMAQI
26th Nov 2025521 AMAQI
26th Nov 2025532 AMAQI
26th Nov 2025513 AMAQI
26th Nov 2025544 AMAQI
26th Nov 2025565 AMAQI
26th Nov 2025566 AMAQI

3°C0/11°C

26th Nov 2025557 AMAQI
26th Nov 2025538 AMAQI
26th Nov 2025539 AMAQI
26th Nov 20255110 AMAQI
26th Nov 20254511 AMAQI
26th Nov 20254012 PMAQI
26th Nov 2025391 PMAQI
26th Nov 2025392 PMAQI
26th Nov 2025433 PMAQI
26th Nov 2025494 PMAQI
26th Nov 2025505 PMAQI
26th Nov 2025546 PMAQI
26th Nov 2025557 PMAQI
26th Nov 2025568 PMAQI
26th Nov 2025469 PMAQI
26th Nov 20254010 PMAQI
26th Nov 20253111 PMAQI
27th Nov 20252312 AMAQI
27th Nov 2025221 AMAQI
27th Nov 2025222 AMAQI
27th Nov 2025223 AMAQI
27th Nov 2025184 AMAQI
27th Nov 2025175 AMAQI
27th Nov 2025176 AMAQI

3°C2/5°C

27th Nov 2025177 AMAQI
7 AM
27th Nov 2025188 AMAQI
27th Nov 2025179 AMAQI
27th Nov 20251210 AMAQI
27th Nov 20251511 AMAQI
11 AM
27th Nov 20251712 PMAQI
27th Nov 2025131 PMAQI
27th Nov 2025112 PMAQI
27th Nov 2025113 PMAQI
4 PM
11 PM
6 AM

--°C/°C

Day time
Avg. Highest Time
11 AM - 2 PM

25AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
7 AM

21AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 2 PM (Avg. 25), while the lowest AQI was between 7 AM to 7 AM (Avg. 21).
Night time
Avg. Highest Time
12 AM

29AQI

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

23AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 29), while the lowest AQI was between 6 AM to 6 AM (Avg. 23).

2025 Days Vs Air Quality

Lower Town, Ottawa, Ontario, Canada

2025

91%

223

9%

22

Total number of days with different AQI categories in last 331 days in 2025 (34 days remaining)

Good
223 Days
Moderate
22 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 91%

Health Risk Level:

Very Low

In 2025, 91% of 331 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

Lower Town, 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
2nd January 2025
3rd January 2025
4th January 2025
5th January 2025
6th January 2025
7th January 2025
8th January 2025
9th January 2025
10th January 2025
11th January 2025
12th January 2025
13th January 2025
14th January 2025
15th January 2025
16th January 2025
17th January 2025
18th January 2025
19th January 2025
20th January 2025
21st January 2025
22nd January 2025
23rd January 2025
24th January 2025
25th January 2025
26th January 2025
27th January 2025
28th January 2025
29th January 2025
30th January 2025
31st January 2025
1st February 2025
2nd February 2025
3rd February 2025
4th February 2025
5th February 2025
6th February 2025
7th February 2025
8th February 2025
9th February 2025
10th February 2025
11th February 2025
12th February 2025
13th February 2025
14th February 2025
15th February 2025
16th February 2025
17th February 2025
18th February 2025
19th February 2025
20th February 2025
21st February 2025
22nd February 2025
23rd February 2025
24th February 2025
25th February 2025
26th February 2025
27th February 2025
28th February 2025
1st March 2025
2nd March 2025
3rd March 2025
4th March 2025
5th March 2025
6th March 2025
7th March 2025
8th March 2025
9th March 2025
10th March 2025
11th March 2025
12th March 2025
13th March 2025
14th March 2025
15th March 2025
16th March 2025
17th March 2025
18th March 2025
19th March 2025
20th March 2025
21st March 2025
22nd March 2025
23rd March 2025
24th March 2025
25th March 2025
26th March 2025
27th March 2025
18AQI
28th March 2025
19AQI
29th March 2025
18AQI
30th March 2025
21AQI
31st March 2025
26AQI
1st April 2025
16AQI
2nd April 2025
19AQI
3rd April 2025
24AQI
4th April 2025
17AQI
5th April 2025
21AQI
6th April 2025
19AQI
7th April 2025
21AQI
8th April 2025
18AQI
9th April 2025
16AQI
10th April 2025
25AQI
11th April 2025
35AQI
12th April 2025
29AQI
13th April 2025
30AQI
14th April 2025
28AQI
15th April 2025
24AQI
16th April 2025
15AQI
17th April 2025
16AQI
18th April 2025
30AQI
19th April 2025
42AQI
20th April 2025
15AQI
21st April 2025
21AQI
22nd April 2025
16AQI
23rd April 2025
13AQI
24th April 2025
18AQI
25th April 2025
21AQI
26th April 2025
16AQI
27th April 2025
12AQI
28th April 2025
17AQI
29th April 2025
26AQI
30th April 2025
15AQI
1st May 2025
23AQI
2nd May 2025
23AQI
3rd May 2025
14AQI
4th May 2025
17AQI
5th May 2025
17AQI
6th May 2025
18AQI
7th May 2025
19AQI
8th May 2025
15AQI
9th May 2025
17AQI
10th May 2025
18AQI
11th May 2025
16AQI
12th May 2025
19AQI
13th May 2025
28AQI
14th May 2025
31AQI
15th May 2025
28AQI
16th May 2025
35AQI
17th May 2025
36AQI
18th May 2025
15AQI
19th May 2025
12AQI
20th May 2025
12AQI
21st May 2025
20AQI
22nd May 2025
15AQI
23rd May 2025
16AQI
24th May 2025
12AQI
25th May 2025
16AQI
26th May 2025
22AQI
27th May 2025
23AQI
28th May 2025
27AQI
29th May 2025
22AQI
30th May 2025
23AQI
31st May 2025
24AQI
1st June 2025
12AQI
2nd June 2025
17AQI
3rd June 2025
28AQI
4th June 2025
45AQI
5th June 2025
46AQI
6th June 2025
53AQI
7th June 2025
59AQI
8th June 2025
57AQI
9th June 2025
58AQI
10th June 2025
44AQI
11th June 2025
51AQI
12th June 2025
54AQI
13th June 2025
26AQI
14th June 2025
23AQI
15th June 2025
29AQI
16th June 2025
37AQI
17th June 2025
31AQI
18th June 2025
31AQI
19th June 2025
34AQI
20th June 2025
20AQI
21st June 2025
26AQI
22nd June 2025
28AQI
23rd June 2025
42AQI
24th June 2025
51AQI
25th June 2025
42AQI
26th June 2025
25AQI
27th June 2025
26AQI
28th June 2025
28AQI
29th June 2025
21AQI
30th June 2025
30AQI
1st July 2025
36AQI
2nd July 2025
34AQI
3rd July 2025
45AQI
4th July 2025
26AQI
5th July 2025
28AQI
6th July 2025
46AQI
7th July 2025
46AQI
8th July 2025
27AQI
9th July 2025
27AQI
10th July 2025
34AQI
11th July 2025
40AQI
12th July 2025
48AQI
13th July 2025
44AQI
14th July 2025
44AQI
15th July 2025
46AQI
16th July 2025
54AQI
17th July 2025
50AQI
18th July 2025
24AQI
19th July 2025
33AQI
20th July 2025
34AQI
21st July 2025
28AQI
22nd July 2025
18AQI
23rd July 2025
23AQI
24th July 2025
28AQI
25th July 2025
33AQI
26th July 2025
48AQI
27th July 2025
58AQI
28th July 2025
60AQI
29th July 2025
50AQI
30th July 2025
61AQI
31st July 2025
52AQI
1st August 2025
22AQI
2nd August 2025
34AQI
3rd August 2025
58AQI
4th August 2025
70AQI
5th August 2025
35AQI
6th August 2025
28AQI
7th August 2025
39AQI
8th August 2025
53AQI
9th August 2025
60AQI
10th August 2025
64AQI
11th August 2025
57AQI
12th August 2025
53AQI
13th August 2025
47AQI
14th August 2025
40AQI
15th August 2025
21AQI
16th August 2025
35AQI
17th August 2025
29AQI
18th August 2025
15AQI
19th August 2025
18AQI
20th August 2025
21AQI
21st August 2025
21AQI
22nd August 2025
25AQI
23rd August 2025
27AQI
24th August 2025
27AQI
25th August 2025
20AQI
26th August 2025
15AQI
27th August 2025
19AQI
28th August 2025
23AQI
29th August 2025
18AQI
30th August 2025
17AQI
31st August 2025
22AQI
1st September 2025
26AQI
2nd September 2025
33AQI
3rd September 2025
30AQI
4th September 2025
26AQI
5th September 2025
29AQI
6th September 2025
25AQI
7th September 2025
19AQI
8th September 2025
19AQI
9th September 2025
20AQI
10th September 2025
25AQI
11th September 2025
28AQI
12th September 2025
22AQI
13th September 2025
32AQI
14th September 2025
36AQI
15th September 2025
26AQI
16th September 2025
30AQI
17th September 2025
32AQI
18th September 2025
32AQI
19th September 2025
17AQI
20th September 2025
16AQI
21st September 2025
23AQI
22nd September 2025
26AQI
23rd September 2025
33AQI
24th September 2025
32AQI
25th September 2025
21AQI
26th September 2025
22AQI
27th September 2025
22AQI
28th September 2025
31AQI
29th September 2025
40AQI
30th September 2025
29AQI
1st October 2025
24AQI
2nd October 2025
43AQI
3rd October 2025
45AQI
4th October 2025
48AQI
5th October 2025
57AQI
6th October 2025
53AQI
7th October 2025
38AQI
8th October 2025
29AQI
9th October 2025
31AQI
10th October 2025
44AQI
11th October 2025
47AQI
12th October 2025
42AQI
13th October 2025
45AQI
14th October 2025
45AQI
15th October 2025
36AQI
16th October 2025
38AQI
17th October 2025
40AQI
18th October 2025
41AQI
19th October 2025
43AQI
20th October 2025
34AQI
21st October 2025
23AQI
22nd October 2025
24AQI
23rd October 2025
19AQI
24th October 2025
16AQI
25th October 2025
15AQI
26th October 2025
19AQI
27th October 2025
19AQI
28th October 2025
24AQI
29th October 2025
27AQI
30th October 2025
30AQI
31st October 2025
14AQI
1st November 2025
16AQI
2nd November 2025
16AQI
3rd November 2025
22AQI
4th November 2025
14AQI
5th November 2025
21AQI
6th November 2025
22AQI
7th November 2025
39AQI
8th November 2025
32AQI
9th November 2025
19AQI
10th November 2025
14AQI
11th November 2025
14AQI
12th November 2025
37AQI
13th November 2025
22AQI
14th November 2025
20AQI
15th November 2025
19AQI
16th November 2025
19AQI
17th November 2025
15AQI
18th November 2025
14AQI
19th November 2025
22AQI
20th November 2025
39AQI
21st November 2025
70AQI
22nd November 2025
24AQI
23rd November 2025
47AQI
24th November 2025
32AQI
25th November 2025
30AQI
26th November 2025
49AQI
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

20AQI

21AQI

20AQI

36AQI

40AQI

33AQI

27AQI

34AQI

26AQI

No. of days

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

202530AQI

5
30
31
23
7
26
5
24
7
30
29
2
25
1
223
22

Highest AQI recorded in

July

40AQI

Lowest AQI recorded in

March

20AQI

Most & Least Polluted Years Over the Last 1 Years

Most Polluted Year Recorded
2025(Avg.)
30AQI
Least Polluted Year Recorded
2025(Avg.)
30AQI

Lower Town's annual 2025 AQI (30) shows an average percentage change of NaN% (improved AQI) compared to previous years: .