Impasse Croiseur Montcalm, Brest, Bretagne, France 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+
October Air Quality Analysis
Impasse Croiseur Montcalm, Brest, Bretagne, France
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Oct 2025
70AQILowest AQI recorded on
4th Oct 2023
3AQISame Day Analysis (11th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 60 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Oct - 12th Oct 2025
Impasse Croiseur Montcalm, Brest, Bretagne, France
AQI
Day
Night
.
8 AM11th Oct 2025
8 PM
7 AM12th Oct 2025
Day time
Avg. Highest Time
8AM11th Oct
63AQI
Avg. Lowest Time
7PM11th Oct
54AQI
Night time
Avg. Highest Time
10PM11th Oct
62AQI
Avg. Lowest Time
8PM11th Oct
53AQI
In the last 24 hours,
Impasse Croiseur Montcalm's AQI reached its highest point of 63 at 8 AM during the Day, while the lowest point, undefined, was recorded at 7 AM during the Night between 11th Oct and 12th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Impasse Croiseur Montcalm, Brest, Bretagne, France
SepOct
12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
12th Sep 2025188 AMAQI
12th Sep 2025209 AMAQI
12th Sep 20252610 AMAQI
12th Sep 20251811 AMAQI
12th Sep 20251812 PMAQI
12th Sep 2025171 PMAQI
12th Sep 2025172 PMAQI
12th Sep 2025183 PMAQI
12th Sep 2025184 PMAQI
12th Sep 2025195 PMAQI
12th Sep 2025186 PMAQI
12th Sep 2025177 PMAQI
12th Sep 2025178 PMAQI
12th Sep 2025189 PMAQI
12th Sep 20251910 PMAQI
12th Sep 20251911 PMAQI
13th Sep 20251812 AMAQI
13th Sep 2025191 AMAQI
13th Sep 2025182 AMAQI
13th Sep 2025183 AMAQI
13th Sep 2025184 AMAQI
13th Sep 2025175 AMAQI
13th Sep 2025166 AMAQI
13th Sep 2025167 AMAQI
15°C13/17°C
13th Sep 2025168 AMAQI
13th Sep 2025189 AMAQI
13th Sep 20251610 AMAQI
13th Sep 20251511 AMAQI
13th Sep 20251712 PMAQI
13th Sep 2025181 PMAQI
13th Sep 2025182 PMAQI
13th Sep 2025173 PMAQI
13th Sep 2025184 PMAQI
13th Sep 2025175 PMAQI
13th Sep 2025176 PMAQI
13th Sep 2025187 PMAQI
13th Sep 2025188 PMAQI
13th Sep 2025189 PMAQI
13th Sep 20251810 PMAQI
13th Sep 20251811 PMAQI
14th Sep 20251812 AMAQI
14th Sep 2025171 AMAQI
14th Sep 2025182 AMAQI
14th Sep 2025183 AMAQI
14th Sep 2025184 AMAQI
14th Sep 2025185 AMAQI
14th Sep 2025176 AMAQI
14th Sep 2025177 AMAQI
15°C13/17°C
14th Sep 2025178 AMAQI
14th Sep 2025159 AMAQI
14th Sep 20252010 AMAQI
14th Sep 20251511 AMAQI
14th Sep 20251412 PMAQI
14th Sep 2025161 PMAQI
14th Sep 2025162 PMAQI
14th Sep 2025183 PMAQI
14th Sep 2025164 PMAQI
14th Sep 2025185 PMAQI
14th Sep 2025176 PMAQI
14th Sep 2025177 PMAQI
14th Sep 2025178 PMAQI
14th Sep 2025199 PMAQI
14th Sep 20251810 PMAQI
14th Sep 20251811 PMAQI
15th Sep 20251712 AMAQI
15th Sep 2025181 AMAQI
15th Sep 2025242 AMAQI
15th Sep 2025223 AMAQI
15th Sep 2025214 AMAQI
15th Sep 2025255 AMAQI
15th Sep 2025236 AMAQI
15th Sep 2025237 AMAQI
16°C13/20°C
15th Sep 2025258 AMAQI
15th Sep 2025279 AMAQI
15th Sep 20252910 AMAQI
15th Sep 20252811 AMAQI
15th Sep 20252712 PMAQI
15th Sep 2025281 PMAQI
15th Sep 2025242 PMAQI
15th Sep 2025223 PMAQI
15th Sep 2025224 PMAQI
15th Sep 2025205 PMAQI
15th Sep 2025246 PMAQI
15th Sep 2025237 PMAQI
15th Sep 2025218 PMAQI
15th Sep 2025219 PMAQI
15th Sep 20252210 PMAQI
15th Sep 20252411 PMAQI
16th Sep 20252412 AMAQI
16th Sep 2025221 AMAQI
16th Sep 2025212 AMAQI
16th Sep 2025213 AMAQI
16th Sep 2025214 AMAQI
16th Sep 2025225 AMAQI
16th Sep 2025216 AMAQI
16th Sep 2025207 AMAQI
15°C14/17°C
16th Sep 2025208 AMAQI
16th Sep 2025249 AMAQI
16th Sep 20252410 AMAQI
16th Sep 20252511 AMAQI
16th Sep 20252312 PMAQI
16th Sep 2025211 PMAQI
16th Sep 2025212 PMAQI
16th Sep 2025203 PMAQI
16th Sep 2025194 PMAQI
16th Sep 2025195 PMAQI
16th Sep 2025206 PMAQI
16th Sep 2025217 PMAQI
16th Sep 2025208 PMAQI
16th Sep 2025219 PMAQI
16th Sep 20252210 PMAQI
16th Sep 20252211 PMAQI
17th Sep 20252212 AMAQI
17th Sep 2025221 AMAQI
17th Sep 2025192 AMAQI
17th Sep 2025183 AMAQI
17th Sep 2025174 AMAQI
17th Sep 2025175 AMAQI
17th Sep 2025166 AMAQI
17th Sep 2025187 AMAQI
15°C13/17°C
17th Sep 2025188 AMAQI
17th Sep 2025189 AMAQI
17th Sep 20251810 AMAQI
17th Sep 20251811 AMAQI
17th Sep 20252112 PMAQI
17th Sep 2025191 PMAQI
17th Sep 2025192 PMAQI
17th Sep 2025183 PMAQI
17th Sep 2025184 PMAQI
17th Sep 2025185 PMAQI
17th Sep 2025186 PMAQI
17th Sep 2025187 PMAQI
17th Sep 2025188 PMAQI
17th Sep 2025189 PMAQI
17th Sep 20251810 PMAQI
17th Sep 20251911 PMAQI
18th Sep 20251812 AMAQI
18th Sep 2025191 AMAQI
18th Sep 2025142 AMAQI
18th Sep 2025123 AMAQI
18th Sep 2025124 AMAQI
18th Sep 2025115 AMAQI
18th Sep 2025146 AMAQI
18th Sep 2025167 AMAQI
17°C15/18°C
18th Sep 2025168 AMAQI
18th Sep 2025179 AMAQI
18th Sep 20251610 AMAQI
18th Sep 20251511 AMAQI
18th Sep 20251512 PMAQI
18th Sep 2025151 PMAQI
18th Sep 2025162 PMAQI
18th Sep 2025153 PMAQI
18th Sep 2025164 PMAQI
18th Sep 2025165 PMAQI
18th Sep 2025176 PMAQI
18th Sep 2025167 PMAQI
18th Sep 2025168 PMAQI
18th Sep 2025179 PMAQI
18th Sep 20251810 PMAQI
18th Sep 20252011 PMAQI
19th Sep 20251712 AMAQI
19th Sep 2025171 AMAQI
19th Sep 2025152 AMAQI
19th Sep 2025173 AMAQI
19th Sep 2025184 AMAQI
19th Sep 2025225 AMAQI
19th Sep 2025166 AMAQI
19th Sep 2025167 AMAQI
18°C15/20°C
19th Sep 2025168 AMAQI
19th Sep 2025169 AMAQI
19th Sep 20251610 AMAQI
19th Sep 20251811 AMAQI
19th Sep 20251712 PMAQI
19th Sep 2025151 PMAQI
19th Sep 2025182 PMAQI
19th Sep 2025183 PMAQI
19th Sep 2025184 PMAQI
19th Sep 2025185 PMAQI
19th Sep 2025186 PMAQI
19th Sep 2025187 PMAQI
19th Sep 2025188 PMAQI
19th Sep 2025189 PMAQI
19th Sep 20251910 PMAQI
19th Sep 20251811 PMAQI
20th Sep 20251812 AMAQI
20th Sep 2025181 AMAQI
20th Sep 2025172 AMAQI
20th Sep 2025193 AMAQI
20th Sep 2025184 AMAQI
20th Sep 2025185 AMAQI
20th Sep 2025196 AMAQI
20th Sep 2025207 AMAQI
16°C13/20°C
20th Sep 2025218 AMAQI
20th Sep 2025239 AMAQI
20th Sep 20252210 AMAQI
20th Sep 20252611 AMAQI
20th Sep 20252112 PMAQI
20th Sep 2025191 PMAQI
20th Sep 2025202 PMAQI
20th Sep 2025193 PMAQI
20th Sep 2025204 PMAQI
20th Sep 2025195 PMAQI
20th Sep 2025186 PMAQI
20th Sep 2025187 PMAQI
20th Sep 2025188 PMAQI
20th Sep 2025199 PMAQI
20th Sep 20252110 PMAQI
20th Sep 20252011 PMAQI
21st Sep 20252012 AMAQI
21st Sep 2025221 AMAQI
21st Sep 2025142 AMAQI
21st Sep 2025143 AMAQI
21st Sep 2025134 AMAQI
21st Sep 2025145 AMAQI
21st Sep 2025166 AMAQI
21st Sep 2025157 AMAQI
15°C12/16°C
21st Sep 2025158 AMAQI
21st Sep 2025179 AMAQI
21st Sep 20251610 AMAQI
21st Sep 20251611 AMAQI
21st Sep 20251712 PMAQI
21st Sep 2025161 PMAQI
21st Sep 2025172 PMAQI
21st Sep 2025173 PMAQI
21st Sep 2025164 PMAQI
21st Sep 2025165 PMAQI
21st Sep 2025176 PMAQI
21st Sep 2025167 PMAQI
21st Sep 2025168 PMAQI
21st Sep 2025179 PMAQI
21st Sep 20251710 PMAQI
21st Sep 20251611 PMAQI
22nd Sep 20251712 AMAQI
22nd Sep 2025171 AMAQI
22nd Sep 2025142 AMAQI
22nd Sep 2025133 AMAQI
22nd Sep 2025124 AMAQI
22nd Sep 2025115 AMAQI
22nd Sep 2025146 AMAQI
22nd Sep 2025137 AMAQI
13°C11/16°C
22nd Sep 2025148 AMAQI
22nd Sep 2025159 AMAQI
22nd Sep 20251410 AMAQI
22nd Sep 20251511 AMAQI
22nd Sep 20251412 PMAQI
22nd Sep 2025151 PMAQI
22nd Sep 2025162 PMAQI
22nd Sep 2025153 PMAQI
22nd Sep 2025154 PMAQI
22nd Sep 2025155 PMAQI
22nd Sep 2025166 PMAQI
22nd Sep 2025167 PMAQI
22nd Sep 2025168 PMAQI
22nd Sep 2025169 PMAQI
22nd Sep 20251610 PMAQI
22nd Sep 20251611 PMAQI
23rd Sep 20251512 AMAQI
23rd Sep 2025161 AMAQI
23rd Sep 2025142 AMAQI
23rd Sep 2025153 AMAQI
23rd Sep 2025154 AMAQI
23rd Sep 2025145 AMAQI
23rd Sep 2025126 AMAQI
23rd Sep 2025137 AMAQI
12°C10/14°C
23rd Sep 2025148 AMAQI
23rd Sep 2025139 AMAQI
23rd Sep 20251610 AMAQI
23rd Sep 20251611 AMAQI
23rd Sep 20252212 PMAQI
23rd Sep 2025151 PMAQI
23rd Sep 2025162 PMAQI
23rd Sep 2025163 PMAQI
23rd Sep 2025154 PMAQI
23rd Sep 2025145 PMAQI
23rd Sep 2025166 PMAQI
23rd Sep 2025157 PMAQI
23rd Sep 2025168 PMAQI
23rd Sep 2025169 PMAQI
23rd Sep 20251610 PMAQI
23rd Sep 20251611 PMAQI
24th Sep 20251712 AMAQI
24th Sep 2025161 AMAQI
24th Sep 2025132 AMAQI
24th Sep 2025123 AMAQI
24th Sep 2025144 AMAQI
24th Sep 2025115 AMAQI
24th Sep 2025146 AMAQI
24th Sep 2025157 AMAQI
12°C9/15°C
24th Sep 2025148 AMAQI
24th Sep 2025149 AMAQI
24th Sep 20251610 AMAQI
24th Sep 20251611 AMAQI
24th Sep 20251512 PMAQI
24th Sep 2025141 PMAQI
24th Sep 2025162 PMAQI
24th Sep 2025153 PMAQI
24th Sep 2025174 PMAQI
24th Sep 2025175 PMAQI
24th Sep 2025166 PMAQI
24th Sep 2025177 PMAQI
24th Sep 2025168 PMAQI
24th Sep 2025169 PMAQI
24th Sep 20251710 PMAQI
24th Sep 20251711 PMAQI
25th Sep 20251912 AMAQI
25th Sep 2025171 AMAQI
25th Sep 2025142 AMAQI
25th Sep 2025143 AMAQI
25th Sep 2025114 AMAQI
25th Sep 2025125 AMAQI
25th Sep 2025186 AMAQI
25th Sep 2025217 AMAQI
13°C10/17°C
25th Sep 2025178 AMAQI
25th Sep 2025139 AMAQI
25th Sep 20251410 AMAQI
25th Sep 20252011 AMAQI
25th Sep 20252712 PMAQI
25th Sep 2025291 PMAQI
25th Sep 2025332 PMAQI
25th Sep 2025353 PMAQI
25th Sep 2025354 PMAQI
25th Sep 2025365 PMAQI
25th Sep 2025356 PMAQI
25th Sep 2025347 PMAQI
25th Sep 2025358 PMAQI
25th Sep 2025339 PMAQI
25th Sep 20253210 PMAQI
25th Sep 20253211 PMAQI
26th Sep 20253312 AMAQI
26th Sep 2025331 AMAQI
26th Sep 2025312 AMAQI
26th Sep 2025273 AMAQI
26th Sep 2025234 AMAQI
26th Sep 2025275 AMAQI
26th Sep 2025306 AMAQI
26th Sep 2025297 AMAQI
13°C10/16°C
26th Sep 2025238 AMAQI
26th Sep 2025179 AMAQI
26th Sep 2025910 AMAQI
26th Sep 20252011 AMAQI
26th Sep 20253112 PMAQI
26th Sep 2025201 PMAQI
26th Sep 2025252 PMAQI
26th Sep 2025313 PMAQI
26th Sep 2025324 PMAQI
26th Sep 2025315 PMAQI
26th Sep 2025316 PMAQI
26th Sep 2025317 PMAQI
26th Sep 2025318 PMAQI
26th Sep 2025299 PMAQI
26th Sep 20252610 PMAQI
26th Sep 20252611 PMAQI
27th Sep 20251912 AMAQI
27th Sep 2025191 AMAQI
27th Sep 2025202 AMAQI
27th Sep 2025193 AMAQI
27th Sep 2025184 AMAQI
27th Sep 2025195 AMAQI
27th Sep 2025166 AMAQI
27th Sep 2025117 AMAQI
13°C10/17°C
27th Sep 2025118 AMAQI
27th Sep 2025119 AMAQI
27th Sep 20251210 AMAQI
27th Sep 20251111 AMAQI
27th Sep 20251112 PMAQI
27th Sep 2025111 PMAQI
27th Sep 2025102 PMAQI
27th Sep 2025103 PMAQI
27th Sep 202574 PMAQI
27th Sep 202595 PMAQI
27th Sep 202586 PMAQI
27th Sep 2025107 PMAQI
27th Sep 2025108 PMAQI
27th Sep 202589 PMAQI
27th Sep 20251110 PMAQI
27th Sep 20251111 PMAQI
28th Sep 20251112 AMAQI
28th Sep 2025111 AMAQI
28th Sep 2025112 AMAQI
28th Sep 2025113 AMAQI
28th Sep 2025114 AMAQI
28th Sep 2025125 AMAQI
28th Sep 2025116 AMAQI
28th Sep 202587 AMAQI
14°C11/17°C
28th Sep 2025118 AMAQI
28th Sep 2025119 AMAQI
28th Sep 20251110 AMAQI
28th Sep 20251011 AMAQI
28th Sep 2025612 PMAQI
28th Sep 202561 PMAQI
28th Sep 202562 PMAQI
28th Sep 202563 PMAQI
28th Sep 202564 PMAQI
28th Sep 202565 PMAQI
28th Sep 202566 PMAQI
28th Sep 2025137 PMAQI
28th Sep 2025238 PMAQI
28th Sep 2025259 PMAQI
28th Sep 20253010 PMAQI
28th Sep 20253411 PMAQI
29th Sep 20254012 AMAQI
29th Sep 2025391 AMAQI
29th Sep 2025392 AMAQI
29th Sep 2025373 AMAQI
29th Sep 2025414 AMAQI
29th Sep 2025465 AMAQI
29th Sep 2025416 AMAQI
29th Sep 2025447 AMAQI
14°C12/17°C
29th Sep 2025448 AMAQI
29th Sep 2025219 AMAQI
29th Sep 20254010 AMAQI
29th Sep 20253611 AMAQI
29th Sep 20252812 PMAQI
29th Sep 2025261 PMAQI
29th Sep 2025352 PMAQI
29th Sep 2025383 PMAQI
29th Sep 2025394 PMAQI
29th Sep 2025335 PMAQI
29th Sep 2025346 PMAQI
29th Sep 2025327 PMAQI
29th Sep 2025338 PMAQI
29th Sep 2025349 PMAQI
29th Sep 20253410 PMAQI
29th Sep 20255011 PMAQI
30th Sep 20254812 AMAQI
30th Sep 2025481 AMAQI
30th Sep 2025502 AMAQI
30th Sep 2025503 AMAQI
30th Sep 2025514 AMAQI
30th Sep 2025505 AMAQI
30th Sep 2025516 AMAQI
30th Sep 2025497 AMAQI
13°C11/17°C
30th Sep 2025508 AMAQI
30th Sep 2025479 AMAQI
30th Sep 20255010 AMAQI
30th Sep 20254911 AMAQI
30th Sep 20254412 PMAQI
30th Sep 2025481 PMAQI
30th Sep 2025542 PMAQI
30th Sep 2025473 PMAQI
30th Sep 2025484 PMAQI
30th Sep 2025475 PMAQI
30th Sep 2025386 PMAQI
30th Sep 2025307 PMAQI
30th Sep 2025378 PMAQI
30th Sep 2025449 PMAQI
30th Sep 20254510 PMAQI
30th Sep 20254411 PMAQI
1st Oct 20254612 AMAQI
1st Oct 2025491 AMAQI
1st Oct 2025442 AMAQI
1st Oct 2025473 AMAQI
1st Oct 2025474 AMAQI
1st Oct 2025305 AMAQI
1st Oct 2025476 AMAQI
1st Oct 2025517 AMAQI
13°C10/18°C
1st Oct 2025498 AMAQI
1st Oct 2025529 AMAQI
1st Oct 20255410 AMAQI
1st Oct 20255711 AMAQI
1st Oct 20255812 PMAQI
1st Oct 2025591 PMAQI
1st Oct 2025672 PMAQI
1st Oct 2025713 PMAQI
1st Oct 2025674 PMAQI
1st Oct 2025625 PMAQI
1st Oct 2025616 PMAQI
1st Oct 2025647 PMAQI
1st Oct 2025698 PMAQI
1st Oct 2025839 PMAQI
1st Oct 20259210 PMAQI
1st Oct 20259411 PMAQI
2nd Oct 20259012 AMAQI
2nd Oct 2025871 AMAQI
2nd Oct 2025782 AMAQI
2nd Oct 2025733 AMAQI
2nd Oct 2025734 AMAQI
2nd Oct 2025745 AMAQI
2nd Oct 2025736 AMAQI
2nd Oct 2025737 AMAQI
14°C12/19°C
2nd Oct 2025708 AMAQI
2nd Oct 2025739 AMAQI
2nd Oct 20257910 AMAQI
2nd Oct 20257511 AMAQI
2nd Oct 20256312 PMAQI
2nd Oct 2025601 PMAQI
2nd Oct 2025612 PMAQI
2nd Oct 2025643 PMAQI
2nd Oct 2025604 PMAQI
2nd Oct 2025545 PMAQI
2nd Oct 2025536 PMAQI
2nd Oct 2025547 PMAQI
2nd Oct 2025568 PMAQI
2nd Oct 2025549 PMAQI
2nd Oct 20255110 PMAQI
2nd Oct 20255111 PMAQI
3rd Oct 20255112 AMAQI
3rd Oct 2025511 AMAQI
3rd Oct 2025512 AMAQI
3rd Oct 2025503 AMAQI
3rd Oct 2025494 AMAQI
3rd Oct 2025525 AMAQI
3rd Oct 2025506 AMAQI
3rd Oct 2025487 AMAQI
15°C12/20°C
3rd Oct 2025488 AMAQI
3rd Oct 2025519 AMAQI
3rd Oct 20255310 AMAQI
3rd Oct 20254311 AMAQI
3rd Oct 20253712 PMAQI
3rd Oct 2025321 PMAQI
3rd Oct 2025422 PMAQI
3rd Oct 2025423 PMAQI
3rd Oct 2025444 PMAQI
3rd Oct 2025555 PMAQI
3rd Oct 2025546 PMAQI
3rd Oct 2025557 PMAQI
3rd Oct 2025498 PMAQI
3rd Oct 2025419 PMAQI
3rd Oct 20254110 PMAQI
3rd Oct 20254811 PMAQI
4th Oct 20255412 AMAQI
4th Oct 2025581 AMAQI
4th Oct 2025552 AMAQI
4th Oct 2025443 AMAQI
4th Oct 2025484 AMAQI
4th Oct 2025595 AMAQI
4th Oct 2025376 AMAQI
4th Oct 2025307 AMAQI
17°C16/18°C
4th Oct 2025428 AMAQI
4th Oct 2025409 AMAQI
4th Oct 20255110 AMAQI
4th Oct 20255911 AMAQI
4th Oct 20256312 PMAQI
4th Oct 2025621 PMAQI
4th Oct 2025602 PMAQI
4th Oct 2025483 PMAQI
4th Oct 2025404 PMAQI
4th Oct 2025545 PMAQI
4th Oct 2025676 PMAQI
4th Oct 2025637 PMAQI
4th Oct 2025598 PMAQI
4th Oct 2025579 PMAQI
4th Oct 20255010 PMAQI
4th Oct 20254411 PMAQI
5th Oct 20254812 AMAQI
5th Oct 2025451 AMAQI
5th Oct 2025512 AMAQI
5th Oct 2025503 AMAQI
5th Oct 2025494 AMAQI
5th Oct 2025595 AMAQI
5th Oct 2025536 AMAQI
5th Oct 2025487 AMAQI
13°C12/14°C
5th Oct 2025458 AMAQI
5th Oct 2025539 AMAQI
5th Oct 20255710 AMAQI
5th Oct 20255211 AMAQI
5th Oct 20255112 PMAQI
5th Oct 2025481 PMAQI
5th Oct 2025522 PMAQI
5th Oct 2025593 PMAQI
5th Oct 2025604 PMAQI
5th Oct 2025625 PMAQI
5th Oct 2025606 PMAQI
5th Oct 2025597 PMAQI
5th Oct 2025568 PMAQI
5th Oct 2025549 PMAQI
5th Oct 20255210 PMAQI
5th Oct 20255611 PMAQI
6th Oct 20255612 AMAQI
6th Oct 2025571 AMAQI
6th Oct 2025602 AMAQI
6th Oct 2025643 AMAQI
6th Oct 2025564 AMAQI
6th Oct 2025525 AMAQI
6th Oct 2025516 AMAQI
6th Oct 2025497 AMAQI
13°C11/15°C
6th Oct 2025508 AMAQI
6th Oct 2025589 AMAQI
6th Oct 20256010 AMAQI
6th Oct 20255611 AMAQI
6th Oct 20255612 PMAQI
6th Oct 2025521 PMAQI
6th Oct 2025522 PMAQI
6th Oct 2025483 PMAQI
6th Oct 2025514 PMAQI
6th Oct 2025525 PMAQI
6th Oct 2025526 PMAQI
6th Oct 2025537 PMAQI
13°C11/17°C
7th Oct 2025551 PMAQI
7th Oct 2025612 PMAQI
7th Oct 2025593 PMAQI
7th Oct 2025614 PMAQI
7th Oct 2025635 PMAQI
7th Oct 2025596 PMAQI
7th Oct 2025627 PMAQI
7th Oct 2025678 PMAQI
7th Oct 2025709 PMAQI
7th Oct 20256710 PMAQI
7th Oct 20256811 PMAQI
8th Oct 20256812 AMAQI
8th Oct 2025651 AMAQI
8th Oct 2025602 AMAQI
8th Oct 2025583 AMAQI
8th Oct 2025564 AMAQI
8th Oct 2025565 AMAQI
8th Oct 2025556 AMAQI
8th Oct 2025557 AMAQI
13°C10/18°C
8th Oct 2025528 AMAQI
8th Oct 2025419 AMAQI
8th Oct 20254210 AMAQI
8th Oct 20254211 AMAQI
8th Oct 20254912 PMAQI
8th Oct 2025551 PMAQI
8th Oct 2025552 PMAQI
8th Oct 2025573 PMAQI
8th Oct 2025564 PMAQI
8th Oct 2025535 PMAQI
8th Oct 2025566 PMAQI
8th Oct 2025567 PMAQI
8th Oct 2025588 PMAQI
8th Oct 2025619 PMAQI
8th Oct 20256410 PMAQI
8th Oct 20256711 PMAQI
9th Oct 20256612 AMAQI
9th Oct 2025641 AMAQI
9th Oct 2025582 AMAQI
9th Oct 2025573 AMAQI
9th Oct 2025534 AMAQI
9th Oct 2025525 AMAQI
9th Oct 2025496 AMAQI
9th Oct 2025487 AMAQI
14°C12/17°C
9th Oct 2025428 AMAQI
9th Oct 2025439 AMAQI
9th Oct 20254910 AMAQI
9th Oct 20254611 AMAQI
9th Oct 20254712 PMAQI
9th Oct 2025431 PMAQI
9th Oct 2025502 PMAQI
9th Oct 2025443 PMAQI
9th Oct 2025434 PMAQI
9th Oct 2025415 PMAQI
9th Oct 2025486 PMAQI
9th Oct 2025437 PMAQI
9th Oct 2025468 PMAQI
9th Oct 2025479 PMAQI
9th Oct 20255410 PMAQI
9th Oct 20256111 PMAQI
10th Oct 20256612 AMAQI
10th Oct 2025691 AMAQI
10th Oct 2025652 AMAQI
10th Oct 2025603 AMAQI
10th Oct 2025564 AMAQI
10th Oct 2025565 AMAQI
10th Oct 2025546 AMAQI
10th Oct 2025557 AMAQI
13°C10/16°C
10th Oct 2025578 AMAQI
10th Oct 2025569 AMAQI
10th Oct 20255910 AMAQI
10th Oct 20256111 AMAQI
10th Oct 20255612 PMAQI
10th Oct 2025561 PMAQI
10th Oct 2025552 PMAQI
10th Oct 2025563 PMAQI
10th Oct 2025554 PMAQI
10th Oct 2025565 PMAQI
10th Oct 2025556 PMAQI
10th Oct 2025577 PMAQI
10th Oct 2025568 PMAQI
10th Oct 2025589 PMAQI
10th Oct 20255610 PMAQI
10th Oct 20255711 PMAQI
11th Oct 20255812 AMAQI
11th Oct 2025611 AMAQI
11th Oct 2025662 AMAQI
11th Oct 2025663 AMAQI
11th Oct 2025644 AMAQI
11th Oct 2025625 AMAQI
11th Oct 2025606 AMAQI
11th Oct 2025647 AMAQI
14°C12/18°C
11th Oct 2025638 AMAQI
11th Oct 2025619 AMAQI
11th Oct 20255810 AMAQI
11th Oct 20255711 AMAQI
11th Oct 20255712 PMAQI
11th Oct 2025581 PMAQI
11th Oct 2025582 PMAQI
11th Oct 2025593 PMAQI
11th Oct 2025604 PMAQI
11th Oct 2025595 PMAQI
11th Oct 2025556 PMAQI
11th Oct 2025547 PMAQI
11th Oct 2025538 PMAQI
11th Oct 2025559 PMAQI
11th Oct 20256210 PMAQI
11th Oct 20255711 PMAQI
12th Oct 20256012 AMAQI
12th Oct 2025571 AMAQI
12th Oct 2025592 AMAQI
12th Oct 2025603 AMAQI
12th Oct 2025584 AMAQI
12th Oct 2025575 AMAQI
12th Oct 2025586 AMAQI
14°C12/18°C
8 AM
2 PM
8 PM
2 AM
7 AM
--°C/°C
Day time
Avg. Highest Time
2 PM - 8 PM
33AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
8 AM - 9 AM
31AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 PM to 8 PM (Avg. 33), while the lowest AQI was between 8 AM to 9 AM (Avg. 31).
Night time
Avg. Highest Time
12 AM - 1 AM
36AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
7 AM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 36), while the lowest AQI was between 7 AM to 7 AM (Avg. 31).
2025 Days Vs Air Quality
Impasse Croiseur Montcalm, Brest, Bretagne, France
2025
86%
244
14%
40
Total number of days with different AQI categories in last 285 days in 2025 (80 days remaining)
Good
244 DaysModerate
40 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2025, 86% of 285 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Impasse Croiseur Montcalm, Brest, Bretagne, France
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
32AQI
32AQI
2nd January 2025
27AQI
27AQI
3rd January 2025
35AQI
35AQI
4th January 2025
42AQI
42AQI
5th January 2025
34AQI
34AQI
6th January 2025
29AQI
29AQI
7th January 2025
27AQI
27AQI
8th January 2025
38AQI
38AQI
9th January 2025
32AQI
32AQI
10th January 2025
27AQI
27AQI
11th January 2025
32AQI
32AQI
12th January 2025
35AQI
35AQI
13th January 2025
38AQI
38AQI
14th January 2025
57AQI
57AQI
15th January 2025
71AQI
71AQI
16th January 2025
46AQI
46AQI
17th January 2025
56AQI
56AQI
18th January 2025
60AQI
60AQI
19th January 2025
58AQI
58AQI
20th January 2025
54AQI
54AQI
21st January 2025
57AQI
57AQI
22nd January 2025
59AQI
59AQI
23rd January 2025
35AQI
35AQI
24th January 2025
34AQI
34AQI
25th January 2025
29AQI
29AQI
26th January 2025
35AQI
35AQI
27th January 2025
31AQI
31AQI
28th January 2025
33AQI
33AQI
29th January 2025
31AQI
31AQI
30th January 2025
28AQI
28AQI
31st January 2025
33AQI
33AQI
1st February 2025
37AQI
37AQI
2nd February 2025
28AQI
28AQI
3rd February 2025
34AQI
34AQI
4th February 2025
28AQI
28AQI
5th February 2025
40AQI
40AQI
6th February 2025
39AQI
39AQI
7th February 2025
50AQI
50AQI
8th February 2025
37AQI
37AQI
9th February 2025
54AQI
54AQI
10th February 2025
41AQI
41AQI
11th February 2025
65AQI
65AQI
12th February 2025
62AQI
62AQI
13th February 2025
64AQI
64AQI
14th February 2025
38AQI
38AQI
15th February 2025
49AQI
49AQI
16th February 2025
62AQI
62AQI
17th February 2025
74AQI
74AQI
18th February 2025
68AQI
68AQI
19th February 2025
66AQI
66AQI
20th February 2025
36AQI
36AQI
21st February 2025
37AQI
37AQI
22nd February 2025
35AQI
35AQI
23rd February 2025
31AQI
31AQI
24th February 2025
38AQI
38AQI
25th February 2025
36AQI
36AQI
26th February 2025
28AQI
28AQI
27th February 2025
27AQI
27AQI
28th February 2025
33AQI
33AQI
1st March 2025
30AQI
30AQI
2nd March 2025
36AQI
36AQI
3rd March 2025
59AQI
59AQI
4th March 2025
72AQI
72AQI
5th March 2025
78AQI
78AQI
6th March 2025
54AQI
54AQI
7th March 2025
45AQI
45AQI
8th March 2025
33AQI
33AQI
9th March 2025
28AQI
28AQI
10th March 2025
34AQI
34AQI
11th March 2025
56AQI
56AQI
12th March 2025
39AQI
39AQI
13th March 2025
26AQI
26AQI
14th March 2025
34AQI
34AQI
15th March 2025
26AQI
26AQI
16th March 2025
37AQI
37AQI
17th March 2025
50AQI
50AQI
18th March 2025
58AQI
58AQI
19th March 2025
41AQI
41AQI
20th March 2025
34AQI
34AQI
21st March 2025
34AQI
34AQI
22nd March 2025
21AQI
21AQI
23rd March 2025
34AQI
34AQI
24th March 2025
56AQI
56AQI
25th March 2025
60AQI
60AQI
26th March 2025
32AQI
32AQI
27th March 2025
49AQI
49AQI
28th March 2025
25AQI
25AQI
29th March 2025
24AQI
24AQI
30th March 2025
24AQI
24AQI
31st March 2025
41AQI
41AQI
1st April 2025
38AQI
38AQI
2nd April 2025
40AQI
40AQI
3rd April 2025
38AQI
38AQI
4th April 2025
30AQI
30AQI
5th April 2025
39AQI
39AQI
6th April 2025
46AQI
46AQI
7th April 2025
41AQI
41AQI
8th April 2025
45AQI
45AQI
9th April 2025
63AQI
63AQI
10th April 2025
64AQI
64AQI
11th April 2025
60AQI
60AQI
12th April 2025
50AQI
50AQI
13th April 2025
37AQI
37AQI
14th April 2025
19AQI
19AQI
15th April 2025
21AQI
21AQI
16th April 2025
16AQI
16AQI
17th April 2025
17AQI
17AQI
18th April 2025
18AQI
18AQI
19th April 2025
18AQI
18AQI
20th April 2025
44AQI
44AQI
21st April 2025
47AQI
47AQI
22nd April 2025
23AQI
23AQI
23rd April 2025
19AQI
19AQI
24th April 2025
21AQI
21AQI
25th April 2025
36AQI
36AQI
26th April 2025
48AQI
48AQI
27th April 2025
50AQI
50AQI
28th April 2025
53AQI
53AQI
29th April 2025
39AQI
39AQI
30th April 2025
35AQI
35AQI
1st May 2025
31AQI
31AQI
2nd May 2025
20AQI
20AQI
3rd May 2025
24AQI
24AQI
4th May 2025
20AQI
20AQI
5th May 2025
15AQI
15AQI
6th May 2025
16AQI
16AQI
7th May 2025
17AQI
17AQI
8th May 2025
19AQI
19AQI
9th May 2025
21AQI
21AQI
10th May 2025
22AQI
22AQI
11th May 2025
18AQI
18AQI
12th May 2025
20AQI
20AQI
13th May 2025
19AQI
19AQI
14th May 2025
22AQI
22AQI
15th May 2025
23AQI
23AQI
16th May 2025
21AQI
21AQI
17th May 2025
20AQI
20AQI
18th May 2025
21AQI
21AQI
19th May 2025
25AQI
25AQI
20th May 2025
30AQI
30AQI
21st May 2025
28AQI
28AQI
22nd May 2025
19AQI
19AQI
23rd May 2025
17AQI
17AQI
24th May 2025
17AQI
17AQI
25th May 2025
14AQI
14AQI
26th May 2025
16AQI
16AQI
27th May 2025
19AQI
19AQI
28th May 2025
17AQI
17AQI
29th May 2025
17AQI
17AQI
30th May 2025
17AQI
17AQI
31st May 2025
17AQI
17AQI
1st June 2025
17AQI
17AQI
2nd June 2025
15AQI
15AQI
3rd June 2025
18AQI
18AQI
4th June 2025
16AQI
16AQI
5th June 2025
16AQI
16AQI
6th June 2025
14AQI
14AQI
7th June 2025
15AQI
15AQI
8th June 2025
22AQI
22AQI
9th June 2025
48AQI
48AQI
10th June 2025
44AQI
44AQI
11th June 2025
38AQI
38AQI
12th June 2025
43AQI
43AQI
13th June 2025
34AQI
34AQI
14th June 2025
27AQI
27AQI
15th June 2025
21AQI
21AQI
16th June 2025
21AQI
21AQI
17th June 2025
24AQI
24AQI
18th June 2025
27AQI
27AQI
19th June 2025
27AQI
27AQI
20th June 2025
34AQI
34AQI
21st June 2025
40AQI
40AQI
22nd June 2025
43AQI
43AQI
23rd June 2025
30AQI
30AQI
24th June 2025
23AQI
23AQI
25th June 2025
20AQI
20AQI
26th June 2025
17AQI
17AQI
27th June 2025
15AQI
15AQI
28th June 2025
14AQI
14AQI
29th June 2025
15AQI
15AQI
30th June 2025
19AQI
19AQI
1st July 2025
23AQI
23AQI
2nd July 2025
21AQI
21AQI
3rd July 2025
17AQI
17AQI
4th July 2025
17AQI
17AQI
5th July 2025
18AQI
18AQI
6th July 2025
17AQI
17AQI
7th July 2025
17AQI
17AQI
8th July 2025
18AQI
18AQI
9th July 2025
18AQI
18AQI
10th July 2025
18AQI
18AQI
11th July 2025
19AQI
19AQI
12th July 2025
20AQI
20AQI
13th July 2025
23AQI
23AQI
14th July 2025
22AQI
22AQI
15th July 2025
21AQI
21AQI
16th July 2025
25AQI
25AQI
17th July 2025
20AQI
20AQI
18th July 2025
19AQI
19AQI
19th July 2025
18AQI
18AQI
20th July 2025
19AQI
19AQI
21st July 2025
18AQI
18AQI
22nd July 2025
16AQI
16AQI
23rd July 2025
15AQI
15AQI
24th July 2025
41AQI
41AQI
25th July 2025
53AQI
53AQI
26th July 2025
35AQI
35AQI
27th July 2025
24AQI
24AQI
28th July 2025
21AQI
21AQI
29th July 2025
18AQI
18AQI
30th July 2025
17AQI
17AQI
31st July 2025
17AQI
17AQI
1st August 2025
20AQI
20AQI
2nd August 2025
20AQI
20AQI
3rd August 2025
20AQI
20AQI
4th August 2025
23AQI
23AQI
5th August 2025
24AQI
24AQI
6th August 2025
25AQI
25AQI
7th August 2025
26AQI
26AQI
8th August 2025
24AQI
24AQI
9th August 2025
20AQI
20AQI
10th August 2025
21AQI
21AQI
11th August 2025
35AQI
35AQI
12th August 2025
50AQI
50AQI
13th August 2025
55AQI
55AQI
14th August 2025
44AQI
44AQI
15th August 2025
37AQI
37AQI
16th August 2025
40AQI
40AQI
17th August 2025
43AQI
43AQI
18th August 2025
40AQI
40AQI
19th August 2025
43AQI
43AQI
20th August 2025
40AQI
40AQI
21st August 2025
40AQI
40AQI
22nd August 2025
33AQI
33AQI
23rd August 2025
30AQI
30AQI
24th August 2025
29AQI
29AQI
25th August 2025
29AQI
29AQI
26th August 2025
28AQI
28AQI
27th August 2025
28AQI
28AQI
28th August 2025
25AQI
25AQI
29th August 2025
22AQI
22AQI
30th August 2025
20AQI
20AQI
31st August 2025
20AQI
20AQI
1st September 2025
21AQI
21AQI
2nd September 2025
21AQI
21AQI
3rd September 2025
25AQI
25AQI
4th September 2025
22AQI
22AQI
5th September 2025
19AQI
19AQI
6th September 2025
18AQI
18AQI
7th September 2025
22AQI
22AQI
8th September 2025
22AQI
22AQI
9th September 2025
22AQI
22AQI
10th September 2025
20AQI
20AQI
11th September 2025
21AQI
21AQI
12th September 2025
19AQI
19AQI
13th September 2025
18AQI
18AQI
14th September 2025
17AQI
17AQI
15th September 2025
22AQI
22AQI
16th September 2025
22AQI
22AQI
17th September 2025
19AQI
19AQI
18th September 2025
16AQI
16AQI
19th September 2025
18AQI
18AQI
20th September 2025
19AQI
19AQI
21st September 2025
17AQI
17AQI
22nd September 2025
15AQI
15AQI
23rd September 2025
15AQI
15AQI
24th September 2025
16AQI
16AQI
25th September 2025
25AQI
25AQI
26th September 2025
28AQI
28AQI
27th September 2025
14AQI
14AQI
28th September 2025
13AQI
13AQI
29th September 2025
37AQI
37AQI
30th September 2025
47AQI
47AQI
1st October 2025
57AQI
57AQI
2nd October 2025
70AQI
70AQI
3rd October 2025
48AQI
48AQI
4th October 2025
52AQI
52AQI
5th October 2025
52AQI
52AQI
6th October 2025
54AQI
54AQI
7th October 2025
63AQI
63AQI
8th October 2025
59AQI
59AQI
9th October 2025
53AQI
53AQI
10th October 2025
58AQI
58AQI
11th October 2025
60AQI
60AQI
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
40AQI
44AQI
41AQI
37AQI
20AQI
25AQI
21AQI
31AQI
21AQI
57AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202532AQI
23
8
20
8
23
8
26
4
31
30
30
1
30
1
30
1
10
244
40
Highest AQI recorded in
October57AQI
Lowest AQI recorded in
May20AQI
202415AQI
31
29
31
30
31
30
31
31
3
13
25
5
28
3
313
8
Highest AQI recorded in
November39AQI
Lowest AQI recorded in
July6AQI
202311AQI
31
28
31
30
31
28
8
31
30
31
29
31
339
Highest AQI recorded in
March17AQI
Lowest AQI recorded in
August6AQI
202215AQI
2
30
30
62
Highest AQI recorded in
December20AQI
Lowest AQI recorded in
November11AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
32AQILeast Polluted Year Recorded
2023(Avg.)
11AQIImpasse Croiseur Montcalm's annual 2025 AQI (32) shows an average percentage change of 136.9% (worsened AQI) compared to previous years: 2022 (15), 2023 (11), 2024 (15).
