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HistoryAQIPM2.5PM10COSO2NO2O3

Sea Railroader, Grande Synthe, Hauts De France, 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+

August Air Quality Analysis

Sea Railroader, Grande Synthe, Hauts De France, France

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
18th Aug 2023
84AQI
Lowest AQI recorded on
6th Aug 2021
20AQI

Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 22 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025

Sea Railroader, Grande Synthe, Hauts De France, France

AQI
Day
Night
.

5 AM1st Aug 2025

9 PM

4 AM2nd Aug 2025

Day time
Avg. Highest Time
9AM1st Aug

28AQI

Avg. Lowest Time
6AM1st Aug

19AQI

Night time
Avg. Highest Time
5AM1st Aug

25AQI

Avg. Lowest Time
3AM2nd Aug

19AQI

In the last 24 hours,

Sea Railroader's AQI reached its highest point of 28 at 9 AM during the Day, while the lowest point, 19, was recorded at 3 AM during the Night between 1st Aug and 2nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Sea Railroader, Grande Synthe, Hauts De France, France

JulAug
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
3rd Jul 2025265 AMAQI
3rd Jul 2025266 AMAQI
3rd Jul 2025267 AMAQI
3rd Jul 2025268 AMAQI
3rd Jul 2025269 AMAQI
3rd Jul 20252610 AMAQI
3rd Jul 20253011 AMAQI
3rd Jul 20253012 PMAQI
3rd Jul 2025321 PMAQI
3rd Jul 2025322 PMAQI
3rd Jul 2025323 PMAQI
3rd Jul 2025324 PMAQI
3rd Jul 2025305 PMAQI
3rd Jul 2025306 PMAQI
3rd Jul 2025307 PMAQI
3rd Jul 2025328 PMAQI
3rd Jul 2025329 PMAQI
3rd Jul 20253110 PMAQI
3rd Jul 20253211 PMAQI
4th Jul 20253212 AMAQI
4th Jul 2025321 AMAQI
4th Jul 2025222 AMAQI
4th Jul 2025183 AMAQI
4th Jul 2025294 AMAQI

17°C15/19°C

4th Jul 2025275 AMAQI
4th Jul 2025286 AMAQI
4th Jul 2025257 AMAQI
4th Jul 2025268 AMAQI
4th Jul 2025249 AMAQI
4th Jul 20252710 AMAQI
4th Jul 20252611 AMAQI
4th Jul 20252912 PMAQI
4th Jul 2025331 PMAQI
4th Jul 2025282 PMAQI
4th Jul 2025293 PMAQI
4th Jul 2025284 PMAQI
4th Jul 2025285 PMAQI
4th Jul 2025266 PMAQI
4th Jul 2025247 PMAQI
4th Jul 2025248 PMAQI
4th Jul 2025269 PMAQI
4th Jul 20252710 PMAQI
4th Jul 20252711 PMAQI
5th Jul 20252612 AMAQI
5th Jul 2025261 AMAQI
5th Jul 2025202 AMAQI
5th Jul 2025163 AMAQI
5th Jul 2025204 AMAQI

18°C14/22°C

5th Jul 2025225 AMAQI
5th Jul 2025246 AMAQI
5th Jul 2025267 AMAQI
5th Jul 2025288 AMAQI
5th Jul 2025259 AMAQI
5th Jul 20252610 AMAQI
5th Jul 20252411 AMAQI
5th Jul 20252412 PMAQI
5th Jul 2025231 PMAQI
5th Jul 2025232 PMAQI
5th Jul 2025233 PMAQI
5th Jul 2025234 PMAQI
5th Jul 2025235 PMAQI
5th Jul 2025246 PMAQI
5th Jul 2025237 PMAQI
5th Jul 2025228 PMAQI
5th Jul 2025239 PMAQI
5th Jul 20252210 PMAQI
5th Jul 20252311 PMAQI
6th Jul 20252312 AMAQI
6th Jul 2025231 AMAQI
6th Jul 2025212 AMAQI
6th Jul 2025193 AMAQI
6th Jul 2025244 AMAQI

17°C16/20°C

6th Jul 2025185 AMAQI
6th Jul 2025166 AMAQI
6th Jul 2025167 AMAQI
6th Jul 2025158 AMAQI
6th Jul 2025159 AMAQI
6th Jul 20251610 AMAQI
6th Jul 20251411 AMAQI
6th Jul 20251512 PMAQI
6th Jul 2025171 PMAQI
6th Jul 2025192 PMAQI
6th Jul 2025213 PMAQI
6th Jul 2025214 PMAQI
6th Jul 2025225 PMAQI
6th Jul 2025226 PMAQI
6th Jul 2025197 PMAQI
6th Jul 2025238 PMAQI
6th Jul 2025229 PMAQI
6th Jul 20252010 PMAQI
6th Jul 20252011 PMAQI
7th Jul 20252012 AMAQI
7th Jul 2025201 AMAQI
7th Jul 2025222 AMAQI
7th Jul 2025193 AMAQI
7th Jul 2025214 AMAQI

17°C16/19°C

7th Jul 2025215 AMAQI
7th Jul 2025256 AMAQI
7th Jul 2025247 AMAQI
7th Jul 2025238 AMAQI
7th Jul 2025239 AMAQI
7th Jul 20251810 AMAQI
7th Jul 20251811 AMAQI
7th Jul 20252212 PMAQI
7th Jul 2025481 PMAQI
7th Jul 2025212 PMAQI
7th Jul 2025233 PMAQI
7th Jul 2025234 PMAQI
7th Jul 2025235 PMAQI
7th Jul 2025236 PMAQI
7th Jul 2025217 PMAQI
7th Jul 2025218 PMAQI
7th Jul 2025219 PMAQI
7th Jul 20252210 PMAQI
7th Jul 20252211 PMAQI
8th Jul 20252212 AMAQI
8th Jul 2025211 AMAQI
8th Jul 2025232 AMAQI
8th Jul 2025303 AMAQI
8th Jul 2025374 AMAQI

16°C14/17°C

8th Jul 2025335 AMAQI
8th Jul 2025256 AMAQI
8th Jul 2025267 AMAQI
8th Jul 2025328 AMAQI
8th Jul 2025479 AMAQI
8th Jul 20253710 AMAQI
8th Jul 20253311 AMAQI
8th Jul 20255012 PMAQI
8th Jul 2025451 PMAQI
8th Jul 2025302 PMAQI
8th Jul 2025293 PMAQI
8th Jul 2025294 PMAQI
8th Jul 2025285 PMAQI
8th Jul 2025276 PMAQI
8th Jul 2025267 PMAQI
8th Jul 2025278 PMAQI
8th Jul 2025279 PMAQI
8th Jul 20252810 PMAQI
8th Jul 20252811 PMAQI
9th Jul 20252812 AMAQI
9th Jul 2025281 AMAQI
9th Jul 2025272 AMAQI
9th Jul 2025243 AMAQI
9th Jul 2025234 AMAQI

16°C13/18°C

9th Jul 2025255 AMAQI
9th Jul 2025266 AMAQI
9th Jul 2025277 AMAQI
9th Jul 2025288 AMAQI
9th Jul 2025319 AMAQI
9th Jul 20253410 AMAQI
9th Jul 20253611 AMAQI
9th Jul 20254712 PMAQI
9th Jul 2025471 PMAQI
9th Jul 2025302 PMAQI
9th Jul 2025283 PMAQI
9th Jul 2025284 PMAQI
9th Jul 2025285 PMAQI
9th Jul 2025286 PMAQI
9th Jul 2025287 PMAQI
9th Jul 2025308 PMAQI
9th Jul 2025289 PMAQI
9th Jul 20252810 PMAQI
9th Jul 20252811 PMAQI
10th Jul 20252812 AMAQI
10th Jul 2025281 AMAQI
10th Jul 2025282 AMAQI
10th Jul 2025223 AMAQI
10th Jul 2025244 AMAQI

18°C14/21°C

10th Jul 2025275 AMAQI
10th Jul 2025276 AMAQI
10th Jul 2025277 AMAQI
10th Jul 2025308 AMAQI
10th Jul 2025319 AMAQI
10th Jul 20253610 AMAQI
10th Jul 20253611 AMAQI
10th Jul 20254112 PMAQI
10th Jul 2025381 PMAQI
10th Jul 2025282 PMAQI
10th Jul 2025293 PMAQI
10th Jul 2025294 PMAQI
10th Jul 2025295 PMAQI
10th Jul 2025306 PMAQI
10th Jul 2025367 PMAQI
10th Jul 2025288 PMAQI
10th Jul 2025269 PMAQI
10th Jul 20252810 PMAQI
10th Jul 20252811 PMAQI
11th Jul 20252812 AMAQI
11th Jul 2025281 AMAQI
11th Jul 2025232 AMAQI
11th Jul 2025203 AMAQI
11th Jul 2025234 AMAQI

19°C16/22°C

11th Jul 2025285 AMAQI
11th Jul 2025356 AMAQI
11th Jul 2025337 AMAQI
11th Jul 2025408 AMAQI
11th Jul 2025439 AMAQI
11th Jul 20253710 AMAQI
11th Jul 20253611 AMAQI
11th Jul 20253012 PMAQI
11th Jul 2025261 PMAQI
11th Jul 2025282 PMAQI
11th Jul 2025283 PMAQI
11th Jul 2025274 PMAQI
11th Jul 2025265 PMAQI
11th Jul 2025266 PMAQI
11th Jul 2025267 PMAQI
11th Jul 2025258 PMAQI
11th Jul 2025279 PMAQI
11th Jul 20252810 PMAQI
11th Jul 20252811 PMAQI
12th Jul 20252812 AMAQI
12th Jul 2025281 AMAQI
12th Jul 2025212 AMAQI
12th Jul 2025203 AMAQI
12th Jul 2025204 AMAQI

19°C16/21°C

12th Jul 2025215 AMAQI
12th Jul 2025216 AMAQI
12th Jul 2025227 AMAQI
12th Jul 2025238 AMAQI
12th Jul 2025229 AMAQI
12th Jul 20252310 AMAQI
12th Jul 20252311 AMAQI
12th Jul 20252212 PMAQI
12th Jul 2025221 PMAQI
12th Jul 2025232 PMAQI
12th Jul 2025233 PMAQI
12th Jul 2025224 PMAQI
12th Jul 2025235 PMAQI
12th Jul 2025236 PMAQI
12th Jul 2025247 PMAQI
12th Jul 2025238 PMAQI
12th Jul 2025249 PMAQI
12th Jul 20252510 PMAQI
12th Jul 20252411 PMAQI
13th Jul 20252412 AMAQI
13th Jul 2025241 AMAQI
13th Jul 2025242 AMAQI
13th Jul 2025233 AMAQI
13th Jul 2025254 AMAQI

19°C17/20°C

13th Jul 2025245 AMAQI
13th Jul 2025236 AMAQI
13th Jul 2025247 AMAQI
13th Jul 2025238 AMAQI
13th Jul 2025259 AMAQI
13th Jul 20252710 AMAQI
13th Jul 20252811 AMAQI
13th Jul 20253112 PMAQI
13th Jul 2025321 PMAQI
13th Jul 2025272 PMAQI
13th Jul 2025273 PMAQI
13th Jul 2025274 PMAQI
13th Jul 2025285 PMAQI
13th Jul 2025286 PMAQI
13th Jul 2025287 PMAQI
13th Jul 2025288 PMAQI
13th Jul 2025279 PMAQI
13th Jul 20252610 PMAQI
13th Jul 20252711 PMAQI
14th Jul 20252612 AMAQI
14th Jul 2025261 AMAQI
14th Jul 2025492 AMAQI
14th Jul 2025583 AMAQI
14th Jul 2025594 AMAQI

19°C16/21°C

14th Jul 2025615 AMAQI
14th Jul 2025586 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025528 AMAQI
14th Jul 2025429 AMAQI
14th Jul 20254810 AMAQI
14th Jul 20254611 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025341 PMAQI
14th Jul 2025342 PMAQI
14th Jul 2025333 PMAQI
14th Jul 2025324 PMAQI
14th Jul 2025335 PMAQI
14th Jul 2025326 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025348 PMAQI
14th Jul 2025359 PMAQI
14th Jul 20254210 PMAQI
14th Jul 20254311 PMAQI
15th Jul 20254312 AMAQI
15th Jul 2025451 AMAQI
15th Jul 2025372 AMAQI
15th Jul 2025283 AMAQI
15th Jul 2025284 AMAQI

19°C17/22°C

15th Jul 2025285 AMAQI
15th Jul 2025346 AMAQI
15th Jul 2025337 AMAQI
15th Jul 2025328 AMAQI
15th Jul 2025319 AMAQI
15th Jul 20253110 AMAQI
15th Jul 20253111 AMAQI
15th Jul 20253112 PMAQI
15th Jul 2025321 PMAQI
15th Jul 2025342 PMAQI
15th Jul 2025333 PMAQI
15th Jul 2025334 PMAQI
15th Jul 2025345 PMAQI
15th Jul 2025346 PMAQI
15th Jul 2025347 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025349 PMAQI
15th Jul 20253410 PMAQI
15th Jul 20253411 PMAQI
16th Jul 20253412 AMAQI
16th Jul 2025331 AMAQI
16th Jul 2025282 AMAQI
16th Jul 2025303 AMAQI
16th Jul 2025354 AMAQI

18°C15/21°C

16th Jul 2025425 AMAQI
16th Jul 2025426 AMAQI
16th Jul 2025397 AMAQI
16th Jul 2025358 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20253510 AMAQI
16th Jul 20253311 AMAQI
16th Jul 20253112 PMAQI
16th Jul 2025321 PMAQI
16th Jul 2025392 PMAQI
16th Jul 2025323 PMAQI
16th Jul 2025344 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025336 PMAQI
16th Jul 2025327 PMAQI
16th Jul 2025338 PMAQI
16th Jul 2025329 PMAQI
16th Jul 20253410 PMAQI
16th Jul 20253411 PMAQI
17th Jul 20253412 AMAQI
17th Jul 2025351 AMAQI
17th Jul 2025362 AMAQI
17th Jul 2025403 AMAQI
17th Jul 2025344 AMAQI

18°C16/20°C

17th Jul 2025365 AMAQI
17th Jul 2025336 AMAQI
17th Jul 2025347 AMAQI
17th Jul 2025378 AMAQI
17th Jul 2025369 AMAQI
17th Jul 20253610 AMAQI
17th Jul 20253311 AMAQI
17th Jul 20253212 PMAQI
17th Jul 2025311 PMAQI
17th Jul 2025342 PMAQI
17th Jul 2025323 PMAQI
17th Jul 2025364 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025386 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025358 PMAQI
17th Jul 2025349 PMAQI
17th Jul 20253310 PMAQI
17th Jul 20253211 PMAQI
18th Jul 20253312 AMAQI
18th Jul 2025331 AMAQI
18th Jul 2025432 AMAQI
18th Jul 2025513 AMAQI
18th Jul 2025534 AMAQI

19°C16/22°C

18th Jul 2025525 AMAQI
18th Jul 2025386 AMAQI
18th Jul 2025347 AMAQI
18th Jul 2025328 AMAQI
18th Jul 2025429 AMAQI
18th Jul 20256610 AMAQI
18th Jul 20255611 AMAQI
18th Jul 20254412 PMAQI
18th Jul 2025361 PMAQI
18th Jul 2025402 PMAQI
18th Jul 2025353 PMAQI
18th Jul 2025354 PMAQI
18th Jul 2025355 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025327 PMAQI
18th Jul 2025328 PMAQI
18th Jul 2025339 PMAQI
18th Jul 20253810 PMAQI
18th Jul 20253811 PMAQI
19th Jul 20253812 AMAQI
19th Jul 2025401 AMAQI
19th Jul 2025382 AMAQI
19th Jul 2025443 AMAQI
19th Jul 2025524 AMAQI

21°C17/23°C

19th Jul 2025495 AMAQI
19th Jul 2025456 AMAQI
19th Jul 2025347 AMAQI
19th Jul 2025368 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253510 AMAQI
19th Jul 20253511 AMAQI
19th Jul 20254112 PMAQI
19th Jul 2025411 PMAQI
19th Jul 2025442 PMAQI
19th Jul 2025433 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025395 PMAQI
19th Jul 2025516 PMAQI
19th Jul 2025527 PMAQI
19th Jul 2025498 PMAQI
19th Jul 2025449 PMAQI
19th Jul 20254210 PMAQI
19th Jul 20254111 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025411 AMAQI
20th Jul 2025302 AMAQI
20th Jul 2025213 AMAQI
20th Jul 2025224 AMAQI

21°C17/27°C

20th Jul 2025225 AMAQI
20th Jul 2025236 AMAQI
20th Jul 2025257 AMAQI
20th Jul 2025248 AMAQI
20th Jul 2025219 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20251611 AMAQI
20th Jul 20251612 PMAQI
20th Jul 2025181 PMAQI
20th Jul 2025242 PMAQI
20th Jul 2025223 PMAQI
20th Jul 2025214 PMAQI
20th Jul 2025205 PMAQI
20th Jul 2025206 PMAQI
20th Jul 2025227 PMAQI
20th Jul 2025248 PMAQI
20th Jul 2025249 PMAQI
20th Jul 20252410 PMAQI
20th Jul 20252411 PMAQI
21st Jul 20252512 AMAQI
21st Jul 2025261 AMAQI
21st Jul 2025222 AMAQI
21st Jul 2025183 AMAQI
21st Jul 2025204 AMAQI

18°C17/21°C

21st Jul 2025195 AMAQI
21st Jul 2025206 AMAQI
21st Jul 2025217 AMAQI
21st Jul 2025228 AMAQI
21st Jul 2025229 AMAQI
21st Jul 20251910 AMAQI
21st Jul 20251911 AMAQI
21st Jul 20251612 PMAQI
21st Jul 2025161 PMAQI
21st Jul 2025182 PMAQI
21st Jul 2025183 PMAQI
21st Jul 2025184 PMAQI
21st Jul 2025185 PMAQI
21st Jul 2025186 PMAQI
21st Jul 2025187 PMAQI
21st Jul 2025198 PMAQI
21st Jul 2025219 PMAQI
21st Jul 20252110 PMAQI
21st Jul 20252011 PMAQI
22nd Jul 20252012 AMAQI
22nd Jul 2025201 AMAQI
22nd Jul 2025212 AMAQI
22nd Jul 2025183 AMAQI
22nd Jul 2025184 AMAQI

17°C14/20°C

22nd Jul 2025185 AMAQI
22nd Jul 2025196 AMAQI
22nd Jul 2025187 AMAQI
22nd Jul 2025198 AMAQI
22nd Jul 2025209 AMAQI
22nd Jul 20251910 AMAQI
22nd Jul 20251911 AMAQI
22nd Jul 20251912 PMAQI
22nd Jul 2025201 PMAQI
22nd Jul 2025202 PMAQI
22nd Jul 2025203 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025215 PMAQI
22nd Jul 2025226 PMAQI
22nd Jul 2025227 PMAQI
22nd Jul 2025228 PMAQI
22nd Jul 2025229 PMAQI
22nd Jul 20252010 PMAQI
22nd Jul 20252011 PMAQI
23rd Jul 20252012 AMAQI
23rd Jul 2025201 AMAQI
23rd Jul 2025212 AMAQI
23rd Jul 2025223 AMAQI
23rd Jul 2025204 AMAQI

18°C15/22°C

23rd Jul 2025205 AMAQI
23rd Jul 2025206 AMAQI
23rd Jul 2025217 AMAQI
23rd Jul 2025238 AMAQI
23rd Jul 2025269 AMAQI
23rd Jul 20252910 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20253112 PMAQI
23rd Jul 2025291 PMAQI
23rd Jul 2025262 PMAQI
23rd Jul 2025263 PMAQI
23rd Jul 2025274 PMAQI
23rd Jul 2025285 PMAQI
23rd Jul 2025376 PMAQI
23rd Jul 2025247 PMAQI
23rd Jul 2025288 PMAQI
23rd Jul 2025279 PMAQI
23rd Jul 20252410 PMAQI
23rd Jul 20252411 PMAQI
24th Jul 20252412 AMAQI
24th Jul 2025241 AMAQI
24th Jul 2025322 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025394 AMAQI

18°C16/20°C

24th Jul 2025405 AMAQI
24th Jul 2025386 AMAQI
24th Jul 2025397 AMAQI
24th Jul 2025408 AMAQI
24th Jul 2025459 AMAQI
24th Jul 20254210 AMAQI
24th Jul 20254011 AMAQI
24th Jul 20253512 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025412 PMAQI
24th Jul 2025383 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025425 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025307 PMAQI
24th Jul 2025288 PMAQI
24th Jul 2025339 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253411 PMAQI
25th Jul 20253512 AMAQI
25th Jul 2025351 AMAQI
25th Jul 2025262 AMAQI
25th Jul 2025253 AMAQI
25th Jul 2025234 AMAQI

18°C16/20°C

25th Jul 2025265 AMAQI
25th Jul 2025346 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025298 AMAQI
25th Jul 2025269 AMAQI
25th Jul 20252210 AMAQI
25th Jul 20252111 AMAQI
25th Jul 20252012 PMAQI
25th Jul 2025231 PMAQI
25th Jul 2025262 PMAQI
25th Jul 2025253 PMAQI
25th Jul 2025274 PMAQI
25th Jul 2025275 PMAQI
25th Jul 2025286 PMAQI
25th Jul 2025307 PMAQI
25th Jul 2025308 PMAQI
25th Jul 2025309 PMAQI
25th Jul 20252910 PMAQI
25th Jul 20253111 PMAQI
26th Jul 20253012 AMAQI
26th Jul 2025301 AMAQI
26th Jul 2025382 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025554 AMAQI

19°C18/20°C

26th Jul 2025565 AMAQI
26th Jul 2025556 AMAQI
26th Jul 2025567 AMAQI
26th Jul 2025548 AMAQI
26th Jul 2025549 AMAQI
26th Jul 20255710 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255212 PMAQI
26th Jul 2025531 PMAQI
26th Jul 2025532 PMAQI
26th Jul 2025483 PMAQI
26th Jul 2025424 PMAQI
26th Jul 2025425 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025387 PMAQI
26th Jul 2025338 PMAQI
26th Jul 2025379 PMAQI
26th Jul 20254910 PMAQI
26th Jul 20254811 PMAQI
27th Jul 20254612 AMAQI
27th Jul 2025491 AMAQI
27th Jul 2025432 AMAQI
27th Jul 2025343 AMAQI
27th Jul 2025264 AMAQI

19°C17/22°C

27th Jul 2025245 AMAQI
27th Jul 2025226 AMAQI
27th Jul 2025207 AMAQI
27th Jul 2025218 AMAQI
27th Jul 2025179 AMAQI
27th Jul 20251710 AMAQI
27th Jul 20251611 AMAQI
27th Jul 20251612 PMAQI
27th Jul 2025241 PMAQI
27th Jul 2025262 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025244 PMAQI
27th Jul 2025275 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025337 PMAQI
27th Jul 2025298 PMAQI
27th Jul 2025289 PMAQI
27th Jul 20252810 PMAQI
27th Jul 20252711 PMAQI
28th Jul 20252812 AMAQI
28th Jul 2025281 AMAQI
28th Jul 2025272 AMAQI
28th Jul 2025303 AMAQI
28th Jul 2025314 AMAQI

18°C17/19°C

28th Jul 2025305 AMAQI
28th Jul 2025276 AMAQI
28th Jul 2025267 AMAQI
28th Jul 2025288 AMAQI
28th Jul 2025299 AMAQI
28th Jul 20252810 AMAQI
28th Jul 20253111 AMAQI
28th Jul 20253412 PMAQI
28th Jul 2025331 PMAQI
28th Jul 2025282 PMAQI
28th Jul 2025283 PMAQI
28th Jul 2025274 PMAQI
28th Jul 2025285 PMAQI
28th Jul 2025326 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025318 PMAQI
28th Jul 2025319 PMAQI
28th Jul 20253010 PMAQI
28th Jul 20253011 PMAQI
29th Jul 20253012 AMAQI
29th Jul 2025281 AMAQI
29th Jul 2025362 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025464 AMAQI

18°C16/20°C

29th Jul 2025445 AMAQI
29th Jul 2025466 AMAQI
29th Jul 2025507 AMAQI
29th Jul 2025528 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255510 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20253712 PMAQI
29th Jul 2025301 PMAQI
29th Jul 2025312 PMAQI
29th Jul 2025323 PMAQI
29th Jul 2025354 PMAQI
29th Jul 2025365 PMAQI
29th Jul 2025346 PMAQI
29th Jul 2025327 PMAQI
29th Jul 2025328 PMAQI
29th Jul 2025369 PMAQI
29th Jul 20254010 PMAQI
29th Jul 20253911 PMAQI
30th Jul 20254012 AMAQI
30th Jul 2025401 AMAQI
30th Jul 2025372 AMAQI
30th Jul 2025273 AMAQI
30th Jul 2025274 AMAQI

18°C16/19°C

30th Jul 2025275 AMAQI
30th Jul 2025326 AMAQI
30th Jul 2025387 AMAQI
30th Jul 2025468 AMAQI
30th Jul 2025509 AMAQI
30th Jul 20254610 AMAQI
30th Jul 20253211 AMAQI
30th Jul 20253112 PMAQI
30th Jul 2025331 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025274 PMAQI
30th Jul 2025275 PMAQI
30th Jul 2025266 PMAQI
30th Jul 2025287 PMAQI
30th Jul 2025328 PMAQI
30th Jul 2025329 PMAQI
30th Jul 20253210 PMAQI
30th Jul 20253211 PMAQI
31st Jul 20253212 AMAQI
31st Jul 2025321 AMAQI
31st Jul 2025322 AMAQI
31st Jul 2025323 AMAQI
31st Jul 2025284 AMAQI

18°C16/20°C

31st Jul 2025295 AMAQI
31st Jul 2025346 AMAQI
31st Jul 2025387 AMAQI
31st Jul 2025338 AMAQI
31st Jul 2025339 AMAQI
31st Jul 20253610 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20252212 PMAQI
31st Jul 2025231 PMAQI
31st Jul 2025232 PMAQI
31st Jul 2025223 PMAQI
31st Jul 2025224 PMAQI
31st Jul 2025225 PMAQI
31st Jul 2025206 PMAQI
31st Jul 2025207 PMAQI
31st Jul 2025228 PMAQI
31st Jul 2025239 PMAQI
31st Jul 20252410 PMAQI
31st Jul 20252211 PMAQI
1st Aug 20252212 AMAQI
1st Aug 2025231 AMAQI
1st Aug 2025192 AMAQI
1st Aug 2025223 AMAQI
1st Aug 2025194 AMAQI

19°C17/20°C

1st Aug 2025255 AMAQI
1st Aug 2025196 AMAQI
1st Aug 2025247 AMAQI
1st Aug 2025238 AMAQI
1st Aug 2025289 AMAQI
1st Aug 20252810 AMAQI
1st Aug 20252311 AMAQI
1st Aug 20252412 PMAQI
1st Aug 2025221 PMAQI
1st Aug 2025232 PMAQI
1st Aug 2025223 PMAQI
1st Aug 2025224 PMAQI
1st Aug 2025205 PMAQI
1st Aug 2025206 PMAQI
1st Aug 2025207 PMAQI
1st Aug 2025218 PMAQI
1st Aug 2025229 PMAQI
1st Aug 20252210 PMAQI
1st Aug 20252211 PMAQI
2nd Aug 20252212 AMAQI
2nd Aug 2025221 AMAQI
2nd Aug 2025202 AMAQI
2nd Aug 2025193 AMAQI
2nd Aug 2025214 AMAQI

18°C17/19°C

2nd Aug 2025225 AMAQI
5 AM
2nd Aug 2025216 AMAQI
2nd Aug 2025197 AMAQI
2nd Aug 2025218 AMAQI
2nd Aug 2025279 AMAQI
2nd Aug 20252310 AMAQI
2nd Aug 20251711 AMAQI
2nd Aug 20252412 PMAQI
2nd Aug 2025221 PMAQI
1 PM
2nd Aug 2025212 PMAQI
2nd Aug 2025183 PMAQI
2nd Aug 2025214 PMAQI
2nd Aug 2025215 PMAQI
2nd Aug 2025206 PMAQI
2nd Aug 2025197 PMAQI
2nd Aug 2025208 PMAQI
2nd Aug 2025209 PMAQI
9 PM
1 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 10 AM

31AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
2 PM - 9 PM

28AQI

8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 10 AM (Avg. 31), while the lowest AQI was between 2 PM to 9 PM (Avg. 28).
Night time
Avg. Highest Time
12 AM - 11 PM

30AQI

7 hours / Day
210 hours / Month
Avg. Lowest Time
12 AM - 11 PM

30AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 30), while the lowest AQI was between 12 AM to 11 PM (Avg. 30).

2025 Days Vs Air Quality

Sea Railroader, Grande Synthe, Hauts De France, France

2025

65%

138

31%

66

4%

9

Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)

Good
138 Days
Moderate
66 Days
Poor
9 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 65%

Health Risk Level:

Moderate

In 2025, 65% of 214 days were within WHO’s safe air quality limits, and 35% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.

Annual Air Quality Insights

Sea Railroader, Grande Synthe, Hauts De France, 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.

1st January 2025
36AQI
2nd January 2025
28AQI
3rd January 2025
31AQI
4th January 2025
51AQI
5th January 2025
36AQI
6th January 2025
27AQI
7th January 2025
26AQI
8th January 2025
38AQI
9th January 2025
32AQI
10th January 2025
62AQI
11th January 2025
75AQI
12th January 2025
55AQI
13th January 2025
90AQI
14th January 2025
89AQI
15th January 2025
81AQI
16th January 2025
76AQI
17th January 2025
79AQI
18th January 2025
77AQI
19th January 2025
81AQI
20th January 2025
102AQI
21st January 2025
89AQI
22nd January 2025
99AQI
23rd January 2025
58AQI
24th January 2025
45AQI
25th January 2025
39AQI
26th January 2025
33AQI
27th January 2025
30AQI
28th January 2025
31AQI
29th January 2025
30AQI
30th January 2025
31AQI
31st January 2025
38AQI
1st February 2025
64AQI
2nd February 2025
81AQI
3rd February 2025
95AQI
4th February 2025
75AQI
5th February 2025
67AQI
6th February 2025
59AQI
7th February 2025
56AQI
8th February 2025
66AQI
9th February 2025
48AQI
10th February 2025
117AQI
11th February 2025
118AQI
12th February 2025
76AQI
13th February 2025
79AQI
14th February 2025
104AQI
15th February 2025
100AQI
16th February 2025
78AQI
17th February 2025
74AQI
18th February 2025
83AQI
19th February 2025
89AQI
20th February 2025
81AQI
21st February 2025
58AQI
22nd February 2025
54AQI
23rd February 2025
48AQI
24th February 2025
33AQI
25th February 2025
48AQI
26th February 2025
38AQI
27th February 2025
30AQI
28th February 2025
41AQI
1st March 2025
39AQI
2nd March 2025
75AQI
3rd March 2025
112AQI
4th March 2025
127AQI
5th March 2025
125AQI
6th March 2025
95AQI
7th March 2025
58AQI
8th March 2025
69AQI
9th March 2025
92AQI
10th March 2025
141AQI
11th March 2025
84AQI
12th March 2025
46AQI
13th March 2025
31AQI
14th March 2025
34AQI
15th March 2025
43AQI
16th March 2025
44AQI
17th March 2025
39AQI
18th March 2025
45AQI
19th March 2025
84AQI
20th March 2025
79AQI
21st March 2025
61AQI
22nd March 2025
46AQI
23rd March 2025
44AQI
24th March 2025
93AQI
25th March 2025
111AQI
26th March 2025
51AQI
27th March 2025
66AQI
28th March 2025
54AQI
29th March 2025
39AQI
30th March 2025
41AQI
31st March 2025
28AQI
1st April 2025
45AQI
2nd April 2025
51AQI
3rd April 2025
55AQI
4th April 2025
71AQI
5th April 2025
62AQI
6th April 2025
37AQI
7th April 2025
36AQI
8th April 2025
53AQI
9th April 2025
33AQI
10th April 2025
27AQI
11th April 2025
58AQI
12th April 2025
71AQI
13th April 2025
46AQI
14th April 2025
34AQI
15th April 2025
55AQI
16th April 2025
21AQI
17th April 2025
41AQI
18th April 2025
38AQI
19th April 2025
47AQI
20th April 2025
42AQI
21st April 2025
65AQI
22nd April 2025
46AQI
23rd April 2025
23AQI
24th April 2025
59AQI
25th April 2025
44AQI
26th April 2025
63AQI
27th April 2025
50AQI
28th April 2025
53AQI
29th April 2025
62AQI
30th April 2025
61AQI
1st May 2025
80AQI
2nd May 2025
73AQI
3rd May 2025
50AQI
4th May 2025
24AQI
5th May 2025
29AQI
6th May 2025
22AQI
7th May 2025
23AQI
8th May 2025
33AQI
9th May 2025
33AQI
10th May 2025
38AQI
11th May 2025
33AQI
12th May 2025
44AQI
13th May 2025
53AQI
14th May 2025
52AQI
15th May 2025
46AQI
16th May 2025
40AQI
17th May 2025
41AQI
18th May 2025
45AQI
19th May 2025
42AQI
20th May 2025
32AQI
21st May 2025
49AQI
22nd May 2025
36AQI
23rd May 2025
31AQI
24th May 2025
30AQI
25th May 2025
27AQI
26th May 2025
33AQI
27th May 2025
26AQI
28th May 2025
30AQI
29th May 2025
32AQI
30th May 2025
22AQI
31st May 2025
34AQI
1st June 2025
35AQI
2nd June 2025
29AQI
3rd June 2025
25AQI
4th June 2025
22AQI
5th June 2025
20AQI
6th June 2025
23AQI
7th June 2025
19AQI
8th June 2025
22AQI
9th June 2025
50AQI
10th June 2025
55AQI
11th June 2025
45AQI
12th June 2025
49AQI
13th June 2025
55AQI
14th June 2025
51AQI
15th June 2025
39AQI
16th June 2025
40AQI
17th June 2025
39AQI
18th June 2025
40AQI
19th June 2025
44AQI
20th June 2025
45AQI
21st June 2025
39AQI
22nd June 2025
36AQI
23rd June 2025
30AQI
24th June 2025
31AQI
25th June 2025
29AQI
26th June 2025
30AQI
27th June 2025
30AQI
28th June 2025
21AQI
29th June 2025
21AQI
30th June 2025
29AQI
1st July 2025
45AQI
2nd July 2025
46AQI
3rd July 2025
34AQI
4th July 2025
27AQI
5th July 2025
23AQI
6th July 2025
20AQI
7th July 2025
22AQI
8th July 2025
29AQI
9th July 2025
29AQI
10th July 2025
29AQI
11th July 2025
28AQI
12th July 2025
24AQI
13th July 2025
26AQI
14th July 2025
39AQI
15th July 2025
35AQI
16th July 2025
34AQI
17th July 2025
35AQI
18th July 2025
38AQI
19th July 2025
42AQI
20th July 2025
24AQI
21st July 2025
20AQI
22nd July 2025
20AQI
23rd July 2025
25AQI
24th July 2025
36AQI
25th July 2025
28AQI
26th July 2025
46AQI
27th July 2025
28AQI
28th July 2025
30AQI
29th July 2025
39AQI
30th July 2025
33AQI
31st July 2025
27AQI
1st August 2025
22AQI

55AQI

70AQI

68AQI

48AQI

38AQI

35AQI

31AQI

22AQI

No. of days

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

202549AQI

16
14
1
7
18
3
13
13
5
16
14
27
4
27
3
31
1
138
66
9

Highest AQI recorded in

February

70AQI

Lowest AQI recorded in

August

22AQI

202440AQI

23
8
26
3
23
8
30
20
11
26
4
30
1
29
2
24
5
1
27
4
17
13
24
7
299
66
1

Highest AQI recorded in

November

49AQI

Lowest AQI recorded in

July

31AQI

202342AQI

22
8
15
6
3
2
26
5
17
13
17
14
17
13
28
1
28
3
21
8
1
28
3
26
2
1
23
7
1
268
83
6
2

Highest AQI recorded in

February

63AQI

Lowest AQI recorded in

August

32AQI

202243AQI

20
10
1
18
2
7
16
7
19
11
25
5
22
2
24
1
21
7
30
1
24
6
16
14
1
227
74
9

Highest AQI recorded in

March

74AQI

Lowest AQI recorded in

June

26AQI

202139AQI

17
24
4
24
6
1
25
3
28
3
15
7
3
4
26
5
31
17
11
27
4
22
6
25
6
281
55
4
4

Highest AQI recorded in

June

69AQI

Lowest AQI recorded in

January

26AQI

202025AQI

13
21
18
30
31
30
1
28
30
23
7
16
2
240
10

Highest AQI recorded in

November

34AQI

Lowest AQI recorded in

July

18AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2025(Avg.)
49AQI
Least Polluted Year Recorded
2020(Avg.)
25AQI

Sea Railroader's annual 2025 AQI (49) shows an average percentage change of 34.7% (worsened AQI) compared to previous years: 2020 (25), 2021 (39), 2022 (43), 2023 (42), 2024 (40).