Analyse Historique de la Qualité de l'Air à Chester, Illinois, United States
Plongez dans des détails sur la qualité de l'air avec des données historiques, des tendances mensuelles et annuelles à portée de main !
Bon
050
Modéré
100
Pauvre
150
Non sain
200
Sévère
300
Dangereux
301+
Analyse de la qualité de l'air de Août
Chester, Illinois, United States
2021
2022
2023
2024
2025
AQI
.
Jours
Tendances AQI : Le plus élevé et le plus bas
AQI le plus élevé enregistré le
1st Aug 2021
97AQIAQI le plus bas enregistré le
27th Aug 2023
21AQIAnalyse du même jour (8th August ):
Ce jour-là, l'AQI au cours des 5 années a varié de manière significative : 2025 se classe 2nd le plus élevé AQI à 52 de Modéré qualité de l'air, montrant une amélioration par rapport à 2021 le même jour.
Télécharger les données annuelles 2024
Rapport mondial sur la qualité de l'air
Tendance AQI Jour & Nuit : 9th Aug - 10th Aug 2025
Chester, Illinois, United States
AQI
Jour
Nuit
.
5 AM9th Aug 2025
8 PM
4 AM10th Aug 2025
Heure du jour
Heure moyenne la plus haute
6PM9th Aug
39AQI
Heure moyenne la plus basse
10AM9th Aug
34AQI
Heure de la nuit
Heure moyenne la plus haute
9PM9th Aug
38AQI
Heure moyenne la plus basse
3AM10th Aug
31AQI
Au cours des 24 dernières heures,
L'AQI de Chester a atteint son point le plus élevé de 39 à 6 PM pendant le Jour, tandis que le point le plus bas, 31, a été enregistré à 3 AM pendant le Nuit entre 9th Aug et 10th Aug 2025.
Tendance AQI Jour & Nuit : Jul - Aug 2025
Chester, Illinois, United States
JulAug
11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th
Jour
Nuit
11th Jul 2025435 AMAQI
11th Jul 2025446 AMAQI
11th Jul 2025457 AMAQI
11th Jul 2025458 AMAQI
11th Jul 2025459 AMAQI
11th Jul 20254410 AMAQI
11th Jul 20254511 AMAQI
11th Jul 20254512 PMAQI
11th Jul 2025451 PMAQI
11th Jul 2025442 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025424 PMAQI
11th Jul 2025415 PMAQI
11th Jul 2025416 PMAQI
11th Jul 2025437 PMAQI
11th Jul 2025438 PMAQI
11th Jul 2025419 PMAQI
11th Jul 20254210 PMAQI
11th Jul 20254211 PMAQI
12th Jul 20254112 AMAQI
12th Jul 2025411 AMAQI
12th Jul 2025392 AMAQI
12th Jul 2025383 AMAQI
12th Jul 2025374 AMAQI
28°C21/36°C
12th Jul 2025355 AMAQI
12th Jul 2025336 AMAQI
12th Jul 2025367 AMAQI
12th Jul 2025368 AMAQI
12th Jul 2025369 AMAQI
12th Jul 20254010 AMAQI
12th Jul 20254211 AMAQI
12th Jul 20254112 PMAQI
12th Jul 2025411 PMAQI
12th Jul 2025402 PMAQI
12th Jul 2025403 PMAQI
12th Jul 2025394 PMAQI
12th Jul 2025385 PMAQI
12th Jul 2025366 PMAQI
12th Jul 2025377 PMAQI
12th Jul 2025388 PMAQI
12th Jul 2025389 PMAQI
12th Jul 20253710 PMAQI
12th Jul 20253911 PMAQI
13th Jul 20253812 AMAQI
13th Jul 2025361 AMAQI
13th Jul 2025332 AMAQI
13th Jul 2025333 AMAQI
13th Jul 2025324 AMAQI
27°C24/30°C
13th Jul 2025325 AMAQI
13th Jul 2025326 AMAQI
13th Jul 2025347 AMAQI
13th Jul 2025348 AMAQI
13th Jul 2025349 AMAQI
13th Jul 20253110 AMAQI
13th Jul 20253011 AMAQI
13th Jul 20253512 PMAQI
13th Jul 2025341 PMAQI
13th Jul 2025362 PMAQI
13th Jul 2025333 PMAQI
13th Jul 2025334 PMAQI
13th Jul 2025335 PMAQI
13th Jul 2025336 PMAQI
13th Jul 2025347 PMAQI
13th Jul 2025348 PMAQI
13th Jul 2025339 PMAQI
13th Jul 20253210 PMAQI
13th Jul 20253311 PMAQI
14th Jul 20253212 AMAQI
14th Jul 2025321 AMAQI
14th Jul 2025312 AMAQI
14th Jul 2025323 AMAQI
14th Jul 2025324 AMAQI
25°C22/33°C
14th Jul 2025325 AMAQI
14th Jul 2025326 AMAQI
14th Jul 2025337 AMAQI
14th Jul 2025338 AMAQI
14th Jul 2025349 AMAQI
14th Jul 20253510 AMAQI
14th Jul 20253711 AMAQI
14th Jul 20254112 PMAQI
14th Jul 2025411 PMAQI
14th Jul 2025402 PMAQI
14th Jul 2025393 PMAQI
14th Jul 2025384 PMAQI
14th Jul 2025385 PMAQI
14th Jul 2025376 PMAQI
14th Jul 2025367 PMAQI
14th Jul 2025358 PMAQI
14th Jul 2025339 PMAQI
14th Jul 20253210 PMAQI
14th Jul 20253111 PMAQI
15th Jul 20252912 AMAQI
15th Jul 2025281 AMAQI
15th Jul 2025262 AMAQI
15th Jul 2025283 AMAQI
15th Jul 2025274 AMAQI
24°C21/28°C
15th Jul 2025285 AMAQI
15th Jul 2025296 AMAQI
15th Jul 2025297 AMAQI
15th Jul 2025288 AMAQI
15th Jul 2025289 AMAQI
15th Jul 20252910 AMAQI
15th Jul 20253111 AMAQI
15th Jul 20253212 PMAQI
15th Jul 2025321 PMAQI
15th Jul 2025342 PMAQI
15th Jul 2025353 PMAQI
15th Jul 2025344 PMAQI
15th Jul 2025345 PMAQI
15th Jul 2025346 PMAQI
15th Jul 2025327 PMAQI
15th Jul 2025318 PMAQI
15th Jul 2025329 PMAQI
15th Jul 20253210 PMAQI
15th Jul 20253211 PMAQI
16th Jul 20253212 AMAQI
16th Jul 2025311 AMAQI
16th Jul 2025322 AMAQI
16th Jul 2025313 AMAQI
16th Jul 2025314 AMAQI
26°C21/30°C
16th Jul 2025315 AMAQI
16th Jul 2025316 AMAQI
16th Jul 2025337 AMAQI
16th Jul 2025328 AMAQI
16th Jul 2025339 AMAQI
16th Jul 20253410 AMAQI
16th Jul 20253511 AMAQI
16th Jul 20253512 PMAQI
16th Jul 2025351 PMAQI
16th Jul 2025362 PMAQI
16th Jul 2025363 PMAQI
16th Jul 2025344 PMAQI
16th Jul 2025355 PMAQI
16th Jul 2025356 PMAQI
16th Jul 2025357 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025369 PMAQI
16th Jul 20253710 PMAQI
16th Jul 20253511 PMAQI
17th Jul 20253212 AMAQI
17th Jul 2025311 AMAQI
17th Jul 2025292 AMAQI
17th Jul 2025283 AMAQI
17th Jul 2025274 AMAQI
28°C22/36°C
17th Jul 2025285 AMAQI
17th Jul 2025276 AMAQI
17th Jul 2025297 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20252910 AMAQI
17th Jul 20253211 AMAQI
17th Jul 20253512 PMAQI
17th Jul 2025381 PMAQI
17th Jul 2025372 PMAQI
17th Jul 2025373 PMAQI
17th Jul 2025364 PMAQI
17th Jul 2025355 PMAQI
17th Jul 2025336 PMAQI
17th Jul 2025347 PMAQI
17th Jul 2025338 PMAQI
17th Jul 2025339 PMAQI
17th Jul 20253110 PMAQI
17th Jul 20253011 PMAQI
18th Jul 20252912 AMAQI
18th Jul 2025271 AMAQI
18th Jul 2025232 AMAQI
18th Jul 2025223 AMAQI
18th Jul 2025224 AMAQI
27°C23/34°C
18th Jul 2025215 AMAQI
18th Jul 2025226 AMAQI
18th Jul 2025257 AMAQI
18th Jul 2025258 AMAQI
18th Jul 2025289 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20252912 PMAQI
18th Jul 2025301 PMAQI
18th Jul 2025282 PMAQI
18th Jul 2025273 PMAQI
18th Jul 2025274 PMAQI
18th Jul 2025275 PMAQI
18th Jul 2025276 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025268 PMAQI
18th Jul 2025299 PMAQI
18th Jul 20252810 PMAQI
18th Jul 20252811 PMAQI
19th Jul 20252712 AMAQI
19th Jul 2025281 AMAQI
19th Jul 2025292 AMAQI
19th Jul 2025313 AMAQI
19th Jul 2025304 AMAQI
27°C23/32°C
19th Jul 2025265 AMAQI
19th Jul 2025286 AMAQI
19th Jul 2025307 AMAQI
19th Jul 2025298 AMAQI
19th Jul 2025319 AMAQI
19th Jul 20253110 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025321 PMAQI
19th Jul 2025322 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025335 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025317 PMAQI
19th Jul 2025318 PMAQI
19th Jul 2025319 PMAQI
19th Jul 20253110 PMAQI
19th Jul 20253111 PMAQI
20th Jul 20253112 AMAQI
20th Jul 2025331 AMAQI
20th Jul 2025352 AMAQI
20th Jul 2025353 AMAQI
20th Jul 2025364 AMAQI
27°C23/32°C
20th Jul 2025365 AMAQI
20th Jul 2025386 AMAQI
20th Jul 2025397 AMAQI
20th Jul 2025388 AMAQI
20th Jul 2025399 AMAQI
20th Jul 20253710 AMAQI
20th Jul 20253511 AMAQI
20th Jul 20253412 PMAQI
20th Jul 2025341 PMAQI
20th Jul 2025342 PMAQI
20th Jul 2025363 PMAQI
20th Jul 2025374 PMAQI
20th Jul 2025375 PMAQI
20th Jul 2025376 PMAQI
20th Jul 2025357 PMAQI
20th Jul 2025358 PMAQI
20th Jul 2025369 PMAQI
20th Jul 20253610 PMAQI
20th Jul 20253611 PMAQI
21st Jul 20253512 AMAQI
21st Jul 2025331 AMAQI
21st Jul 2025332 AMAQI
21st Jul 2025313 AMAQI
21st Jul 2025304 AMAQI
30°C24/36°C
21st Jul 2025275 AMAQI
21st Jul 2025276 AMAQI
21st Jul 2025287 AMAQI
21st Jul 2025278 AMAQI
21st Jul 2025289 AMAQI
21st Jul 20252910 AMAQI
21st Jul 20253411 AMAQI
21st Jul 20253512 PMAQI
21st Jul 2025381 PMAQI
21st Jul 2025392 PMAQI
21st Jul 2025383 PMAQI
21st Jul 2025414 PMAQI
21st Jul 2025405 PMAQI
21st Jul 2025406 PMAQI
21st Jul 2025347 PMAQI
21st Jul 2025338 PMAQI
21st Jul 2025399 PMAQI
21st Jul 20253610 PMAQI
21st Jul 20253611 PMAQI
22nd Jul 20253712 AMAQI
22nd Jul 2025401 AMAQI
22nd Jul 2025432 AMAQI
22nd Jul 2025413 AMAQI
22nd Jul 2025394 AMAQI
27°C23/31°C
22nd Jul 2025385 AMAQI
22nd Jul 2025366 AMAQI
22nd Jul 2025367 AMAQI
22nd Jul 2025368 AMAQI
22nd Jul 2025379 AMAQI
22nd Jul 20253910 AMAQI
22nd Jul 20253911 AMAQI
22nd Jul 20254012 PMAQI
22nd Jul 2025401 PMAQI
22nd Jul 2025412 PMAQI
22nd Jul 2025423 PMAQI
22nd Jul 2025444 PMAQI
22nd Jul 2025435 PMAQI
22nd Jul 2025436 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025428 PMAQI
22nd Jul 2025429 PMAQI
22nd Jul 20254010 PMAQI
22nd Jul 20253911 PMAQI
23rd Jul 20253912 AMAQI
23rd Jul 2025361 AMAQI
23rd Jul 2025332 AMAQI
23rd Jul 2025333 AMAQI
23rd Jul 2025324 AMAQI
28°C23/34°C
23rd Jul 2025325 AMAQI
23rd Jul 2025336 AMAQI
23rd Jul 2025357 AMAQI
23rd Jul 2025348 AMAQI
23rd Jul 2025349 AMAQI
23rd Jul 20253510 AMAQI
23rd Jul 20253611 AMAQI
23rd Jul 20253812 PMAQI
23rd Jul 2025391 PMAQI
23rd Jul 2025392 PMAQI
23rd Jul 2025393 PMAQI
23rd Jul 2025394 PMAQI
23rd Jul 2025425 PMAQI
23rd Jul 2025426 PMAQI
23rd Jul 2025397 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025409 PMAQI
23rd Jul 20254110 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20253712 AMAQI
24th Jul 2025351 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025353 AMAQI
24th Jul 2025364 AMAQI
30°C25/36°C
24th Jul 2025355 AMAQI
24th Jul 2025366 AMAQI
24th Jul 2025367 AMAQI
24th Jul 2025378 AMAQI
24th Jul 2025369 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20254011 AMAQI
24th Jul 20254312 PMAQI
24th Jul 2025421 PMAQI
24th Jul 2025432 PMAQI
24th Jul 2025433 PMAQI
24th Jul 2025434 PMAQI
24th Jul 2025425 PMAQI
24th Jul 2025436 PMAQI
24th Jul 2025417 PMAQI
24th Jul 2025418 PMAQI
24th Jul 2025429 PMAQI
24th Jul 20254310 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20254312 AMAQI
25th Jul 2025431 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025433 AMAQI
25th Jul 2025444 AMAQI
30°C25/37°C
25th Jul 2025445 AMAQI
25th Jul 2025446 AMAQI
25th Jul 2025447 AMAQI
25th Jul 2025438 AMAQI
25th Jul 2025449 AMAQI
25th Jul 20254510 AMAQI
25th Jul 20254611 AMAQI
25th Jul 20254612 PMAQI
25th Jul 2025461 PMAQI
25th Jul 2025482 PMAQI
25th Jul 2025493 PMAQI
25th Jul 2025494 PMAQI
25th Jul 2025465 PMAQI
25th Jul 2025476 PMAQI
25th Jul 2025457 PMAQI
25th Jul 2025448 PMAQI
25th Jul 2025419 PMAQI
25th Jul 20254010 PMAQI
25th Jul 20254011 PMAQI
26th Jul 20254012 AMAQI
26th Jul 2025371 AMAQI
26th Jul 2025332 AMAQI
26th Jul 2025323 AMAQI
26th Jul 2025304 AMAQI
29°C25/35°C
26th Jul 2025305 AMAQI
26th Jul 2025306 AMAQI
26th Jul 2025317 AMAQI
26th Jul 2025338 AMAQI
26th Jul 2025359 AMAQI
26th Jul 20253910 AMAQI
26th Jul 20254111 AMAQI
26th Jul 20254012 PMAQI
26th Jul 2025411 PMAQI
26th Jul 2025412 PMAQI
26th Jul 2025433 PMAQI
26th Jul 2025414 PMAQI
26th Jul 2025395 PMAQI
26th Jul 2025396 PMAQI
26th Jul 2025387 PMAQI
26th Jul 2025388 PMAQI
26th Jul 2025399 PMAQI
26th Jul 20254010 PMAQI
26th Jul 20253911 PMAQI
27th Jul 20254112 AMAQI
27th Jul 2025461 AMAQI
27th Jul 2025672 AMAQI
27th Jul 2025683 AMAQI
27th Jul 2025664 AMAQI
29°C25/35°C
27th Jul 2025655 AMAQI
27th Jul 2025616 AMAQI
27th Jul 2025607 AMAQI
27th Jul 2025618 AMAQI
27th Jul 2025619 AMAQI
27th Jul 20255810 AMAQI
27th Jul 20255611 AMAQI
27th Jul 20255512 PMAQI
27th Jul 2025531 PMAQI
27th Jul 2025542 PMAQI
27th Jul 2025533 PMAQI
27th Jul 2025534 PMAQI
27th Jul 2025515 PMAQI
27th Jul 2025496 PMAQI
27th Jul 2025587 PMAQI
27th Jul 2025588 PMAQI
27th Jul 2025479 PMAQI
27th Jul 20254610 PMAQI
27th Jul 20254611 PMAQI
28th Jul 20254512 AMAQI
28th Jul 2025401 AMAQI
28th Jul 2025312 AMAQI
28th Jul 2025313 AMAQI
28th Jul 2025314 AMAQI
29°C24/33°C
28th Jul 2025335 AMAQI
28th Jul 2025356 AMAQI
28th Jul 2025377 AMAQI
28th Jul 2025368 AMAQI
28th Jul 2025379 AMAQI
28th Jul 20253710 AMAQI
28th Jul 20253911 AMAQI
28th Jul 20254012 PMAQI
28th Jul 2025421 PMAQI
28th Jul 2025442 PMAQI
28th Jul 2025413 PMAQI
28th Jul 2025414 PMAQI
28th Jul 2025405 PMAQI
28th Jul 2025416 PMAQI
28th Jul 2025367 PMAQI
28th Jul 2025368 PMAQI
28th Jul 2025409 PMAQI
28th Jul 20253910 PMAQI
28th Jul 20254211 PMAQI
29th Jul 20254412 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025442 AMAQI
29th Jul 2025463 AMAQI
29th Jul 2025464 AMAQI
31°C25/37°C
29th Jul 2025445 AMAQI
29th Jul 2025456 AMAQI
29th Jul 2025467 AMAQI
29th Jul 2025468 AMAQI
29th Jul 2025469 AMAQI
29th Jul 20254510 AMAQI
29th Jul 20254511 AMAQI
29th Jul 20254512 PMAQI
29th Jul 2025461 PMAQI
29th Jul 2025462 PMAQI
29th Jul 2025463 PMAQI
29th Jul 2025464 PMAQI
29th Jul 2025465 PMAQI
29th Jul 2025456 PMAQI
29th Jul 2025467 PMAQI
29th Jul 2025478 PMAQI
29th Jul 2025459 PMAQI
29th Jul 20254410 PMAQI
29th Jul 20254511 PMAQI
30th Jul 20254512 AMAQI
30th Jul 2025441 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025453 AMAQI
30th Jul 2025444 AMAQI
30°C25/36°C
30th Jul 2025445 AMAQI
30th Jul 2025466 AMAQI
30th Jul 2025477 AMAQI
30th Jul 2025488 AMAQI
30th Jul 2025479 AMAQI
30th Jul 20254710 AMAQI
30th Jul 20254911 AMAQI
30th Jul 20254912 PMAQI
30th Jul 2025501 PMAQI
30th Jul 2025492 PMAQI
30th Jul 2025493 PMAQI
30th Jul 2025494 PMAQI
30th Jul 2025495 PMAQI
30th Jul 2025496 PMAQI
30th Jul 2025497 PMAQI
30th Jul 2025498 PMAQI
30th Jul 2025479 PMAQI
30th Jul 20254710 PMAQI
30th Jul 20254711 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025451 AMAQI
31st Jul 2025422 AMAQI
31st Jul 2025423 AMAQI
31st Jul 2025424 AMAQI
29°C23/36°C
31st Jul 2025405 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025447 AMAQI
31st Jul 2025458 AMAQI
31st Jul 2025449 AMAQI
31st Jul 20254510 AMAQI
31st Jul 20254611 AMAQI
31st Jul 20254612 PMAQI
31st Jul 2025451 PMAQI
31st Jul 2025452 PMAQI
31st Jul 2025423 PMAQI
31st Jul 2025384 PMAQI
31st Jul 2025365 PMAQI
31st Jul 2025376 PMAQI
31st Jul 2025447 PMAQI
31st Jul 2025458 PMAQI
31st Jul 2025469 PMAQI
31st Jul 20254710 PMAQI
31st Jul 20254911 PMAQI
1st Aug 20254812 AMAQI
1st Aug 2025461 AMAQI
1st Aug 2025462 AMAQI
1st Aug 2025413 AMAQI
1st Aug 2025404 AMAQI
26°C23/29°C
1st Aug 2025395 AMAQI
1st Aug 2025406 AMAQI
1st Aug 2025437 AMAQI
1st Aug 2025478 AMAQI
1st Aug 2025499 AMAQI
1st Aug 20255110 AMAQI
1st Aug 20255211 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025491 PMAQI
1st Aug 2025482 PMAQI
1st Aug 2025483 PMAQI
1st Aug 2025484 PMAQI
1st Aug 2025505 PMAQI
1st Aug 2025486 PMAQI
1st Aug 2025497 PMAQI
1st Aug 2025488 PMAQI
1st Aug 2025499 PMAQI
1st Aug 20255110 PMAQI
1st Aug 20255311 PMAQI
2nd Aug 20255312 AMAQI
2nd Aug 2025531 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025554 AMAQI
23°C18/29°C
2nd Aug 2025535 AMAQI
2nd Aug 2025526 AMAQI
2nd Aug 2025527 AMAQI
2nd Aug 2025518 AMAQI
2nd Aug 2025509 AMAQI
2nd Aug 20255010 AMAQI
2nd Aug 20255011 AMAQI
2nd Aug 20254612 PMAQI
2nd Aug 2025431 PMAQI
2nd Aug 2025412 PMAQI
2nd Aug 2025413 PMAQI
2nd Aug 2025384 PMAQI
2nd Aug 2025365 PMAQI
2nd Aug 2025366 PMAQI
2nd Aug 2025477 PMAQI
2nd Aug 2025448 PMAQI
2nd Aug 2025419 PMAQI
2nd Aug 20254310 PMAQI
2nd Aug 20254611 PMAQI
3rd Aug 20254512 AMAQI
3rd Aug 2025461 AMAQI
3rd Aug 2025472 AMAQI
3rd Aug 2025463 AMAQI
3rd Aug 2025444 AMAQI
21°C14/26°C
3rd Aug 2025435 AMAQI
3rd Aug 2025456 AMAQI
3rd Aug 2025457 AMAQI
3rd Aug 2025438 AMAQI
3rd Aug 2025439 AMAQI
3rd Aug 20254310 AMAQI
3rd Aug 20254511 AMAQI
3rd Aug 20254612 PMAQI
3rd Aug 2025461 PMAQI
3rd Aug 2025462 PMAQI
3rd Aug 2025463 PMAQI
3rd Aug 2025464 PMAQI
3rd Aug 2025455 PMAQI
3rd Aug 2025456 PMAQI
3rd Aug 2025447 PMAQI
3rd Aug 2025438 PMAQI
3rd Aug 2025439 PMAQI
3rd Aug 20254210 PMAQI
3rd Aug 20254211 PMAQI
4th Aug 20254412 AMAQI
4th Aug 2025451 AMAQI
4th Aug 2025442 AMAQI
4th Aug 2025443 AMAQI
4th Aug 2025444 AMAQI
22°C13/29°C
4th Aug 2025445 AMAQI
4th Aug 2025446 AMAQI
4th Aug 2025447 AMAQI
4th Aug 2025448 AMAQI
4th Aug 2025479 AMAQI
4th Aug 20254810 AMAQI
4th Aug 20255011 AMAQI
4th Aug 20255412 PMAQI
4th Aug 2025571 PMAQI
4th Aug 2025592 PMAQI
4th Aug 2025603 PMAQI
4th Aug 2025604 PMAQI
4th Aug 2025625 PMAQI
4th Aug 2025626 PMAQI
4th Aug 2025467 PMAQI
4th Aug 2025528 PMAQI
4th Aug 2025579 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255611 PMAQI
5th Aug 20255512 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025602 AMAQI
5th Aug 2025593 AMAQI
5th Aug 2025594 AMAQI
22°C16/29°C
5th Aug 2025615 AMAQI
5th Aug 2025606 AMAQI
5th Aug 2025627 AMAQI
5th Aug 2025648 AMAQI
5th Aug 2025639 AMAQI
5th Aug 20256210 AMAQI
5th Aug 20256511 AMAQI
5th Aug 20256612 PMAQI
5th Aug 2025681 PMAQI
5th Aug 2025682 PMAQI
5th Aug 2025663 PMAQI
5th Aug 2025664 PMAQI
5th Aug 2025645 PMAQI
5th Aug 2025636 PMAQI
5th Aug 2025607 PMAQI
5th Aug 2025628 PMAQI
5th Aug 2025619 PMAQI
5th Aug 20256110 PMAQI
5th Aug 20256111 PMAQI
6th Aug 20256012 AMAQI
6th Aug 2025591 AMAQI
6th Aug 2025582 AMAQI
6th Aug 2025583 AMAQI
6th Aug 2025584 AMAQI
24°C19/31°C
6th Aug 2025585 AMAQI
6th Aug 2025576 AMAQI
6th Aug 2025597 AMAQI
6th Aug 2025608 AMAQI
6th Aug 2025609 AMAQI
6th Aug 20256110 AMAQI
6th Aug 20256411 AMAQI
6th Aug 20256612 PMAQI
6th Aug 2025671 PMAQI
6th Aug 2025662 PMAQI
6th Aug 2025663 PMAQI
6th Aug 2025644 PMAQI
6th Aug 2025645 PMAQI
6th Aug 2025616 PMAQI
6th Aug 2025617 PMAQI
6th Aug 2025568 PMAQI
6th Aug 2025509 PMAQI
6th Aug 20254910 PMAQI
6th Aug 20254611 PMAQI
7th Aug 20254812 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025432 AMAQI
7th Aug 2025403 AMAQI
7th Aug 2025374 AMAQI
26°C17/33°C
7th Aug 2025375 AMAQI
7th Aug 2025386 AMAQI
7th Aug 2025397 AMAQI
7th Aug 2025418 AMAQI
7th Aug 2025439 AMAQI
7th Aug 20255310 AMAQI
7th Aug 20255611 AMAQI
7th Aug 20255612 PMAQI
7th Aug 2025591 PMAQI
7th Aug 2025602 PMAQI
7th Aug 2025573 PMAQI
7th Aug 2025574 PMAQI
7th Aug 2025555 PMAQI
7th Aug 2025546 PMAQI
7th Aug 2025507 PMAQI
7th Aug 2025498 PMAQI
7th Aug 2025489 PMAQI
7th Aug 20254610 PMAQI
7th Aug 20254611 PMAQI
8th Aug 20254412 AMAQI
8th Aug 2025431 AMAQI
8th Aug 2025392 AMAQI
8th Aug 2025373 AMAQI
8th Aug 2025354 AMAQI
27°C21/35°C
8th Aug 2025365 AMAQI
8th Aug 2025356 AMAQI
8th Aug 2025367 AMAQI
8th Aug 2025378 AMAQI
8th Aug 2025369 AMAQI
8th Aug 20254010 AMAQI
8th Aug 20254011 AMAQI
8th Aug 20253812 PMAQI
8th Aug 2025361 PMAQI
8th Aug 2025382 PMAQI
8th Aug 2025403 PMAQI
8th Aug 2025404 PMAQI
8th Aug 2025405 PMAQI
8th Aug 2025406 PMAQI
8th Aug 2025397 PMAQI
8th Aug 2025398 PMAQI
8th Aug 2025389 PMAQI
8th Aug 20253610 PMAQI
8th Aug 20253711 PMAQI
9th Aug 20253812 AMAQI
9th Aug 2025381 AMAQI
9th Aug 2025362 AMAQI
9th Aug 2025363 AMAQI
9th Aug 2025354 AMAQI
29°C23/35°C
9th Aug 2025335 AMAQI
9th Aug 2025346 AMAQI
9th Aug 2025367 AMAQI
9th Aug 2025358 AMAQI
9th Aug 2025349 AMAQI
9th Aug 20253410 AMAQI
9th Aug 20253511 AMAQI
9th Aug 20253512 PMAQI
9th Aug 2025361 PMAQI
9th Aug 2025382 PMAQI
9th Aug 2025383 PMAQI
9th Aug 2025374 PMAQI
9th Aug 2025375 PMAQI
9th Aug 2025396 PMAQI
9th Aug 2025397 PMAQI
9th Aug 2025378 PMAQI
9th Aug 2025389 PMAQI
9th Aug 20253610 PMAQI
9th Aug 20253611 PMAQI
10th Aug 20253712 AMAQI
10th Aug 2025371 AMAQI
10th Aug 2025352 AMAQI
10th Aug 2025313 AMAQI
10th Aug 2025334 AMAQI
28°C22/35°C
5 AM
12 PM
8 PM
12 AM
4 AM
--°C/°C
Heure du jour
Heure moyenne la plus haute
5 AM - 8 PM
42AQI
16 heures / Jour
480 heures / Mois
Heure moyenne la plus basse
5 AM - 8 PM
42AQI
16 heures / Jour
480 heures / Mois
Au cours des 30 derniers jours, pendant la journée, l'AQI le plus élevé était entre 5 AM à 8 PM (Moyenne 42), tandis que l'AQI le plus bas était entre 5 AM à 8 PM (Moyenne 42).
Heure de la nuit
Heure moyenne la plus haute
12 AM - 11 PM
40AQI
8 heures / Jour
240 heures / Mois
Heure moyenne la plus basse
12 AM - 4 AM
40AQI
5 heures / Jour
150 heures / Mois
Au cours des 30 derniers jours, pendant la journée, l'AQI le plus élevé était entre 12 AM à 11 PM (Moyenne 40), tandis que l'AQI le plus bas était entre 12 AM à 4 AM (Moyenne 40).
Jours de 2025 Vs Qualité de l'Air
Chester, Illinois, United States
2025
85%
186
15%
33
0.4%
1
Nombre total de jours avec différentes catégories AQI au cours des 222 derniers jours de 2025 (143 jours restants)
Bon
186 JoursModéré
33 JoursPauvre
1 JoursNon sain
0 JoursSévère
0 JoursDangereux
0 JoursSous les limites sécuritaires de l'OMS pour la qualité de l'air : 85%
Niveau de risque sanitaire:
Faible
En 2025, 85% des 222 jours étaient dans les limites sécuritaires de l'OMS pour la qualité de l'air. Le risque de problèmes de santé est Faible, mais les effets à long terme, en particulier sur les personnes vulnérables, restent incertains.
Aperçus Annuels sur la Qualité de l'Air
Chester, Illinois, United States
Niveaux AQI en 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Dim.Lun.Mar.Mer.Jeu.Ven.Sam.
Jan.
Fév.
Mar.
Avr.
Mai
Juin
Juil.
Août
Sep.
Oct.
Nov.
Déc.
1st Janvier 2025
22AQI
22AQI
2nd Janvier 2025
25AQI
25AQI
3rd Janvier 2025
24AQI
24AQI
4th Janvier 2025
20AQI
20AQI
5th Janvier 2025
20AQI
20AQI
6th Janvier 2025
20AQI
20AQI
7th Janvier 2025
24AQI
24AQI
8th Janvier 2025
42AQI
42AQI
9th Janvier 2025
54AQI
54AQI
10th Janvier 2025
54AQI
54AQI
11th Janvier 2025
35AQI
35AQI
12th Janvier 2025
31AQI
31AQI
13th Janvier 2025
23AQI
23AQI
14th Janvier 2025
26AQI
26AQI
15th Janvier 2025
33AQI
33AQI
16th Janvier 2025
30AQI
30AQI
17th Janvier 2025
27AQI
27AQI
18th Janvier 2025
20AQI
20AQI
19th Janvier 2025
19AQI
19AQI
20th Janvier 2025
20AQI
20AQI
21st Janvier 2025
22AQI
22AQI
22nd Janvier 2025
25AQI
25AQI
23rd Janvier 2025
26AQI
26AQI
24th Janvier 2025
30AQI
30AQI
25th Janvier 2025
28AQI
28AQI
26th Janvier 2025
27AQI
27AQI
27th Janvier 2025
22AQI
22AQI
28th Janvier 2025
23AQI
23AQI
29th Janvier 2025
24AQI
24AQI
30th Janvier 2025
30AQI
30AQI
31st Janvier 2025
21AQI
21AQI
1st Février 2025
31AQI
31AQI
2nd Février 2025
26AQI
26AQI
3rd Février 2025
33AQI
33AQI
4th Février 2025
29AQI
29AQI
5th Février 2025
29AQI
29AQI
6th Février 2025
26AQI
26AQI
7th Février 2025
25AQI
25AQI
8th Février 2025
32AQI
32AQI
9th Février 2025
35AQI
35AQI
10th Février 2025
33AQI
33AQI
11th Février 2025
30AQI
30AQI
12th Février 2025
42AQI
42AQI
13th Février 2025
30AQI
30AQI
14th Février 2025
26AQI
26AQI
15th Février 2025
23AQI
23AQI
16th Février 2025
40AQI
40AQI
17th Février 2025
20AQI
20AQI
18th Février 2025
22AQI
22AQI
19th Février 2025
21AQI
21AQI
20th Février 2025
22AQI
22AQI
21st Février 2025
30AQI
30AQI
22nd Février 2025
37AQI
37AQI
23rd Février 2025
32AQI
32AQI
24th Février 2025
28AQI
28AQI
25th Février 2025
28AQI
28AQI
26th Février 2025
26AQI
26AQI
27th Février 2025
30AQI
30AQI
28th Février 2025
28AQI
28AQI
1st Mars 2025
27AQI
27AQI
2nd Mars 2025
27AQI
27AQI
3rd Mars 2025
32AQI
32AQI
4th Mars 2025
42AQI
42AQI
5th Mars 2025
26AQI
26AQI
6th Mars 2025
27AQI
27AQI
7th Mars 2025
28AQI
28AQI
8th Mars 2025
33AQI
33AQI
9th Mars 2025
40AQI
40AQI
10th Mars 2025
46AQI
46AQI
11th Mars 2025
56AQI
56AQI
12th Mars 2025
55AQI
55AQI
13th Mars 2025
67AQI
67AQI
14th Mars 2025
50AQI
50AQI
15th Mars 2025
117AQI
117AQI
16th Mars 2025
29AQI
29AQI
17th Mars 2025
32AQI
32AQI
18th Mars 2025
25AQI
25AQI
19th Mars 2025
31AQI
31AQI
20th Mars 2025
19AQI
19AQI
21st Mars 2025
27AQI
27AQI
22nd Mars 2025
21AQI
21AQI
23rd Mars 2025
26AQI
26AQI
24th Mars 2025
19AQI
19AQI
25th Mars 2025
20AQI
20AQI
26th Mars 2025
33AQI
33AQI
27th Mars 2025
46AQI
46AQI
28th Mars 2025
45AQI
45AQI
29th Mars 2025
47AQI
47AQI
30th Mars 2025
32AQI
32AQI
31st Mars 2025
20AQI
20AQI
1st Avril 2025
28AQI
28AQI
2nd Avril 2025
31AQI
31AQI
3rd Avril 2025
25AQI
25AQI
4th Avril 2025
22AQI
22AQI
5th Avril 2025
18AQI
18AQI
6th Avril 2025
23AQI
23AQI
7th Avril 2025
26AQI
26AQI
8th Avril 2025
18AQI
18AQI
9th Avril 2025
22AQI
22AQI
10th Avril 2025
40AQI
40AQI
11th Avril 2025
39AQI
39AQI
12th Avril 2025
44AQI
44AQI
13th Avril 2025
43AQI
43AQI
14th Avril 2025
41AQI
41AQI
15th Avril 2025
23AQI
23AQI
16th Avril 2025
28AQI
28AQI
17th Avril 2025
45AQI
45AQI
18th Avril 2025
60AQI
60AQI
19th Avril 2025
40AQI
40AQI
20th Avril 2025
49AQI
49AQI
21st Avril 2025
21AQI
21AQI
22nd Avril 2025
26AQI
26AQI
23rd Avril 2025
32AQI
32AQI
24th Avril 2025
41AQI
41AQI
25th Avril 2025
40AQI
40AQI
26th Avril 2025
34AQI
34AQI
27th Avril 2025
24AQI
24AQI
28th Avril 2025
37AQI
37AQI
29th Avril 2025
41AQI
41AQI
30th Avril 2025
38AQI
38AQI
1st Mai 2025
27AQI
27AQI
2nd Mai 2025
27AQI
27AQI
3rd Mai 2025
30AQI
30AQI
4th Mai 2025
22AQI
22AQI
5th Mai 2025
19AQI
19AQI
6th Mai 2025
26AQI
26AQI
7th Mai 2025
23AQI
23AQI
8th Mai 2025
27AQI
27AQI
9th Mai 2025
25AQI
25AQI
10th Mai 2025
26AQI
26AQI
11th Mai 2025
32AQI
32AQI
12th Mai 2025
25AQI
25AQI
13th Mai 2025
22AQI
22AQI
14th Mai 2025
41AQI
41AQI
15th Mai 2025
54AQI
54AQI
16th Mai 2025
54AQI
54AQI
17th Mai 2025
27AQI
27AQI
18th Mai 2025
22AQI
22AQI
19th Mai 2025
29AQI
29AQI
20th Mai 2025
29AQI
29AQI
21st Mai 2025
16AQI
16AQI
22nd Mai 2025
14AQI
14AQI
23rd Mai 2025
17AQI
17AQI
24th Mai 2025
29AQI
29AQI
25th Mai 2025
34AQI
34AQI
26th Mai 2025
22AQI
22AQI
27th Mai 2025
21AQI
21AQI
28th Mai 2025
28AQI
28AQI
29th Mai 2025
37AQI
37AQI
30th Mai 2025
29AQI
29AQI
31st Mai 2025
41AQI
41AQI
1st Juin 2025
39AQI
39AQI
2nd Juin 2025
44AQI
44AQI
3rd Juin 2025
57AQI
57AQI
4th Juin 2025
61AQI
61AQI
5th Juin 2025
52AQI
52AQI
6th Juin 2025
47AQI
47AQI
7th Juin 2025
53AQI
53AQI
8th Juin 2025
53AQI
53AQI
9th Juin 2025
57AQI
57AQI
10th Juin 2025
61AQI
61AQI
11th Juin 2025
68AQI
68AQI
12th Juin 2025
79AQI
79AQI
13th Juin 2025
44AQI
44AQI
14th Juin 2025
38AQI
38AQI
15th Juin 2025
41AQI
41AQI
16th Juin 2025
28AQI
28AQI
17th Juin 2025
36AQI
36AQI
18th Juin 2025
34AQI
34AQI
19th Juin 2025
26AQI
26AQI
20th Juin 2025
38AQI
38AQI
21st Juin 2025
50AQI
50AQI
22nd Juin 2025
53AQI
53AQI
23rd Juin 2025
57AQI
57AQI
24th Juin 2025
55AQI
55AQI
25th Juin 2025
54AQI
54AQI
26th Juin 2025
52AQI
52AQI
27th Juin 2025
42AQI
42AQI
28th Juin 2025
28AQI
28AQI
29th Juin 2025
27AQI
27AQI
30th Juin 2025
29AQI
29AQI
1st Juillet 2025
30AQI
30AQI
2nd Juillet 2025
38AQI
38AQI
3rd Juillet 2025
53AQI
53AQI
4th Juillet 2025
60AQI
60AQI
5th Juillet 2025
70AQI
70AQI
6th Juillet 2025
59AQI
59AQI
7th Juillet 2025
40AQI
40AQI
8th Juillet 2025
39AQI
39AQI
9th Juillet 2025
34AQI
34AQI
10th Juillet 2025
42AQI
42AQI
11th Juillet 2025
43AQI
43AQI
12th Juillet 2025
40AQI
40AQI
13th Juillet 2025
33AQI
33AQI
14th Juillet 2025
33AQI
33AQI
15th Juillet 2025
34AQI
34AQI
16th Juillet 2025
34AQI
34AQI
17th Juillet 2025
37AQI
37AQI
18th Juillet 2025
31AQI
31AQI
19th Juillet 2025
43AQI
43AQI
20th Juillet 2025
52AQI
52AQI
21st Juillet 2025
34AQI
34AQI
22nd Juillet 2025
41AQI
41AQI
23rd Juillet 2025
50AQI
50AQI
24th Juillet 2025
54AQI
54AQI
25th Juillet 2025
54AQI
54AQI
26th Juillet 2025
44AQI
44AQI
27th Juillet 2025
30AQI
30AQI
28th Juillet 2025
36AQI
36AQI
29th Juillet 2025
45AQI
45AQI
30th Juillet 2025
46AQI
46AQI
31st Juillet 2025
38AQI
38AQI
1st Août 2025
89AQI
89AQI
2nd Août 2025
78AQI
78AQI
3rd Août 2025
51AQI
51AQI
4th Août 2025
38AQI
38AQI
5th Août 2025
40AQI
40AQI
6th Août 2025
45AQI
45AQI
7th Août 2025
50AQI
50AQI
8th Août 2025
52AQI
52AQI
27AQI
29AQI
37AQI
33AQI
28AQI
47AQI
42AQI
55AQI
Nombre de jours
Jan.Fév.Mar.Avr.MaiJuinJuil.AoûtSep.Oct.Nov.Déc.Jours totaux
202536AQI
29
2
28
27
3
1
29
1
29
2
16
14
24
7
4
4
186
33
1
Le plus élevé AQI enregistré en
Août55AQI
Le plus bas AQI enregistré en
Janvier27AQI
202431AQI
30
1
26
3
31
30
31
28
1
29
2
29
2
30
27
4
30
31
352
13
Le plus élevé AQI enregistré en
Octobre37AQI
Le plus bas AQI enregistré en
Janvier24AQI
202338AQI
27
4
28
30
1
27
3
25
6
8
22
28
3
23
8
26
4
27
4
29
31
309
55
Le plus élevé AQI enregistré en
Juin59AQI
Le plus bas AQI enregistré en
Décembre25AQI
202236AQI
27
4
21
30
1
17
27
4
25
5
19
4
2
28
1
27
4
26
4
23
8
272
35
Le plus élevé AQI enregistré en
Juin44AQI
Le plus bas AQI enregistré en
Septembre32AQI
202138AQI
28
2
17
5
24
4
27
3
29
2
23
5
16
15
24
7
21
4
29
2
17
3
27
4
282
56
Le plus élevé AQI enregistré en
Juillet50AQI
Le plus bas AQI enregistré en
Octobre30AQI
202040AQI
10
3
17
3
18
24
4
2
27
4
30
1
27
2
27
2
1
25
3
21
8
226
30
3
Le plus élevé AQI enregistré en
Juin48AQI
Le plus bas AQI enregistré en
Mai32AQI
Années les plus & moins polluées des 6 dernières années
Année la plus polluée enregistrée
2020(Moyenne)
40AQIAnnée la moins polluée enregistrée
2024(Moyenne)
31AQILa qualité de l'air annuelle de Chester pour l'année 2025 AQI (36) montre un changement moyen de pourcentage de -1.5% (amélioré AQI) par rapport aux années précédentes : 2020 (40), 2021 (38), 2022 (36), 2023 (38), 2024 (31).
