Chichijima, Iwaki, Fukushima, Japan 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
Chichijima, Iwaki, Fukushima, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
7th Aug 2021
47AQILowest AQI recorded on
6th Aug 2023
8AQISame Day Analysis (11th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 29 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 12th Aug - 13th Aug 2025
Chichijima, Iwaki, Fukushima, Japan
AQI
Day
Night
.
4 AM12th Aug 2025
6 PM
3 AM13th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
4AM12th Aug
39AQI
Avg. Lowest Time
5PM12th Aug
22AQI
In the last 24 hours,
Chichijima's AQI reached its highest point of 39 at 4 AM during the Night, while the lowest point, undefined, was recorded at 3 AM during the Night between 12th Aug and 13th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chichijima, Iwaki, Fukushima, Japan
JulAug
14th - 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 - 11th11th - 12th12th - 13th13th
Day
Night
14th Jul 2025514 AMAQI
14th Jul 2025485 AMAQI
14th Jul 2025486 AMAQI
14th Jul 2025497 AMAQI
14th Jul 2025508 AMAQI
14th Jul 2025369 AMAQI
14th Jul 20252810 AMAQI
14th Jul 20253011 AMAQI
14th Jul 20252412 PMAQI
14th Jul 2025331 PMAQI
14th Jul 2025342 PMAQI
14th Jul 2025413 PMAQI
14th Jul 2025484 PMAQI
14th Jul 2025475 PMAQI
14th Jul 2025486 PMAQI
14th Jul 2025397 PMAQI
14th Jul 2025428 PMAQI
14th Jul 2025449 PMAQI
14th Jul 20254410 PMAQI
14th Jul 20254511 PMAQI
15th Jul 20254512 AMAQI
15th Jul 2025421 AMAQI
15th Jul 2025462 AMAQI
15th Jul 2025493 AMAQI
23°C22/25°C
15th Jul 2025504 AMAQI
15th Jul 2025485 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025497 AMAQI
15th Jul 2025488 AMAQI
15th Jul 2025499 AMAQI
15th Jul 20255310 AMAQI
15th Jul 20254711 AMAQI
15th Jul 20254212 PMAQI
15th Jul 2025441 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025373 PMAQI
15th Jul 2025424 PMAQI
15th Jul 2025435 PMAQI
15th Jul 2025446 PMAQI
15th Jul 2025497 PMAQI
15th Jul 2025568 PMAQI
15th Jul 2025429 PMAQI
15th Jul 20254110 PMAQI
15th Jul 20254111 PMAQI
16th Jul 20254212 AMAQI
16th Jul 2025431 AMAQI
16th Jul 2025472 AMAQI
16th Jul 2025473 AMAQI
24°C24/25°C
16th Jul 2025444 AMAQI
16th Jul 2025455 AMAQI
16th Jul 2025446 AMAQI
16th Jul 2025447 AMAQI
16th Jul 2025448 AMAQI
16th Jul 2025549 AMAQI
16th Jul 20255610 AMAQI
16th Jul 20255411 AMAQI
16th Jul 20255412 PMAQI
16th Jul 2025461 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025443 PMAQI
16th Jul 2025444 PMAQI
16th Jul 2025465 PMAQI
16th Jul 2025486 PMAQI
16th Jul 2025477 PMAQI
16th Jul 2025488 PMAQI
16th Jul 2025459 PMAQI
16th Jul 20254610 PMAQI
16th Jul 20254211 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025461 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025483 AMAQI
24°C23/27°C
17th Jul 2025474 AMAQI
17th Jul 2025475 AMAQI
17th Jul 2025466 AMAQI
17th Jul 2025467 AMAQI
17th Jul 2025468 AMAQI
17th Jul 2025439 AMAQI
17th Jul 20253910 AMAQI
17th Jul 20254511 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025481 PMAQI
17th Jul 2025512 PMAQI
17th Jul 2025523 PMAQI
17th Jul 2025504 PMAQI
17th Jul 2025435 PMAQI
17th Jul 2025476 PMAQI
17th Jul 2025447 PMAQI
17th Jul 2025418 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254512 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025482 AMAQI
18th Jul 2025483 AMAQI
25°C22/29°C
18th Jul 2025464 AMAQI
18th Jul 2025465 AMAQI
18th Jul 2025446 AMAQI
18th Jul 2025447 AMAQI
18th Jul 2025458 AMAQI
18th Jul 2025449 AMAQI
18th Jul 20253910 AMAQI
18th Jul 20254211 AMAQI
18th Jul 20253812 PMAQI
18th Jul 2025381 PMAQI
18th Jul 2025392 PMAQI
18th Jul 2025403 PMAQI
18th Jul 2025414 PMAQI
18th Jul 2025395 PMAQI
18th Jul 2025396 PMAQI
18th Jul 2025387 PMAQI
18th Jul 2025448 PMAQI
18th Jul 2025409 PMAQI
18th Jul 20254310 PMAQI
18th Jul 20254311 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025482 AMAQI
19th Jul 2025463 AMAQI
25°C22/29°C
19th Jul 2025474 AMAQI
19th Jul 2025465 AMAQI
19th Jul 2025466 AMAQI
19th Jul 2025467 AMAQI
19th Jul 2025468 AMAQI
19th Jul 2025499 AMAQI
19th Jul 20254710 AMAQI
19th Jul 20253811 AMAQI
19th Jul 20253712 PMAQI
19th Jul 2025341 PMAQI
19th Jul 2025362 PMAQI
19th Jul 2025373 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025386 PMAQI
19th Jul 2025407 PMAQI
19th Jul 2025368 PMAQI
19th Jul 2025379 PMAQI
19th Jul 20253610 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025502 AMAQI
20th Jul 2025473 AMAQI
24°C21/28°C
20th Jul 2025484 AMAQI
20th Jul 2025455 AMAQI
20th Jul 2025466 AMAQI
20th Jul 2025467 AMAQI
20th Jul 2025468 AMAQI
20th Jul 2025509 AMAQI
20th Jul 20254810 AMAQI
20th Jul 20254811 AMAQI
20th Jul 20254112 PMAQI
20th Jul 2025481 PMAQI
20th Jul 2025532 PMAQI
20th Jul 2025483 PMAQI
20th Jul 2025474 PMAQI
20th Jul 2025515 PMAQI
20th Jul 2025516 PMAQI
20th Jul 2025507 PMAQI
20th Jul 2025468 PMAQI
20th Jul 2025439 PMAQI
20th Jul 20254310 PMAQI
20th Jul 20254411 PMAQI
21st Jul 20254312 AMAQI
21st Jul 2025421 AMAQI
21st Jul 2025482 AMAQI
21st Jul 2025443 AMAQI
25°C22/29°C
21st Jul 2025454 AMAQI
21st Jul 2025485 AMAQI
21st Jul 2025486 AMAQI
21st Jul 2025467 AMAQI
21st Jul 2025458 AMAQI
21st Jul 2025449 AMAQI
21st Jul 20253910 AMAQI
21st Jul 20254311 AMAQI
21st Jul 20254612 PMAQI
21st Jul 2025431 PMAQI
21st Jul 2025412 PMAQI
21st Jul 2025453 PMAQI
21st Jul 2025434 PMAQI
21st Jul 2025415 PMAQI
21st Jul 2025376 PMAQI
21st Jul 2025407 PMAQI
21st Jul 2025418 PMAQI
21st Jul 2025449 PMAQI
21st Jul 20254410 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20254012 AMAQI
22nd Jul 2025411 AMAQI
22nd Jul 2025432 AMAQI
22nd Jul 2025443 AMAQI
26°C22/30°C
22nd Jul 2025444 AMAQI
22nd Jul 2025445 AMAQI
22nd Jul 2025456 AMAQI
22nd Jul 2025437 AMAQI
22nd Jul 2025438 AMAQI
22nd Jul 2025509 AMAQI
22nd Jul 20255110 AMAQI
22nd Jul 20255811 AMAQI
22nd Jul 20255312 PMAQI
22nd Jul 2025491 PMAQI
22nd Jul 2025422 PMAQI
22nd Jul 2025403 PMAQI
22nd Jul 2025414 PMAQI
22nd Jul 2025415 PMAQI
22nd Jul 2025456 PMAQI
22nd Jul 2025497 PMAQI
22nd Jul 2025508 PMAQI
22nd Jul 2025479 PMAQI
22nd Jul 20254810 PMAQI
22nd Jul 20254711 PMAQI
23rd Jul 20254412 AMAQI
23rd Jul 2025421 AMAQI
23rd Jul 2025452 AMAQI
23rd Jul 2025433 AMAQI
26°C23/31°C
23rd Jul 2025444 AMAQI
23rd Jul 2025485 AMAQI
23rd Jul 2025496 AMAQI
23rd Jul 2025487 AMAQI
23rd Jul 2025478 AMAQI
23rd Jul 2025549 AMAQI
23rd Jul 20255810 AMAQI
23rd Jul 20255611 AMAQI
23rd Jul 20255012 PMAQI
23rd Jul 2025501 PMAQI
23rd Jul 2025522 PMAQI
23rd Jul 2025553 PMAQI
23rd Jul 2025524 PMAQI
23rd Jul 2025445 PMAQI
23rd Jul 2025466 PMAQI
23rd Jul 2025467 PMAQI
23rd Jul 2025548 PMAQI
23rd Jul 2025519 PMAQI
23rd Jul 20254910 PMAQI
23rd Jul 20255111 PMAQI
24th Jul 20254812 AMAQI
24th Jul 2025481 AMAQI
24th Jul 2025442 AMAQI
24th Jul 2025463 AMAQI
26°C23/30°C
24th Jul 2025474 AMAQI
24th Jul 2025515 AMAQI
24th Jul 2025486 AMAQI
24th Jul 2025507 AMAQI
24th Jul 2025508 AMAQI
24th Jul 2025549 AMAQI
24th Jul 20255710 AMAQI
24th Jul 20255611 AMAQI
24th Jul 20255312 PMAQI
24th Jul 2025521 PMAQI
24th Jul 2025482 PMAQI
24th Jul 2025473 PMAQI
24th Jul 2025484 PMAQI
24th Jul 2025535 PMAQI
24th Jul 2025536 PMAQI
24th Jul 2025537 PMAQI
24th Jul 2025538 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20255210 PMAQI
24th Jul 20255011 PMAQI
25th Jul 20254912 AMAQI
25th Jul 2025511 AMAQI
25th Jul 2025502 AMAQI
25th Jul 2025503 AMAQI
26°C22/30°C
25th Jul 2025504 AMAQI
25th Jul 2025505 AMAQI
25th Jul 2025506 AMAQI
25th Jul 2025527 AMAQI
25th Jul 2025528 AMAQI
25th Jul 2025569 AMAQI
25th Jul 20256310 AMAQI
25th Jul 20256411 AMAQI
25th Jul 20256412 PMAQI
25th Jul 2025591 PMAQI
25th Jul 2025592 PMAQI
25th Jul 2025593 PMAQI
25th Jul 2025564 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025546 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025518 PMAQI
25th Jul 2025509 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255211 PMAQI
26th Jul 20255212 AMAQI
26th Jul 2025511 AMAQI
26th Jul 2025512 AMAQI
26th Jul 2025513 AMAQI
26°C23/30°C
26th Jul 2025524 AMAQI
26th Jul 2025505 AMAQI
26th Jul 2025506 AMAQI
26th Jul 2025517 AMAQI
26th Jul 2025508 AMAQI
26th Jul 2025569 AMAQI
26th Jul 20255910 AMAQI
26th Jul 20255911 AMAQI
26th Jul 20256012 PMAQI
26th Jul 2025581 PMAQI
26th Jul 2025552 PMAQI
26th Jul 2025563 PMAQI
26th Jul 2025574 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025576 PMAQI
26th Jul 2025537 PMAQI
26th Jul 2025528 PMAQI
26th Jul 2025519 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20254912 AMAQI
27th Jul 2025501 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025523 AMAQI
26°C22/30°C
27th Jul 2025524 AMAQI
27th Jul 2025525 AMAQI
27th Jul 2025516 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025528 AMAQI
27th Jul 2025529 AMAQI
27th Jul 20255510 AMAQI
27th Jul 20254911 AMAQI
27th Jul 20255012 PMAQI
27th Jul 2025561 PMAQI
27th Jul 2025562 PMAQI
27th Jul 2025513 PMAQI
27th Jul 2025534 PMAQI
27th Jul 2025565 PMAQI
27th Jul 2025516 PMAQI
27th Jul 2025507 PMAQI
27th Jul 2025508 PMAQI
27th Jul 2025529 PMAQI
27th Jul 20255110 PMAQI
27th Jul 20255111 PMAQI
28th Jul 20255212 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025512 AMAQI
28th Jul 2025523 AMAQI
26°C23/31°C
28th Jul 2025524 AMAQI
28th Jul 2025525 AMAQI
28th Jul 2025526 AMAQI
28th Jul 2025527 AMAQI
28th Jul 2025528 AMAQI
28th Jul 2025409 AMAQI
28th Jul 20254610 AMAQI
28th Jul 20254911 AMAQI
28th Jul 20254612 PMAQI
28th Jul 2025461 PMAQI
28th Jul 2025452 PMAQI
28th Jul 2025363 PMAQI
28th Jul 2025384 PMAQI
28th Jul 2025425 PMAQI
28th Jul 2025446 PMAQI
28th Jul 2025407 PMAQI
28th Jul 2025438 PMAQI
28th Jul 2025509 PMAQI
28th Jul 20255210 PMAQI
28th Jul 20255111 PMAQI
29th Jul 20255412 AMAQI
29th Jul 2025521 AMAQI
29th Jul 2025512 AMAQI
29th Jul 2025523 AMAQI
26°C23/30°C
29th Jul 2025534 AMAQI
29th Jul 2025525 AMAQI
29th Jul 2025526 AMAQI
29th Jul 2025527 AMAQI
29th Jul 2025528 AMAQI
29th Jul 2025499 AMAQI
29th Jul 20255110 AMAQI
29th Jul 20255111 AMAQI
29th Jul 20255112 PMAQI
29th Jul 2025511 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025454 PMAQI
29th Jul 2025395 PMAQI
29th Jul 2025326 PMAQI
29th Jul 2025307 PMAQI
29th Jul 2025398 PMAQI
29th Jul 2025459 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20254411 PMAQI
30th Jul 20255012 AMAQI
30th Jul 2025491 AMAQI
30th Jul 2025532 AMAQI
30th Jul 2025523 AMAQI
25°C22/30°C
30th Jul 2025534 AMAQI
30th Jul 2025535 AMAQI
30th Jul 2025536 AMAQI
30th Jul 2025547 AMAQI
30th Jul 2025548 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20254810 AMAQI
30th Jul 20255311 AMAQI
30th Jul 20255612 PMAQI
30th Jul 2025571 PMAQI
30th Jul 2025692 PMAQI
30th Jul 2025613 PMAQI
30th Jul 2025664 PMAQI
30th Jul 2025545 PMAQI
30th Jul 2025536 PMAQI
30th Jul 2025557 PMAQI
30th Jul 2025498 PMAQI
30th Jul 2025489 PMAQI
30th Jul 20254410 PMAQI
30th Jul 20254111 PMAQI
31st Jul 20254212 AMAQI
31st Jul 2025481 AMAQI
31st Jul 2025522 AMAQI
31st Jul 2025523 AMAQI
24°C21/28°C
31st Jul 2025524 AMAQI
31st Jul 2025525 AMAQI
31st Jul 2025526 AMAQI
31st Jul 2025527 AMAQI
31st Jul 2025528 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20255210 AMAQI
31st Jul 20253311 AMAQI
31st Jul 20252812 PMAQI
31st Jul 2025311 PMAQI
31st Jul 2025272 PMAQI
31st Jul 2025253 PMAQI
31st Jul 2025324 PMAQI
31st Jul 2025325 PMAQI
31st Jul 2025286 PMAQI
31st Jul 2025287 PMAQI
31st Jul 2025368 PMAQI
31st Jul 2025409 PMAQI
31st Jul 20254610 PMAQI
31st Jul 20255411 PMAQI
1st Aug 20253612 AMAQI
1st Aug 2025501 AMAQI
1st Aug 2025482 AMAQI
1st Aug 2025463 AMAQI
24°C20/27°C
1st Aug 2025464 AMAQI
1st Aug 2025445 AMAQI
1st Aug 2025436 AMAQI
1st Aug 2025497 AMAQI
1st Aug 2025448 AMAQI
1st Aug 2025549 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255311 AMAQI
1st Aug 20255712 PMAQI
1st Aug 2025501 PMAQI
1st Aug 2025452 PMAQI
1st Aug 2025393 PMAQI
1st Aug 2025434 PMAQI
1st Aug 2025465 PMAQI
1st Aug 2025466 PMAQI
1st Aug 2025337 PMAQI
1st Aug 2025358 PMAQI
1st Aug 2025359 PMAQI
1st Aug 20253610 PMAQI
1st Aug 20253211 PMAQI
2nd Aug 20253112 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025412 AMAQI
2nd Aug 2025423 AMAQI
24°C21/26°C
2nd Aug 2025414 AMAQI
2nd Aug 2025425 AMAQI
2nd Aug 2025436 AMAQI
2nd Aug 2025427 AMAQI
2nd Aug 2025448 AMAQI
2nd Aug 2025329 AMAQI
2nd Aug 20253510 AMAQI
2nd Aug 20255011 AMAQI
2nd Aug 20253812 PMAQI
2nd Aug 2025351 PMAQI
2nd Aug 2025532 PMAQI
2nd Aug 2025503 PMAQI
2nd Aug 2025424 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025436 PMAQI
2nd Aug 2025447 PMAQI
2nd Aug 2025328 PMAQI
2nd Aug 2025339 PMAQI
2nd Aug 20253210 PMAQI
2nd Aug 20253211 PMAQI
3rd Aug 20253112 AMAQI
3rd Aug 2025351 AMAQI
3rd Aug 2025392 AMAQI
3rd Aug 2025393 AMAQI
26°C23/31°C
3rd Aug 2025384 AMAQI
3rd Aug 2025375 AMAQI
3rd Aug 2025356 AMAQI
3rd Aug 2025367 AMAQI
3rd Aug 2025358 AMAQI
3rd Aug 2025449 AMAQI
3rd Aug 20253010 AMAQI
3rd Aug 20254611 AMAQI
3rd Aug 20255212 PMAQI
3rd Aug 2025471 PMAQI
3rd Aug 2025522 PMAQI
3rd Aug 2025393 PMAQI
3rd Aug 2025404 PMAQI
3rd Aug 2025385 PMAQI
3rd Aug 2025386 PMAQI
3rd Aug 2025347 PMAQI
3rd Aug 2025318 PMAQI
3rd Aug 2025339 PMAQI
3rd Aug 20253010 PMAQI
3rd Aug 20253211 PMAQI
4th Aug 20253112 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025352 AMAQI
4th Aug 2025373 AMAQI
26°C23/30°C
4th Aug 2025384 AMAQI
4th Aug 2025385 AMAQI
4th Aug 2025386 AMAQI
4th Aug 2025367 AMAQI
4th Aug 2025398 AMAQI
4th Aug 2025449 AMAQI
4th Aug 20255510 AMAQI
4th Aug 20256411 AMAQI
4th Aug 20255712 PMAQI
4th Aug 2025601 PMAQI
4th Aug 2025552 PMAQI
4th Aug 2025573 PMAQI
4th Aug 2025644 PMAQI
4th Aug 2025625 PMAQI
4th Aug 2025626 PMAQI
4th Aug 2025517 PMAQI
4th Aug 2025598 PMAQI
4th Aug 2025529 PMAQI
4th Aug 20254210 PMAQI
4th Aug 20253911 PMAQI
5th Aug 20254312 AMAQI
5th Aug 2025391 AMAQI
5th Aug 2025402 AMAQI
5th Aug 2025383 AMAQI
26°C23/31°C
5th Aug 2025404 AMAQI
5th Aug 2025405 AMAQI
5th Aug 2025376 AMAQI
5th Aug 2025387 AMAQI
5th Aug 2025408 AMAQI
5th Aug 2025459 AMAQI
5th Aug 20254610 AMAQI
5th Aug 20254811 AMAQI
5th Aug 20254612 PMAQI
5th Aug 2025481 PMAQI
5th Aug 2025482 PMAQI
5th Aug 2025443 PMAQI
5th Aug 2025514 PMAQI
5th Aug 2025465 PMAQI
5th Aug 2025456 PMAQI
5th Aug 2025387 PMAQI
5th Aug 2025468 PMAQI
5th Aug 2025389 PMAQI
5th Aug 20253310 PMAQI
5th Aug 20253511 PMAQI
6th Aug 20253512 AMAQI
6th Aug 2025431 AMAQI
6th Aug 2025442 AMAQI
6th Aug 2025443 AMAQI
28°C23/33°C
6th Aug 2025434 AMAQI
6th Aug 2025405 AMAQI
6th Aug 2025416 AMAQI
6th Aug 2025407 AMAQI
6th Aug 2025408 AMAQI
6th Aug 2025419 AMAQI
6th Aug 20254010 AMAQI
6th Aug 20253811 AMAQI
6th Aug 20255012 PMAQI
6th Aug 2025371 PMAQI
6th Aug 2025422 PMAQI
6th Aug 2025423 PMAQI
6th Aug 2025424 PMAQI
6th Aug 2025435 PMAQI
6th Aug 2025396 PMAQI
6th Aug 2025407 PMAQI
6th Aug 2025408 PMAQI
6th Aug 2025419 PMAQI
6th Aug 20254410 PMAQI
6th Aug 20254211 PMAQI
7th Aug 20253912 AMAQI
7th Aug 2025391 AMAQI
7th Aug 2025422 AMAQI
7th Aug 2025413 AMAQI
26°C23/31°C
7th Aug 2025384 AMAQI
7th Aug 2025385 AMAQI
7th Aug 2025396 AMAQI
7th Aug 2025397 AMAQI
7th Aug 2025388 AMAQI
7th Aug 2025349 AMAQI
7th Aug 20253810 AMAQI
7th Aug 20254211 AMAQI
7th Aug 20252112 PMAQI
7th Aug 2025321 PMAQI
7th Aug 2025342 PMAQI
7th Aug 2025223 PMAQI
7th Aug 2025224 PMAQI
7th Aug 2025265 PMAQI
7th Aug 2025306 PMAQI
7th Aug 2025337 PMAQI
7th Aug 2025308 PMAQI
7th Aug 2025379 PMAQI
7th Aug 20253510 PMAQI
7th Aug 20253411 PMAQI
8th Aug 20253412 AMAQI
8th Aug 2025371 AMAQI
8th Aug 2025402 AMAQI
8th Aug 2025383 AMAQI
26°C22/30°C
8th Aug 2025384 AMAQI
8th Aug 2025385 AMAQI
8th Aug 2025386 AMAQI
8th Aug 2025387 AMAQI
8th Aug 2025388 AMAQI
8th Aug 2025259 AMAQI
8th Aug 20251910 AMAQI
8th Aug 20252011 AMAQI
8th Aug 20252012 PMAQI
8th Aug 2025241 PMAQI
8th Aug 2025262 PMAQI
8th Aug 2025283 PMAQI
8th Aug 2025304 PMAQI
8th Aug 2025305 PMAQI
8th Aug 2025306 PMAQI
8th Aug 2025267 PMAQI
8th Aug 2025268 PMAQI
8th Aug 2025329 PMAQI
8th Aug 20253110 PMAQI
8th Aug 20253011 PMAQI
9th Aug 20253112 AMAQI
9th Aug 2025321 AMAQI
9th Aug 2025362 AMAQI
9th Aug 2025363 AMAQI
25°C22/31°C
9th Aug 2025374 AMAQI
9th Aug 2025365 AMAQI
9th Aug 2025346 AMAQI
9th Aug 2025367 AMAQI
9th Aug 2025348 AMAQI
9th Aug 2025239 AMAQI
9th Aug 20252110 AMAQI
9th Aug 20252511 AMAQI
9th Aug 20252512 PMAQI
9th Aug 2025241 PMAQI
9th Aug 2025282 PMAQI
9th Aug 2025263 PMAQI
9th Aug 2025244 PMAQI
9th Aug 2025275 PMAQI
9th Aug 2025266 PMAQI
9th Aug 2025237 PMAQI
9th Aug 2025258 PMAQI
9th Aug 2025319 PMAQI
9th Aug 20253310 PMAQI
9th Aug 20253311 PMAQI
10th Aug 20252912 AMAQI
10th Aug 2025301 AMAQI
10th Aug 2025362 AMAQI
10th Aug 2025343 AMAQI
24°C21/29°C
10th Aug 2025344 AMAQI
10th Aug 2025305 AMAQI
10th Aug 2025306 AMAQI
10th Aug 2025317 AMAQI
10th Aug 2025298 AMAQI
10th Aug 2025289 AMAQI
10th Aug 20252610 AMAQI
10th Aug 20252511 AMAQI
10th Aug 20252612 PMAQI
10th Aug 2025311 PMAQI
10th Aug 2025372 PMAQI
10th Aug 2025343 PMAQI
10th Aug 2025334 PMAQI
10th Aug 2025305 PMAQI
10th Aug 2025256 PMAQI
10th Aug 2025267 PMAQI
10th Aug 2025278 PMAQI
10th Aug 2025299 PMAQI
10th Aug 20253010 PMAQI
10th Aug 20253011 PMAQI
11th Aug 20252712 AMAQI
11th Aug 2025271 AMAQI
11th Aug 2025302 AMAQI
11th Aug 2025313 AMAQI
23°C22/23°C
11th Aug 2025304 AMAQI
11th Aug 2025295 AMAQI
11th Aug 2025296 AMAQI
11th Aug 2025297 AMAQI
11th Aug 2025298 AMAQI
11th Aug 2025259 AMAQI
11th Aug 20252910 AMAQI
11th Aug 20253511 AMAQI
11th Aug 20253412 PMAQI
11th Aug 2025251 PMAQI
11th Aug 2025262 PMAQI
11th Aug 2025273 PMAQI
11th Aug 2025274 PMAQI
11th Aug 2025265 PMAQI
11th Aug 2025266 PMAQI
11th Aug 2025287 PMAQI
11th Aug 2025288 PMAQI
11th Aug 2025289 PMAQI
11th Aug 20252810 PMAQI
11th Aug 20252611 PMAQI
12th Aug 20252412 AMAQI
12th Aug 2025281 AMAQI
12th Aug 2025312 AMAQI
12th Aug 2025323 AMAQI
25°C23/27°C
12th Aug 2025394 AMAQI
12th Aug 2025285 AMAQI
12th Aug 2025276 AMAQI
12th Aug 2025277 AMAQI
12th Aug 2025278 AMAQI
12th Aug 2025279 AMAQI
12th Aug 20252810 AMAQI
12th Aug 20253211 AMAQI
12th Aug 20252412 PMAQI
12th Aug 2025311 PMAQI
12th Aug 2025312 PMAQI
12th Aug 2025303 PMAQI
12th Aug 2025264 PMAQI
12th Aug 2025225 PMAQI
12th Aug 2025236 PMAQI
12th Aug 2025287 PMAQI
12th Aug 2025288 PMAQI
12th Aug 2025339 PMAQI
12th Aug 20252710 PMAQI
12th Aug 20252511 PMAQI
13th Aug 20252612 AMAQI
13th Aug 2025281 AMAQI
--°C/°C
4 AM
11 AM
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 6 PM
43AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
4 AM - 6 PM
43AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 6 PM (Avg. 43), while the lowest AQI was between 4 AM to 6 PM (Avg. 43).
Night time
Avg. Highest Time
2 AM - 3 AM
45AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
12 AM - 1 AM
41AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 3 AM (Avg. 45), while the lowest AQI was between 12 AM to 1 AM (Avg. 41).
2025 Days Vs Air Quality
Chichijima, Iwaki, Fukushima, Japan
2025
91%
202
9%
21
Total number of days with different AQI categories in last 224 days in 2025 (141 days remaining)
Good
202 DaysModerate
21 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 224 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
Chichijima, Iwaki, Fukushima, Japan
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
31AQI
31AQI
2nd January 2025
31AQI
31AQI
3rd January 2025
28AQI
28AQI
4th January 2025
26AQI
26AQI
5th January 2025
29AQI
29AQI
6th January 2025
34AQI
34AQI
7th January 2025
29AQI
29AQI
8th January 2025
26AQI
26AQI
9th January 2025
27AQI
27AQI
10th January 2025
25AQI
25AQI
11th January 2025
25AQI
25AQI
12th January 2025
26AQI
26AQI
13th January 2025
29AQI
29AQI
14th January 2025
37AQI
37AQI
15th January 2025
28AQI
28AQI
16th January 2025
28AQI
28AQI
17th January 2025
26AQI
26AQI
18th January 2025
27AQI
27AQI
19th January 2025
39AQI
39AQI
20th January 2025
37AQI
37AQI
21st January 2025
43AQI
43AQI
22nd January 2025
37AQI
37AQI
23rd January 2025
45AQI
45AQI
24th January 2025
36AQI
36AQI
25th January 2025
33AQI
33AQI
26th January 2025
31AQI
31AQI
27th January 2025
26AQI
26AQI
28th January 2025
30AQI
30AQI
29th January 2025
31AQI
31AQI
30th January 2025
40AQI
40AQI
31st January 2025
30AQI
30AQI
1st February 2025
28AQI
28AQI
2nd February 2025
29AQI
29AQI
3rd February 2025
27AQI
27AQI
4th February 2025
29AQI
29AQI
5th February 2025
30AQI
30AQI
6th February 2025
28AQI
28AQI
7th February 2025
29AQI
29AQI
8th February 2025
28AQI
28AQI
9th February 2025
27AQI
27AQI
10th February 2025
28AQI
28AQI
11th February 2025
29AQI
29AQI
12th February 2025
33AQI
33AQI
13th February 2025
39AQI
39AQI
14th February 2025
31AQI
31AQI
15th February 2025
32AQI
32AQI
16th February 2025
38AQI
38AQI
17th February 2025
41AQI
41AQI
18th February 2025
32AQI
32AQI
19th February 2025
30AQI
30AQI
20th February 2025
29AQI
29AQI
21st February 2025
30AQI
30AQI
22nd February 2025
30AQI
30AQI
23rd February 2025
32AQI
32AQI
24th February 2025
32AQI
32AQI
25th February 2025
36AQI
36AQI
26th February 2025
52AQI
52AQI
27th February 2025
47AQI
47AQI
28th February 2025
53AQI
53AQI
1st March 2025
50AQI
50AQI
2nd March 2025
57AQI
57AQI
3rd March 2025
41AQI
41AQI
4th March 2025
42AQI
42AQI
5th March 2025
36AQI
36AQI
6th March 2025
36AQI
36AQI
7th March 2025
32AQI
32AQI
8th March 2025
32AQI
32AQI
9th March 2025
34AQI
34AQI
10th March 2025
38AQI
38AQI
11th March 2025
39AQI
39AQI
12th March 2025
47AQI
47AQI
13th March 2025
50AQI
50AQI
14th March 2025
44AQI
44AQI
15th March 2025
38AQI
38AQI
16th March 2025
30AQI
30AQI
17th March 2025
23AQI
23AQI
18th March 2025
27AQI
27AQI
19th March 2025
24AQI
24AQI
20th March 2025
28AQI
28AQI
21st March 2025
45AQI
45AQI
22nd March 2025
50AQI
50AQI
23rd March 2025
48AQI
48AQI
24th March 2025
44AQI
44AQI
25th March 2025
60AQI
60AQI
26th March 2025
60AQI
60AQI
27th March 2025
61AQI
61AQI
28th March 2025
50AQI
50AQI
29th March 2025
38AQI
38AQI
30th March 2025
36AQI
36AQI
31st March 2025
30AQI
30AQI
1st April 2025
31AQI
31AQI
2nd April 2025
30AQI
30AQI
3rd April 2025
25AQI
25AQI
4th April 2025
27AQI
27AQI
5th April 2025
30AQI
30AQI
6th April 2025
31AQI
31AQI
7th April 2025
32AQI
32AQI
8th April 2025
41AQI
41AQI
9th April 2025
30AQI
30AQI
10th April 2025
42AQI
42AQI
11th April 2025
42AQI
42AQI
12th April 2025
34AQI
34AQI
13th April 2025
43AQI
43AQI
14th April 2025
41AQI
41AQI
15th April 2025
32AQI
32AQI
16th April 2025
28AQI
28AQI
17th April 2025
41AQI
41AQI
18th April 2025
51AQI
51AQI
19th April 2025
51AQI
51AQI
20th April 2025
50AQI
50AQI
21st April 2025
38AQI
38AQI
22nd April 2025
41AQI
41AQI
23rd April 2025
32AQI
32AQI
24th April 2025
36AQI
36AQI
25th April 2025
36AQI
36AQI
26th April 2025
50AQI
50AQI
27th April 2025
47AQI
47AQI
28th April 2025
43AQI
43AQI
29th April 2025
32AQI
32AQI
30th April 2025
31AQI
31AQI
1st May 2025
33AQI
33AQI
2nd May 2025
32AQI
32AQI
3rd May 2025
36AQI
36AQI
4th May 2025
38AQI
38AQI
5th May 2025
35AQI
35AQI
6th May 2025
34AQI
34AQI
7th May 2025
30AQI
30AQI
8th May 2025
33AQI
33AQI
9th May 2025
34AQI
34AQI
10th May 2025
31AQI
31AQI
11th May 2025
32AQI
32AQI
12th May 2025
28AQI
28AQI
13th May 2025
38AQI
38AQI
14th May 2025
36AQI
36AQI
15th May 2025
39AQI
39AQI
16th May 2025
44AQI
44AQI
17th May 2025
33AQI
33AQI
18th May 2025
43AQI
43AQI
19th May 2025
43AQI
43AQI
20th May 2025
55AQI
55AQI
21st May 2025
56AQI
56AQI
22nd May 2025
47AQI
47AQI
23rd May 2025
45AQI
45AQI
24th May 2025
41AQI
41AQI
25th May 2025
35AQI
35AQI
26th May 2025
33AQI
33AQI
27th May 2025
34AQI
34AQI
28th May 2025
34AQI
34AQI
29th May 2025
34AQI
34AQI
30th May 2025
33AQI
33AQI
31st May 2025
28AQI
28AQI
1st June 2025
28AQI
28AQI
2nd June 2025
37AQI
37AQI
3rd June 2025
40AQI
40AQI
4th June 2025
32AQI
32AQI
5th June 2025
41AQI
41AQI
6th June 2025
47AQI
47AQI
7th June 2025
52AQI
52AQI
8th June 2025
57AQI
57AQI
9th June 2025
52AQI
52AQI
10th June 2025
45AQI
45AQI
11th June 2025
40AQI
40AQI
12th June 2025
40AQI
40AQI
13th June 2025
36AQI
36AQI
14th June 2025
36AQI
36AQI
15th June 2025
34AQI
34AQI
16th June 2025
32AQI
32AQI
17th June 2025
39AQI
39AQI
18th June 2025
41AQI
41AQI
19th June 2025
44AQI
44AQI
20th June 2025
35AQI
35AQI
21st June 2025
41AQI
41AQI
22nd June 2025
51AQI
51AQI
23rd June 2025
45AQI
45AQI
24th June 2025
42AQI
42AQI
25th June 2025
41AQI
41AQI
26th June 2025
34AQI
34AQI
27th June 2025
39AQI
39AQI
28th June 2025
34AQI
34AQI
29th June 2025
38AQI
38AQI
30th June 2025
41AQI
41AQI
1st July 2025
42AQI
42AQI
2nd July 2025
45AQI
45AQI
3rd July 2025
49AQI
49AQI
4th July 2025
48AQI
48AQI
5th July 2025
49AQI
49AQI
6th July 2025
50AQI
50AQI
7th July 2025
58AQI
58AQI
8th July 2025
63AQI
63AQI
9th July 2025
57AQI
57AQI
10th July 2025
46AQI
46AQI
11th July 2025
43AQI
43AQI
12th July 2025
42AQI
42AQI
13th July 2025
45AQI
45AQI
14th July 2025
43AQI
43AQI
15th July 2025
46AQI
46AQI
16th July 2025
47AQI
47AQI
17th July 2025
46AQI
46AQI
18th July 2025
43AQI
43AQI
19th July 2025
42AQI
42AQI
20th July 2025
46AQI
46AQI
21st July 2025
43AQI
43AQI
22nd July 2025
46AQI
46AQI
23rd July 2025
49AQI
49AQI
24th July 2025
50AQI
50AQI
25th July 2025
54AQI
54AQI
26th July 2025
53AQI
53AQI
27th July 2025
52AQI
52AQI
28th July 2025
48AQI
48AQI
29th July 2025
47AQI
47AQI
30th July 2025
53AQI
53AQI
31st July 2025
42AQI
42AQI
1st August 2025
44AQI
44AQI
2nd August 2025
40AQI
40AQI
3rd August 2025
38AQI
38AQI
4th August 2025
47AQI
47AQI
5th August 2025
42AQI
42AQI
6th August 2025
41AQI
41AQI
7th August 2025
35AQI
35AQI
8th August 2025
31AQI
31AQI
9th August 2025
30AQI
30AQI
10th August 2025
30AQI
30AQI
11th August 2025
29AQI
29AQI
31AQI
33AQI
41AQI
37AQI
37AQI
40AQI
48AQI
37AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202538AQI
31
26
2
27
4
28
2
29
2
26
4
24
7
11
202
21
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
January31AQI
202431AQI
16
1
4
1
1
12
29
1
27
4
31
4
23
30
31
209
6
Highest AQI recorded in
July39AQI
Lowest AQI recorded in
January17AQI
202340AQI
30
26
31
17
12
1
13
16
2
1
8
10
6
3
28
3
31
29
30
7
31
274
39
13
6
3
Highest AQI recorded in
June128AQI
Lowest AQI recorded in
September14AQI
202229AQI
30
20
1
1
28
3
29
1
31
30
24
1
29
29
2
30
27
308
7
1
Highest AQI recorded in
February43AQI
Lowest AQI recorded in
July17AQI
202126AQI
31
28
28
1
18
1
31
30
31
31
30
25
6
28
1
31
342
9
Highest AQI recorded in
October39AQI
Lowest AQI recorded in
July19AQI
202026AQI
11
2
15
6
15
3
29
1
23
8
23
6
2
19
29
30
31
225
26
2
Highest AQI recorded in
April41AQI
Lowest AQI recorded in
September15AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
40AQILeast Polluted Year Recorded
2020(Avg.)
26AQIChichijima's annual 2025 AQI (38) shows an average percentage change of 28.6% (worsened AQI) compared to previous years: 2020 (26), 2021 (26), 2022 (29), 2023 (40), 2024 (31).
