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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
7th Aug 2026
53AQI
Lowest AQI recorded on
6th Aug 2023
8AQI

Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 44 of Good air quality on the same day.

Day & Night AQI Trend: 14th Aug - 15th Aug 2026

Chichijima, Iwaki, Fukushima, Japan

AQI
Day
Night
.

4 AM14th Aug 2026

6 PM

3 AM15th Aug 2026

Day time
Avg. Highest Time
11AM14th Aug

48AQI

Avg. Lowest Time
6PM14th Aug

25AQI

Night time
Avg. Highest Time
2AM15th Aug

44AQI

Avg. Lowest Time
9PM14th Aug

25AQI

In the last 24 hours,

Chichijima's AQI reached its highest point of 48 at 11 AM during the Day, while the lowest point, 25, was recorded at 9 PM during the Night between 14th Aug and 15th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Chichijima, Iwaki, Fukushima, Japan

JulAug
17th - 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 - 14th14th - 15th15th
Day
Night
17th Jul 2026664 AMAQI
17th Jul 2026625 AMAQI
17th Jul 2026576 AMAQI
17th Jul 2026467 AMAQI
17th Jul 2026318 AMAQI
17th Jul 2026259 AMAQI
17th Jul 20262110 AMAQI
17th Jul 20261711 AMAQI
17th Jul 20262112 PMAQI
17th Jul 2026251 PMAQI
17th Jul 2026292 PMAQI
17th Jul 2026313 PMAQI
17th Jul 2026254 PMAQI
17th Jul 2026295 PMAQI
17th Jul 2026276 PMAQI
17th Jul 2026277 PMAQI
17th Jul 2026258 PMAQI
17th Jul 2026299 PMAQI
17th Jul 20262710 PMAQI
17th Jul 20262511 PMAQI
18th Jul 20262512 AMAQI
18th Jul 2026211 AMAQI
18th Jul 2026212 AMAQI
18th Jul 2026253 AMAQI

23°C22/25°C

18th Jul 2026214 AMAQI
18th Jul 2026295 AMAQI
18th Jul 2026296 AMAQI
18th Jul 2026297 AMAQI
18th Jul 2026298 AMAQI
18th Jul 2026259 AMAQI
18th Jul 20262510 AMAQI
18th Jul 20261711 AMAQI
18th Jul 20261412 PMAQI
18th Jul 2026271 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026293 PMAQI
18th Jul 2026254 PMAQI
18th Jul 2026255 PMAQI
18th Jul 2026276 PMAQI
18th Jul 2026237 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026239 PMAQI
18th Jul 20262510 PMAQI
18th Jul 20263811 PMAQI
19th Jul 20263212 AMAQI
19th Jul 2026271 AMAQI
19th Jul 2026292 AMAQI
19th Jul 2026213 AMAQI

23°C22/26°C

19th Jul 2026254 AMAQI
19th Jul 2026255 AMAQI
19th Jul 2026256 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026259 AMAQI
19th Jul 20262510 AMAQI
19th Jul 20262511 AMAQI
19th Jul 20262912 PMAQI
19th Jul 2026291 PMAQI
19th Jul 2026292 PMAQI
19th Jul 2026293 PMAQI
19th Jul 2026294 PMAQI
19th Jul 2026295 PMAQI
19th Jul 2026296 PMAQI
19th Jul 2026297 PMAQI
19th Jul 2026318 PMAQI
19th Jul 2026319 PMAQI
19th Jul 20264210 PMAQI
19th Jul 20263611 PMAQI
20th Jul 20262912 AMAQI
20th Jul 2026291 AMAQI
20th Jul 2026362 AMAQI
20th Jul 2026273 AMAQI

25°C21/29°C

20th Jul 2026294 AMAQI
20th Jul 2026315 AMAQI
20th Jul 2026316 AMAQI
20th Jul 2026317 AMAQI
20th Jul 2026348 AMAQI
20th Jul 2026459 AMAQI
20th Jul 20265410 AMAQI
20th Jul 20266011 AMAQI
20th Jul 20266812 PMAQI
20th Jul 2026621 PMAQI
20th Jul 2026582 PMAQI
20th Jul 2026543 PMAQI
20th Jul 2026544 PMAQI
20th Jul 2026505 PMAQI
20th Jul 2026566 PMAQI
20th Jul 2026587 PMAQI
20th Jul 2026588 PMAQI
20th Jul 2026569 PMAQI
20th Jul 20265610 PMAQI
20th Jul 20265711 PMAQI
21st Jul 20266412 AMAQI
21st Jul 2026691 AMAQI
21st Jul 2026722 AMAQI
21st Jul 2026703 AMAQI

26°C22/31°C

21st Jul 2026574 AMAQI
21st Jul 2026565 AMAQI
21st Jul 2026666 AMAQI
21st Jul 2026687 AMAQI
21st Jul 2026688 AMAQI
21st Jul 2026769 AMAQI
21st Jul 20266810 AMAQI
21st Jul 20266811 AMAQI
21st Jul 2026701 PMAQI
21st Jul 2026742 PMAQI
21st Jul 2026723 PMAQI
21st Jul 2026694 PMAQI
21st Jul 2026735 PMAQI
21st Jul 2026696 PMAQI
21st Jul 2026947 PMAQI
21st Jul 2026688 PMAQI
21st Jul 2026679 PMAQI
21st Jul 20266710 PMAQI
21st Jul 20266511 PMAQI
22nd Jul 20266712 AMAQI
22nd Jul 2026701 AMAQI
22nd Jul 2026752 AMAQI
22nd Jul 2026753 AMAQI

26°C23/30°C

22nd Jul 2026724 AMAQI
22nd Jul 2026625 AMAQI
22nd Jul 2026606 AMAQI
22nd Jul 2026577 AMAQI
22nd Jul 2026608 AMAQI
22nd Jul 2026689 AMAQI
22nd Jul 20267210 AMAQI
22nd Jul 20266711 AMAQI
22nd Jul 20267112 PMAQI
22nd Jul 2026731 PMAQI
22nd Jul 2026692 PMAQI
22nd Jul 2026683 PMAQI
22nd Jul 2026724 PMAQI
22nd Jul 2026715 PMAQI
22nd Jul 2026736 PMAQI
22nd Jul 2026807 PMAQI
22nd Jul 2026828 PMAQI
22nd Jul 2026829 PMAQI
22nd Jul 20268010 PMAQI
22nd Jul 20268811 PMAQI
23rd Jul 20268912 AMAQI
23rd Jul 2026901 AMAQI
23rd Jul 2026882 AMAQI
23rd Jul 2026843 AMAQI

26°C23/32°C

23rd Jul 2026784 AMAQI
23rd Jul 2026725 AMAQI
23rd Jul 2026716 AMAQI
23rd Jul 2026627 AMAQI
23rd Jul 2026628 AMAQI
23rd Jul 2026689 AMAQI
23rd Jul 20266010 AMAQI
23rd Jul 20264611 AMAQI
23rd Jul 20263812 PMAQI
23rd Jul 2026381 PMAQI
23rd Jul 2026342 PMAQI
23rd Jul 2026293 PMAQI
23rd Jul 2026254 PMAQI
23rd Jul 2026235 PMAQI
23rd Jul 2026256 PMAQI
23rd Jul 2026257 PMAQI
23rd Jul 2026258 PMAQI
23rd Jul 2026259 PMAQI
23rd Jul 20262510 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026253 AMAQI

26°C23/30°C

24th Jul 2026254 AMAQI
24th Jul 2026295 AMAQI
24th Jul 2026346 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026299 AMAQI
24th Jul 20262910 AMAQI
24th Jul 20262711 AMAQI
24th Jul 20262912 PMAQI
24th Jul 2026311 PMAQI
24th Jul 2026292 PMAQI
24th Jul 2026253 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026276 PMAQI
24th Jul 2026407 PMAQI
24th Jul 20261008 PMAQI
24th Jul 20261049 PMAQI
24th Jul 202610510 PMAQI
24th Jul 20265211 PMAQI
25th Jul 20261012 AMAQI
25th Jul 202681 AMAQI
25th Jul 202682 AMAQI
25th Jul 202683 AMAQI

22°C22/23°C

25th Jul 2026124 AMAQI
25th Jul 2026165 AMAQI
25th Jul 2026256 AMAQI
25th Jul 2026427 AMAQI
25th Jul 2026148 AMAQI
25th Jul 2026129 AMAQI
25th Jul 20261910 AMAQI
25th Jul 20261911 AMAQI
25th Jul 20261812 PMAQI
25th Jul 2026161 PMAQI
25th Jul 2026162 PMAQI
25th Jul 2026183 PMAQI
25th Jul 2026104 PMAQI
25th Jul 2026195 PMAQI
25th Jul 2026206 PMAQI
25th Jul 2026177 PMAQI
25th Jul 2026188 PMAQI
25th Jul 2026209 PMAQI
25th Jul 20262310 PMAQI
25th Jul 20261811 PMAQI
26th Jul 20261812 AMAQI
26th Jul 2026151 AMAQI
26th Jul 2026192 AMAQI
26th Jul 2026203 AMAQI

23°C21/26°C

26th Jul 2026194 AMAQI
26th Jul 2026175 AMAQI
26th Jul 2026186 AMAQI
26th Jul 2026167 AMAQI
26th Jul 2026148 AMAQI
26th Jul 2026189 AMAQI
26th Jul 20261510 AMAQI
26th Jul 20261511 AMAQI
26th Jul 20261612 PMAQI
26th Jul 2026151 PMAQI
26th Jul 2026172 PMAQI
26th Jul 2026163 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026215 PMAQI
26th Jul 2026186 PMAQI
26th Jul 2026227 PMAQI
26th Jul 2026208 PMAQI
26th Jul 2026259 PMAQI
26th Jul 20262910 PMAQI
26th Jul 20262511 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026291 AMAQI
27th Jul 2026252 AMAQI
27th Jul 2026273 AMAQI

23°C21/26°C

27th Jul 2026294 AMAQI
27th Jul 2026295 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026219 AMAQI
27th Jul 20263410 AMAQI
27th Jul 20262311 AMAQI
27th Jul 20263212 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026252 PMAQI
27th Jul 2026293 PMAQI
27th Jul 2026404 PMAQI
27th Jul 2026445 PMAQI
27th Jul 2026406 PMAQI
27th Jul 2026367 PMAQI
27th Jul 2026368 PMAQI
27th Jul 2026369 PMAQI
27th Jul 20263810 PMAQI
27th Jul 20264211 PMAQI
28th Jul 20263812 AMAQI
28th Jul 2026551 AMAQI
28th Jul 2026572 AMAQI
28th Jul 2026663 AMAQI

22°C20/25°C

28th Jul 2026214 AMAQI
28th Jul 2026235 AMAQI
28th Jul 2026176 AMAQI
28th Jul 2026197 AMAQI
28th Jul 2026238 AMAQI
28th Jul 2026189 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262011 AMAQI
28th Jul 20262112 PMAQI
28th Jul 2026221 PMAQI
28th Jul 2026252 PMAQI
28th Jul 2026253 PMAQI
28th Jul 2026234 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026546 PMAQI
28th Jul 2026517 PMAQI
28th Jul 2026468 PMAQI
28th Jul 2026889 PMAQI
28th Jul 20267610 PMAQI
28th Jul 20266911 PMAQI
29th Jul 20267112 AMAQI
29th Jul 2026721 AMAQI
29th Jul 2026682 AMAQI
29th Jul 2026663 AMAQI

22°C20/25°C

29th Jul 2026294 AMAQI
29th Jul 2026235 AMAQI
29th Jul 2026226 AMAQI
29th Jul 2026177 AMAQI
29th Jul 2026528 AMAQI
29th Jul 2026959 AMAQI
29th Jul 20269010 AMAQI
29th Jul 20266711 AMAQI
29th Jul 20261812 PMAQI
29th Jul 2026481 PMAQI
29th Jul 2026822 PMAQI
29th Jul 2026113 PMAQI
29th Jul 2026104 PMAQI
29th Jul 2026175 PMAQI
29th Jul 2026186 PMAQI
29th Jul 2026237 PMAQI
29th Jul 2026198 PMAQI
29th Jul 2026209 PMAQI
29th Jul 20261910 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20261912 AMAQI
30th Jul 2026201 AMAQI
30th Jul 2026222 AMAQI
30th Jul 2026203 AMAQI

23°C20/28°C

30th Jul 2026194 AMAQI
30th Jul 2026195 AMAQI
30th Jul 2026186 AMAQI
30th Jul 2026197 AMAQI
30th Jul 2026178 AMAQI
30th Jul 2026169 AMAQI
30th Jul 20262010 AMAQI
30th Jul 20262011 AMAQI
30th Jul 20261812 PMAQI
30th Jul 2026161 PMAQI
30th Jul 2026182 PMAQI
30th Jul 2026183 PMAQI
30th Jul 2026174 PMAQI
30th Jul 2026195 PMAQI
30th Jul 2026246 PMAQI
30th Jul 2026367 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026389 PMAQI
30th Jul 20263110 PMAQI
30th Jul 20263811 PMAQI
31st Jul 20263112 AMAQI
31st Jul 2026361 AMAQI
31st Jul 2026292 AMAQI
31st Jul 2026383 AMAQI

25°C21/30°C

31st Jul 2026324 AMAQI
31st Jul 2026295 AMAQI
31st Jul 2026306 AMAQI
31st Jul 2026387 AMAQI
31st Jul 2026428 AMAQI
31st Jul 2026389 AMAQI
31st Jul 20264210 AMAQI
31st Jul 20263611 AMAQI
31st Jul 20262512 PMAQI
31st Jul 2026291 PMAQI
31st Jul 2026272 PMAQI
31st Jul 2026303 PMAQI
31st Jul 2026364 PMAQI
31st Jul 2026335 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026427 PMAQI
31st Jul 2026428 PMAQI
31st Jul 2026279 PMAQI
31st Jul 20263110 PMAQI
31st Jul 20263311 PMAQI
1st Aug 20264012 AMAQI
1st Aug 2026331 AMAQI
1st Aug 2026332 AMAQI
1st Aug 2026263 AMAQI

25°C22/27°C

1st Aug 2026264 AMAQI
1st Aug 2026315 AMAQI
1st Aug 2026296 AMAQI
1st Aug 2026367 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026339 AMAQI
1st Aug 20265010 AMAQI
1st Aug 20265011 AMAQI
1st Aug 20265512 PMAQI
1st Aug 2026521 PMAQI
1st Aug 2026462 PMAQI
1st Aug 2026463 PMAQI
1st Aug 2026464 PMAQI
1st Aug 2026465 PMAQI
1st Aug 2026566 PMAQI
1st Aug 2026567 PMAQI
1st Aug 2026718 PMAQI
1st Aug 2026489 PMAQI
1st Aug 20265910 PMAQI
1st Aug 20265411 PMAQI
2nd Aug 20264012 AMAQI
2nd Aug 2026561 AMAQI
2nd Aug 2026252 AMAQI
2nd Aug 2026423 AMAQI

25°C21/30°C

2nd Aug 2026384 AMAQI
2nd Aug 2026295 AMAQI
2nd Aug 2026426 AMAQI
2nd Aug 2026257 AMAQI
2nd Aug 2026218 AMAQI
2nd Aug 2026259 AMAQI
2nd Aug 20262310 AMAQI
2nd Aug 20262111 AMAQI
2nd Aug 20262512 PMAQI
2nd Aug 2026211 PMAQI
2nd Aug 2026252 PMAQI
2nd Aug 2026253 PMAQI
2nd Aug 2026194 PMAQI
2nd Aug 2026145 PMAQI
2nd Aug 2026146 PMAQI
2nd Aug 2026147 PMAQI
2nd Aug 2026128 PMAQI
2nd Aug 2026149 PMAQI
2nd Aug 20261410 PMAQI
2nd Aug 20261211 PMAQI
3rd Aug 20261212 AMAQI
3rd Aug 2026141 AMAQI
3rd Aug 2026122 AMAQI
3rd Aug 2026143 AMAQI

23°C21/25°C

3rd Aug 2026214 AMAQI
3rd Aug 2026195 AMAQI
3rd Aug 2026216 AMAQI
3rd Aug 2026277 AMAQI
3rd Aug 2026278 AMAQI
3rd Aug 2026279 AMAQI
3rd Aug 20262710 AMAQI
3rd Aug 20262911 AMAQI
3rd Aug 20262712 PMAQI
3rd Aug 2026291 PMAQI
3rd Aug 2026292 PMAQI
3rd Aug 2026313 PMAQI
3rd Aug 2026294 PMAQI
3rd Aug 2026335 PMAQI
3rd Aug 2026336 PMAQI
3rd Aug 2026337 PMAQI
3rd Aug 2026388 PMAQI
3rd Aug 2026389 PMAQI
3rd Aug 20263610 PMAQI
3rd Aug 20263611 PMAQI
4th Aug 20264012 AMAQI
4th Aug 2026461 AMAQI
4th Aug 2026442 AMAQI
4th Aug 2026463 AMAQI

21°C19/23°C

4th Aug 2026484 AMAQI
4th Aug 2026525 AMAQI
4th Aug 2026556 AMAQI
4th Aug 2026527 AMAQI
4th Aug 2026528 AMAQI
4th Aug 2026569 AMAQI
4th Aug 20265710 AMAQI
4th Aug 20264611 AMAQI
4th Aug 20261612 PMAQI
4th Aug 2026141 PMAQI
4th Aug 2026162 PMAQI
4th Aug 2026153 PMAQI
4th Aug 2026364 PMAQI
4th Aug 2026665 PMAQI
4th Aug 2026586 PMAQI
4th Aug 2026627 PMAQI
4th Aug 2026588 PMAQI
4th Aug 2026689 PMAQI
4th Aug 20266410 PMAQI
4th Aug 20266511 PMAQI
5th Aug 20265412 AMAQI
5th Aug 2026551 AMAQI
5th Aug 2026542 AMAQI
5th Aug 2026543 AMAQI

21°C18/24°C

5th Aug 2026594 AMAQI
5th Aug 2026555 AMAQI
5th Aug 2026526 AMAQI
5th Aug 2026567 AMAQI
5th Aug 2026608 AMAQI
5th Aug 2026579 AMAQI
5th Aug 20265710 AMAQI
5th Aug 20265011 AMAQI
5th Aug 20265412 PMAQI
5th Aug 2026251 PMAQI
5th Aug 2026252 PMAQI
5th Aug 2026293 PMAQI
5th Aug 2026424 PMAQI
5th Aug 2026565 PMAQI
5th Aug 2026576 PMAQI
5th Aug 2026577 PMAQI
5th Aug 2026578 PMAQI
5th Aug 2026649 PMAQI
5th Aug 20266410 PMAQI
5th Aug 20266711 PMAQI
6th Aug 20266212 AMAQI
6th Aug 2026581 AMAQI
6th Aug 2026532 AMAQI
6th Aug 2026533 AMAQI

22°C18/26°C

6th Aug 2026534 AMAQI
6th Aug 2026545 AMAQI
6th Aug 2026506 AMAQI
6th Aug 2026547 AMAQI
6th Aug 2026468 AMAQI
6th Aug 2026509 AMAQI
6th Aug 20265810 AMAQI
6th Aug 20265411 AMAQI
6th Aug 20265312 PMAQI
6th Aug 2026361 PMAQI
6th Aug 2026312 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026364 PMAQI
6th Aug 2026425 PMAQI
6th Aug 2026386 PMAQI
6th Aug 2026427 PMAQI
6th Aug 2026408 PMAQI
6th Aug 2026489 PMAQI
6th Aug 20266010 PMAQI
6th Aug 20265911 PMAQI
7th Aug 20267412 AMAQI
7th Aug 2026681 AMAQI
7th Aug 2026702 AMAQI
7th Aug 2026653 AMAQI

25°C23/29°C

7th Aug 2026654 AMAQI
7th Aug 2026575 AMAQI
7th Aug 2026556 AMAQI
7th Aug 2026587 AMAQI
7th Aug 2026598 AMAQI
7th Aug 2026579 AMAQI
7th Aug 20265510 AMAQI
7th Aug 20266011 AMAQI
7th Aug 20264412 PMAQI
7th Aug 2026401 PMAQI
7th Aug 2026482 PMAQI
7th Aug 2026403 PMAQI
7th Aug 2026424 PMAQI
7th Aug 2026465 PMAQI
7th Aug 2026466 PMAQI
7th Aug 2026367 PMAQI
7th Aug 2026448 PMAQI
7th Aug 2026309 PMAQI
7th Aug 20265110 PMAQI
7th Aug 20265111 PMAQI
8th Aug 20265712 AMAQI
8th Aug 2026561 AMAQI
8th Aug 2026422 AMAQI
8th Aug 2026403 AMAQI

25°C22/29°C

8th Aug 2026364 AMAQI
8th Aug 2026295 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026237 AMAQI
8th Aug 2026278 AMAQI
8th Aug 2026269 AMAQI
8th Aug 20262810 AMAQI
8th Aug 20262711 AMAQI
8th Aug 20262912 PMAQI
8th Aug 2026291 PMAQI
8th Aug 2026292 PMAQI
8th Aug 2026293 PMAQI
8th Aug 2026344 PMAQI
8th Aug 2026275 PMAQI
8th Aug 2026276 PMAQI
8th Aug 2026237 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026319 PMAQI
8th Aug 20262310 PMAQI
8th Aug 20262211 PMAQI
9th Aug 20263112 AMAQI
9th Aug 2026271 AMAQI
9th Aug 2026292 AMAQI
9th Aug 2026283 AMAQI

25°C22/29°C

9th Aug 2026474 AMAQI
9th Aug 2026285 AMAQI
9th Aug 2026346 AMAQI
9th Aug 2026277 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026409 AMAQI
9th Aug 20264410 AMAQI
9th Aug 20264211 AMAQI
9th Aug 20264212 PMAQI
9th Aug 2026421 PMAQI
9th Aug 2026402 PMAQI
9th Aug 2026443 PMAQI
9th Aug 2026424 PMAQI
9th Aug 2026445 PMAQI
9th Aug 2026346 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026278 PMAQI
9th Aug 2026299 PMAQI
9th Aug 20263310 PMAQI
9th Aug 20263311 PMAQI
10th Aug 20263612 AMAQI
10th Aug 2026301 AMAQI
10th Aug 2026212 AMAQI
10th Aug 2026403 AMAQI

24°C21/27°C

10th Aug 2026444 AMAQI
10th Aug 2026295 AMAQI
10th Aug 2026426 AMAQI
10th Aug 2026257 AMAQI
10th Aug 2026258 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262110 AMAQI
10th Aug 20262111 AMAQI
10th Aug 20262512 PMAQI
10th Aug 2026231 PMAQI
10th Aug 2026272 PMAQI
10th Aug 2026253 PMAQI
10th Aug 2026274 PMAQI
10th Aug 2026365 PMAQI
10th Aug 2026276 PMAQI
10th Aug 2026337 PMAQI
10th Aug 2026348 PMAQI
10th Aug 2026339 PMAQI
10th Aug 20263310 PMAQI
10th Aug 20263611 PMAQI
11th Aug 20263612 AMAQI
11th Aug 2026471 AMAQI
11th Aug 2026552 AMAQI
11th Aug 2026653 AMAQI

22°C20/25°C

11th Aug 2026624 AMAQI
11th Aug 2026535 AMAQI
11th Aug 2026366 AMAQI
11th Aug 2026277 AMAQI
11th Aug 2026278 AMAQI
11th Aug 2026299 AMAQI
11th Aug 20262310 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262312 PMAQI
11th Aug 2026211 PMAQI
11th Aug 2026212 PMAQI
11th Aug 2026173 PMAQI
11th Aug 2026214 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026276 PMAQI
11th Aug 2026297 PMAQI
11th Aug 2026388 PMAQI
11th Aug 2026369 PMAQI
11th Aug 20263310 PMAQI
11th Aug 20263111 PMAQI
12th Aug 20263612 AMAQI
12th Aug 2026381 AMAQI
12th Aug 2026322 AMAQI
12th Aug 2026213 AMAQI

20°C19/22°C

12th Aug 2026274 AMAQI
12th Aug 2026235 AMAQI
12th Aug 2026276 AMAQI
12th Aug 2026367 AMAQI
12th Aug 2026368 AMAQI
12th Aug 2026259 AMAQI
12th Aug 20262710 AMAQI
12th Aug 20262111 AMAQI
12th Aug 20261712 PMAQI
12th Aug 2026291 PMAQI
12th Aug 2026232 PMAQI
12th Aug 2026253 PMAQI
12th Aug 2026294 PMAQI
12th Aug 2026295 PMAQI
12th Aug 2026296 PMAQI
12th Aug 2026277 PMAQI
12th Aug 2026238 PMAQI
12th Aug 2026309 PMAQI
12th Aug 20263810 PMAQI
12th Aug 20262111 PMAQI
13th Aug 20262112 AMAQI
13th Aug 2026231 AMAQI
13th Aug 2026232 AMAQI
13th Aug 2026363 AMAQI

22°C21/26°C

13th Aug 2026464 AMAQI
13th Aug 2026485 AMAQI
13th Aug 2026426 AMAQI
13th Aug 2026507 AMAQI
13th Aug 2026468 AMAQI
13th Aug 2026529 AMAQI
13th Aug 20266010 AMAQI
13th Aug 20265611 AMAQI
13th Aug 20265412 PMAQI
13th Aug 2026461 PMAQI
13th Aug 2026402 PMAQI
13th Aug 2026313 PMAQI
13th Aug 2026364 PMAQI
13th Aug 2026365 PMAQI
13th Aug 2026426 PMAQI
13th Aug 2026447 PMAQI
13th Aug 2026488 PMAQI
13th Aug 2026449 PMAQI
13th Aug 20264710 PMAQI
13th Aug 20264411 PMAQI
14th Aug 20263212 AMAQI
14th Aug 2026291 AMAQI
14th Aug 2026312 AMAQI
14th Aug 2026313 AMAQI

24°C21/27°C

14th Aug 2026364 AMAQI
14th Aug 2026255 AMAQI
14th Aug 2026316 AMAQI
14th Aug 2026277 AMAQI
14th Aug 2026308 AMAQI
14th Aug 2026299 AMAQI
14th Aug 20264010 AMAQI
14th Aug 20264811 AMAQI
14th Aug 20263812 PMAQI
14th Aug 2026341 PMAQI
14th Aug 2026342 PMAQI
14th Aug 2026383 PMAQI
14th Aug 2026294 PMAQI
14th Aug 2026275 PMAQI
14th Aug 2026256 PMAQI
14th Aug 2026297 PMAQI
14th Aug 2026278 PMAQI
14th Aug 2026259 PMAQI
14th Aug 20263810 PMAQI
14th Aug 20264211 PMAQI
15th Aug 20263112 AMAQI
15th Aug 2026361 AMAQI
15th Aug 2026442 AMAQI
15th Aug 2026283 AMAQI

24°C22/27°C

15th Aug 2026364 AMAQI
4 AM
15th Aug 2026295 AMAQI
15th Aug 2026366 AMAQI
15th Aug 2026367 AMAQI
15th Aug 2026368 AMAQI
15th Aug 2026299 AMAQI
15th Aug 20265010 AMAQI
15th Aug 20265511 AMAQI
11 AM
15th Aug 20264912 PMAQI
15th Aug 2026341 PMAQI
15th Aug 2026502 PMAQI
15th Aug 2026503 PMAQI
15th Aug 2026494 PMAQI
15th Aug 2026555 PMAQI
15th Aug 2026586 PMAQI
6 PM
15th Aug 2026637 PMAQI
15th Aug 2026538 PMAQI
15th Aug 2026529 PMAQI
15th Aug 20264610 PMAQI
15th Aug 20264011 PMAQI
11 PM
3 AM

23°C21/25°C

Day time
Avg. Highest Time
10 AM

41AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
3 PM

32AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 41), while the lowest AQI was between 3 PM to 3 PM (Avg. 32).
Night time
Avg. Highest Time
10 PM

44AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
7 PM

39AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 44), while the lowest AQI was between 7 PM to 7 PM (Avg. 39).

2026 Days Vs Air Quality

Chichijima, Iwaki, Fukushima, Japan

2026

87%

198

13%

29

Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)

Good
198 Days
Moderate
29 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 87%

Health Risk Level:

Low

In 2026, 87% of 227 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

Chichijima, Iwaki, Fukushima, Japan

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
17AQI (US)
2nd January 2026
19AQI (US)
3rd January 2026
16AQI (US)
4th January 2026
20AQI (US)
5th January 2026
18AQI (US)
6th January 2026
20AQI (US)
7th January 2026
25AQI (US)
8th January 2026
28AQI (US)
9th January 2026
21AQI (US)
10th January 2026
27AQI (US)
11th January 2026
28AQI (US)
12th January 2026
17AQI (US)
13th January 2026
16AQI (US)
14th January 2026
11AQI (US)
15th January 2026
23AQI (US)
16th January 2026
36AQI (US)
17th January 2026
43AQI (US)
18th January 2026
20AQI (US)
19th January 2026
31AQI (US)
20th January 2026
29AQI (US)
21st January 2026
16AQI (US)
22nd January 2026
20AQI (US)
23rd January 2026
33AQI (US)
24th January 2026
35AQI (US)
25th January 2026
41AQI (US)
26th January 2026
24AQI (US)
27th January 2026
36AQI (US)
28th January 2026
29AQI (US)
29th January 2026
25AQI (US)
30th January 2026
39AQI (US)
31st January 2026
40AQI (US)
1st February 2026
31AQI (US)
2nd February 2026
36AQI (US)
3rd February 2026
30AQI (US)
4th February 2026
37AQI (US)
5th February 2026
40AQI (US)
6th February 2026
37AQI (US)
7th February 2026
22AQI (US)
8th February 2026
22AQI (US)
9th February 2026
34AQI (US)
10th February 2026
42AQI (US)
11th February 2026
49AQI (US)
12th February 2026
34AQI (US)
13th February 2026
30AQI (US)
14th February 2026
57AQI (US)
15th February 2026
55AQI (US)
16th February 2026
41AQI (US)
17th February 2026
20AQI (US)
18th February 2026
33AQI (US)
19th February 2026
27AQI (US)
20th February 2026
33AQI (US)
21st February 2026
41AQI (US)
22nd February 2026
42AQI (US)
23rd February 2026
41AQI (US)
24th February 2026
41AQI (US)
25th February 2026
40AQI (US)
26th February 2026
29AQI (US)
27th February 2026
41AQI (US)
28th February 2026
34AQI (US)
1st March 2026
36AQI (US)
2nd March 2026
68AQI (US)
3rd March 2026
45AQI (US)
4th March 2026
59AQI (US)
5th March 2026
61AQI (US)
6th March 2026
52AQI (US)
7th March 2026
44AQI (US)
8th March 2026
43AQI (US)
9th March 2026
44AQI (US)
10th March 2026
55AQI (US)
11th March 2026
56AQI (US)
12th March 2026
61AQI (US)
13th March 2026
36AQI (US)
14th March 2026
47AQI (US)
15th March 2026
59AQI (US)
16th March 2026
53AQI (US)
17th March 2026
44AQI (US)
18th March 2026
30AQI (US)
19th March 2026
24AQI (US)
20th March 2026
32AQI (US)
21st March 2026
52AQI (US)
22nd March 2026
40AQI (US)
23rd March 2026
43AQI (US)
24th March 2026
56AQI (US)
25th March 2026
46AQI (US)
26th March 2026
27AQI (US)
27th March 2026
25AQI (US)
28th March 2026
48AQI (US)
29th March 2026
47AQI (US)
30th March 2026
54AQI (US)
31st March 2026
40AQI (US)
1st April 2026
27AQI (US)
2nd April 2026
27AQI (US)
3rd April 2026
50AQI (US)
4th April 2026
49AQI (US)
5th April 2026
36AQI (US)
6th April 2026
18AQI (US)
7th April 2026
30AQI (US)
8th April 2026
25AQI (US)
9th April 2026
33AQI (US)
10th April 2026
47AQI (US)
11th April 2026
22AQI (US)
12th April 2026
20AQI (US)
13th April 2026
33AQI (US)
14th April 2026
33AQI (US)
15th April 2026
37AQI (US)
16th April 2026
32AQI (US)
17th April 2026
33AQI (US)
18th April 2026
44AQI (US)
19th April 2026
30AQI (US)
20th April 2026
30AQI (US)
21st April 2026
35AQI (US)
22nd April 2026
41AQI (US)
23rd April 2026
29AQI (US)
24th April 2026
26AQI (US)
25th April 2026
23AQI (US)
26th April 2026
48AQI (US)
27th April 2026
48AQI (US)
28th April 2026
41AQI (US)
29th April 2026
38AQI (US)
30th April 2026
38AQI (US)
1st May 2026
48AQI (US)
2nd May 2026
54AQI (US)
3rd May 2026
43AQI (US)
4th May 2026
30AQI (US)
5th May 2026
26AQI (US)
6th May 2026
31AQI (US)
7th May 2026
31AQI (US)
8th May 2026
28AQI (US)
9th May 2026
28AQI (US)
10th May 2026
29AQI (US)
11th May 2026
30AQI (US)
12th May 2026
33AQI (US)
13th May 2026
39AQI (US)
14th May 2026
36AQI (US)
15th May 2026
30AQI (US)
16th May 2026
85AQI (US)
17th May 2026
70AQI (US)
18th May 2026
54AQI (US)
19th May 2026
49AQI (US)
20th May 2026
61AQI (US)
21st May 2026
58AQI (US)
22nd May 2026
60AQI (US)
23rd May 2026
53AQI (US)
24th May 2026
58AQI (US)
25th May 2026
46AQI (US)
26th May 2026
39AQI (US)
27th May 2026
27AQI (US)
28th May 2026
27AQI (US)
29th May 2026
25AQI (US)
30th May 2026
24AQI (US)
31st May 2026
29AQI (US)
1st June 2026
32AQI (US)
2nd June 2026
30AQI (US)
3rd June 2026
16AQI (US)
4th June 2026
18AQI (US)
5th June 2026
23AQI (US)
6th June 2026
24AQI (US)
7th June 2026
23AQI (US)
8th June 2026
25AQI (US)
9th June 2026
24AQI (US)
10th June 2026
22AQI (US)
11th June 2026
24AQI (US)
12th June 2026
26AQI (US)
13th June 2026
26AQI (US)
14th June 2026
24AQI (US)
15th June 2026
17AQI (US)
16th June 2026
16AQI (US)
17th June 2026
25AQI (US)
18th June 2026
26AQI (US)
19th June 2026
26AQI (US)
20th June 2026
23AQI (US)
21st June 2026
21AQI (US)
22nd June 2026
20AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
23AQI (US)
25th June 2026
26AQI (US)
26th June 2026
30AQI (US)
27th June 2026
28AQI (US)
28th June 2026
27AQI (US)
29th June 2026
25AQI (US)
30th June 2026
23AQI (US)
1st July 2026
28AQI (US)
2nd July 2026
27AQI (US)
3rd July 2026
20AQI (US)
4th July 2026
34AQI (US)
5th July 2026
33AQI (US)
6th July 2026
28AQI (US)
7th July 2026
27AQI (US)
8th July 2026
26AQI (US)
9th July 2026
23AQI (US)
10th July 2026
29AQI (US)
11th July 2026
31AQI (US)
12th July 2026
28AQI (US)
13th July 2026
34AQI (US)
14th July 2026
38AQI (US)
15th July 2026
52AQI (US)
16th July 2026
66AQI (US)
17th July 2026
38AQI (US)
18th July 2026
25AQI (US)
19th July 2026
28AQI (US)
20th July 2026
47AQI (US)
21st July 2026
69AQI (US)
22nd July 2026
71AQI (US)
23rd July 2026
50AQI (US)
24th July 2026
38AQI (US)
25th July 2026
17AQI (US)
26th July 2026
19AQI (US)
27th July 2026
31AQI (US)
28th July 2026
38AQI (US)
29th July 2026
41AQI (US)
30th July 2026
22AQI (US)
31st July 2026
34AQI (US)
1st August 2026
44AQI (US)
2nd August 2026
25AQI (US)
3rd August 2026
27AQI (US)
4th August 2026
47AQI (US)
5th August 2026
52AQI (US)
6th August 2026
48AQI (US)
7th August 2026
53AQI (US)
8th August 2026
31AQI (US)
9th August 2026
35AQI (US)
10th August 2026
30AQI (US)
11th August 2026
34AQI (US)
12th August 2026
28AQI (US)
13th August 2026
42AQI (US)
14th August 2026
32AQI (US)
15th August 2026
44AQI (US)
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

26AQI (US)

36AQI (US)

46AQI (US)

34AQI (US)

41AQI (US)

24AQI (US)

35AQI (US)

38AQI (US)

No. of days

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

202635AQI (US)

31
26
2
19
12
30
22
9
30
27
4
13
2
198
29

Highest AQI (US) recorded in

March

46AQI (US)

Lowest AQI (US) recorded in

June

24AQI (US)

202539AQI (US)

31
26
2
27
4
28
2
29
2
26
4
24
7
31
30
14
17
24
6
29
2
319
46

Highest AQI (US) recorded in

July

48AQI (US)

Lowest AQI (US) recorded in

September

30AQI (US)

202431AQI (US)

16
1
4
1
1
12
29
1
27
4
31
4
23
30
31
209
6

Highest AQI (US) recorded in

July

39AQI (US)

Lowest AQI (US) recorded in

January

17AQI (US)

202340AQI (US)

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 (US) recorded in

June

128AQI (US)

Lowest AQI (US) recorded in

September

14AQI (US)

202229AQI (US)

30
20
1
1
28
3
29
1
31
30
24
1
29
29
2
30
27
308
7
1

Highest AQI (US) recorded in

February

43AQI (US)

Lowest AQI (US) recorded in

August

17AQI (US)

202126AQI (US)

31
28
28
1
18
1
31
30
31
31
30
25
6
28
1
31
342
9

Highest AQI (US) recorded in

October

39AQI (US)

Lowest AQI (US) recorded in

July

19AQI (US)

202026AQI (US)

11
2
15
6
15
3
29
1
23
8
23
6
2
19
29
30
31
225
26
2

Highest AQI (US) recorded in

April

41AQI (US)

Lowest AQI (US) recorded in

September

15AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
40AQI (US)
Least Polluted Year Recorded
2020(Avg.)
26AQI (US)

Chichijima's annual 2026 AQI (US) (35) shows an average percentage change of 13.3% (worsened AQI (US)) compared to previous years: 2020 (26), 2021 (26), 2022 (29), 2023 (40), 2024 (31), 2025 (39).