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HistoryAQIPM2.5PM10COSO2NO2O3

Goichuonishi, Ichihara, Chiba, 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+

February Air Quality Analysis

Goichuonishi, Ichihara, Chiba, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
24th Feb 2023
67AQI
Lowest AQI recorded on
7th Feb 2026
14AQI

Same Day Analysis (15th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 53 of Moderate air quality, showing improvement over 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

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

Goichuonishi, Ichihara, Chiba, Japan

AQI
Day
Night
.

6 AM14th Feb 2026

5 PM

5 AM15th Feb 2026

Day time
Avg. Highest Time
10AM14th Feb

78AQI

Avg. Lowest Time
7AM14th Feb

50AQI

Night time
Avg. Highest Time
9PM14th Feb

62AQI

Avg. Lowest Time
2AM15th Feb

36AQI

In the last 24 hours,

Goichuonishi's AQI reached its highest point of 78 at 10 AM during the Day, while the lowest point, 36, was recorded at 2 AM during the Night between 14th Feb and 15th Feb 2026.

Day & Night AQI Trend : Jan - Feb 2026

Goichuonishi, Ichihara, Chiba, Japan

JanFeb
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 Jan 2026466 AMAQI
17th Jan 2026467 AMAQI
17th Jan 2026498 AMAQI
17th Jan 2026339 AMAQI
17th Jan 20264210 AMAQI
17th Jan 20265411 AMAQI
17th Jan 20265312 PMAQI
17th Jan 2026561 PMAQI
17th Jan 2026532 PMAQI
17th Jan 2026443 PMAQI
17th Jan 2026564 PMAQI
17th Jan 2026605 PMAQI
17th Jan 2026586 PMAQI
17th Jan 2026627 PMAQI
17th Jan 2026768 PMAQI
17th Jan 2026809 PMAQI
17th Jan 20265410 PMAQI
17th Jan 20263811 PMAQI
18th Jan 20265612 AMAQI
18th Jan 2026381 AMAQI
18th Jan 2026422 AMAQI
18th Jan 2026323 AMAQI
18th Jan 2026234 AMAQI
18th Jan 2026405 AMAQI

11°C9/13°C

18th Jan 2026176 AMAQI
18th Jan 2026147 AMAQI
18th Jan 2026178 AMAQI
18th Jan 2026259 AMAQI
18th Jan 20262510 AMAQI
18th Jan 20263011 AMAQI
18th Jan 20261212 PMAQI
18th Jan 2026171 PMAQI
18th Jan 2026172 PMAQI
18th Jan 2026253 PMAQI
18th Jan 2026254 PMAQI
18th Jan 2026365 PMAQI
18th Jan 2026316 PMAQI
18th Jan 2026297 PMAQI
18th Jan 2026298 PMAQI
18th Jan 2026319 PMAQI
18th Jan 2026810 PMAQI
18th Jan 20261211 PMAQI
19th Jan 20261212 AMAQI
19th Jan 2026171 AMAQI
19th Jan 2026122 AMAQI
19th Jan 2026163 AMAQI
19th Jan 2026274 AMAQI
19th Jan 2026365 AMAQI

9°C8/9°C

19th Jan 2026176 AMAQI
19th Jan 2026367 AMAQI
19th Jan 2026298 AMAQI
19th Jan 2026539 AMAQI
19th Jan 20263610 AMAQI
19th Jan 20264811 AMAQI
19th Jan 20265812 PMAQI
19th Jan 2026591 PMAQI
19th Jan 2026562 PMAQI
19th Jan 2026563 PMAQI
19th Jan 2026594 PMAQI
19th Jan 2026495 PMAQI
19th Jan 2026296 PMAQI
19th Jan 2026297 PMAQI
19th Jan 2026338 PMAQI
19th Jan 2026349 PMAQI
19th Jan 20264710 PMAQI
19th Jan 20265711 PMAQI
20th Jan 20265512 AMAQI
20th Jan 2026581 AMAQI
20th Jan 2026642 AMAQI
20th Jan 2026643 AMAQI
20th Jan 2026644 AMAQI
20th Jan 2026545 AMAQI

8°C6/10°C

20th Jan 2026716 AMAQI
20th Jan 2026627 AMAQI
20th Jan 2026628 AMAQI
20th Jan 2026549 AMAQI
20th Jan 20267610 AMAQI
20th Jan 20263611 AMAQI
20th Jan 20261712 PMAQI
20th Jan 2026101 PMAQI
20th Jan 2026122 PMAQI
20th Jan 2026143 PMAQI
20th Jan 2026234 PMAQI
20th Jan 2026145 PMAQI
20th Jan 202686 PMAQI
20th Jan 2026147 PMAQI
20th Jan 202688 PMAQI
20th Jan 202689 PMAQI
20th Jan 2026810 PMAQI
20th Jan 2026811 PMAQI
21st Jan 2026812 AMAQI
21st Jan 2026101 AMAQI
21st Jan 2026122 AMAQI
21st Jan 2026123 AMAQI
21st Jan 2026124 AMAQI
21st Jan 2026105 AMAQI

8°C4/11°C

21st Jan 202686 AMAQI
21st Jan 202687 AMAQI
21st Jan 202688 AMAQI
21st Jan 2026129 AMAQI
21st Jan 20261210 AMAQI
21st Jan 20261211 AMAQI
21st Jan 20261212 PMAQI
21st Jan 2026141 PMAQI
21st Jan 2026102 PMAQI
21st Jan 202683 PMAQI
21st Jan 202684 PMAQI
21st Jan 2026125 PMAQI
21st Jan 2026126 PMAQI
21st Jan 2026177 PMAQI
21st Jan 2026108 PMAQI
21st Jan 202689 PMAQI
21st Jan 20261210 PMAQI
21st Jan 20262111 PMAQI
22nd Jan 20261912 AMAQI
22nd Jan 2026171 AMAQI
22nd Jan 2026142 AMAQI
22nd Jan 2026143 AMAQI
22nd Jan 2026214 AMAQI
22nd Jan 2026175 AMAQI

3°C2/5°C

22nd Jan 2026126 AMAQI
22nd Jan 2026177 AMAQI
22nd Jan 2026128 AMAQI
22nd Jan 2026339 AMAQI
22nd Jan 20262210 AMAQI
22nd Jan 20262511 AMAQI
22nd Jan 20262712 PMAQI
22nd Jan 2026271 PMAQI
22nd Jan 2026322 PMAQI
22nd Jan 2026643 PMAQI
22nd Jan 2026174 PMAQI
22nd Jan 2026295 PMAQI
22nd Jan 2026216 PMAQI
22nd Jan 202687 PMAQI
22nd Jan 2026248 PMAQI
22nd Jan 2026449 PMAQI
22nd Jan 20262610 PMAQI
22nd Jan 20262311 PMAQI
23rd Jan 2026812 AMAQI
23rd Jan 202681 AMAQI
23rd Jan 2026342 AMAQI
23rd Jan 2026243 AMAQI
23rd Jan 2026254 AMAQI
23rd Jan 2026425 AMAQI

4°C2/5°C

23rd Jan 2026246 AMAQI
23rd Jan 2026217 AMAQI
23rd Jan 2026348 AMAQI
23rd Jan 2026519 AMAQI
23rd Jan 20265610 AMAQI
23rd Jan 20264511 AMAQI
23rd Jan 20263412 PMAQI
23rd Jan 2026321 PMAQI
23rd Jan 2026122 PMAQI
23rd Jan 2026363 PMAQI
23rd Jan 2026444 PMAQI
23rd Jan 2026465 PMAQI
23rd Jan 2026556 PMAQI
23rd Jan 2026627 PMAQI
23rd Jan 2026468 PMAQI
23rd Jan 2026409 PMAQI
23rd Jan 20264810 PMAQI
23rd Jan 20264311 PMAQI
24th Jan 20263312 AMAQI
24th Jan 2026481 AMAQI
24th Jan 2026492 AMAQI
24th Jan 2026443 AMAQI
24th Jan 2026604 AMAQI
24th Jan 2026625 AMAQI

4°C2/7°C

24th Jan 2026286 AMAQI
24th Jan 2026197 AMAQI
24th Jan 2026198 AMAQI
24th Jan 2026449 AMAQI
24th Jan 20265510 AMAQI
24th Jan 20264211 AMAQI
24th Jan 20261212 PMAQI
24th Jan 2026221 PMAQI
24th Jan 2026322 PMAQI
24th Jan 2026583 PMAQI
24th Jan 2026174 PMAQI
24th Jan 2026265 PMAQI
24th Jan 2026226 PMAQI
24th Jan 2026367 PMAQI
24th Jan 2026388 PMAQI
24th Jan 2026309 PMAQI
24th Jan 20265010 PMAQI
24th Jan 20264011 PMAQI
25th Jan 20263612 AMAQI
25th Jan 2026481 AMAQI
25th Jan 2026802 AMAQI
25th Jan 2026553 AMAQI
25th Jan 2026364 AMAQI
25th Jan 2026645 AMAQI

7°C4/10°C

25th Jan 2026326 AMAQI
25th Jan 2026257 AMAQI
25th Jan 2026218 AMAQI
25th Jan 2026449 AMAQI
25th Jan 20266010 AMAQI
25th Jan 20264611 AMAQI
25th Jan 20265812 PMAQI
25th Jan 2026601 PMAQI
25th Jan 2026702 PMAQI
25th Jan 2026673 PMAQI
25th Jan 2026344 PMAQI
25th Jan 2026345 PMAQI
25th Jan 2026126 PMAQI
25th Jan 2026247 PMAQI
25th Jan 2026518 PMAQI
25th Jan 2026389 PMAQI
25th Jan 20263210 PMAQI
25th Jan 20262711 PMAQI
26th Jan 20262512 AMAQI
26th Jan 2026221 AMAQI
26th Jan 2026322 AMAQI
26th Jan 2026243 AMAQI
26th Jan 2026264 AMAQI
26th Jan 2026525 AMAQI

5°C3/7°C

26th Jan 2026186 AMAQI
26th Jan 202687 AMAQI
26th Jan 2026188 AMAQI
26th Jan 2026269 AMAQI
26th Jan 2026811 AMAQI
26th Jan 20264012 PMAQI
26th Jan 2026381 PMAQI
26th Jan 2026172 PMAQI
26th Jan 2026173 PMAQI
26th Jan 2026194 PMAQI
26th Jan 2026235 PMAQI
26th Jan 2026176 PMAQI
26th Jan 2026277 PMAQI
26th Jan 2026218 PMAQI
26th Jan 2026279 PMAQI
26th Jan 20264810 PMAQI
26th Jan 20264011 PMAQI
27th Jan 20264012 AMAQI
27th Jan 2026501 AMAQI
27th Jan 2026472 AMAQI
27th Jan 2026503 AMAQI
27th Jan 2026384 AMAQI
27th Jan 2026365 AMAQI

5°C2/7°C

27th Jan 2026366 AMAQI
27th Jan 2026407 AMAQI
27th Jan 2026348 AMAQI
27th Jan 2026459 AMAQI
27th Jan 20264610 AMAQI
27th Jan 20264211 AMAQI
27th Jan 20263012 PMAQI
27th Jan 2026421 PMAQI
27th Jan 2026422 PMAQI
27th Jan 2026383 PMAQI
27th Jan 2026344 PMAQI
27th Jan 2026325 PMAQI
27th Jan 2026346 PMAQI
27th Jan 2026337 PMAQI
27th Jan 2026378 PMAQI
27th Jan 2026679 PMAQI
27th Jan 20267110 PMAQI
27th Jan 20266011 PMAQI
28th Jan 20265912 AMAQI
28th Jan 2026581 AMAQI
28th Jan 2026622 AMAQI
28th Jan 2026603 AMAQI
28th Jan 2026564 AMAQI
28th Jan 2026485 AMAQI

6°C3/8°C

28th Jan 2026426 AMAQI
28th Jan 2026447 AMAQI
28th Jan 2026388 AMAQI
28th Jan 2026449 AMAQI
28th Jan 20264010 AMAQI
28th Jan 20263311 AMAQI
28th Jan 20262512 PMAQI
28th Jan 2026161 PMAQI
28th Jan 202682 PMAQI
28th Jan 2026123 PMAQI
28th Jan 2026174 PMAQI
28th Jan 2026125 PMAQI
28th Jan 202686 PMAQI
28th Jan 202687 PMAQI
28th Jan 202688 PMAQI
28th Jan 2026109 PMAQI
28th Jan 20261010 PMAQI
29th Jan 20261412 AMAQI
29th Jan 2026171 AMAQI
29th Jan 2026252 AMAQI
29th Jan 2026193 AMAQI
29th Jan 2026214 AMAQI
29th Jan 2026255 AMAQI

6°C4/8°C

29th Jan 2026276 AMAQI
29th Jan 2026237 AMAQI
29th Jan 2026128 AMAQI
29th Jan 2026239 AMAQI
29th Jan 20262910 AMAQI
29th Jan 20262111 AMAQI
29th Jan 20261212 PMAQI
29th Jan 2026171 PMAQI
29th Jan 2026232 PMAQI
29th Jan 2026183 PMAQI
29th Jan 2026144 PMAQI
29th Jan 2026195 PMAQI
29th Jan 2026126 PMAQI
29th Jan 2026177 PMAQI
29th Jan 2026218 PMAQI
29th Jan 2026179 PMAQI
29th Jan 20262510 PMAQI
29th Jan 2026811 PMAQI
30th Jan 2026812 AMAQI
30th Jan 2026431 AMAQI
30th Jan 2026522 AMAQI
30th Jan 2026423 AMAQI
30th Jan 2026654 AMAQI
30th Jan 2026885 AMAQI

4°C2/7°C

30th Jan 2026456 AMAQI
30th Jan 2026387 AMAQI
30th Jan 2026518 AMAQI
30th Jan 2026609 AMAQI
30th Jan 20266010 AMAQI
30th Jan 20263811 AMAQI
30th Jan 2026812 PMAQI
30th Jan 2026381 PMAQI
30th Jan 2026352 PMAQI
30th Jan 2026203 PMAQI
30th Jan 2026244 PMAQI
30th Jan 2026275 PMAQI
30th Jan 2026186 PMAQI
30th Jan 2026197 PMAQI
30th Jan 2026148 PMAQI
30th Jan 202689 PMAQI
30th Jan 20261610 PMAQI
30th Jan 20263711 PMAQI
31st Jan 20261912 AMAQI
31st Jan 2026361 AMAQI
31st Jan 2026382 AMAQI
31st Jan 2026363 AMAQI
31st Jan 2026404 AMAQI
31st Jan 2026445 AMAQI

5°C3/7°C

31st Jan 2026506 AMAQI
31st Jan 2026407 AMAQI
31st Jan 2026368 AMAQI
31st Jan 2026729 AMAQI
31st Jan 20268210 AMAQI
31st Jan 20264011 AMAQI
31st Jan 20263012 PMAQI
31st Jan 202681 PMAQI
31st Jan 2026392 PMAQI
31st Jan 2026283 PMAQI
31st Jan 2026464 PMAQI
31st Jan 2026265 PMAQI
31st Jan 2026246 PMAQI
31st Jan 2026528 PMAQI
31st Jan 2026369 PMAQI
31st Jan 20264210 PMAQI
31st Jan 20264211 PMAQI
1st Feb 20263312 AMAQI
1st Feb 2026291 AMAQI
1st Feb 2026322 AMAQI
1st Feb 2026343 AMAQI
1st Feb 2026464 AMAQI
1st Feb 2026735 AMAQI

5°C3/7°C

1st Feb 2026416 AMAQI
1st Feb 2026567 AMAQI
1st Feb 2026388 AMAQI
1st Feb 2026679 AMAQI
1st Feb 20268210 AMAQI
1st Feb 20265411 AMAQI
1st Feb 20262912 PMAQI
1st Feb 2026401 PMAQI
1st Feb 2026262 PMAQI
1st Feb 2026383 PMAQI
1st Feb 2026464 PMAQI
1st Feb 2026295 PMAQI
1st Feb 2026146 PMAQI
1st Feb 2026207 PMAQI
1st Feb 2026248 PMAQI
1st Feb 2026299 PMAQI
1st Feb 20264210 PMAQI
1st Feb 20263911 PMAQI
2nd Feb 20264212 AMAQI
2nd Feb 2026421 AMAQI
2nd Feb 2026442 AMAQI
2nd Feb 2026513 AMAQI
2nd Feb 2026464 AMAQI
2nd Feb 2026485 AMAQI

7°C5/8°C

2nd Feb 2026316 AMAQI
2nd Feb 2026467 AMAQI
2nd Feb 2026408 AMAQI
2nd Feb 2026619 AMAQI
2nd Feb 20263310 AMAQI
2nd Feb 20264611 AMAQI
2nd Feb 20264212 PMAQI
2nd Feb 2026291 PMAQI
2nd Feb 2026312 PMAQI
2nd Feb 2026273 PMAQI
2nd Feb 2026144 PMAQI
2nd Feb 2026255 PMAQI
2nd Feb 2026236 PMAQI
2nd Feb 2026197 PMAQI
2nd Feb 2026318 PMAQI
2nd Feb 2026369 PMAQI
2nd Feb 20264010 PMAQI
2nd Feb 20263811 PMAQI
3rd Feb 20263312 AMAQI
3rd Feb 2026141 AMAQI
3rd Feb 2026122 AMAQI
3rd Feb 2026143 AMAQI
3rd Feb 2026174 AMAQI
3rd Feb 2026145 AMAQI

7°C5/9°C

3rd Feb 202686 AMAQI
3rd Feb 2026147 AMAQI
3rd Feb 2026178 AMAQI
3rd Feb 2026339 AMAQI
3rd Feb 20263310 AMAQI
3rd Feb 20263411 AMAQI
3rd Feb 20262212 PMAQI
3rd Feb 2026121 PMAQI
3rd Feb 202682 PMAQI
3rd Feb 2026123 PMAQI
3rd Feb 202685 PMAQI
3rd Feb 2026126 PMAQI
3rd Feb 202687 PMAQI
3rd Feb 2026108 PMAQI
3rd Feb 2026129 PMAQI
3rd Feb 20261910 PMAQI
3rd Feb 20262511 PMAQI
4th Feb 20262512 AMAQI
4th Feb 2026211 AMAQI
4th Feb 2026292 AMAQI
4th Feb 2026213 AMAQI
4th Feb 2026404 AMAQI
4th Feb 2026295 AMAQI

7°C4/9°C

4th Feb 2026386 AMAQI
4th Feb 2026407 AMAQI
4th Feb 2026488 AMAQI
4th Feb 2026489 AMAQI
4th Feb 20265510 AMAQI
4th Feb 20265111 AMAQI
4th Feb 20263312 PMAQI
4th Feb 2026271 PMAQI
4th Feb 2026212 PMAQI
4th Feb 2026383 PMAQI
4th Feb 2026364 PMAQI
4th Feb 2026385 PMAQI
4th Feb 2026346 PMAQI
4th Feb 2026387 PMAQI
4th Feb 2026388 PMAQI
4th Feb 2026529 PMAQI
4th Feb 20265210 PMAQI
4th Feb 20264811 PMAQI
5th Feb 20263812 AMAQI
5th Feb 2026511 AMAQI
5th Feb 2026442 AMAQI
5th Feb 2026513 AMAQI
5th Feb 2026554 AMAQI
5th Feb 2026545 AMAQI

8°C6/9°C

5th Feb 2026526 AMAQI
5th Feb 2026557 AMAQI
5th Feb 2026578 AMAQI
5th Feb 2026629 AMAQI
5th Feb 20266610 AMAQI
5th Feb 20266811 AMAQI
5th Feb 20267412 PMAQI
5th Feb 2026761 PMAQI
5th Feb 2026692 PMAQI
5th Feb 2026843 PMAQI
5th Feb 2026794 PMAQI
5th Feb 2026685 PMAQI
5th Feb 2026686 PMAQI
5th Feb 2026787 PMAQI
5th Feb 2026788 PMAQI
5th Feb 2026839 PMAQI
5th Feb 20267510 PMAQI
5th Feb 20265811 PMAQI
6th Feb 20265412 AMAQI
6th Feb 2026331 AMAQI
6th Feb 2026502 AMAQI
6th Feb 2026503 AMAQI
6th Feb 2026294 AMAQI
6th Feb 2026445 AMAQI

9°C7/11°C

6th Feb 2026546 AMAQI
6th Feb 2026537 AMAQI
6th Feb 2026588 AMAQI
6th Feb 2026699 AMAQI
6th Feb 20268210 AMAQI
6th Feb 20269211 AMAQI
6th Feb 2026361 PMAQI
6th Feb 2026442 PMAQI
6th Feb 2026593 PMAQI
6th Feb 2026584 PMAQI
6th Feb 2026545 PMAQI
6th Feb 2026466 PMAQI
6th Feb 2026707 PMAQI
6th Feb 2026748 PMAQI
6th Feb 2026709 PMAQI
6th Feb 20262910 PMAQI
6th Feb 20263811 PMAQI
7th Feb 20263312 AMAQI
7th Feb 2026211 AMAQI
7th Feb 2026192 AMAQI
7th Feb 2026143 AMAQI
7th Feb 202684 AMAQI
7th Feb 2026125 AMAQI

10°C8/13°C

7th Feb 2026146 AMAQI
7th Feb 2026147 AMAQI
7th Feb 2026108 AMAQI
7th Feb 202689 AMAQI
7th Feb 20261210 AMAQI
7th Feb 20261011 AMAQI
7th Feb 20261412 PMAQI
7th Feb 2026101 PMAQI
7th Feb 2026172 PMAQI
7th Feb 2026233 PMAQI
7th Feb 2026214 PMAQI
7th Feb 2026125 PMAQI
7th Feb 202686 PMAQI
7th Feb 202687 PMAQI
7th Feb 2026178 PMAQI
7th Feb 202689 PMAQI
7th Feb 20261410 PMAQI
7th Feb 20261711 PMAQI
8th Feb 20261412 AMAQI
8th Feb 2026141 AMAQI
8th Feb 2026102 AMAQI
8th Feb 2026103 AMAQI
8th Feb 2026124 AMAQI
8th Feb 202685 AMAQI

4°C2/6°C

8th Feb 202686 AMAQI
8th Feb 202688 AMAQI
8th Feb 2026129 AMAQI
8th Feb 20261210 AMAQI
8th Feb 20261411 AMAQI
8th Feb 20261212 PMAQI
8th Feb 2026121 PMAQI
8th Feb 2026192 PMAQI
8th Feb 2026193 PMAQI
8th Feb 2026274 PMAQI
8th Feb 2026315 PMAQI
8th Feb 2026206 PMAQI
8th Feb 2026107 PMAQI
8th Feb 2026108 PMAQI
8th Feb 2026179 PMAQI
8th Feb 20261210 PMAQI
8th Feb 20261211 PMAQI
9th Feb 20261212 AMAQI
9th Feb 2026191 AMAQI
9th Feb 2026242 AMAQI
9th Feb 202683 AMAQI
9th Feb 2026534 AMAQI
9th Feb 2026445 AMAQI

2°C0/2°C

9th Feb 2026276 AMAQI
9th Feb 2026467 AMAQI
9th Feb 2026518 AMAQI
9th Feb 2026589 AMAQI
9th Feb 20267410 AMAQI
9th Feb 20262911 AMAQI
9th Feb 20262312 PMAQI
9th Feb 2026421 PMAQI
9th Feb 2026462 PMAQI
9th Feb 2026483 PMAQI
9th Feb 2026464 PMAQI
9th Feb 2026335 PMAQI
9th Feb 2026216 PMAQI
9th Feb 2026247 PMAQI
9th Feb 2026348 PMAQI
9th Feb 2026179 PMAQI
9th Feb 20261210 PMAQI
9th Feb 20262611 PMAQI
10th Feb 20265112 AMAQI
10th Feb 2026531 AMAQI
10th Feb 2026362 AMAQI
10th Feb 2026343 AMAQI
10th Feb 2026524 AMAQI
10th Feb 2026605 AMAQI

3°C0/7°C

10th Feb 2026306 AMAQI
10th Feb 2026467 AMAQI
10th Feb 2026448 AMAQI
10th Feb 2026509 AMAQI
10th Feb 20266010 AMAQI
10th Feb 20264611 AMAQI
10th Feb 20264512 PMAQI
10th Feb 2026471 PMAQI
10th Feb 2026502 PMAQI
10th Feb 2026103 PMAQI
10th Feb 2026144 PMAQI
10th Feb 2026175 PMAQI
10th Feb 202686 PMAQI
10th Feb 2026127 PMAQI
10th Feb 2026238 PMAQI
10th Feb 2026219 PMAQI
10th Feb 20262110 PMAQI
10th Feb 20261711 PMAQI
11th Feb 20266212 AMAQI
11th Feb 2026211 AMAQI
11th Feb 2026172 AMAQI
11th Feb 2026213 AMAQI
11th Feb 2026214 AMAQI
11th Feb 2026215 AMAQI

7°C4/12°C

11th Feb 2026276 AMAQI
11th Feb 2026257 AMAQI
11th Feb 2026238 AMAQI
11th Feb 2026549 AMAQI
11th Feb 20267510 AMAQI
11th Feb 20264611 AMAQI
11th Feb 20262312 PMAQI
11th Feb 2026291 PMAQI
11th Feb 2026462 PMAQI
11th Feb 2026603 PMAQI
11th Feb 2026624 PMAQI
11th Feb 2026605 PMAQI
11th Feb 2026606 PMAQI
11th Feb 2026627 PMAQI
11th Feb 2026558 PMAQI
11th Feb 2026609 PMAQI
11th Feb 20265410 PMAQI
11th Feb 20265811 PMAQI
12th Feb 20264012 AMAQI
12th Feb 2026531 AMAQI
12th Feb 2026522 AMAQI
12th Feb 2026453 AMAQI
12th Feb 2026344 AMAQI
12th Feb 2026175 AMAQI

9°C7/12°C

12th Feb 2026126 AMAQI
12th Feb 2026217 AMAQI
12th Feb 2026368 AMAQI
12th Feb 2026389 AMAQI
12th Feb 20264010 AMAQI
12th Feb 20263211 AMAQI
12th Feb 20262512 PMAQI
12th Feb 2026271 PMAQI
12th Feb 2026422 PMAQI
12th Feb 2026543 PMAQI
12th Feb 2026294 PMAQI
12th Feb 2026315 PMAQI
12th Feb 2026316 PMAQI
12th Feb 2026297 PMAQI
12th Feb 2026348 PMAQI
12th Feb 2026349 PMAQI
12th Feb 20263810 PMAQI
12th Feb 20264611 PMAQI
13th Feb 20264612 AMAQI
13th Feb 2026361 AMAQI
13th Feb 2026312 AMAQI
13th Feb 2026333 AMAQI
13th Feb 2026334 AMAQI
13th Feb 2026335 AMAQI

6°C6/7°C

13th Feb 2026366 AMAQI
13th Feb 2026427 AMAQI
13th Feb 2026368 AMAQI
13th Feb 2026469 AMAQI
13th Feb 20265510 AMAQI
13th Feb 20264211 AMAQI
13th Feb 20264212 PMAQI
13th Feb 2026561 PMAQI
13th Feb 2026562 PMAQI
13th Feb 2026593 PMAQI
13th Feb 2026314 PMAQI
13th Feb 2026585 PMAQI
13th Feb 2026446 PMAQI
13th Feb 2026407 PMAQI
13th Feb 2026438 PMAQI
13th Feb 2026259 PMAQI
13th Feb 20264210 PMAQI
13th Feb 20265211 PMAQI
14th Feb 20265012 AMAQI
14th Feb 2026581 AMAQI
14th Feb 2026513 AMAQI
14th Feb 2026744 AMAQI
14th Feb 2026725 AMAQI

7°C6/9°C

14th Feb 2026586 AMAQI
14th Feb 2026507 AMAQI
14th Feb 2026648 AMAQI
14th Feb 2026589 AMAQI
14th Feb 20267810 AMAQI
14th Feb 20265811 AMAQI
14th Feb 20265212 PMAQI
14th Feb 2026521 PMAQI
14th Feb 2026782 PMAQI
14th Feb 2026693 PMAQI
14th Feb 2026684 PMAQI
14th Feb 2026585 PMAQI
14th Feb 2026596 PMAQI
14th Feb 2026487 PMAQI
14th Feb 2026588 PMAQI
14th Feb 2026629 PMAQI
14th Feb 20264810 PMAQI
14th Feb 20263811 PMAQI
15th Feb 20263812 AMAQI
15th Feb 2026381 AMAQI
15th Feb 2026362 AMAQI
15th Feb 2026443 AMAQI
15th Feb 2026404 AMAQI
15th Feb 2026425 AMAQI

10°C7/14°C

15th Feb 2026426 AMAQI
6 AM
15th Feb 2026407 AMAQI
15th Feb 2026578 AMAQI
15th Feb 2026729 AMAQI
15th Feb 20269610 AMAQI
15th Feb 20267811 AMAQI
11 AM
15th Feb 20269212 PMAQI
15th Feb 2026741 PMAQI
15th Feb 2026692 PMAQI
15th Feb 2026673 PMAQI
15th Feb 2026514 PMAQI
15th Feb 2026495 PMAQI
5 PM
15th Feb 2026466 PMAQI
15th Feb 2026387 PMAQI
15th Feb 2026428 PMAQI
15th Feb 2026369 PMAQI
15th Feb 20263810 PMAQI
15th Feb 20264211 PMAQI
11 PM
5 AM

13°C11/15°C

Day time
Avg. Highest Time
10 AM

52AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
6 AM

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. 52), while the lowest AQI was between 6 AM to 6 AM (Avg. 32).
Night time
Avg. Highest Time
5 AM

41AQI

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

29AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 AM (Avg. 41), while the lowest AQI was between 6 PM to 6 PM (Avg. 29).

2026 Days Vs Air Quality

Goichuonishi, Ichihara, Chiba, Japan

2026

91%

42

9%

4

Total number of days with different AQI categories in last 47 days in 2026 (318 days remaining)

Good
42 Days
Moderate
4 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 91%

Health Risk Level:

Very Low

In 2026, 91% of 47 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

Goichuonishi, Ichihara, Chiba, 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
25AQI (US)
2nd January 2026
25AQI (US)
3rd January 2026
20AQI (US)
4th January 2026
32AQI (US)
5th January 2026
41AQI (US)
6th January 2026
18AQI (US)
7th January 2026
29AQI (US)
8th January 2026
40AQI (US)
9th January 2026
19AQI (US)
10th January 2026
36AQI (US)
11th January 2026
35AQI (US)
12th January 2026
24AQI (US)
13th January 2026
39AQI (US)
14th January 2026
18AQI (US)
15th January 2026
36AQI (US)
16th January 2026
48AQI (US)
17th January 2026
50AQI (US)
18th January 2026
26AQI (US)
19th January 2026
38AQI (US)
20th January 2026
36AQI (US)
21st January 2026
11AQI (US)
22nd January 2026
24AQI (US)
23rd January 2026
36AQI (US)
24th January 2026
37AQI (US)
25th January 2026
44AQI (US)
26th January 2026
26AQI (US)
27th January 2026
43AQI (US)
28th January 2026
31AQI (US)
29th January 2026
19AQI (US)
30th January 2026
36AQI (US)
31st January 2026
39AQI (US)
1st February 2026
40AQI (US)
2nd February 2026
37AQI (US)
3rd February 2026
17AQI (US)
4th February 2026
38AQI (US)
5th February 2026
64AQI (US)
6th February 2026
54AQI (US)
7th February 2026
14AQI (US)
8th February 2026
14AQI (US)
9th February 2026
34AQI (US)
10th February 2026
35AQI (US)
11th February 2026
43AQI (US)
12th February 2026
35AQI (US)
13th February 2026
42AQI (US)
14th February 2026
59AQI (US)
15th February 2026
53AQI (US)
16th February 2026
17th February 2026
18th February 2026
19th February 2026
20th February 2026
21st February 2026
22nd February 2026
23rd February 2026
24th February 2026
25th February 2026
26th February 2026
27th February 2026
28th February 2026
1st March 2026
2nd March 2026
3rd March 2026
4th March 2026
5th March 2026
6th March 2026
7th March 2026
8th March 2026
9th March 2026
10th March 2026
11th March 2026
12th March 2026
13th March 2026
14th March 2026
15th March 2026
16th March 2026
17th March 2026
18th March 2026
19th March 2026
20th March 2026
21st March 2026
22nd March 2026
23rd March 2026
24th March 2026
25th March 2026
26th March 2026
27th March 2026
28th March 2026
29th March 2026
30th March 2026
31st March 2026
1st April 2026
2nd April 2026
3rd April 2026
4th April 2026
5th April 2026
6th April 2026
7th April 2026
8th April 2026
9th April 2026
10th April 2026
11th April 2026
12th April 2026
13th April 2026
14th April 2026
15th April 2026
16th April 2026
17th April 2026
18th April 2026
19th April 2026
20th April 2026
21st April 2026
22nd April 2026
23rd April 2026
24th April 2026
25th April 2026
26th April 2026
27th April 2026
28th April 2026
29th April 2026
30th April 2026
1st May 2026
2nd May 2026
3rd May 2026
4th May 2026
5th May 2026
6th May 2026
7th May 2026
8th May 2026
9th May 2026
10th May 2026
11th May 2026
12th May 2026
13th May 2026
14th May 2026
15th May 2026
16th May 2026
17th May 2026
18th May 2026
19th May 2026
20th May 2026
21st May 2026
22nd May 2026
23rd May 2026
24th May 2026
25th May 2026
26th May 2026
27th May 2026
28th May 2026
29th May 2026
30th May 2026
31st May 2026
1st June 2026
2nd June 2026
3rd June 2026
4th June 2026
5th June 2026
6th June 2026
7th June 2026
8th June 2026
9th June 2026
10th June 2026
11th June 2026
12th June 2026
13th June 2026
14th June 2026
15th June 2026
16th June 2026
17th June 2026
18th June 2026
19th June 2026
20th June 2026
21st June 2026
22nd June 2026
23rd June 2026
24th June 2026
25th June 2026
26th June 2026
27th June 2026
28th June 2026
29th June 2026
30th June 2026
1st July 2026
2nd July 2026
3rd July 2026
4th July 2026
5th July 2026
6th July 2026
7th July 2026
8th July 2026
9th July 2026
10th July 2026
11th July 2026
12th July 2026
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
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

32AQI (US)

39AQI (US)

No. of days

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

202634AQI (US)

31
11
4
42
4

Highest AQI (US) recorded in

February

39AQI (US)

Lowest AQI (US) recorded in

January

32AQI (US)

202542AQI (US)

28
3
27
1
25
6
28
2
30
1
29
1
24
7
18
13
30
15
16
15
15
16
15
285
80

Highest AQI (US) recorded in

October

51AQI (US)

Lowest AQI (US) recorded in

May

34AQI (US)

202439AQI (US)

25
6
28
1
25
6
21
9
26
5
27
3
13
18
28
3
26
4
30
1
27
3
30
1
306
60

Highest AQI (US) recorded in

July

52AQI (US)

Lowest AQI (US) recorded in

August

32AQI (US)

202340AQI (US)

23
8
26
2
24
7
24
6
27
4
18
12
21
10
31
29
1
28
3
20
9
19
12
290
74

Highest AQI (US) recorded in

December

47AQI (US)

Lowest AQI (US) recorded in

August

27AQI (US)

202246AQI (US)

27
4
17
4
18
13
12
5
22
9
19
11
12
9
1
1
20
9
22
9
23
7
24
7
217
87
1

Highest AQI (US) recorded in

August

88AQI (US)

Lowest AQI (US) recorded in

January

41AQI (US)

202143AQI (US)

20
10
22
6
26
4
1
26
4
20
11
24
6
19
12
21
10
25
5
26
5
21
9
21
10
271
92
1

Highest AQI (US) recorded in

July

47AQI (US)

Lowest AQI (US) recorded in

April

38AQI (US)

202040AQI (US)

11
2
20
1
16
2
23
7
29
2
21
9
1
16
3
27
4
19
11
21
10
203
51
1

Highest AQI (US) recorded in

August

47AQI (US)

Lowest AQI (US) recorded in

May

34AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2022(Avg.)
46AQI (US)
Least Polluted Year Recorded
2026(Avg.)
34AQI (US)

Goichuonishi's annual 2026 AQI (US) (34) shows an average percentage change of -18.3% (improved AQI (US)) compared to previous years: 2020 (40), 2021 (43), 2022 (46), 2023 (40), 2024 (39), 2025 (42).