Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Atsuka, Ogawa, Saitama, 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

Atsuka, Ogawa, Saitama, Japan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
14th Feb 2026
68AQI
Lowest AQI recorded on
7th Feb 2026
11AQI

Same Day Analysis (18th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 31 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 17th Feb - 18th Feb 2026

Atsuka, Ogawa, Saitama, Japan

AQI
Day
Night
.

6 AM17th Feb 2026

5 PM

5 AM18th Feb 2026

Day time
Avg. Highest Time
5PM17th Feb

21AQI

Avg. Lowest Time
1PM17th Feb

8AQI

Night time
Avg. Highest Time
5AM18th Feb

36AQI

Avg. Lowest Time
1AM18th Feb

13AQI

In the last 24 hours,

Atsuka's AQI reached its highest point of 36 at 5 AM during the Night, while the lowest point, 8, was recorded at 1 PM during the Day between 17th Feb and 18th Feb 2026.

Day & Night AQI Trend : Jan - Feb 2026

Atsuka, Ogawa, Saitama, Japan

JanFeb
20th - 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 - 16th16th - 17th17th - 18th18th
Day
Night
20th Jan 2026426 AMAQI
20th Jan 2026277 AMAQI
20th Jan 2026258 AMAQI
20th Jan 2026169 AMAQI
20th Jan 20261310 AMAQI
20th Jan 20261411 AMAQI
20th Jan 20261212 PMAQI
20th Jan 2026121 PMAQI
20th Jan 2026172 PMAQI
20th Jan 2026173 PMAQI
20th Jan 2026174 PMAQI
20th Jan 2026195 PMAQI
20th Jan 2026146 PMAQI
20th Jan 2026277 PMAQI
20th Jan 2026338 PMAQI
20th Jan 2026319 PMAQI
20th Jan 20261810 PMAQI
20th Jan 20261411 PMAQI
21st Jan 20261412 AMAQI
21st Jan 202681 AMAQI
21st Jan 202682 AMAQI
21st Jan 2026103 AMAQI
21st Jan 2026124 AMAQI
21st Jan 2026125 AMAQI

4°C0/11°C

21st Jan 2026146 AMAQI
21st Jan 2026107 AMAQI
21st Jan 202688 AMAQI
21st Jan 202689 AMAQI
21st Jan 2026810 AMAQI
21st Jan 2026811 AMAQI
21st Jan 20261212 PMAQI
21st Jan 2026141 PMAQI
21st Jan 2026102 PMAQI
21st Jan 2026103 PMAQI
21st Jan 202684 PMAQI
21st Jan 2026105 PMAQI
21st Jan 2026126 PMAQI
21st Jan 2026107 PMAQI
21st Jan 2026148 PMAQI
21st Jan 2026179 PMAQI
21st Jan 20261910 PMAQI
21st Jan 20261711 PMAQI
22nd Jan 20261912 AMAQI
22nd Jan 2026211 AMAQI
22nd Jan 2026212 AMAQI
22nd Jan 2026213 AMAQI
22nd Jan 2026174 AMAQI
22nd Jan 2026215 AMAQI

1°C-1/5°C

22nd Jan 2026176 AMAQI
22nd Jan 2026217 AMAQI
22nd Jan 202688 AMAQI
22nd Jan 202689 AMAQI
22nd Jan 2026810 AMAQI
22nd Jan 20261211 AMAQI
22nd Jan 20261212 PMAQI
22nd Jan 2026121 PMAQI
22nd Jan 2026342 PMAQI
22nd Jan 2026653 PMAQI
22nd Jan 2026294 PMAQI
22nd Jan 2026205 PMAQI
22nd Jan 2026286 PMAQI
22nd Jan 2026347 PMAQI
22nd Jan 2026318 PMAQI
22nd Jan 2026429 PMAQI
22nd Jan 20262810 PMAQI
22nd Jan 20263211 PMAQI
23rd Jan 20261212 AMAQI
23rd Jan 2026261 AMAQI
23rd Jan 2026412 AMAQI
23rd Jan 2026263 AMAQI
23rd Jan 2026244 AMAQI
23rd Jan 2026465 AMAQI

1°C-1/4°C

23rd Jan 2026246 AMAQI
23rd Jan 2026127 AMAQI
23rd Jan 2026238 AMAQI
23rd Jan 2026559 AMAQI
23rd Jan 20265410 AMAQI
23rd Jan 20262411 AMAQI
23rd Jan 20263112 PMAQI
23rd Jan 2026301 PMAQI
23rd Jan 2026242 PMAQI
23rd Jan 2026383 PMAQI
23rd Jan 2026554 PMAQI
23rd Jan 2026625 PMAQI
23rd Jan 2026706 PMAQI
23rd Jan 2026827 PMAQI
23rd Jan 2026538 PMAQI
23rd Jan 2026369 PMAQI
23rd Jan 20265310 PMAQI
23rd Jan 20265011 PMAQI
24th Jan 20264212 AMAQI
24th Jan 2026511 AMAQI
24th Jan 2026512 AMAQI
24th Jan 2026483 AMAQI
24th Jan 2026624 AMAQI
24th Jan 2026585 AMAQI

1°C-2/5°C

24th Jan 2026266 AMAQI
24th Jan 2026127 AMAQI
24th Jan 2026148 AMAQI
24th Jan 2026389 AMAQI
24th Jan 20265010 AMAQI
24th Jan 20261711 AMAQI
24th Jan 20261712 PMAQI
24th Jan 2026261 PMAQI
24th Jan 2026362 PMAQI
24th Jan 2026533 PMAQI
24th Jan 2026224 PMAQI
24th Jan 2026235 PMAQI
24th Jan 2026276 PMAQI
24th Jan 2026457 PMAQI
24th Jan 2026388 PMAQI
24th Jan 2026329 PMAQI
24th Jan 20265110 PMAQI
24th Jan 20264211 PMAQI
25th Jan 20264012 AMAQI
25th Jan 2026521 AMAQI
25th Jan 2026802 AMAQI
25th Jan 2026543 AMAQI
25th Jan 2026384 AMAQI
25th Jan 2026645 AMAQI

2°C-1/8°C

25th Jan 2026346 AMAQI
25th Jan 2026207 AMAQI
25th Jan 2026218 AMAQI
25th Jan 2026489 AMAQI
25th Jan 20265610 AMAQI
25th Jan 20264811 AMAQI
25th Jan 20265512 PMAQI
25th Jan 2026561 PMAQI
25th Jan 2026712 PMAQI
25th Jan 2026693 PMAQI
25th Jan 2026294 PMAQI
25th Jan 2026425 PMAQI
25th Jan 2026106 PMAQI
25th Jan 2026147 PMAQI
25th Jan 2026328 PMAQI
25th Jan 2026259 PMAQI
25th Jan 20262710 PMAQI
25th Jan 20262711 PMAQI
26th Jan 20262812 AMAQI
26th Jan 2026301 AMAQI
26th Jan 2026352 AMAQI
26th Jan 2026293 AMAQI
26th Jan 2026304 AMAQI
26th Jan 2026515 AMAQI

2°C-1/5°C

26th Jan 2026206 AMAQI
26th Jan 202687 AMAQI
26th Jan 2026218 AMAQI
26th Jan 2026299 AMAQI
26th Jan 20262410 AMAQI
26th Jan 2026811 AMAQI
26th Jan 20262412 PMAQI
26th Jan 2026321 PMAQI
26th Jan 2026302 PMAQI
26th Jan 2026333 PMAQI
26th Jan 2026144 PMAQI
26th Jan 2026205 PMAQI
26th Jan 2026286 PMAQI
26th Jan 2026367 PMAQI
26th Jan 2026308 PMAQI
26th Jan 2026349 PMAQI
26th Jan 20266510 PMAQI
26th Jan 20266211 PMAQI
27th Jan 20264212 AMAQI
27th Jan 2026441 AMAQI
27th Jan 2026602 AMAQI
27th Jan 2026673 AMAQI
27th Jan 2026314 AMAQI
27th Jan 2026515 AMAQI

2°C-2/6°C

27th Jan 2026366 AMAQI
27th Jan 2026627 AMAQI
27th Jan 2026568 AMAQI
27th Jan 2026499 AMAQI
27th Jan 20266410 AMAQI
27th Jan 20264411 AMAQI
27th Jan 20263012 PMAQI
27th Jan 2026301 PMAQI
27th Jan 2026422 PMAQI
27th Jan 2026423 PMAQI
27th Jan 2026464 PMAQI
27th Jan 2026405 PMAQI
27th Jan 2026306 PMAQI
27th Jan 2026247 PMAQI
27th Jan 2026278 PMAQI
27th Jan 2026349 PMAQI
27th Jan 20263810 PMAQI
27th Jan 20263211 PMAQI
28th Jan 20263112 AMAQI
28th Jan 2026381 AMAQI
28th Jan 2026422 AMAQI
28th Jan 2026403 AMAQI
28th Jan 2026214 AMAQI
28th Jan 2026365 AMAQI

4°C0/8°C

28th Jan 2026346 AMAQI
28th Jan 2026237 AMAQI
28th Jan 2026238 AMAQI
28th Jan 2026349 AMAQI
28th Jan 20264210 AMAQI
28th Jan 20262511 AMAQI
28th Jan 20263512 PMAQI
28th Jan 202681 PMAQI
28th Jan 2026342 PMAQI
28th Jan 2026223 PMAQI
28th Jan 2026274 PMAQI
28th Jan 2026225 PMAQI
28th Jan 2026146 PMAQI
28th Jan 2026147 PMAQI
28th Jan 2026208 PMAQI
28th Jan 2026239 PMAQI
28th Jan 20261610 PMAQI
28th Jan 2026811 PMAQI
29th Jan 2026812 AMAQI
29th Jan 2026201 AMAQI
29th Jan 2026422 AMAQI
29th Jan 2026343 AMAQI
29th Jan 2026324 AMAQI
29th Jan 2026165 AMAQI

3°C0/7°C

29th Jan 2026296 AMAQI
29th Jan 2026327 AMAQI
29th Jan 2026248 AMAQI
29th Jan 2026269 AMAQI
29th Jan 20263010 AMAQI
29th Jan 20262811 AMAQI
29th Jan 2026812 PMAQI
29th Jan 2026251 PMAQI
29th Jan 2026282 PMAQI
29th Jan 202683 PMAQI
29th Jan 2026174 PMAQI
29th Jan 2026265 PMAQI
29th Jan 2026246 PMAQI
29th Jan 2026307 PMAQI
29th Jan 2026358 PMAQI
29th Jan 2026279 PMAQI
29th Jan 20262810 PMAQI
29th Jan 20262811 PMAQI
30th Jan 20263612 AMAQI
30th Jan 2026341 AMAQI
30th Jan 2026682 AMAQI
30th Jan 2026523 AMAQI
30th Jan 2026624 AMAQI
30th Jan 2026835 AMAQI

3°C-1/7°C

30th Jan 2026426 AMAQI
30th Jan 2026337 AMAQI
30th Jan 2026518 AMAQI
30th Jan 2026569 AMAQI
30th Jan 20265610 AMAQI
30th Jan 20264811 AMAQI
30th Jan 20262212 PMAQI
30th Jan 2026261 PMAQI
30th Jan 2026232 PMAQI
30th Jan 2026193 PMAQI
30th Jan 2026194 PMAQI
30th Jan 2026225 PMAQI
30th Jan 2026186 PMAQI
30th Jan 2026237 PMAQI
30th Jan 2026178 PMAQI
30th Jan 202689 PMAQI
30th Jan 20261010 PMAQI
30th Jan 20262811 PMAQI
31st Jan 20261412 AMAQI
31st Jan 2026301 AMAQI
31st Jan 2026482 AMAQI
31st Jan 2026483 AMAQI
31st Jan 2026424 AMAQI
31st Jan 2026445 AMAQI

2°C-1/6°C

31st Jan 2026526 AMAQI
31st Jan 2026477 AMAQI
31st Jan 2026428 AMAQI
31st Jan 2026669 AMAQI
31st Jan 20268810 AMAQI
31st Jan 20263711 AMAQI
31st Jan 20263812 PMAQI
31st Jan 202681 PMAQI
31st Jan 2026392 PMAQI
31st Jan 2026283 PMAQI
31st Jan 2026484 PMAQI
31st Jan 2026185 PMAQI
31st Jan 2026146 PMAQI
31st Jan 2026257 PMAQI
31st Jan 2026488 PMAQI
31st Jan 2026329 PMAQI
31st Jan 20262610 PMAQI
31st Jan 20262611 PMAQI
1st Feb 20261712 AMAQI
1st Feb 2026261 AMAQI
1st Feb 2026322 AMAQI
1st Feb 2026323 AMAQI
1st Feb 2026404 AMAQI
1st Feb 2026745 AMAQI

2°C-1/7°C

1st Feb 2026446 AMAQI
1st Feb 2026547 AMAQI
1st Feb 2026358 AMAQI
1st Feb 2026669 AMAQI
1st Feb 20268410 AMAQI
1st Feb 20264811 AMAQI
1st Feb 20262812 PMAQI
1st Feb 2026301 PMAQI
1st Feb 202682 PMAQI
1st Feb 2026283 PMAQI
1st Feb 2026184 PMAQI
1st Feb 2026285 PMAQI
1st Feb 2026306 PMAQI
1st Feb 2026367 PMAQI
1st Feb 2026268 PMAQI
1st Feb 2026339 PMAQI
1st Feb 20263410 PMAQI
1st Feb 20263611 PMAQI
2nd Feb 20264412 AMAQI
2nd Feb 2026421 AMAQI
2nd Feb 2026252 AMAQI
2nd Feb 2026363 AMAQI
2nd Feb 2026804 AMAQI
2nd Feb 2026845 AMAQI

3°C-1/8°C

2nd Feb 2026566 AMAQI
2nd Feb 2026707 AMAQI
2nd Feb 2026338 AMAQI
2nd Feb 2026619 AMAQI
2nd Feb 20267210 AMAQI
2nd Feb 20266711 AMAQI
2nd Feb 20265012 PMAQI
2nd Feb 2026441 PMAQI
2nd Feb 2026262 PMAQI
2nd Feb 2026273 PMAQI
2nd Feb 2026504 PMAQI
2nd Feb 2026345 PMAQI
2nd Feb 2026466 PMAQI
2nd Feb 2026547 PMAQI
2nd Feb 2026428 PMAQI
2nd Feb 2026329 PMAQI
2nd Feb 20261710 PMAQI
2nd Feb 20262811 PMAQI
3rd Feb 20264012 AMAQI
3rd Feb 2026331 AMAQI
3rd Feb 2026222 AMAQI
3rd Feb 2026283 AMAQI
3rd Feb 2026454 AMAQI
3rd Feb 2026425 AMAQI

4°C0/8°C

3rd Feb 2026296 AMAQI
3rd Feb 2026307 AMAQI
3rd Feb 2026308 AMAQI
3rd Feb 2026309 AMAQI
3rd Feb 20266210 AMAQI
3rd Feb 20263211 AMAQI
3rd Feb 20264912 PMAQI
3rd Feb 202681 PMAQI
3rd Feb 2026342 PMAQI
3rd Feb 2026123 PMAQI
3rd Feb 2026124 PMAQI
3rd Feb 2026425 PMAQI
3rd Feb 2026276 PMAQI
3rd Feb 2026267 PMAQI
3rd Feb 2026278 PMAQI
3rd Feb 2026449 PMAQI
3rd Feb 20261710 PMAQI
3rd Feb 20262311 PMAQI
4th Feb 20263212 AMAQI
4th Feb 2026241 AMAQI
4th Feb 2026382 AMAQI
4th Feb 2026443 AMAQI
4th Feb 2026464 AMAQI
4th Feb 2026535 AMAQI

4°C0/9°C

4th Feb 2026396 AMAQI
4th Feb 2026407 AMAQI
4th Feb 2026458 AMAQI
4th Feb 2026509 AMAQI
4th Feb 20265310 AMAQI
4th Feb 20265011 AMAQI
4th Feb 20263412 PMAQI
4th Feb 2026171 PMAQI
4th Feb 2026232 PMAQI
4th Feb 2026543 PMAQI
4th Feb 2026314 PMAQI
4th Feb 2026245 PMAQI
4th Feb 2026326 PMAQI
4th Feb 2026387 PMAQI
4th Feb 2026308 PMAQI
4th Feb 2026299 PMAQI
4th Feb 20263310 PMAQI
4th Feb 20263511 PMAQI
5th Feb 20263312 AMAQI
5th Feb 2026501 AMAQI
5th Feb 2026502 AMAQI
5th Feb 2026483 AMAQI
5th Feb 2026294 AMAQI
5th Feb 2026465 AMAQI

4°C0/9°C

5th Feb 2026366 AMAQI
5th Feb 2026477 AMAQI
5th Feb 2026508 AMAQI
5th Feb 2026569 AMAQI
5th Feb 20265810 AMAQI
5th Feb 20266411 AMAQI
5th Feb 20264212 PMAQI
5th Feb 2026541 PMAQI
5th Feb 2026492 PMAQI
5th Feb 2026463 PMAQI
5th Feb 2026444 PMAQI
5th Feb 2026255 PMAQI
5th Feb 2026256 PMAQI
5th Feb 2026307 PMAQI
5th Feb 2026298 PMAQI
5th Feb 2026309 PMAQI
5th Feb 20264710 PMAQI
5th Feb 20266711 PMAQI
6th Feb 20265512 AMAQI
6th Feb 2026441 AMAQI
6th Feb 2026402 AMAQI
6th Feb 2026383 AMAQI
6th Feb 2026424 AMAQI
6th Feb 2026535 AMAQI

6°C2/11°C

6th Feb 2026546 AMAQI
6th Feb 2026497 AMAQI
6th Feb 2026528 AMAQI
6th Feb 2026529 AMAQI
6th Feb 20265110 AMAQI
6th Feb 20264811 AMAQI
6th Feb 20263812 PMAQI
6th Feb 2026511 PMAQI
6th Feb 2026252 PMAQI
6th Feb 2026403 PMAQI
6th Feb 2026514 PMAQI
6th Feb 2026425 PMAQI
6th Feb 2026236 PMAQI
6th Feb 2026197 PMAQI
6th Feb 2026148 PMAQI
6th Feb 2026129 PMAQI
6th Feb 20261210 PMAQI
6th Feb 20261011 PMAQI
7th Feb 2026612 AMAQI
7th Feb 202681 AMAQI
7th Feb 2026102 AMAQI
7th Feb 202683 AMAQI
7th Feb 202684 AMAQI
7th Feb 202685 AMAQI

7°C3/14°C

7th Feb 202686 AMAQI
7th Feb 202687 AMAQI
7th Feb 202688 AMAQI
7th Feb 202689 AMAQI
7th Feb 2026810 AMAQI
7th Feb 20261211 AMAQI
7th Feb 2026812 PMAQI
7th Feb 202681 PMAQI
7th Feb 202682 PMAQI
7th Feb 202683 PMAQI
7th Feb 202684 PMAQI
7th Feb 2026105 PMAQI
7th Feb 2026146 PMAQI
7th Feb 2026217 PMAQI
7th Feb 2026238 PMAQI
7th Feb 2026239 PMAQI
7th Feb 20262110 PMAQI
7th Feb 20262111 PMAQI
8th Feb 20262112 AMAQI
8th Feb 2026141 AMAQI
8th Feb 2026142 AMAQI
8th Feb 2026123 AMAQI
8th Feb 2026124 AMAQI
8th Feb 202665 AMAQI

2°C0/3°C

8th Feb 202686 AMAQI
8th Feb 202687 AMAQI
8th Feb 2026128 AMAQI
8th Feb 202689 AMAQI
8th Feb 2026810 AMAQI
8th Feb 2026811 AMAQI
8th Feb 2026812 PMAQI
8th Feb 2026411 PMAQI
8th Feb 2026302 PMAQI
8th Feb 2026373 PMAQI
8th Feb 2026264 PMAQI
8th Feb 2026185 PMAQI
8th Feb 202686 PMAQI
8th Feb 2026207 PMAQI
8th Feb 2026228 PMAQI
8th Feb 2026129 PMAQI
8th Feb 20261710 PMAQI
8th Feb 20262211 PMAQI
9th Feb 20262212 AMAQI
9th Feb 2026221 AMAQI
9th Feb 2026262 AMAQI
9th Feb 2026173 AMAQI
9th Feb 2026524 AMAQI
9th Feb 2026445 AMAQI

-1°C-4/2°C

9th Feb 2026266 AMAQI
9th Feb 2026407 AMAQI
9th Feb 2026438 AMAQI
9th Feb 2026569 AMAQI
9th Feb 20267610 AMAQI
9th Feb 20262711 AMAQI
9th Feb 20262012 PMAQI
9th Feb 2026391 PMAQI
9th Feb 2026462 PMAQI
9th Feb 2026453 PMAQI
9th Feb 2026444 PMAQI
9th Feb 2026445 PMAQI
9th Feb 2026306 PMAQI
9th Feb 2026417 PMAQI
9th Feb 2026368 PMAQI
9th Feb 2026369 PMAQI
9th Feb 20262310 PMAQI
9th Feb 20263111 PMAQI
10th Feb 20265112 AMAQI
10th Feb 2026561 AMAQI
10th Feb 2026682 AMAQI
10th Feb 2026583 AMAQI
10th Feb 2026744 AMAQI
10th Feb 2026785 AMAQI

-1°C-7/6°C

10th Feb 2026496 AMAQI
10th Feb 2026517 AMAQI
10th Feb 2026488 AMAQI
10th Feb 2026269 AMAQI
10th Feb 20262110 AMAQI
10th Feb 20261911 AMAQI
10th Feb 20261712 PMAQI
10th Feb 2026381 PMAQI
10th Feb 2026412 PMAQI
10th Feb 2026263 PMAQI
10th Feb 2026304 PMAQI
10th Feb 2026275 PMAQI
10th Feb 2026266 PMAQI
10th Feb 2026307 PMAQI
10th Feb 2026388 PMAQI
10th Feb 2026389 PMAQI
10th Feb 20263610 PMAQI
10th Feb 20263211 PMAQI
11th Feb 20266412 AMAQI
11th Feb 2026681 AMAQI
11th Feb 2026692 AMAQI
11th Feb 2026753 AMAQI
11th Feb 2026764 AMAQI
11th Feb 2026765 AMAQI

3°C-1/8°C

11th Feb 2026696 AMAQI
11th Feb 2026667 AMAQI
11th Feb 2026808 AMAQI
11th Feb 2026699 AMAQI
11th Feb 20268810 AMAQI
11th Feb 20264211 AMAQI
11th Feb 20263412 PMAQI
11th Feb 2026321 PMAQI
11th Feb 2026402 PMAQI
11th Feb 2026343 PMAQI
11th Feb 2026314 PMAQI
11th Feb 2026285 PMAQI
11th Feb 2026226 PMAQI
11th Feb 2026197 PMAQI
11th Feb 2026288 PMAQI
11th Feb 2026179 PMAQI
11th Feb 20262410 PMAQI
11th Feb 20261211 PMAQI
12th Feb 20261712 AMAQI
12th Feb 2026261 AMAQI
12th Feb 2026482 AMAQI
12th Feb 2026503 AMAQI
12th Feb 2026504 AMAQI
12th Feb 2026515 AMAQI

5°C1/9°C

12th Feb 2026256 AMAQI
12th Feb 2026407 AMAQI
12th Feb 2026348 AMAQI
12th Feb 2026629 AMAQI
12th Feb 20264410 AMAQI
12th Feb 20264411 AMAQI
12th Feb 20262212 PMAQI
12th Feb 2026321 PMAQI
12th Feb 2026342 PMAQI
12th Feb 2026233 PMAQI
12th Feb 2026364 PMAQI
12th Feb 2026255 PMAQI
12th Feb 2026206 PMAQI
12th Feb 2026207 PMAQI
12th Feb 2026348 PMAQI
12th Feb 2026369 PMAQI
12th Feb 20263810 PMAQI
12th Feb 20262711 PMAQI
13th Feb 20264612 AMAQI
13th Feb 2026561 AMAQI
13th Feb 2026562 AMAQI
13th Feb 2026563 AMAQI
13th Feb 2026584 AMAQI
13th Feb 2026545 AMAQI

5°C1/10°C

13th Feb 2026466 AMAQI
13th Feb 2026607 AMAQI
13th Feb 2026548 AMAQI
13th Feb 2026529 AMAQI
13th Feb 20265510 AMAQI
13th Feb 20263811 AMAQI
13th Feb 20263812 PMAQI
13th Feb 2026201 PMAQI
13th Feb 2026362 PMAQI
13th Feb 2026423 PMAQI
13th Feb 2026644 PMAQI
13th Feb 2026645 PMAQI
13th Feb 2026446 PMAQI
13th Feb 2026477 PMAQI
13th Feb 2026378 PMAQI
13th Feb 2026369 PMAQI
13th Feb 20265610 PMAQI
13th Feb 20266011 PMAQI
14th Feb 20266712 AMAQI
14th Feb 2026661 AMAQI
14th Feb 2026862 AMAQI
14th Feb 2026823 AMAQI
14th Feb 20261044 AMAQI
14th Feb 20261055 AMAQI

5°C1/10°C

14th Feb 2026806 AMAQI
14th Feb 2026627 AMAQI
14th Feb 2026768 AMAQI
14th Feb 2026719 AMAQI
14th Feb 20269210 AMAQI
14th Feb 20266411 AMAQI
14th Feb 20266412 PMAQI
14th Feb 2026581 PMAQI
14th Feb 2026602 PMAQI
14th Feb 2026393 PMAQI
14th Feb 2026404 PMAQI
14th Feb 2026565 PMAQI
14th Feb 2026606 PMAQI
14th Feb 2026447 PMAQI
14th Feb 2026568 PMAQI
14th Feb 2026629 PMAQI
14th Feb 20266510 PMAQI
14th Feb 20266211 PMAQI
15th Feb 20266212 AMAQI
15th Feb 2026601 AMAQI
15th Feb 2026602 AMAQI
15th Feb 2026563 AMAQI
15th Feb 2026554 AMAQI
15th Feb 2026555 AMAQI

7°C2/13°C

15th Feb 2026536 AMAQI
15th Feb 2026507 AMAQI
15th Feb 2026528 AMAQI
15th Feb 2026539 AMAQI
15th Feb 20264810 AMAQI
15th Feb 20264611 AMAQI
15th Feb 20265312 PMAQI
15th Feb 2026661 PMAQI
15th Feb 2026662 PMAQI
15th Feb 2026643 PMAQI
15th Feb 2026654 PMAQI
15th Feb 2026605 PMAQI
15th Feb 2026626 PMAQI
15th Feb 2026597 PMAQI
15th Feb 2026568 PMAQI
15th Feb 2026579 PMAQI
15th Feb 20266510 PMAQI
15th Feb 20266211 PMAQI
16th Feb 20265912 AMAQI
16th Feb 2026571 AMAQI
16th Feb 2026562 AMAQI
16th Feb 2026523 AMAQI
16th Feb 2026454 AMAQI
16th Feb 2026385 AMAQI

10°C5/16°C

16th Feb 2026316 AMAQI
16th Feb 2026237 AMAQI
16th Feb 2026238 AMAQI
16th Feb 2026259 AMAQI
16th Feb 20262310 AMAQI
16th Feb 20263211 AMAQI
16th Feb 20263612 PMAQI
16th Feb 2026361 PMAQI
16th Feb 2026382 PMAQI
16th Feb 2026423 PMAQI
16th Feb 2026494 PMAQI
16th Feb 2026485 PMAQI
16th Feb 2026476 PMAQI
16th Feb 2026387 PMAQI
16th Feb 2026298 PMAQI
16th Feb 2026239 PMAQI
16th Feb 20262110 PMAQI
16th Feb 20261911 PMAQI
17th Feb 20261712 AMAQI
17th Feb 2026141 AMAQI
17th Feb 2026122 AMAQI
17th Feb 2026143 AMAQI
17th Feb 2026174 AMAQI
17th Feb 2026145 AMAQI

8°C4/12°C

17th Feb 2026106 AMAQI
17th Feb 2026107 AMAQI
17th Feb 2026108 AMAQI
17th Feb 2026109 AMAQI
17th Feb 20261010 AMAQI
17th Feb 2026811 AMAQI
17th Feb 2026812 PMAQI
17th Feb 202681 PMAQI
17th Feb 2026122 PMAQI
17th Feb 2026173 PMAQI
17th Feb 2026194 PMAQI
17th Feb 2026215 PMAQI
17th Feb 2026236 PMAQI
17th Feb 2026237 PMAQI
17th Feb 2026218 PMAQI
17th Feb 2026219 PMAQI
17th Feb 20262110 PMAQI
17th Feb 20261611 PMAQI
18th Feb 20261412 AMAQI
18th Feb 2026131 AMAQI
18th Feb 2026252 AMAQI
18th Feb 2026273 AMAQI
18th Feb 2026344 AMAQI
18th Feb 2026365 AMAQI

5°C2/8°C

18th Feb 2026216 AMAQI
6 AM
18th Feb 2026237 AMAQI
18th Feb 2026318 AMAQI
18th Feb 2026449 AMAQI
18th Feb 20265610 AMAQI
18th Feb 20264611 AMAQI
11 AM
18th Feb 20262812 PMAQI
18th Feb 2026321 PMAQI
18th Feb 2026362 PMAQI
18th Feb 2026323 PMAQI
18th Feb 2026404 PMAQI
18th Feb 2026375 PMAQI
5 PM
18th Feb 2026346 PMAQI
18th Feb 2026287 PMAQI
18th Feb 2026278 PMAQI
18th Feb 2026319 PMAQI
18th Feb 20262810 PMAQI
18th Feb 20262811 PMAQI
11 PM
5 AM

6°C3/10°C

Day time
Avg. Highest Time
10 AM

47AQI

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

29AQI

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. 47), while the lowest AQI was between 12 PM to 12 PM (Avg. 29).
Night time
Avg. Highest Time
5 AM

48AQI

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. 48), while the lowest AQI was between 6 PM to 6 PM (Avg. 29).

2026 Days Vs Air Quality

Atsuka, Ogawa, Saitama, Japan

2026

94%

46

6%

3

Total number of days with different AQI categories in last 50 days in 2026 (315 days remaining)

Good
46 Days
Moderate
3 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 94%

Health Risk Level:

Very Low

In 2026, 94% of 50 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

Atsuka, Ogawa, Saitama, 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
20AQI (US)
2nd January 2026
16AQI (US)
3rd January 2026
12AQI (US)
4th January 2026
20AQI (US)
5th January 2026
27AQI (US)
6th January 2026
19AQI (US)
7th January 2026
22AQI (US)
8th January 2026
23AQI (US)
9th January 2026
15AQI (US)
10th January 2026
27AQI (US)
11th January 2026
37AQI (US)
12th January 2026
12AQI (US)
13th January 2026
23AQI (US)
14th January 2026
13AQI (US)
15th January 2026
30AQI (US)
16th January 2026
43AQI (US)
17th January 2026
45AQI (US)
18th January 2026
27AQI (US)
19th January 2026
52AQI (US)
20th January 2026
29AQI (US)
21st January 2026
11AQI (US)
22nd January 2026
23AQI (US)
23rd January 2026
40AQI (US)
24th January 2026
37AQI (US)
25th January 2026
42AQI (US)
26th January 2026
30AQI (US)
27th January 2026
43AQI (US)
28th January 2026
26AQI (US)
29th January 2026
25AQI (US)
30th January 2026
36AQI (US)
31st January 2026
38AQI (US)
1st February 2026
37AQI (US)
2nd February 2026
47AQI (US)
3rd February 2026
31AQI (US)
4th February 2026
37AQI (US)
5th February 2026
44AQI (US)
6th February 2026
38AQI (US)
7th February 2026
11AQI (US)
8th February 2026
16AQI (US)
9th February 2026
37AQI (US)
10th February 2026
41AQI (US)
11th February 2026
48AQI (US)
12th February 2026
35AQI (US)
13th February 2026
49AQI (US)
14th February 2026
68AQI (US)
15th February 2026
58AQI (US)
16th February 2026
37AQI (US)
17th February 2026
15AQI (US)
18th February 2026
31AQI (US)
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

28AQI (US)

38AQI (US)

No. of days

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

202631AQI (US)

30
1
16
2
46
3

Highest AQI (US) recorded in

February

38AQI (US)

Lowest AQI (US) recorded in

January

28AQI (US)

202539AQI (US)

30
1
28
22
9
25
5
27
4
27
3
17
14
24
7
30
26
5
29
1
25
6
310
55

Highest AQI (US) recorded in

July

50AQI (US)

Lowest AQI (US) recorded in

January

33AQI (US)

202436AQI (US)

31
28
1
28
3
18
12
25
6
27
3
26
5
30
1
28
2
31
28
2
31
331
35

Highest AQI (US) recorded in

April

50AQI (US)

Lowest AQI (US) recorded in

September

28AQI (US)

202340AQI (US)

28
3
23
5
23
8
16
14
22
9
25
5
19
12
30
1
30
30
1
21
8
28
3
295
69

Highest AQI (US) recorded in

April

51AQI (US)

Lowest AQI (US) recorded in

August

32AQI (US)

202238AQI (US)

30
1
20
1
23
8
20
10
26
5
20
10
16
6
1
24
4
27
4
24
6
31
262
55

Highest AQI (US) recorded in

June

46AQI (US)

Lowest AQI (US) recorded in

December

29AQI (US)

202137AQI (US)

27
4
23
5
24
7
25
5
25
6
24
6
28
3
26
5
27
3
29
2
28
2
30
1
316
49

Highest AQI (US) recorded in

June

44AQI (US)

Lowest AQI (US) recorded in

October

30AQI (US)

202036AQI (US)

11
2
18
3
18
21
9
29
2
14
17
19
28
3
23
7
30
1
211
44

Highest AQI (US) recorded in

August

52AQI (US)

Lowest AQI (US) recorded in

September

23AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
40AQI (US)
Least Polluted Year Recorded
2026(Avg.)
31AQI (US)

Atsuka's annual 2026 AQI (US) (31) shows an average percentage change of -16.07% (improved AQI (US)) compared to previous years: 2020 (36), 2021 (37), 2022 (38), 2023 (40), 2024 (36), 2025 (39).