Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Chuo, Nasukarasuyama, Tochigi, 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

Chuo, Nasukarasuyama, Tochigi, Japan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
2nd Aug 2022
62AQI
Lowest AQI recorded on
30th Aug 2024
10AQI

Same Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 39 of Good air quality, showing improvement over 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 4th Aug - 5th Aug 2025

Chuo, Nasukarasuyama, Tochigi, Japan

AQI
Day
Night
.

4 AM4th Aug 2025

6 PM

3 AM5th Aug 2025

Day time
Avg. Highest Time
2PM4th Aug

77AQI

Avg. Lowest Time
7AM4th Aug

41AQI

Night time
Avg. Highest Time
7PM4th Aug

62AQI

Avg. Lowest Time
3AM5th Aug

40AQI

In the last 24 hours,

Chuo's AQI reached its highest point of 77 at 2 PM during the Day, while the lowest point, 40, was recorded at 3 AM during the Night between 4th Aug and 5th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Chuo, Nasukarasuyama, Tochigi, Japan

JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025504 AMAQI
6th Jul 2025515 AMAQI
6th Jul 2025516 AMAQI
6th Jul 2025517 AMAQI
6th Jul 2025518 AMAQI
6th Jul 2025589 AMAQI
6th Jul 20256110 AMAQI
6th Jul 20256011 AMAQI
6th Jul 20256112 PMAQI
6th Jul 2025631 PMAQI
6th Jul 2025662 PMAQI
6th Jul 2025643 PMAQI
6th Jul 2025644 PMAQI
6th Jul 2025675 PMAQI
6th Jul 2025646 PMAQI
6th Jul 2025647 PMAQI
6th Jul 2025628 PMAQI
6th Jul 2025609 PMAQI
6th Jul 20256110 PMAQI
6th Jul 20256211 PMAQI
7th Jul 20256212 AMAQI
7th Jul 2025561 AMAQI
7th Jul 2025532 AMAQI
7th Jul 2025523 AMAQI

27°C22/33°C

7th Jul 2025534 AMAQI
7th Jul 2025555 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025548 AMAQI
7th Jul 2025749 AMAQI
7th Jul 20258810 AMAQI
7th Jul 20259311 AMAQI
7th Jul 20259612 PMAQI
7th Jul 2025901 PMAQI
7th Jul 2025862 PMAQI
7th Jul 2025783 PMAQI
7th Jul 2025784 PMAQI
7th Jul 2025785 PMAQI
7th Jul 2025806 PMAQI
7th Jul 2025807 PMAQI
7th Jul 2025808 PMAQI
7th Jul 2025709 PMAQI
7th Jul 20257010 PMAQI
7th Jul 20256811 PMAQI
8th Jul 20256712 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025552 AMAQI
8th Jul 2025553 AMAQI

26°C22/32°C

8th Jul 2025584 AMAQI
8th Jul 2025605 AMAQI
8th Jul 2025606 AMAQI
8th Jul 2025607 AMAQI
8th Jul 2025608 AMAQI
8th Jul 2025939 AMAQI
8th Jul 202510810 AMAQI
8th Jul 202510611 AMAQI
8th Jul 202510212 PMAQI
8th Jul 2025911 PMAQI
8th Jul 2025892 PMAQI
8th Jul 2025863 PMAQI
8th Jul 2025834 PMAQI
8th Jul 2025775 PMAQI
8th Jul 2025766 PMAQI
8th Jul 2025817 PMAQI
8th Jul 2025738 PMAQI
8th Jul 2025659 PMAQI
8th Jul 20256510 PMAQI
8th Jul 20256511 PMAQI
9th Jul 20256512 AMAQI
9th Jul 2025621 AMAQI
9th Jul 2025592 AMAQI
9th Jul 2025583 AMAQI

27°C22/34°C

9th Jul 2025624 AMAQI
9th Jul 2025655 AMAQI
9th Jul 2025656 AMAQI
9th Jul 2025667 AMAQI
9th Jul 2025658 AMAQI
9th Jul 2025919 AMAQI
9th Jul 202510510 AMAQI
9th Jul 202510611 AMAQI
9th Jul 202510312 PMAQI
9th Jul 20251011 PMAQI
9th Jul 2025952 PMAQI
9th Jul 2025933 PMAQI
9th Jul 2025914 PMAQI
9th Jul 2025945 PMAQI
9th Jul 2025906 PMAQI
9th Jul 2025907 PMAQI
9th Jul 2025818 PMAQI
9th Jul 2025669 PMAQI
9th Jul 20256010 PMAQI
9th Jul 20255811 PMAQI
10th Jul 20255712 AMAQI
10th Jul 2025591 AMAQI
10th Jul 2025612 AMAQI
10th Jul 2025613 AMAQI

27°C22/34°C

10th Jul 2025644 AMAQI
10th Jul 2025685 AMAQI
10th Jul 2025676 AMAQI
10th Jul 2025677 AMAQI
10th Jul 2025668 AMAQI
10th Jul 2025539 AMAQI
10th Jul 20255110 AMAQI
10th Jul 20255311 AMAQI
10th Jul 20255812 PMAQI
10th Jul 2025631 PMAQI
10th Jul 2025642 PMAQI
10th Jul 2025623 PMAQI
10th Jul 2025564 PMAQI
10th Jul 2025485 PMAQI
10th Jul 2025436 PMAQI
10th Jul 2025287 PMAQI
10th Jul 2025408 PMAQI
10th Jul 2025519 PMAQI
10th Jul 20255310 PMAQI
10th Jul 20255311 PMAQI
11th Jul 20255412 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025622 AMAQI
11th Jul 2025623 AMAQI

24°C20/29°C

11th Jul 2025624 AMAQI
11th Jul 2025625 AMAQI
11th Jul 2025616 AMAQI
11th Jul 2025617 AMAQI
11th Jul 2025618 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20251611 AMAQI
11th Jul 20251612 PMAQI
11th Jul 2025231 PMAQI
11th Jul 2025262 PMAQI
11th Jul 2025263 PMAQI
11th Jul 2025244 PMAQI
11th Jul 2025265 PMAQI
11th Jul 2025296 PMAQI
11th Jul 2025297 PMAQI
11th Jul 2025398 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255211 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025541 AMAQI
12th Jul 2025592 AMAQI
12th Jul 2025593 AMAQI

19°C18/21°C

12th Jul 2025584 AMAQI
12th Jul 2025555 AMAQI
12th Jul 2025556 AMAQI
12th Jul 2025557 AMAQI
12th Jul 2025558 AMAQI
12th Jul 2025359 AMAQI
12th Jul 20253110 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253412 PMAQI
12th Jul 2025351 PMAQI
12th Jul 2025332 PMAQI
12th Jul 2025343 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025355 PMAQI
12th Jul 2025366 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255210 PMAQI
12th Jul 20255111 PMAQI
13th Jul 20255012 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025563 AMAQI

20°C17/24°C

13th Jul 2025554 AMAQI
13th Jul 2025545 AMAQI
13th Jul 2025536 AMAQI
13th Jul 2025537 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20254111 AMAQI
13th Jul 20254612 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025522 PMAQI
13th Jul 2025513 PMAQI
13th Jul 2025504 PMAQI
13th Jul 2025465 PMAQI
13th Jul 2025496 PMAQI
13th Jul 2025497 PMAQI
13th Jul 2025468 PMAQI
13th Jul 2025459 PMAQI
13th Jul 20254310 PMAQI
13th Jul 20254211 PMAQI
14th Jul 20254412 AMAQI
14th Jul 2025501 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025543 AMAQI

23°C17/28°C

14th Jul 2025544 AMAQI
14th Jul 2025535 AMAQI
14th Jul 2025536 AMAQI
14th Jul 2025537 AMAQI
14th Jul 2025538 AMAQI
14th Jul 2025269 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251711 AMAQI
14th Jul 20251512 PMAQI
14th Jul 2025201 PMAQI
14th Jul 2025212 PMAQI
14th Jul 2025203 PMAQI
14th Jul 2025224 PMAQI
14th Jul 2025245 PMAQI
14th Jul 2025226 PMAQI
14th Jul 2025217 PMAQI
14th Jul 2025288 PMAQI
14th Jul 2025409 PMAQI
14th Jul 20254110 PMAQI
14th Jul 20253811 PMAQI
15th Jul 20253812 AMAQI
15th Jul 2025461 AMAQI
15th Jul 2025522 AMAQI
15th Jul 2025523 AMAQI

23°C20/27°C

15th Jul 2025514 AMAQI
15th Jul 2025495 AMAQI
15th Jul 2025496 AMAQI
15th Jul 2025507 AMAQI
15th Jul 2025498 AMAQI
15th Jul 2025249 AMAQI
15th Jul 20251910 AMAQI
15th Jul 20251911 AMAQI
15th Jul 20251912 PMAQI
15th Jul 2025241 PMAQI
15th Jul 2025212 PMAQI
15th Jul 2025203 PMAQI
15th Jul 2025184 PMAQI
15th Jul 2025205 PMAQI
15th Jul 2025186 PMAQI
15th Jul 2025207 PMAQI
15th Jul 2025278 PMAQI
15th Jul 2025389 PMAQI
15th Jul 20253810 PMAQI
15th Jul 20253811 PMAQI
16th Jul 20253712 AMAQI
16th Jul 2025441 AMAQI
16th Jul 2025502 AMAQI
16th Jul 2025513 AMAQI

24°C23/26°C

16th Jul 2025484 AMAQI
16th Jul 2025465 AMAQI
16th Jul 2025456 AMAQI
16th Jul 2025447 AMAQI
16th Jul 2025448 AMAQI
16th Jul 2025509 AMAQI
16th Jul 20255410 AMAQI
16th Jul 20255411 AMAQI
16th Jul 20254612 PMAQI
16th Jul 2025351 PMAQI
16th Jul 2025292 PMAQI
16th Jul 2025253 PMAQI
16th Jul 2025244 PMAQI
16th Jul 2025215 PMAQI
16th Jul 2025256 PMAQI
16th Jul 2025297 PMAQI
16th Jul 2025308 PMAQI
16th Jul 2025349 PMAQI
16th Jul 20253410 PMAQI
16th Jul 20253611 PMAQI
17th Jul 20253812 AMAQI
17th Jul 2025411 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025473 AMAQI

24°C22/28°C

17th Jul 2025464 AMAQI
17th Jul 2025465 AMAQI
17th Jul 2025466 AMAQI
17th Jul 2025467 AMAQI
17th Jul 2025468 AMAQI
17th Jul 2025259 AMAQI
17th Jul 20251810 AMAQI
17th Jul 20252011 AMAQI
17th Jul 20252912 PMAQI
17th Jul 2025341 PMAQI
17th Jul 2025272 PMAQI
17th Jul 2025253 PMAQI
17th Jul 2025294 PMAQI
17th Jul 2025345 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025367 PMAQI
17th Jul 2025408 PMAQI
17th Jul 2025429 PMAQI
17th Jul 20254210 PMAQI
17th Jul 20254011 PMAQI
18th Jul 20253912 AMAQI
18th Jul 2025421 AMAQI
18th Jul 2025452 AMAQI
18th Jul 2025463 AMAQI

25°C22/30°C

18th Jul 2025454 AMAQI
18th Jul 2025425 AMAQI
18th Jul 2025406 AMAQI
18th Jul 2025427 AMAQI
18th Jul 2025428 AMAQI
18th Jul 2025309 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20253011 AMAQI
18th Jul 20253112 PMAQI
18th Jul 2025331 PMAQI
18th Jul 2025352 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025324 PMAQI
18th Jul 2025305 PMAQI
18th Jul 2025286 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025288 PMAQI
18th Jul 2025339 PMAQI
18th Jul 20253410 PMAQI
18th Jul 20253511 PMAQI
19th Jul 20253712 AMAQI
19th Jul 2025411 AMAQI
19th Jul 2025442 AMAQI
19th Jul 2025443 AMAQI

25°C21/31°C

19th Jul 2025424 AMAQI
19th Jul 2025425 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025427 AMAQI
19th Jul 2025418 AMAQI
19th Jul 2025329 AMAQI
19th Jul 20253210 AMAQI
19th Jul 20253011 AMAQI
19th Jul 20253212 PMAQI
19th Jul 2025321 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025323 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025287 PMAQI
19th Jul 2025278 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253610 PMAQI
19th Jul 20253611 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025381 AMAQI
20th Jul 2025432 AMAQI
20th Jul 2025423 AMAQI

25°C21/32°C

20th Jul 2025424 AMAQI
20th Jul 2025415 AMAQI
20th Jul 2025416 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20252910 AMAQI
20th Jul 20253411 AMAQI
20th Jul 20254012 PMAQI
20th Jul 2025401 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025443 PMAQI
20th Jul 2025494 PMAQI
20th Jul 2025495 PMAQI
20th Jul 2025446 PMAQI
20th Jul 2025387 PMAQI
20th Jul 2025368 PMAQI
20th Jul 2025449 PMAQI
20th Jul 20255010 PMAQI
20th Jul 20253611 PMAQI
21st Jul 20253712 AMAQI
21st Jul 2025391 AMAQI
21st Jul 2025412 AMAQI
21st Jul 2025413 AMAQI

27°C22/33°C

21st Jul 2025404 AMAQI
21st Jul 2025395 AMAQI
21st Jul 2025396 AMAQI
21st Jul 2025407 AMAQI
21st Jul 2025398 AMAQI
21st Jul 2025409 AMAQI
21st Jul 20254210 AMAQI
21st Jul 20254611 AMAQI
21st Jul 20255112 PMAQI
21st Jul 2025521 PMAQI
21st Jul 2025542 PMAQI
21st Jul 2025543 PMAQI
21st Jul 2025544 PMAQI
21st Jul 2025545 PMAQI
21st Jul 2025496 PMAQI
21st Jul 2025417 PMAQI
21st Jul 2025378 PMAQI
21st Jul 2025409 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254312 AMAQI
22nd Jul 2025401 AMAQI
22nd Jul 2025402 AMAQI
22nd Jul 2025393 AMAQI

28°C22/35°C

22nd Jul 2025404 AMAQI
22nd Jul 2025425 AMAQI
22nd Jul 2025406 AMAQI
22nd Jul 2025407 AMAQI
22nd Jul 2025428 AMAQI
22nd Jul 2025479 AMAQI
22nd Jul 20255110 AMAQI
22nd Jul 20255411 AMAQI
22nd Jul 20255412 PMAQI
22nd Jul 2025521 PMAQI
22nd Jul 2025522 PMAQI
22nd Jul 2025543 PMAQI
22nd Jul 2025544 PMAQI
22nd Jul 2025555 PMAQI
22nd Jul 2025546 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025348 PMAQI
22nd Jul 2025389 PMAQI
22nd Jul 20254010 PMAQI
22nd Jul 20254011 PMAQI
23rd Jul 20253812 AMAQI
23rd Jul 2025391 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025403 AMAQI

28°C22/35°C

23rd Jul 2025414 AMAQI
23rd Jul 2025445 AMAQI
23rd Jul 2025436 AMAQI
23rd Jul 2025437 AMAQI
23rd Jul 2025438 AMAQI
23rd Jul 2025489 AMAQI
23rd Jul 20255010 AMAQI
23rd Jul 20255011 AMAQI
23rd Jul 20255412 PMAQI
23rd Jul 2025551 PMAQI
23rd Jul 2025562 PMAQI
23rd Jul 2025563 PMAQI
23rd Jul 2025554 PMAQI
23rd Jul 2025445 PMAQI
23rd Jul 2025346 PMAQI
23rd Jul 2025337 PMAQI
23rd Jul 2025408 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254310 PMAQI
23rd Jul 20254511 PMAQI
24th Jul 20254512 AMAQI
24th Jul 2025441 AMAQI
24th Jul 2025422 AMAQI
24th Jul 2025423 AMAQI

28°C23/35°C

24th Jul 2025444 AMAQI
24th Jul 2025455 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025447 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025479 AMAQI
24th Jul 20255610 AMAQI
24th Jul 20255611 AMAQI
24th Jul 20255912 PMAQI
24th Jul 2025601 PMAQI
24th Jul 2025582 PMAQI
24th Jul 2025583 PMAQI
24th Jul 2025584 PMAQI
24th Jul 2025585 PMAQI
24th Jul 2025566 PMAQI
24th Jul 2025587 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025519 PMAQI
24th Jul 20255010 PMAQI
24th Jul 20255011 PMAQI
25th Jul 20254812 AMAQI
25th Jul 2025451 AMAQI
25th Jul 2025452 AMAQI
25th Jul 2025443 AMAQI

28°C22/35°C

25th Jul 2025464 AMAQI
25th Jul 2025485 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025477 AMAQI
25th Jul 2025478 AMAQI
25th Jul 2025539 AMAQI
25th Jul 20255610 AMAQI
25th Jul 20255911 AMAQI
25th Jul 20256112 PMAQI
25th Jul 2025591 PMAQI
25th Jul 2025582 PMAQI
25th Jul 2025593 PMAQI
25th Jul 2025604 PMAQI
25th Jul 2025575 PMAQI
25th Jul 2025536 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025499 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255211 PMAQI
26th Jul 20255012 AMAQI
26th Jul 2025491 AMAQI
26th Jul 2025462 AMAQI
26th Jul 2025463 AMAQI

27°C22/35°C

26th Jul 2025484 AMAQI
26th Jul 2025505 AMAQI
26th Jul 2025506 AMAQI
26th Jul 2025507 AMAQI
26th Jul 2025508 AMAQI
26th Jul 2025519 AMAQI
26th Jul 20255210 AMAQI
26th Jul 20255311 AMAQI
26th Jul 20255212 PMAQI
26th Jul 2025531 PMAQI
26th Jul 2025542 PMAQI
26th Jul 2025543 PMAQI
26th Jul 2025534 PMAQI
26th Jul 2025545 PMAQI
26th Jul 2025566 PMAQI
26th Jul 2025567 PMAQI
26th Jul 2025518 PMAQI
26th Jul 2025489 PMAQI
26th Jul 20254510 PMAQI
26th Jul 20254311 PMAQI
27th Jul 20253712 AMAQI
27th Jul 2025421 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025493 AMAQI

28°C22/35°C

27th Jul 2025494 AMAQI
27th Jul 2025505 AMAQI
27th Jul 2025506 AMAQI
27th Jul 2025507 AMAQI
27th Jul 2025508 AMAQI
27th Jul 2025449 AMAQI
27th Jul 20254310 AMAQI
27th Jul 20254611 AMAQI
27th Jul 20255212 PMAQI
27th Jul 2025521 PMAQI
27th Jul 2025512 PMAQI
27th Jul 2025513 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025525 PMAQI
27th Jul 2025526 PMAQI
27th Jul 2025507 PMAQI
27th Jul 2025518 PMAQI
27th Jul 2025509 PMAQI
27th Jul 20254810 PMAQI
27th Jul 20253911 PMAQI
28th Jul 20253712 AMAQI
28th Jul 2025421 AMAQI
28th Jul 2025482 AMAQI
28th Jul 2025483 AMAQI

29°C23/35°C

28th Jul 2025484 AMAQI
28th Jul 2025485 AMAQI
28th Jul 2025486 AMAQI
28th Jul 2025487 AMAQI
28th Jul 2025488 AMAQI
28th Jul 2025429 AMAQI
28th Jul 20254210 AMAQI
28th Jul 20254611 AMAQI
28th Jul 20254712 PMAQI
28th Jul 2025481 PMAQI
28th Jul 2025452 PMAQI
28th Jul 2025503 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025505 PMAQI
28th Jul 2025466 PMAQI
28th Jul 2025417 PMAQI
28th Jul 2025428 PMAQI
28th Jul 2025469 PMAQI
28th Jul 20254610 PMAQI
28th Jul 20254711 PMAQI
29th Jul 20254612 AMAQI
29th Jul 2025461 AMAQI
29th Jul 2025462 AMAQI
29th Jul 2025463 AMAQI

29°C24/36°C

29th Jul 2025464 AMAQI
29th Jul 2025475 AMAQI
29th Jul 2025466 AMAQI
29th Jul 2025467 AMAQI
29th Jul 2025468 AMAQI
29th Jul 2025499 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255412 PMAQI
29th Jul 2025541 PMAQI
29th Jul 2025502 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025544 PMAQI
29th Jul 2025455 PMAQI
29th Jul 2025316 PMAQI
29th Jul 2025227 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025339 PMAQI
29th Jul 20253210 PMAQI
29th Jul 20253011 PMAQI
30th Jul 20253212 AMAQI
30th Jul 2025401 AMAQI
30th Jul 2025472 AMAQI
30th Jul 2025473 AMAQI

28°C23/37°C

30th Jul 2025484 AMAQI
30th Jul 2025485 AMAQI
30th Jul 2025486 AMAQI
30th Jul 2025487 AMAQI
30th Jul 2025488 AMAQI
30th Jul 2025289 AMAQI
30th Jul 20252210 AMAQI
30th Jul 20252511 AMAQI
30th Jul 20252612 PMAQI
30th Jul 2025261 PMAQI
30th Jul 2025312 PMAQI
30th Jul 2025343 PMAQI
30th Jul 2025334 PMAQI
30th Jul 2025325 PMAQI
30th Jul 2025296 PMAQI
30th Jul 2025277 PMAQI
30th Jul 2025338 PMAQI
30th Jul 2025439 PMAQI
30th Jul 20254410 PMAQI
30th Jul 20254411 PMAQI
31st Jul 20254412 AMAQI
31st Jul 2025441 AMAQI
31st Jul 2025462 AMAQI
31st Jul 2025463 AMAQI

27°C22/35°C

31st Jul 2025484 AMAQI
31st Jul 2025485 AMAQI
31st Jul 2025486 AMAQI
31st Jul 2025487 AMAQI
31st Jul 2025488 AMAQI
31st Jul 2025489 AMAQI
31st Jul 20254810 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20253812 PMAQI
31st Jul 2025361 PMAQI
31st Jul 2025342 PMAQI
31st Jul 2025383 PMAQI
31st Jul 2025384 PMAQI
31st Jul 2025375 PMAQI
31st Jul 2025286 PMAQI
31st Jul 2025247 PMAQI
31st Jul 2025288 PMAQI
31st Jul 2025349 PMAQI
31st Jul 20253510 PMAQI
31st Jul 20252611 PMAQI
1st Aug 20253312 AMAQI
1st Aug 2025381 AMAQI
1st Aug 2025382 AMAQI
1st Aug 2025403 AMAQI

26°C21/34°C

1st Aug 2025424 AMAQI
1st Aug 2025405 AMAQI
1st Aug 2025396 AMAQI
1st Aug 2025427 AMAQI
1st Aug 2025418 AMAQI
1st Aug 2025389 AMAQI
1st Aug 20252810 AMAQI
1st Aug 20254111 AMAQI
1st Aug 20254512 PMAQI
1st Aug 2025461 PMAQI
1st Aug 2025362 PMAQI
1st Aug 2025343 PMAQI
1st Aug 2025434 PMAQI
1st Aug 2025395 PMAQI
1st Aug 2025436 PMAQI
1st Aug 2025307 PMAQI
1st Aug 2025288 PMAQI
1st Aug 2025329 PMAQI
1st Aug 20253610 PMAQI
1st Aug 20252911 PMAQI
2nd Aug 20252812 AMAQI
2nd Aug 2025341 AMAQI
2nd Aug 2025392 AMAQI
2nd Aug 2025403 AMAQI

25°C20/30°C

2nd Aug 2025414 AMAQI
2nd Aug 2025405 AMAQI
2nd Aug 2025426 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025408 AMAQI
2nd Aug 2025349 AMAQI
2nd Aug 20253210 AMAQI
2nd Aug 20253611 AMAQI
2nd Aug 20252712 PMAQI
2nd Aug 2025341 PMAQI
2nd Aug 2025482 PMAQI
2nd Aug 2025493 PMAQI
2nd Aug 2025414 PMAQI
2nd Aug 2025505 PMAQI
2nd Aug 2025496 PMAQI
2nd Aug 2025507 PMAQI
2nd Aug 2025428 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253510 PMAQI
2nd Aug 20253911 PMAQI
3rd Aug 20253112 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025392 AMAQI
3rd Aug 2025393 AMAQI

29°C24/36°C

3rd Aug 2025404 AMAQI
3rd Aug 2025405 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025398 AMAQI
3rd Aug 2025409 AMAQI
3rd Aug 20254610 AMAQI
3rd Aug 20254311 AMAQI
3rd Aug 20255612 PMAQI
3rd Aug 2025511 PMAQI
3rd Aug 2025562 PMAQI
3rd Aug 2025463 PMAQI
3rd Aug 2025514 PMAQI
3rd Aug 2025505 PMAQI
3rd Aug 2025526 PMAQI
3rd Aug 2025527 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025419 PMAQI
3rd Aug 20253810 PMAQI
3rd Aug 20253811 PMAQI
4th Aug 20253312 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI

28°C23/35°C

4th Aug 2025414 AMAQI
4th Aug 2025425 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025417 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025459 AMAQI
4th Aug 20255010 AMAQI
4th Aug 20256111 AMAQI
4th Aug 20257012 PMAQI
4th Aug 2025661 PMAQI
4th Aug 2025772 PMAQI
4th Aug 2025663 PMAQI
4th Aug 2025774 PMAQI
4th Aug 2025725 PMAQI
4th Aug 2025696 PMAQI
4th Aug 2025627 PMAQI
4th Aug 2025608 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255111 PMAQI
5th Aug 20255012 AMAQI
5th Aug 2025431 AMAQI
5th Aug 2025422 AMAQI
5th Aug 2025403 AMAQI

28°C22/35°C

5th Aug 2025484 AMAQI
4 AM
5th Aug 2025495 AMAQI
5th Aug 2025486 AMAQI
5th Aug 2025487 AMAQI
5th Aug 2025518 AMAQI
5th Aug 2025509 AMAQI
5th Aug 20255810 AMAQI
5th Aug 20255611 AMAQI
11 AM
5th Aug 20256212 PMAQI
6 PM
11 PM
3 AM

--°C/°C

Day time
Avg. Highest Time
4 AM - 6 PM

48AQI

15 hours / Day
450 hours / Month
Avg. Lowest Time
9 AM - 6 PM

48AQI

10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 6 PM (Avg. 48), while the lowest AQI was between 9 AM to 6 PM (Avg. 48).
Night time
Avg. Highest Time
12 AM - 3 AM

47AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 11 PM

45AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 47), while the lowest AQI was between 7 PM to 11 PM (Avg. 45).

2025 Days Vs Air Quality

Chuo, Nasukarasuyama, Tochigi, Japan

2025

89%

192

11%

24

Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)

Good
192 Days
Moderate
24 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 89%

Health Risk Level:

Low

In 2025, 89% of 217 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

Chuo, Nasukarasuyama, Tochigi, 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
26AQI
2nd January 2025
27AQI
3rd January 2025
24AQI
4th January 2025
25AQI
5th January 2025
26AQI
6th January 2025
45AQI
7th January 2025
25AQI
8th January 2025
31AQI
9th January 2025
25AQI
10th January 2025
25AQI
11th January 2025
23AQI
12th January 2025
25AQI
13th January 2025
29AQI
14th January 2025
28AQI
15th January 2025
30AQI
16th January 2025
26AQI
17th January 2025
26AQI
18th January 2025
25AQI
19th January 2025
55AQI
20th January 2025
36AQI
21st January 2025
42AQI
22nd January 2025
34AQI
23rd January 2025
35AQI
24th January 2025
34AQI
25th January 2025
31AQI
26th January 2025
29AQI
27th January 2025
27AQI
28th January 2025
33AQI
29th January 2025
28AQI
30th January 2025
26AQI
31st January 2025
29AQI
1st February 2025
28AQI
2nd February 2025
29AQI
3rd February 2025
27AQI
4th February 2025
29AQI
5th February 2025
30AQI
6th February 2025
29AQI
7th February 2025
28AQI
8th February 2025
29AQI
9th February 2025
28AQI
10th February 2025
30AQI
11th February 2025
30AQI
12th February 2025
34AQI
13th February 2025
33AQI
14th February 2025
30AQI
15th February 2025
30AQI
16th February 2025
34AQI
17th February 2025
36AQI
18th February 2025
31AQI
19th February 2025
31AQI
20th February 2025
31AQI
21st February 2025
31AQI
22nd February 2025
32AQI
23rd February 2025
32AQI
24th February 2025
33AQI
25th February 2025
33AQI
26th February 2025
37AQI
27th February 2025
35AQI
28th February 2025
45AQI
1st March 2025
45AQI
2nd March 2025
51AQI
3rd March 2025
34AQI
4th March 2025
36AQI
5th March 2025
27AQI
6th March 2025
32AQI
7th March 2025
33AQI
8th March 2025
35AQI
9th March 2025
34AQI
10th March 2025
36AQI
11th March 2025
40AQI
12th March 2025
39AQI
13th March 2025
42AQI
14th March 2025
32AQI
15th March 2025
33AQI
16th March 2025
22AQI
17th March 2025
19AQI
18th March 2025
22AQI
19th March 2025
17AQI
20th March 2025
22AQI
21st March 2025
33AQI
22nd March 2025
45AQI
23rd March 2025
47AQI
24th March 2025
47AQI
25th March 2025
66AQI
26th March 2025
62AQI
27th March 2025
67AQI
28th March 2025
48AQI
29th March 2025
37AQI
30th March 2025
34AQI
31st March 2025
30AQI
1st April 2025
25AQI
2nd April 2025
21AQI
3rd April 2025
19AQI
4th April 2025
19AQI
5th April 2025
24AQI
6th April 2025
24AQI
7th April 2025
27AQI
8th April 2025
36AQI
9th April 2025
24AQI
10th April 2025
43AQI
11th April 2025
38AQI
12th April 2025
34AQI
13th April 2025
25AQI
14th April 2025
24AQI
15th April 2025
26AQI
16th April 2025
20AQI
17th April 2025
40AQI
18th April 2025
49AQI
19th April 2025
61AQI
20th April 2025
58AQI
21st April 2025
41AQI
22nd April 2025
49AQI
23rd April 2025
28AQI
24th April 2025
34AQI
25th April 2025
31AQI
26th April 2025
45AQI
27th April 2025
44AQI
28th April 2025
51AQI
29th April 2025
32AQI
30th April 2025
40AQI
1st May 2025
38AQI
2nd May 2025
27AQI
3rd May 2025
32AQI
4th May 2025
31AQI
5th May 2025
32AQI
6th May 2025
28AQI
7th May 2025
23AQI
8th May 2025
27AQI
9th May 2025
31AQI
10th May 2025
19AQI
11th May 2025
20AQI
12th May 2025
19AQI
13th May 2025
33AQI
14th May 2025
35AQI
15th May 2025
42AQI
16th May 2025
47AQI
17th May 2025
30AQI
18th May 2025
39AQI
19th May 2025
39AQI
20th May 2025
55AQI
21st May 2025
62AQI
22nd May 2025
51AQI
23rd May 2025
46AQI
24th May 2025
40AQI
25th May 2025
29AQI
26th May 2025
27AQI
27th May 2025
25AQI
28th May 2025
25AQI
29th May 2025
29AQI
30th May 2025
25AQI
31st May 2025
18AQI
1st June 2025
22AQI
2nd June 2025
33AQI
3rd June 2025
33AQI
4th June 2025
28AQI
5th June 2025
36AQI
6th June 2025
46AQI
7th June 2025
52AQI
8th June 2025
61AQI
9th June 2025
54AQI
10th June 2025
45AQI
11th June 2025
36AQI
12th June 2025
42AQI
13th June 2025
39AQI
14th June 2025
37AQI
15th June 2025
30AQI
16th June 2025
33AQI
17th June 2025
38AQI
18th June 2025
38AQI
19th June 2025
39AQI
20th June 2025
38AQI
21st June 2025
38AQI
22nd June 2025
33AQI
23rd June 2025
33AQI
24th June 2025
36AQI
25th June 2025
28AQI
26th June 2025
27AQI
27th June 2025
35AQI
28th June 2025
33AQI
29th June 2025
41AQI
30th June 2025
48AQI
1st July 2025
49AQI
2nd July 2025
49AQI
3rd July 2025
53AQI
4th July 2025
52AQI
5th July 2025
54AQI
6th July 2025
58AQI
7th July 2025
70AQI
8th July 2025
73AQI
9th July 2025
77AQI
10th July 2025
55AQI
11th July 2025
43AQI
12th July 2025
46AQI
13th July 2025
49AQI
14th July 2025
36AQI
15th July 2025
34AQI
16th July 2025
39AQI
17th July 2025
38AQI
18th July 2025
35AQI
19th July 2025
36AQI
20th July 2025
40AQI
21st July 2025
44AQI
22nd July 2025
45AQI
23rd July 2025
44AQI
24th July 2025
51AQI
25th July 2025
51AQI
26th July 2025
50AQI
27th July 2025
48AQI
28th July 2025
46AQI
29th July 2025
43AQI
30th July 2025
37AQI
31st July 2025
39AQI
1st August 2025
37AQI
2nd August 2025
40AQI
3rd August 2025
43AQI
4th August 2025
39AQI

30AQI

32AQI

38AQI

34AQI

33AQI

38AQI

48AQI

40AQI

No. of days

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

202536AQI

30
1
28
27
4
27
3
28
3
27
3
21
10
4
192
24

Highest AQI recorded in

July

48AQI

Lowest AQI recorded in

January

30AQI

202433AQI

31
29
27
4
25
5
28
3
25
5
20
11
31
28
2
31
29
1
31
335
31

Highest AQI recorded in

July

46AQI

Lowest AQI recorded in

January

26AQI

202333AQI

12
1
27
4
25
5
25
6
30
1
29
1
30
1
24
5
31
233
24

Highest AQI recorded in

April

42AQI

Lowest AQI recorded in

October

27AQI

202237AQI

30
1
21
28
3
23
7
27
4
15
15
18
7
2
1
28
1
28
3
11
1
231
43

Highest AQI recorded in

August

50AQI

Lowest AQI recorded in

February

30AQI

202134AQI

29
2
22
6
25
4
20
1
26
5
22
8
27
4
26
5
30
27
4
29
1
30
1
313
41

Highest AQI recorded in

June

43AQI

Lowest AQI recorded in

November

31AQI

202035AQI

12
1
20
1
17
1
22
8
28
3
13
18
19
28
3
22
8
29
2
210
45

Highest AQI recorded in

August

55AQI

Lowest AQI recorded in

April

25AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
37AQI
Least Polluted Year Recorded
2024(Avg.)
33AQI

Chuo's annual 2025 AQI (36) shows an average percentage change of 5.3% (worsened AQI) compared to previous years: 2020 (35), 2021 (34), 2022 (37), 2023 (33), 2024 (33).