Chuocho, Oyama, 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
Chuocho, Oyama, Tochigi, Japan
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
55AQILowest AQI recorded on
30th Aug 2024
20AQISame Day Analysis (5th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 50 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Chuocho, Oyama, Tochigi, Japan
AQI
Day
Night
.
4 AM5th Aug 2025
6 PM
3 AM6th Aug 2025
Day time
Avg. Highest Time
12PM5th Aug
66AQI
Avg. Lowest Time
5PM5th Aug
48AQI
Night time
Avg. Highest Time
2AM6th Aug
50AQI
Avg. Lowest Time
7PM5th Aug
40AQI
In the last 24 hours,
Chuocho's AQI reached its highest point of 66 at 12 PM during the Day, while the lowest point, 40, was recorded at 7 PM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chuocho, Oyama, Tochigi, Japan
JulAug
07th - 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 - 06th06th
Day
Night
7th Jul 2025524 AMAQI
7th Jul 2025555 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025548 AMAQI
7th Jul 20251019 AMAQI
7th Jul 202511710 AMAQI
7th Jul 202511811 AMAQI
7th Jul 202511212 PMAQI
7th Jul 2025941 PMAQI
7th Jul 2025882 PMAQI
7th Jul 2025813 PMAQI
7th Jul 2025784 PMAQI
7th Jul 2025785 PMAQI
7th Jul 2025836 PMAQI
7th Jul 2025847 PMAQI
7th Jul 2025818 PMAQI
7th Jul 2025729 PMAQI
7th Jul 20257310 PMAQI
7th Jul 20257311 PMAQI
8th Jul 20257012 AMAQI
8th Jul 2025641 AMAQI
8th Jul 2025552 AMAQI
8th Jul 2025563 AMAQI
31°C27/35°C
8th Jul 2025584 AMAQI
8th Jul 2025635 AMAQI
8th Jul 2025646 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025638 AMAQI
8th Jul 2025999 AMAQI
8th Jul 202511010 AMAQI
8th Jul 202510611 AMAQI
8th Jul 202510212 PMAQI
8th Jul 2025901 PMAQI
8th Jul 2025862 PMAQI
8th Jul 2025823 PMAQI
8th Jul 2025814 PMAQI
8th Jul 2025805 PMAQI
8th Jul 2025796 PMAQI
8th Jul 2025797 PMAQI
8th Jul 2025768 PMAQI
8th Jul 2025689 PMAQI
8th Jul 20257010 PMAQI
8th Jul 20257311 PMAQI
9th Jul 20257412 AMAQI
9th Jul 2025681 AMAQI
9th Jul 2025632 AMAQI
9th Jul 2025633 AMAQI
31°C27/36°C
9th Jul 2025654 AMAQI
9th Jul 2025705 AMAQI
9th Jul 2025706 AMAQI
9th Jul 2025707 AMAQI
9th Jul 2025708 AMAQI
9th Jul 2025899 AMAQI
9th Jul 202510110 AMAQI
9th Jul 202510411 AMAQI
9th Jul 20259812 PMAQI
9th Jul 2025911 PMAQI
9th Jul 2025872 PMAQI
9th Jul 2025873 PMAQI
9th Jul 2025934 PMAQI
9th Jul 2025975 PMAQI
9th Jul 2025946 PMAQI
9th Jul 2025897 PMAQI
9th Jul 2025828 PMAQI
9th Jul 2025659 PMAQI
9th Jul 20256410 PMAQI
9th Jul 20256111 PMAQI
10th Jul 20256112 AMAQI
10th Jul 2025641 AMAQI
10th Jul 2025662 AMAQI
10th Jul 2025673 AMAQI
31°C27/37°C
10th Jul 2025684 AMAQI
10th Jul 2025725 AMAQI
10th Jul 2025736 AMAQI
10th Jul 2025717 AMAQI
10th Jul 2025728 AMAQI
10th Jul 2025499 AMAQI
10th Jul 20254910 AMAQI
10th Jul 20255611 AMAQI
10th Jul 20256412 PMAQI
10th Jul 2025691 PMAQI
10th Jul 2025682 PMAQI
10th Jul 2025633 PMAQI
10th Jul 2025584 PMAQI
10th Jul 2025525 PMAQI
10th Jul 2025446 PMAQI
10th Jul 2025397 PMAQI
10th Jul 2025418 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255610 PMAQI
10th Jul 20255711 PMAQI
11th Jul 20255712 AMAQI
11th Jul 2025621 AMAQI
11th Jul 2025662 AMAQI
11th Jul 2025663 AMAQI
28°C23/36°C
11th Jul 2025684 AMAQI
11th Jul 2025675 AMAQI
11th Jul 2025666 AMAQI
11th Jul 2025667 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025289 AMAQI
11th Jul 20251710 AMAQI
11th Jul 20251611 AMAQI
11th Jul 20251912 PMAQI
11th Jul 2025311 PMAQI
11th Jul 2025302 PMAQI
11th Jul 2025333 PMAQI
11th Jul 2025334 PMAQI
11th Jul 2025325 PMAQI
11th Jul 2025346 PMAQI
11th Jul 2025317 PMAQI
11th Jul 2025408 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255511 PMAQI
12th Jul 20255612 AMAQI
12th Jul 2025581 AMAQI
12th Jul 2025632 AMAQI
12th Jul 2025643 AMAQI
22°C21/24°C
12th Jul 2025624 AMAQI
12th Jul 2025595 AMAQI
12th Jul 2025586 AMAQI
12th Jul 2025587 AMAQI
12th Jul 2025588 AMAQI
12th Jul 2025379 AMAQI
12th Jul 20253210 AMAQI
12th Jul 20253311 AMAQI
12th Jul 20253612 PMAQI
12th Jul 2025441 PMAQI
12th Jul 2025452 PMAQI
12th Jul 2025463 PMAQI
12th Jul 2025474 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255310 PMAQI
12th Jul 20255211 PMAQI
13th Jul 20255312 AMAQI
13th Jul 2025561 AMAQI
13th Jul 2025582 AMAQI
13th Jul 2025593 AMAQI
23°C21/27°C
13th Jul 2025594 AMAQI
13th Jul 2025575 AMAQI
13th Jul 2025576 AMAQI
13th Jul 2025577 AMAQI
13th Jul 2025578 AMAQI
13th Jul 2025469 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20254211 AMAQI
13th Jul 20254312 PMAQI
13th Jul 2025501 PMAQI
13th Jul 2025512 PMAQI
13th Jul 2025503 PMAQI
13th Jul 2025504 PMAQI
13th Jul 2025505 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025497 PMAQI
13th Jul 2025468 PMAQI
13th Jul 2025529 PMAQI
13th Jul 20255210 PMAQI
13th Jul 20255011 PMAQI
14th Jul 20254912 AMAQI
14th Jul 2025531 AMAQI
14th Jul 2025562 AMAQI
14th Jul 2025563 AMAQI
26°C22/31°C
14th Jul 2025554 AMAQI
14th Jul 2025555 AMAQI
14th Jul 2025546 AMAQI
14th Jul 2025557 AMAQI
14th Jul 2025558 AMAQI
14th Jul 2025279 AMAQI
14th Jul 20251710 AMAQI
14th Jul 20251611 AMAQI
14th Jul 20251612 PMAQI
14th Jul 2025221 PMAQI
14th Jul 2025212 PMAQI
14th Jul 2025223 PMAQI
14th Jul 2025214 PMAQI
14th Jul 2025205 PMAQI
14th Jul 2025246 PMAQI
14th Jul 2025267 PMAQI
14th Jul 2025328 PMAQI
14th Jul 2025469 PMAQI
14th Jul 20254810 PMAQI
14th Jul 20254611 PMAQI
15th Jul 20254612 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025543 AMAQI
25°C23/28°C
15th Jul 2025544 AMAQI
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025528 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20252010 AMAQI
15th Jul 20252311 AMAQI
15th Jul 20252512 PMAQI
15th Jul 2025301 PMAQI
15th Jul 2025292 PMAQI
15th Jul 2025253 PMAQI
15th Jul 2025264 PMAQI
15th Jul 2025285 PMAQI
15th Jul 2025266 PMAQI
15th Jul 2025267 PMAQI
15th Jul 2025308 PMAQI
15th Jul 2025409 PMAQI
15th Jul 20254210 PMAQI
15th Jul 20254011 PMAQI
16th Jul 20254212 AMAQI
16th Jul 2025481 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
27°C25/30°C
16th Jul 2025524 AMAQI
16th Jul 2025485 AMAQI
16th Jul 2025496 AMAQI
16th Jul 2025497 AMAQI
16th Jul 2025488 AMAQI
16th Jul 2025519 AMAQI
16th Jul 20255310 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20254312 PMAQI
16th Jul 2025301 PMAQI
16th Jul 2025282 PMAQI
16th Jul 2025243 PMAQI
16th Jul 2025254 PMAQI
16th Jul 2025265 PMAQI
16th Jul 2025266 PMAQI
16th Jul 2025227 PMAQI
16th Jul 2025278 PMAQI
16th Jul 2025399 PMAQI
16th Jul 20254010 PMAQI
16th Jul 20253911 PMAQI
17th Jul 20254212 AMAQI
17th Jul 2025471 AMAQI
17th Jul 2025492 AMAQI
17th Jul 2025493 AMAQI
28°C25/30°C
17th Jul 2025494 AMAQI
17th Jul 2025495 AMAQI
17th Jul 2025486 AMAQI
17th Jul 2025477 AMAQI
17th Jul 2025488 AMAQI
17th Jul 2025239 AMAQI
17th Jul 20252010 AMAQI
17th Jul 20252811 AMAQI
17th Jul 20253412 PMAQI
17th Jul 2025331 PMAQI
17th Jul 2025342 PMAQI
17th Jul 2025293 PMAQI
17th Jul 2025314 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025386 PMAQI
17th Jul 2025407 PMAQI
17th Jul 2025378 PMAQI
17th Jul 2025429 PMAQI
17th Jul 20254210 PMAQI
17th Jul 20254111 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025451 AMAQI
18th Jul 2025472 AMAQI
18th Jul 2025483 AMAQI
29°C26/33°C
18th Jul 2025474 AMAQI
18th Jul 2025435 AMAQI
18th Jul 2025446 AMAQI
18th Jul 2025447 AMAQI
18th Jul 2025438 AMAQI
18th Jul 2025329 AMAQI
18th Jul 20252810 AMAQI
18th Jul 20253211 AMAQI
18th Jul 20253412 PMAQI
18th Jul 2025351 PMAQI
18th Jul 2025352 PMAQI
18th Jul 2025303 PMAQI
18th Jul 2025284 PMAQI
18th Jul 2025265 PMAQI
18th Jul 2025276 PMAQI
18th Jul 2025267 PMAQI
18th Jul 2025308 PMAQI
18th Jul 2025369 PMAQI
18th Jul 20253810 PMAQI
18th Jul 20253911 PMAQI
19th Jul 20253912 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025462 AMAQI
19th Jul 2025463 AMAQI
28°C25/33°C
19th Jul 2025444 AMAQI
19th Jul 2025435 AMAQI
19th Jul 2025426 AMAQI
19th Jul 2025427 AMAQI
19th Jul 2025438 AMAQI
19th Jul 2025329 AMAQI
19th Jul 20253210 AMAQI
19th Jul 20253611 AMAQI
19th Jul 20253612 PMAQI
19th Jul 2025331 PMAQI
19th Jul 2025322 PMAQI
19th Jul 2025303 PMAQI
19th Jul 2025324 PMAQI
19th Jul 2025285 PMAQI
19th Jul 2025236 PMAQI
19th Jul 2025267 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025379 PMAQI
19th Jul 20253910 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253512 AMAQI
20th Jul 2025401 AMAQI
20th Jul 2025432 AMAQI
20th Jul 2025443 AMAQI
29°C25/34°C
20th Jul 2025434 AMAQI
20th Jul 2025415 AMAQI
20th Jul 2025426 AMAQI
20th Jul 2025417 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20253212 PMAQI
20th Jul 2025391 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025383 PMAQI
20th Jul 2025404 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025376 PMAQI
20th Jul 2025367 PMAQI
20th Jul 2025348 PMAQI
20th Jul 2025369 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253511 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025381 AMAQI
21st Jul 2025402 AMAQI
21st Jul 2025413 AMAQI
30°C26/36°C
21st Jul 2025404 AMAQI
21st Jul 2025385 AMAQI
21st Jul 2025386 AMAQI
21st Jul 2025397 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025309 AMAQI
21st Jul 20253410 AMAQI
21st Jul 20254511 AMAQI
21st Jul 20255112 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025472 PMAQI
21st Jul 2025493 PMAQI
21st Jul 2025534 PMAQI
21st Jul 2025535 PMAQI
21st Jul 2025516 PMAQI
21st Jul 2025517 PMAQI
21st Jul 2025468 PMAQI
21st Jul 2025469 PMAQI
21st Jul 20254410 PMAQI
21st Jul 20254011 PMAQI
22nd Jul 20254112 AMAQI
22nd Jul 2025401 AMAQI
22nd Jul 2025382 AMAQI
22nd Jul 2025383 AMAQI
31°C26/38°C
22nd Jul 2025384 AMAQI
22nd Jul 2025405 AMAQI
22nd Jul 2025396 AMAQI
22nd Jul 2025397 AMAQI
22nd Jul 2025408 AMAQI
22nd Jul 2025349 AMAQI
22nd Jul 20253510 AMAQI
22nd Jul 20254011 AMAQI
22nd Jul 20254512 PMAQI
22nd Jul 2025481 PMAQI
22nd Jul 2025492 PMAQI
22nd Jul 2025533 PMAQI
22nd Jul 2025524 PMAQI
22nd Jul 2025505 PMAQI
22nd Jul 2025526 PMAQI
22nd Jul 2025547 PMAQI
22nd Jul 2025498 PMAQI
22nd Jul 2025419 PMAQI
22nd Jul 20254110 PMAQI
22nd Jul 20254011 PMAQI
23rd Jul 20253512 AMAQI
23rd Jul 2025381 AMAQI
23rd Jul 2025402 AMAQI
23rd Jul 2025403 AMAQI
31°C27/38°C
23rd Jul 2025404 AMAQI
23rd Jul 2025405 AMAQI
23rd Jul 2025406 AMAQI
23rd Jul 2025417 AMAQI
23rd Jul 2025418 AMAQI
23rd Jul 2025359 AMAQI
23rd Jul 20253810 AMAQI
23rd Jul 20254311 AMAQI
23rd Jul 20254812 PMAQI
23rd Jul 2025501 PMAQI
23rd Jul 2025542 PMAQI
23rd Jul 2025563 PMAQI
23rd Jul 2025564 PMAQI
23rd Jul 2025565 PMAQI
23rd Jul 2025576 PMAQI
23rd Jul 2025547 PMAQI
23rd Jul 2025488 PMAQI
23rd Jul 2025489 PMAQI
23rd Jul 20254710 PMAQI
23rd Jul 20254711 PMAQI
24th Jul 20254512 AMAQI
24th Jul 2025441 AMAQI
24th Jul 2025402 AMAQI
24th Jul 2025403 AMAQI
31°C26/38°C
24th Jul 2025404 AMAQI
24th Jul 2025425 AMAQI
24th Jul 2025426 AMAQI
24th Jul 2025417 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025409 AMAQI
24th Jul 20255010 AMAQI
24th Jul 20255511 AMAQI
24th Jul 20255612 PMAQI
24th Jul 2025561 PMAQI
24th Jul 2025572 PMAQI
24th Jul 2025543 PMAQI
24th Jul 2025544 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025506 PMAQI
24th Jul 2025537 PMAQI
24th Jul 2025528 PMAQI
24th Jul 2025519 PMAQI
24th Jul 20255210 PMAQI
24th Jul 20255011 PMAQI
25th Jul 20254412 AMAQI
25th Jul 2025421 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025443 AMAQI
32°C26/38°C
25th Jul 2025444 AMAQI
25th Jul 2025465 AMAQI
25th Jul 2025466 AMAQI
25th Jul 2025467 AMAQI
25th Jul 2025468 AMAQI
25th Jul 2025469 AMAQI
25th Jul 20255010 AMAQI
25th Jul 20255311 AMAQI
25th Jul 20255312 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025572 PMAQI
25th Jul 2025563 PMAQI
25th Jul 2025584 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025507 PMAQI
25th Jul 2025498 PMAQI
25th Jul 2025489 PMAQI
25th Jul 20254610 PMAQI
25th Jul 20254111 PMAQI
26th Jul 20254912 AMAQI
26th Jul 2025501 AMAQI
26th Jul 2025462 AMAQI
26th Jul 2025463 AMAQI
31°C27/38°C
26th Jul 2025474 AMAQI
26th Jul 2025485 AMAQI
26th Jul 2025486 AMAQI
26th Jul 2025487 AMAQI
26th Jul 2025488 AMAQI
26th Jul 2025419 AMAQI
26th Jul 20254510 AMAQI
26th Jul 20255211 AMAQI
26th Jul 20255512 PMAQI
26th Jul 2025561 PMAQI
26th Jul 2025582 PMAQI
26th Jul 2025603 PMAQI
26th Jul 2025604 PMAQI
26th Jul 2025615 PMAQI
26th Jul 2025606 PMAQI
26th Jul 2025527 PMAQI
26th Jul 2025428 PMAQI
26th Jul 2025409 PMAQI
26th Jul 20254010 PMAQI
26th Jul 20254311 PMAQI
27th Jul 20254312 AMAQI
27th Jul 2025441 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025493 AMAQI
32°C27/38°C
27th Jul 2025494 AMAQI
27th Jul 2025515 AMAQI
27th Jul 2025506 AMAQI
27th Jul 2025507 AMAQI
27th Jul 2025508 AMAQI
27th Jul 2025479 AMAQI
27th Jul 20254810 AMAQI
27th Jul 20254911 AMAQI
27th Jul 20254712 PMAQI
27th Jul 2025491 PMAQI
27th Jul 2025502 PMAQI
27th Jul 2025473 PMAQI
27th Jul 2025524 PMAQI
27th Jul 2025545 PMAQI
27th Jul 2025526 PMAQI
27th Jul 2025467 PMAQI
27th Jul 2025448 PMAQI
27th Jul 2025419 PMAQI
27th Jul 20253810 PMAQI
27th Jul 20253411 PMAQI
28th Jul 20253612 AMAQI
28th Jul 2025421 AMAQI
28th Jul 2025482 AMAQI
28th Jul 2025493 AMAQI
32°C27/38°C
28th Jul 2025484 AMAQI
28th Jul 2025485 AMAQI
28th Jul 2025486 AMAQI
28th Jul 2025487 AMAQI
28th Jul 2025498 AMAQI
28th Jul 2025359 AMAQI
28th Jul 20253710 AMAQI
28th Jul 20254211 AMAQI
28th Jul 20254012 PMAQI
28th Jul 2025421 PMAQI
28th Jul 2025352 PMAQI
28th Jul 2025383 PMAQI
28th Jul 2025464 PMAQI
28th Jul 2025475 PMAQI
28th Jul 2025446 PMAQI
28th Jul 2025427 PMAQI
28th Jul 2025468 PMAQI
28th Jul 2025509 PMAQI
28th Jul 20255110 PMAQI
28th Jul 20255111 PMAQI
29th Jul 20255012 AMAQI
29th Jul 2025501 AMAQI
29th Jul 2025482 AMAQI
29th Jul 2025453 AMAQI
32°C27/39°C
29th Jul 2025454 AMAQI
29th Jul 2025465 AMAQI
29th Jul 2025456 AMAQI
29th Jul 2025457 AMAQI
29th Jul 2025468 AMAQI
29th Jul 2025469 AMAQI
29th Jul 20254410 AMAQI
29th Jul 20255011 AMAQI
29th Jul 20255412 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025503 PMAQI
29th Jul 2025514 PMAQI
29th Jul 2025485 PMAQI
29th Jul 2025416 PMAQI
29th Jul 2025297 PMAQI
29th Jul 2025308 PMAQI
29th Jul 2025359 PMAQI
29th Jul 20253210 PMAQI
29th Jul 20253111 PMAQI
30th Jul 20253212 AMAQI
30th Jul 2025341 AMAQI
30th Jul 2025452 AMAQI
30th Jul 2025473 AMAQI
32°C27/39°C
30th Jul 2025484 AMAQI
30th Jul 2025495 AMAQI
30th Jul 2025496 AMAQI
30th Jul 2025487 AMAQI
30th Jul 2025498 AMAQI
30th Jul 2025269 AMAQI
30th Jul 20251910 AMAQI
30th Jul 20252011 AMAQI
30th Jul 20252412 PMAQI
30th Jul 2025251 PMAQI
30th Jul 2025262 PMAQI
30th Jul 2025263 PMAQI
30th Jul 2025254 PMAQI
30th Jul 2025285 PMAQI
30th Jul 2025286 PMAQI
30th Jul 2025327 PMAQI
30th Jul 2025358 PMAQI
30th Jul 2025369 PMAQI
30th Jul 20253810 PMAQI
30th Jul 20254011 PMAQI
31st Jul 20253912 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025462 AMAQI
31st Jul 2025453 AMAQI
30°C26/36°C
31st Jul 2025444 AMAQI
31st Jul 2025445 AMAQI
31st Jul 2025446 AMAQI
31st Jul 2025447 AMAQI
31st Jul 2025448 AMAQI
31st Jul 2025449 AMAQI
31st Jul 20254410 AMAQI
31st Jul 20253911 AMAQI
31st Jul 20253312 PMAQI
31st Jul 2025311 PMAQI
31st Jul 2025272 PMAQI
31st Jul 2025243 PMAQI
31st Jul 2025254 PMAQI
31st Jul 2025265 PMAQI
31st Jul 2025236 PMAQI
31st Jul 2025207 PMAQI
31st Jul 2025288 PMAQI
31st Jul 2025309 PMAQI
31st Jul 20253410 PMAQI
31st Jul 20253011 PMAQI
1st Aug 20253012 AMAQI
1st Aug 2025381 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025403 AMAQI
29°C25/35°C
1st Aug 2025384 AMAQI
1st Aug 2025365 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025367 AMAQI
1st Aug 2025388 AMAQI
1st Aug 2025369 AMAQI
1st Aug 20252810 AMAQI
1st Aug 20254011 AMAQI
1st Aug 20254612 PMAQI
1st Aug 2025461 PMAQI
1st Aug 2025322 PMAQI
1st Aug 2025273 PMAQI
1st Aug 2025434 PMAQI
1st Aug 2025325 PMAQI
1st Aug 2025356 PMAQI
1st Aug 2025287 PMAQI
1st Aug 2025268 PMAQI
1st Aug 2025309 PMAQI
1st Aug 20253310 PMAQI
1st Aug 20253011 PMAQI
2nd Aug 20253012 AMAQI
2nd Aug 2025361 AMAQI
2nd Aug 2025382 AMAQI
2nd Aug 2025393 AMAQI
28°C25/32°C
2nd Aug 2025404 AMAQI
2nd Aug 2025385 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025398 AMAQI
2nd Aug 2025319 AMAQI
2nd Aug 20253210 AMAQI
2nd Aug 20254511 AMAQI
2nd Aug 20253112 PMAQI
2nd Aug 2025441 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025503 PMAQI
2nd Aug 2025404 PMAQI
2nd Aug 2025415 PMAQI
2nd Aug 2025456 PMAQI
2nd Aug 2025467 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253710 PMAQI
2nd Aug 20253911 PMAQI
3rd Aug 20253212 AMAQI
3rd Aug 2025361 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025383 AMAQI
31°C27/38°C
3rd Aug 2025404 AMAQI
3rd Aug 2025405 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025398 AMAQI
3rd Aug 2025459 AMAQI
3rd Aug 20255210 AMAQI
3rd Aug 20255011 AMAQI
3rd Aug 20255612 PMAQI
3rd Aug 2025521 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025483 PMAQI
3rd Aug 2025474 PMAQI
3rd Aug 2025475 PMAQI
3rd Aug 2025526 PMAQI
3rd Aug 2025507 PMAQI
3rd Aug 2025478 PMAQI
3rd Aug 2025389 PMAQI
3rd Aug 20253910 PMAQI
3rd Aug 20253911 PMAQI
4th Aug 20253612 AMAQI
4th Aug 2025371 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025403 AMAQI
32°C27/37°C
4th Aug 2025414 AMAQI
4th Aug 2025425 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025427 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025519 AMAQI
4th Aug 20256010 AMAQI
4th Aug 20256611 AMAQI
4th Aug 20257212 PMAQI
4th Aug 2025701 PMAQI
4th Aug 2025752 PMAQI
4th Aug 2025713 PMAQI
4th Aug 2025804 PMAQI
4th Aug 2025845 PMAQI
4th Aug 2025686 PMAQI
4th Aug 2025707 PMAQI
4th Aug 2025628 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20254711 PMAQI
5th Aug 20255512 AMAQI
5th Aug 2025411 AMAQI
5th Aug 2025402 AMAQI
5th Aug 2025403 AMAQI
32°C28/38°C
5th Aug 2025494 AMAQI
5th Aug 2025515 AMAQI
5th Aug 2025516 AMAQI
5th Aug 2025507 AMAQI
5th Aug 2025528 AMAQI
5th Aug 2025559 AMAQI
5th Aug 20255710 AMAQI
5th Aug 20255811 AMAQI
5th Aug 20256612 PMAQI
5th Aug 2025551 PMAQI
5th Aug 2025542 PMAQI
5th Aug 2025543 PMAQI
5th Aug 2025584 PMAQI
5th Aug 2025485 PMAQI
5th Aug 2025556 PMAQI
5th Aug 2025407 PMAQI
5th Aug 2025448 PMAQI
5th Aug 2025469 PMAQI
5th Aug 20254510 PMAQI
5th Aug 20254111 PMAQI
6th Aug 20254412 AMAQI
6th Aug 2025491 AMAQI
6th Aug 2025502 AMAQI
6th Aug 2025493 AMAQI
34°C28/41°C
6th Aug 2025524 AMAQI
4 AM6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025517 AMAQI
6th Aug 2025508 AMAQI
6th Aug 2025419 AMAQI
6th Aug 20254110 AMAQI
6th Aug 20253211 AMAQI
11 AM6th Aug 20254812 PMAQI
6th Aug 2025391 PMAQI
6th Aug 2025512 PMAQI
6th Aug 2025413 PMAQI
6th Aug 2025434 PMAQI
6th Aug 2025365 PMAQI
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
49AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM - 10 AM
44AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 8 AM (Avg. 49), while the lowest AQI was between 9 AM to 10 AM (Avg. 44).
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
Chuocho, Oyama, Tochigi, Japan
2025
93%
201
7%
16
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
201 DaysModerate
16 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2025, 93% of 218 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
Chuocho, Oyama, 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
30AQI
30AQI
2nd January 2025
27AQI
27AQI
3rd January 2025
25AQI
25AQI
4th January 2025
25AQI
25AQI
5th January 2025
31AQI
31AQI
6th January 2025
49AQI
49AQI
7th January 2025
33AQI
33AQI
8th January 2025
36AQI
36AQI
9th January 2025
29AQI
29AQI
10th January 2025
29AQI
29AQI
11th January 2025
26AQI
26AQI
12th January 2025
37AQI
37AQI
13th January 2025
28AQI
28AQI
14th January 2025
36AQI
36AQI
15th January 2025
35AQI
35AQI
16th January 2025
32AQI
32AQI
17th January 2025
31AQI
31AQI
18th January 2025
34AQI
34AQI
19th January 2025
51AQI
51AQI
20th January 2025
40AQI
40AQI
21st January 2025
43AQI
43AQI
22nd January 2025
38AQI
38AQI
23rd January 2025
43AQI
43AQI
24th January 2025
47AQI
47AQI
25th January 2025
36AQI
36AQI
26th January 2025
34AQI
34AQI
27th January 2025
34AQI
34AQI
28th January 2025
39AQI
39AQI
29th January 2025
31AQI
31AQI
30th January 2025
32AQI
32AQI
31st January 2025
28AQI
28AQI
1st February 2025
35AQI
35AQI
2nd February 2025
32AQI
32AQI
3rd February 2025
37AQI
37AQI
4th February 2025
30AQI
30AQI
5th February 2025
33AQI
33AQI
6th February 2025
29AQI
29AQI
7th February 2025
30AQI
30AQI
8th February 2025
31AQI
31AQI
9th February 2025
30AQI
30AQI
10th February 2025
30AQI
30AQI
11th February 2025
30AQI
30AQI
12th February 2025
38AQI
38AQI
13th February 2025
35AQI
35AQI
14th February 2025
33AQI
33AQI
15th February 2025
31AQI
31AQI
16th February 2025
39AQI
39AQI
17th February 2025
36AQI
36AQI
18th February 2025
33AQI
33AQI
19th February 2025
31AQI
31AQI
20th February 2025
31AQI
31AQI
21st February 2025
31AQI
31AQI
22nd February 2025
31AQI
31AQI
23rd February 2025
32AQI
32AQI
24th February 2025
33AQI
33AQI
25th February 2025
34AQI
34AQI
26th February 2025
38AQI
38AQI
27th February 2025
40AQI
40AQI
28th February 2025
49AQI
49AQI
1st March 2025
51AQI
51AQI
2nd March 2025
56AQI
56AQI
3rd March 2025
39AQI
39AQI
4th March 2025
37AQI
37AQI
5th March 2025
27AQI
27AQI
6th March 2025
32AQI
32AQI
7th March 2025
31AQI
31AQI
8th March 2025
39AQI
39AQI
9th March 2025
34AQI
34AQI
10th March 2025
37AQI
37AQI
11th March 2025
44AQI
44AQI
12th March 2025
45AQI
45AQI
13th March 2025
43AQI
43AQI
14th March 2025
36AQI
36AQI
15th March 2025
40AQI
40AQI
16th March 2025
23AQI
23AQI
17th March 2025
24AQI
24AQI
18th March 2025
23AQI
23AQI
19th March 2025
19AQI
19AQI
20th March 2025
25AQI
25AQI
21st March 2025
39AQI
39AQI
22nd March 2025
47AQI
47AQI
23rd March 2025
51AQI
51AQI
24th March 2025
51AQI
51AQI
25th March 2025
66AQI
66AQI
26th March 2025
59AQI
59AQI
27th March 2025
62AQI
62AQI
28th March 2025
46AQI
46AQI
29th March 2025
34AQI
34AQI
30th March 2025
27AQI
27AQI
31st March 2025
25AQI
25AQI
1st April 2025
24AQI
24AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
19AQI
19AQI
4th April 2025
20AQI
20AQI
5th April 2025
21AQI
21AQI
6th April 2025
14AQI
14AQI
7th April 2025
16AQI
16AQI
8th April 2025
21AQI
21AQI
9th April 2025
16AQI
16AQI
10th April 2025
23AQI
23AQI
11th April 2025
23AQI
23AQI
12th April 2025
20AQI
20AQI
13th April 2025
17AQI
17AQI
14th April 2025
18AQI
18AQI
15th April 2025
18AQI
18AQI
16th April 2025
17AQI
17AQI
17th April 2025
28AQI
28AQI
18th April 2025
33AQI
33AQI
19th April 2025
40AQI
40AQI
20th April 2025
30AQI
30AQI
21st April 2025
25AQI
25AQI
22nd April 2025
25AQI
25AQI
23rd April 2025
16AQI
16AQI
24th April 2025
20AQI
20AQI
25th April 2025
18AQI
18AQI
26th April 2025
23AQI
23AQI
27th April 2025
23AQI
23AQI
28th April 2025
26AQI
26AQI
29th April 2025
18AQI
18AQI
30th April 2025
22AQI
22AQI
1st May 2025
20AQI
20AQI
2nd May 2025
18AQI
18AQI
3rd May 2025
19AQI
19AQI
4th May 2025
21AQI
21AQI
5th May 2025
19AQI
19AQI
6th May 2025
17AQI
17AQI
7th May 2025
16AQI
16AQI
8th May 2025
18AQI
18AQI
9th May 2025
19AQI
19AQI
10th May 2025
14AQI
14AQI
11th May 2025
15AQI
15AQI
12th May 2025
15AQI
15AQI
13th May 2025
21AQI
21AQI
14th May 2025
23AQI
23AQI
15th May 2025
24AQI
24AQI
16th May 2025
27AQI
27AQI
17th May 2025
19AQI
19AQI
18th May 2025
24AQI
24AQI
19th May 2025
24AQI
24AQI
20th May 2025
36AQI
36AQI
21st May 2025
40AQI
40AQI
22nd May 2025
34AQI
34AQI
23rd May 2025
31AQI
31AQI
24th May 2025
26AQI
26AQI
25th May 2025
21AQI
21AQI
26th May 2025
19AQI
19AQI
27th May 2025
18AQI
18AQI
28th May 2025
17AQI
17AQI
29th May 2025
18AQI
18AQI
30th May 2025
15AQI
15AQI
31st May 2025
13AQI
13AQI
1st June 2025
15AQI
15AQI
2nd June 2025
22AQI
22AQI
3rd June 2025
20AQI
20AQI
4th June 2025
19AQI
19AQI
5th June 2025
22AQI
22AQI
6th June 2025
28AQI
28AQI
7th June 2025
33AQI
33AQI
8th June 2025
44AQI
44AQI
9th June 2025
35AQI
35AQI
10th June 2025
26AQI
26AQI
11th June 2025
22AQI
22AQI
12th June 2025
26AQI
26AQI
13th June 2025
24AQI
24AQI
14th June 2025
21AQI
21AQI
15th June 2025
20AQI
20AQI
16th June 2025
22AQI
22AQI
17th June 2025
31AQI
31AQI
18th June 2025
39AQI
39AQI
19th June 2025
42AQI
42AQI
20th June 2025
42AQI
42AQI
21st June 2025
36AQI
36AQI
22nd June 2025
34AQI
34AQI
23rd June 2025
33AQI
33AQI
24th June 2025
33AQI
33AQI
25th June 2025
26AQI
26AQI
26th June 2025
28AQI
28AQI
27th June 2025
32AQI
32AQI
28th June 2025
34AQI
34AQI
29th June 2025
40AQI
40AQI
30th June 2025
45AQI
45AQI
1st July 2025
44AQI
44AQI
2nd July 2025
46AQI
46AQI
3rd July 2025
48AQI
48AQI
4th July 2025
49AQI
49AQI
5th July 2025
52AQI
52AQI
6th July 2025
59AQI
59AQI
7th July 2025
75AQI
75AQI
8th July 2025
75AQI
75AQI
9th July 2025
79AQI
79AQI
10th July 2025
59AQI
59AQI
11th July 2025
47AQI
47AQI
12th July 2025
50AQI
50AQI
13th July 2025
52AQI
52AQI
14th July 2025
38AQI
38AQI
15th July 2025
38AQI
38AQI
16th July 2025
40AQI
40AQI
17th July 2025
40AQI
40AQI
18th July 2025
37AQI
37AQI
19th July 2025
36AQI
36AQI
20th July 2025
37AQI
37AQI
21st July 2025
43AQI
43AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
45AQI
45AQI
24th July 2025
48AQI
48AQI
25th July 2025
48AQI
48AQI
26th July 2025
49AQI
49AQI
27th July 2025
47AQI
47AQI
28th July 2025
45AQI
45AQI
29th July 2025
44AQI
44AQI
30th July 2025
35AQI
35AQI
31st July 2025
35AQI
35AQI
1st August 2025
34AQI
34AQI
2nd August 2025
39AQI
39AQI
3rd August 2025
44AQI
44AQI
4th August 2025
55AQI
55AQI
5th August 2025
50AQI
50AQI
34AQI
34AQI
39AQI
22AQI
21AQI
30AQI
48AQI
44AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202533AQI
30
1
28
24
7
30
31
30
24
7
4
1
201
16
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
May21AQI
202436AQI
16
1
2
2
12
30
25
6
31
14
15
28
3
30
31
222
24
Highest AQI recorded in
September51AQI
Lowest AQI recorded in
January20AQI
202326AQI
3
31
34
Highest AQI recorded in
December27AQI
Lowest AQI recorded in
November18AQI
202144AQI
19
12
17
11
17
12
53
35
Highest AQI recorded in
January44AQI
Lowest AQI recorded in
February43AQI
202047AQI
8
5
17
4
14
4
20
10
24
7
14
17
17
2
19
12
8
13
1
2
1
142
76
1
Highest AQI recorded in
December69AQI
Lowest AQI recorded in
April37AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2020(Avg.)
47AQILeast Polluted Year Recorded
2023(Avg.)
26AQIChuocho's annual 2025 AQI (33) shows an average percentage change of -9.3% (improved AQI) compared to previous years: 2020 (47), 2021 (44), 2023 (26), 2024 (36).
