Ojima, Ichikawa, 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+
August Air Quality Analysis
Ojima, Ichikawa, Chiba, Japan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
58AQILowest AQI recorded on
30th Aug 2024
8AQISame Day Analysis (6th August ):
On this day, AQI across the 5 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: 6th Aug - 7th Aug 2025
Ojima, Ichikawa, Chiba, Japan
AQI
Day
Night
.
4 AM6th Aug 2025
6 PM
3 AM7th Aug 2025
Day time
Avg. Highest Time
5PM6th Aug
60AQI
Avg. Lowest Time
9AM6th Aug
51AQI
Night time
Avg. Highest Time
7PM6th Aug
60AQI
Avg. Lowest Time
1AM7th Aug
48AQI
In the last 24 hours,
Ojima's AQI reached its highest point of 60 at 5 PM during the Day, while the lowest point, 48, was recorded at 1 AM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Ojima, Ichikawa, Chiba, Japan
JulAug
08th - 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 - 07th07th
Day
Night
8th Jul 2025604 AMAQI
8th Jul 2025665 AMAQI
8th Jul 2025656 AMAQI
8th Jul 2025667 AMAQI
8th Jul 2025668 AMAQI
8th Jul 20251099 AMAQI
8th Jul 202512810 AMAQI
8th Jul 202512611 AMAQI
8th Jul 202510812 PMAQI
8th Jul 2025901 PMAQI
8th Jul 2025842 PMAQI
8th Jul 2025843 PMAQI
8th Jul 2025864 PMAQI
8th Jul 2025835 PMAQI
8th Jul 2025856 PMAQI
8th Jul 2025857 PMAQI
8th Jul 2025848 PMAQI
8th Jul 2025779 PMAQI
8th Jul 20257910 PMAQI
8th Jul 20258211 PMAQI
9th Jul 20258212 AMAQI
9th Jul 2025761 AMAQI
9th Jul 2025662 AMAQI
9th Jul 2025663 AMAQI
29°C27/32°C
9th Jul 2025684 AMAQI
9th Jul 2025725 AMAQI
9th Jul 2025726 AMAQI
9th Jul 2025737 AMAQI
9th Jul 2025748 AMAQI
9th Jul 2025889 AMAQI
9th Jul 20259610 AMAQI
9th Jul 20259411 AMAQI
9th Jul 20259812 PMAQI
9th Jul 2025971 PMAQI
9th Jul 2025982 PMAQI
9th Jul 20251033 PMAQI
9th Jul 20251044 PMAQI
9th Jul 2025995 PMAQI
9th Jul 2025886 PMAQI
9th Jul 2025667 PMAQI
9th Jul 2025608 PMAQI
9th Jul 2025669 PMAQI
9th Jul 20256510 PMAQI
9th Jul 20256511 PMAQI
10th Jul 20256512 AMAQI
10th Jul 2025691 AMAQI
10th Jul 2025732 AMAQI
10th Jul 2025733 AMAQI
29°C26/32°C
10th Jul 2025744 AMAQI
10th Jul 2025785 AMAQI
10th Jul 2025786 AMAQI
10th Jul 2025787 AMAQI
10th Jul 2025788 AMAQI
10th Jul 2025419 AMAQI
10th Jul 20253410 AMAQI
10th Jul 20254011 AMAQI
10th Jul 20254912 PMAQI
10th Jul 2025531 PMAQI
10th Jul 2025512 PMAQI
10th Jul 2025463 PMAQI
10th Jul 2025414 PMAQI
10th Jul 2025435 PMAQI
10th Jul 2025466 PMAQI
10th Jul 2025547 PMAQI
10th Jul 2025568 PMAQI
10th Jul 2025629 PMAQI
10th Jul 20256110 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20256012 AMAQI
11th Jul 2025651 AMAQI
11th Jul 2025702 AMAQI
11th Jul 2025703 AMAQI
28°C23/32°C
11th Jul 2025704 AMAQI
11th Jul 2025665 AMAQI
11th Jul 2025666 AMAQI
11th Jul 2025667 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025309 AMAQI
11th Jul 20251810 AMAQI
11th Jul 20252011 AMAQI
11th Jul 20252112 PMAQI
11th Jul 2025361 PMAQI
11th Jul 2025362 PMAQI
11th Jul 2025383 PMAQI
11th Jul 2025394 PMAQI
11th Jul 2025385 PMAQI
11th Jul 2025386 PMAQI
11th Jul 2025377 PMAQI
11th Jul 2025448 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255810 PMAQI
11th Jul 20255811 PMAQI
12th Jul 20255812 AMAQI
12th Jul 2025611 AMAQI
12th Jul 2025642 AMAQI
12th Jul 2025643 AMAQI
24°C22/26°C
12th Jul 2025644 AMAQI
12th Jul 2025615 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025617 AMAQI
12th Jul 2025618 AMAQI
12th Jul 2025429 AMAQI
12th Jul 20254310 AMAQI
12th Jul 20254411 AMAQI
12th Jul 20254212 PMAQI
12th Jul 2025471 PMAQI
12th Jul 2025482 PMAQI
12th Jul 2025483 PMAQI
12th Jul 2025464 PMAQI
12th Jul 2025475 PMAQI
12th Jul 2025466 PMAQI
12th Jul 2025437 PMAQI
12th Jul 2025448 PMAQI
12th Jul 2025569 PMAQI
12th Jul 20255610 PMAQI
12th Jul 20255611 PMAQI
13th Jul 20255612 AMAQI
13th Jul 2025581 AMAQI
13th Jul 2025602 AMAQI
13th Jul 2025603 AMAQI
24°C21/28°C
13th Jul 2025604 AMAQI
13th Jul 2025585 AMAQI
13th Jul 2025586 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025588 AMAQI
13th Jul 2025469 AMAQI
13th Jul 20253510 AMAQI
13th Jul 20254211 AMAQI
13th Jul 20254912 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025502 PMAQI
13th Jul 2025503 PMAQI
13th Jul 2025514 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025417 PMAQI
13th Jul 2025398 PMAQI
13th Jul 2025539 PMAQI
13th Jul 20255310 PMAQI
13th Jul 20255311 PMAQI
14th Jul 20255312 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI
26°C24/29°C
14th Jul 2025584 AMAQI
14th Jul 2025575 AMAQI
14th Jul 2025576 AMAQI
14th Jul 2025577 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025329 AMAQI
14th Jul 20251910 AMAQI
14th Jul 20252211 AMAQI
14th Jul 20252512 PMAQI
14th Jul 2025301 PMAQI
14th Jul 2025292 PMAQI
14th Jul 2025273 PMAQI
14th Jul 2025314 PMAQI
14th Jul 2025335 PMAQI
14th Jul 2025366 PMAQI
14th Jul 2025377 PMAQI
14th Jul 2025368 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20255112 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025553 AMAQI
26°C24/29°C
15th Jul 2025554 AMAQI
15th Jul 2025535 AMAQI
15th Jul 2025536 AMAQI
15th Jul 2025537 AMAQI
15th Jul 2025538 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252511 AMAQI
15th Jul 20252812 PMAQI
15th Jul 2025381 PMAQI
15th Jul 2025382 PMAQI
15th Jul 2025383 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025375 PMAQI
15th Jul 2025406 PMAQI
15th Jul 2025387 PMAQI
15th Jul 2025348 PMAQI
15th Jul 2025449 PMAQI
15th Jul 20254510 PMAQI
15th Jul 20254611 PMAQI
16th Jul 20255012 AMAQI
16th Jul 2025511 AMAQI
16th Jul 2025532 AMAQI
16th Jul 2025523 AMAQI
27°C26/28°C
16th Jul 2025524 AMAQI
16th Jul 2025505 AMAQI
16th Jul 2025516 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025508 AMAQI
16th Jul 2025489 AMAQI
16th Jul 20254110 AMAQI
16th Jul 20253711 AMAQI
16th Jul 20253512 PMAQI
16th Jul 2025331 PMAQI
16th Jul 2025302 PMAQI
16th Jul 2025323 PMAQI
16th Jul 2025324 PMAQI
16th Jul 2025345 PMAQI
16th Jul 2025306 PMAQI
16th Jul 2025287 PMAQI
16th Jul 2025348 PMAQI
16th Jul 2025449 PMAQI
16th Jul 20254410 PMAQI
16th Jul 20254411 PMAQI
17th Jul 20254412 AMAQI
17th Jul 2025491 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025513 AMAQI
27°C26/28°C
17th Jul 2025514 AMAQI
17th Jul 2025505 AMAQI
17th Jul 2025496 AMAQI
17th Jul 2025497 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025329 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20254611 AMAQI
17th Jul 20254812 PMAQI
17th Jul 2025431 PMAQI
17th Jul 2025452 PMAQI
17th Jul 2025443 PMAQI
17th Jul 2025454 PMAQI
17th Jul 2025485 PMAQI
17th Jul 2025486 PMAQI
17th Jul 2025487 PMAQI
17th Jul 2025488 PMAQI
17th Jul 2025469 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20254411 PMAQI
18th Jul 20254412 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025482 AMAQI
18th Jul 2025483 AMAQI
27°C26/30°C
18th Jul 2025484 AMAQI
18th Jul 2025485 AMAQI
18th Jul 2025476 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025468 AMAQI
18th Jul 2025389 AMAQI
18th Jul 20253710 AMAQI
18th Jul 20253911 AMAQI
18th Jul 20253312 PMAQI
18th Jul 2025291 PMAQI
18th Jul 2025302 PMAQI
18th Jul 2025363 PMAQI
18th Jul 2025354 PMAQI
18th Jul 2025295 PMAQI
18th Jul 2025316 PMAQI
18th Jul 2025307 PMAQI
18th Jul 2025358 PMAQI
18th Jul 2025419 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254211 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025441 AMAQI
19th Jul 2025472 AMAQI
19th Jul 2025463 AMAQI
27°C25/30°C
19th Jul 2025464 AMAQI
19th Jul 2025455 AMAQI
19th Jul 2025456 AMAQI
19th Jul 2025457 AMAQI
19th Jul 2025448 AMAQI
19th Jul 2025289 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20253012 PMAQI
19th Jul 2025301 PMAQI
19th Jul 2025302 PMAQI
19th Jul 2025283 PMAQI
19th Jul 2025284 PMAQI
19th Jul 2025265 PMAQI
19th Jul 2025306 PMAQI
19th Jul 2025307 PMAQI
19th Jul 2025328 PMAQI
19th Jul 2025389 PMAQI
19th Jul 20253810 PMAQI
19th Jul 20253711 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025381 AMAQI
20th Jul 2025422 AMAQI
20th Jul 2025433 AMAQI
28°C25/30°C
20th Jul 2025424 AMAQI
20th Jul 2025405 AMAQI
20th Jul 2025406 AMAQI
20th Jul 2025407 AMAQI
20th Jul 2025418 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20252110 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252612 PMAQI
20th Jul 2025281 PMAQI
20th Jul 2025272 PMAQI
20th Jul 2025273 PMAQI
20th Jul 2025264 PMAQI
20th Jul 2025285 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025327 PMAQI
20th Jul 2025368 PMAQI
20th Jul 2025379 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025361 AMAQI
21st Jul 2025382 AMAQI
21st Jul 2025393 AMAQI
28°C26/31°C
21st Jul 2025384 AMAQI
21st Jul 2025365 AMAQI
21st Jul 2025366 AMAQI
21st Jul 2025357 AMAQI
21st Jul 2025368 AMAQI
21st Jul 2025269 AMAQI
21st Jul 20252810 AMAQI
21st Jul 20253811 AMAQI
21st Jul 20253612 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025362 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025334 PMAQI
21st Jul 2025345 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025367 PMAQI
21st Jul 2025358 PMAQI
21st Jul 2025349 PMAQI
21st Jul 20253310 PMAQI
21st Jul 20253211 PMAQI
22nd Jul 20253212 AMAQI
22nd Jul 2025341 AMAQI
22nd Jul 2025362 AMAQI
22nd Jul 2025373 AMAQI
29°C27/32°C
22nd Jul 2025364 AMAQI
22nd Jul 2025365 AMAQI
22nd Jul 2025366 AMAQI
22nd Jul 2025367 AMAQI
22nd Jul 2025368 AMAQI
22nd Jul 2025299 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20253611 AMAQI
22nd Jul 20253812 PMAQI
22nd Jul 2025401 PMAQI
22nd Jul 2025402 PMAQI
22nd Jul 2025363 PMAQI
22nd Jul 2025364 PMAQI
22nd Jul 2025395 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025317 PMAQI
22nd Jul 2025308 PMAQI
22nd Jul 2025319 PMAQI
22nd Jul 20253310 PMAQI
22nd Jul 20253411 PMAQI
23rd Jul 20253212 AMAQI
23rd Jul 2025331 AMAQI
23rd Jul 2025352 AMAQI
23rd Jul 2025363 AMAQI
29°C27/31°C
23rd Jul 2025364 AMAQI
23rd Jul 2025365 AMAQI
23rd Jul 2025376 AMAQI
23rd Jul 2025367 AMAQI
23rd Jul 2025368 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20253210 AMAQI
23rd Jul 20254611 AMAQI
23rd Jul 20254612 PMAQI
23rd Jul 2025441 PMAQI
23rd Jul 2025482 PMAQI
23rd Jul 2025463 PMAQI
23rd Jul 2025434 PMAQI
23rd Jul 2025375 PMAQI
23rd Jul 2025346 PMAQI
23rd Jul 2025327 PMAQI
23rd Jul 2025308 PMAQI
23rd Jul 2025339 PMAQI
23rd Jul 20254010 PMAQI
23rd Jul 20253911 PMAQI
24th Jul 20253112 AMAQI
24th Jul 2025331 AMAQI
24th Jul 2025352 AMAQI
24th Jul 2025353 AMAQI
29°C26/31°C
24th Jul 2025364 AMAQI
24th Jul 2025365 AMAQI
24th Jul 2025376 AMAQI
24th Jul 2025367 AMAQI
24th Jul 2025368 AMAQI
24th Jul 2025399 AMAQI
24th Jul 20254810 AMAQI
24th Jul 20255411 AMAQI
24th Jul 20255512 PMAQI
24th Jul 2025541 PMAQI
24th Jul 2025592 PMAQI
24th Jul 2025583 PMAQI
24th Jul 2025504 PMAQI
24th Jul 2025395 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025347 PMAQI
24th Jul 2025308 PMAQI
24th Jul 2025339 PMAQI
24th Jul 20253410 PMAQI
24th Jul 20253611 PMAQI
25th Jul 20253612 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025352 AMAQI
25th Jul 2025353 AMAQI
29°C26/33°C
25th Jul 2025364 AMAQI
25th Jul 2025405 AMAQI
25th Jul 2025386 AMAQI
25th Jul 2025397 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025429 AMAQI
25th Jul 20255210 AMAQI
25th Jul 20255211 AMAQI
25th Jul 20255112 PMAQI
25th Jul 2025441 PMAQI
25th Jul 2025432 PMAQI
25th Jul 2025423 PMAQI
25th Jul 2025344 PMAQI
25th Jul 2025375 PMAQI
25th Jul 2025396 PMAQI
25th Jul 2025337 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025349 PMAQI
25th Jul 20253310 PMAQI
25th Jul 20253411 PMAQI
26th Jul 20253312 AMAQI
26th Jul 2025341 AMAQI
26th Jul 2025372 AMAQI
26th Jul 2025373 AMAQI
29°C27/32°C
26th Jul 2025384 AMAQI
26th Jul 2025395 AMAQI
26th Jul 2025406 AMAQI
26th Jul 2025407 AMAQI
26th Jul 2025388 AMAQI
26th Jul 2025309 AMAQI
26th Jul 20253710 AMAQI
26th Jul 20254411 AMAQI
26th Jul 20254312 PMAQI
26th Jul 2025381 PMAQI
26th Jul 2025402 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025295 PMAQI
26th Jul 2025316 PMAQI
26th Jul 2025347 PMAQI
26th Jul 2025348 PMAQI
26th Jul 2025369 PMAQI
26th Jul 20253310 PMAQI
26th Jul 20253311 PMAQI
27th Jul 20253312 AMAQI
27th Jul 2025341 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025363 AMAQI
29°C28/32°C
27th Jul 2025374 AMAQI
27th Jul 2025385 AMAQI
27th Jul 2025376 AMAQI
27th Jul 2025377 AMAQI
27th Jul 2025378 AMAQI
27th Jul 2025319 AMAQI
27th Jul 20253710 AMAQI
27th Jul 20254511 AMAQI
27th Jul 20253512 PMAQI
27th Jul 2025321 PMAQI
27th Jul 2025322 PMAQI
27th Jul 2025323 PMAQI
27th Jul 2025324 PMAQI
27th Jul 2025305 PMAQI
27th Jul 2025286 PMAQI
27th Jul 2025277 PMAQI
27th Jul 2025328 PMAQI
27th Jul 2025349 PMAQI
27th Jul 20253310 PMAQI
27th Jul 20253111 PMAQI
28th Jul 20253112 AMAQI
28th Jul 2025331 AMAQI
28th Jul 2025362 AMAQI
28th Jul 2025363 AMAQI
29°C27/32°C
28th Jul 2025364 AMAQI
28th Jul 2025375 AMAQI
28th Jul 2025366 AMAQI
28th Jul 2025367 AMAQI
28th Jul 2025368 AMAQI
28th Jul 2025309 AMAQI
28th Jul 20253410 AMAQI
28th Jul 20254011 AMAQI
28th Jul 20254112 PMAQI
28th Jul 2025491 PMAQI
28th Jul 2025512 PMAQI
28th Jul 2025523 PMAQI
28th Jul 2025504 PMAQI
28th Jul 2025435 PMAQI
28th Jul 2025406 PMAQI
28th Jul 2025367 PMAQI
28th Jul 2025348 PMAQI
28th Jul 2025369 PMAQI
28th Jul 20253610 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253212 AMAQI
29th Jul 2025331 AMAQI
29th Jul 2025342 AMAQI
29th Jul 2025343 AMAQI
29°C27/33°C
29th Jul 2025364 AMAQI
29th Jul 2025385 AMAQI
29th Jul 2025376 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025329 AMAQI
29th Jul 20253410 AMAQI
29th Jul 20254011 AMAQI
29th Jul 20254312 PMAQI
29th Jul 2025501 PMAQI
29th Jul 2025532 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025474 PMAQI
29th Jul 2025385 PMAQI
29th Jul 2025316 PMAQI
29th Jul 2025277 PMAQI
29th Jul 2025278 PMAQI
29th Jul 2025309 PMAQI
29th Jul 20252910 PMAQI
29th Jul 20252911 PMAQI
30th Jul 20252912 AMAQI
30th Jul 2025321 AMAQI
30th Jul 2025342 AMAQI
30th Jul 2025343 AMAQI
30°C26/35°C
30th Jul 2025364 AMAQI
30th Jul 2025365 AMAQI
30th Jul 2025366 AMAQI
30th Jul 2025377 AMAQI
30th Jul 2025378 AMAQI
30th Jul 2025229 AMAQI
30th Jul 20252010 AMAQI
30th Jul 20252211 AMAQI
30th Jul 20252712 PMAQI
30th Jul 2025301 PMAQI
30th Jul 2025322 PMAQI
30th Jul 2025273 PMAQI
30th Jul 2025284 PMAQI
30th Jul 2025265 PMAQI
30th Jul 2025266 PMAQI
30th Jul 2025327 PMAQI
30th Jul 2025348 PMAQI
30th Jul 2025349 PMAQI
30th Jul 20253410 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20253412 AMAQI
31st Jul 2025341 AMAQI
31st Jul 2025342 AMAQI
31st Jul 2025333 AMAQI
29°C26/34°C
31st Jul 2025334 AMAQI
31st Jul 2025335 AMAQI
31st Jul 2025336 AMAQI
31st Jul 2025337 AMAQI
31st Jul 2025338 AMAQI
31st Jul 2025339 AMAQI
31st Jul 20253310 AMAQI
31st Jul 20254111 AMAQI
31st Jul 20254212 PMAQI
31st Jul 2025381 PMAQI
31st Jul 2025332 PMAQI
31st Jul 2025243 PMAQI
31st Jul 2025244 PMAQI
31st Jul 2025265 PMAQI
31st Jul 2025206 PMAQI
31st Jul 2025197 PMAQI
31st Jul 2025258 PMAQI
31st Jul 2025309 PMAQI
31st Jul 20253110 PMAQI
31st Jul 20253111 PMAQI
1st Aug 20252712 AMAQI
1st Aug 2025301 AMAQI
1st Aug 2025342 AMAQI
1st Aug 2025373 AMAQI
28°C25/32°C
1st Aug 2025354 AMAQI
1st Aug 2025355 AMAQI
1st Aug 2025366 AMAQI
1st Aug 2025377 AMAQI
1st Aug 2025378 AMAQI
1st Aug 2025389 AMAQI
1st Aug 20253210 AMAQI
1st Aug 20254511 AMAQI
1st Aug 20254012 PMAQI
1st Aug 2025381 PMAQI
1st Aug 2025352 PMAQI
1st Aug 2025443 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025405 PMAQI
1st Aug 2025556 PMAQI
1st Aug 2025327 PMAQI
1st Aug 2025408 PMAQI
1st Aug 2025349 PMAQI
1st Aug 20253310 PMAQI
1st Aug 20252811 PMAQI
2nd Aug 20252912 AMAQI
2nd Aug 2025291 AMAQI
2nd Aug 2025362 AMAQI
2nd Aug 2025363 AMAQI
28°C25/31°C
2nd Aug 2025374 AMAQI
2nd Aug 2025405 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025387 AMAQI
2nd Aug 2025408 AMAQI
2nd Aug 2025389 AMAQI
2nd Aug 20253010 AMAQI
2nd Aug 20254411 AMAQI
2nd Aug 20254412 PMAQI
2nd Aug 2025561 PMAQI
2nd Aug 2025612 PMAQI
2nd Aug 2025743 PMAQI
2nd Aug 2025624 PMAQI
2nd Aug 2025605 PMAQI
2nd Aug 2025586 PMAQI
2nd Aug 2025577 PMAQI
2nd Aug 2025438 PMAQI
2nd Aug 2025369 PMAQI
2nd Aug 20253510 PMAQI
2nd Aug 20254211 PMAQI
3rd Aug 20253512 AMAQI
3rd Aug 2025351 AMAQI
3rd Aug 2025372 AMAQI
3rd Aug 2025373 AMAQI
29°C26/33°C
3rd Aug 2025404 AMAQI
3rd Aug 2025405 AMAQI
3rd Aug 2025396 AMAQI
3rd Aug 2025407 AMAQI
3rd Aug 2025388 AMAQI
3rd Aug 2025499 AMAQI
3rd Aug 20255410 AMAQI
3rd Aug 20255611 AMAQI
3rd Aug 20256312 PMAQI
3rd Aug 2025511 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025524 PMAQI
3rd Aug 2025495 PMAQI
3rd Aug 2025476 PMAQI
3rd Aug 2025457 PMAQI
3rd Aug 2025448 PMAQI
3rd Aug 2025429 PMAQI
3rd Aug 20254210 PMAQI
3rd Aug 20254011 PMAQI
4th Aug 20254012 AMAQI
4th Aug 2025381 AMAQI
4th Aug 2025382 AMAQI
4th Aug 2025393 AMAQI
30°C27/35°C
4th Aug 2025404 AMAQI
4th Aug 2025435 AMAQI
4th Aug 2025426 AMAQI
4th Aug 2025427 AMAQI
4th Aug 2025438 AMAQI
4th Aug 2025639 AMAQI
4th Aug 20257510 AMAQI
4th Aug 20258311 AMAQI
4th Aug 20258212 PMAQI
4th Aug 2025881 PMAQI
4th Aug 2025882 PMAQI
4th Aug 2025843 PMAQI
4th Aug 2025864 PMAQI
4th Aug 2025895 PMAQI
4th Aug 2025906 PMAQI
4th Aug 2025797 PMAQI
4th Aug 2025668 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20254611 PMAQI
5th Aug 20255912 AMAQI
5th Aug 2025421 AMAQI
5th Aug 2025422 AMAQI
5th Aug 2025403 AMAQI
30°C28/33°C
5th Aug 2025504 AMAQI
5th Aug 2025545 AMAQI
5th Aug 2025536 AMAQI
5th Aug 2025517 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025539 AMAQI
5th Aug 20256310 AMAQI
5th Aug 20255811 AMAQI
5th Aug 20256412 PMAQI
5th Aug 2025561 PMAQI
5th Aug 2025522 PMAQI
5th Aug 2025533 PMAQI
5th Aug 2025594 PMAQI
5th Aug 2025505 PMAQI
5th Aug 2025536 PMAQI
5th Aug 2025467 PMAQI
5th Aug 2025478 PMAQI
5th Aug 2025489 PMAQI
5th Aug 20254510 PMAQI
5th Aug 20254111 PMAQI
6th Aug 20254512 AMAQI
6th Aug 2025481 AMAQI
6th Aug 2025492 AMAQI
6th Aug 2025483 AMAQI
31°C28/34°C
6th Aug 2025524 AMAQI
6th Aug 2025525 AMAQI
6th Aug 2025526 AMAQI
6th Aug 2025527 AMAQI
6th Aug 2025528 AMAQI
6th Aug 2025519 AMAQI
6th Aug 20255810 AMAQI
6th Aug 20255811 AMAQI
6th Aug 20255812 PMAQI
6th Aug 2025571 PMAQI
6th Aug 2025562 PMAQI
6th Aug 2025523 PMAQI
6th Aug 2025544 PMAQI
6th Aug 2025605 PMAQI
6th Aug 2025586 PMAQI
6th Aug 2025607 PMAQI
6th Aug 2025578 PMAQI
6th Aug 2025519 PMAQI
6th Aug 20255210 PMAQI
6th Aug 20255011 PMAQI
7th Aug 20254812 AMAQI
7th Aug 2025481 AMAQI
7th Aug 2025512 AMAQI
7th Aug 2025513 AMAQI
31°C28/35°C
7th Aug 2025524 AMAQI
4 AM7th Aug 2025515 AMAQI
7th Aug 2025516 AMAQI
7th Aug 2025467 AMAQI
7th Aug 2025508 AMAQI
7th Aug 2025509 AMAQI
7th Aug 20254910 AMAQI
7th Aug 20254511 AMAQI
11 AM7th Aug 20253312 PMAQI
7th Aug 2025361 PMAQI
7th Aug 2025422 PMAQI
7th Aug 2025483 PMAQI
7th Aug 2025584 PMAQI
6 PM
11 PM
3 AM
--°C/°C
Day time
Avg. Highest Time
4 AM - 8 AM
47AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 AM - 10 AM
42AQI
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. 47), while the lowest AQI was between 9 AM to 10 AM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 3 AM
45AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM - 8 PM
41AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 45), while the lowest AQI was between 7 PM to 8 PM (Avg. 41).
2025 Days Vs Air Quality
Ojima, Ichikawa, Chiba, Japan
2025
94%
206
6%
12
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Good
206 DaysModerate
12 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2025, 94% of 219 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
Ojima, Ichikawa, Chiba, 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
27AQI
27AQI
2nd January 2025
27AQI
27AQI
3rd January 2025
24AQI
24AQI
4th January 2025
26AQI
26AQI
5th January 2025
25AQI
25AQI
6th January 2025
30AQI
30AQI
7th January 2025
27AQI
27AQI
8th January 2025
25AQI
25AQI
9th January 2025
24AQI
24AQI
10th January 2025
25AQI
25AQI
11th January 2025
24AQI
24AQI
12th January 2025
27AQI
27AQI
13th January 2025
28AQI
28AQI
14th January 2025
27AQI
27AQI
15th January 2025
32AQI
32AQI
16th January 2025
25AQI
25AQI
17th January 2025
29AQI
29AQI
18th January 2025
26AQI
26AQI
19th January 2025
32AQI
32AQI
20th January 2025
31AQI
31AQI
21st January 2025
32AQI
32AQI
22nd January 2025
33AQI
33AQI
23rd January 2025
33AQI
33AQI
24th January 2025
36AQI
36AQI
25th January 2025
33AQI
33AQI
26th January 2025
32AQI
32AQI
27th January 2025
26AQI
26AQI
28th January 2025
30AQI
30AQI
29th January 2025
26AQI
26AQI
30th January 2025
27AQI
27AQI
31st January 2025
27AQI
27AQI
1st February 2025
28AQI
28AQI
2nd February 2025
30AQI
30AQI
3rd February 2025
25AQI
25AQI
4th February 2025
30AQI
30AQI
5th February 2025
27AQI
27AQI
6th February 2025
27AQI
27AQI
7th February 2025
27AQI
27AQI
8th February 2025
29AQI
29AQI
9th February 2025
29AQI
29AQI
10th February 2025
25AQI
25AQI
11th February 2025
31AQI
31AQI
12th February 2025
27AQI
27AQI
13th February 2025
31AQI
31AQI
14th February 2025
26AQI
26AQI
15th February 2025
30AQI
30AQI
16th February 2025
33AQI
33AQI
17th February 2025
33AQI
33AQI
18th February 2025
30AQI
30AQI
19th February 2025
30AQI
30AQI
20th February 2025
30AQI
30AQI
21st February 2025
29AQI
29AQI
22nd February 2025
31AQI
31AQI
23rd February 2025
32AQI
32AQI
24th February 2025
33AQI
33AQI
25th February 2025
31AQI
31AQI
26th February 2025
34AQI
34AQI
27th February 2025
36AQI
36AQI
28th February 2025
39AQI
39AQI
1st March 2025
43AQI
43AQI
2nd March 2025
47AQI
47AQI
3rd March 2025
35AQI
35AQI
4th March 2025
33AQI
33AQI
5th March 2025
25AQI
25AQI
6th March 2025
30AQI
30AQI
7th March 2025
31AQI
31AQI
8th March 2025
33AQI
33AQI
9th March 2025
35AQI
35AQI
10th March 2025
33AQI
33AQI
11th March 2025
30AQI
30AQI
12th March 2025
35AQI
35AQI
13th March 2025
33AQI
33AQI
14th March 2025
28AQI
28AQI
15th March 2025
22AQI
22AQI
16th March 2025
19AQI
19AQI
17th March 2025
16AQI
16AQI
18th March 2025
17AQI
17AQI
19th March 2025
14AQI
14AQI
20th March 2025
16AQI
16AQI
21st March 2025
25AQI
25AQI
22nd March 2025
27AQI
27AQI
23rd March 2025
28AQI
28AQI
24th March 2025
26AQI
26AQI
25th March 2025
46AQI
46AQI
26th March 2025
62AQI
62AQI
27th March 2025
58AQI
58AQI
28th March 2025
40AQI
40AQI
29th March 2025
32AQI
32AQI
30th March 2025
41AQI
41AQI
31st March 2025
31AQI
31AQI
1st April 2025
25AQI
25AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
17AQI
17AQI
4th April 2025
18AQI
18AQI
5th April 2025
19AQI
19AQI
6th April 2025
16AQI
16AQI
7th April 2025
17AQI
17AQI
8th April 2025
18AQI
18AQI
9th April 2025
18AQI
18AQI
10th April 2025
23AQI
23AQI
11th April 2025
24AQI
24AQI
12th April 2025
21AQI
21AQI
13th April 2025
19AQI
19AQI
14th April 2025
24AQI
24AQI
15th April 2025
21AQI
21AQI
16th April 2025
19AQI
19AQI
17th April 2025
26AQI
26AQI
18th April 2025
29AQI
29AQI
19th April 2025
36AQI
36AQI
20th April 2025
26AQI
26AQI
21st April 2025
24AQI
24AQI
22nd April 2025
23AQI
23AQI
23rd April 2025
16AQI
16AQI
24th April 2025
20AQI
20AQI
25th April 2025
19AQI
19AQI
26th April 2025
21AQI
21AQI
27th April 2025
22AQI
22AQI
28th April 2025
21AQI
21AQI
29th April 2025
15AQI
15AQI
30th April 2025
20AQI
20AQI
1st May 2025
19AQI
19AQI
2nd May 2025
17AQI
17AQI
3rd May 2025
20AQI
20AQI
4th May 2025
24AQI
24AQI
5th May 2025
20AQI
20AQI
6th May 2025
18AQI
18AQI
7th May 2025
16AQI
16AQI
8th May 2025
18AQI
18AQI
9th May 2025
18AQI
18AQI
10th May 2025
16AQI
16AQI
11th May 2025
18AQI
18AQI
12th May 2025
16AQI
16AQI
13th May 2025
20AQI
20AQI
14th May 2025
20AQI
20AQI
15th May 2025
21AQI
21AQI
16th May 2025
23AQI
23AQI
17th May 2025
20AQI
20AQI
18th May 2025
27AQI
27AQI
19th May 2025
27AQI
27AQI
20th May 2025
40AQI
40AQI
21st May 2025
33AQI
33AQI
22nd May 2025
28AQI
28AQI
23rd May 2025
24AQI
24AQI
24th May 2025
23AQI
23AQI
25th May 2025
18AQI
18AQI
26th May 2025
18AQI
18AQI
27th May 2025
17AQI
17AQI
28th May 2025
16AQI
16AQI
29th May 2025
18AQI
18AQI
30th May 2025
17AQI
17AQI
31st May 2025
13AQI
13AQI
1st June 2025
15AQI
15AQI
2nd June 2025
19AQI
19AQI
3rd June 2025
18AQI
18AQI
4th June 2025
19AQI
19AQI
5th June 2025
23AQI
23AQI
6th June 2025
29AQI
29AQI
7th June 2025
27AQI
27AQI
8th June 2025
32AQI
32AQI
9th June 2025
25AQI
25AQI
10th June 2025
25AQI
25AQI
11th June 2025
23AQI
23AQI
12th June 2025
24AQI
24AQI
13th June 2025
22AQI
22AQI
14th June 2025
19AQI
19AQI
15th June 2025
22AQI
22AQI
16th June 2025
25AQI
25AQI
17th June 2025
33AQI
33AQI
18th June 2025
29AQI
29AQI
19th June 2025
30AQI
30AQI
20th June 2025
27AQI
27AQI
21st June 2025
22AQI
22AQI
22nd June 2025
10AQI
10AQI
23rd June 2025
13AQI
13AQI
24th June 2025
15AQI
15AQI
25th June 2025
15AQI
15AQI
26th June 2025
16AQI
16AQI
27th June 2025
20AQI
20AQI
28th June 2025
19AQI
19AQI
29th June 2025
21AQI
21AQI
30th June 2025
33AQI
33AQI
1st July 2025
36AQI
36AQI
2nd July 2025
40AQI
40AQI
3rd July 2025
44AQI
44AQI
4th July 2025
43AQI
43AQI
5th July 2025
48AQI
48AQI
6th July 2025
64AQI
64AQI
7th July 2025
78AQI
78AQI
8th July 2025
80AQI
80AQI
9th July 2025
79AQI
79AQI
10th July 2025
60AQI
60AQI
11th July 2025
51AQI
51AQI
12th July 2025
54AQI
54AQI
13th July 2025
53AQI
53AQI
14th July 2025
45AQI
45AQI
15th July 2025
45AQI
45AQI
16th July 2025
43AQI
43AQI
17th July 2025
46AQI
46AQI
18th July 2025
41AQI
41AQI
19th July 2025
37AQI
37AQI
20th July 2025
34AQI
34AQI
21st July 2025
35AQI
35AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
36AQI
36AQI
24th July 2025
38AQI
38AQI
25th July 2025
38AQI
38AQI
26th July 2025
36AQI
36AQI
27th July 2025
34AQI
34AQI
28th July 2025
37AQI
37AQI
29th July 2025
35AQI
35AQI
30th July 2025
31AQI
31AQI
31st July 2025
32AQI
32AQI
1st August 2025
35AQI
35AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
44AQI
44AQI
4th August 2025
58AQI
58AQI
5th August 2025
51AQI
51AQI
6th August 2025
50AQI
50AQI
28AQI
30AQI
32AQI
21AQI
21AQI
22AQI
45AQI
47AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202529AQI
31
28
29
2
30
31
30
23
8
4
2
206
12
Highest AQI recorded in
August47AQI
Lowest AQI recorded in
May21AQI
202431AQI
27
4
29
31
29
1
30
1
30
25
6
31
30
31
29
1
31
353
13
Highest AQI recorded in
July40AQI
Lowest AQI recorded in
August23AQI
202330AQI
31
28
27
4
25
5
29
2
28
2
31
31
30
31
28
1
31
350
14
Highest AQI recorded in
April41AQI
Lowest AQI recorded in
August16AQI
202230AQI
30
20
1
30
1
28
1
30
1
29
1
20
1
1
28
31
30
29
2
306
8
Highest AQI recorded in
May35AQI
Lowest AQI recorded in
August23AQI
202121AQI
31
28
30
1
30
30
1
30
30
1
29
2
30
30
1
30
30
1
358
7
Highest AQI recorded in
June31AQI
Lowest AQI recorded in
January12AQI
202015AQI
13
21
18
30
31
31
19
31
29
1
31
254
1
Highest AQI recorded in
August25AQI
Lowest AQI recorded in
April10AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2024(Avg.)
31AQILeast Polluted Year Recorded
2020(Avg.)
15AQIOjima's annual 2025 AQI (29) shows an average percentage change of 23.2% (worsened AQI) compared to previous years: 2020 (15), 2021 (21), 2022 (30), 2023 (30), 2024 (31).
