Shimoiino, Futtsu, 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
Shimoiino, Futtsu, Chiba, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
63AQILowest AQI recorded on
25th Aug 2023
10AQISame Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 25 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 14th Aug - 15th Aug 2026
Shimoiino, Futtsu, Chiba, Japan
AQI
Day
Night
.
4 AM14th Aug 2026
6 PM
3 AM15th Aug 2026
Day time
Avg. Highest Time
6AM14th Aug
29AQI
Avg. Lowest Time
5PM14th Aug
21AQI
Night time
Avg. Highest Time
11PM14th Aug
25AQI
Avg. Lowest Time
10PM14th Aug
21AQI
In the last 24 hours,
Shimoiino's AQI reached its highest point of 29 at 6 AM during the Day, while the lowest point, 21, was recorded at 10 PM during the Night between 14th Aug and 15th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Shimoiino, Futtsu, Chiba, Japan
JulAug
17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
17th Jul 2026604 AMAQI
17th Jul 2026625 AMAQI
17th Jul 2026606 AMAQI
17th Jul 2026597 AMAQI
17th Jul 2026638 AMAQI
17th Jul 2026629 AMAQI
17th Jul 20266210 AMAQI
17th Jul 20266711 AMAQI
17th Jul 20266412 PMAQI
17th Jul 2026491 PMAQI
17th Jul 2026332 PMAQI
17th Jul 2026443 PMAQI
17th Jul 2026484 PMAQI
17th Jul 2026495 PMAQI
17th Jul 2026526 PMAQI
17th Jul 2026517 PMAQI
17th Jul 2026508 PMAQI
17th Jul 2026519 PMAQI
17th Jul 20264810 PMAQI
17th Jul 20264611 PMAQI
18th Jul 20264412 AMAQI
18th Jul 2026401 AMAQI
18th Jul 2026362 AMAQI
18th Jul 2026363 AMAQI
26°C24/28°C
18th Jul 2026294 AMAQI
18th Jul 2026275 AMAQI
18th Jul 2026216 AMAQI
18th Jul 2026177 AMAQI
18th Jul 2026198 AMAQI
18th Jul 2026179 AMAQI
18th Jul 20261210 AMAQI
18th Jul 2026811 AMAQI
18th Jul 20261212 PMAQI
18th Jul 202681 PMAQI
18th Jul 2026122 PMAQI
18th Jul 2026123 PMAQI
18th Jul 202684 PMAQI
18th Jul 202685 PMAQI
18th Jul 202686 PMAQI
18th Jul 202687 PMAQI
18th Jul 202668 PMAQI
18th Jul 202679 PMAQI
18th Jul 2026810 PMAQI
18th Jul 2026811 PMAQI
19th Jul 2026812 AMAQI
19th Jul 202681 AMAQI
19th Jul 202662 AMAQI
19th Jul 202683 AMAQI
25°C24/28°C
19th Jul 2026164 AMAQI
19th Jul 202675 AMAQI
19th Jul 202686 AMAQI
19th Jul 2026107 AMAQI
19th Jul 2026138 AMAQI
19th Jul 2026149 AMAQI
19th Jul 2026810 AMAQI
19th Jul 2026811 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026255 PMAQI
19th Jul 2026256 PMAQI
19th Jul 2026237 PMAQI
19th Jul 2026218 PMAQI
19th Jul 2026239 PMAQI
19th Jul 20263310 PMAQI
19th Jul 20262911 PMAQI
20th Jul 20262512 AMAQI
20th Jul 2026271 AMAQI
20th Jul 2026272 AMAQI
20th Jul 2026253 AMAQI
26°C23/27°C
20th Jul 2026274 AMAQI
20th Jul 2026295 AMAQI
20th Jul 2026296 AMAQI
20th Jul 2026297 AMAQI
20th Jul 2026318 AMAQI
20th Jul 2026339 AMAQI
20th Jul 20262910 AMAQI
20th Jul 20264011 AMAQI
20th Jul 20264012 PMAQI
20th Jul 2026421 PMAQI
20th Jul 2026232 PMAQI
20th Jul 2026273 PMAQI
20th Jul 2026294 PMAQI
20th Jul 2026255 PMAQI
20th Jul 2026256 PMAQI
20th Jul 2026257 PMAQI
20th Jul 2026258 PMAQI
20th Jul 2026259 PMAQI
20th Jul 20262310 PMAQI
20th Jul 20262511 PMAQI
21st Jul 20264612 AMAQI
21st Jul 2026481 AMAQI
21st Jul 2026462 AMAQI
21st Jul 2026383 AMAQI
27°C24/29°C
21st Jul 2026254 AMAQI
21st Jul 2026325 AMAQI
21st Jul 2026406 AMAQI
21st Jul 2026407 AMAQI
21st Jul 2026408 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20263810 AMAQI
21st Jul 20264411 AMAQI
21st Jul 2026531 PMAQI
21st Jul 2026532 PMAQI
21st Jul 2026503 PMAQI
21st Jul 2026484 PMAQI
21st Jul 2026445 PMAQI
21st Jul 2026466 PMAQI
21st Jul 2026907 PMAQI
21st Jul 2026448 PMAQI
21st Jul 2026469 PMAQI
21st Jul 20265110 PMAQI
21st Jul 20265111 PMAQI
22nd Jul 20265012 AMAQI
22nd Jul 2026521 AMAQI
22nd Jul 2026522 AMAQI
22nd Jul 2026543 AMAQI
27°C25/30°C
22nd Jul 2026534 AMAQI
22nd Jul 2026555 AMAQI
22nd Jul 2026566 AMAQI
22nd Jul 2026547 AMAQI
22nd Jul 2026568 AMAQI
22nd Jul 2026559 AMAQI
22nd Jul 20266210 AMAQI
22nd Jul 20266411 AMAQI
22nd Jul 20266212 PMAQI
22nd Jul 2026621 PMAQI
22nd Jul 2026572 PMAQI
22nd Jul 2026593 PMAQI
22nd Jul 2026574 PMAQI
22nd Jul 2026645 PMAQI
22nd Jul 2026646 PMAQI
22nd Jul 2026647 PMAQI
22nd Jul 2026668 PMAQI
22nd Jul 2026669 PMAQI
22nd Jul 20266810 PMAQI
22nd Jul 20266611 PMAQI
23rd Jul 20266012 AMAQI
23rd Jul 2026561 AMAQI
23rd Jul 2026562 AMAQI
23rd Jul 2026563 AMAQI
27°C25/30°C
23rd Jul 2026554 AMAQI
23rd Jul 2026545 AMAQI
23rd Jul 2026546 AMAQI
23rd Jul 2026557 AMAQI
23rd Jul 2026578 AMAQI
23rd Jul 2026679 AMAQI
23rd Jul 20267210 AMAQI
23rd Jul 20267611 AMAQI
23rd Jul 20268212 PMAQI
23rd Jul 2026821 PMAQI
23rd Jul 2026692 PMAQI
23rd Jul 2026633 PMAQI
23rd Jul 2026604 PMAQI
23rd Jul 2026575 PMAQI
23rd Jul 2026516 PMAQI
23rd Jul 2026527 PMAQI
23rd Jul 2026338 PMAQI
23rd Jul 2026309 PMAQI
23rd Jul 20262210 PMAQI
23rd Jul 20262911 PMAQI
24th Jul 20263612 AMAQI
24th Jul 2026361 AMAQI
24th Jul 2026212 AMAQI
24th Jul 2026173 AMAQI
28°C25/33°C
24th Jul 2026214 AMAQI
24th Jul 2026175 AMAQI
24th Jul 2026236 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026298 AMAQI
24th Jul 2026339 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20264411 AMAQI
24th Jul 20265512 PMAQI
24th Jul 2026521 PMAQI
24th Jul 2026482 PMAQI
24th Jul 2026463 PMAQI
24th Jul 2026364 PMAQI
24th Jul 2026335 PMAQI
24th Jul 2026336 PMAQI
24th Jul 2026347 PMAQI
24th Jul 2026338 PMAQI
24th Jul 2026449 PMAQI
24th Jul 20263610 PMAQI
24th Jul 20265011 PMAQI
25th Jul 20264912 AMAQI
25th Jul 2026461 AMAQI
25th Jul 2026522 AMAQI
25th Jul 2026333 AMAQI
27°C25/29°C
25th Jul 2026484 AMAQI
25th Jul 2026465 AMAQI
25th Jul 2026526 AMAQI
25th Jul 2026547 AMAQI
25th Jul 2026608 AMAQI
25th Jul 2026659 AMAQI
25th Jul 20266610 AMAQI
25th Jul 20266411 AMAQI
25th Jul 20265812 PMAQI
25th Jul 2026591 PMAQI
25th Jul 2026662 PMAQI
25th Jul 2026603 PMAQI
25th Jul 2026634 PMAQI
25th Jul 2026655 PMAQI
25th Jul 2026626 PMAQI
25th Jul 2026537 PMAQI
25th Jul 2026388 PMAQI
25th Jul 2026239 PMAQI
25th Jul 20262110 PMAQI
25th Jul 20262311 PMAQI
26th Jul 20262512 AMAQI
26th Jul 2026211 AMAQI
26th Jul 2026232 AMAQI
26th Jul 2026253 AMAQI
27°C23/30°C
26th Jul 2026214 AMAQI
26th Jul 2026215 AMAQI
26th Jul 2026216 AMAQI
26th Jul 2026217 AMAQI
26th Jul 2026218 AMAQI
26th Jul 2026219 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262511 AMAQI
26th Jul 2026812 PMAQI
26th Jul 2026331 PMAQI
26th Jul 2026382 PMAQI
26th Jul 2026383 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026336 PMAQI
26th Jul 2026277 PMAQI
26th Jul 2026238 PMAQI
26th Jul 2026199 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20262311 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026292 AMAQI
27th Jul 2026293 AMAQI
26°C24/28°C
27th Jul 2026424 AMAQI
27th Jul 2026325 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026239 AMAQI
27th Jul 20262110 AMAQI
27th Jul 20262711 AMAQI
27th Jul 20262912 PMAQI
27th Jul 2026291 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026234 PMAQI
27th Jul 2026235 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026239 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262311 PMAQI
28th Jul 20262712 AMAQI
28th Jul 2026361 AMAQI
28th Jul 2026342 AMAQI
28th Jul 2026253 AMAQI
25°C23/28°C
28th Jul 2026254 AMAQI
28th Jul 2026295 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026278 AMAQI
28th Jul 2026279 AMAQI
28th Jul 20262310 AMAQI
28th Jul 20262711 AMAQI
28th Jul 20265012 PMAQI
28th Jul 2026491 PMAQI
28th Jul 2026522 PMAQI
28th Jul 2026273 PMAQI
28th Jul 2026404 PMAQI
28th Jul 2026445 PMAQI
28th Jul 2026346 PMAQI
28th Jul 2026277 PMAQI
28th Jul 2026278 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20262310 PMAQI
28th Jul 20262311 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026271 AMAQI
29th Jul 2026252 AMAQI
29th Jul 2026303 AMAQI
25°C22/27°C
29th Jul 2026404 AMAQI
29th Jul 2026385 AMAQI
29th Jul 2026296 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026328 AMAQI
29th Jul 2026449 AMAQI
29th Jul 20263610 AMAQI
29th Jul 20262911 AMAQI
29th Jul 20263112 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026332 PMAQI
29th Jul 2026333 PMAQI
29th Jul 2026274 PMAQI
29th Jul 2026335 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026217 PMAQI
29th Jul 2026218 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20265111 PMAQI
30th Jul 20265112 AMAQI
30th Jul 2026501 AMAQI
30th Jul 2026502 AMAQI
30th Jul 2026513 AMAQI
27°C24/30°C
30th Jul 2026524 AMAQI
30th Jul 2026505 AMAQI
30th Jul 2026406 AMAQI
30th Jul 2026277 AMAQI
30th Jul 2026318 AMAQI
30th Jul 2026279 AMAQI
30th Jul 20262710 AMAQI
30th Jul 20262911 AMAQI
30th Jul 20262912 PMAQI
30th Jul 2026291 PMAQI
30th Jul 2026252 PMAQI
30th Jul 2026243 PMAQI
30th Jul 2026324 PMAQI
30th Jul 2026515 PMAQI
30th Jul 2026466 PMAQI
30th Jul 2026517 PMAQI
30th Jul 2026548 PMAQI
30th Jul 2026519 PMAQI
30th Jul 20265010 PMAQI
30th Jul 20265111 PMAQI
31st Jul 20265512 AMAQI
31st Jul 2026571 AMAQI
31st Jul 2026522 AMAQI
31st Jul 2026523 AMAQI
27°C25/30°C
31st Jul 2026464 AMAQI
31st Jul 2026445 AMAQI
31st Jul 2026426 AMAQI
31st Jul 2026407 AMAQI
31st Jul 2026448 AMAQI
31st Jul 2026469 AMAQI
31st Jul 20264910 AMAQI
31st Jul 20265411 AMAQI
31st Jul 20265712 PMAQI
31st Jul 2026571 PMAQI
31st Jul 2026542 PMAQI
31st Jul 2026683 PMAQI
31st Jul 2026504 PMAQI
31st Jul 2026795 PMAQI
31st Jul 2026746 PMAQI
31st Jul 2026737 PMAQI
31st Jul 2026698 PMAQI
31st Jul 2026429 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20264611 PMAQI
1st Aug 20264812 AMAQI
1st Aug 2026581 AMAQI
1st Aug 2026522 AMAQI
1st Aug 2026563 AMAQI
28°C26/31°C
1st Aug 2026564 AMAQI
1st Aug 2026555 AMAQI
1st Aug 2026606 AMAQI
1st Aug 2026547 AMAQI
1st Aug 2026568 AMAQI
1st Aug 2026669 AMAQI
1st Aug 20267110 AMAQI
1st Aug 20266811 AMAQI
1st Aug 20266812 PMAQI
1st Aug 2026731 PMAQI
1st Aug 2026742 PMAQI
1st Aug 2026853 PMAQI
1st Aug 2026694 PMAQI
1st Aug 2026715 PMAQI
1st Aug 2026576 PMAQI
1st Aug 2026537 PMAQI
1st Aug 2026548 PMAQI
1st Aug 2026529 PMAQI
1st Aug 20265510 PMAQI
1st Aug 20265611 PMAQI
2nd Aug 20266012 AMAQI
2nd Aug 2026631 AMAQI
2nd Aug 2026582 AMAQI
2nd Aug 2026583 AMAQI
28°C25/31°C
2nd Aug 2026604 AMAQI
2nd Aug 2026635 AMAQI
2nd Aug 2026626 AMAQI
2nd Aug 2026607 AMAQI
2nd Aug 2026608 AMAQI
2nd Aug 2026879 AMAQI
2nd Aug 20266810 AMAQI
2nd Aug 20267611 AMAQI
2nd Aug 20268912 PMAQI
2nd Aug 2026781 PMAQI
2nd Aug 2026722 PMAQI
2nd Aug 2026603 PMAQI
2nd Aug 2026514 PMAQI
2nd Aug 2026425 PMAQI
2nd Aug 2026236 PMAQI
2nd Aug 2026177 PMAQI
2nd Aug 2026148 PMAQI
2nd Aug 2026109 PMAQI
2nd Aug 20261010 PMAQI
2nd Aug 20263011 PMAQI
3rd Aug 20262212 AMAQI
3rd Aug 2026121 AMAQI
3rd Aug 2026212 AMAQI
3rd Aug 2026233 AMAQI
28°C24/32°C
3rd Aug 2026214 AMAQI
3rd Aug 2026175 AMAQI
3rd Aug 2026236 AMAQI
3rd Aug 2026237 AMAQI
3rd Aug 2026258 AMAQI
3rd Aug 2026279 AMAQI
3rd Aug 20262710 AMAQI
3rd Aug 20263111 AMAQI
3rd Aug 20262912 PMAQI
3rd Aug 2026271 PMAQI
3rd Aug 2026252 PMAQI
3rd Aug 2026363 PMAQI
3rd Aug 2026314 PMAQI
3rd Aug 2026255 PMAQI
3rd Aug 2026236 PMAQI
3rd Aug 2026257 PMAQI
3rd Aug 2026258 PMAQI
3rd Aug 2026279 PMAQI
3rd Aug 20262510 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20261212 AMAQI
4th Aug 2026121 AMAQI
4th Aug 2026292 AMAQI
4th Aug 2026293 AMAQI
24°C23/27°C
4th Aug 2026234 AMAQI
4th Aug 2026275 AMAQI
4th Aug 2026296 AMAQI
4th Aug 2026317 AMAQI
4th Aug 2026428 AMAQI
4th Aug 2026339 AMAQI
4th Aug 20263110 AMAQI
4th Aug 20263311 AMAQI
4th Aug 20263812 PMAQI
4th Aug 2026331 PMAQI
4th Aug 2026332 PMAQI
4th Aug 2026293 PMAQI
4th Aug 2026314 PMAQI
4th Aug 2026315 PMAQI
4th Aug 2026316 PMAQI
4th Aug 2026277 PMAQI
4th Aug 2026258 PMAQI
4th Aug 2026279 PMAQI
4th Aug 20262510 PMAQI
4th Aug 20262511 PMAQI
5th Aug 20262712 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026252 AMAQI
5th Aug 2026253 AMAQI
24°C23/27°C
5th Aug 2026254 AMAQI
5th Aug 2026275 AMAQI
5th Aug 2026276 AMAQI
5th Aug 2026277 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026279 AMAQI
5th Aug 20262910 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20263112 PMAQI
5th Aug 2026311 PMAQI
5th Aug 2026312 PMAQI
5th Aug 2026293 PMAQI
5th Aug 2026294 PMAQI
5th Aug 2026255 PMAQI
5th Aug 2026256 PMAQI
5th Aug 2026237 PMAQI
5th Aug 2026218 PMAQI
5th Aug 2026219 PMAQI
5th Aug 20262110 PMAQI
5th Aug 20262111 PMAQI
6th Aug 20262112 AMAQI
6th Aug 2026211 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026213 AMAQI
25°C22/28°C
6th Aug 2026254 AMAQI
6th Aug 2026235 AMAQI
6th Aug 2026216 AMAQI
6th Aug 2026217 AMAQI
6th Aug 2026218 AMAQI
6th Aug 2026219 AMAQI
6th Aug 20262110 AMAQI
6th Aug 20262111 AMAQI
6th Aug 20262512 PMAQI
6th Aug 2026311 PMAQI
6th Aug 2026292 PMAQI
6th Aug 2026333 PMAQI
6th Aug 2026334 PMAQI
6th Aug 2026335 PMAQI
6th Aug 2026386 PMAQI
6th Aug 2026337 PMAQI
6th Aug 2026338 PMAQI
6th Aug 2026279 PMAQI
6th Aug 20262710 PMAQI
6th Aug 20262711 PMAQI
7th Aug 20262512 AMAQI
7th Aug 2026231 AMAQI
7th Aug 2026232 AMAQI
7th Aug 2026233 AMAQI
27°C25/30°C
7th Aug 2026214 AMAQI
7th Aug 2026235 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026258 AMAQI
7th Aug 2026239 AMAQI
7th Aug 20262310 AMAQI
7th Aug 20262111 AMAQI
7th Aug 20262112 PMAQI
7th Aug 2026211 PMAQI
7th Aug 2026232 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026216 PMAQI
7th Aug 2026217 PMAQI
7th Aug 2026238 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20262111 PMAQI
8th Aug 20262712 AMAQI
8th Aug 2026251 AMAQI
8th Aug 2026252 AMAQI
8th Aug 2026253 AMAQI
27°C25/29°C
8th Aug 2026254 AMAQI
8th Aug 2026255 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026259 AMAQI
8th Aug 20262910 AMAQI
8th Aug 20262111 AMAQI
8th Aug 20262112 PMAQI
8th Aug 2026231 PMAQI
8th Aug 2026212 PMAQI
8th Aug 2026213 PMAQI
8th Aug 2026254 PMAQI
8th Aug 2026215 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026259 PMAQI
8th Aug 20262110 PMAQI
8th Aug 20262511 PMAQI
9th Aug 20262112 AMAQI
9th Aug 2026271 AMAQI
9th Aug 2026292 AMAQI
9th Aug 2026293 AMAQI
26°C24/29°C
9th Aug 2026274 AMAQI
9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026298 AMAQI
9th Aug 2026339 AMAQI
9th Aug 20262710 AMAQI
9th Aug 20262111 AMAQI
9th Aug 20262512 PMAQI
9th Aug 2026291 PMAQI
9th Aug 2026252 PMAQI
9th Aug 2026313 PMAQI
9th Aug 2026294 PMAQI
9th Aug 2026385 PMAQI
9th Aug 2026386 PMAQI
9th Aug 2026407 PMAQI
9th Aug 2026338 PMAQI
9th Aug 2026369 PMAQI
9th Aug 20264010 PMAQI
9th Aug 20262711 PMAQI
10th Aug 20263112 AMAQI
10th Aug 2026271 AMAQI
10th Aug 2026232 AMAQI
10th Aug 2026253 AMAQI
26°C23/29°C
10th Aug 2026234 AMAQI
10th Aug 2026215 AMAQI
10th Aug 2026236 AMAQI
10th Aug 2026237 AMAQI
10th Aug 2026238 AMAQI
10th Aug 2026219 AMAQI
10th Aug 20262110 AMAQI
10th Aug 20262311 AMAQI
10th Aug 20262912 PMAQI
10th Aug 2026291 PMAQI
10th Aug 2026232 PMAQI
10th Aug 2026233 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026215 PMAQI
10th Aug 2026216 PMAQI
10th Aug 2026217 PMAQI
10th Aug 2026238 PMAQI
10th Aug 2026259 PMAQI
10th Aug 20262910 PMAQI
10th Aug 20263111 PMAQI
11th Aug 20263112 AMAQI
11th Aug 2026291 AMAQI
11th Aug 2026272 AMAQI
11th Aug 2026253 AMAQI
26°C23/29°C
11th Aug 2026254 AMAQI
11th Aug 2026295 AMAQI
11th Aug 2026346 AMAQI
11th Aug 2026337 AMAQI
11th Aug 2026318 AMAQI
11th Aug 2026369 AMAQI
11th Aug 20263110 AMAQI
11th Aug 20263311 AMAQI
11th Aug 20263112 PMAQI
11th Aug 2026251 PMAQI
11th Aug 2026252 PMAQI
11th Aug 2026293 PMAQI
11th Aug 2026274 PMAQI
11th Aug 2026255 PMAQI
11th Aug 2026276 PMAQI
11th Aug 2026297 PMAQI
11th Aug 2026238 PMAQI
11th Aug 2026239 PMAQI
11th Aug 20262310 PMAQI
11th Aug 20262511 PMAQI
12th Aug 20262312 AMAQI
12th Aug 2026251 AMAQI
12th Aug 2026252 AMAQI
12th Aug 2026253 AMAQI
23°C21/26°C
12th Aug 2026214 AMAQI
12th Aug 2026255 AMAQI
12th Aug 2026216 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026258 AMAQI
12th Aug 2026259 AMAQI
12th Aug 20262810 AMAQI
12th Aug 20262911 AMAQI
12th Aug 20262512 PMAQI
12th Aug 2026211 PMAQI
12th Aug 2026252 PMAQI
12th Aug 2026253 PMAQI
12th Aug 2026274 PMAQI
12th Aug 2026255 PMAQI
12th Aug 2026256 PMAQI
12th Aug 2026277 PMAQI
12th Aug 2026278 PMAQI
12th Aug 2026259 PMAQI
12th Aug 20262510 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20262512 AMAQI
13th Aug 2026251 AMAQI
13th Aug 2026232 AMAQI
13th Aug 2026253 AMAQI
24°C22/26°C
13th Aug 2026254 AMAQI
13th Aug 2026215 AMAQI
13th Aug 2026236 AMAQI
13th Aug 2026217 AMAQI
13th Aug 2026218 AMAQI
13th Aug 2026239 AMAQI
13th Aug 20263310 AMAQI
13th Aug 20262611 AMAQI
13th Aug 20262312 PMAQI
13th Aug 2026251 PMAQI
13th Aug 2026242 PMAQI
13th Aug 2026243 PMAQI
13th Aug 2026214 PMAQI
13th Aug 2026215 PMAQI
13th Aug 2026276 PMAQI
13th Aug 2026237 PMAQI
13th Aug 2026218 PMAQI
13th Aug 2026219 PMAQI
13th Aug 20262110 PMAQI
13th Aug 20262111 PMAQI
14th Aug 20262112 AMAQI
14th Aug 2026251 AMAQI
14th Aug 2026212 AMAQI
14th Aug 2026253 AMAQI
25°C23/29°C
14th Aug 2026254 AMAQI
14th Aug 2026275 AMAQI
14th Aug 2026296 AMAQI
14th Aug 2026297 AMAQI
14th Aug 2026258 AMAQI
14th Aug 2026259 AMAQI
14th Aug 20262510 AMAQI
14th Aug 20262111 AMAQI
14th Aug 20262512 PMAQI
14th Aug 2026231 PMAQI
14th Aug 2026212 PMAQI
14th Aug 2026233 PMAQI
14th Aug 2026244 PMAQI
14th Aug 2026215 PMAQI
14th Aug 2026256 PMAQI
14th Aug 2026217 PMAQI
14th Aug 2026218 PMAQI
14th Aug 2026219 PMAQI
14th Aug 20262110 PMAQI
14th Aug 20262511 PMAQI
15th Aug 20262312 AMAQI
15th Aug 2026231 AMAQI
15th Aug 2026252 AMAQI
15th Aug 2026253 AMAQI
25°C24/28°C
15th Aug 2026274 AMAQI
4 AM15th Aug 2026255 AMAQI
15th Aug 2026296 AMAQI
15th Aug 2026257 AMAQI
15th Aug 2026258 AMAQI
15th Aug 2026239 AMAQI
15th Aug 20262910 AMAQI
15th Aug 20262711 AMAQI
11 AM15th Aug 20262312 PMAQI
15th Aug 2026291 PMAQI
15th Aug 2026232 PMAQI
15th Aug 2026293 PMAQI
15th Aug 2026254 PMAQI
15th Aug 2026255 PMAQI
15th Aug 2026256 PMAQI
6 PM15th Aug 2026237 PMAQI
15th Aug 2026258 PMAQI
15th Aug 2026259 PMAQI
15th Aug 20262510 PMAQI
15th Aug 20262111 PMAQI
11 PM3 AM
26°C24/29°C
Day time
Avg. Highest Time
12 PM - 1 PM
38AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
7 AM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 1 PM (Avg. 38), while the lowest AQI was between 7 AM to 7 AM (Avg. 32).
Night time
Avg. Highest Time
12 AM - 7 PM
34AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
9 PM - 10 PM
30AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 7 PM (Avg. 34), while the lowest AQI was between 9 PM to 10 PM (Avg. 30).
2026 Days Vs Air Quality
Shimoiino, Futtsu, Chiba, Japan
2026
89%
201
11%
26
Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)
Good
201 DaysModerate
26 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 89%
Health Risk Level:
Low
In 2026, 89% of 227 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
Shimoiino, Futtsu, Chiba, Japan
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
20AQI (US)
20AQI (US)
2nd January 2026
18AQI (US)
18AQI (US)
3rd January 2026
18AQI (US)
18AQI (US)
4th January 2026
19AQI (US)
19AQI (US)
5th January 2026
30AQI (US)
30AQI (US)
6th January 2026
26AQI (US)
26AQI (US)
7th January 2026
28AQI (US)
28AQI (US)
8th January 2026
39AQI (US)
39AQI (US)
9th January 2026
15AQI (US)
15AQI (US)
10th January 2026
35AQI (US)
35AQI (US)
11th January 2026
29AQI (US)
29AQI (US)
12th January 2026
16AQI (US)
16AQI (US)
13th January 2026
25AQI (US)
25AQI (US)
14th January 2026
18AQI (US)
18AQI (US)
15th January 2026
29AQI (US)
29AQI (US)
16th January 2026
44AQI (US)
44AQI (US)
17th January 2026
47AQI (US)
47AQI (US)
18th January 2026
24AQI (US)
24AQI (US)
19th January 2026
37AQI (US)
37AQI (US)
20th January 2026
32AQI (US)
32AQI (US)
21st January 2026
13AQI (US)
13AQI (US)
22nd January 2026
21AQI (US)
21AQI (US)
23rd January 2026
34AQI (US)
34AQI (US)
24th January 2026
31AQI (US)
31AQI (US)
25th January 2026
44AQI (US)
44AQI (US)
26th January 2026
26AQI (US)
26AQI (US)
27th January 2026
37AQI (US)
37AQI (US)
28th January 2026
31AQI (US)
31AQI (US)
29th January 2026
30AQI (US)
30AQI (US)
30th January 2026
39AQI (US)
39AQI (US)
31st January 2026
37AQI (US)
37AQI (US)
1st February 2026
34AQI (US)
34AQI (US)
2nd February 2026
46AQI (US)
46AQI (US)
3rd February 2026
30AQI (US)
30AQI (US)
4th February 2026
34AQI (US)
34AQI (US)
5th February 2026
53AQI (US)
53AQI (US)
6th February 2026
54AQI (US)
54AQI (US)
7th February 2026
17AQI (US)
17AQI (US)
8th February 2026
12AQI (US)
12AQI (US)
9th February 2026
33AQI (US)
33AQI (US)
10th February 2026
31AQI (US)
31AQI (US)
11th February 2026
44AQI (US)
44AQI (US)
12th February 2026
32AQI (US)
32AQI (US)
13th February 2026
41AQI (US)
41AQI (US)
14th February 2026
45AQI (US)
45AQI (US)
15th February 2026
47AQI (US)
47AQI (US)
16th February 2026
46AQI (US)
46AQI (US)
17th February 2026
18AQI (US)
18AQI (US)
18th February 2026
28AQI (US)
28AQI (US)
19th February 2026
16AQI (US)
16AQI (US)
20th February 2026
28AQI (US)
28AQI (US)
21st February 2026
42AQI (US)
42AQI (US)
22nd February 2026
28AQI (US)
28AQI (US)
23rd February 2026
29AQI (US)
29AQI (US)
24th February 2026
34AQI (US)
34AQI (US)
25th February 2026
29AQI (US)
29AQI (US)
26th February 2026
20AQI (US)
20AQI (US)
27th February 2026
42AQI (US)
42AQI (US)
28th February 2026
41AQI (US)
41AQI (US)
1st March 2026
33AQI (US)
33AQI (US)
2nd March 2026
60AQI (US)
60AQI (US)
3rd March 2026
42AQI (US)
42AQI (US)
4th March 2026
50AQI (US)
50AQI (US)
5th March 2026
50AQI (US)
50AQI (US)
6th March 2026
54AQI (US)
54AQI (US)
7th March 2026
33AQI (US)
33AQI (US)
8th March 2026
23AQI (US)
23AQI (US)
9th March 2026
41AQI (US)
41AQI (US)
10th March 2026
58AQI (US)
58AQI (US)
11th March 2026
54AQI (US)
54AQI (US)
12th March 2026
60AQI (US)
60AQI (US)
13th March 2026
38AQI (US)
38AQI (US)
14th March 2026
45AQI (US)
45AQI (US)
15th March 2026
55AQI (US)
55AQI (US)
16th March 2026
49AQI (US)
49AQI (US)
17th March 2026
47AQI (US)
47AQI (US)
18th March 2026
50AQI (US)
50AQI (US)
19th March 2026
35AQI (US)
35AQI (US)
20th March 2026
31AQI (US)
31AQI (US)
21st March 2026
42AQI (US)
42AQI (US)
22nd March 2026
48AQI (US)
48AQI (US)
23rd March 2026
28AQI (US)
28AQI (US)
24th March 2026
31AQI (US)
31AQI (US)
25th March 2026
45AQI (US)
45AQI (US)
26th March 2026
28AQI (US)
28AQI (US)
27th March 2026
30AQI (US)
30AQI (US)
28th March 2026
52AQI (US)
52AQI (US)
29th March 2026
49AQI (US)
49AQI (US)
30th March 2026
47AQI (US)
47AQI (US)
31st March 2026
22AQI (US)
22AQI (US)
1st April 2026
24AQI (US)
24AQI (US)
2nd April 2026
20AQI (US)
20AQI (US)
3rd April 2026
45AQI (US)
45AQI (US)
4th April 2026
44AQI (US)
44AQI (US)
5th April 2026
35AQI (US)
35AQI (US)
6th April 2026
35AQI (US)
35AQI (US)
7th April 2026
25AQI (US)
25AQI (US)
8th April 2026
24AQI (US)
24AQI (US)
9th April 2026
27AQI (US)
27AQI (US)
10th April 2026
48AQI (US)
48AQI (US)
11th April 2026
45AQI (US)
45AQI (US)
12th April 2026
33AQI (US)
33AQI (US)
13th April 2026
34AQI (US)
34AQI (US)
14th April 2026
39AQI (US)
39AQI (US)
15th April 2026
32AQI (US)
32AQI (US)
16th April 2026
33AQI (US)
33AQI (US)
17th April 2026
35AQI (US)
35AQI (US)
18th April 2026
28AQI (US)
28AQI (US)
19th April 2026
30AQI (US)
30AQI (US)
20th April 2026
36AQI (US)
36AQI (US)
21st April 2026
38AQI (US)
38AQI (US)
22nd April 2026
45AQI (US)
45AQI (US)
23rd April 2026
35AQI (US)
35AQI (US)
24th April 2026
30AQI (US)
30AQI (US)
25th April 2026
35AQI (US)
35AQI (US)
26th April 2026
51AQI (US)
51AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
43AQI (US)
43AQI (US)
29th April 2026
38AQI (US)
38AQI (US)
30th April 2026
22AQI (US)
22AQI (US)
1st May 2026
23AQI (US)
23AQI (US)
2nd May 2026
22AQI (US)
22AQI (US)
3rd May 2026
36AQI (US)
36AQI (US)
4th May 2026
30AQI (US)
30AQI (US)
5th May 2026
20AQI (US)
20AQI (US)
6th May 2026
26AQI (US)
26AQI (US)
7th May 2026
27AQI (US)
27AQI (US)
8th May 2026
22AQI (US)
22AQI (US)
9th May 2026
26AQI (US)
26AQI (US)
10th May 2026
30AQI (US)
30AQI (US)
11th May 2026
26AQI (US)
26AQI (US)
12th May 2026
29AQI (US)
29AQI (US)
13th May 2026
38AQI (US)
38AQI (US)
14th May 2026
34AQI (US)
34AQI (US)
15th May 2026
40AQI (US)
40AQI (US)
16th May 2026
86AQI (US)
86AQI (US)
17th May 2026
69AQI (US)
69AQI (US)
18th May 2026
54AQI (US)
54AQI (US)
19th May 2026
49AQI (US)
49AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
58AQI (US)
58AQI (US)
22nd May 2026
59AQI (US)
59AQI (US)
23rd May 2026
53AQI (US)
53AQI (US)
24th May 2026
58AQI (US)
58AQI (US)
25th May 2026
48AQI (US)
48AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
25AQI (US)
25AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
24AQI (US)
24AQI (US)
31st May 2026
28AQI (US)
28AQI (US)
1st June 2026
32AQI (US)
32AQI (US)
2nd June 2026
21AQI (US)
21AQI (US)
3rd June 2026
19AQI (US)
19AQI (US)
4th June 2026
24AQI (US)
24AQI (US)
5th June 2026
22AQI (US)
22AQI (US)
6th June 2026
23AQI (US)
23AQI (US)
7th June 2026
32AQI (US)
32AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
19AQI (US)
19AQI (US)
10th June 2026
22AQI (US)
22AQI (US)
11th June 2026
24AQI (US)
24AQI (US)
12th June 2026
24AQI (US)
24AQI (US)
13th June 2026
39AQI (US)
39AQI (US)
14th June 2026
32AQI (US)
32AQI (US)
15th June 2026
14AQI (US)
14AQI (US)
16th June 2026
26AQI (US)
26AQI (US)
17th June 2026
23AQI (US)
23AQI (US)
18th June 2026
25AQI (US)
25AQI (US)
19th June 2026
26AQI (US)
26AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
21AQI (US)
21AQI (US)
22nd June 2026
20AQI (US)
20AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
23AQI (US)
23AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
30AQI (US)
30AQI (US)
27th June 2026
27AQI (US)
27AQI (US)
28th June 2026
27AQI (US)
27AQI (US)
29th June 2026
29AQI (US)
29AQI (US)
30th June 2026
30AQI (US)
30AQI (US)
1st July 2026
25AQI (US)
25AQI (US)
2nd July 2026
23AQI (US)
23AQI (US)
3rd July 2026
24AQI (US)
24AQI (US)
4th July 2026
21AQI (US)
21AQI (US)
5th July 2026
21AQI (US)
21AQI (US)
6th July 2026
24AQI (US)
24AQI (US)
7th July 2026
25AQI (US)
25AQI (US)
8th July 2026
23AQI (US)
23AQI (US)
9th July 2026
19AQI (US)
19AQI (US)
10th July 2026
20AQI (US)
20AQI (US)
11th July 2026
18AQI (US)
18AQI (US)
12th July 2026
25AQI (US)
25AQI (US)
13th July 2026
36AQI (US)
36AQI (US)
14th July 2026
34AQI (US)
34AQI (US)
15th July 2026
30AQI (US)
30AQI (US)
16th July 2026
64AQI (US)
64AQI (US)
17th July 2026
55AQI (US)
55AQI (US)
18th July 2026
17AQI (US)
17AQI (US)
19th July 2026
17AQI (US)
17AQI (US)
20th July 2026
29AQI (US)
29AQI (US)
21st July 2026
46AQI (US)
46AQI (US)
22nd July 2026
59AQI (US)
59AQI (US)
23rd July 2026
56AQI (US)
56AQI (US)
24th July 2026
35AQI (US)
35AQI (US)
25th July 2026
51AQI (US)
51AQI (US)
26th July 2026
24AQI (US)
24AQI (US)
27th July 2026
26AQI (US)
26AQI (US)
28th July 2026
31AQI (US)
31AQI (US)
29th July 2026
30AQI (US)
30AQI (US)
30th July 2026
41AQI (US)
41AQI (US)
31st July 2026
54AQI (US)
54AQI (US)
1st August 2026
61AQI (US)
61AQI (US)
2nd August 2026
53AQI (US)
53AQI (US)
3rd August 2026
25AQI (US)
25AQI (US)
4th August 2026
29AQI (US)
29AQI (US)
5th August 2026
26AQI (US)
26AQI (US)
6th August 2026
26AQI (US)
26AQI (US)
7th August 2026
23AQI (US)
23AQI (US)
8th August 2026
24AQI (US)
24AQI (US)
9th August 2026
30AQI (US)
30AQI (US)
10th August 2026
24AQI (US)
24AQI (US)
11th August 2026
28AQI (US)
28AQI (US)
12th August 2026
25AQI (US)
25AQI (US)
13th August 2026
23AQI (US)
23AQI (US)
14th August 2026
24AQI (US)
24AQI (US)
15th August 2026
25AQI (US)
25AQI (US)
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
29AQI (US)
34AQI (US)
43AQI (US)
35AQI (US)
38AQI (US)
25AQI (US)
32AQI (US)
30AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202634AQI (US)
31
26
2
24
7
29
1
23
8
30
25
6
13
2
201
26
Highest AQI (US) recorded in
March43AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202537AQI (US)
30
1
28
26
5
30
30
1
30
23
8
21
10
29
1
24
7
21
9
27
4
319
46
Highest AQI (US) recorded in
August46AQI (US)
Lowest AQI (US) recorded in
June28AQI (US)
202437AQI (US)
30
1
28
1
25
6
21
9
27
4
27
3
17
14
29
2
29
1
31
26
4
31
321
45
Highest AQI (US) recorded in
July50AQI (US)
Lowest AQI (US) recorded in
December29AQI (US)
202338AQI (US)
26
4
25
3
26
5
23
7
27
4
20
10
25
6
30
1
29
1
29
2
24
5
25
6
309
54
Highest AQI (US) recorded in
April47AQI (US)
Lowest AQI (US) recorded in
August24AQI (US)
202237AQI (US)
26
3
20
1
26
5
21
9
27
4
30
23
1
1
27
1
28
3
27
3
31
287
30
Highest AQI (US) recorded in
March43AQI (US)
Lowest AQI (US) recorded in
August18AQI (US)
202135AQI (US)
24
6
25
3
26
5
28
2
25
6
28
2
29
2
26
5
29
1
30
1
25
5
29
2
324
40
Highest AQI (US) recorded in
May41AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202034AQI (US)
12
1
19
2
18
25
5
31
25
5
1
19
29
2
20
10
27
4
225
29
1
Highest AQI (US) recorded in
November39AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
38AQI (US)Least Polluted Year Recorded
2020(Avg.)
34AQI (US)Shimoiino's annual 2026 AQI (US) (34) shows an average percentage change of -6.2% (improved AQI (US)) compared to previous years: 2020 (34), 2021 (35), 2022 (37), 2023 (38), 2024 (37), 2025 (37).
