Tsuiheiji, Ichihara, 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
Tsuiheiji, Ichihara, Chiba, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2026
65AQILowest AQI recorded on
3rd Aug 2023
14AQISame Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Tsuiheiji, Ichihara, Chiba, Japan
AQI
Day
Night
.
4 AM8th Aug 2026
6 PM
3 AM9th Aug 2026
Day time
Avg. Highest Time
7AM8th Aug
29AQI
Avg. Lowest Time
1PM8th Aug
21AQI
Night time
Avg. Highest Time
3AM9th Aug
25AQI
Avg. Lowest Time
2AM9th Aug
21AQI
In the last 24 hours,
Tsuiheiji's AQI reached its highest point of 29 at 7 AM during the Day, while the lowest point, 21, was recorded at 2 AM during the Night between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Tsuiheiji, Ichihara, Chiba, Japan
JulAug
11th - 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 - 08th08th - 09th09th
Day
Night
11th Jul 2026244 AMAQI
11th Jul 2026195 AMAQI
11th Jul 202686 AMAQI
11th Jul 202687 AMAQI
11th Jul 2026308 AMAQI
11th Jul 2026309 AMAQI
11th Jul 20263010 AMAQI
11th Jul 20262811 AMAQI
11th Jul 20262412 PMAQI
11th Jul 2026241 PMAQI
11th Jul 2026222 PMAQI
11th Jul 2026203 PMAQI
11th Jul 2026244 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026267 PMAQI
11th Jul 2026168 PMAQI
11th Jul 202689 PMAQI
11th Jul 20262810 PMAQI
11th Jul 20263011 PMAQI
12th Jul 20263012 AMAQI
12th Jul 2026281 AMAQI
12th Jul 2026182 AMAQI
12th Jul 2026163 AMAQI
26°C23/29°C
12th Jul 2026244 AMAQI
12th Jul 2026275 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026297 AMAQI
12th Jul 2026268 AMAQI
12th Jul 2026309 AMAQI
12th Jul 20263010 AMAQI
12th Jul 20262611 AMAQI
12th Jul 20262412 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026262 PMAQI
12th Jul 2026223 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026325 PMAQI
12th Jul 2026286 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026309 PMAQI
12th Jul 20263110 PMAQI
12th Jul 20263011 PMAQI
13th Jul 20262912 AMAQI
13th Jul 2026301 AMAQI
13th Jul 2026292 AMAQI
13th Jul 2026283 AMAQI
25°C23/27°C
13th Jul 2026254 AMAQI
13th Jul 2026315 AMAQI
13th Jul 2026276 AMAQI
13th Jul 2026267 AMAQI
13th Jul 2026288 AMAQI
13th Jul 2026309 AMAQI
13th Jul 20263010 AMAQI
13th Jul 20262811 AMAQI
13th Jul 20263012 PMAQI
13th Jul 2026261 PMAQI
13th Jul 2026692 PMAQI
13th Jul 2026763 PMAQI
13th Jul 2026704 PMAQI
13th Jul 2026645 PMAQI
13th Jul 2026566 PMAQI
13th Jul 2026557 PMAQI
13th Jul 2026548 PMAQI
13th Jul 2026569 PMAQI
13th Jul 20264810 PMAQI
13th Jul 20265411 PMAQI
14th Jul 20265812 AMAQI
14th Jul 2026581 AMAQI
14th Jul 2026562 AMAQI
14th Jul 2026623 AMAQI
25°C24/28°C
14th Jul 2026524 AMAQI
14th Jul 2026515 AMAQI
14th Jul 2026386 AMAQI
14th Jul 2026507 AMAQI
14th Jul 2026468 AMAQI
14th Jul 2026389 AMAQI
14th Jul 20265810 AMAQI
14th Jul 20266211 AMAQI
14th Jul 20266212 PMAQI
14th Jul 2026551 PMAQI
14th Jul 2026422 PMAQI
14th Jul 2026593 PMAQI
14th Jul 2026534 PMAQI
14th Jul 2026385 PMAQI
14th Jul 2026426 PMAQI
14th Jul 2026507 PMAQI
14th Jul 2026468 PMAQI
14th Jul 2026349 PMAQI
14th Jul 20262910 PMAQI
14th Jul 20262911 PMAQI
15th Jul 20263112 AMAQI
15th Jul 2026211 AMAQI
15th Jul 2026232 AMAQI
15th Jul 2026273 AMAQI
26°C23/29°C
15th Jul 2026294 AMAQI
15th Jul 2026275 AMAQI
15th Jul 2026276 AMAQI
15th Jul 2026317 AMAQI
15th Jul 2026408 AMAQI
15th Jul 2026529 AMAQI
15th Jul 20265910 AMAQI
15th Jul 20265511 AMAQI
15th Jul 20265812 PMAQI
15th Jul 2026621 PMAQI
15th Jul 2026552 PMAQI
15th Jul 2026523 PMAQI
15th Jul 2026484 PMAQI
15th Jul 2026485 PMAQI
15th Jul 2026526 PMAQI
15th Jul 2026527 PMAQI
15th Jul 2026428 PMAQI
15th Jul 2026389 PMAQI
15th Jul 20264210 PMAQI
15th Jul 20264411 PMAQI
16th Jul 20265112 AMAQI
16th Jul 2026421 AMAQI
16th Jul 2026422 AMAQI
16th Jul 2026523 AMAQI
27°C24/30°C
16th Jul 2026644 AMAQI
16th Jul 2026755 AMAQI
16th Jul 2026746 AMAQI
16th Jul 2026717 AMAQI
16th Jul 2026748 AMAQI
16th Jul 2026769 AMAQI
16th Jul 20267610 AMAQI
16th Jul 20267211 AMAQI
16th Jul 20268412 PMAQI
16th Jul 2026901 PMAQI
16th Jul 2026962 PMAQI
16th Jul 2026883 PMAQI
16th Jul 2026944 PMAQI
16th Jul 2026885 PMAQI
16th Jul 2026856 PMAQI
16th Jul 2026827 PMAQI
16th Jul 2026728 PMAQI
16th Jul 2026659 PMAQI
16th Jul 20266710 PMAQI
16th Jul 20266911 PMAQI
17th Jul 20266512 AMAQI
17th Jul 2026671 AMAQI
17th Jul 2026682 AMAQI
17th Jul 2026683 AMAQI
27°C25/30°C
17th Jul 2026644 AMAQI
17th Jul 2026655 AMAQI
17th Jul 2026656 AMAQI
17th Jul 2026677 AMAQI
17th Jul 2026628 AMAQI
17th Jul 2026669 AMAQI
17th Jul 20267310 AMAQI
17th Jul 20267911 AMAQI
17th Jul 20266812 PMAQI
17th Jul 2026291 PMAQI
17th Jul 202692 PMAQI
17th Jul 2026123 PMAQI
17th Jul 2026304 PMAQI
17th Jul 2026365 PMAQI
17th Jul 2026546 PMAQI
17th Jul 2026527 PMAQI
17th Jul 2026488 PMAQI
17th Jul 2026429 PMAQI
17th Jul 20263410 PMAQI
17th Jul 20263311 PMAQI
18th Jul 20262712 AMAQI
18th Jul 2026251 AMAQI
18th Jul 2026212 AMAQI
18th Jul 2026273 AMAQI
27°C25/30°C
18th Jul 2026254 AMAQI
18th Jul 2026175 AMAQI
18th Jul 2026176 AMAQI
18th Jul 2026127 AMAQI
18th Jul 2026128 AMAQI
18th Jul 2026219 AMAQI
18th Jul 20261710 AMAQI
18th Jul 2026811 AMAQI
18th Jul 2026812 PMAQI
18th Jul 2026171 PMAQI
18th Jul 2026122 PMAQI
18th Jul 202683 PMAQI
18th Jul 2026124 PMAQI
18th Jul 2026125 PMAQI
18th Jul 2026196 PMAQI
18th Jul 2026127 PMAQI
18th Jul 202698 PMAQI
18th Jul 202689 PMAQI
18th Jul 20261010 PMAQI
18th Jul 20261211 PMAQI
19th Jul 20261212 AMAQI
19th Jul 2026121 AMAQI
19th Jul 2026172 AMAQI
19th Jul 2026123 AMAQI
26°C24/28°C
19th Jul 2026144 AMAQI
19th Jul 2026105 AMAQI
19th Jul 202696 AMAQI
19th Jul 2026117 AMAQI
19th Jul 2026168 AMAQI
19th Jul 2026219 AMAQI
19th Jul 20262310 AMAQI
19th Jul 20261211 AMAQI
19th Jul 20261612 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026213 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026255 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026277 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026239 PMAQI
19th Jul 20262510 PMAQI
19th Jul 20262711 PMAQI
20th Jul 20262112 AMAQI
20th Jul 2026211 AMAQI
20th Jul 2026232 AMAQI
20th Jul 2026253 AMAQI
26°C24/28°C
20th Jul 2026234 AMAQI
20th Jul 2026235 AMAQI
20th Jul 2026296 AMAQI
20th Jul 2026297 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026299 AMAQI
20th Jul 20262910 AMAQI
20th Jul 20264211 AMAQI
20th Jul 20264012 PMAQI
20th Jul 2026421 PMAQI
20th Jul 2026272 PMAQI
20th Jul 2026443 PMAQI
20th Jul 2026544 PMAQI
20th Jul 2026425 PMAQI
20th Jul 2026426 PMAQI
20th Jul 2026407 PMAQI
20th Jul 2026428 PMAQI
20th Jul 2026389 PMAQI
20th Jul 20263810 PMAQI
20th Jul 20263611 PMAQI
21st Jul 20263812 AMAQI
21st Jul 2026381 AMAQI
21st Jul 2026362 AMAQI
21st Jul 2026403 AMAQI
28°C25/31°C
21st Jul 2026364 AMAQI
21st Jul 2026385 AMAQI
21st Jul 2026386 AMAQI
21st Jul 2026367 AMAQI
21st Jul 2026388 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20265510 AMAQI
21st Jul 20265511 AMAQI
21st Jul 2026701 PMAQI
21st Jul 2026692 PMAQI
21st Jul 2026733 PMAQI
21st Jul 2026704 PMAQI
21st Jul 2026705 PMAQI
21st Jul 2026626 PMAQI
21st Jul 2026937 PMAQI
21st Jul 2026478 PMAQI
21st Jul 2026449 PMAQI
21st Jul 20266010 PMAQI
21st Jul 20266911 PMAQI
22nd Jul 20267112 AMAQI
22nd Jul 2026701 AMAQI
22nd Jul 2026572 AMAQI
22nd Jul 2026593 AMAQI
28°C25/32°C
22nd Jul 2026584 AMAQI
22nd Jul 2026545 AMAQI
22nd Jul 2026716 AMAQI
22nd Jul 2026717 AMAQI
22nd Jul 2026678 AMAQI
22nd Jul 2026689 AMAQI
22nd Jul 20267310 AMAQI
22nd Jul 20267111 AMAQI
22nd Jul 20267112 PMAQI
22nd Jul 2026701 PMAQI
22nd Jul 2026732 PMAQI
22nd Jul 2026703 PMAQI
22nd Jul 2026684 PMAQI
22nd Jul 2026735 PMAQI
22nd Jul 2026716 PMAQI
22nd Jul 2026737 PMAQI
22nd Jul 2026858 PMAQI
22nd Jul 2026729 PMAQI
22nd Jul 20268810 PMAQI
22nd Jul 20268711 PMAQI
23rd Jul 20266612 AMAQI
23rd Jul 2026681 AMAQI
23rd Jul 2026622 AMAQI
23rd Jul 2026623 AMAQI
28°C26/31°C
23rd Jul 2026574 AMAQI
23rd Jul 2026585 AMAQI
23rd Jul 2026596 AMAQI
23rd Jul 2026627 AMAQI
23rd Jul 2026648 AMAQI
23rd Jul 2026739 AMAQI
23rd Jul 20267210 AMAQI
23rd Jul 20268211 AMAQI
23rd Jul 20267912 PMAQI
23rd Jul 2026711 PMAQI
23rd Jul 2026712 PMAQI
23rd Jul 2026623 PMAQI
23rd Jul 2026584 PMAQI
23rd Jul 2026625 PMAQI
23rd Jul 2026566 PMAQI
23rd Jul 2026447 PMAQI
23rd Jul 2026368 PMAQI
23rd Jul 2026259 PMAQI
23rd Jul 20262110 PMAQI
23rd Jul 20262311 PMAQI
24th Jul 20262512 AMAQI
24th Jul 2026251 AMAQI
24th Jul 2026252 AMAQI
24th Jul 2026293 AMAQI
29°C26/34°C
24th Jul 2026294 AMAQI
24th Jul 2026295 AMAQI
24th Jul 2026276 AMAQI
24th Jul 2026337 AMAQI
24th Jul 2026388 AMAQI
24th Jul 2026369 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20263311 AMAQI
24th Jul 20263812 PMAQI
24th Jul 2026461 PMAQI
24th Jul 2026502 PMAQI
24th Jul 2026293 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026255 PMAQI
24th Jul 2026276 PMAQI
24th Jul 2026237 PMAQI
24th Jul 2026368 PMAQI
24th Jul 2026369 PMAQI
24th Jul 20262910 PMAQI
24th Jul 20262911 PMAQI
25th Jul 20263412 AMAQI
25th Jul 2026421 AMAQI
25th Jul 2026332 AMAQI
25th Jul 2026313 AMAQI
28°C25/30°C
25th Jul 2026384 AMAQI
25th Jul 2026335 AMAQI
25th Jul 2026366 AMAQI
25th Jul 2026517 AMAQI
25th Jul 2026558 AMAQI
25th Jul 2026679 AMAQI
25th Jul 20266910 AMAQI
25th Jul 20267011 AMAQI
25th Jul 20266012 PMAQI
25th Jul 2026561 PMAQI
25th Jul 2026542 PMAQI
25th Jul 2026523 PMAQI
25th Jul 2026534 PMAQI
25th Jul 2026505 PMAQI
25th Jul 2026386 PMAQI
25th Jul 2026277 PMAQI
25th Jul 2026218 PMAQI
25th Jul 2026219 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20263111 PMAQI
26th Jul 20262712 AMAQI
26th Jul 2026251 AMAQI
26th Jul 2026232 AMAQI
26th Jul 2026213 AMAQI
27°C23/31°C
26th Jul 2026274 AMAQI
26th Jul 2026365 AMAQI
26th Jul 2026386 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026178 AMAQI
26th Jul 2026279 AMAQI
26th Jul 20262110 AMAQI
26th Jul 20261911 AMAQI
26th Jul 20263812 PMAQI
26th Jul 2026511 PMAQI
26th Jul 2026542 PMAQI
26th Jul 2026633 PMAQI
26th Jul 2026344 PMAQI
26th Jul 2026345 PMAQI
26th Jul 2026296 PMAQI
26th Jul 2026337 PMAQI
26th Jul 2026408 PMAQI
26th Jul 2026389 PMAQI
26th Jul 20263210 PMAQI
26th Jul 20262911 PMAQI
27th Jul 20262312 AMAQI
27th Jul 2026191 AMAQI
27th Jul 2026272 AMAQI
27th Jul 2026253 AMAQI
26°C24/29°C
27th Jul 2026274 AMAQI
27th Jul 2026255 AMAQI
27th Jul 2026276 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026178 AMAQI
27th Jul 202689 AMAQI
27th Jul 2026810 AMAQI
27th Jul 20263111 AMAQI
27th Jul 20263312 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026342 PMAQI
27th Jul 2026383 PMAQI
27th Jul 2026294 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026278 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262110 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20263112 AMAQI
28th Jul 2026401 AMAQI
28th Jul 2026362 AMAQI
28th Jul 2026253 AMAQI
26°C23/29°C
28th Jul 2026214 AMAQI
28th Jul 2026295 AMAQI
28th Jul 2026296 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026298 AMAQI
28th Jul 2026279 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20263311 AMAQI
28th Jul 20265112 PMAQI
28th Jul 2026501 PMAQI
28th Jul 2026512 PMAQI
28th Jul 2026293 PMAQI
28th Jul 2026484 PMAQI
28th Jul 2026485 PMAQI
28th Jul 2026366 PMAQI
28th Jul 2026277 PMAQI
28th Jul 2026278 PMAQI
28th Jul 2026219 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20263812 AMAQI
29th Jul 2026361 AMAQI
29th Jul 2026362 AMAQI
29th Jul 2026323 AMAQI
26°C23/28°C
29th Jul 2026444 AMAQI
29th Jul 2026445 AMAQI
29th Jul 2026426 AMAQI
29th Jul 2026427 AMAQI
29th Jul 2026368 AMAQI
29th Jul 2026469 AMAQI
29th Jul 20263610 AMAQI
29th Jul 20262711 AMAQI
29th Jul 20262912 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026312 PMAQI
29th Jul 2026273 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026295 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026277 PMAQI
29th Jul 2026278 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262910 PMAQI
29th Jul 20264011 PMAQI
30th Jul 20264212 AMAQI
30th Jul 2026421 AMAQI
30th Jul 2026382 AMAQI
30th Jul 2026363 AMAQI
27°C24/31°C
30th Jul 2026384 AMAQI
30th Jul 2026385 AMAQI
30th Jul 2026346 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026278 AMAQI
30th Jul 2026279 AMAQI
30th Jul 20263610 AMAQI
30th Jul 20263811 AMAQI
30th Jul 20264412 PMAQI
30th Jul 2026461 PMAQI
30th Jul 2026512 PMAQI
30th Jul 2026583 PMAQI
30th Jul 2026624 PMAQI
30th Jul 2026645 PMAQI
30th Jul 2026556 PMAQI
30th Jul 2026567 PMAQI
30th Jul 2026558 PMAQI
30th Jul 2026569 PMAQI
30th Jul 20265010 PMAQI
30th Jul 20265311 PMAQI
31st Jul 20265712 AMAQI
31st Jul 2026711 AMAQI
31st Jul 2026512 AMAQI
31st Jul 2026403 AMAQI
29°C26/32°C
31st Jul 2026444 AMAQI
31st Jul 2026425 AMAQI
31st Jul 2026466 AMAQI
31st Jul 2026427 AMAQI
31st Jul 2026388 AMAQI
31st Jul 2026519 AMAQI
31st Jul 20265010 AMAQI
31st Jul 20267111 AMAQI
31st Jul 20266712 PMAQI
31st Jul 2026701 PMAQI
31st Jul 2026782 PMAQI
31st Jul 2026553 PMAQI
31st Jul 2026624 PMAQI
31st Jul 2026625 PMAQI
31st Jul 2026566 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026428 PMAQI
31st Jul 2026499 PMAQI
31st Jul 20265910 PMAQI
31st Jul 20264811 PMAQI
1st Aug 20265212 AMAQI
1st Aug 2026511 AMAQI
1st Aug 2026542 AMAQI
1st Aug 2026563 AMAQI
29°C26/32°C
1st Aug 2026564 AMAQI
1st Aug 2026575 AMAQI
1st Aug 2026596 AMAQI
1st Aug 2026587 AMAQI
1st Aug 2026558 AMAQI
1st Aug 2026639 AMAQI
1st Aug 20266810 AMAQI
1st Aug 20267611 AMAQI
1st Aug 20267312 PMAQI
1st Aug 2026681 PMAQI
1st Aug 2026692 PMAQI
1st Aug 2026713 PMAQI
1st Aug 2026704 PMAQI
1st Aug 2026705 PMAQI
1st Aug 2026866 PMAQI
1st Aug 2026827 PMAQI
1st Aug 2026748 PMAQI
1st Aug 2026679 PMAQI
1st Aug 20266410 PMAQI
1st Aug 20266811 PMAQI
2nd Aug 20266312 AMAQI
2nd Aug 2026641 AMAQI
2nd Aug 2026662 AMAQI
2nd Aug 2026703 AMAQI
29°C26/32°C
2nd Aug 2026694 AMAQI
2nd Aug 2026655 AMAQI
2nd Aug 2026666 AMAQI
2nd Aug 2026647 AMAQI
2nd Aug 2026698 AMAQI
2nd Aug 2026719 AMAQI
2nd Aug 20268310 AMAQI
2nd Aug 20268811 AMAQI
2nd Aug 20268712 PMAQI
2nd Aug 2026901 PMAQI
2nd Aug 2026532 PMAQI
2nd Aug 2026463 PMAQI
2nd Aug 2026424 PMAQI
2nd Aug 2026405 PMAQI
2nd Aug 2026316 PMAQI
2nd Aug 2026177 PMAQI
2nd Aug 2026218 PMAQI
2nd Aug 2026469 PMAQI
2nd Aug 20264410 PMAQI
2nd Aug 20261411 PMAQI
3rd Aug 2026812 AMAQI
3rd Aug 2026131 AMAQI
3rd Aug 2026102 AMAQI
3rd Aug 202693 AMAQI
28°C24/32°C
3rd Aug 202684 AMAQI
3rd Aug 2026125 AMAQI
3rd Aug 2026126 AMAQI
3rd Aug 2026147 AMAQI
3rd Aug 2026238 AMAQI
3rd Aug 2026219 AMAQI
3rd Aug 20262110 AMAQI
3rd Aug 20261811 AMAQI
3rd Aug 20262912 PMAQI
3rd Aug 2026231 PMAQI
3rd Aug 2026292 PMAQI
3rd Aug 2026313 PMAQI
3rd Aug 2026294 PMAQI
3rd Aug 2026275 PMAQI
3rd Aug 2026316 PMAQI
3rd Aug 2026347 PMAQI
3rd Aug 2026298 PMAQI
3rd Aug 2026259 PMAQI
3rd Aug 20262210 PMAQI
3rd Aug 20262011 PMAQI
4th Aug 20262312 AMAQI
4th Aug 2026231 AMAQI
4th Aug 2026272 AMAQI
4th Aug 2026233 AMAQI
24°C23/27°C
4th Aug 2026234 AMAQI
4th Aug 2026215 AMAQI
4th Aug 2026236 AMAQI
4th Aug 2026297 AMAQI
4th Aug 2026298 AMAQI
4th Aug 2026259 AMAQI
4th Aug 20262710 AMAQI
4th Aug 20262711 AMAQI
4th Aug 20263112 PMAQI
4th Aug 2026291 PMAQI
4th Aug 2026272 PMAQI
4th Aug 2026233 PMAQI
4th Aug 2026294 PMAQI
4th Aug 2026315 PMAQI
4th Aug 2026316 PMAQI
4th Aug 2026337 PMAQI
4th Aug 2026318 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20263110 PMAQI
4th Aug 20263111 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026292 AMAQI
5th Aug 2026273 AMAQI
24°C23/27°C
5th Aug 2026274 AMAQI
5th Aug 2026295 AMAQI
5th Aug 2026296 AMAQI
5th Aug 2026297 AMAQI
5th Aug 2026278 AMAQI
5th Aug 2026279 AMAQI
5th Aug 20262910 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20262512 PMAQI
5th Aug 2026251 PMAQI
5th Aug 2026272 PMAQI
5th Aug 2026233 PMAQI
5th Aug 2026274 PMAQI
5th Aug 2026255 PMAQI
5th Aug 2026256 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026239 PMAQI
5th Aug 20262110 PMAQI
5th Aug 20262111 PMAQI
6th Aug 20262112 AMAQI
6th Aug 2026211 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026273 AMAQI
25°C22/29°C
6th Aug 2026274 AMAQI
6th Aug 2026255 AMAQI
6th Aug 2026256 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026258 AMAQI
6th Aug 2026219 AMAQI
6th Aug 20262910 AMAQI
6th Aug 20262111 AMAQI
6th Aug 20262312 PMAQI
6th Aug 2026231 PMAQI
6th Aug 2026232 PMAQI
6th Aug 2026213 PMAQI
6th Aug 2026254 PMAQI
6th Aug 2026295 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026217 PMAQI
6th Aug 2026218 PMAQI
6th Aug 2026259 PMAQI
6th Aug 20262310 PMAQI
6th Aug 20262111 PMAQI
7th Aug 20262312 AMAQI
7th Aug 2026251 AMAQI
7th Aug 2026252 AMAQI
7th Aug 2026253 AMAQI
28°C24/32°C
7th Aug 2026274 AMAQI
7th Aug 2026275 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026298 AMAQI
7th Aug 2026279 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20262512 PMAQI
7th Aug 2026251 PMAQI
7th Aug 2026252 PMAQI
7th Aug 2026273 PMAQI
7th Aug 2026234 PMAQI
7th Aug 2026235 PMAQI
7th Aug 2026256 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026258 PMAQI
7th Aug 2026239 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20262311 PMAQI
8th Aug 20262112 AMAQI
8th Aug 2026211 AMAQI
8th Aug 2026212 AMAQI
8th Aug 2026253 AMAQI
28°C25/30°C
8th Aug 2026214 AMAQI
8th Aug 2026215 AMAQI
8th Aug 2026256 AMAQI
8th Aug 2026297 AMAQI
8th Aug 2026258 AMAQI
8th Aug 2026239 AMAQI
8th Aug 20262110 AMAQI
8th Aug 20262511 AMAQI
8th Aug 20262512 PMAQI
8th Aug 2026211 PMAQI
8th Aug 2026252 PMAQI
8th Aug 2026253 PMAQI
8th Aug 2026294 PMAQI
8th Aug 2026235 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026237 PMAQI
8th Aug 2026218 PMAQI
8th Aug 2026219 PMAQI
8th Aug 20262310 PMAQI
8th Aug 20262111 PMAQI
9th Aug 20262112 AMAQI
9th Aug 2026211 AMAQI
9th Aug 2026212 AMAQI
9th Aug 2026253 AMAQI
27°C24/30°C
9th Aug 2026254 AMAQI
4 AM9th Aug 2026255 AMAQI
9th Aug 2026256 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026218 AMAQI
9th Aug 2026219 AMAQI
9th Aug 20262710 AMAQI
9th Aug 20262511 AMAQI
11 AM9th Aug 20262712 PMAQI
9th Aug 2026271 PMAQI
9th Aug 2026272 PMAQI
9th Aug 2026313 PMAQI
9th Aug 2026364 PMAQI
9th Aug 2026405 PMAQI
9th Aug 2026366 PMAQI
6 PM9th Aug 2026337 PMAQI
9th Aug 2026318 PMAQI
9th Aug 2026339 PMAQI
9th Aug 20263610 PMAQI
9th Aug 20263311 PMAQI
11 PM3 AM
27°C24/30°C
Day time
Avg. Highest Time
12 PM - 6 PM
43AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
4 AM - 8 AM
35AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 PM to 6 PM (Avg. 43), while the lowest AQI was between 4 AM to 8 AM (Avg. 35).
Night time
Avg. Highest Time
7 PM
40AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
2 AM - 3 AM
34AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 40), while the lowest AQI was between 2 AM to 3 AM (Avg. 34).
2026 Days Vs Air Quality
Tsuiheiji, Ichihara, Chiba, Japan
2026
86%
190
14%
31
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Good
190 DaysModerate
31 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 221 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
Tsuiheiji, Ichihara, 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
24AQI (US)
24AQI (US)
2nd January 2026
22AQI (US)
22AQI (US)
3rd January 2026
17AQI (US)
17AQI (US)
4th January 2026
29AQI (US)
29AQI (US)
5th January 2026
37AQI (US)
37AQI (US)
6th January 2026
18AQI (US)
18AQI (US)
7th January 2026
33AQI (US)
33AQI (US)
8th January 2026
43AQI (US)
43AQI (US)
9th January 2026
18AQI (US)
18AQI (US)
10th January 2026
40AQI (US)
40AQI (US)
11th January 2026
33AQI (US)
33AQI (US)
12th January 2026
21AQI (US)
21AQI (US)
13th January 2026
31AQI (US)
31AQI (US)
14th January 2026
17AQI (US)
17AQI (US)
15th January 2026
28AQI (US)
28AQI (US)
16th January 2026
45AQI (US)
45AQI (US)
17th January 2026
51AQI (US)
51AQI (US)
18th January 2026
28AQI (US)
28AQI (US)
19th January 2026
38AQI (US)
38AQI (US)
20th January 2026
34AQI (US)
34AQI (US)
21st January 2026
13AQI (US)
13AQI (US)
22nd January 2026
24AQI (US)
24AQI (US)
23rd January 2026
37AQI (US)
37AQI (US)
24th January 2026
32AQI (US)
32AQI (US)
25th January 2026
43AQI (US)
43AQI (US)
26th January 2026
26AQI (US)
26AQI (US)
27th January 2026
43AQI (US)
43AQI (US)
28th January 2026
30AQI (US)
30AQI (US)
29th January 2026
18AQI (US)
18AQI (US)
30th January 2026
37AQI (US)
37AQI (US)
31st January 2026
39AQI (US)
39AQI (US)
1st February 2026
40AQI (US)
40AQI (US)
2nd February 2026
36AQI (US)
36AQI (US)
3rd February 2026
17AQI (US)
17AQI (US)
4th February 2026
39AQI (US)
39AQI (US)
5th February 2026
63AQI (US)
63AQI (US)
6th February 2026
57AQI (US)
57AQI (US)
7th February 2026
13AQI (US)
13AQI (US)
8th February 2026
13AQI (US)
13AQI (US)
9th February 2026
35AQI (US)
35AQI (US)
10th February 2026
35AQI (US)
35AQI (US)
11th February 2026
41AQI (US)
41AQI (US)
12th February 2026
33AQI (US)
33AQI (US)
13th February 2026
41AQI (US)
41AQI (US)
14th February 2026
60AQI (US)
60AQI (US)
15th February 2026
52AQI (US)
52AQI (US)
16th February 2026
50AQI (US)
50AQI (US)
17th February 2026
16AQI (US)
16AQI (US)
18th February 2026
40AQI (US)
40AQI (US)
19th February 2026
12AQI (US)
12AQI (US)
20th February 2026
24AQI (US)
24AQI (US)
21st February 2026
52AQI (US)
52AQI (US)
22nd February 2026
42AQI (US)
42AQI (US)
23rd February 2026
28AQI (US)
28AQI (US)
24th February 2026
37AQI (US)
37AQI (US)
25th February 2026
25AQI (US)
25AQI (US)
26th February 2026
27AQI (US)
27AQI (US)
27th February 2026
43AQI (US)
43AQI (US)
28th February 2026
38AQI (US)
38AQI (US)
1st March 2026
35AQI (US)
35AQI (US)
2nd March 2026
57AQI (US)
57AQI (US)
3rd March 2026
41AQI (US)
41AQI (US)
4th March 2026
46AQI (US)
46AQI (US)
5th March 2026
47AQI (US)
47AQI (US)
6th March 2026
46AQI (US)
46AQI (US)
7th March 2026
39AQI (US)
39AQI (US)
8th March 2026
32AQI (US)
32AQI (US)
9th March 2026
39AQI (US)
39AQI (US)
10th March 2026
56AQI (US)
56AQI (US)
11th March 2026
54AQI (US)
54AQI (US)
12th March 2026
60AQI (US)
60AQI (US)
13th March 2026
36AQI (US)
36AQI (US)
14th March 2026
44AQI (US)
44AQI (US)
15th March 2026
56AQI (US)
56AQI (US)
16th March 2026
46AQI (US)
46AQI (US)
17th March 2026
45AQI (US)
45AQI (US)
18th March 2026
46AQI (US)
46AQI (US)
19th March 2026
37AQI (US)
37AQI (US)
20th March 2026
34AQI (US)
34AQI (US)
21st March 2026
41AQI (US)
41AQI (US)
22nd March 2026
49AQI (US)
49AQI (US)
23rd March 2026
35AQI (US)
35AQI (US)
24th March 2026
35AQI (US)
35AQI (US)
25th March 2026
59AQI (US)
59AQI (US)
26th March 2026
26AQI (US)
26AQI (US)
27th March 2026
29AQI (US)
29AQI (US)
28th March 2026
53AQI (US)
53AQI (US)
29th March 2026
56AQI (US)
56AQI (US)
30th March 2026
48AQI (US)
48AQI (US)
31st March 2026
18AQI (US)
18AQI (US)
1st April 2026
29AQI (US)
29AQI (US)
2nd April 2026
34AQI (US)
34AQI (US)
3rd April 2026
45AQI (US)
45AQI (US)
4th April 2026
45AQI (US)
45AQI (US)
5th April 2026
36AQI (US)
36AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
26AQI (US)
26AQI (US)
8th April 2026
22AQI (US)
22AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
47AQI (US)
47AQI (US)
11th April 2026
45AQI (US)
45AQI (US)
12th April 2026
33AQI (US)
33AQI (US)
13th April 2026
35AQI (US)
35AQI (US)
14th April 2026
38AQI (US)
38AQI (US)
15th April 2026
33AQI (US)
33AQI (US)
16th April 2026
32AQI (US)
32AQI (US)
17th April 2026
34AQI (US)
34AQI (US)
18th April 2026
29AQI (US)
29AQI (US)
19th April 2026
31AQI (US)
31AQI (US)
20th April 2026
31AQI (US)
31AQI (US)
21st April 2026
36AQI (US)
36AQI (US)
22nd April 2026
45AQI (US)
45AQI (US)
23rd April 2026
39AQI (US)
39AQI (US)
24th April 2026
33AQI (US)
33AQI (US)
25th April 2026
45AQI (US)
45AQI (US)
26th April 2026
51AQI (US)
51AQI (US)
27th April 2026
48AQI (US)
48AQI (US)
28th April 2026
42AQI (US)
42AQI (US)
29th April 2026
40AQI (US)
40AQI (US)
30th April 2026
35AQI (US)
35AQI (US)
1st May 2026
20AQI (US)
20AQI (US)
2nd May 2026
17AQI (US)
17AQI (US)
3rd May 2026
50AQI (US)
50AQI (US)
4th May 2026
29AQI (US)
29AQI (US)
5th May 2026
22AQI (US)
22AQI (US)
6th May 2026
28AQI (US)
28AQI (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
29AQI (US)
29AQI (US)
11th May 2026
26AQI (US)
26AQI (US)
12th May 2026
30AQI (US)
30AQI (US)
13th May 2026
40AQI (US)
40AQI (US)
14th May 2026
33AQI (US)
33AQI (US)
15th May 2026
33AQI (US)
33AQI (US)
16th May 2026
86AQI (US)
86AQI (US)
17th May 2026
68AQI (US)
68AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
49AQI (US)
49AQI (US)
20th May 2026
61AQI (US)
61AQI (US)
21st May 2026
59AQI (US)
59AQI (US)
22nd May 2026
58AQI (US)
58AQI (US)
23rd May 2026
53AQI (US)
53AQI (US)
24th May 2026
57AQI (US)
57AQI (US)
25th May 2026
47AQI (US)
47AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
24AQI (US)
24AQI (US)
28th May 2026
25AQI (US)
25AQI (US)
29th May 2026
24AQI (US)
24AQI (US)
30th May 2026
20AQI (US)
20AQI (US)
31st May 2026
26AQI (US)
26AQI (US)
1st June 2026
32AQI (US)
32AQI (US)
2nd June 2026
17AQI (US)
17AQI (US)
3rd June 2026
16AQI (US)
16AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
22AQI (US)
22AQI (US)
7th June 2026
21AQI (US)
21AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
22AQI (US)
22AQI (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
44AQI (US)
44AQI (US)
14th June 2026
42AQI (US)
42AQI (US)
15th June 2026
14AQI (US)
14AQI (US)
16th June 2026
24AQI (US)
24AQI (US)
17th June 2026
23AQI (US)
23AQI (US)
18th June 2026
23AQI (US)
23AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
20AQI (US)
20AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
21AQI (US)
21AQI (US)
25th June 2026
26AQI (US)
26AQI (US)
26th June 2026
28AQI (US)
28AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
22AQI (US)
22AQI (US)
1st July 2026
36AQI (US)
36AQI (US)
2nd July 2026
24AQI (US)
24AQI (US)
3rd July 2026
25AQI (US)
25AQI (US)
4th July 2026
26AQI (US)
26AQI (US)
5th July 2026
19AQI (US)
19AQI (US)
6th July 2026
24AQI (US)
24AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
23AQI (US)
23AQI (US)
9th July 2026
22AQI (US)
22AQI (US)
10th July 2026
22AQI (US)
22AQI (US)
11th July 2026
23AQI (US)
23AQI (US)
12th July 2026
27AQI (US)
27AQI (US)
13th July 2026
42AQI (US)
42AQI (US)
14th July 2026
49AQI (US)
49AQI (US)
15th July 2026
42AQI (US)
42AQI (US)
16th July 2026
73AQI (US)
73AQI (US)
17th July 2026
52AQI (US)
52AQI (US)
18th July 2026
15AQI (US)
15AQI (US)
19th July 2026
19AQI (US)
19AQI (US)
20th July 2026
34AQI (US)
34AQI (US)
21st July 2026
53AQI (US)
53AQI (US)
22nd July 2026
70AQI (US)
70AQI (US)
23rd July 2026
58AQI (US)
58AQI (US)
24th July 2026
32AQI (US)
32AQI (US)
25th July 2026
44AQI (US)
44AQI (US)
26th July 2026
33AQI (US)
33AQI (US)
27th July 2026
25AQI (US)
25AQI (US)
28th July 2026
33AQI (US)
33AQI (US)
29th July 2026
33AQI (US)
33AQI (US)
30th July 2026
45AQI (US)
45AQI (US)
31st July 2026
54AQI (US)
54AQI (US)
1st August 2026
65AQI (US)
65AQI (US)
2nd August 2026
57AQI (US)
57AQI (US)
3rd August 2026
21AQI (US)
21AQI (US)
4th August 2026
27AQI (US)
27AQI (US)
5th August 2026
26AQI (US)
26AQI (US)
6th August 2026
24AQI (US)
24AQI (US)
7th August 2026
25AQI (US)
25AQI (US)
8th August 2026
23AQI (US)
23AQI (US)
9th August 2026
28AQI (US)
28AQI (US)
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
31AQI (US)
36AQI (US)
43AQI (US)
37AQI (US)
38AQI (US)
24AQI (US)
36AQI (US)
33AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
30
1
23
5
23
8
29
1
23
8
30
25
6
7
2
190
31
Highest AQI (US) recorded in
March43AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202540AQI (US)
28
3
27
1
25
6
29
1
30
1
29
1
23
8
23
8
30
18
13
14
16
18
13
294
71
Highest AQI (US) recorded in
October50AQI (US)
Lowest AQI (US) recorded in
June32AQI (US)
202438AQI (US)
26
4
28
1
25
6
21
9
27
4
27
3
13
18
29
2
26
4
31
27
3
30
1
310
55
Highest AQI (US) recorded in
July52AQI (US)
Lowest AQI (US) recorded in
October31AQI (US)
202340AQI (US)
25
5
25
3
25
6
23
7
27
4
19
11
22
9
31
29
1
27
4
20
9
18
13
291
72
Highest AQI (US) recorded in
April47AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202250AQI (US)
29
1
19
2
17
6
1
1
1
5
13
4
23
8
20
10
12
9
1
18
10
24
7
19
11
26
5
221
73
1
1
1
5
Highest AQI (US) recorded in
March103AQI (US)
Lowest AQI (US) recorded in
August17AQI (US)
202139AQI (US)
24
6
25
3
28
3
28
2
21
10
27
3
26
5
25
6
28
2
30
1
25
5
25
6
312
52
Highest AQI (US) recorded in
May44AQI (US)
Lowest AQI (US) recorded in
April35AQI (US)
202035AQI (US)
12
1
21
17
1
23
7
30
1
23
8
19
30
1
21
9
26
5
222
33
Highest AQI (US) recorded in
August41AQI (US)
Lowest AQI (US) recorded in
April28AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2022(Avg.)
50AQI (US)Least Polluted Year Recorded
2020(Avg.)
35AQI (US)Tsuiheiji's annual 2026 AQI (US) (35) shows an average percentage change of -12.1% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (39), 2022 (50), 2023 (40), 2024 (38), 2025 (40).
