Masago, Narashino, 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
Masago, Narashino, 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 2026
15AQISame Day Analysis (12th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 23 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 11th Aug - 12th Aug 2026
Masago, Narashino, Chiba, Japan
AQI
Day
Night
.
4 AM11th Aug 2026
6 PM
3 AM12th Aug 2026
Day time
Avg. Highest Time
8AM11th Aug
46AQI
Avg. Lowest Time
5PM11th Aug
23AQI
Night time
Avg. Highest Time
11PM11th Aug
31AQI
Avg. Lowest Time
3AM12th Aug
21AQI
In the last 24 hours,
Masago's AQI reached its highest point of 46 at 8 AM during the Day, while the lowest point, 21, was recorded at 3 AM during the Night between 11th Aug and 12th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Masago, Narashino, Chiba, Japan
JulAug
14th - 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 - 10th10th - 11th11th - 12th12th
Day
Night
14th Jul 2026504 AMAQI
14th Jul 2026625 AMAQI
14th Jul 2026466 AMAQI
14th Jul 2026367 AMAQI
14th Jul 2026368 AMAQI
14th Jul 2026469 AMAQI
14th Jul 20263010 AMAQI
14th Jul 20262411 AMAQI
14th Jul 20262412 PMAQI
14th Jul 2026751 PMAQI
14th Jul 2026382 PMAQI
14th Jul 2026223 PMAQI
14th Jul 2026244 PMAQI
14th Jul 2026285 PMAQI
14th Jul 2026306 PMAQI
14th Jul 2026307 PMAQI
14th Jul 2026308 PMAQI
14th Jul 2026349 PMAQI
14th Jul 20263210 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263212 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026312 AMAQI
15th Jul 2026303 AMAQI
27°C23/30°C
15th Jul 2026284 AMAQI
15th Jul 2026325 AMAQI
15th Jul 2026216 AMAQI
15th Jul 2026407 AMAQI
15th Jul 2026318 AMAQI
15th Jul 2026519 AMAQI
15th Jul 20266510 AMAQI
15th Jul 20267311 AMAQI
15th Jul 20267112 PMAQI
15th Jul 2026421 PMAQI
15th Jul 2026462 PMAQI
15th Jul 2026563 PMAQI
15th Jul 2026594 PMAQI
15th Jul 2026585 PMAQI
15th Jul 2026536 PMAQI
15th Jul 2026547 PMAQI
15th Jul 2026518 PMAQI
15th Jul 2026519 PMAQI
15th Jul 20265310 PMAQI
15th Jul 20265511 PMAQI
16th Jul 20266612 AMAQI
16th Jul 2026521 AMAQI
16th Jul 2026492 AMAQI
16th Jul 2026533 AMAQI
28°C25/32°C
16th Jul 2026824 AMAQI
16th Jul 2026845 AMAQI
16th Jul 2026786 AMAQI
16th Jul 2026807 AMAQI
16th Jul 2026818 AMAQI
16th Jul 2026849 AMAQI
16th Jul 20267910 AMAQI
16th Jul 20268011 AMAQI
16th Jul 20268112 PMAQI
16th Jul 2026831 PMAQI
16th Jul 2026862 PMAQI
16th Jul 2026863 PMAQI
16th Jul 2026924 PMAQI
16th Jul 2026895 PMAQI
16th Jul 2026766 PMAQI
16th Jul 2026817 PMAQI
16th Jul 2026808 PMAQI
16th Jul 2026719 PMAQI
16th Jul 20266710 PMAQI
16th Jul 20267411 PMAQI
17th Jul 20266812 AMAQI
17th Jul 2026631 AMAQI
17th Jul 2026602 AMAQI
17th Jul 2026593 AMAQI
28°C25/31°C
17th Jul 2026584 AMAQI
17th Jul 2026595 AMAQI
17th Jul 2026626 AMAQI
17th Jul 2026657 AMAQI
17th Jul 2026648 AMAQI
17th Jul 2026639 AMAQI
17th Jul 20267110 AMAQI
17th Jul 20267811 AMAQI
17th Jul 20268012 PMAQI
17th Jul 2026641 PMAQI
17th Jul 2026292 PMAQI
17th Jul 2026173 PMAQI
17th Jul 2026364 PMAQI
17th Jul 2026485 PMAQI
17th Jul 2026536 PMAQI
17th Jul 2026547 PMAQI
17th Jul 2026588 PMAQI
17th Jul 2026409 PMAQI
17th Jul 20263610 PMAQI
17th Jul 20262911 PMAQI
18th Jul 20262512 AMAQI
18th Jul 2026231 AMAQI
18th Jul 2026272 AMAQI
18th Jul 2026253 AMAQI
27°C25/30°C
18th Jul 2026124 AMAQI
18th Jul 2026105 AMAQI
18th Jul 2026176 AMAQI
18th Jul 2026147 AMAQI
18th Jul 2026178 AMAQI
18th Jul 2026129 AMAQI
18th Jul 20261710 AMAQI
18th Jul 2026811 AMAQI
18th Jul 20261012 PMAQI
18th Jul 2026131 PMAQI
18th Jul 2026122 PMAQI
18th Jul 202683 PMAQI
18th Jul 2026104 PMAQI
18th Jul 202695 PMAQI
18th Jul 2026106 PMAQI
18th Jul 2026107 PMAQI
18th Jul 202668 PMAQI
18th Jul 2026129 PMAQI
18th Jul 20261210 PMAQI
18th Jul 20261011 PMAQI
19th Jul 20262312 AMAQI
19th Jul 2026271 AMAQI
19th Jul 2026212 AMAQI
19th Jul 2026163 AMAQI
26°C24/29°C
19th Jul 2026174 AMAQI
19th Jul 2026215 AMAQI
19th Jul 2026186 AMAQI
19th Jul 2026187 AMAQI
19th Jul 2026318 AMAQI
19th Jul 2026259 AMAQI
19th Jul 20262110 AMAQI
19th Jul 20261211 AMAQI
19th Jul 20261712 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026253 PMAQI
19th Jul 2026214 PMAQI
19th Jul 2026215 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°C24/29°C
20th Jul 2026234 AMAQI
20th Jul 2026235 AMAQI
20th Jul 2026276 AMAQI
20th Jul 2026257 AMAQI
20th Jul 2026218 AMAQI
20th Jul 2026239 AMAQI
20th Jul 20262710 AMAQI
20th Jul 20262111 AMAQI
20th Jul 20262112 PMAQI
20th Jul 2026271 PMAQI
20th Jul 2026292 PMAQI
20th Jul 2026443 PMAQI
20th Jul 2026524 PMAQI
20th Jul 2026405 PMAQI
20th Jul 2026486 PMAQI
20th Jul 2026467 PMAQI
20th Jul 2026448 PMAQI
20th Jul 2026429 PMAQI
20th Jul 20264010 PMAQI
20th Jul 20263611 PMAQI
21st Jul 20263612 AMAQI
21st Jul 2026331 AMAQI
21st Jul 2026332 AMAQI
21st Jul 2026363 AMAQI
29°C25/33°C
21st Jul 2026424 AMAQI
21st Jul 2026425 AMAQI
21st Jul 2026386 AMAQI
21st Jul 2026337 AMAQI
21st Jul 2026338 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20265710 AMAQI
21st Jul 20265611 AMAQI
21st Jul 2026561 PMAQI
21st Jul 2026572 PMAQI
21st Jul 2026603 PMAQI
21st Jul 2026644 PMAQI
21st Jul 2026625 PMAQI
21st Jul 2026566 PMAQI
21st Jul 2026927 PMAQI
21st Jul 2026498 PMAQI
21st Jul 2026519 PMAQI
21st Jul 20265510 PMAQI
21st Jul 20265611 PMAQI
22nd Jul 20265512 AMAQI
22nd Jul 2026571 AMAQI
22nd Jul 2026622 AMAQI
22nd Jul 2026603 AMAQI
29°C26/34°C
22nd Jul 2026604 AMAQI
22nd Jul 2026595 AMAQI
22nd Jul 2026646 AMAQI
22nd Jul 2026697 AMAQI
22nd Jul 2026678 AMAQI
22nd Jul 2026689 AMAQI
22nd Jul 20266610 AMAQI
22nd Jul 20267111 AMAQI
22nd Jul 20268212 PMAQI
22nd Jul 2026881 PMAQI
22nd Jul 2026892 PMAQI
22nd Jul 2026853 PMAQI
22nd Jul 2026754 PMAQI
22nd Jul 2026715 PMAQI
22nd Jul 2026736 PMAQI
22nd Jul 2026767 PMAQI
22nd Jul 2026728 PMAQI
22nd Jul 2026839 PMAQI
22nd Jul 20268210 PMAQI
22nd Jul 20268111 PMAQI
23rd Jul 20267912 AMAQI
23rd Jul 2026631 AMAQI
23rd Jul 2026652 AMAQI
23rd Jul 2026643 AMAQI
29°C26/33°C
23rd Jul 2026584 AMAQI
23rd Jul 2026585 AMAQI
23rd Jul 2026636 AMAQI
23rd Jul 2026747 AMAQI
23rd Jul 2026658 AMAQI
23rd Jul 2026809 AMAQI
23rd Jul 20266710 AMAQI
23rd Jul 20267611 AMAQI
23rd Jul 20267512 PMAQI
23rd Jul 2026751 PMAQI
23rd Jul 2026722 PMAQI
23rd Jul 2026673 PMAQI
23rd Jul 2026684 PMAQI
23rd Jul 2026675 PMAQI
23rd Jul 2026566 PMAQI
23rd Jul 2026557 PMAQI
23rd Jul 2026508 PMAQI
23rd Jul 2026429 PMAQI
23rd Jul 20264210 PMAQI
23rd Jul 20264411 PMAQI
24th Jul 20264412 AMAQI
24th Jul 2026461 AMAQI
24th Jul 2026462 AMAQI
24th Jul 2026483 AMAQI
30°C27/35°C
24th Jul 2026464 AMAQI
24th Jul 2026465 AMAQI
24th Jul 2026466 AMAQI
24th Jul 2026487 AMAQI
24th Jul 2026518 AMAQI
24th Jul 2026519 AMAQI
24th Jul 20265010 AMAQI
24th Jul 20265311 AMAQI
24th Jul 20265312 PMAQI
24th Jul 2026551 PMAQI
24th Jul 2026542 PMAQI
24th Jul 2026533 PMAQI
24th Jul 2026504 PMAQI
24th Jul 2026445 PMAQI
24th Jul 2026386 PMAQI
24th Jul 2026407 PMAQI
24th Jul 2026338 PMAQI
24th Jul 2026339 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20262711 PMAQI
25th Jul 20265112 AMAQI
25th Jul 2026401 AMAQI
25th Jul 2026512 AMAQI
25th Jul 2026253 AMAQI
28°C25/31°C
25th Jul 2026214 AMAQI
25th Jul 2026175 AMAQI
25th Jul 2026316 AMAQI
25th Jul 2026367 AMAQI
25th Jul 2026408 AMAQI
25th Jul 2026449 AMAQI
25th Jul 20265210 AMAQI
25th Jul 20265211 AMAQI
25th Jul 20265312 PMAQI
25th Jul 2026581 PMAQI
25th Jul 2026582 PMAQI
25th Jul 2026503 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026385 PMAQI
25th Jul 2026176 PMAQI
25th Jul 2026107 PMAQI
25th Jul 202688 PMAQI
25th Jul 202689 PMAQI
25th Jul 20261210 PMAQI
25th Jul 20261211 PMAQI
26th Jul 20261212 AMAQI
26th Jul 2026101 AMAQI
26th Jul 2026102 AMAQI
26th Jul 2026123 AMAQI
27°C23/32°C
26th Jul 2026124 AMAQI
26th Jul 2026145 AMAQI
26th Jul 2026126 AMAQI
26th Jul 2026197 AMAQI
26th Jul 2026128 AMAQI
26th Jul 2026149 AMAQI
26th Jul 20263310 AMAQI
26th Jul 20266611 AMAQI
26th Jul 20265812 PMAQI
26th Jul 2026441 PMAQI
26th Jul 2026652 PMAQI
26th Jul 2026563 PMAQI
26th Jul 2026404 PMAQI
26th Jul 2026335 PMAQI
26th Jul 2026336 PMAQI
26th Jul 2026127 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026339 PMAQI
26th Jul 20263310 PMAQI
26th Jul 20262911 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026122 AMAQI
27th Jul 2026253 AMAQI
27°C24/30°C
27th Jul 2026214 AMAQI
27th Jul 2026175 AMAQI
27th Jul 2026216 AMAQI
27th Jul 2026237 AMAQI
27th Jul 202688 AMAQI
27th Jul 202689 AMAQI
27th Jul 2026810 AMAQI
27th Jul 2026811 AMAQI
27th Jul 20261912 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026272 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026294 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026256 PMAQI
27th Jul 2026277 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026279 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262911 PMAQI
28th Jul 20262712 AMAQI
28th Jul 2026271 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026213 AMAQI
26°C23/29°C
28th Jul 2026214 AMAQI
28th Jul 2026235 AMAQI
28th Jul 2026236 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026238 AMAQI
28th Jul 2026239 AMAQI
28th Jul 20262110 AMAQI
28th Jul 20262311 AMAQI
28th Jul 20262912 PMAQI
28th Jul 2026291 PMAQI
28th Jul 2026272 PMAQI
28th Jul 2026333 PMAQI
28th Jul 2026334 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026316 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026319 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20262711 PMAQI
29th Jul 20264612 AMAQI
29th Jul 2026481 AMAQI
29th Jul 2026502 AMAQI
29th Jul 2026343 AMAQI
26°C23/29°C
29th Jul 2026534 AMAQI
29th Jul 2026495 AMAQI
29th Jul 2026526 AMAQI
29th Jul 2026487 AMAQI
29th Jul 2026428 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20263810 AMAQI
29th Jul 20263111 AMAQI
29th Jul 20263112 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026272 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20263111 PMAQI
30th Jul 20262912 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026292 AMAQI
30th Jul 2026293 AMAQI
28°C24/33°C
30th Jul 2026334 AMAQI
30th Jul 2026315 AMAQI
30th Jul 2026316 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026278 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20263111 AMAQI
30th Jul 20263112 PMAQI
30th Jul 2026381 PMAQI
30th Jul 2026472 PMAQI
30th Jul 2026533 PMAQI
30th Jul 2026554 PMAQI
30th Jul 2026565 PMAQI
30th Jul 2026556 PMAQI
30th Jul 2026577 PMAQI
30th Jul 2026518 PMAQI
30th Jul 2026509 PMAQI
30th Jul 20265410 PMAQI
30th Jul 20265511 PMAQI
31st Jul 20265712 AMAQI
31st Jul 2026531 AMAQI
31st Jul 2026382 AMAQI
31st Jul 2026363 AMAQI
30°C26/34°C
31st Jul 2026384 AMAQI
31st Jul 2026425 AMAQI
31st Jul 2026426 AMAQI
31st Jul 2026467 AMAQI
31st Jul 2026428 AMAQI
31st Jul 2026469 AMAQI
31st Jul 20264210 AMAQI
31st Jul 20265011 AMAQI
31st Jul 20265412 PMAQI
31st Jul 2026541 PMAQI
31st Jul 2026522 PMAQI
31st Jul 2026443 PMAQI
31st Jul 2026464 PMAQI
31st Jul 2026445 PMAQI
31st Jul 2026506 PMAQI
31st Jul 2026517 PMAQI
31st Jul 2026468 PMAQI
31st Jul 2026509 PMAQI
31st Jul 20264410 PMAQI
31st Jul 20264611 PMAQI
1st Aug 20265112 AMAQI
1st Aug 2026491 AMAQI
1st Aug 2026522 AMAQI
1st Aug 2026543 AMAQI
29°C26/33°C
1st Aug 2026574 AMAQI
1st Aug 2026605 AMAQI
1st Aug 2026586 AMAQI
1st Aug 2026597 AMAQI
1st Aug 2026568 AMAQI
1st Aug 2026669 AMAQI
1st Aug 20267010 AMAQI
1st Aug 20266711 AMAQI
1st Aug 20266612 PMAQI
1st Aug 2026671 PMAQI
1st Aug 2026672 PMAQI
1st Aug 2026683 PMAQI
1st Aug 2026674 PMAQI
1st Aug 2026645 PMAQI
1st Aug 2026736 PMAQI
1st Aug 2026747 PMAQI
1st Aug 2026768 PMAQI
1st Aug 2026819 PMAQI
1st Aug 20268410 PMAQI
1st Aug 20266811 PMAQI
2nd Aug 20266912 AMAQI
2nd Aug 2026711 AMAQI
2nd Aug 2026702 AMAQI
2nd Aug 2026643 AMAQI
29°C26/34°C
2nd Aug 2026654 AMAQI
2nd Aug 2026635 AMAQI
2nd Aug 2026696 AMAQI
2nd Aug 2026697 AMAQI
2nd Aug 2026718 AMAQI
2nd Aug 2026789 AMAQI
2nd Aug 20267110 AMAQI
2nd Aug 20267311 AMAQI
2nd Aug 20267812 PMAQI
2nd Aug 2026811 PMAQI
2nd Aug 2026512 PMAQI
2nd Aug 2026523 PMAQI
2nd Aug 2026314 PMAQI
2nd Aug 2026385 PMAQI
2nd Aug 2026406 PMAQI
2nd Aug 2026217 PMAQI
2nd Aug 2026258 PMAQI
2nd Aug 202689 PMAQI
2nd Aug 2026810 PMAQI
2nd Aug 2026811 PMAQI
3rd Aug 20261212 AMAQI
3rd Aug 202681 AMAQI
3rd Aug 202682 AMAQI
3rd Aug 202683 AMAQI
28°C24/33°C
3rd Aug 2026104 AMAQI
3rd Aug 2026125 AMAQI
3rd Aug 202686 AMAQI
3rd Aug 202687 AMAQI
3rd Aug 2026108 AMAQI
3rd Aug 2026149 AMAQI
3rd Aug 20261710 AMAQI
3rd Aug 20262111 AMAQI
3rd Aug 20261712 PMAQI
3rd Aug 2026121 PMAQI
3rd Aug 2026122 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026125 PMAQI
3rd Aug 2026256 PMAQI
3rd Aug 2026177 PMAQI
3rd Aug 2026198 PMAQI
3rd Aug 2026239 PMAQI
3rd Aug 20261910 PMAQI
3rd Aug 20261711 PMAQI
4th Aug 20261712 AMAQI
4th Aug 2026191 AMAQI
4th Aug 2026192 AMAQI
4th Aug 2026233 AMAQI
24°C23/27°C
4th Aug 2026214 AMAQI
4th Aug 2026135 AMAQI
4th Aug 2026176 AMAQI
4th Aug 2026197 AMAQI
4th Aug 2026258 AMAQI
4th Aug 2026259 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20263611 AMAQI
4th Aug 20262712 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026252 PMAQI
4th Aug 2026213 PMAQI
4th Aug 2026254 PMAQI
4th Aug 2026215 PMAQI
4th Aug 2026236 PMAQI
4th Aug 2026257 PMAQI
4th Aug 2026258 PMAQI
4th Aug 2026259 PMAQI
4th Aug 20262310 PMAQI
4th Aug 20262311 PMAQI
5th Aug 20262312 AMAQI
5th Aug 2026231 AMAQI
5th Aug 2026232 AMAQI
5th Aug 2026213 AMAQI
24°C22/27°C
5th Aug 2026214 AMAQI
5th Aug 2026215 AMAQI
5th Aug 2026236 AMAQI
5th Aug 2026217 AMAQI
5th Aug 2026218 AMAQI
5th Aug 2026219 AMAQI
5th Aug 20262110 AMAQI
5th Aug 20262311 AMAQI
5th Aug 20262312 PMAQI
5th Aug 2026251 PMAQI
5th Aug 2026252 PMAQI
5th Aug 2026273 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026255 PMAQI
5th Aug 2026236 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026238 PMAQI
5th Aug 2026219 PMAQI
5th Aug 20262110 PMAQI
5th Aug 20262311 PMAQI
6th Aug 20262112 AMAQI
6th Aug 2026211 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026233 AMAQI
25°C22/29°C
6th Aug 2026254 AMAQI
6th Aug 2026235 AMAQI
6th Aug 2026256 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026238 AMAQI
6th Aug 2026259 AMAQI
6th Aug 20262510 AMAQI
6th Aug 20262511 AMAQI
6th Aug 20262512 PMAQI
6th Aug 2026291 PMAQI
6th Aug 2026292 PMAQI
6th Aug 2026213 PMAQI
6th Aug 2026214 PMAQI
6th Aug 2026255 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026237 PMAQI
6th Aug 2026218 PMAQI
6th Aug 2026219 PMAQI
6th Aug 20262110 PMAQI
6th Aug 20262311 PMAQI
7th Aug 20262312 AMAQI
7th Aug 2026211 AMAQI
7th Aug 2026212 AMAQI
7th Aug 2026213 AMAQI
28°C24/32°C
7th Aug 2026234 AMAQI
7th Aug 2026255 AMAQI
7th Aug 2026216 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026258 AMAQI
7th Aug 2026259 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20264012 PMAQI
7th Aug 2026461 PMAQI
7th Aug 2026252 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026214 PMAQI
7th Aug 2026235 PMAQI
7th Aug 2026236 PMAQI
7th Aug 2026217 PMAQI
7th Aug 2026238 PMAQI
7th Aug 2026239 PMAQI
7th Aug 20262310 PMAQI
7th Aug 20262111 PMAQI
8th Aug 20262112 AMAQI
8th Aug 2026211 AMAQI
8th Aug 2026232 AMAQI
8th Aug 2026233 AMAQI
28°C25/31°C
8th Aug 2026234 AMAQI
8th Aug 2026235 AMAQI
8th Aug 2026216 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026238 AMAQI
8th Aug 2026219 AMAQI
8th Aug 20262110 AMAQI
8th Aug 20262111 AMAQI
8th Aug 20262312 PMAQI
8th Aug 2026251 PMAQI
8th Aug 2026252 PMAQI
8th Aug 2026273 PMAQI
8th Aug 2026234 PMAQI
8th Aug 2026275 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026237 PMAQI
8th Aug 2026258 PMAQI
8th Aug 2026239 PMAQI
8th Aug 20262310 PMAQI
8th Aug 20262311 PMAQI
9th Aug 20262112 AMAQI
9th Aug 2026211 AMAQI
9th Aug 2026212 AMAQI
9th Aug 2026213 AMAQI
28°C24/32°C
9th Aug 2026214 AMAQI
9th Aug 2026215 AMAQI
9th Aug 2026216 AMAQI
9th Aug 2026217 AMAQI
9th Aug 2026218 AMAQI
9th Aug 2026219 AMAQI
9th Aug 20262110 AMAQI
9th Aug 20262111 AMAQI
9th Aug 20262112 PMAQI
9th Aug 2026211 PMAQI
9th Aug 2026232 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026254 PMAQI
9th Aug 2026315 PMAQI
9th Aug 2026316 PMAQI
9th Aug 2026317 PMAQI
9th Aug 2026298 PMAQI
9th Aug 2026319 PMAQI
9th Aug 20262710 PMAQI
9th Aug 20262511 PMAQI
10th Aug 20262712 AMAQI
10th Aug 2026271 AMAQI
10th Aug 2026252 AMAQI
10th Aug 2026233 AMAQI
27°C24/31°C
10th Aug 2026254 AMAQI
10th Aug 2026235 AMAQI
10th Aug 2026236 AMAQI
10th Aug 2026217 AMAQI
10th Aug 2026218 AMAQI
10th Aug 2026219 AMAQI
10th Aug 20262110 AMAQI
10th Aug 20262111 AMAQI
10th Aug 20262112 PMAQI
10th Aug 2026211 PMAQI
10th Aug 2026212 PMAQI
10th Aug 2026233 PMAQI
10th Aug 2026214 PMAQI
10th Aug 2026215 PMAQI
10th Aug 2026216 PMAQI
10th Aug 2026237 PMAQI
10th Aug 2026218 PMAQI
10th Aug 2026219 PMAQI
10th Aug 20263410 PMAQI
10th Aug 20264011 PMAQI
11th Aug 20263312 AMAQI
11th Aug 2026271 AMAQI
11th Aug 2026252 AMAQI
11th Aug 2026233 AMAQI
26°C23/30°C
11th Aug 2026274 AMAQI
11th Aug 2026295 AMAQI
11th Aug 2026386 AMAQI
11th Aug 2026387 AMAQI
11th Aug 2026468 AMAQI
11th Aug 2026369 AMAQI
11th Aug 20263110 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262312 PMAQI
11th Aug 2026231 PMAQI
11th Aug 2026252 PMAQI
11th Aug 2026273 PMAQI
11th Aug 2026294 PMAQI
11th Aug 2026235 PMAQI
11th Aug 2026276 PMAQI
11th Aug 2026217 PMAQI
11th Aug 2026238 PMAQI
11th Aug 2026239 PMAQI
11th Aug 20262910 PMAQI
11th Aug 20263111 PMAQI
12th Aug 20262712 AMAQI
12th Aug 2026211 AMAQI
12th Aug 2026232 AMAQI
12th Aug 2026213 AMAQI
23°C20/27°C
12th Aug 2026254 AMAQI
4 AM12th Aug 2026235 AMAQI
12th Aug 2026236 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026238 AMAQI
12th Aug 2026219 AMAQI
12th Aug 20262510 AMAQI
12th Aug 20262311 AMAQI
11 AM12th Aug 20262112 PMAQI
12th Aug 2026211 PMAQI
12th Aug 2026212 PMAQI
12th Aug 2026213 PMAQI
12th Aug 2026254 PMAQI
12th Aug 2026255 PMAQI
12th Aug 2026256 PMAQI
6 PM12th Aug 2026237 PMAQI
12th Aug 2026218 PMAQI
12th Aug 2026279 PMAQI
12th Aug 20262110 PMAQI
12th Aug 20262511 PMAQI
11 PM3 AM
23°C21/25°C
Day time
Avg. Highest Time
1 PM
43AQI
1 hours / Day
30 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 1 PM to 1 PM (Avg. 43), while the lowest AQI was between 4 AM to 8 AM (Avg. 35).
Night time
Avg. Highest Time
7 PM
37AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM
33AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 37), while the lowest AQI was between 3 AM to 3 AM (Avg. 33).
2026 Days Vs Air Quality
Masago, Narashino, Chiba, Japan
2026
86%
193
14%
31
Total number of days with different AQI categories in last 224 days in 2026 (141 days remaining)
Good
193 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 224 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
Masago, Narashino, 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
18AQI (US)
18AQI (US)
2nd January 2026
26AQI (US)
26AQI (US)
3rd January 2026
20AQI (US)
20AQI (US)
4th January 2026
32AQI (US)
32AQI (US)
5th January 2026
52AQI (US)
52AQI (US)
6th January 2026
25AQI (US)
25AQI (US)
7th January 2026
36AQI (US)
36AQI (US)
8th January 2026
45AQI (US)
45AQI (US)
9th January 2026
16AQI (US)
16AQI (US)
10th January 2026
43AQI (US)
43AQI (US)
11th January 2026
39AQI (US)
39AQI (US)
12th January 2026
23AQI (US)
23AQI (US)
13th January 2026
46AQI (US)
46AQI (US)
14th January 2026
16AQI (US)
16AQI (US)
15th January 2026
35AQI (US)
35AQI (US)
16th January 2026
52AQI (US)
52AQI (US)
17th January 2026
58AQI (US)
58AQI (US)
18th January 2026
30AQI (US)
30AQI (US)
19th January 2026
40AQI (US)
40AQI (US)
20th January 2026
40AQI (US)
40AQI (US)
21st January 2026
11AQI (US)
11AQI (US)
22nd January 2026
29AQI (US)
29AQI (US)
23rd January 2026
35AQI (US)
35AQI (US)
24th January 2026
40AQI (US)
40AQI (US)
25th January 2026
38AQI (US)
38AQI (US)
26th January 2026
17AQI (US)
17AQI (US)
27th January 2026
38AQI (US)
38AQI (US)
28th January 2026
30AQI (US)
30AQI (US)
29th January 2026
17AQI (US)
17AQI (US)
30th January 2026
22AQI (US)
22AQI (US)
31st January 2026
37AQI (US)
37AQI (US)
1st February 2026
37AQI (US)
37AQI (US)
2nd February 2026
40AQI (US)
40AQI (US)
3rd February 2026
23AQI (US)
23AQI (US)
4th February 2026
40AQI (US)
40AQI (US)
5th February 2026
65AQI (US)
65AQI (US)
6th February 2026
69AQI (US)
69AQI (US)
7th February 2026
12AQI (US)
12AQI (US)
8th February 2026
9AQI (US)
9AQI (US)
9th February 2026
33AQI (US)
33AQI (US)
10th February 2026
42AQI (US)
42AQI (US)
11th February 2026
46AQI (US)
46AQI (US)
12th February 2026
29AQI (US)
29AQI (US)
13th February 2026
43AQI (US)
43AQI (US)
14th February 2026
53AQI (US)
53AQI (US)
15th February 2026
57AQI (US)
57AQI (US)
16th February 2026
50AQI (US)
50AQI (US)
17th February 2026
16AQI (US)
16AQI (US)
18th February 2026
34AQI (US)
34AQI (US)
19th February 2026
27AQI (US)
27AQI (US)
20th February 2026
34AQI (US)
34AQI (US)
21st February 2026
47AQI (US)
47AQI (US)
22nd February 2026
49AQI (US)
49AQI (US)
23rd February 2026
29AQI (US)
29AQI (US)
24th February 2026
34AQI (US)
34AQI (US)
25th February 2026
33AQI (US)
33AQI (US)
26th February 2026
26AQI (US)
26AQI (US)
27th February 2026
43AQI (US)
43AQI (US)
28th February 2026
39AQI (US)
39AQI (US)
1st March 2026
34AQI (US)
34AQI (US)
2nd March 2026
59AQI (US)
59AQI (US)
3rd March 2026
40AQI (US)
40AQI (US)
4th March 2026
48AQI (US)
48AQI (US)
5th March 2026
49AQI (US)
49AQI (US)
6th March 2026
47AQI (US)
47AQI (US)
7th March 2026
41AQI (US)
41AQI (US)
8th March 2026
31AQI (US)
31AQI (US)
9th March 2026
40AQI (US)
40AQI (US)
10th March 2026
57AQI (US)
57AQI (US)
11th March 2026
54AQI (US)
54AQI (US)
12th March 2026
63AQI (US)
63AQI (US)
13th March 2026
35AQI (US)
35AQI (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
49AQI (US)
49AQI (US)
19th March 2026
38AQI (US)
38AQI (US)
20th March 2026
35AQI (US)
35AQI (US)
21st March 2026
39AQI (US)
39AQI (US)
22nd March 2026
47AQI (US)
47AQI (US)
23rd March 2026
46AQI (US)
46AQI (US)
24th March 2026
42AQI (US)
42AQI (US)
25th March 2026
60AQI (US)
60AQI (US)
26th March 2026
29AQI (US)
29AQI (US)
27th March 2026
28AQI (US)
28AQI (US)
28th March 2026
51AQI (US)
51AQI (US)
29th March 2026
56AQI (US)
56AQI (US)
30th March 2026
55AQI (US)
55AQI (US)
31st March 2026
26AQI (US)
26AQI (US)
1st April 2026
27AQI (US)
27AQI (US)
2nd April 2026
10AQI (US)
10AQI (US)
3rd April 2026
39AQI (US)
39AQI (US)
4th April 2026
45AQI (US)
45AQI (US)
5th April 2026
38AQI (US)
38AQI (US)
6th April 2026
29AQI (US)
29AQI (US)
7th April 2026
27AQI (US)
27AQI (US)
8th April 2026
20AQI (US)
20AQI (US)
9th April 2026
27AQI (US)
27AQI (US)
10th April 2026
48AQI (US)
48AQI (US)
11th April 2026
40AQI (US)
40AQI (US)
12th April 2026
24AQI (US)
24AQI (US)
13th April 2026
36AQI (US)
36AQI (US)
14th April 2026
32AQI (US)
32AQI (US)
15th April 2026
35AQI (US)
35AQI (US)
16th April 2026
33AQI (US)
33AQI (US)
17th April 2026
33AQI (US)
33AQI (US)
18th April 2026
31AQI (US)
31AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
32AQI (US)
32AQI (US)
21st April 2026
37AQI (US)
37AQI (US)
22nd April 2026
45AQI (US)
45AQI (US)
23rd April 2026
37AQI (US)
37AQI (US)
24th April 2026
32AQI (US)
32AQI (US)
25th April 2026
45AQI (US)
45AQI (US)
26th April 2026
52AQI (US)
52AQI (US)
27th April 2026
49AQI (US)
49AQI (US)
28th April 2026
43AQI (US)
43AQI (US)
29th April 2026
39AQI (US)
39AQI (US)
30th April 2026
22AQI (US)
22AQI (US)
1st May 2026
41AQI (US)
41AQI (US)
2nd May 2026
48AQI (US)
48AQI (US)
3rd May 2026
43AQI (US)
43AQI (US)
4th May 2026
30AQI (US)
30AQI (US)
5th May 2026
22AQI (US)
22AQI (US)
6th May 2026
29AQI (US)
29AQI (US)
7th May 2026
26AQI (US)
26AQI (US)
8th May 2026
25AQI (US)
25AQI (US)
9th May 2026
19AQI (US)
19AQI (US)
10th May 2026
29AQI (US)
29AQI (US)
11th May 2026
28AQI (US)
28AQI (US)
12th May 2026
31AQI (US)
31AQI (US)
13th May 2026
39AQI (US)
39AQI (US)
14th May 2026
33AQI (US)
33AQI (US)
15th May 2026
34AQI (US)
34AQI (US)
16th May 2026
85AQI (US)
85AQI (US)
17th May 2026
69AQI (US)
69AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
49AQI (US)
49AQI (US)
20th May 2026
62AQI (US)
62AQI (US)
21st May 2026
59AQI (US)
59AQI (US)
22nd May 2026
60AQI (US)
60AQI (US)
23rd May 2026
53AQI (US)
53AQI (US)
24th May 2026
59AQI (US)
59AQI (US)
25th May 2026
46AQI (US)
46AQI (US)
26th May 2026
39AQI (US)
39AQI (US)
27th May 2026
24AQI (US)
24AQI (US)
28th May 2026
26AQI (US)
26AQI (US)
29th May 2026
25AQI (US)
25AQI (US)
30th May 2026
26AQI (US)
26AQI (US)
31st May 2026
35AQI (US)
35AQI (US)
1st June 2026
50AQI (US)
50AQI (US)
2nd June 2026
28AQI (US)
28AQI (US)
3rd June 2026
20AQI (US)
20AQI (US)
4th June 2026
23AQI (US)
23AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
22AQI (US)
22AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
21AQI (US)
21AQI (US)
9th June 2026
23AQI (US)
23AQI (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
42AQI (US)
42AQI (US)
14th June 2026
46AQI (US)
46AQI (US)
15th June 2026
15AQI (US)
15AQI (US)
16th June 2026
23AQI (US)
23AQI (US)
17th June 2026
25AQI (US)
25AQI (US)
18th June 2026
24AQI (US)
24AQI (US)
19th June 2026
25AQI (US)
25AQI (US)
20th June 2026
23AQI (US)
23AQI (US)
21st June 2026
20AQI (US)
20AQI (US)
22nd June 2026
19AQI (US)
19AQI (US)
23rd June 2026
20AQI (US)
20AQI (US)
24th June 2026
22AQI (US)
22AQI (US)
25th June 2026
27AQI (US)
27AQI (US)
26th June 2026
30AQI (US)
30AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
27AQI (US)
27AQI (US)
29th June 2026
26AQI (US)
26AQI (US)
30th June 2026
23AQI (US)
23AQI (US)
1st July 2026
35AQI (US)
35AQI (US)
2nd July 2026
24AQI (US)
24AQI (US)
3rd July 2026
19AQI (US)
19AQI (US)
4th July 2026
38AQI (US)
38AQI (US)
5th July 2026
20AQI (US)
20AQI (US)
6th July 2026
24AQI (US)
24AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
24AQI (US)
24AQI (US)
9th July 2026
24AQI (US)
24AQI (US)
10th July 2026
17AQI (US)
17AQI (US)
11th July 2026
21AQI (US)
21AQI (US)
12th July 2026
27AQI (US)
27AQI (US)
13th July 2026
34AQI (US)
34AQI (US)
14th July 2026
39AQI (US)
39AQI (US)
15th July 2026
46AQI (US)
46AQI (US)
16th July 2026
76AQI (US)
76AQI (US)
17th July 2026
55AQI (US)
55AQI (US)
18th July 2026
14AQI (US)
14AQI (US)
19th July 2026
22AQI (US)
22AQI (US)
20th July 2026
31AQI (US)
31AQI (US)
21st July 2026
49AQI (US)
49AQI (US)
22nd July 2026
71AQI (US)
71AQI (US)
23rd July 2026
64AQI (US)
64AQI (US)
24th July 2026
45AQI (US)
45AQI (US)
25th July 2026
34AQI (US)
34AQI (US)
26th July 2026
29AQI (US)
29AQI (US)
27th July 2026
21AQI (US)
21AQI (US)
28th July 2026
26AQI (US)
26AQI (US)
29th July 2026
35AQI (US)
35AQI (US)
30th July 2026
40AQI (US)
40AQI (US)
31st July 2026
46AQI (US)
46AQI (US)
1st August 2026
65AQI (US)
65AQI (US)
2nd August 2026
53AQI (US)
53AQI (US)
3rd August 2026
15AQI (US)
15AQI (US)
4th August 2026
23AQI (US)
23AQI (US)
5th August 2026
23AQI (US)
23AQI (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
24AQI (US)
24AQI (US)
10th August 2026
24AQI (US)
24AQI (US)
11th August 2026
28AQI (US)
28AQI (US)
12th August 2026
23AQI (US)
23AQI (US)
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
32AQI (US)
38AQI (US)
45AQI (US)
35AQI (US)
40AQI (US)
25AQI (US)
35AQI (US)
29AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
28
3
24
4
22
9
29
1
23
8
30
27
4
10
2
193
31
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202541AQI (US)
28
3
27
1
25
6
28
2
30
1
29
1
23
8
23
8
29
1
13
18
13
17
13
18
281
84
Highest AQI (US) recorded in
October52AQI (US)
Lowest AQI (US) recorded in
May33AQI (US)
202439AQI (US)
29
2
25
2
25
6
21
9
27
4
28
2
14
17
28
3
27
3
30
1
27
3
31
312
52
Highest AQI (US) recorded in
July53AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202344AQI (US)
23
7
24
4
24
7
21
9
24
7
17
13
17
14
27
4
24
6
29
2
21
6
26
3
277
82
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
December40AQI (US)
202244AQI (US)
26
2
18
4
24
7
21
8
24
7
16
14
16
5
1
24
4
24
7
19
11
22
9
235
78
Highest AQI (US) recorded in
June49AQI (US)
Lowest AQI (US) recorded in
August36AQI (US)
202138AQI (US)
22
8
1
23
5
28
3
20
1
26
5
26
4
27
4
25
6
29
1
31
27
3
20
11
304
51
1
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
March30AQI (US)
202037AQI (US)
11
2
20
1
17
1
21
8
29
2
18
13
19
29
2
22
8
24
7
210
44
Highest AQI (US) recorded in
August48AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
44AQI (US)Least Polluted Year Recorded
2026(Avg.)
35AQI (US)Masago's annual 2026 AQI (US) (35) shows an average percentage change of -13.1% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (38), 2022 (44), 2023 (44), 2024 (39), 2025 (41).
