Marubayashi, Koga, Ibaraki, 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
Marubayashi, Koga, Ibaraki, Japan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
4th Aug 2025
57AQILowest AQI recorded on
30th Aug 2024
11AQISame Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 33 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Marubayashi, Koga, Ibaraki, Japan
AQI
Day
Night
.
4 AM8th Aug 2026
6 PM
3 AM9th Aug 2026
Day time
Avg. Highest Time
9AM8th Aug
38AQI
Avg. Lowest Time
4AM8th Aug
23AQI
Night time
Avg. Highest Time
2AM9th Aug
40AQI
Avg. Lowest Time
10PM8th Aug
25AQI
In the last 24 hours,
Marubayashi's AQI reached its highest point of 40 at 2 AM during the Night, while the lowest point, 23, was recorded at 4 AM during the Day between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Marubayashi, Koga, Ibaraki, 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 202684 AMAQI
11th Jul 202685 AMAQI
11th Jul 202686 AMAQI
11th Jul 202687 AMAQI
11th Jul 2026308 AMAQI
11th Jul 2026309 AMAQI
11th Jul 20263110 AMAQI
11th Jul 20263011 AMAQI
11th Jul 20262812 PMAQI
11th Jul 2026241 PMAQI
11th Jul 2026262 PMAQI
11th Jul 2026233 PMAQI
11th Jul 2026284 PMAQI
11th Jul 2026285 PMAQI
11th Jul 2026286 PMAQI
11th Jul 2026287 PMAQI
11th Jul 2026208 PMAQI
11th Jul 2026199 PMAQI
11th Jul 20262010 PMAQI
11th Jul 20263111 PMAQI
12th Jul 20261812 AMAQI
12th Jul 2026281 AMAQI
12th Jul 2026202 AMAQI
12th Jul 2026203 AMAQI
28°C24/33°C
12th Jul 2026204 AMAQI
12th Jul 2026295 AMAQI
12th Jul 2026286 AMAQI
12th Jul 2026227 AMAQI
12th Jul 2026228 AMAQI
12th Jul 2026299 AMAQI
12th Jul 20262810 AMAQI
12th Jul 20262411 AMAQI
12th Jul 20262112 PMAQI
12th Jul 2026221 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026243 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026285 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026317 PMAQI
12th Jul 2026308 PMAQI
12th Jul 2026269 PMAQI
12th Jul 20263010 PMAQI
12th Jul 20263211 PMAQI
13th Jul 20263112 AMAQI
13th Jul 2026321 AMAQI
13th Jul 2026322 AMAQI
13th Jul 2026313 AMAQI
26°C24/29°C
13th Jul 2026264 AMAQI
13th Jul 2026305 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026287 AMAQI
13th Jul 2026288 AMAQI
13th Jul 2026309 AMAQI
13th Jul 20262810 AMAQI
13th Jul 20262811 AMAQI
13th Jul 20262812 PMAQI
13th Jul 2026241 PMAQI
13th Jul 2026222 PMAQI
13th Jul 2026333 PMAQI
13th Jul 2026514 PMAQI
13th Jul 2026535 PMAQI
13th Jul 2026556 PMAQI
13th Jul 2026627 PMAQI
13th Jul 2026528 PMAQI
13th Jul 2026519 PMAQI
13th Jul 20265510 PMAQI
13th Jul 20265811 PMAQI
14th Jul 20265512 AMAQI
14th Jul 2026591 AMAQI
14th Jul 2026532 AMAQI
14th Jul 2026333 AMAQI
27°C24/31°C
14th Jul 2026314 AMAQI
14th Jul 2026255 AMAQI
14th Jul 2026366 AMAQI
14th Jul 2026337 AMAQI
14th Jul 2026308 AMAQI
14th Jul 2026359 AMAQI
14th Jul 20265710 AMAQI
14th Jul 20265211 AMAQI
14th Jul 20266512 PMAQI
14th Jul 2026631 PMAQI
14th Jul 2026542 PMAQI
14th Jul 2026563 PMAQI
14th Jul 2026524 PMAQI
14th Jul 2026425 PMAQI
14th Jul 2026336 PMAQI
14th Jul 2026467 PMAQI
14th Jul 2026368 PMAQI
14th Jul 2026569 PMAQI
14th Jul 20263010 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263212 AMAQI
15th Jul 2026341 AMAQI
15th Jul 2026272 AMAQI
15th Jul 2026313 AMAQI
30°C24/36°C
15th Jul 2026424 AMAQI
15th Jul 2026295 AMAQI
15th Jul 2026296 AMAQI
15th Jul 2026317 AMAQI
15th Jul 2026328 AMAQI
15th Jul 2026309 AMAQI
15th Jul 20263210 AMAQI
15th Jul 20262611 AMAQI
15th Jul 20263112 PMAQI
15th Jul 2026521 PMAQI
15th Jul 2026592 PMAQI
15th Jul 2026423 PMAQI
15th Jul 2026444 PMAQI
15th Jul 2026545 PMAQI
15th Jul 2026536 PMAQI
15th Jul 2026547 PMAQI
15th Jul 2026608 PMAQI
15th Jul 2026469 PMAQI
15th Jul 20264210 PMAQI
15th Jul 20265711 PMAQI
16th Jul 20263112 AMAQI
16th Jul 2026401 AMAQI
16th Jul 2026442 AMAQI
16th Jul 2026463 AMAQI
31°C26/37°C
16th Jul 2026444 AMAQI
16th Jul 2026445 AMAQI
16th Jul 2026546 AMAQI
16th Jul 2026517 AMAQI
16th Jul 2026668 AMAQI
16th Jul 2026549 AMAQI
16th Jul 20265910 AMAQI
16th Jul 20265711 AMAQI
16th Jul 20267012 PMAQI
16th Jul 2026561 PMAQI
16th Jul 2026672 PMAQI
16th Jul 2026553 PMAQI
16th Jul 2026574 PMAQI
16th Jul 2026805 PMAQI
16th Jul 2026726 PMAQI
16th Jul 2026707 PMAQI
16th Jul 2026628 PMAQI
16th Jul 2026519 PMAQI
16th Jul 20264610 PMAQI
16th Jul 20265211 PMAQI
17th Jul 20263812 AMAQI
17th Jul 2026481 AMAQI
17th Jul 2026442 AMAQI
17th Jul 2026383 AMAQI
30°C26/36°C
17th Jul 2026314 AMAQI
17th Jul 2026335 AMAQI
17th Jul 2026406 AMAQI
17th Jul 2026487 AMAQI
17th Jul 2026508 AMAQI
17th Jul 2026549 AMAQI
17th Jul 20266010 AMAQI
17th Jul 20266211 AMAQI
17th Jul 20265912 PMAQI
17th Jul 2026531 PMAQI
17th Jul 2026592 PMAQI
17th Jul 2026513 PMAQI
17th Jul 2026514 PMAQI
17th Jul 2026425 PMAQI
17th Jul 2026366 PMAQI
17th Jul 2026337 PMAQI
17th Jul 2026368 PMAQI
17th Jul 2026369 PMAQI
17th Jul 20263310 PMAQI
17th Jul 20263111 PMAQI
18th Jul 20262912 AMAQI
18th Jul 2026271 AMAQI
18th Jul 2026232 AMAQI
18th Jul 2026253 AMAQI
27°C25/30°C
18th Jul 2026214 AMAQI
18th Jul 2026215 AMAQI
18th Jul 2026236 AMAQI
18th Jul 2026257 AMAQI
18th Jul 2026238 AMAQI
18th Jul 2026239 AMAQI
18th Jul 20262510 AMAQI
18th Jul 20262511 AMAQI
18th Jul 20262912 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026253 PMAQI
18th Jul 2026444 PMAQI
18th Jul 2026325 PMAQI
18th Jul 2026256 PMAQI
18th Jul 2026257 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026299 PMAQI
18th Jul 20262310 PMAQI
18th Jul 20262911 PMAQI
19th Jul 20263212 AMAQI
19th Jul 2026251 AMAQI
19th Jul 2026252 AMAQI
19th Jul 2026323 AMAQI
27°C24/29°C
19th Jul 2026344 AMAQI
19th Jul 2026255 AMAQI
19th Jul 2026236 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026318 AMAQI
19th Jul 2026279 AMAQI
19th Jul 20262310 AMAQI
19th Jul 20262111 AMAQI
19th Jul 20262712 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026293 PMAQI
19th Jul 2026314 PMAQI
19th Jul 2026255 PMAQI
19th Jul 2026296 PMAQI
19th Jul 2026297 PMAQI
19th Jul 2026368 PMAQI
19th Jul 2026389 PMAQI
19th Jul 20264410 PMAQI
19th Jul 20263211 PMAQI
20th Jul 20262712 AMAQI
20th Jul 2026381 AMAQI
20th Jul 2026402 AMAQI
20th Jul 2026333 AMAQI
28°C24/33°C
20th Jul 2026324 AMAQI
20th Jul 2026295 AMAQI
20th Jul 2026316 AMAQI
20th Jul 2026277 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026349 AMAQI
20th Jul 20263310 AMAQI
20th Jul 20264211 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026331 PMAQI
20th Jul 2026292 PMAQI
20th Jul 2026293 PMAQI
20th Jul 2026364 PMAQI
20th Jul 2026275 PMAQI
20th Jul 2026216 PMAQI
20th Jul 2026217 PMAQI
20th Jul 2026238 PMAQI
20th Jul 2026259 PMAQI
20th Jul 20263110 PMAQI
20th Jul 20263411 PMAQI
21st Jul 20262912 AMAQI
21st Jul 2026291 AMAQI
21st Jul 2026332 AMAQI
21st Jul 2026333 AMAQI
32°C26/37°C
21st Jul 2026384 AMAQI
21st Jul 2026425 AMAQI
21st Jul 2026366 AMAQI
21st Jul 2026347 AMAQI
21st Jul 2026408 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20264010 AMAQI
21st Jul 20264011 AMAQI
21st Jul 2026521 PMAQI
21st Jul 2026522 PMAQI
21st Jul 2026503 PMAQI
21st Jul 2026484 PMAQI
21st Jul 2026495 PMAQI
21st Jul 2026446 PMAQI
21st Jul 2026887 PMAQI
21st Jul 2026498 PMAQI
21st Jul 2026519 PMAQI
21st Jul 20265410 PMAQI
21st Jul 20265311 PMAQI
22nd Jul 20265312 AMAQI
22nd Jul 2026531 AMAQI
22nd Jul 2026512 AMAQI
22nd Jul 2026543 AMAQI
32°C27/38°C
22nd Jul 2026554 AMAQI
22nd Jul 2026535 AMAQI
22nd Jul 2026576 AMAQI
22nd Jul 2026567 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026579 AMAQI
22nd Jul 20265510 AMAQI
22nd Jul 20265711 AMAQI
22nd Jul 20265812 PMAQI
22nd Jul 2026581 PMAQI
22nd Jul 2026582 PMAQI
22nd Jul 2026583 PMAQI
22nd Jul 2026604 PMAQI
22nd Jul 2026595 PMAQI
22nd Jul 2026626 PMAQI
22nd Jul 2026627 PMAQI
22nd Jul 2026638 PMAQI
22nd Jul 2026649 PMAQI
22nd Jul 20266010 PMAQI
22nd Jul 20264711 PMAQI
23rd Jul 20264012 AMAQI
23rd Jul 2026361 AMAQI
23rd Jul 2026362 AMAQI
23rd Jul 2026383 AMAQI
32°C27/39°C
23rd Jul 2026404 AMAQI
23rd Jul 2026425 AMAQI
23rd Jul 2026446 AMAQI
23rd Jul 2026447 AMAQI
23rd Jul 2026468 AMAQI
23rd Jul 2026539 AMAQI
23rd Jul 20265510 AMAQI
23rd Jul 20265211 AMAQI
23rd Jul 20265312 PMAQI
23rd Jul 2026551 PMAQI
23rd Jul 2026582 PMAQI
23rd Jul 2026563 PMAQI
23rd Jul 2026594 PMAQI
23rd Jul 2026565 PMAQI
23rd Jul 2026496 PMAQI
23rd Jul 2026387 PMAQI
23rd Jul 2026338 PMAQI
23rd Jul 2026339 PMAQI
23rd Jul 20263110 PMAQI
23rd Jul 20262911 PMAQI
24th Jul 20262112 AMAQI
24th Jul 2026211 AMAQI
24th Jul 2026232 AMAQI
24th Jul 2026213 AMAQI
31°C26/38°C
24th Jul 2026234 AMAQI
24th Jul 2026255 AMAQI
24th Jul 2026236 AMAQI
24th Jul 2026217 AMAQI
24th Jul 2026258 AMAQI
24th Jul 2026259 AMAQI
24th Jul 20262510 AMAQI
24th Jul 20262311 AMAQI
24th Jul 20262712 PMAQI
24th Jul 2026311 PMAQI
24th Jul 2026402 PMAQI
24th Jul 2026443 PMAQI
24th Jul 2026444 PMAQI
24th Jul 2026465 PMAQI
24th Jul 2026426 PMAQI
24th Jul 2026407 PMAQI
24th Jul 2026318 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20262710 PMAQI
24th Jul 20262511 PMAQI
25th Jul 20262512 AMAQI
25th Jul 2026211 AMAQI
25th Jul 2026212 AMAQI
25th Jul 2026253 AMAQI
27°C25/33°C
25th Jul 2026254 AMAQI
25th Jul 2026425 AMAQI
25th Jul 2026446 AMAQI
25th Jul 2026427 AMAQI
25th Jul 2026428 AMAQI
25th Jul 2026329 AMAQI
25th Jul 20262110 AMAQI
25th Jul 20262711 AMAQI
25th Jul 20263312 PMAQI
25th Jul 2026361 PMAQI
25th Jul 2026332 PMAQI
25th Jul 2026313 PMAQI
25th Jul 2026294 PMAQI
25th Jul 2026255 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026277 PMAQI
25th Jul 2026368 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20263110 PMAQI
25th Jul 20263311 PMAQI
26th Jul 20264412 AMAQI
26th Jul 2026311 AMAQI
26th Jul 2026312 AMAQI
26th Jul 2026293 AMAQI
28°C24/34°C
26th Jul 2026274 AMAQI
26th Jul 2026315 AMAQI
26th Jul 2026296 AMAQI
26th Jul 2026297 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20262310 AMAQI
26th Jul 20262111 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026291 PMAQI
26th Jul 2026312 PMAQI
26th Jul 2026233 PMAQI
26th Jul 2026294 PMAQI
26th Jul 2026305 PMAQI
26th Jul 2026216 PMAQI
26th Jul 2026217 PMAQI
26th Jul 2026408 PMAQI
26th Jul 2026259 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262311 PMAQI
27th Jul 20262512 AMAQI
27th Jul 2026331 AMAQI
27th Jul 2026422 AMAQI
27th Jul 2026363 AMAQI
27°C25/32°C
27th Jul 2026404 AMAQI
27th Jul 2026215 AMAQI
27th Jul 2026236 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026238 AMAQI
27th Jul 2026219 AMAQI
27th Jul 20262310 AMAQI
27th Jul 20262911 AMAQI
27th Jul 20262512 PMAQI
27th Jul 2026211 PMAQI
27th Jul 2026272 PMAQI
27th Jul 2026293 PMAQI
27th Jul 2026234 PMAQI
27th Jul 2026255 PMAQI
27th Jul 2026256 PMAQI
27th Jul 2026297 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026259 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262911 PMAQI
28th Jul 20262112 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026293 AMAQI
25°C22/31°C
28th Jul 2026254 AMAQI
28th Jul 2026215 AMAQI
28th Jul 2026296 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026298 AMAQI
28th Jul 2026259 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262911 AMAQI
28th Jul 20262512 PMAQI
28th Jul 2026331 PMAQI
28th Jul 2026272 PMAQI
28th Jul 2026213 PMAQI
28th Jul 2026214 PMAQI
28th Jul 2026465 PMAQI
28th Jul 2026336 PMAQI
28th Jul 2026427 PMAQI
28th Jul 2026518 PMAQI
28th Jul 2026539 PMAQI
28th Jul 20263810 PMAQI
28th Jul 20263311 PMAQI
29th Jul 20263312 AMAQI
29th Jul 2026401 AMAQI
29th Jul 2026402 AMAQI
29th Jul 2026383 AMAQI
25°C23/30°C
29th Jul 2026384 AMAQI
29th Jul 2026405 AMAQI
29th Jul 2026366 AMAQI
29th Jul 2026367 AMAQI
29th Jul 2026298 AMAQI
29th Jul 2026299 AMAQI
29th Jul 20263310 AMAQI
29th Jul 20262911 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026271 PMAQI
29th Jul 2026212 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026295 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026339 PMAQI
29th Jul 20263810 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20262512 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026232 AMAQI
30th Jul 2026253 AMAQI
28°C23/34°C
30th Jul 2026214 AMAQI
30th Jul 2026215 AMAQI
30th Jul 2026216 AMAQI
30th Jul 2026237 AMAQI
30th Jul 2026258 AMAQI
30th Jul 2026239 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262712 PMAQI
30th Jul 2026271 PMAQI
30th Jul 2026292 PMAQI
30th Jul 2026273 PMAQI
30th Jul 2026234 PMAQI
30th Jul 2026255 PMAQI
30th Jul 2026346 PMAQI
30th Jul 2026317 PMAQI
30th Jul 2026428 PMAQI
30th Jul 2026559 PMAQI
30th Jul 20263610 PMAQI
30th Jul 20264811 PMAQI
31st Jul 20264212 AMAQI
31st Jul 2026501 AMAQI
31st Jul 2026332 AMAQI
31st Jul 2026333 AMAQI
30°C25/36°C
31st Jul 2026464 AMAQI
31st Jul 2026465 AMAQI
31st Jul 2026446 AMAQI
31st Jul 2026337 AMAQI
31st Jul 2026448 AMAQI
31st Jul 2026509 AMAQI
31st Jul 20265210 AMAQI
31st Jul 20266411 AMAQI
31st Jul 20264012 PMAQI
31st Jul 2026501 PMAQI
31st Jul 2026512 PMAQI
31st Jul 2026313 PMAQI
31st Jul 2026444 PMAQI
31st Jul 2026555 PMAQI
31st Jul 2026486 PMAQI
31st Jul 2026527 PMAQI
31st Jul 2026528 PMAQI
31st Jul 2026369 PMAQI
31st Jul 20264410 PMAQI
31st Jul 20264011 PMAQI
1st Aug 20264012 AMAQI
1st Aug 2026251 AMAQI
1st Aug 2026312 AMAQI
1st Aug 2026383 AMAQI
29°C26/33°C
1st Aug 2026294 AMAQI
1st Aug 2026365 AMAQI
1st Aug 2026386 AMAQI
1st Aug 2026317 AMAQI
1st Aug 2026528 AMAQI
1st Aug 2026519 AMAQI
1st Aug 20265510 AMAQI
1st Aug 20264011 AMAQI
1st Aug 20264012 PMAQI
1st Aug 2026561 PMAQI
1st Aug 2026442 PMAQI
1st Aug 2026603 PMAQI
1st Aug 2026364 PMAQI
1st Aug 2026335 PMAQI
1st Aug 2026336 PMAQI
1st Aug 2026317 PMAQI
1st Aug 2026448 PMAQI
1st Aug 2026319 PMAQI
1st Aug 20266010 PMAQI
1st Aug 20266611 PMAQI
2nd Aug 20266612 AMAQI
2nd Aug 2026601 AMAQI
2nd Aug 2026622 AMAQI
2nd Aug 2026653 AMAQI
30°C25/36°C
2nd Aug 2026674 AMAQI
2nd Aug 2026575 AMAQI
2nd Aug 2026516 AMAQI
2nd Aug 2026547 AMAQI
2nd Aug 2026608 AMAQI
2nd Aug 2026569 AMAQI
2nd Aug 20265510 AMAQI
2nd Aug 20265211 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026501 PMAQI
2nd Aug 2026502 PMAQI
2nd Aug 2026543 PMAQI
2nd Aug 2026494 PMAQI
2nd Aug 2026465 PMAQI
2nd Aug 2026346 PMAQI
2nd Aug 2026257 PMAQI
2nd Aug 2026218 PMAQI
2nd Aug 2026319 PMAQI
2nd Aug 20262510 PMAQI
2nd Aug 20262911 PMAQI
3rd Aug 20261812 AMAQI
3rd Aug 2026251 AMAQI
3rd Aug 2026252 AMAQI
3rd Aug 2026253 AMAQI
29°C23/35°C
3rd Aug 202684 AMAQI
3rd Aug 202685 AMAQI
3rd Aug 202676 AMAQI
3rd Aug 2026107 AMAQI
3rd Aug 202688 AMAQI
3rd Aug 2026129 AMAQI
3rd Aug 20261210 AMAQI
3rd Aug 20261011 AMAQI
3rd Aug 2026812 PMAQI
3rd Aug 2026141 PMAQI
3rd Aug 202682 PMAQI
3rd Aug 2026143 PMAQI
3rd Aug 2026124 PMAQI
3rd Aug 2026125 PMAQI
3rd Aug 2026196 PMAQI
3rd Aug 2026197 PMAQI
3rd Aug 2026108 PMAQI
3rd Aug 2026219 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20261411 PMAQI
4th Aug 20261712 AMAQI
4th Aug 2026141 AMAQI
4th Aug 2026122 AMAQI
4th Aug 2026123 AMAQI
23°C22/25°C
4th Aug 202694 AMAQI
4th Aug 2026255 AMAQI
4th Aug 2026256 AMAQI
4th Aug 2026257 AMAQI
4th Aug 2026258 AMAQI
4th Aug 2026259 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262911 AMAQI
4th Aug 20262312 PMAQI
4th Aug 2026211 PMAQI
4th Aug 2026212 PMAQI
4th Aug 2026213 PMAQI
4th Aug 2026234 PMAQI
4th Aug 2026215 PMAQI
4th Aug 2026386 PMAQI
4th Aug 2026337 PMAQI
4th Aug 2026338 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20262910 PMAQI
4th Aug 20262911 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026212 AMAQI
5th Aug 2026253 AMAQI
24°C20/29°C
5th Aug 2026294 AMAQI
5th Aug 2026295 AMAQI
5th Aug 2026276 AMAQI
5th Aug 2026277 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20262310 AMAQI
5th Aug 20262311 AMAQI
5th Aug 20262112 PMAQI
5th Aug 2026271 PMAQI
5th Aug 2026312 PMAQI
5th Aug 2026213 PMAQI
5th Aug 2026214 PMAQI
5th Aug 2026215 PMAQI
5th Aug 2026216 PMAQI
5th Aug 2026297 PMAQI
5th Aug 2026298 PMAQI
5th Aug 2026259 PMAQI
5th Aug 20263210 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20262512 AMAQI
6th Aug 2026251 AMAQI
6th Aug 2026252 AMAQI
6th Aug 2026253 AMAQI
26°C21/32°C
6th Aug 2026234 AMAQI
6th Aug 2026235 AMAQI
6th Aug 2026256 AMAQI
6th Aug 2026257 AMAQI
6th Aug 2026278 AMAQI
6th Aug 2026219 AMAQI
6th Aug 20262310 AMAQI
6th Aug 20262311 AMAQI
6th Aug 20263112 PMAQI
6th Aug 2026271 PMAQI
6th Aug 2026312 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026214 PMAQI
6th Aug 2026215 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026297 PMAQI
6th Aug 2026338 PMAQI
6th Aug 2026329 PMAQI
6th Aug 20262510 PMAQI
6th Aug 20262511 PMAQI
7th Aug 20262512 AMAQI
7th Aug 2026231 AMAQI
7th Aug 2026302 AMAQI
7th Aug 2026323 AMAQI
28°C25/33°C
7th Aug 2026254 AMAQI
7th Aug 2026325 AMAQI
7th Aug 2026326 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026258 AMAQI
7th Aug 2026259 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20262511 AMAQI
7th Aug 20262512 PMAQI
7th Aug 2026321 PMAQI
7th Aug 2026332 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026294 PMAQI
7th Aug 2026295 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026257 PMAQI
7th Aug 2026258 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20262510 PMAQI
7th Aug 20263211 PMAQI
8th Aug 20263012 AMAQI
8th Aug 2026301 AMAQI
8th Aug 2026382 AMAQI
8th Aug 2026303 AMAQI
30°C25/35°C
8th Aug 2026234 AMAQI
8th Aug 2026275 AMAQI
8th Aug 2026276 AMAQI
8th Aug 2026257 AMAQI
8th Aug 2026328 AMAQI
8th Aug 2026389 AMAQI
8th Aug 20263810 AMAQI
8th Aug 20262711 AMAQI
8th Aug 20262712 PMAQI
8th Aug 2026291 PMAQI
8th Aug 2026292 PMAQI
8th Aug 2026333 PMAQI
8th Aug 2026274 PMAQI
8th Aug 2026315 PMAQI
8th Aug 2026256 PMAQI
8th Aug 2026317 PMAQI
8th Aug 2026318 PMAQI
8th Aug 2026259 PMAQI
8th Aug 20262510 PMAQI
8th Aug 20263211 PMAQI
9th Aug 20263612 AMAQI
9th Aug 2026341 AMAQI
9th Aug 2026402 AMAQI
9th Aug 2026383 AMAQI
30°C26/36°C
9th Aug 2026384 AMAQI
4 AM9th Aug 2026335 AMAQI
9th Aug 2026406 AMAQI
9th Aug 2026367 AMAQI
9th Aug 2026388 AMAQI
9th Aug 2026339 AMAQI
9th Aug 20262910 AMAQI
9th Aug 20263411 AMAQI
11 AM9th Aug 20262312 PMAQI
9th Aug 2026211 PMAQI
9th Aug 2026252 PMAQI
9th Aug 2026213 PMAQI
9th Aug 2026214 PMAQI
9th Aug 2026215 PMAQI
9th Aug 2026506 PMAQI
6 PM9th Aug 2026257 PMAQI
9th Aug 2026408 PMAQI
9th Aug 2026469 PMAQI
9th Aug 20264210 PMAQI
9th Aug 20262911 PMAQI
11 PM3 AM
28°C24/33°C
Day time
Avg. Highest Time
1 PM - 6 PM
36AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
4 AM - 5 AM
31AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 36), while the lowest AQI was between 4 AM to 5 AM (Avg. 31).
Night time
Avg. Highest Time
7 PM - 11 PM
36AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 36), while the lowest AQI was between 12 AM to 12 AM (Avg. 32).
2026 Days Vs Air Quality
Marubayashi, Koga, Ibaraki, Japan
2026
87%
192
13%
29
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Good
192 DaysModerate
29 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% 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
Marubayashi, Koga, Ibaraki, 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
23AQI (US)
23AQI (US)
2nd January 2026
23AQI (US)
23AQI (US)
3rd January 2026
24AQI (US)
24AQI (US)
4th January 2026
22AQI (US)
22AQI (US)
5th January 2026
45AQI (US)
45AQI (US)
6th January 2026
24AQI (US)
24AQI (US)
7th January 2026
38AQI (US)
38AQI (US)
8th January 2026
41AQI (US)
41AQI (US)
9th January 2026
30AQI (US)
30AQI (US)
10th January 2026
44AQI (US)
44AQI (US)
11th January 2026
40AQI (US)
40AQI (US)
12th January 2026
18AQI (US)
18AQI (US)
13th January 2026
36AQI (US)
36AQI (US)
14th January 2026
15AQI (US)
15AQI (US)
15th January 2026
35AQI (US)
35AQI (US)
16th January 2026
50AQI (US)
50AQI (US)
17th January 2026
45AQI (US)
45AQI (US)
18th January 2026
26AQI (US)
26AQI (US)
19th January 2026
44AQI (US)
44AQI (US)
20th January 2026
35AQI (US)
35AQI (US)
21st January 2026
12AQI (US)
12AQI (US)
22nd January 2026
18AQI (US)
18AQI (US)
23rd January 2026
19AQI (US)
19AQI (US)
24th January 2026
39AQI (US)
39AQI (US)
25th January 2026
44AQI (US)
44AQI (US)
26th January 2026
20AQI (US)
20AQI (US)
27th January 2026
27AQI (US)
27AQI (US)
28th January 2026
21AQI (US)
21AQI (US)
29th January 2026
20AQI (US)
20AQI (US)
30th January 2026
36AQI (US)
36AQI (US)
31st January 2026
38AQI (US)
38AQI (US)
1st February 2026
34AQI (US)
34AQI (US)
2nd February 2026
41AQI (US)
41AQI (US)
3rd February 2026
30AQI (US)
30AQI (US)
4th February 2026
39AQI (US)
39AQI (US)
5th February 2026
50AQI (US)
50AQI (US)
6th February 2026
51AQI (US)
51AQI (US)
7th February 2026
18AQI (US)
18AQI (US)
8th February 2026
12AQI (US)
12AQI (US)
9th February 2026
32AQI (US)
32AQI (US)
10th February 2026
41AQI (US)
41AQI (US)
11th February 2026
58AQI (US)
58AQI (US)
12th February 2026
35AQI (US)
35AQI (US)
13th February 2026
41AQI (US)
41AQI (US)
14th February 2026
54AQI (US)
54AQI (US)
15th February 2026
72AQI (US)
72AQI (US)
16th February 2026
48AQI (US)
48AQI (US)
17th February 2026
14AQI (US)
14AQI (US)
18th February 2026
31AQI (US)
31AQI (US)
19th February 2026
27AQI (US)
27AQI (US)
20th February 2026
33AQI (US)
33AQI (US)
21st February 2026
44AQI (US)
44AQI (US)
22nd February 2026
49AQI (US)
49AQI (US)
23rd February 2026
42AQI (US)
42AQI (US)
24th February 2026
34AQI (US)
34AQI (US)
25th February 2026
34AQI (US)
34AQI (US)
26th February 2026
10AQI (US)
10AQI (US)
27th February 2026
30AQI (US)
30AQI (US)
28th February 2026
42AQI (US)
42AQI (US)
1st March 2026
36AQI (US)
36AQI (US)
2nd March 2026
65AQI (US)
65AQI (US)
3rd March 2026
42AQI (US)
42AQI (US)
4th March 2026
58AQI (US)
58AQI (US)
5th March 2026
59AQI (US)
59AQI (US)
6th March 2026
53AQI (US)
53AQI (US)
7th March 2026
46AQI (US)
46AQI (US)
8th March 2026
42AQI (US)
42AQI (US)
9th March 2026
45AQI (US)
45AQI (US)
10th March 2026
59AQI (US)
59AQI (US)
11th March 2026
60AQI (US)
60AQI (US)
12th March 2026
66AQI (US)
66AQI (US)
13th March 2026
40AQI (US)
40AQI (US)
14th March 2026
32AQI (US)
32AQI (US)
15th March 2026
14AQI (US)
14AQI (US)
16th March 2026
31AQI (US)
31AQI (US)
17th March 2026
54AQI (US)
54AQI (US)
18th March 2026
58AQI (US)
58AQI (US)
19th March 2026
43AQI (US)
43AQI (US)
20th March 2026
32AQI (US)
32AQI (US)
21st March 2026
50AQI (US)
50AQI (US)
22nd March 2026
51AQI (US)
51AQI (US)
23rd March 2026
51AQI (US)
51AQI (US)
24th March 2026
44AQI (US)
44AQI (US)
25th March 2026
67AQI (US)
67AQI (US)
26th March 2026
22AQI (US)
22AQI (US)
27th March 2026
18AQI (US)
18AQI (US)
28th March 2026
47AQI (US)
47AQI (US)
29th March 2026
52AQI (US)
52AQI (US)
30th March 2026
58AQI (US)
58AQI (US)
31st March 2026
28AQI (US)
28AQI (US)
1st April 2026
16AQI (US)
16AQI (US)
2nd April 2026
23AQI (US)
23AQI (US)
3rd April 2026
47AQI (US)
47AQI (US)
4th April 2026
51AQI (US)
51AQI (US)
5th April 2026
36AQI (US)
36AQI (US)
6th April 2026
20AQI (US)
20AQI (US)
7th April 2026
39AQI (US)
39AQI (US)
8th April 2026
22AQI (US)
22AQI (US)
9th April 2026
33AQI (US)
33AQI (US)
10th April 2026
45AQI (US)
45AQI (US)
11th April 2026
36AQI (US)
36AQI (US)
12th April 2026
29AQI (US)
29AQI (US)
13th April 2026
32AQI (US)
32AQI (US)
14th April 2026
36AQI (US)
36AQI (US)
15th April 2026
35AQI (US)
35AQI (US)
16th April 2026
32AQI (US)
32AQI (US)
17th April 2026
35AQI (US)
35AQI (US)
18th April 2026
32AQI (US)
32AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
33AQI (US)
33AQI (US)
21st April 2026
38AQI (US)
38AQI (US)
22nd April 2026
46AQI (US)
46AQI (US)
23rd April 2026
35AQI (US)
35AQI (US)
24th April 2026
31AQI (US)
31AQI (US)
25th April 2026
44AQI (US)
44AQI (US)
26th April 2026
50AQI (US)
50AQI (US)
27th April 2026
48AQI (US)
48AQI (US)
28th April 2026
41AQI (US)
41AQI (US)
29th April 2026
37AQI (US)
37AQI (US)
30th April 2026
39AQI (US)
39AQI (US)
1st May 2026
47AQI (US)
47AQI (US)
2nd May 2026
50AQI (US)
50AQI (US)
3rd May 2026
47AQI (US)
47AQI (US)
4th May 2026
27AQI (US)
27AQI (US)
5th May 2026
22AQI (US)
22AQI (US)
6th May 2026
29AQI (US)
29AQI (US)
7th May 2026
29AQI (US)
29AQI (US)
8th May 2026
24AQI (US)
24AQI (US)
9th May 2026
24AQI (US)
24AQI (US)
10th May 2026
27AQI (US)
27AQI (US)
11th May 2026
28AQI (US)
28AQI (US)
12th May 2026
34AQI (US)
34AQI (US)
13th May 2026
37AQI (US)
37AQI (US)
14th May 2026
31AQI (US)
31AQI (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
62AQI (US)
62AQI (US)
21st May 2026
59AQI (US)
59AQI (US)
22nd May 2026
60AQI (US)
60AQI (US)
23rd May 2026
52AQI (US)
52AQI (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
23AQI (US)
23AQI (US)
28th May 2026
15AQI (US)
15AQI (US)
29th May 2026
23AQI (US)
23AQI (US)
30th May 2026
23AQI (US)
23AQI (US)
31st May 2026
25AQI (US)
25AQI (US)
1st June 2026
30AQI (US)
30AQI (US)
2nd June 2026
29AQI (US)
29AQI (US)
3rd June 2026
12AQI (US)
12AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
21AQI (US)
21AQI (US)
6th June 2026
19AQI (US)
19AQI (US)
7th June 2026
20AQI (US)
20AQI (US)
8th June 2026
20AQI (US)
20AQI (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
22AQI (US)
22AQI (US)
13th June 2026
26AQI (US)
26AQI (US)
14th June 2026
49AQI (US)
49AQI (US)
15th June 2026
16AQI (US)
16AQI (US)
16th June 2026
18AQI (US)
18AQI (US)
17th June 2026
24AQI (US)
24AQI (US)
18th June 2026
24AQI (US)
24AQI (US)
19th June 2026
27AQI (US)
27AQI (US)
20th June 2026
22AQI (US)
22AQI (US)
21st June 2026
19AQI (US)
19AQI (US)
22nd June 2026
19AQI (US)
19AQI (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
29AQI (US)
29AQI (US)
27th June 2026
26AQI (US)
26AQI (US)
28th June 2026
26AQI (US)
26AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
24AQI (US)
24AQI (US)
1st July 2026
25AQI (US)
25AQI (US)
2nd July 2026
19AQI (US)
19AQI (US)
3rd July 2026
16AQI (US)
16AQI (US)
4th July 2026
32AQI (US)
32AQI (US)
5th July 2026
22AQI (US)
22AQI (US)
6th July 2026
24AQI (US)
24AQI (US)
7th July 2026
25AQI (US)
25AQI (US)
8th July 2026
19AQI (US)
19AQI (US)
9th July 2026
22AQI (US)
22AQI (US)
10th July 2026
26AQI (US)
26AQI (US)
11th July 2026
24AQI (US)
24AQI (US)
12th July 2026
25AQI (US)
25AQI (US)
13th July 2026
37AQI (US)
37AQI (US)
14th July 2026
44AQI (US)
44AQI (US)
15th July 2026
40AQI (US)
40AQI (US)
16th July 2026
55AQI (US)
55AQI (US)
17th July 2026
44AQI (US)
44AQI (US)
18th July 2026
26AQI (US)
26AQI (US)
19th July 2026
29AQI (US)
29AQI (US)
20th July 2026
30AQI (US)
30AQI (US)
21st July 2026
44AQI (US)
44AQI (US)
22nd July 2026
57AQI (US)
57AQI (US)
23rd July 2026
45AQI (US)
45AQI (US)
24th July 2026
29AQI (US)
29AQI (US)
25th July 2026
30AQI (US)
30AQI (US)
26th July 2026
28AQI (US)
28AQI (US)
27th July 2026
27AQI (US)
27AQI (US)
28th July 2026
30AQI (US)
30AQI (US)
29th July 2026
31AQI (US)
31AQI (US)
30th July 2026
28AQI (US)
28AQI (US)
31st July 2026
45AQI (US)
45AQI (US)
1st August 2026
42AQI (US)
42AQI (US)
2nd August 2026
49AQI (US)
49AQI (US)
3rd August 2026
14AQI (US)
14AQI (US)
4th August 2026
23AQI (US)
23AQI (US)
5th August 2026
26AQI (US)
26AQI (US)
6th August 2026
26AQI (US)
26AQI (US)
7th August 2026
27AQI (US)
27AQI (US)
8th August 2026
30AQI (US)
30AQI (US)
9th August 2026
33AQI (US)
33AQI (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)
37AQI (US)
46AQI (US)
36AQI (US)
40AQI (US)
24AQI (US)
32AQI (US)
30AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
31
24
4
17
14
29
1
23
8
30
29
2
9
192
29
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202540AQI (US)
30
1
28
27
4
29
1
30
1
29
1
25
6
25
6
30
15
16
16
14
16
15
300
65
Highest AQI (US) recorded in
October50AQI (US)
Lowest AQI (US) recorded in
May30AQI (US)
202434AQI (US)
30
1
25
4
29
2
27
3
28
3
28
2
23
8
31
29
1
30
1
30
30
1
340
26
Highest AQI (US) recorded in
July43AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202337AQI (US)
11
2
28
3
24
6
27
4
31
30
31
25
4
26
5
233
24
Highest AQI (US) recorded in
April43AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202236AQI (US)
24
6
20
1
27
4
16
1
28
3
27
3
18
3
1
28
31
10
2
230
23
Highest AQI (US) recorded in
January40AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
202137AQI (US)
22
9
20
8
24
5
20
1
28
3
26
4
31
29
2
28
2
27
4
22
8
23
8
300
54
Highest AQI (US) recorded in
December43AQI (US)
Lowest AQI (US) recorded in
March31AQI (US)
202035AQI (US)
10
3
19
2
17
1
25
5
31
25
6
19
28
3
17
13
22
9
213
42
Highest AQI (US) recorded in
November45AQI (US)
Lowest AQI (US) recorded in
December25AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
40AQI (US)Least Polluted Year Recorded
2024(Avg.)
34AQI (US)Marubayashi's annual 2026 AQI (US) (35) shows an average percentage change of -3.8% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (37), 2022 (36), 2023 (37), 2024 (34), 2025 (40).
