Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Olgii, Bayan Olgii, Mongolia 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+

November Air Quality Analysis

Olgii, Bayan Olgii, Mongolia

2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
5th Nov 2022
184AQI
Lowest AQI recorded on
9th Nov 2024
11AQI

Same Day Analysis (23rd November ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 32 of Good air quality, showing improvement over 2024 and 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 23rd Nov - 24th Nov 2025

Olgii, Bayan Olgii, Mongolia

AQI
Day
Night
.

8 AM23rd Nov 2025

5 PM

7 AM24th Nov 2025

Day time
Avg. Highest Time
1PM23rd Nov

48AQI

Avg. Lowest Time
5PM23rd Nov

32AQI

Night time
Avg. Highest Time
7AM24th Nov

51AQI

Avg. Lowest Time
4AM24th Nov

28AQI

In the last 24 hours,

Olgii's AQI reached its highest point of 51 at 7 AM during the Night, while the lowest point, 28, was recorded at 4 AM during the Night between 23rd Nov and 24th Nov 2025.

Day & Night AQI Trend : Oct - Nov 2025

Olgii, Bayan Olgii, Mongolia

OctNov
25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th
Day
Night
25th Oct 2025338 AMAQI
25th Oct 2025449 AMAQI
25th Oct 20255710 AMAQI
25th Oct 20256011 AMAQI
25th Oct 20256512 PMAQI
25th Oct 2025551 PMAQI
25th Oct 2025402 PMAQI
25th Oct 2025273 PMAQI
25th Oct 2025334 PMAQI
25th Oct 2025505 PMAQI
25th Oct 2025616 PMAQI
25th Oct 2025447 PMAQI
25th Oct 2025518 PMAQI
25th Oct 2025619 PMAQI
25th Oct 20254810 PMAQI
25th Oct 20255211 PMAQI
26th Oct 20255612 AMAQI
26th Oct 2025451 AMAQI
26th Oct 2025542 AMAQI
26th Oct 2025513 AMAQI
26th Oct 2025884 AMAQI
26th Oct 2025575 AMAQI
26th Oct 2025586 AMAQI
26th Oct 2025597 AMAQI

-6°C-10/-1°C

26th Oct 2025608 AMAQI
26th Oct 2025639 AMAQI
26th Oct 20257010 AMAQI
26th Oct 20256011 AMAQI
26th Oct 20255712 PMAQI
26th Oct 2025541 PMAQI
26th Oct 2025562 PMAQI
26th Oct 2025553 PMAQI
26th Oct 2025554 PMAQI
26th Oct 2025595 PMAQI
26th Oct 2025406 PMAQI
26th Oct 2025517 PMAQI
26th Oct 2025728 PMAQI
26th Oct 2025809 PMAQI
26th Oct 20256810 PMAQI
26th Oct 20257411 PMAQI
27th Oct 20257812 AMAQI
27th Oct 2025661 AMAQI
27th Oct 2025802 AMAQI
27th Oct 2025723 AMAQI
27th Oct 2025704 AMAQI
27th Oct 2025735 AMAQI
27th Oct 2025706 AMAQI
27th Oct 2025867 AMAQI

-4°C-10/-1°C

27th Oct 2025898 AMAQI
27th Oct 2025919 AMAQI
27th Oct 20258410 AMAQI
27th Oct 20257011 AMAQI
27th Oct 20259012 PMAQI
27th Oct 2025721 PMAQI
27th Oct 2025872 PMAQI
27th Oct 2025983 PMAQI
27th Oct 2025944 PMAQI
27th Oct 2025635 PMAQI
27th Oct 2025516 PMAQI
27th Oct 2025507 PMAQI
27th Oct 2025638 PMAQI
27th Oct 2025859 PMAQI
27th Oct 20258210 PMAQI
27th Oct 20257911 PMAQI
28th Oct 20255712 AMAQI
28th Oct 2025531 AMAQI
28th Oct 2025482 AMAQI
28th Oct 2025443 AMAQI
28th Oct 2025604 AMAQI
28th Oct 2025545 AMAQI
28th Oct 2025496 AMAQI
28th Oct 2025487 AMAQI

-1°C-7/4°C

28th Oct 2025568 AMAQI
28th Oct 2025599 AMAQI
28th Oct 20256010 AMAQI
28th Oct 20255511 AMAQI
28th Oct 20255612 PMAQI
28th Oct 2025581 PMAQI
28th Oct 2025592 PMAQI
28th Oct 2025573 PMAQI
28th Oct 2025564 PMAQI
28th Oct 2025555 PMAQI
28th Oct 2025496 PMAQI
28th Oct 2025567 PMAQI
28th Oct 2025588 PMAQI
28th Oct 2025549 PMAQI
28th Oct 20255610 PMAQI
28th Oct 20255511 PMAQI
29th Oct 20256312 AMAQI
29th Oct 2025541 AMAQI
29th Oct 2025322 AMAQI
29th Oct 2025343 AMAQI
29th Oct 2025634 AMAQI
29th Oct 2025555 AMAQI
29th Oct 2025666 AMAQI
29th Oct 2025767 AMAQI

-3°C-5/0°C

29th Oct 2025718 AMAQI
29th Oct 2025669 AMAQI
29th Oct 20256310 AMAQI
29th Oct 20256711 AMAQI
29th Oct 20256912 PMAQI
29th Oct 2025681 PMAQI
29th Oct 2025712 PMAQI
29th Oct 2025693 PMAQI
29th Oct 2025704 PMAQI
29th Oct 2025745 PMAQI
29th Oct 2025676 PMAQI
29th Oct 2025597 PMAQI
29th Oct 2025608 PMAQI
29th Oct 2025649 PMAQI
29th Oct 20258110 PMAQI
29th Oct 20257411 PMAQI
30th Oct 20256712 AMAQI
30th Oct 2025631 AMAQI
30th Oct 2025622 AMAQI
30th Oct 2025713 AMAQI
30th Oct 2025614 AMAQI
30th Oct 2025635 AMAQI
30th Oct 2025676 AMAQI
30th Oct 2025727 AMAQI

-4°C-9/-1°C

30th Oct 2025668 AMAQI
30th Oct 2025719 AMAQI
30th Oct 20257210 AMAQI
30th Oct 20256911 AMAQI
30th Oct 20257212 PMAQI
30th Oct 2025701 PMAQI
30th Oct 2025752 PMAQI
30th Oct 2025743 PMAQI
30th Oct 2025644 PMAQI
30th Oct 2025615 PMAQI
30th Oct 2025556 PMAQI
30th Oct 2025577 PMAQI
30th Oct 2025618 PMAQI
30th Oct 2025619 PMAQI
30th Oct 20258110 PMAQI
30th Oct 20258311 PMAQI
31st Oct 20256812 AMAQI
31st Oct 2025601 AMAQI
31st Oct 2025562 AMAQI
31st Oct 2025633 AMAQI
31st Oct 2025604 AMAQI
31st Oct 2025545 AMAQI
31st Oct 2025516 AMAQI
31st Oct 2025547 AMAQI

-3°C-8/0°C

31st Oct 2025378 AMAQI
31st Oct 2025409 AMAQI
31st Oct 20256510 AMAQI
31st Oct 20257211 AMAQI
31st Oct 20256412 PMAQI
31st Oct 2025571 PMAQI
31st Oct 2025552 PMAQI
31st Oct 2025623 PMAQI
31st Oct 2025584 PMAQI
31st Oct 2025415 PMAQI
31st Oct 2025506 PMAQI
31st Oct 2025557 PMAQI
31st Oct 2025578 PMAQI
31st Oct 2025589 PMAQI
31st Oct 20256110 PMAQI
31st Oct 20256211 PMAQI
1st Nov 20256212 AMAQI
1st Nov 2025691 AMAQI
1st Nov 2025582 AMAQI
1st Nov 2025573 AMAQI
1st Nov 2025584 AMAQI
1st Nov 2025645 AMAQI
1st Nov 2025656 AMAQI
1st Nov 2025607 AMAQI

-2°C-7/1°C

1st Nov 2025548 AMAQI
1st Nov 2025529 AMAQI
1st Nov 20256210 AMAQI
1st Nov 20256511 AMAQI
1st Nov 20256112 PMAQI
1st Nov 2025571 PMAQI
1st Nov 2025562 PMAQI
1st Nov 2025533 PMAQI
1st Nov 2025544 PMAQI
1st Nov 2025625 PMAQI
1st Nov 2025606 PMAQI
1st Nov 2025507 PMAQI
1st Nov 2025438 PMAQI
1st Nov 2025559 PMAQI
1st Nov 20255910 PMAQI
1st Nov 20256811 PMAQI
2nd Nov 20256912 AMAQI
2nd Nov 2025601 AMAQI
2nd Nov 2025602 AMAQI
2nd Nov 2025703 AMAQI
2nd Nov 2025754 AMAQI
2nd Nov 2025635 AMAQI
2nd Nov 2025566 AMAQI
2nd Nov 2025417 AMAQI

-2°C-6/2°C

2nd Nov 2025408 AMAQI
2nd Nov 2025519 AMAQI
2nd Nov 20254310 AMAQI
2nd Nov 20254211 AMAQI
2nd Nov 20253712 PMAQI
2nd Nov 2025431 PMAQI
2nd Nov 2025482 PMAQI
2nd Nov 2025483 PMAQI
2nd Nov 2025474 PMAQI
2nd Nov 2025465 PMAQI
2nd Nov 2025366 PMAQI
2nd Nov 2025307 PMAQI
2nd Nov 2025458 PMAQI
2nd Nov 2025459 PMAQI
2nd Nov 20254010 PMAQI
2nd Nov 20253511 PMAQI
3rd Nov 20254412 AMAQI
3rd Nov 2025291 AMAQI
3rd Nov 2025402 AMAQI
3rd Nov 2025363 AMAQI
3rd Nov 2025454 AMAQI
3rd Nov 2025495 AMAQI
3rd Nov 2025486 AMAQI
3rd Nov 2025517 AMAQI

-6°C-9/-3°C

3rd Nov 2025348 AMAQI
3rd Nov 2025179 AMAQI
3rd Nov 20252610 AMAQI
3rd Nov 20253111 AMAQI
3rd Nov 20253012 PMAQI
3rd Nov 2025251 PMAQI
3rd Nov 2025272 PMAQI
3rd Nov 2025283 PMAQI
3rd Nov 2025294 PMAQI
3rd Nov 2025355 PMAQI
3rd Nov 2025396 PMAQI
3rd Nov 2025247 PMAQI
3rd Nov 2025228 PMAQI
3rd Nov 2025229 PMAQI
3rd Nov 20252610 PMAQI
3rd Nov 20253211 PMAQI
4th Nov 20253012 AMAQI
4th Nov 2025291 AMAQI
4th Nov 2025302 AMAQI
4th Nov 2025343 AMAQI
4th Nov 2025364 AMAQI
4th Nov 2025495 AMAQI
4th Nov 2025336 AMAQI
4th Nov 2025337 AMAQI

-6°C-11/-3°C

4th Nov 2025458 AMAQI
4th Nov 2025459 AMAQI
4th Nov 20253310 AMAQI
4th Nov 20252811 AMAQI
4th Nov 20252712 PMAQI
4th Nov 2025221 PMAQI
4th Nov 2025282 PMAQI
4th Nov 2025373 PMAQI
4th Nov 2025294 PMAQI
4th Nov 2025245 PMAQI
4th Nov 2025246 PMAQI
4th Nov 2025267 PMAQI
4th Nov 2025338 PMAQI
4th Nov 2025369 PMAQI
4th Nov 20253410 PMAQI
4th Nov 20252211 PMAQI
5th Nov 20251812 AMAQI
5th Nov 2025301 AMAQI
5th Nov 2025232 AMAQI
5th Nov 2025233 AMAQI
5th Nov 2025364 AMAQI
5th Nov 2025235 AMAQI
5th Nov 2025366 AMAQI
5th Nov 2025397 AMAQI

-5°C-10/-2°C

5th Nov 2025358 AMAQI
5th Nov 2025229 AMAQI
5th Nov 20253510 AMAQI
5th Nov 20254411 AMAQI
5th Nov 20254712 PMAQI
5th Nov 2025441 PMAQI
5th Nov 2025372 PMAQI
5th Nov 2025333 PMAQI
5th Nov 2025304 PMAQI
5th Nov 2025355 PMAQI
5th Nov 2025256 PMAQI
5th Nov 2025277 PMAQI
5th Nov 2025308 PMAQI
5th Nov 2025359 PMAQI
5th Nov 20253210 PMAQI
5th Nov 20252911 PMAQI
6th Nov 20252712 AMAQI
6th Nov 2025251 AMAQI
6th Nov 2025322 AMAQI
6th Nov 2025333 AMAQI
6th Nov 2025334 AMAQI
6th Nov 2025405 AMAQI
6th Nov 2025406 AMAQI
6th Nov 2025277 AMAQI

-3°C-6/-2°C

6th Nov 2025248 AMAQI
6th Nov 2025309 AMAQI
6th Nov 20254010 AMAQI
6th Nov 20254511 AMAQI
6th Nov 20253712 PMAQI
6th Nov 2025341 PMAQI
6th Nov 2025462 PMAQI
6th Nov 2025453 PMAQI
6th Nov 2025414 PMAQI
6th Nov 2025385 PMAQI
6th Nov 2025326 PMAQI
6th Nov 2025307 PMAQI
6th Nov 2025208 PMAQI
6th Nov 2025209 PMAQI
6th Nov 20252810 PMAQI
6th Nov 20254711 PMAQI
7th Nov 20252212 AMAQI
7th Nov 2025241 AMAQI
7th Nov 2025412 AMAQI
7th Nov 2025363 AMAQI
7th Nov 2025294 AMAQI
7th Nov 2025215 AMAQI
7th Nov 2025276 AMAQI
7th Nov 2025347 AMAQI

-10°C-17/-4°C

7th Nov 2025428 AMAQI
7th Nov 2025379 AMAQI
7th Nov 20253810 AMAQI
7th Nov 20253911 AMAQI
7th Nov 20252912 PMAQI
7th Nov 2025281 PMAQI
7th Nov 2025362 PMAQI
7th Nov 2025263 PMAQI
7th Nov 2025234 PMAQI
7th Nov 2025355 PMAQI
7th Nov 2025366 PMAQI
7th Nov 2025397 PMAQI
7th Nov 2025298 PMAQI
7th Nov 2025359 PMAQI
7th Nov 20253410 PMAQI
7th Nov 20254211 PMAQI
8th Nov 20254712 AMAQI
8th Nov 2025411 AMAQI
8th Nov 2025362 AMAQI
8th Nov 2025333 AMAQI
8th Nov 2025334 AMAQI
8th Nov 2025325 AMAQI
8th Nov 2025316 AMAQI
8th Nov 2025397 AMAQI

-15°C-19/-13°C

8th Nov 2025468 AMAQI
8th Nov 2025419 AMAQI
8th Nov 20253510 AMAQI
8th Nov 20254011 AMAQI
8th Nov 20254412 PMAQI
8th Nov 2025381 PMAQI
8th Nov 2025422 PMAQI
8th Nov 2025393 PMAQI
8th Nov 2025434 PMAQI
8th Nov 2025225 PMAQI
8th Nov 2025226 PMAQI
8th Nov 2025377 PMAQI
8th Nov 2025308 PMAQI
8th Nov 2025229 PMAQI
8th Nov 20252510 PMAQI
8th Nov 20252211 PMAQI
9th Nov 20252212 AMAQI
9th Nov 2025221 AMAQI
9th Nov 2025222 AMAQI
9th Nov 2025223 AMAQI
9th Nov 2025184 AMAQI
9th Nov 2025175 AMAQI
9th Nov 2025186 AMAQI
9th Nov 2025247 AMAQI

-13°C-19/-10°C

9th Nov 2025408 AMAQI
9th Nov 2025339 AMAQI
9th Nov 20252210 AMAQI
9th Nov 20252311 AMAQI
9th Nov 20252012 PMAQI
9th Nov 2025231 PMAQI
9th Nov 2025182 PMAQI
9th Nov 2025183 PMAQI
9th Nov 2025204 PMAQI
9th Nov 2025185 PMAQI
9th Nov 2025246 PMAQI
9th Nov 2025327 PMAQI
9th Nov 2025368 PMAQI
9th Nov 2025319 PMAQI
9th Nov 20254210 PMAQI
9th Nov 20254811 PMAQI
10th Nov 20254612 AMAQI
10th Nov 2025431 AMAQI
10th Nov 2025352 AMAQI
10th Nov 2025333 AMAQI
10th Nov 2025324 AMAQI
10th Nov 2025245 AMAQI
10th Nov 2025246 AMAQI
10th Nov 2025257 AMAQI

-11°C-15/-5°C

10th Nov 2025358 AMAQI
10th Nov 2025449 AMAQI
10th Nov 20254610 AMAQI
10th Nov 20254211 AMAQI
10th Nov 20254012 PMAQI
10th Nov 2025251 PMAQI
10th Nov 2025252 PMAQI
10th Nov 2025403 PMAQI
10th Nov 2025304 PMAQI
10th Nov 2025305 PMAQI
10th Nov 2025306 PMAQI
10th Nov 2025407 PMAQI
10th Nov 2025338 PMAQI
10th Nov 2025369 PMAQI
10th Nov 20253410 PMAQI
10th Nov 20252911 PMAQI
11th Nov 20253512 AMAQI
11th Nov 2025521 AMAQI
11th Nov 2025422 AMAQI
11th Nov 2025173 AMAQI
11th Nov 2025144 AMAQI
11th Nov 2025175 AMAQI
11th Nov 2025176 AMAQI
11th Nov 2025207 AMAQI

-8°C-14/-3°C

11th Nov 2025248 AMAQI
11th Nov 2025239 AMAQI
11th Nov 20254310 AMAQI
11th Nov 20252911 AMAQI
11th Nov 20252812 PMAQI
11th Nov 2025511 PMAQI
11th Nov 2025432 PMAQI
11th Nov 2025373 PMAQI
11th Nov 2025444 PMAQI
11th Nov 2025455 PMAQI
11th Nov 2025456 PMAQI
11th Nov 2025447 PMAQI
11th Nov 2025498 PMAQI
11th Nov 2025469 PMAQI
11th Nov 20254410 PMAQI
11th Nov 20254011 PMAQI
12th Nov 20253412 AMAQI
12th Nov 2025361 AMAQI
12th Nov 2025392 AMAQI
12th Nov 2025463 AMAQI
12th Nov 2025434 AMAQI
12th Nov 2025435 AMAQI
12th Nov 2025426 AMAQI
12th Nov 2025457 AMAQI

-14°C-16/-9°C

12th Nov 2025478 AMAQI
12th Nov 2025399 AMAQI
12th Nov 20253910 AMAQI
12th Nov 20253011 AMAQI
12th Nov 20252912 PMAQI
12th Nov 2025331 PMAQI
12th Nov 2025332 PMAQI
12th Nov 2025303 PMAQI
12th Nov 2025304 PMAQI
12th Nov 2025415 PMAQI
12th Nov 2025326 PMAQI
12th Nov 2025357 PMAQI
12th Nov 2025348 PMAQI
12th Nov 2025239 PMAQI
12th Nov 20252410 PMAQI
12th Nov 20252111 PMAQI
13th Nov 20251912 AMAQI
13th Nov 2025281 AMAQI
13th Nov 2025202 AMAQI
13th Nov 2025193 AMAQI
13th Nov 2025174 AMAQI
13th Nov 2025305 AMAQI
13th Nov 2025396 AMAQI
13th Nov 2025437 AMAQI

-13°C-18/-10°C

13th Nov 2025428 AMAQI
13th Nov 2025269 AMAQI
13th Nov 20253210 AMAQI
13th Nov 20254511 AMAQI
13th Nov 20254212 PMAQI
13th Nov 2025411 PMAQI
13th Nov 2025402 PMAQI
13th Nov 2025333 PMAQI
13th Nov 2025284 PMAQI
13th Nov 2025275 PMAQI
13th Nov 2025206 PMAQI
13th Nov 2025177 PMAQI
13th Nov 2025258 PMAQI
13th Nov 2025389 PMAQI
13th Nov 20253810 PMAQI
13th Nov 20254011 PMAQI
14th Nov 20255512 AMAQI
14th Nov 2025431 AMAQI
14th Nov 2025422 AMAQI
14th Nov 2025353 AMAQI
14th Nov 2025424 AMAQI
14th Nov 2025235 AMAQI
14th Nov 2025216 AMAQI
14th Nov 2025227 AMAQI

-11°C-15/-6°C

14th Nov 2025298 AMAQI
14th Nov 2025409 AMAQI
14th Nov 20253710 AMAQI
14th Nov 20253611 AMAQI
14th Nov 20254312 PMAQI
14th Nov 2025421 PMAQI
14th Nov 2025282 PMAQI
14th Nov 2025283 PMAQI
14th Nov 2025324 PMAQI
14th Nov 2025325 PMAQI
14th Nov 2025346 PMAQI
14th Nov 2025317 PMAQI
14th Nov 2025298 PMAQI
14th Nov 2025289 PMAQI
14th Nov 20253110 PMAQI
14th Nov 20253811 PMAQI
15th Nov 20252912 AMAQI
15th Nov 2025231 AMAQI
15th Nov 2025292 AMAQI
15th Nov 2025243 AMAQI
15th Nov 2025274 AMAQI
15th Nov 2025255 AMAQI
15th Nov 2025296 AMAQI
15th Nov 2025327 AMAQI

-18°C-21/-14°C

15th Nov 2025328 AMAQI
15th Nov 2025249 AMAQI
15th Nov 20254210 AMAQI
15th Nov 20254911 AMAQI
15th Nov 20254812 PMAQI
15th Nov 2025431 PMAQI
15th Nov 2025362 PMAQI
15th Nov 2025373 PMAQI
15th Nov 2025404 PMAQI
15th Nov 2025405 PMAQI
15th Nov 2025316 PMAQI
15th Nov 2025407 PMAQI
15th Nov 2025438 PMAQI
15th Nov 2025439 PMAQI
15th Nov 20252210 PMAQI
15th Nov 20252111 PMAQI
16th Nov 20255212 AMAQI
16th Nov 2025391 AMAQI
16th Nov 2025262 AMAQI
16th Nov 2025283 AMAQI
16th Nov 2025344 AMAQI
16th Nov 2025325 AMAQI
16th Nov 2025326 AMAQI
16th Nov 2025367 AMAQI

-18°C-21/-15°C

16th Nov 2025428 AMAQI
16th Nov 2025469 AMAQI
16th Nov 20253810 AMAQI
16th Nov 20253111 AMAQI
16th Nov 20253912 PMAQI
16th Nov 2025251 PMAQI
16th Nov 2025382 PMAQI
16th Nov 2025513 PMAQI
16th Nov 2025384 PMAQI
16th Nov 2025265 PMAQI
16th Nov 2025306 PMAQI
16th Nov 2025337 PMAQI
16th Nov 2025438 PMAQI
16th Nov 2025449 PMAQI
16th Nov 20255210 PMAQI
16th Nov 20253811 PMAQI
17th Nov 20251712 AMAQI
17th Nov 2025211 AMAQI
17th Nov 2025322 AMAQI
17th Nov 2025243 AMAQI
17th Nov 2025434 AMAQI
17th Nov 2025355 AMAQI
17th Nov 2025266 AMAQI
17th Nov 2025327 AMAQI

-17°C-22/-13°C

17th Nov 2025398 AMAQI
17th Nov 2025379 AMAQI
17th Nov 20252510 AMAQI
17th Nov 20251711 AMAQI
17th Nov 20252312 PMAQI
17th Nov 2025281 PMAQI
17th Nov 2025172 PMAQI
17th Nov 2025273 PMAQI
17th Nov 2025224 PMAQI
17th Nov 2025355 PMAQI
17th Nov 2025236 PMAQI
17th Nov 2025267 PMAQI
17th Nov 2025268 PMAQI
17th Nov 2025229 PMAQI
17th Nov 20252910 PMAQI
17th Nov 20253311 PMAQI
18th Nov 20252712 AMAQI
18th Nov 2025301 AMAQI
18th Nov 2025322 AMAQI
18th Nov 2025303 AMAQI
18th Nov 2025274 AMAQI
18th Nov 2025265 AMAQI
18th Nov 2025236 AMAQI
18th Nov 2025287 AMAQI

-13°C-17/-8°C

18th Nov 2025228 AMAQI
18th Nov 2025269 AMAQI
18th Nov 20252410 AMAQI
18th Nov 20252811 AMAQI
18th Nov 20252212 PMAQI
18th Nov 2025221 PMAQI
18th Nov 2025222 PMAQI
18th Nov 2025263 PMAQI
18th Nov 2025424 PMAQI
18th Nov 2025275 PMAQI
18th Nov 2025206 PMAQI
18th Nov 2025207 PMAQI
18th Nov 2025318 PMAQI
18th Nov 2025309 PMAQI
18th Nov 20253410 PMAQI
18th Nov 20252811 PMAQI
19th Nov 20252012 AMAQI
19th Nov 2025201 AMAQI
19th Nov 2025272 AMAQI
19th Nov 2025263 AMAQI
19th Nov 2025204 AMAQI
19th Nov 2025395 AMAQI
19th Nov 2025276 AMAQI
19th Nov 2025237 AMAQI

-13°C-16/-10°C

19th Nov 2025288 AMAQI
19th Nov 2025349 AMAQI
19th Nov 20252710 AMAQI
19th Nov 20252011 AMAQI
19th Nov 20252012 PMAQI
19th Nov 2025211 PMAQI
19th Nov 2025442 PMAQI
19th Nov 2025363 PMAQI
19th Nov 2025274 PMAQI
19th Nov 2025385 PMAQI
19th Nov 2025226 PMAQI
19th Nov 2025277 PMAQI
19th Nov 2025298 PMAQI
19th Nov 2025249 PMAQI
19th Nov 20252910 PMAQI
19th Nov 20252011 PMAQI
20th Nov 20252012 AMAQI
20th Nov 2025181 AMAQI
20th Nov 2025372 AMAQI
20th Nov 2025223 AMAQI
20th Nov 2025244 AMAQI
20th Nov 2025245 AMAQI
20th Nov 2025206 AMAQI
20th Nov 2025257 AMAQI

-11°C-15/-6°C

20th Nov 2025268 AMAQI
20th Nov 2025279 AMAQI
20th Nov 20252610 AMAQI
20th Nov 20252711 AMAQI
20th Nov 20253312 PMAQI
20th Nov 2025261 PMAQI
20th Nov 2025282 PMAQI
20th Nov 2025423 PMAQI
20th Nov 2025364 PMAQI
20th Nov 2025235 PMAQI
20th Nov 2025236 PMAQI
20th Nov 2025267 PMAQI
20th Nov 2025308 PMAQI
20th Nov 2025409 PMAQI
20th Nov 20254610 PMAQI
20th Nov 20254711 PMAQI
21st Nov 20255112 AMAQI
21st Nov 2025421 AMAQI
21st Nov 2025212 AMAQI
21st Nov 2025303 AMAQI
21st Nov 2025314 AMAQI
21st Nov 2025275 AMAQI
21st Nov 2025266 AMAQI
21st Nov 2025447 AMAQI

-11°C-15/-9°C

21st Nov 2025338 AMAQI
21st Nov 2025189 AMAQI
21st Nov 20252810 AMAQI
21st Nov 20253011 AMAQI
21st Nov 20253412 PMAQI
21st Nov 2025291 PMAQI
21st Nov 2025302 PMAQI
21st Nov 2025273 PMAQI
21st Nov 2025294 PMAQI
21st Nov 2025315 PMAQI
21st Nov 2025306 PMAQI
21st Nov 2025367 PMAQI
21st Nov 2025358 PMAQI
21st Nov 2025339 PMAQI
21st Nov 20253510 PMAQI
21st Nov 20254211 PMAQI
22nd Nov 20254312 AMAQI
22nd Nov 2025351 AMAQI
22nd Nov 2025382 AMAQI
22nd Nov 2025343 AMAQI
22nd Nov 2025314 AMAQI
22nd Nov 2025355 AMAQI
22nd Nov 2025276 AMAQI
22nd Nov 2025237 AMAQI

-8°C-12/-5°C

22nd Nov 2025278 AMAQI
22nd Nov 2025329 AMAQI
22nd Nov 20252310 AMAQI
22nd Nov 20253111 AMAQI
22nd Nov 20253412 PMAQI
22nd Nov 2025361 PMAQI
22nd Nov 2025432 PMAQI
22nd Nov 2025523 PMAQI
22nd Nov 2025534 PMAQI
22nd Nov 2025435 PMAQI
22nd Nov 2025346 PMAQI
22nd Nov 2025397 PMAQI
22nd Nov 2025388 PMAQI
22nd Nov 2025349 PMAQI
22nd Nov 20253010 PMAQI
22nd Nov 20253211 PMAQI
23rd Nov 20253412 AMAQI
23rd Nov 2025391 AMAQI
23rd Nov 2025342 AMAQI
23rd Nov 2025423 AMAQI
23rd Nov 2025284 AMAQI
23rd Nov 2025225 AMAQI
23rd Nov 2025266 AMAQI
23rd Nov 2025347 AMAQI

-12°C-16/-7°C

23rd Nov 2025478 AMAQI
23rd Nov 2025399 AMAQI
23rd Nov 20254510 AMAQI
23rd Nov 20254111 AMAQI
23rd Nov 20253412 PMAQI
23rd Nov 2025481 PMAQI
23rd Nov 2025452 PMAQI
23rd Nov 2025473 PMAQI
23rd Nov 2025434 PMAQI
23rd Nov 2025325 PMAQI
23rd Nov 2025356 PMAQI
23rd Nov 2025357 PMAQI
23rd Nov 2025408 PMAQI
23rd Nov 2025339 PMAQI
23rd Nov 20254310 PMAQI
23rd Nov 20253111 PMAQI
24th Nov 20252812 AMAQI
24th Nov 2025281 AMAQI
24th Nov 2025372 AMAQI
24th Nov 2025303 AMAQI
24th Nov 2025284 AMAQI
24th Nov 2025405 AMAQI
24th Nov 2025326 AMAQI
24th Nov 2025517 AMAQI

-16°C-20/-13°C

8 AM
12 PM
5 PM
12 AM
7 AM

--°C/°C

Day time
Avg. Highest Time
10 AM - 3 PM

42AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
4 PM - 5 PM

41AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 3 PM (Avg. 42), while the lowest AQI was between 4 PM to 5 PM (Avg. 41).
Night time
Avg. Highest Time
10 PM - 11 PM

43AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
6 PM - 7 PM

37AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 43), while the lowest AQI was between 6 PM to 7 PM (Avg. 37).

2025 Days Vs Air Quality

Olgii, Bayan Olgii, Mongolia

2025

27%

87

58%

191

9%

29

6%

20

Total number of days with different AQI categories in last 328 days in 2025 (37 days remaining)

Good
87 Days
Moderate
191 Days
Poor
29 Days
Unhealthy
20 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 27%

Health Risk Level:

Very high

In 2025, 27% of 328 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.

Annual Air Quality Insights

Olgii, Bayan Olgii, Mongolia

AQI levels in 2025

AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
167AQI
2nd January 2025
144AQI
3rd January 2025
169AQI
4th January 2025
195AQI
5th January 2025
172AQI
6th January 2025
179AQI
7th January 2025
122AQI
8th January 2025
172AQI
9th January 2025
160AQI
10th January 2025
138AQI
11th January 2025
152AQI
12th January 2025
161AQI
13th January 2025
132AQI
14th January 2025
150AQI
15th January 2025
164AQI
16th January 2025
173AQI
17th January 2025
186AQI
18th January 2025
185AQI
19th January 2025
172AQI
20th January 2025
171AQI
21st January 2025
182AQI
22nd January 2025
191AQI
23rd January 2025
140AQI
24th January 2025
98AQI
25th January 2025
75AQI
26th January 2025
98AQI
27th January 2025
128AQI
28th January 2025
141AQI
29th January 2025
127AQI
30th January 2025
101AQI
31st January 2025
158AQI
1st February 2025
139AQI
2nd February 2025
135AQI
3rd February 2025
144AQI
4th February 2025
127AQI
5th February 2025
109AQI
6th February 2025
116AQI
7th February 2025
137AQI
8th February 2025
140AQI
9th February 2025
161AQI
10th February 2025
127AQI
11th February 2025
127AQI
12th February 2025
156AQI
13th February 2025
121AQI
14th February 2025
100AQI
15th February 2025
81AQI
16th February 2025
92AQI
17th February 2025
95AQI
18th February 2025
104AQI
19th February 2025
98AQI
20th February 2025
91AQI
21st February 2025
100AQI
22nd February 2025
94AQI
23rd February 2025
101AQI
24th February 2025
98AQI
25th February 2025
101AQI
26th February 2025
102AQI
27th February 2025
80AQI
28th February 2025
60AQI
1st March 2025
77AQI
2nd March 2025
76AQI
3rd March 2025
65AQI
4th March 2025
61AQI
5th March 2025
62AQI
6th March 2025
56AQI
7th March 2025
71AQI
8th March 2025
63AQI
9th March 2025
55AQI
10th March 2025
59AQI
11th March 2025
48AQI
12th March 2025
58AQI
13th March 2025
58AQI
14th March 2025
66AQI
15th March 2025
93AQI
16th March 2025
97AQI
17th March 2025
91AQI
18th March 2025
109AQI
19th March 2025
101AQI
20th March 2025
97AQI
21st March 2025
88AQI
22nd March 2025
96AQI
23rd March 2025
81AQI
24th March 2025
79AQI
25th March 2025
76AQI
26th March 2025
72AQI
27th March 2025
60AQI
28th March 2025
65AQI
29th March 2025
73AQI
30th March 2025
81AQI
31st March 2025
76AQI
1st April 2025
81AQI
2nd April 2025
72AQI
3rd April 2025
68AQI
4th April 2025
75AQI
5th April 2025
73AQI
6th April 2025
73AQI
7th April 2025
76AQI
8th April 2025
75AQI
9th April 2025
93AQI
10th April 2025
85AQI
11th April 2025
69AQI
12th April 2025
78AQI
13th April 2025
58AQI
14th April 2025
79AQI
15th April 2025
73AQI
16th April 2025
68AQI
17th April 2025
72AQI
18th April 2025
66AQI
19th April 2025
70AQI
20th April 2025
70AQI
21st April 2025
73AQI
22nd April 2025
67AQI
23rd April 2025
62AQI
24th April 2025
69AQI
25th April 2025
68AQI
26th April 2025
60AQI
27th April 2025
67AQI
28th April 2025
67AQI
29th April 2025
72AQI
30th April 2025
74AQI
1st May 2025
63AQI
2nd May 2025
61AQI
3rd May 2025
62AQI
4th May 2025
64AQI
5th May 2025
60AQI
6th May 2025
65AQI
7th May 2025
62AQI
8th May 2025
67AQI
9th May 2025
58AQI
10th May 2025
60AQI
11th May 2025
60AQI
12th May 2025
62AQI
13th May 2025
48AQI
14th May 2025
50AQI
15th May 2025
52AQI
16th May 2025
45AQI
17th May 2025
53AQI
18th May 2025
56AQI
19th May 2025
71AQI
20th May 2025
61AQI
21st May 2025
51AQI
22nd May 2025
48AQI
23rd May 2025
54AQI
24th May 2025
59AQI
25th May 2025
54AQI
26th May 2025
60AQI
27th May 2025
57AQI
28th May 2025
58AQI
29th May 2025
50AQI
30th May 2025
46AQI
31st May 2025
46AQI
1st June 2025
41AQI
2nd June 2025
43AQI
3rd June 2025
49AQI
4th June 2025
51AQI
5th June 2025
58AQI
6th June 2025
47AQI
7th June 2025
50AQI
8th June 2025
52AQI
9th June 2025
53AQI
10th June 2025
56AQI
11th June 2025
55AQI
12th June 2025
59AQI
13th June 2025
49AQI
14th June 2025
61AQI
15th June 2025
57AQI
16th June 2025
52AQI
17th June 2025
53AQI
18th June 2025
52AQI
19th June 2025
50AQI
20th June 2025
58AQI
21st June 2025
65AQI
22nd June 2025
69AQI
23rd June 2025
60AQI
24th June 2025
49AQI
25th June 2025
51AQI
26th June 2025
48AQI
27th June 2025
48AQI
28th June 2025
48AQI
29th June 2025
57AQI
30th June 2025
53AQI
1st July 2025
51AQI
2nd July 2025
53AQI
3rd July 2025
47AQI
4th July 2025
51AQI
5th July 2025
61AQI
6th July 2025
60AQI
7th July 2025
54AQI
8th July 2025
51AQI
9th July 2025
47AQI
10th July 2025
45AQI
11th July 2025
47AQI
12th July 2025
46AQI
13th July 2025
49AQI
14th July 2025
52AQI
15th July 2025
52AQI
16th July 2025
45AQI
17th July 2025
45AQI
18th July 2025
43AQI
19th July 2025
45AQI
20th July 2025
49AQI
21st July 2025
49AQI
22nd July 2025
44AQI
23rd July 2025
44AQI
24th July 2025
46AQI
25th July 2025
38AQI
26th July 2025
50AQI
27th July 2025
56AQI
28th July 2025
43AQI
29th July 2025
45AQI
30th July 2025
51AQI
31st July 2025
58AQI
1st August 2025
56AQI
2nd August 2025
65AQI
3rd August 2025
58AQI
4th August 2025
49AQI
5th August 2025
46AQI
6th August 2025
52AQI
7th August 2025
47AQI
8th August 2025
51AQI
9th August 2025
46AQI
10th August 2025
44AQI
11th August 2025
40AQI
12th August 2025
47AQI
13th August 2025
49AQI
14th August 2025
52AQI
15th August 2025
54AQI
16th August 2025
51AQI
17th August 2025
48AQI
18th August 2025
45AQI
19th August 2025
44AQI
20th August 2025
43AQI
21st August 2025
47AQI
22nd August 2025
40AQI
23rd August 2025
47AQI
24th August 2025
55AQI
25th August 2025
57AQI
26th August 2025
49AQI
27th August 2025
49AQI
28th August 2025
55AQI
29th August 2025
54AQI
30th August 2025
57AQI
31st August 2025
57AQI
1st September 2025
57AQI
2nd September 2025
67AQI
3rd September 2025
70AQI
4th September 2025
53AQI
5th September 2025
65AQI
6th September 2025
65AQI
7th September 2025
70AQI
8th September 2025
73AQI
9th September 2025
73AQI
10th September 2025
68AQI
11th September 2025
64AQI
12th September 2025
57AQI
13th September 2025
63AQI
14th September 2025
58AQI
15th September 2025
56AQI
16th September 2025
57AQI
17th September 2025
65AQI
18th September 2025
64AQI
19th September 2025
63AQI
20th September 2025
61AQI
21st September 2025
71AQI
22nd September 2025
68AQI
23rd September 2025
56AQI
24th September 2025
54AQI
25th September 2025
43AQI
26th September 2025
31AQI
27th September 2025
35AQI
28th September 2025
37AQI
29th September 2025
39AQI
30th September 2025
44AQI
1st October 2025
30AQI
2nd October 2025
49AQI
3rd October 2025
45AQI
4th October 2025
51AQI
5th October 2025
47AQI
6th October 2025
51AQI
7th October 2025
64AQI
8th October 2025
54AQI
9th October 2025
61AQI
10th October 2025
67AQI
11th October 2025
55AQI
12th October 2025
59AQI
13th October 2025
66AQI
14th October 2025
50AQI
15th October 2025
52AQI
16th October 2025
59AQI
17th October 2025
52AQI
18th October 2025
55AQI
19th October 2025
64AQI
20th October 2025
109AQI
21st October 2025
111AQI
22nd October 2025
83AQI
23rd October 2025
78AQI
24th October 2025
68AQI
25th October 2025
59AQI
26th October 2025
60AQI
27th October 2025
78AQI
28th October 2025
55AQI
29th October 2025
63AQI
30th October 2025
67AQI
31st October 2025
59AQI
1st November 2025
59AQI
2nd November 2025
52AQI
3rd November 2025
35AQI
4th November 2025
31AQI
5th November 2025
29AQI
6th November 2025
33AQI
7th November 2025
31AQI
8th November 2025
37AQI
9th November 2025
26AQI
10th November 2025
36AQI
11th November 2025
33AQI
12th November 2025
35AQI
13th November 2025
29AQI
14th November 2025
38AQI
15th November 2025
33AQI
16th November 2025
40AQI
17th November 2025
26AQI
18th November 2025
27AQI
19th November 2025
26AQI
20th November 2025
28AQI
21st November 2025
37AQI
22nd November 2025
36AQI
23rd November 2025
32AQI
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

152AQI

112AQI

75AQI

72AQI

57AQI

53AQI

49AQI

50AQI

58AQI

62AQI

34AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202571AQI

3
10
18
11
15
2
1
28
2
30
7
24
11
19
19
12
17
14
6
24
5
24
2
21
2
87
191
29
20

Highest AQI recorded in

January

152AQI

Lowest AQI recorded in

November

34AQI

202462AQI

7
13
3
26
3
12
19
21
9
14
17
30
31
21
7
1
2
13
18
6
6
13
16
2
168
99
25
16
2

Highest AQI recorded in

December

155AQI

Lowest AQI recorded in

October

13AQI

202384AQI

4
19
4
4
4
13
9
18
12
25
5
2
25
4
11
19
19
12
28
1
2
3
14
4
79
108
44
17
13

Highest AQI recorded in

February

186AQI

Lowest AQI recorded in

September

0AQI

2022143AQI

1
2
7
19
4
10
15
5
8
31
19
5

Highest AQI recorded in

December

173AQI

Lowest AQI recorded in

October

107AQI

Most & Least Polluted Years Over the Last 4 Years

Most Polluted Year Recorded
2022(Avg.)
143AQI
Least Polluted Year Recorded
2024(Avg.)
62AQI

Olgii's annual 2025 AQI (71) shows an average percentage change of -17.02% (improved AQI) compared to previous years: 2022 (143), 2023 (84), 2024 (62).