Ulchin, Gyeongbuk, South Korea 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+
October Air Quality Analysis
Ulchin, Gyeongbuk, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Oct 2023
83AQILowest AQI recorded on
8th Oct 2021
28AQISame Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 47 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Ulchin, Gyeongbuk, South Korea
AQI
Day
Night
.
6 AM5th Oct 2025
6 PM
5 AM6th Oct 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
11AM5th Oct
58AQI
Avg. Lowest Time
12AM6th Oct
39AQI
In the last 24 hours,
Ulchin's AQI reached its highest point of 58 at 11 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Ulchin, Gyeongbuk, South Korea
SepOct
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
6th Sep 2025346 AMAQI
6th Sep 2025347 AMAQI
6th Sep 2025338 AMAQI
6th Sep 2025389 AMAQI
6th Sep 20253910 AMAQI
6th Sep 20253911 AMAQI
6th Sep 20253612 PMAQI
6th Sep 2025351 PMAQI
6th Sep 2025292 PMAQI
6th Sep 2025323 PMAQI
6th Sep 2025324 PMAQI
6th Sep 2025305 PMAQI
6th Sep 2025326 PMAQI
6th Sep 2025297 PMAQI
6th Sep 2025358 PMAQI
6th Sep 2025439 PMAQI
6th Sep 20253910 PMAQI
6th Sep 20253511 PMAQI
7th Sep 20253312 AMAQI
7th Sep 2025351 AMAQI
7th Sep 2025342 AMAQI
7th Sep 2025333 AMAQI
7th Sep 2025344 AMAQI
7th Sep 2025355 AMAQI
28°C26/29°C
7th Sep 2025346 AMAQI
7th Sep 2025357 AMAQI
7th Sep 2025378 AMAQI
7th Sep 2025339 AMAQI
7th Sep 20253510 AMAQI
7th Sep 20253711 AMAQI
7th Sep 20253912 PMAQI
7th Sep 2025381 PMAQI
7th Sep 2025362 PMAQI
7th Sep 2025343 PMAQI
7th Sep 2025374 PMAQI
7th Sep 2025385 PMAQI
7th Sep 2025356 PMAQI
7th Sep 2025377 PMAQI
7th Sep 2025418 PMAQI
7th Sep 2025459 PMAQI
7th Sep 20254110 PMAQI
7th Sep 20254011 PMAQI
8th Sep 20253812 AMAQI
8th Sep 2025351 AMAQI
8th Sep 2025342 AMAQI
8th Sep 2025343 AMAQI
8th Sep 2025344 AMAQI
8th Sep 2025345 AMAQI
26°C25/28°C
8th Sep 2025346 AMAQI
8th Sep 2025357 AMAQI
8th Sep 2025358 AMAQI
8th Sep 2025329 AMAQI
8th Sep 20253510 AMAQI
8th Sep 20253511 AMAQI
8th Sep 20254712 PMAQI
8th Sep 2025381 PMAQI
8th Sep 2025392 PMAQI
8th Sep 2025433 PMAQI
8th Sep 2025374 PMAQI
8th Sep 2025465 PMAQI
8th Sep 2025436 PMAQI
8th Sep 2025477 PMAQI
8th Sep 2025448 PMAQI
8th Sep 2025449 PMAQI
8th Sep 20255010 PMAQI
8th Sep 20254911 PMAQI
9th Sep 20253912 AMAQI
9th Sep 2025381 AMAQI
9th Sep 2025372 AMAQI
9th Sep 2025363 AMAQI
9th Sep 2025364 AMAQI
9th Sep 2025375 AMAQI
26°C25/27°C
9th Sep 2025376 AMAQI
9th Sep 2025367 AMAQI
9th Sep 2025368 AMAQI
9th Sep 2025439 AMAQI
9th Sep 20254210 AMAQI
9th Sep 20254211 AMAQI
9th Sep 20254612 PMAQI
9th Sep 2025431 PMAQI
9th Sep 2025482 PMAQI
9th Sep 2025473 PMAQI
9th Sep 2025524 PMAQI
9th Sep 2025475 PMAQI
9th Sep 2025496 PMAQI
9th Sep 2025477 PMAQI
9th Sep 2025528 PMAQI
9th Sep 2025469 PMAQI
9th Sep 20254410 PMAQI
9th Sep 20254711 PMAQI
10th Sep 20254012 AMAQI
10th Sep 2025361 AMAQI
10th Sep 2025372 AMAQI
10th Sep 2025373 AMAQI
10th Sep 2025404 AMAQI
10th Sep 2025395 AMAQI
24°C23/26°C
10th Sep 2025406 AMAQI
10th Sep 2025407 AMAQI
10th Sep 2025408 AMAQI
10th Sep 2025429 AMAQI
10th Sep 20253710 AMAQI
10th Sep 20255011 AMAQI
10th Sep 20253912 PMAQI
10th Sep 2025401 PMAQI
10th Sep 2025332 PMAQI
10th Sep 2025393 PMAQI
10th Sep 2025394 PMAQI
10th Sep 2025295 PMAQI
10th Sep 2025396 PMAQI
10th Sep 2025297 PMAQI
10th Sep 2025428 PMAQI
10th Sep 2025439 PMAQI
10th Sep 20254510 PMAQI
10th Sep 20254311 PMAQI
11th Sep 20254212 AMAQI
11th Sep 2025411 AMAQI
11th Sep 2025402 AMAQI
11th Sep 2025393 AMAQI
11th Sep 2025404 AMAQI
11th Sep 2025405 AMAQI
23°C21/24°C
11th Sep 2025396 AMAQI
11th Sep 2025407 AMAQI
11th Sep 2025408 AMAQI
11th Sep 2025409 AMAQI
11th Sep 20254410 AMAQI
11th Sep 20254411 AMAQI
11th Sep 20254312 PMAQI
11th Sep 2025401 PMAQI
11th Sep 2025442 PMAQI
11th Sep 2025413 PMAQI
11th Sep 2025374 PMAQI
11th Sep 2025385 PMAQI
11th Sep 2025426 PMAQI
11th Sep 2025397 PMAQI
11th Sep 2025468 PMAQI
11th Sep 2025459 PMAQI
11th Sep 20254610 PMAQI
11th Sep 20255211 PMAQI
12th Sep 20254612 AMAQI
12th Sep 2025431 AMAQI
12th Sep 2025392 AMAQI
12th Sep 2025403 AMAQI
12th Sep 2025414 AMAQI
12th Sep 2025415 AMAQI
25°C24/25°C
12th Sep 2025416 AMAQI
12th Sep 2025417 AMAQI
12th Sep 2025428 AMAQI
12th Sep 2025329 AMAQI
12th Sep 20253110 AMAQI
12th Sep 20253511 AMAQI
12th Sep 20253412 PMAQI
12th Sep 2025371 PMAQI
12th Sep 2025352 PMAQI
12th Sep 2025403 PMAQI
12th Sep 2025384 PMAQI
12th Sep 2025425 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025367 PMAQI
12th Sep 2025398 PMAQI
12th Sep 2025459 PMAQI
12th Sep 20254110 PMAQI
12th Sep 20253811 PMAQI
13th Sep 20254212 AMAQI
13th Sep 2025451 AMAQI
13th Sep 2025402 AMAQI
13th Sep 2025413 AMAQI
13th Sep 2025424 AMAQI
13th Sep 2025435 AMAQI
24°C23/25°C
13th Sep 2025436 AMAQI
13th Sep 2025427 AMAQI
13th Sep 2025418 AMAQI
13th Sep 2025259 AMAQI
13th Sep 20253310 AMAQI
13th Sep 20253311 AMAQI
13th Sep 20253012 PMAQI
13th Sep 2025311 PMAQI
13th Sep 2025272 PMAQI
13th Sep 2025253 PMAQI
13th Sep 2025254 PMAQI
13th Sep 2025285 PMAQI
13th Sep 2025336 PMAQI
13th Sep 2025357 PMAQI
13th Sep 2025458 PMAQI
13th Sep 2025499 PMAQI
13th Sep 20254710 PMAQI
13th Sep 20255811 PMAQI
14th Sep 20254112 AMAQI
14th Sep 2025461 AMAQI
14th Sep 2025412 AMAQI
14th Sep 2025423 AMAQI
14th Sep 2025424 AMAQI
14th Sep 2025405 AMAQI
23°C22/25°C
14th Sep 2025396 AMAQI
14th Sep 2025417 AMAQI
14th Sep 2025408 AMAQI
14th Sep 2025389 AMAQI
14th Sep 20254110 AMAQI
14th Sep 20252811 AMAQI
14th Sep 20252812 PMAQI
14th Sep 2025331 PMAQI
14th Sep 2025282 PMAQI
14th Sep 2025273 PMAQI
14th Sep 2025254 PMAQI
14th Sep 2025335 PMAQI
14th Sep 2025346 PMAQI
14th Sep 2025397 PMAQI
14th Sep 2025418 PMAQI
14th Sep 2025449 PMAQI
14th Sep 20254010 PMAQI
14th Sep 20253811 PMAQI
15th Sep 20254112 AMAQI
15th Sep 2025421 AMAQI
15th Sep 2025452 AMAQI
15th Sep 2025433 AMAQI
15th Sep 2025424 AMAQI
15th Sep 2025445 AMAQI
24°C23/24°C
15th Sep 2025436 AMAQI
15th Sep 2025427 AMAQI
15th Sep 2025438 AMAQI
15th Sep 2025369 AMAQI
15th Sep 20253410 AMAQI
15th Sep 20253411 AMAQI
15th Sep 20253712 PMAQI
15th Sep 2025361 PMAQI
15th Sep 2025422 PMAQI
15th Sep 2025363 PMAQI
15th Sep 2025334 PMAQI
15th Sep 2025345 PMAQI
15th Sep 2025326 PMAQI
15th Sep 2025347 PMAQI
15th Sep 2025388 PMAQI
15th Sep 2025429 PMAQI
15th Sep 20254210 PMAQI
15th Sep 20254111 PMAQI
16th Sep 20254212 AMAQI
16th Sep 2025401 AMAQI
16th Sep 2025422 AMAQI
16th Sep 2025433 AMAQI
16th Sep 2025424 AMAQI
16th Sep 2025415 AMAQI
25°C24/26°C
16th Sep 2025416 AMAQI
16th Sep 2025417 AMAQI
16th Sep 2025418 AMAQI
16th Sep 2025469 AMAQI
16th Sep 20255010 AMAQI
16th Sep 20254311 AMAQI
16th Sep 20254912 PMAQI
16th Sep 2025481 PMAQI
16th Sep 2025462 PMAQI
16th Sep 2025463 PMAQI
16th Sep 2025504 PMAQI
16th Sep 2025545 PMAQI
16th Sep 2025566 PMAQI
16th Sep 2025557 PMAQI
16th Sep 2025478 PMAQI
16th Sep 2025459 PMAQI
16th Sep 20254410 PMAQI
16th Sep 20254311 PMAQI
17th Sep 20254212 AMAQI
17th Sep 2025411 AMAQI
17th Sep 2025402 AMAQI
17th Sep 2025413 AMAQI
17th Sep 2025424 AMAQI
17th Sep 2025415 AMAQI
26°C25/27°C
17th Sep 2025426 AMAQI
17th Sep 2025417 AMAQI
17th Sep 2025418 AMAQI
17th Sep 2025349 AMAQI
17th Sep 20253110 AMAQI
17th Sep 20253311 AMAQI
17th Sep 20253412 PMAQI
17th Sep 2025371 PMAQI
17th Sep 2025262 PMAQI
17th Sep 2025233 PMAQI
17th Sep 2025244 PMAQI
17th Sep 2025225 PMAQI
17th Sep 2025266 PMAQI
17th Sep 2025297 PMAQI
17th Sep 2025308 PMAQI
17th Sep 2025349 PMAQI
17th Sep 20253210 PMAQI
17th Sep 20253311 PMAQI
18th Sep 20253212 AMAQI
18th Sep 2025371 AMAQI
18th Sep 2025412 AMAQI
18th Sep 2025413 AMAQI
18th Sep 2025404 AMAQI
18th Sep 2025405 AMAQI
24°C20/25°C
18th Sep 2025406 AMAQI
18th Sep 2025407 AMAQI
18th Sep 2025408 AMAQI
18th Sep 2025279 AMAQI
18th Sep 20252110 AMAQI
18th Sep 20252211 AMAQI
18th Sep 20252112 PMAQI
18th Sep 2025211 PMAQI
18th Sep 2025192 PMAQI
18th Sep 2025183 PMAQI
18th Sep 2025184 PMAQI
18th Sep 2025225 PMAQI
18th Sep 2025236 PMAQI
18th Sep 2025237 PMAQI
18th Sep 2025278 PMAQI
18th Sep 2025319 PMAQI
18th Sep 20253310 PMAQI
18th Sep 20253311 PMAQI
19th Sep 20253312 AMAQI
19th Sep 2025351 AMAQI
19th Sep 2025392 AMAQI
19th Sep 2025383 AMAQI
19th Sep 2025374 AMAQI
19th Sep 2025355 AMAQI
22°C21/23°C
19th Sep 2025356 AMAQI
19th Sep 2025367 AMAQI
19th Sep 2025358 AMAQI
19th Sep 2025269 AMAQI
19th Sep 20252510 AMAQI
19th Sep 20252311 AMAQI
19th Sep 20252412 PMAQI
19th Sep 2025211 PMAQI
19th Sep 2025202 PMAQI
19th Sep 2025213 PMAQI
19th Sep 2025204 PMAQI
19th Sep 2025205 PMAQI
19th Sep 2025206 PMAQI
19th Sep 2025217 PMAQI
19th Sep 2025258 PMAQI
19th Sep 2025299 PMAQI
19th Sep 20252910 PMAQI
19th Sep 20252911 PMAQI
20th Sep 20252912 AMAQI
20th Sep 2025361 AMAQI
20th Sep 2025352 AMAQI
20th Sep 2025363 AMAQI
20th Sep 2025354 AMAQI
20th Sep 2025335 AMAQI
22°C20/24°C
20th Sep 2025336 AMAQI
20th Sep 2025337 AMAQI
20th Sep 2025338 AMAQI
20th Sep 2025239 AMAQI
20th Sep 20252010 AMAQI
20th Sep 20252011 AMAQI
20th Sep 20252012 PMAQI
20th Sep 2025181 PMAQI
20th Sep 2025192 PMAQI
20th Sep 2025193 PMAQI
20th Sep 2025214 PMAQI
20th Sep 2025215 PMAQI
20th Sep 2025206 PMAQI
20th Sep 2025227 PMAQI
20th Sep 2025268 PMAQI
20th Sep 2025289 PMAQI
20th Sep 20252710 PMAQI
20th Sep 20252711 PMAQI
21st Sep 20252812 AMAQI
21st Sep 2025331 AMAQI
21st Sep 2025332 AMAQI
21st Sep 2025333 AMAQI
21st Sep 2025324 AMAQI
21st Sep 2025315 AMAQI
22°C20/26°C
21st Sep 2025306 AMAQI
21st Sep 2025307 AMAQI
21st Sep 2025318 AMAQI
21st Sep 2025229 AMAQI
21st Sep 20252010 AMAQI
21st Sep 20252211 AMAQI
21st Sep 20252012 PMAQI
21st Sep 2025201 PMAQI
21st Sep 2025202 PMAQI
21st Sep 2025253 PMAQI
21st Sep 2025214 PMAQI
21st Sep 2025205 PMAQI
21st Sep 2025216 PMAQI
21st Sep 2025237 PMAQI
21st Sep 2025248 PMAQI
21st Sep 2025279 PMAQI
21st Sep 20252810 PMAQI
21st Sep 20252811 PMAQI
22nd Sep 20252712 AMAQI
22nd Sep 2025301 AMAQI
22nd Sep 2025302 AMAQI
22nd Sep 2025303 AMAQI
22nd Sep 2025304 AMAQI
22nd Sep 2025305 AMAQI
22°C21/24°C
22nd Sep 2025296 AMAQI
22nd Sep 2025307 AMAQI
22nd Sep 2025308 AMAQI
22nd Sep 2025279 AMAQI
22nd Sep 20252210 AMAQI
22nd Sep 20252411 AMAQI
22nd Sep 20252812 PMAQI
22nd Sep 2025281 PMAQI
22nd Sep 2025252 PMAQI
22nd Sep 2025243 PMAQI
22nd Sep 2025264 PMAQI
22nd Sep 2025265 PMAQI
22nd Sep 2025256 PMAQI
22nd Sep 2025277 PMAQI
22nd Sep 2025268 PMAQI
22nd Sep 2025279 PMAQI
22nd Sep 20252910 PMAQI
22nd Sep 20252811 PMAQI
23rd Sep 20252812 AMAQI
23rd Sep 2025291 AMAQI
23rd Sep 2025292 AMAQI
23rd Sep 2025293 AMAQI
23rd Sep 2025294 AMAQI
23rd Sep 2025285 AMAQI
23°C21/24°C
23rd Sep 2025286 AMAQI
23rd Sep 2025287 AMAQI
23rd Sep 2025298 AMAQI
23rd Sep 2025269 AMAQI
23rd Sep 20252710 AMAQI
23rd Sep 20252511 AMAQI
23rd Sep 20252212 PMAQI
23rd Sep 2025201 PMAQI
23rd Sep 2025212 PMAQI
23rd Sep 2025223 PMAQI
23rd Sep 2025274 PMAQI
23rd Sep 2025275 PMAQI
23rd Sep 2025246 PMAQI
23rd Sep 2025227 PMAQI
23rd Sep 2025248 PMAQI
23rd Sep 2025289 PMAQI
23rd Sep 20252810 PMAQI
23rd Sep 20252911 PMAQI
24th Sep 20252912 AMAQI
24th Sep 2025291 AMAQI
24th Sep 2025282 AMAQI
24th Sep 2025293 AMAQI
24th Sep 2025274 AMAQI
24th Sep 2025285 AMAQI
22°C21/22°C
24th Sep 2025276 AMAQI
24th Sep 2025277 AMAQI
24th Sep 2025278 AMAQI
24th Sep 2025239 AMAQI
24th Sep 20252310 AMAQI
24th Sep 20252211 AMAQI
24th Sep 20252412 PMAQI
24th Sep 2025271 PMAQI
24th Sep 2025282 PMAQI
24th Sep 2025303 PMAQI
24th Sep 2025354 PMAQI
24th Sep 2025375 PMAQI
24th Sep 2025466 PMAQI
24th Sep 2025497 PMAQI
24th Sep 2025438 PMAQI
24th Sep 2025409 PMAQI
24th Sep 20254010 PMAQI
24th Sep 20253811 PMAQI
25th Sep 20253812 AMAQI
25th Sep 2025301 AMAQI
25th Sep 2025282 AMAQI
25th Sep 2025283 AMAQI
25th Sep 2025284 AMAQI
25th Sep 2025275 AMAQI
25°C24/26°C
25th Sep 2025276 AMAQI
25th Sep 2025277 AMAQI
25th Sep 2025278 AMAQI
25th Sep 2025269 AMAQI
25th Sep 20251810 AMAQI
25th Sep 20251911 AMAQI
25th Sep 20251812 PMAQI
25th Sep 2025191 PMAQI
25th Sep 2025212 PMAQI
25th Sep 2025243 PMAQI
25th Sep 2025244 PMAQI
25th Sep 2025235 PMAQI
25th Sep 2025226 PMAQI
25th Sep 2025227 PMAQI
25th Sep 2025238 PMAQI
25th Sep 2025239 PMAQI
25th Sep 20252310 PMAQI
25th Sep 20252211 PMAQI
26th Sep 20252212 AMAQI
26th Sep 2025231 AMAQI
26th Sep 2025262 AMAQI
26th Sep 2025263 AMAQI
26th Sep 2025254 AMAQI
26th Sep 2025245 AMAQI
25°C23/26°C
26th Sep 2025256 AMAQI
26th Sep 2025267 AMAQI
26th Sep 2025278 AMAQI
26th Sep 2025309 AMAQI
26th Sep 20253210 AMAQI
26th Sep 20253811 AMAQI
26th Sep 20254612 PMAQI
26th Sep 2025471 PMAQI
26th Sep 2025502 PMAQI
26th Sep 2025503 PMAQI
26th Sep 2025544 PMAQI
26th Sep 2025555 PMAQI
26th Sep 2025536 PMAQI
26th Sep 2025517 PMAQI
26th Sep 2025548 PMAQI
26th Sep 2025559 PMAQI
26th Sep 20255310 PMAQI
26th Sep 20254411 PMAQI
27th Sep 20253812 AMAQI
27th Sep 2025381 AMAQI
27th Sep 2025382 AMAQI
27th Sep 2025393 AMAQI
27th Sep 2025364 AMAQI
27th Sep 2025345 AMAQI
25°C22/26°C
27th Sep 2025346 AMAQI
27th Sep 2025337 AMAQI
27th Sep 2025328 AMAQI
27th Sep 2025339 AMAQI
27th Sep 20253510 AMAQI
27th Sep 20253911 AMAQI
27th Sep 20254212 PMAQI
27th Sep 2025441 PMAQI
27th Sep 2025422 PMAQI
27th Sep 2025403 PMAQI
27th Sep 2025414 PMAQI
27th Sep 2025425 PMAQI
27th Sep 2025456 PMAQI
27th Sep 2025467 PMAQI
27th Sep 2025448 PMAQI
27th Sep 2025469 PMAQI
27th Sep 20254510 PMAQI
27th Sep 20254311 PMAQI
28th Sep 20254212 AMAQI
28th Sep 2025401 AMAQI
28th Sep 2025362 AMAQI
28th Sep 2025333 AMAQI
28th Sep 2025304 AMAQI
28th Sep 2025275 AMAQI
24°C22/26°C
28th Sep 2025256 AMAQI
28th Sep 2025207 AMAQI
28th Sep 2025188 AMAQI
28th Sep 2025179 AMAQI
28th Sep 20251810 AMAQI
28th Sep 20251911 AMAQI
28th Sep 20252012 PMAQI
28th Sep 2025231 PMAQI
28th Sep 2025222 PMAQI
28th Sep 2025243 PMAQI
28th Sep 2025244 PMAQI
28th Sep 2025245 PMAQI
28th Sep 2025246 PMAQI
28th Sep 2025217 PMAQI
28th Sep 2025188 PMAQI
28th Sep 2025189 PMAQI
28th Sep 20252110 PMAQI
28th Sep 20252611 PMAQI
29th Sep 20252612 AMAQI
29th Sep 2025261 AMAQI
29th Sep 2025272 AMAQI
29th Sep 2025313 AMAQI
29th Sep 2025314 AMAQI
29th Sep 2025375 AMAQI
22°C20/23°C
29th Sep 2025366 AMAQI
29th Sep 2025357 AMAQI
29th Sep 2025368 AMAQI
29th Sep 2025349 AMAQI
29th Sep 20253610 AMAQI
29th Sep 20253311 AMAQI
29th Sep 20253512 PMAQI
29th Sep 2025391 PMAQI
29th Sep 2025352 PMAQI
29th Sep 2025343 PMAQI
29th Sep 2025344 PMAQI
29th Sep 2025345 PMAQI
29th Sep 2025436 PMAQI
29th Sep 2025527 PMAQI
29th Sep 2025558 PMAQI
29th Sep 2025499 PMAQI
29th Sep 20254910 PMAQI
29th Sep 20254611 PMAQI
30th Sep 20254412 AMAQI
30th Sep 2025471 AMAQI
30th Sep 2025422 AMAQI
30th Sep 2025453 AMAQI
30th Sep 2025454 AMAQI
30th Sep 2025455 AMAQI
21°C21/23°C
30th Sep 2025426 AMAQI
30th Sep 2025477 AMAQI
30th Sep 2025378 AMAQI
30th Sep 2025359 AMAQI
30th Sep 20254310 AMAQI
30th Sep 20253611 AMAQI
30th Sep 20253212 PMAQI
30th Sep 2025371 PMAQI
30th Sep 2025392 PMAQI
30th Sep 2025413 PMAQI
30th Sep 2025384 PMAQI
30th Sep 2025365 PMAQI
30th Sep 2025396 PMAQI
30th Sep 2025457 PMAQI
30th Sep 2025448 PMAQI
30th Sep 2025489 PMAQI
30th Sep 20254310 PMAQI
30th Sep 20253911 PMAQI
1st Oct 20254312 AMAQI
1st Oct 2025401 AMAQI
1st Oct 2025412 AMAQI
1st Oct 2025403 AMAQI
1st Oct 2025504 AMAQI
1st Oct 2025475 AMAQI
21°C21/21°C
1st Oct 2025456 AMAQI
1st Oct 2025477 AMAQI
1st Oct 2025398 AMAQI
1st Oct 2025409 AMAQI
1st Oct 20254210 AMAQI
1st Oct 20254211 AMAQI
1st Oct 20254412 PMAQI
1st Oct 2025411 PMAQI
1st Oct 2025422 PMAQI
1st Oct 2025403 PMAQI
1st Oct 2025414 PMAQI
1st Oct 2025405 PMAQI
1st Oct 2025426 PMAQI
1st Oct 2025427 PMAQI
1st Oct 2025578 PMAQI
1st Oct 2025629 PMAQI
1st Oct 20256210 PMAQI
1st Oct 20256111 PMAQI
2nd Oct 20255712 AMAQI
2nd Oct 2025531 AMAQI
2nd Oct 2025542 AMAQI
2nd Oct 2025593 AMAQI
2nd Oct 2025614 AMAQI
2nd Oct 2025595 AMAQI
22°C22/23°C
2nd Oct 2025616 AMAQI
2nd Oct 2025657 AMAQI
2nd Oct 2025648 AMAQI
2nd Oct 2025649 AMAQI
2nd Oct 20256510 AMAQI
2nd Oct 20256311 AMAQI
2nd Oct 20256112 PMAQI
2nd Oct 2025591 PMAQI
2nd Oct 2025582 PMAQI
2nd Oct 2025583 PMAQI
2nd Oct 2025604 PMAQI
2nd Oct 2025635 PMAQI
2nd Oct 2025686 PMAQI
2nd Oct 2025667 PMAQI
2nd Oct 2025668 PMAQI
2nd Oct 2025709 PMAQI
2nd Oct 20257110 PMAQI
2nd Oct 20256911 PMAQI
3rd Oct 20256812 AMAQI
3rd Oct 2025691 AMAQI
3rd Oct 2025692 AMAQI
3rd Oct 2025683 AMAQI
3rd Oct 2025674 AMAQI
3rd Oct 2025675 AMAQI
23°C22/25°C
3rd Oct 2025656 AMAQI
3rd Oct 2025667 AMAQI
3rd Oct 2025648 AMAQI
3rd Oct 2025629 AMAQI
3rd Oct 20256410 AMAQI
3rd Oct 20256311 AMAQI
3rd Oct 20256012 PMAQI
3rd Oct 2025481 PMAQI
3rd Oct 2025482 PMAQI
3rd Oct 2025523 PMAQI
3rd Oct 2025454 PMAQI
3rd Oct 2025405 PMAQI
3rd Oct 2025406 PMAQI
3rd Oct 2025417 PMAQI
3rd Oct 2025398 PMAQI
3rd Oct 2025529 PMAQI
3rd Oct 20255310 PMAQI
3rd Oct 20254811 PMAQI
4th Oct 20254812 AMAQI
4th Oct 2025471 AMAQI
4th Oct 2025502 AMAQI
4th Oct 2025553 AMAQI
4th Oct 2025534 AMAQI
4th Oct 2025495 AMAQI
23°C22/24°C
4th Oct 2025486 AMAQI
4th Oct 2025437 AMAQI
4th Oct 2025438 AMAQI
4th Oct 2025409 AMAQI
4th Oct 20254110 AMAQI
4th Oct 20254411 AMAQI
4th Oct 20254712 PMAQI
4th Oct 2025461 PMAQI
4th Oct 2025482 PMAQI
4th Oct 2025433 PMAQI
4th Oct 2025444 PMAQI
4th Oct 2025465 PMAQI
4th Oct 2025486 PMAQI
4th Oct 2025457 PMAQI
4th Oct 2025468 PMAQI
4th Oct 2025519 PMAQI
4th Oct 20254910 PMAQI
4th Oct 20254911 PMAQI
5th Oct 20254612 AMAQI
5th Oct 2025501 AMAQI
5th Oct 2025542 AMAQI
5th Oct 2025533 AMAQI
5th Oct 2025554 AMAQI
5th Oct 2025565 AMAQI
23°C22/24°C
5th Oct 2025566 AMAQI
5th Oct 2025437 AMAQI
5th Oct 2025418 AMAQI
5th Oct 2025459 AMAQI
5th Oct 20254910 AMAQI
5th Oct 20255811 AMAQI
5th Oct 20255612 PMAQI
5th Oct 2025551 PMAQI
5th Oct 2025532 PMAQI
5th Oct 2025533 PMAQI
5th Oct 2025554 PMAQI
5th Oct 2025555 PMAQI
5th Oct 2025556 PMAQI
5th Oct 2025537 PMAQI
5th Oct 2025558 PMAQI
5th Oct 2025549 PMAQI
5th Oct 20255410 PMAQI
5th Oct 20254411 PMAQI
6th Oct 20253912 AMAQI
6th Oct 2025471 AMAQI
6th Oct 2025552 AMAQI
6th Oct 2025563 AMAQI
6th Oct 2025564 AMAQI
--°C/°C
6 AM
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 AM
38AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
9 AM - 6 PM
36AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 AM (Avg. 38), while the lowest AQI was between 9 AM to 6 PM (Avg. 36).
Night time
Avg. Highest Time
9 PM - 11 PM
42AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
12 AM - 7 PM
39AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 42), while the lowest AQI was between 12 AM to 7 PM (Avg. 39).
2025 Days Vs Air Quality
Ulchin, Gyeongbuk, South Korea
2025
56%
154
44%
122
0.3%
1
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Good
154 DaysModerate
122 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 56%
Health Risk Level:
Considerable
In 2025, 56% of 278 days were within WHO’s safe air quality limits, and 44% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Ulchin, Gyeongbuk, South Korea
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
55AQI
55AQI
2nd January 2025
50AQI
50AQI
3rd January 2025
46AQI
46AQI
4th January 2025
44AQI
44AQI
5th January 2025
53AQI
53AQI
6th January 2025
68AQI
68AQI
7th January 2025
49AQI
49AQI
8th January 2025
55AQI
55AQI
9th January 2025
42AQI
42AQI
10th January 2025
45AQI
45AQI
11th January 2025
43AQI
43AQI
12th January 2025
45AQI
45AQI
13th January 2025
58AQI
58AQI
14th January 2025
71AQI
71AQI
15th January 2025
50AQI
50AQI
16th January 2025
55AQI
55AQI
17th January 2025
54AQI
54AQI
18th January 2025
63AQI
63AQI
19th January 2025
53AQI
53AQI
20th January 2025
74AQI
74AQI
21st January 2025
86AQI
86AQI
22nd January 2025
99AQI
99AQI
23rd January 2025
74AQI
74AQI
24th January 2025
72AQI
72AQI
25th January 2025
54AQI
54AQI
26th January 2025
51AQI
51AQI
27th January 2025
47AQI
47AQI
28th January 2025
52AQI
52AQI
29th January 2025
52AQI
52AQI
30th January 2025
56AQI
56AQI
31st January 2025
69AQI
69AQI
1st February 2025
59AQI
59AQI
2nd February 2025
48AQI
48AQI
3rd February 2025
56AQI
56AQI
4th February 2025
43AQI
43AQI
5th February 2025
45AQI
45AQI
6th February 2025
41AQI
41AQI
7th February 2025
49AQI
49AQI
8th February 2025
38AQI
38AQI
9th February 2025
45AQI
45AQI
10th February 2025
43AQI
43AQI
11th February 2025
55AQI
55AQI
12th February 2025
48AQI
48AQI
13th February 2025
43AQI
43AQI
14th February 2025
57AQI
57AQI
15th February 2025
47AQI
47AQI
16th February 2025
72AQI
72AQI
17th February 2025
48AQI
48AQI
18th February 2025
52AQI
52AQI
19th February 2025
42AQI
42AQI
20th February 2025
47AQI
47AQI
21st February 2025
43AQI
43AQI
22nd February 2025
49AQI
49AQI
23rd February 2025
49AQI
49AQI
24th February 2025
52AQI
52AQI
25th February 2025
50AQI
50AQI
26th February 2025
74AQI
74AQI
27th February 2025
60AQI
60AQI
28th February 2025
67AQI
67AQI
1st March 2025
61AQI
61AQI
2nd March 2025
66AQI
66AQI
3rd March 2025
45AQI
45AQI
4th March 2025
45AQI
45AQI
5th March 2025
40AQI
40AQI
6th March 2025
43AQI
43AQI
7th March 2025
48AQI
48AQI
8th March 2025
50AQI
50AQI
9th March 2025
62AQI
62AQI
10th March 2025
57AQI
57AQI
11th March 2025
73AQI
73AQI
12th March 2025
72AQI
72AQI
13th March 2025
59AQI
59AQI
14th March 2025
53AQI
53AQI
15th March 2025
47AQI
47AQI
16th March 2025
42AQI
42AQI
17th March 2025
52AQI
52AQI
18th March 2025
47AQI
47AQI
19th March 2025
63AQI
63AQI
20th March 2025
61AQI
61AQI
21st March 2025
78AQI
78AQI
22nd March 2025
68AQI
68AQI
23rd March 2025
73AQI
73AQI
24th March 2025
96AQI
96AQI
25th March 2025
108AQI
108AQI
26th March 2025
98AQI
98AQI
27th March 2025
84AQI
84AQI
28th March 2025
75AQI
75AQI
29th March 2025
57AQI
57AQI
30th March 2025
52AQI
52AQI
31st March 2025
54AQI
54AQI
1st April 2025
55AQI
55AQI
2nd April 2025
42AQI
42AQI
3rd April 2025
44AQI
44AQI
4th April 2025
53AQI
53AQI
5th April 2025
54AQI
54AQI
6th April 2025
52AQI
52AQI
7th April 2025
57AQI
57AQI
8th April 2025
68AQI
68AQI
9th April 2025
63AQI
63AQI
10th April 2025
67AQI
67AQI
11th April 2025
62AQI
62AQI
12th April 2025
59AQI
59AQI
13th April 2025
58AQI
58AQI
14th April 2025
52AQI
52AQI
15th April 2025
45AQI
45AQI
16th April 2025
57AQI
57AQI
17th April 2025
60AQI
60AQI
18th April 2025
70AQI
70AQI
19th April 2025
60AQI
60AQI
20th April 2025
54AQI
54AQI
21st April 2025
47AQI
47AQI
22nd April 2025
48AQI
48AQI
23rd April 2025
37AQI
37AQI
24th April 2025
52AQI
52AQI
25th April 2025
68AQI
68AQI
26th April 2025
58AQI
58AQI
27th April 2025
60AQI
60AQI
28th April 2025
58AQI
58AQI
29th April 2025
54AQI
54AQI
30th April 2025
62AQI
62AQI
1st May 2025
56AQI
56AQI
2nd May 2025
50AQI
50AQI
3rd May 2025
48AQI
48AQI
4th May 2025
49AQI
49AQI
5th May 2025
42AQI
42AQI
6th May 2025
41AQI
41AQI
7th May 2025
42AQI
42AQI
8th May 2025
48AQI
48AQI
9th May 2025
42AQI
42AQI
10th May 2025
34AQI
34AQI
11th May 2025
47AQI
47AQI
12th May 2025
55AQI
55AQI
13th May 2025
64AQI
64AQI
14th May 2025
67AQI
67AQI
15th May 2025
62AQI
62AQI
16th May 2025
58AQI
58AQI
17th May 2025
43AQI
43AQI
18th May 2025
51AQI
51AQI
19th May 2025
58AQI
58AQI
20th May 2025
60AQI
60AQI
21st May 2025
59AQI
59AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
62AQI
62AQI
24th May 2025
43AQI
43AQI
25th May 2025
43AQI
43AQI
26th May 2025
49AQI
49AQI
27th May 2025
49AQI
49AQI
28th May 2025
51AQI
51AQI
29th May 2025
46AQI
46AQI
30th May 2025
42AQI
42AQI
31st May 2025
41AQI
41AQI
1st June 2025
53AQI
53AQI
2nd June 2025
62AQI
62AQI
3rd June 2025
56AQI
56AQI
4th June 2025
51AQI
51AQI
5th June 2025
49AQI
49AQI
6th June 2025
56AQI
56AQI
7th June 2025
63AQI
63AQI
8th June 2025
66AQI
66AQI
9th June 2025
64AQI
64AQI
10th June 2025
61AQI
61AQI
11th June 2025
50AQI
50AQI
12th June 2025
54AQI
54AQI
13th June 2025
58AQI
58AQI
14th June 2025
44AQI
44AQI
15th June 2025
49AQI
49AQI
16th June 2025
46AQI
46AQI
17th June 2025
57AQI
57AQI
18th June 2025
60AQI
60AQI
19th June 2025
62AQI
62AQI
20th June 2025
48AQI
48AQI
21st June 2025
43AQI
43AQI
22nd June 2025
32AQI
32AQI
23rd June 2025
47AQI
47AQI
24th June 2025
45AQI
45AQI
25th June 2025
39AQI
39AQI
26th June 2025
41AQI
41AQI
27th June 2025
47AQI
47AQI
28th June 2025
56AQI
56AQI
29th June 2025
56AQI
56AQI
30th June 2025
51AQI
51AQI
1st July 2025
54AQI
54AQI
2nd July 2025
46AQI
46AQI
3rd July 2025
54AQI
54AQI
4th July 2025
58AQI
58AQI
5th July 2025
57AQI
57AQI
6th July 2025
57AQI
57AQI
7th July 2025
61AQI
61AQI
8th July 2025
57AQI
57AQI
9th July 2025
54AQI
54AQI
10th July 2025
51AQI
51AQI
11th July 2025
52AQI
52AQI
12th July 2025
48AQI
48AQI
13th July 2025
50AQI
50AQI
14th July 2025
42AQI
42AQI
15th July 2025
44AQI
44AQI
16th July 2025
53AQI
53AQI
17th July 2025
48AQI
48AQI
18th July 2025
44AQI
44AQI
19th July 2025
37AQI
37AQI
20th July 2025
46AQI
46AQI
21st July 2025
44AQI
44AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
44AQI
44AQI
24th July 2025
47AQI
47AQI
25th July 2025
45AQI
45AQI
26th July 2025
46AQI
46AQI
27th July 2025
37AQI
37AQI
28th July 2025
40AQI
40AQI
29th July 2025
43AQI
43AQI
30th July 2025
43AQI
43AQI
31st July 2025
47AQI
47AQI
1st August 2025
50AQI
50AQI
2nd August 2025
53AQI
53AQI
3rd August 2025
54AQI
54AQI
4th August 2025
49AQI
49AQI
5th August 2025
48AQI
48AQI
6th August 2025
43AQI
43AQI
7th August 2025
41AQI
41AQI
8th August 2025
40AQI
40AQI
9th August 2025
44AQI
44AQI
10th August 2025
44AQI
44AQI
11th August 2025
43AQI
43AQI
12th August 2025
37AQI
37AQI
13th August 2025
37AQI
37AQI
14th August 2025
39AQI
39AQI
15th August 2025
41AQI
41AQI
16th August 2025
41AQI
41AQI
17th August 2025
40AQI
40AQI
18th August 2025
49AQI
49AQI
19th August 2025
50AQI
50AQI
20th August 2025
49AQI
49AQI
21st August 2025
49AQI
49AQI
22nd August 2025
53AQI
53AQI
23rd August 2025
49AQI
49AQI
24th August 2025
50AQI
50AQI
25th August 2025
50AQI
50AQI
26th August 2025
43AQI
43AQI
27th August 2025
42AQI
42AQI
28th August 2025
43AQI
43AQI
29th August 2025
44AQI
44AQI
30th August 2025
44AQI
44AQI
31st August 2025
47AQI
47AQI
1st September 2025
41AQI
41AQI
2nd September 2025
44AQI
44AQI
3rd September 2025
40AQI
40AQI
4th September 2025
35AQI
35AQI
5th September 2025
32AQI
32AQI
6th September 2025
34AQI
34AQI
7th September 2025
37AQI
37AQI
8th September 2025
40AQI
40AQI
9th September 2025
43AQI
43AQI
10th September 2025
39AQI
39AQI
11th September 2025
42AQI
42AQI
12th September 2025
39AQI
39AQI
13th September 2025
39AQI
39AQI
14th September 2025
38AQI
38AQI
15th September 2025
39AQI
39AQI
16th September 2025
46AQI
46AQI
17th September 2025
34AQI
34AQI
18th September 2025
30AQI
30AQI
19th September 2025
29AQI
29AQI
20th September 2025
27AQI
27AQI
21st September 2025
26AQI
26AQI
22nd September 2025
28AQI
28AQI
23rd September 2025
26AQI
26AQI
24th September 2025
32AQI
32AQI
25th September 2025
24AQI
24AQI
26th September 2025
39AQI
39AQI
27th September 2025
41AQI
41AQI
28th September 2025
26AQI
26AQI
29th September 2025
38AQI
38AQI
30th September 2025
42AQI
42AQI
1st October 2025
45AQI
45AQI
2nd October 2025
63AQI
63AQI
3rd October 2025
57AQI
57AQI
4th October 2025
47AQI
47AQI
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
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
58AQI
51AQI
62AQI
56AQI
50AQI
52AQI
48AQI
45AQI
36AQI
53AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202551AQI
10
21
18
10
9
21
1
6
24
18
13
13
17
20
11
28
3
30
2
2
154
122
1
Highest AQI recorded in
March62AQI
Lowest AQI recorded in
September36AQI
202449AQI
17
14
19
10
8
21
2
4
22
2
2
14
17
10
20
29
2
28
3
30
30
1
23
7
27
4
239
121
4
2
Highest AQI recorded in
April70AQI
Lowest AQI recorded in
September34AQI
202356AQI
13
16
2
9
19
4
27
7
20
1
2
11
20
12
18
19
12
27
4
28
2
20
11
3
26
9
22
162
197
3
2
Highest AQI recorded in
April71AQI
Lowest AQI recorded in
September39AQI
202255AQI
18
12
1
10
10
1
10
15
4
2
9
21
5
25
1
19
11
17
5
1
28
1
22
9
9
21
4
27
152
157
7
2
Highest AQI recorded in
March72AQI
Lowest AQI recorded in
September39AQI
202149AQI
23
8
13
14
1
14
16
1
14
16
15
15
1
17
13
26
5
24
7
27
3
25
6
15
15
20
10
1
233
128
2
2
Highest AQI recorded in
March61AQI
Lowest AQI recorded in
September36AQI
202047AQI
8
5
13
8
11
7
17
13
29
2
21
10
21
9
24
7
21
9
19
12
184
82
Highest AQI recorded in
June51AQI
Lowest AQI recorded in
July37AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
56AQILeast Polluted Year Recorded
2020(Avg.)
47AQIUlchin's annual 2025 AQI (51) shows an average percentage change of 0.3% (worsened AQI) compared to previous years: 2020 (47), 2021 (49), 2022 (55), 2023 (56), 2024 (49).
