Hulan Normal College, Harbin, Heilongjiang, China 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
Hulan Normal College, Harbin, Heilongjiang, China
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
21st Aug 2023
76AQILowest AQI recorded on
2nd Aug 2026
15AQISame Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 30 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
Hulan Normal College, Harbin, Heilongjiang, China
AQI
Day
Night
.
4 AM12th Aug 2026
7 PM
3 AM13th Aug 2026
Day time
Avg. Highest Time
2PM12th Aug
57AQI
Avg. Lowest Time
11AM12th Aug
22AQI
Night time
Avg. Highest Time
8PM12th Aug
38AQI
Avg. Lowest Time
3AM13th Aug
22AQI
In the last 24 hours,
Hulan Normal College's AQI reached its highest point of 57 at 2 PM during the Day, while the lowest point, 22, was recorded at 3 AM during the Night between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Hulan Normal College, Harbin, Heilongjiang, China
JulAug
15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
15th Jul 2026464 AMAQI
15th Jul 2026365 AMAQI
15th Jul 2026326 AMAQI
15th Jul 2026577 AMAQI
15th Jul 2026508 AMAQI
15th Jul 2026479 AMAQI
15th Jul 20264010 AMAQI
15th Jul 20263611 AMAQI
15th Jul 20264012 PMAQI
15th Jul 2026421 PMAQI
15th Jul 2026312 PMAQI
15th Jul 2026233 PMAQI
15th Jul 2026244 PMAQI
15th Jul 2026245 PMAQI
15th Jul 2026216 PMAQI
15th Jul 2026217 PMAQI
15th Jul 2026128 PMAQI
15th Jul 2026129 PMAQI
15th Jul 20261410 PMAQI
15th Jul 20261411 PMAQI
16th Jul 20261712 AMAQI
16th Jul 2026151 AMAQI
16th Jul 2026172 AMAQI
16th Jul 2026223 AMAQI
23°C18/28°C
16th Jul 2026364 AMAQI
16th Jul 2026245 AMAQI
16th Jul 2026126 AMAQI
16th Jul 2026127 AMAQI
16th Jul 2026158 AMAQI
16th Jul 2026179 AMAQI
16th Jul 20261910 AMAQI
16th Jul 20262011 AMAQI
16th Jul 20261812 PMAQI
16th Jul 2026171 PMAQI
16th Jul 2026142 PMAQI
16th Jul 2026183 PMAQI
16th Jul 2026214 PMAQI
16th Jul 2026275 PMAQI
16th Jul 2026236 PMAQI
16th Jul 2026147 PMAQI
16th Jul 2026178 PMAQI
16th Jul 2026199 PMAQI
16th Jul 20262110 PMAQI
16th Jul 20262311 PMAQI
17th Jul 20262712 AMAQI
17th Jul 2026271 AMAQI
17th Jul 2026242 AMAQI
17th Jul 2026243 AMAQI
21°C15/26°C
17th Jul 2026244 AMAQI
17th Jul 2026205 AMAQI
17th Jul 2026226 AMAQI
17th Jul 2026207 AMAQI
17th Jul 2026248 AMAQI
17th Jul 2026369 AMAQI
17th Jul 20264510 AMAQI
17th Jul 20263311 AMAQI
17th Jul 20262812 PMAQI
17th Jul 2026241 PMAQI
17th Jul 2026242 PMAQI
17th Jul 2026263 PMAQI
17th Jul 2026304 PMAQI
17th Jul 2026345 PMAQI
17th Jul 2026446 PMAQI
17th Jul 2026407 PMAQI
17th Jul 2026368 PMAQI
17th Jul 2026389 PMAQI
17th Jul 20263610 PMAQI
17th Jul 20264211 PMAQI
18th Jul 20264912 AMAQI
18th Jul 2026341 AMAQI
18th Jul 2026422 AMAQI
18th Jul 2026303 AMAQI
23°C17/29°C
18th Jul 2026364 AMAQI
18th Jul 2026365 AMAQI
18th Jul 2026256 AMAQI
18th Jul 2026237 AMAQI
18th Jul 2026328 AMAQI
18th Jul 2026349 AMAQI
18th Jul 20262410 AMAQI
18th Jul 20263411 AMAQI
18th Jul 20262112 PMAQI
18th Jul 2026401 PMAQI
18th Jul 2026282 PMAQI
18th Jul 2026283 PMAQI
18th Jul 2026354 PMAQI
18th Jul 2026355 PMAQI
18th Jul 2026296 PMAQI
18th Jul 2026217 PMAQI
18th Jul 2026318 PMAQI
18th Jul 2026349 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20264611 PMAQI
19th Jul 20263312 AMAQI
19th Jul 2026241 AMAQI
19th Jul 2026212 AMAQI
19th Jul 2026213 AMAQI
23°C18/29°C
19th Jul 2026294 AMAQI
19th Jul 2026265 AMAQI
19th Jul 2026286 AMAQI
19th Jul 2026307 AMAQI
19th Jul 2026428 AMAQI
19th Jul 2026299 AMAQI
19th Jul 20262810 AMAQI
19th Jul 20262311 AMAQI
19th Jul 20263412 PMAQI
19th Jul 2026401 PMAQI
19th Jul 2026252 PMAQI
19th Jul 2026283 PMAQI
19th Jul 2026264 PMAQI
19th Jul 2026285 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026247 PMAQI
19th Jul 2026338 PMAQI
19th Jul 2026219 PMAQI
19th Jul 20262610 PMAQI
19th Jul 20263311 PMAQI
20th Jul 20263612 AMAQI
20th Jul 2026441 AMAQI
20th Jul 2026442 AMAQI
20th Jul 2026503 AMAQI
24°C18/29°C
20th Jul 2026554 AMAQI
20th Jul 2026565 AMAQI
20th Jul 2026566 AMAQI
20th Jul 2026647 AMAQI
20th Jul 2026598 AMAQI
20th Jul 2026569 AMAQI
20th Jul 20265710 AMAQI
20th Jul 20265611 AMAQI
20th Jul 20265612 PMAQI
20th Jul 2026541 PMAQI
20th Jul 2026512 PMAQI
20th Jul 2026463 PMAQI
20th Jul 2026464 PMAQI
20th Jul 2026465 PMAQI
20th Jul 2026506 PMAQI
20th Jul 2026387 PMAQI
20th Jul 2026388 PMAQI
20th Jul 2026289 PMAQI
20th Jul 20263610 PMAQI
20th Jul 20264811 PMAQI
21st Jul 20265712 AMAQI
21st Jul 2026601 AMAQI
21st Jul 2026642 AMAQI
21st Jul 2026603 AMAQI
25°C20/31°C
21st Jul 2026584 AMAQI
21st Jul 2026645 AMAQI
21st Jul 2026546 AMAQI
21st Jul 2026497 AMAQI
21st Jul 2026448 AMAQI
21st Jul 2026389 AMAQI
21st Jul 20263110 AMAQI
21st Jul 20263812 PMAQI
21st Jul 2026401 PMAQI
21st Jul 2026472 PMAQI
21st Jul 2026443 PMAQI
21st Jul 2026384 PMAQI
21st Jul 2026405 PMAQI
21st Jul 2026876 PMAQI
21st Jul 2026427 PMAQI
21st Jul 2026468 PMAQI
21st Jul 2026449 PMAQI
21st Jul 20264210 PMAQI
21st Jul 20263811 PMAQI
22nd Jul 20264412 AMAQI
22nd Jul 2026461 AMAQI
22nd Jul 2026492 AMAQI
22nd Jul 2026543 AMAQI
25°C21/29°C
22nd Jul 2026404 AMAQI
22nd Jul 2026365 AMAQI
22nd Jul 2026366 AMAQI
22nd Jul 2026387 AMAQI
22nd Jul 2026518 AMAQI
22nd Jul 2026559 AMAQI
22nd Jul 20265410 AMAQI
22nd Jul 20265811 AMAQI
22nd Jul 20266612 PMAQI
22nd Jul 2026641 PMAQI
22nd Jul 2026682 PMAQI
22nd Jul 2026693 PMAQI
22nd Jul 2026584 PMAQI
22nd Jul 2026485 PMAQI
22nd Jul 2026446 PMAQI
22nd Jul 2026547 PMAQI
22nd Jul 2026558 PMAQI
22nd Jul 2026649 PMAQI
22nd Jul 20267310 PMAQI
22nd Jul 20267611 PMAQI
23rd Jul 20266012 AMAQI
23rd Jul 2026711 AMAQI
23rd Jul 2026782 AMAQI
23rd Jul 2026763 AMAQI
26°C21/31°C
23rd Jul 2026874 AMAQI
23rd Jul 2026685 AMAQI
23rd Jul 2026676 AMAQI
23rd Jul 2026697 AMAQI
23rd Jul 2026658 AMAQI
23rd Jul 2026709 AMAQI
23rd Jul 20265910 AMAQI
23rd Jul 20266311 AMAQI
23rd Jul 20268612 PMAQI
23rd Jul 2026811 PMAQI
23rd Jul 2026852 PMAQI
23rd Jul 2026883 PMAQI
23rd Jul 2026894 PMAQI
23rd Jul 2026875 PMAQI
23rd Jul 2026936 PMAQI
23rd Jul 20261047 PMAQI
23rd Jul 20261058 PMAQI
23rd Jul 2026669 PMAQI
23rd Jul 20265610 PMAQI
23rd Jul 20262511 PMAQI
24th Jul 20263812 AMAQI
24th Jul 2026401 AMAQI
24th Jul 2026172 AMAQI
24th Jul 2026193 AMAQI
26°C22/30°C
24th Jul 2026424 AMAQI
24th Jul 2026385 AMAQI
24th Jul 2026466 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026278 AMAQI
24th Jul 2026219 AMAQI
24th Jul 20262610 AMAQI
24th Jul 20263611 AMAQI
24th Jul 20263612 PMAQI
24th Jul 2026321 PMAQI
24th Jul 2026362 PMAQI
24th Jul 2026363 PMAQI
24th Jul 2026294 PMAQI
24th Jul 2026295 PMAQI
24th Jul 2026166 PMAQI
24th Jul 2026177 PMAQI
24th Jul 2026338 PMAQI
24th Jul 2026319 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20262011 PMAQI
25th Jul 20262012 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026422 AMAQI
25th Jul 2026483 AMAQI
23°C22/25°C
25th Jul 2026404 AMAQI
25th Jul 2026485 AMAQI
25th Jul 2026386 AMAQI
25th Jul 2026387 AMAQI
25th Jul 2026188 AMAQI
25th Jul 2026189 AMAQI
25th Jul 20262110 AMAQI
25th Jul 20262711 AMAQI
25th Jul 20262712 PMAQI
25th Jul 2026141 PMAQI
25th Jul 2026112 PMAQI
25th Jul 2026103 PMAQI
25th Jul 2026124 PMAQI
25th Jul 2026165 PMAQI
25th Jul 2026166 PMAQI
25th Jul 2026227 PMAQI
25th Jul 2026238 PMAQI
25th Jul 2026339 PMAQI
25th Jul 20262710 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20263112 AMAQI
26th Jul 2026291 AMAQI
26th Jul 2026292 AMAQI
26th Jul 2026383 AMAQI
25°C21/30°C
26th Jul 2026404 AMAQI
26th Jul 2026475 AMAQI
26th Jul 2026426 AMAQI
26th Jul 2026407 AMAQI
26th Jul 2026258 AMAQI
26th Jul 2026249 AMAQI
26th Jul 20263110 AMAQI
26th Jul 20263111 AMAQI
26th Jul 20263112 PMAQI
26th Jul 2026271 PMAQI
26th Jul 2026232 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026294 PMAQI
26th Jul 2026285 PMAQI
26th Jul 2026366 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026409 PMAQI
26th Jul 20263610 PMAQI
26th Jul 20263411 PMAQI
27th Jul 20263812 AMAQI
27th Jul 2026401 AMAQI
27th Jul 2026532 AMAQI
27th Jul 2026623 AMAQI
24°C20/30°C
27th Jul 2026544 AMAQI
27th Jul 2026485 AMAQI
27th Jul 2026446 AMAQI
27th Jul 2026337 AMAQI
27th Jul 2026278 AMAQI
27th Jul 2026299 AMAQI
27th Jul 20263110 AMAQI
27th Jul 20263311 AMAQI
27th Jul 20264212 PMAQI
27th Jul 2026551 PMAQI
27th Jul 2026482 PMAQI
27th Jul 2026333 PMAQI
27th Jul 2026424 PMAQI
27th Jul 2026465 PMAQI
27th Jul 2026426 PMAQI
27th Jul 2026387 PMAQI
27th Jul 2026298 PMAQI
27th Jul 2026589 PMAQI
27th Jul 20265310 PMAQI
27th Jul 20265411 PMAQI
28th Jul 20265412 AMAQI
28th Jul 2026461 AMAQI
28th Jul 2026382 AMAQI
28th Jul 2026563 AMAQI
24°C20/28°C
28th Jul 2026744 AMAQI
28th Jul 2026695 AMAQI
28th Jul 2026636 AMAQI
28th Jul 2026677 AMAQI
28th Jul 2026718 AMAQI
28th Jul 2026789 AMAQI
28th Jul 20266210 AMAQI
28th Jul 20265811 AMAQI
28th Jul 20265412 PMAQI
28th Jul 2026641 PMAQI
28th Jul 2026682 PMAQI
28th Jul 2026803 PMAQI
28th Jul 2026764 PMAQI
28th Jul 2026605 PMAQI
28th Jul 2026606 PMAQI
28th Jul 2026647 PMAQI
28th Jul 2026668 PMAQI
28th Jul 2026819 PMAQI
28th Jul 20268210 PMAQI
28th Jul 20265211 PMAQI
29th Jul 20263612 AMAQI
29th Jul 2026381 AMAQI
29th Jul 2026382 AMAQI
29th Jul 2026293 AMAQI
26°C22/31°C
29th Jul 2026274 AMAQI
29th Jul 2026315 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026207 AMAQI
29th Jul 2026108 AMAQI
29th Jul 2026109 AMAQI
29th Jul 20261410 AMAQI
29th Jul 20262011 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026281 PMAQI
29th Jul 2026262 PMAQI
29th Jul 2026223 PMAQI
29th Jul 2026154 PMAQI
29th Jul 2026165 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026247 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026149 PMAQI
29th Jul 2026810 PMAQI
29th Jul 20261011 PMAQI
30th Jul 20261012 AMAQI
30th Jul 2026101 AMAQI
30th Jul 2026202 AMAQI
30th Jul 2026273 AMAQI
27°C23/32°C
30th Jul 2026234 AMAQI
30th Jul 2026185 AMAQI
30th Jul 202686 AMAQI
30th Jul 2026157 AMAQI
30th Jul 2026168 AMAQI
30th Jul 2026199 AMAQI
30th Jul 20261910 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20263212 PMAQI
30th Jul 2026321 PMAQI
30th Jul 2026342 PMAQI
30th Jul 2026343 PMAQI
30th Jul 2026264 PMAQI
30th Jul 2026265 PMAQI
30th Jul 2026316 PMAQI
30th Jul 2026207 PMAQI
30th Jul 2026238 PMAQI
30th Jul 2026319 PMAQI
30th Jul 20262710 PMAQI
30th Jul 20262911 PMAQI
31st Jul 20262512 AMAQI
31st Jul 2026271 AMAQI
31st Jul 2026532 AMAQI
31st Jul 2026543 AMAQI
26°C22/31°C
31st Jul 2026644 AMAQI
31st Jul 2026625 AMAQI
31st Jul 2026656 AMAQI
31st Jul 2026627 AMAQI
31st Jul 2026648 AMAQI
31st Jul 2026569 AMAQI
31st Jul 20266710 AMAQI
31st Jul 20268011 AMAQI
31st Jul 20268212 PMAQI
31st Jul 2026711 PMAQI
31st Jul 2026712 PMAQI
31st Jul 2026583 PMAQI
31st Jul 2026524 PMAQI
31st Jul 2026625 PMAQI
31st Jul 2026626 PMAQI
31st Jul 2026717 PMAQI
31st Jul 2026568 PMAQI
31st Jul 2026569 PMAQI
31st Jul 20265810 PMAQI
31st Jul 20266511 PMAQI
1st Aug 20266412 AMAQI
1st Aug 2026621 AMAQI
1st Aug 2026592 AMAQI
1st Aug 2026573 AMAQI
27°C23/32°C
1st Aug 2026444 AMAQI
1st Aug 2026215 AMAQI
1st Aug 2026196 AMAQI
1st Aug 2026217 AMAQI
1st Aug 2026258 AMAQI
1st Aug 2026279 AMAQI
1st Aug 20262110 AMAQI
1st Aug 20261411 AMAQI
1st Aug 20261412 PMAQI
1st Aug 2026291 PMAQI
1st Aug 2026322 PMAQI
1st Aug 2026303 PMAQI
1st Aug 2026324 PMAQI
1st Aug 2026315 PMAQI
1st Aug 2026426 PMAQI
1st Aug 2026467 PMAQI
1st Aug 2026308 PMAQI
1st Aug 2026219 PMAQI
1st Aug 20261910 PMAQI
1st Aug 20261111 PMAQI
2nd Aug 20261012 AMAQI
2nd Aug 2026101 AMAQI
2nd Aug 2026102 AMAQI
2nd Aug 2026103 AMAQI
24°C23/27°C
2nd Aug 2026114 AMAQI
2nd Aug 2026115 AMAQI
2nd Aug 2026106 AMAQI
2nd Aug 202697 AMAQI
2nd Aug 2026108 AMAQI
2nd Aug 2026109 AMAQI
2nd Aug 20261010 AMAQI
2nd Aug 20261011 AMAQI
2nd Aug 20261812 PMAQI
2nd Aug 2026191 PMAQI
2nd Aug 2026222 PMAQI
2nd Aug 2026233 PMAQI
2nd Aug 2026184 PMAQI
2nd Aug 2026205 PMAQI
2nd Aug 2026196 PMAQI
2nd Aug 2026207 PMAQI
2nd Aug 2026208 PMAQI
2nd Aug 2026269 PMAQI
2nd Aug 20262210 PMAQI
2nd Aug 20262011 PMAQI
3rd Aug 20262312 AMAQI
3rd Aug 2026251 AMAQI
3rd Aug 2026272 AMAQI
3rd Aug 2026283 AMAQI
23°C19/27°C
3rd Aug 2026294 AMAQI
3rd Aug 2026255 AMAQI
3rd Aug 2026216 AMAQI
3rd Aug 2026237 AMAQI
3rd Aug 2026298 AMAQI
3rd Aug 2026299 AMAQI
3rd Aug 20262910 AMAQI
3rd Aug 20262511 AMAQI
3rd Aug 20263612 PMAQI
3rd Aug 2026361 PMAQI
3rd Aug 2026382 PMAQI
3rd Aug 2026323 PMAQI
3rd Aug 2026324 PMAQI
3rd Aug 2026315 PMAQI
3rd Aug 2026426 PMAQI
3rd Aug 2026447 PMAQI
3rd Aug 2026508 PMAQI
3rd Aug 2026679 PMAQI
3rd Aug 20267210 PMAQI
3rd Aug 20265711 PMAQI
4th Aug 20264212 AMAQI
4th Aug 2026381 AMAQI
4th Aug 2026422 AMAQI
4th Aug 2026423 AMAQI
26°C21/30°C
4th Aug 202684 AMAQI
4th Aug 202685 AMAQI
4th Aug 202686 AMAQI
4th Aug 202687 AMAQI
4th Aug 202688 AMAQI
4th Aug 2026109 AMAQI
4th Aug 20261310 AMAQI
4th Aug 20261611 AMAQI
4th Aug 20262012 PMAQI
4th Aug 2026421 PMAQI
4th Aug 2026522 PMAQI
4th Aug 2026443 PMAQI
4th Aug 2026354 PMAQI
4th Aug 2026275 PMAQI
4th Aug 2026276 PMAQI
4th Aug 2026187 PMAQI
4th Aug 2026108 PMAQI
4th Aug 2026129 PMAQI
4th Aug 20261010 PMAQI
4th Aug 20261311 PMAQI
5th Aug 20262712 AMAQI
5th Aug 2026381 AMAQI
5th Aug 2026362 AMAQI
5th Aug 2026343 AMAQI
27°C24/31°C
5th Aug 2026384 AMAQI
5th Aug 2026355 AMAQI
5th Aug 2026366 AMAQI
5th Aug 2026107 AMAQI
5th Aug 2026108 AMAQI
5th Aug 2026129 AMAQI
5th Aug 20262110 AMAQI
5th Aug 20262411 AMAQI
5th Aug 20262012 PMAQI
5th Aug 202681 PMAQI
5th Aug 2026142 PMAQI
5th Aug 2026283 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026275 PMAQI
5th Aug 2026286 PMAQI
5th Aug 2026337 PMAQI
5th Aug 2026368 PMAQI
5th Aug 2026529 PMAQI
5th Aug 20266310 PMAQI
5th Aug 20263811 PMAQI
6th Aug 20265212 AMAQI
6th Aug 2026511 AMAQI
6th Aug 2026542 AMAQI
6th Aug 2026553 AMAQI
26°C23/31°C
6th Aug 2026534 AMAQI
6th Aug 2026515 AMAQI
6th Aug 2026406 AMAQI
6th Aug 2026287 AMAQI
6th Aug 2026288 AMAQI
6th Aug 2026229 AMAQI
6th Aug 20262210 AMAQI
6th Aug 20262711 AMAQI
6th Aug 20262712 PMAQI
6th Aug 2026251 PMAQI
6th Aug 2026212 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026504 PMAQI
6th Aug 2026525 PMAQI
6th Aug 2026256 PMAQI
6th Aug 2026247 PMAQI
6th Aug 2026268 PMAQI
6th Aug 2026289 PMAQI
6th Aug 20263410 PMAQI
6th Aug 20262711 PMAQI
7th Aug 20264212 AMAQI
7th Aug 2026361 AMAQI
7th Aug 2026292 AMAQI
7th Aug 2026273 AMAQI
27°C22/32°C
7th Aug 2026254 AMAQI
7th Aug 2026275 AMAQI
7th Aug 2026256 AMAQI
7th Aug 2026257 AMAQI
7th Aug 2026258 AMAQI
7th Aug 2026259 AMAQI
7th Aug 20262510 AMAQI
7th Aug 20263411 AMAQI
7th Aug 20265412 PMAQI
7th Aug 2026271 PMAQI
7th Aug 2026292 PMAQI
7th Aug 2026403 PMAQI
7th Aug 2026424 PMAQI
7th Aug 2026315 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026387 PMAQI
7th Aug 2026488 PMAQI
7th Aug 2026429 PMAQI
7th Aug 20264010 PMAQI
7th Aug 20264011 PMAQI
8th Aug 20263612 AMAQI
8th Aug 2026251 AMAQI
8th Aug 2026292 AMAQI
8th Aug 2026383 AMAQI
18°C14/21°C
8th Aug 2026214 AMAQI
8th Aug 2026295 AMAQI
8th Aug 2026426 AMAQI
8th Aug 2026337 AMAQI
8th Aug 2026518 AMAQI
8th Aug 2026629 AMAQI
8th Aug 20265210 AMAQI
8th Aug 20263611 AMAQI
8th Aug 20262912 PMAQI
8th Aug 2026251 PMAQI
8th Aug 2026212 PMAQI
8th Aug 2026233 PMAQI
8th Aug 2026214 PMAQI
8th Aug 2026275 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026257 PMAQI
8th Aug 2026218 PMAQI
8th Aug 2026279 PMAQI
8th Aug 20262910 PMAQI
8th Aug 20262311 PMAQI
9th Aug 20262512 AMAQI
9th Aug 2026231 AMAQI
9th Aug 2026302 AMAQI
9th Aug 2026423 AMAQI
17°C11/22°C
9th Aug 2026214 AMAQI
9th Aug 2026255 AMAQI
9th Aug 2026236 AMAQI
9th Aug 2026407 AMAQI
9th Aug 2026338 AMAQI
9th Aug 2026519 AMAQI
9th Aug 20265310 AMAQI
9th Aug 20263111 AMAQI
9th Aug 20263312 PMAQI
9th Aug 2026521 PMAQI
9th Aug 2026382 PMAQI
9th Aug 2026363 PMAQI
9th Aug 2026284 PMAQI
9th Aug 2026345 PMAQI
9th Aug 2026336 PMAQI
9th Aug 2026257 PMAQI
9th Aug 2026258 PMAQI
9th Aug 2026389 PMAQI
9th Aug 20262510 PMAQI
9th Aug 20262211 PMAQI
10th Aug 20262612 AMAQI
10th Aug 2026251 AMAQI
10th Aug 2026332 AMAQI
10th Aug 2026423 AMAQI
18°C12/24°C
10th Aug 2026464 AMAQI
10th Aug 2026315 AMAQI
10th Aug 2026216 AMAQI
10th Aug 2026237 AMAQI
10th Aug 2026258 AMAQI
10th Aug 2026219 AMAQI
10th Aug 20262110 AMAQI
10th Aug 20262211 AMAQI
10th Aug 20262812 PMAQI
10th Aug 2026331 PMAQI
10th Aug 2026292 PMAQI
10th Aug 2026303 PMAQI
10th Aug 2026364 PMAQI
10th Aug 2026385 PMAQI
10th Aug 2026256 PMAQI
10th Aug 2026307 PMAQI
10th Aug 2026368 PMAQI
10th Aug 2026529 PMAQI
10th Aug 20264410 PMAQI
10th Aug 20264011 PMAQI
11th Aug 20263612 AMAQI
11th Aug 2026381 AMAQI
11th Aug 2026422 AMAQI
11th Aug 2026403 AMAQI
22°C15/28°C
11th Aug 2026444 AMAQI
11th Aug 2026365 AMAQI
11th Aug 2026406 AMAQI
11th Aug 2026337 AMAQI
11th Aug 2026318 AMAQI
11th Aug 2026299 AMAQI
11th Aug 20263610 AMAQI
11th Aug 20264511 AMAQI
11th Aug 20265812 PMAQI
11th Aug 2026561 PMAQI
11th Aug 2026532 PMAQI
11th Aug 2026453 PMAQI
11th Aug 2026424 PMAQI
11th Aug 2026385 PMAQI
11th Aug 2026406 PMAQI
11th Aug 2026427 PMAQI
11th Aug 2026348 PMAQI
11th Aug 2026389 PMAQI
11th Aug 20264010 PMAQI
11th Aug 20265111 PMAQI
12th Aug 20264812 AMAQI
12th Aug 2026401 AMAQI
12th Aug 2026362 AMAQI
12th Aug 2026333 AMAQI
26°C22/30°C
12th Aug 2026284 AMAQI
12th Aug 2026275 AMAQI
12th Aug 2026316 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026268 AMAQI
12th Aug 2026269 AMAQI
12th Aug 20264010 AMAQI
12th Aug 20262211 AMAQI
12th Aug 20265412 PMAQI
12th Aug 2026541 PMAQI
12th Aug 2026572 PMAQI
12th Aug 2026423 PMAQI
12th Aug 2026404 PMAQI
12th Aug 2026335 PMAQI
12th Aug 2026386 PMAQI
12th Aug 2026367 PMAQI
12th Aug 2026388 PMAQI
12th Aug 2026339 PMAQI
12th Aug 20262510 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20262212 AMAQI
13th Aug 2026241 AMAQI
13th Aug 2026282 AMAQI
13th Aug 2026223 AMAQI
26°C21/31°C
13th Aug 2026234 AMAQI
4 AM13th Aug 2026215 AMAQI
13th Aug 2026246 AMAQI
13th Aug 2026257 AMAQI
13th Aug 2026258 AMAQI
13th Aug 2026219 AMAQI
13th Aug 20264210 AMAQI
13th Aug 20265111 AMAQI
11 AM13th Aug 20262512 PMAQI
13th Aug 2026381 PMAQI
13th Aug 2026342 PMAQI
13th Aug 2026463 PMAQI
13th Aug 2026334 PMAQI
13th Aug 2026255 PMAQI
13th Aug 2026216 PMAQI
13th Aug 2026297 PMAQI
7 PM13th Aug 2026278 PMAQI
13th Aug 2026429 PMAQI
13th Aug 20263810 PMAQI
13th Aug 20262311 PMAQI
11 PM3 AM
21°C19/25°C
Day time
Avg. Highest Time
4 AM
39AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
8 AM
32AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 4 AM (Avg. 39), while the lowest AQI was between 8 AM to 8 AM (Avg. 32).
Night time
Avg. Highest Time
3 AM
40AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
11 PM
34AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 3 AM (Avg. 40), while the lowest AQI was between 11 PM to 11 PM (Avg. 34).
2026 Days Vs Air Quality
Hulan Normal College, Harbin, Heilongjiang, China
2026
40%
90
34%
77
21%
48
4%
10
Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)
Good
90 DaysModerate
77 DaysPoor
48 DaysUnhealthy
10 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 40%
Health Risk Level:
Significant
In 2026, 40% of 225 days were within WHO’s safe air quality limits, and 60% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Hulan Normal College, Harbin, Heilongjiang, China
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
91AQI (US)
91AQI (US)
2nd January 2026
139AQI (US)
139AQI (US)
3rd January 2026
164AQI (US)
164AQI (US)
4th January 2026
124AQI (US)
124AQI (US)
5th January 2026
104AQI (US)
104AQI (US)
6th January 2026
129AQI (US)
129AQI (US)
7th January 2026
76AQI (US)
76AQI (US)
8th January 2026
96AQI (US)
96AQI (US)
9th January 2026
121AQI (US)
121AQI (US)
10th January 2026
136AQI (US)
136AQI (US)
11th January 2026
140AQI (US)
140AQI (US)
12th January 2026
151AQI (US)
151AQI (US)
13th January 2026
124AQI (US)
124AQI (US)
14th January 2026
83AQI (US)
83AQI (US)
15th January 2026
166AQI (US)
166AQI (US)
16th January 2026
149AQI (US)
149AQI (US)
17th January 2026
114AQI (US)
114AQI (US)
18th January 2026
149AQI (US)
149AQI (US)
19th January 2026
133AQI (US)
133AQI (US)
20th January 2026
87AQI (US)
87AQI (US)
21st January 2026
132AQI (US)
132AQI (US)
22nd January 2026
99AQI (US)
99AQI (US)
23rd January 2026
116AQI (US)
116AQI (US)
24th January 2026
129AQI (US)
129AQI (US)
25th January 2026
128AQI (US)
128AQI (US)
26th January 2026
150AQI (US)
150AQI (US)
27th January 2026
138AQI (US)
138AQI (US)
28th January 2026
137AQI (US)
137AQI (US)
29th January 2026
124AQI (US)
124AQI (US)
30th January 2026
79AQI (US)
79AQI (US)
31st January 2026
127AQI (US)
127AQI (US)
1st February 2026
141AQI (US)
141AQI (US)
2nd February 2026
113AQI (US)
113AQI (US)
3rd February 2026
50AQI (US)
50AQI (US)
4th February 2026
109AQI (US)
109AQI (US)
5th February 2026
113AQI (US)
113AQI (US)
6th February 2026
56AQI (US)
56AQI (US)
7th February 2026
98AQI (US)
98AQI (US)
8th February 2026
71AQI (US)
71AQI (US)
9th February 2026
127AQI (US)
127AQI (US)
10th February 2026
148AQI (US)
148AQI (US)
11th February 2026
123AQI (US)
123AQI (US)
12th February 2026
140AQI (US)
140AQI (US)
13th February 2026
110AQI (US)
110AQI (US)
14th February 2026
146AQI (US)
146AQI (US)
15th February 2026
63AQI (US)
63AQI (US)
16th February 2026
70AQI (US)
70AQI (US)
17th February 2026
94AQI (US)
94AQI (US)
18th February 2026
76AQI (US)
76AQI (US)
19th February 2026
99AQI (US)
99AQI (US)
20th February 2026
124AQI (US)
124AQI (US)
21st February 2026
141AQI (US)
141AQI (US)
22nd February 2026
80AQI (US)
80AQI (US)
23rd February 2026
51AQI (US)
51AQI (US)
24th February 2026
33AQI (US)
33AQI (US)
25th February 2026
71AQI (US)
71AQI (US)
26th February 2026
51AQI (US)
51AQI (US)
27th February 2026
44AQI (US)
44AQI (US)
28th February 2026
55AQI (US)
55AQI (US)
1st March 2026
49AQI (US)
49AQI (US)
2nd March 2026
56AQI (US)
56AQI (US)
3rd March 2026
59AQI (US)
59AQI (US)
4th March 2026
108AQI (US)
108AQI (US)
5th March 2026
130AQI (US)
130AQI (US)
6th March 2026
88AQI (US)
88AQI (US)
7th March 2026
105AQI (US)
105AQI (US)
8th March 2026
102AQI (US)
102AQI (US)
9th March 2026
83AQI (US)
83AQI (US)
10th March 2026
87AQI (US)
87AQI (US)
11th March 2026
80AQI (US)
80AQI (US)
12th March 2026
90AQI (US)
90AQI (US)
13th March 2026
91AQI (US)
91AQI (US)
14th March 2026
58AQI (US)
58AQI (US)
15th March 2026
90AQI (US)
90AQI (US)
16th March 2026
67AQI (US)
67AQI (US)
17th March 2026
139AQI (US)
139AQI (US)
18th March 2026
109AQI (US)
109AQI (US)
19th March 2026
104AQI (US)
104AQI (US)
20th March 2026
95AQI (US)
95AQI (US)
21st March 2026
140AQI (US)
140AQI (US)
22nd March 2026
166AQI (US)
166AQI (US)
23rd March 2026
173AQI (US)
173AQI (US)
24th March 2026
176AQI (US)
176AQI (US)
25th March 2026
166AQI (US)
166AQI (US)
26th March 2026
153AQI (US)
153AQI (US)
27th March 2026
134AQI (US)
134AQI (US)
28th March 2026
161AQI (US)
161AQI (US)
29th March 2026
130AQI (US)
130AQI (US)
30th March 2026
66AQI (US)
66AQI (US)
31st March 2026
140AQI (US)
140AQI (US)
1st April 2026
109AQI (US)
109AQI (US)
2nd April 2026
158AQI (US)
158AQI (US)
3rd April 2026
128AQI (US)
128AQI (US)
4th April 2026
109AQI (US)
109AQI (US)
5th April 2026
99AQI (US)
99AQI (US)
6th April 2026
80AQI (US)
80AQI (US)
7th April 2026
57AQI (US)
57AQI (US)
8th April 2026
60AQI (US)
60AQI (US)
9th April 2026
45AQI (US)
45AQI (US)
10th April 2026
72AQI (US)
72AQI (US)
11th April 2026
41AQI (US)
41AQI (US)
12th April 2026
53AQI (US)
53AQI (US)
13th April 2026
31AQI (US)
31AQI (US)
14th April 2026
86AQI (US)
86AQI (US)
15th April 2026
101AQI (US)
101AQI (US)
16th April 2026
85AQI (US)
85AQI (US)
17th April 2026
91AQI (US)
91AQI (US)
18th April 2026
57AQI (US)
57AQI (US)
19th April 2026
64AQI (US)
64AQI (US)
20th April 2026
56AQI (US)
56AQI (US)
21st April 2026
46AQI (US)
46AQI (US)
22nd April 2026
28AQI (US)
28AQI (US)
23rd April 2026
75AQI (US)
75AQI (US)
24th April 2026
68AQI (US)
68AQI (US)
25th April 2026
41AQI (US)
41AQI (US)
26th April 2026
31AQI (US)
31AQI (US)
27th April 2026
29AQI (US)
29AQI (US)
28th April 2026
35AQI (US)
35AQI (US)
29th April 2026
40AQI (US)
40AQI (US)
30th April 2026
58AQI (US)
58AQI (US)
1st May 2026
45AQI (US)
45AQI (US)
2nd May 2026
34AQI (US)
34AQI (US)
3rd May 2026
50AQI (US)
50AQI (US)
4th May 2026
42AQI (US)
42AQI (US)
5th May 2026
48AQI (US)
48AQI (US)
6th May 2026
32AQI (US)
32AQI (US)
7th May 2026
62AQI (US)
62AQI (US)
8th May 2026
37AQI (US)
37AQI (US)
9th May 2026
36AQI (US)
36AQI (US)
10th May 2026
57AQI (US)
57AQI (US)
11th May 2026
69AQI (US)
69AQI (US)
12th May 2026
70AQI (US)
70AQI (US)
13th May 2026
77AQI (US)
77AQI (US)
14th May 2026
83AQI (US)
83AQI (US)
15th May 2026
45AQI (US)
45AQI (US)
16th May 2026
78AQI (US)
78AQI (US)
17th May 2026
66AQI (US)
66AQI (US)
18th May 2026
57AQI (US)
57AQI (US)
19th May 2026
54AQI (US)
54AQI (US)
20th May 2026
64AQI (US)
64AQI (US)
21st May 2026
67AQI (US)
67AQI (US)
22nd May 2026
79AQI (US)
79AQI (US)
23rd May 2026
72AQI (US)
72AQI (US)
24th May 2026
70AQI (US)
70AQI (US)
25th May 2026
66AQI (US)
66AQI (US)
26th May 2026
46AQI (US)
46AQI (US)
27th May 2026
34AQI (US)
34AQI (US)
28th May 2026
29AQI (US)
29AQI (US)
29th May 2026
34AQI (US)
34AQI (US)
30th May 2026
22AQI (US)
22AQI (US)
31st May 2026
46AQI (US)
46AQI (US)
1st June 2026
51AQI (US)
51AQI (US)
2nd June 2026
38AQI (US)
38AQI (US)
3rd June 2026
33AQI (US)
33AQI (US)
4th June 2026
21AQI (US)
21AQI (US)
5th June 2026
16AQI (US)
16AQI (US)
6th June 2026
37AQI (US)
37AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
19AQI (US)
19AQI (US)
9th June 2026
23AQI (US)
23AQI (US)
10th June 2026
31AQI (US)
31AQI (US)
11th June 2026
37AQI (US)
37AQI (US)
12th June 2026
38AQI (US)
38AQI (US)
13th June 2026
30AQI (US)
30AQI (US)
14th June 2026
30AQI (US)
30AQI (US)
15th June 2026
37AQI (US)
37AQI (US)
16th June 2026
42AQI (US)
42AQI (US)
17th June 2026
44AQI (US)
44AQI (US)
18th June 2026
40AQI (US)
40AQI (US)
19th June 2026
70AQI (US)
70AQI (US)
20th June 2026
59AQI (US)
59AQI (US)
21st June 2026
19AQI (US)
19AQI (US)
22nd June 2026
32AQI (US)
32AQI (US)
23rd June 2026
42AQI (US)
42AQI (US)
24th June 2026
51AQI (US)
51AQI (US)
25th June 2026
33AQI (US)
33AQI (US)
26th June 2026
37AQI (US)
37AQI (US)
27th June 2026
46AQI (US)
46AQI (US)
28th June 2026
38AQI (US)
38AQI (US)
29th June 2026
46AQI (US)
46AQI (US)
30th June 2026
65AQI (US)
65AQI (US)
1st July 2026
60AQI (US)
60AQI (US)
2nd July 2026
52AQI (US)
52AQI (US)
3rd July 2026
56AQI (US)
56AQI (US)
4th July 2026
22AQI (US)
22AQI (US)
5th July 2026
36AQI (US)
36AQI (US)
6th July 2026
56AQI (US)
56AQI (US)
7th July 2026
29AQI (US)
29AQI (US)
8th July 2026
19AQI (US)
19AQI (US)
9th July 2026
31AQI (US)
31AQI (US)
10th July 2026
40AQI (US)
40AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
24AQI (US)
24AQI (US)
13th July 2026
38AQI (US)
38AQI (US)
14th July 2026
46AQI (US)
46AQI (US)
15th July 2026
36AQI (US)
36AQI (US)
16th July 2026
19AQI (US)
19AQI (US)
17th July 2026
30AQI (US)
30AQI (US)
18th July 2026
33AQI (US)
33AQI (US)
19th July 2026
28AQI (US)
28AQI (US)
20th July 2026
49AQI (US)
49AQI (US)
21st July 2026
49AQI (US)
49AQI (US)
22nd July 2026
54AQI (US)
54AQI (US)
23rd July 2026
75AQI (US)
75AQI (US)
24th July 2026
31AQI (US)
31AQI (US)
25th July 2026
26AQI (US)
26AQI (US)
26th July 2026
33AQI (US)
33AQI (US)
27th July 2026
43AQI (US)
43AQI (US)
28th July 2026
64AQI (US)
64AQI (US)
29th July 2026
22AQI (US)
22AQI (US)
30th July 2026
23AQI (US)
23AQI (US)
31st July 2026
60AQI (US)
60AQI (US)
1st August 2026
32AQI (US)
32AQI (US)
2nd August 2026
15AQI (US)
15AQI (US)
3rd August 2026
35AQI (US)
35AQI (US)
4th August 2026
23AQI (US)
23AQI (US)
5th August 2026
29AQI (US)
29AQI (US)
6th August 2026
35AQI (US)
35AQI (US)
7th August 2026
34AQI (US)
34AQI (US)
8th August 2026
31AQI (US)
31AQI (US)
9th August 2026
33AQI (US)
33AQI (US)
10th August 2026
32AQI (US)
32AQI (US)
11th August 2026
41AQI (US)
41AQI (US)
12th August 2026
36AQI (US)
36AQI (US)
13th August 2026
30AQI (US)
30AQI (US)
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
124AQI (US)
93AQI (US)
110AQI (US)
68AQI (US)
54AQI (US)
38AQI (US)
39AQI (US)
31AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202672AQI (US)
7
21
3
3
13
12
1
13
11
6
10
15
4
1
15
16
25
5
23
8
13
90
77
48
10
Highest AQI (US) recorded in
January124AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202592AQI (US)
8
17
6
13
11
4
1
23
5
1
1
1
18
8
3
1
28
2
12
18
18
13
28
3
18
12
20
9
1
1
6
11
12
1
9
15
7
79
163
69
45
9
Highest AQI (US) recorded in
January172AQI (US)
Lowest AQI (US) recorded in
August41AQI (US)
202497AQI (US)
2
14
9
5
1
6
9
6
3
1
20
11
10
14
1
5
7
17
7
14
15
1
8
15
6
2
21
10
19
11
3
19
9
5
13
8
4
10
20
1
72
140
104
27
17
2
Highest AQI (US) recorded in
January159AQI (US)
Lowest AQI (US) recorded in
August45AQI (US)
202395AQI (US)
2
13
8
6
1
5
11
10
2
1
13
10
5
2
14
9
4
3
5
22
2
1
1
9
19
2
17
12
2
26
5
16
14
7
17
6
1
1
11
12
5
8
10
10
3
82
142
77
44
17
1
Highest AQI (US) recorded in
January161AQI (US)
Lowest AQI (US) recorded in
August40AQI (US)
202299AQI (US)
8
13
4
5
5
4
9
3
3
17
9
2
1
13
9
5
2
7
20
3
1
15
15
12
12
1
1
11
15
2
8
13
8
2
9
14
7
1
16
10
1
3
59
136
67
40
12
5
Highest AQI (US) recorded in
January195AQI (US)
Lowest AQI (US) recorded in
July50AQI (US)
202191AQI (US)
1
18
10
2
1
4
5
3
2
14
12
4
1
11
13
3
3
4
20
7
9
20
1
7
23
1
17
11
2
20
10
6
21
2
2
11
9
10
8
21
2
64
154
91
34
8
Highest AQI (US) recorded in
January152AQI (US)
Lowest AQI (US) recorded in
September46AQI (US)
202077AQI (US)
9
3
1
3
9
2
5
2
6
11
1
23
6
1
11
18
2
21
10
17
13
7
21
1
1
1
3
12
9
6
2
21
7
1
91
111
40
20
2
2
Highest AQI (US) recorded in
April143AQI (US)
Lowest AQI (US) recorded in
June43AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2022(Avg.)
99AQI (US)Least Polluted Year Recorded
2026(Avg.)
72AQI (US)Hulan Normal College's annual 2026 AQI (US) (72) shows an average percentage change of -21.06% (improved AQI (US)) compared to previous years: 2020 (77), 2021 (91), 2022 (99), 2023 (95), 2024 (97), 2025 (92).
