Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

City Center, Dayan, Yunnan, 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+

February Air Quality Analysis

City Center, Dayan, Yunnan, China

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
10th Feb 2024
86AQI
Lowest AQI recorded on
8th Feb 2026
19AQI

Same Day Analysis (8th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 19 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 7th Feb - 8th Feb 2026

City Center, Dayan, Yunnan, China

AQI
Day
Night
.

7 AM7th Feb 2026

5 PM

6 AM8th Feb 2026

Day time
Avg. Highest Time
12PM7th Feb

33AQI

Avg. Lowest Time
6PM7th Feb

8AQI

Night time
Avg. Highest Time
9PM7th Feb

29AQI

Avg. Lowest Time
7PM7th Feb

8AQI

In the last 24 hours,

City Center's AQI reached its highest point of 33 at 12 PM during the Day, while the lowest point, 8, was recorded at 7 PM during the Night between 7th Feb and 8th Feb 2026.

Day & Night AQI Trend : Jan - Feb 2026

City Center, Dayan, Yunnan, China

JanFeb
10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th
Day
Night
10th Jan 2026167 AMAQI
10th Jan 2026148 AMAQI
10th Jan 2026179 AMAQI
10th Jan 20261910 AMAQI
10th Jan 20261811 AMAQI
10th Jan 20262912 PMAQI
10th Jan 2026271 PMAQI
10th Jan 2026232 PMAQI
10th Jan 2026183 PMAQI
10th Jan 2026184 PMAQI
10th Jan 2026265 PMAQI
10th Jan 2026346 PMAQI
10th Jan 2026127 PMAQI
10th Jan 2026178 PMAQI
10th Jan 2026179 PMAQI
10th Jan 20261710 PMAQI
10th Jan 20261711 PMAQI
11th Jan 20262312 AMAQI
11th Jan 2026171 AMAQI
11th Jan 2026212 AMAQI
11th Jan 2026213 AMAQI
11th Jan 2026194 AMAQI
11th Jan 2026325 AMAQI

3°C-4/12°C

11th Jan 2026317 AMAQI
11th Jan 2026568 AMAQI
11th Jan 2026179 AMAQI
11th Jan 20261410 AMAQI
11th Jan 20261711 AMAQI
11th Jan 20261212 PMAQI
11th Jan 2026331 PMAQI
11th Jan 2026162 PMAQI
11th Jan 2026313 PMAQI
11th Jan 2026174 PMAQI
11th Jan 2026165 PMAQI
11th Jan 2026176 PMAQI
11th Jan 2026197 PMAQI
11th Jan 2026198 PMAQI
11th Jan 2026249 PMAQI
11th Jan 20263310 PMAQI
11th Jan 20264411 PMAQI
12th Jan 20265112 AMAQI
12th Jan 2026481 AMAQI
12th Jan 2026462 AMAQI
12th Jan 2026253 AMAQI
12th Jan 2026254 AMAQI
12th Jan 2026255 AMAQI
12th Jan 2026126 AMAQI

4°C-3/15°C

12th Jan 2026127 AMAQI
12th Jan 2026148 AMAQI
12th Jan 2026219 AMAQI
12th Jan 20261710 AMAQI
12th Jan 20264211 AMAQI
12th Jan 20262212 PMAQI
12th Jan 2026281 PMAQI
12th Jan 2026362 PMAQI
12th Jan 2026333 PMAQI
12th Jan 2026164 PMAQI
12th Jan 2026155 PMAQI
12th Jan 2026186 PMAQI
12th Jan 2026197 PMAQI
12th Jan 2026218 PMAQI
12th Jan 2026239 PMAQI
12th Jan 20262510 PMAQI
12th Jan 20265111 PMAQI
13th Jan 20264212 AMAQI
13th Jan 2026401 AMAQI
13th Jan 2026332 AMAQI
13th Jan 2026223 AMAQI
13th Jan 2026214 AMAQI
13th Jan 2026215 AMAQI
13th Jan 2026216 AMAQI

5°C-2/14°C

13th Jan 2026217 AMAQI
13th Jan 2026218 AMAQI
13th Jan 2026279 AMAQI
13th Jan 20263310 AMAQI
13th Jan 20263611 AMAQI
13th Jan 20263612 PMAQI
13th Jan 2026521 PMAQI
13th Jan 2026532 PMAQI
13th Jan 2026403 PMAQI
13th Jan 2026214 PMAQI
13th Jan 2026145 PMAQI
13th Jan 2026176 PMAQI
13th Jan 2026127 PMAQI
13th Jan 2026148 PMAQI
13th Jan 2026239 PMAQI
13th Jan 20262910 PMAQI
13th Jan 20262911 PMAQI
14th Jan 20263312 AMAQI
14th Jan 2026311 AMAQI
14th Jan 2026232 AMAQI
14th Jan 2026173 AMAQI
14th Jan 2026124 AMAQI
14th Jan 2026175 AMAQI
14th Jan 2026206 AMAQI

5°C-2/15°C

14th Jan 2026177 AMAQI
14th Jan 2026208 AMAQI
14th Jan 2026219 AMAQI
14th Jan 20261210 AMAQI
14th Jan 20262111 AMAQI
14th Jan 20261612 PMAQI
14th Jan 2026171 PMAQI
14th Jan 2026122 PMAQI
14th Jan 2026193 PMAQI
14th Jan 2026234 PMAQI
14th Jan 2026335 PMAQI
14th Jan 2026216 PMAQI
14th Jan 2026227 PMAQI
14th Jan 2026228 PMAQI
14th Jan 2026219 PMAQI
14th Jan 20263610 PMAQI
14th Jan 20263811 PMAQI
15th Jan 20264012 AMAQI
15th Jan 2026401 AMAQI
15th Jan 2026402 AMAQI
15th Jan 2026363 AMAQI
15th Jan 2026364 AMAQI
15th Jan 2026275 AMAQI
15th Jan 2026216 AMAQI

5°C-2/15°C

15th Jan 2026177 AMAQI
15th Jan 2026128 AMAQI
15th Jan 2026199 AMAQI
15th Jan 20261910 AMAQI
15th Jan 20262111 AMAQI
15th Jan 20262112 PMAQI
15th Jan 2026251 PMAQI
15th Jan 2026252 PMAQI
15th Jan 2026253 PMAQI
15th Jan 2026174 PMAQI
15th Jan 2026145 PMAQI
15th Jan 2026126 PMAQI
15th Jan 2026177 PMAQI
15th Jan 2026178 PMAQI
15th Jan 2026239 PMAQI
15th Jan 20262710 PMAQI
15th Jan 20262511 PMAQI
16th Jan 20262712 AMAQI
16th Jan 2026231 AMAQI
16th Jan 2026212 AMAQI
16th Jan 2026253 AMAQI
16th Jan 2026254 AMAQI
16th Jan 2026215 AMAQI
16th Jan 2026126 AMAQI

5°C-1/14°C

16th Jan 2026147 AMAQI
16th Jan 2026108 AMAQI
16th Jan 2026129 AMAQI
16th Jan 20261210 AMAQI
16th Jan 20261211 AMAQI
16th Jan 20261912 PMAQI
16th Jan 2026211 PMAQI
16th Jan 2026162 PMAQI
16th Jan 2026223 PMAQI
16th Jan 2026164 PMAQI
16th Jan 2026185 PMAQI
16th Jan 2026196 PMAQI
16th Jan 2026197 PMAQI
16th Jan 2026178 PMAQI
16th Jan 2026219 PMAQI
16th Jan 20262510 PMAQI
16th Jan 20262911 PMAQI
17th Jan 20263312 AMAQI
17th Jan 2026331 AMAQI
17th Jan 2026332 AMAQI
17th Jan 2026313 AMAQI
17th Jan 2026254 AMAQI
17th Jan 2026175 AMAQI
17th Jan 2026176 AMAQI

4°C-3/14°C

17th Jan 2026197 AMAQI
17th Jan 2026128 AMAQI
17th Jan 2026179 AMAQI
17th Jan 20261910 AMAQI
17th Jan 20262511 AMAQI
17th Jan 20262512 PMAQI
17th Jan 2026251 PMAQI
17th Jan 2026172 PMAQI
17th Jan 2026173 PMAQI
17th Jan 2026204 PMAQI
17th Jan 2026205 PMAQI
17th Jan 2026256 PMAQI
17th Jan 2026227 PMAQI
17th Jan 2026178 PMAQI
17th Jan 2026259 PMAQI
17th Jan 20262910 PMAQI
17th Jan 20263811 PMAQI
18th Jan 20264012 AMAQI
18th Jan 2026401 AMAQI
18th Jan 2026402 AMAQI
18th Jan 2026363 AMAQI
18th Jan 2026234 AMAQI
18th Jan 2026315 AMAQI
18th Jan 2026216 AMAQI

5°C-3/15°C

18th Jan 2026177 AMAQI
18th Jan 2026148 AMAQI
18th Jan 2026149 AMAQI
18th Jan 20261710 AMAQI
18th Jan 20261911 AMAQI
18th Jan 20261012 PMAQI
18th Jan 2026171 PMAQI
18th Jan 2026242 PMAQI
18th Jan 2026243 PMAQI
18th Jan 2026224 PMAQI
18th Jan 2026225 PMAQI
18th Jan 2026216 PMAQI
18th Jan 2026207 PMAQI
18th Jan 2026248 PMAQI
18th Jan 2026129 PMAQI
18th Jan 20263010 PMAQI
18th Jan 20262811 PMAQI
19th Jan 20262512 AMAQI
19th Jan 2026231 AMAQI
19th Jan 2026212 AMAQI
19th Jan 2026253 AMAQI
19th Jan 2026124 AMAQI
19th Jan 2026145 AMAQI
19th Jan 2026216 AMAQI

6°C-2/16°C

19th Jan 2026177 AMAQI
19th Jan 2026148 AMAQI
19th Jan 2026179 AMAQI
19th Jan 20261710 AMAQI
19th Jan 20261911 AMAQI
19th Jan 20261712 PMAQI
19th Jan 2026161 PMAQI
19th Jan 2026102 PMAQI
19th Jan 2026203 PMAQI
19th Jan 2026184 PMAQI
19th Jan 2026165 PMAQI
19th Jan 2026126 PMAQI
19th Jan 2026207 PMAQI
19th Jan 2026188 PMAQI
19th Jan 2026149 PMAQI
19th Jan 20261410 PMAQI
19th Jan 20262111 PMAQI
20th Jan 20262112 AMAQI
20th Jan 2026211 AMAQI
20th Jan 2026192 AMAQI
20th Jan 2026123 AMAQI
20th Jan 2026124 AMAQI
20th Jan 2026125 AMAQI
20th Jan 2026146 AMAQI

7°C-2/17°C

20th Jan 2026177 AMAQI
20th Jan 2026238 AMAQI
20th Jan 2026219 AMAQI
20th Jan 20262110 AMAQI
20th Jan 20261611 AMAQI
20th Jan 20261812 PMAQI
20th Jan 2026181 PMAQI
20th Jan 2026182 PMAQI
20th Jan 2026183 PMAQI
20th Jan 2026184 PMAQI
20th Jan 2026155 PMAQI
20th Jan 2026126 PMAQI
20th Jan 2026177 PMAQI
20th Jan 2026168 PMAQI
20th Jan 2026129 PMAQI
20th Jan 20261410 PMAQI
20th Jan 20262111 PMAQI
21st Jan 20261912 AMAQI
21st Jan 2026121 AMAQI
21st Jan 2026142 AMAQI
21st Jan 2026173 AMAQI
21st Jan 2026174 AMAQI
21st Jan 2026175 AMAQI
21st Jan 2026176 AMAQI

5°C-2/15°C

21st Jan 2026307 AMAQI
21st Jan 2026128 AMAQI
21st Jan 2026149 AMAQI
21st Jan 20261611 AMAQI
21st Jan 20261712 PMAQI
21st Jan 2026171 PMAQI
21st Jan 2026172 PMAQI
21st Jan 2026123 PMAQI
21st Jan 202684 PMAQI
21st Jan 2026225 PMAQI
21st Jan 2026266 PMAQI
21st Jan 2026147 PMAQI
21st Jan 2026128 PMAQI
21st Jan 2026159 PMAQI
21st Jan 20261710 PMAQI
21st Jan 20261711 PMAQI
22nd Jan 20261912 AMAQI
22nd Jan 2026211 AMAQI
22nd Jan 2026292 AMAQI
22nd Jan 2026363 AMAQI
22nd Jan 2026384 AMAQI
22nd Jan 2026295 AMAQI
22nd Jan 2026276 AMAQI

5°C-3/15°C

22nd Jan 2026277 AMAQI
22nd Jan 2026258 AMAQI
22nd Jan 2026179 AMAQI
22nd Jan 20261910 AMAQI
22nd Jan 20261711 AMAQI
22nd Jan 20262512 PMAQI
22nd Jan 2026231 PMAQI
22nd Jan 2026142 PMAQI
22nd Jan 2026143 PMAQI
22nd Jan 2026124 PMAQI
22nd Jan 2026205 PMAQI
22nd Jan 2026216 PMAQI
22nd Jan 2026117 PMAQI
22nd Jan 2026218 PMAQI
22nd Jan 2026259 PMAQI
22nd Jan 20264210 PMAQI
22nd Jan 20264011 PMAQI
23rd Jan 20263612 AMAQI
23rd Jan 2026311 AMAQI
23rd Jan 2026402 AMAQI
23rd Jan 2026313 AMAQI
23rd Jan 2026294 AMAQI
23rd Jan 2026275 AMAQI
23rd Jan 2026236 AMAQI

5°C-3/15°C

23rd Jan 2026257 AMAQI
23rd Jan 2026278 AMAQI
23rd Jan 2026259 AMAQI
23rd Jan 20262510 AMAQI
23rd Jan 20262911 AMAQI
23rd Jan 20261212 PMAQI
23rd Jan 2026121 PMAQI
23rd Jan 2026122 PMAQI
23rd Jan 2026183 PMAQI
23rd Jan 2026184 PMAQI
23rd Jan 2026265 PMAQI
23rd Jan 2026146 PMAQI
23rd Jan 2026197 PMAQI
23rd Jan 2026238 PMAQI
23rd Jan 2026369 PMAQI
23rd Jan 20264410 PMAQI
23rd Jan 20265011 PMAQI
24th Jan 20263612 AMAQI
24th Jan 2026401 AMAQI
24th Jan 2026402 AMAQI
24th Jan 2026363 AMAQI
24th Jan 2026334 AMAQI
24th Jan 2026295 AMAQI
24th Jan 2026126 AMAQI

5°C-2/15°C

24th Jan 2026257 AMAQI
24th Jan 2026218 AMAQI
24th Jan 2026179 AMAQI
24th Jan 20262110 AMAQI
24th Jan 20261211 AMAQI
24th Jan 20263012 PMAQI
24th Jan 2026261 PMAQI
24th Jan 2026282 PMAQI
24th Jan 2026213 PMAQI
24th Jan 2026184 PMAQI
24th Jan 2026145 PMAQI
24th Jan 2026126 PMAQI
24th Jan 2026167 PMAQI
24th Jan 2026148 PMAQI
24th Jan 202689 PMAQI
24th Jan 20261710 PMAQI
24th Jan 20262911 PMAQI
25th Jan 20262512 AMAQI
25th Jan 2026121 AMAQI
25th Jan 2026142 AMAQI
25th Jan 2026153 AMAQI
25th Jan 2026194 AMAQI
25th Jan 202685 AMAQI
25th Jan 2026126 AMAQI

6°C-2/17°C

25th Jan 2026107 AMAQI
25th Jan 2026108 AMAQI
25th Jan 2026129 AMAQI
25th Jan 20261310 AMAQI
25th Jan 20261811 AMAQI
25th Jan 20262412 PMAQI
25th Jan 2026171 PMAQI
25th Jan 2026202 PMAQI
25th Jan 2026123 PMAQI
25th Jan 2026124 PMAQI
25th Jan 2026175 PMAQI
25th Jan 2026166 PMAQI
25th Jan 2026177 PMAQI
25th Jan 2026208 PMAQI
25th Jan 202689 PMAQI
25th Jan 20262110 PMAQI
25th Jan 20261411 PMAQI
26th Jan 20261412 AMAQI
26th Jan 2026251 AMAQI
26th Jan 2026272 AMAQI
26th Jan 2026213 AMAQI
26th Jan 2026174 AMAQI
26th Jan 2026405 AMAQI
26th Jan 2026366 AMAQI

6°C-2/17°C

26th Jan 2026337 AMAQI
26th Jan 2026408 AMAQI
26th Jan 20264410 AMAQI
26th Jan 20265211 AMAQI
26th Jan 20263212 PMAQI
26th Jan 2026301 PMAQI
26th Jan 2026242 PMAQI
26th Jan 2026183 PMAQI
26th Jan 2026194 PMAQI
26th Jan 2026185 PMAQI
26th Jan 2026226 PMAQI
26th Jan 2026337 PMAQI
26th Jan 2026228 PMAQI
26th Jan 2026179 PMAQI
26th Jan 20261410 PMAQI
26th Jan 20263611 PMAQI
27th Jan 20263612 AMAQI
27th Jan 2026361 AMAQI
27th Jan 2026402 AMAQI
27th Jan 2026333 AMAQI
27th Jan 2026314 AMAQI
27th Jan 2026365 AMAQI
27th Jan 2026386 AMAQI

6°C-2/15°C

27th Jan 2026427 AMAQI
27th Jan 2026318 AMAQI
27th Jan 2026319 AMAQI
27th Jan 20263310 AMAQI
27th Jan 20262711 AMAQI
27th Jan 20262512 PMAQI
27th Jan 2026251 PMAQI
27th Jan 2026252 PMAQI
27th Jan 2026253 PMAQI
27th Jan 2026404 PMAQI
27th Jan 2026555 PMAQI
27th Jan 2026506 PMAQI
27th Jan 2026407 PMAQI
27th Jan 2026368 PMAQI
27th Jan 2026429 PMAQI
27th Jan 20264210 PMAQI
27th Jan 20264211 PMAQI
28th Jan 20262712 AMAQI
28th Jan 2026461 AMAQI
28th Jan 2026312 AMAQI
28th Jan 2026253 AMAQI
28th Jan 2026214 AMAQI
28th Jan 2026255 AMAQI
28th Jan 2026216 AMAQI

6°C-2/16°C

28th Jan 2026197 AMAQI
28th Jan 2026258 AMAQI
28th Jan 2026259 AMAQI
28th Jan 20262110 AMAQI
28th Jan 20261711 AMAQI
28th Jan 20261412 PMAQI
28th Jan 2026111 PMAQI
28th Jan 2026102 PMAQI
28th Jan 2026173 PMAQI
28th Jan 2026154 PMAQI
28th Jan 2026145 PMAQI
28th Jan 2026126 PMAQI
28th Jan 2026177 PMAQI
28th Jan 2026128 PMAQI
28th Jan 2026129 PMAQI
28th Jan 20261411 PMAQI
29th Jan 20261412 AMAQI
29th Jan 2026201 AMAQI
29th Jan 2026122 AMAQI
29th Jan 2026273 AMAQI
29th Jan 2026204 AMAQI
29th Jan 2026305 AMAQI
29th Jan 2026196 AMAQI

7°C-2/17°C

29th Jan 2026257 AMAQI
29th Jan 2026198 AMAQI
29th Jan 2026219 AMAQI
29th Jan 20261210 AMAQI
29th Jan 20261211 AMAQI
29th Jan 20262012 PMAQI
29th Jan 2026221 PMAQI
29th Jan 2026282 PMAQI
29th Jan 2026183 PMAQI
29th Jan 202694 PMAQI
29th Jan 2026145 PMAQI
29th Jan 2026146 PMAQI
29th Jan 2026177 PMAQI
29th Jan 2026218 PMAQI
29th Jan 2026179 PMAQI
29th Jan 20261710 PMAQI
29th Jan 20261211 PMAQI
30th Jan 20262312 AMAQI
30th Jan 2026251 AMAQI
30th Jan 2026232 AMAQI
30th Jan 2026193 AMAQI
30th Jan 2026174 AMAQI
30th Jan 2026195 AMAQI
30th Jan 2026176 AMAQI

7°C-1/17°C

30th Jan 2026177 AMAQI
30th Jan 2026258 AMAQI
30th Jan 2026259 AMAQI
30th Jan 20262510 AMAQI
30th Jan 20262711 AMAQI
30th Jan 20262512 PMAQI
30th Jan 2026251 PMAQI
30th Jan 2026142 PMAQI
30th Jan 2026173 PMAQI
30th Jan 2026144 PMAQI
30th Jan 2026175 PMAQI
30th Jan 2026196 PMAQI
30th Jan 2026177 PMAQI
30th Jan 2026198 PMAQI
30th Jan 2026219 PMAQI
30th Jan 20262510 PMAQI
30th Jan 20263311 PMAQI
31st Jan 20263312 AMAQI
31st Jan 2026331 AMAQI
31st Jan 2026312 AMAQI
31st Jan 2026273 AMAQI
31st Jan 2026234 AMAQI
31st Jan 2026195 AMAQI
31st Jan 2026196 AMAQI

6°C-2/15°C

31st Jan 2026177 AMAQI
31st Jan 2026218 AMAQI
31st Jan 2026279 AMAQI
31st Jan 20262710 AMAQI
31st Jan 20263311 AMAQI
31st Jan 20263312 PMAQI
31st Jan 2026331 PMAQI
31st Jan 2026332 PMAQI
31st Jan 2026253 PMAQI
31st Jan 2026214 PMAQI
31st Jan 2026175 PMAQI
31st Jan 2026197 PMAQI
31st Jan 2026258 PMAQI
31st Jan 2026299 PMAQI
31st Jan 20264010 PMAQI
31st Jan 20264011 PMAQI
1st Feb 20263312 AMAQI
1st Feb 2026271 AMAQI
1st Feb 2026312 AMAQI
1st Feb 2026333 AMAQI
1st Feb 2026294 AMAQI
1st Feb 2026215 AMAQI
1st Feb 2026236 AMAQI

6°C-2/15°C

1st Feb 2026177 AMAQI
1st Feb 2026198 AMAQI
1st Feb 2026219 AMAQI
1st Feb 20262110 AMAQI
1st Feb 20262111 AMAQI
1st Feb 20261712 PMAQI
1st Feb 2026331 PMAQI
1st Feb 2026252 PMAQI
1st Feb 2026173 PMAQI
1st Feb 2026174 PMAQI
1st Feb 2026175 PMAQI
1st Feb 2026176 PMAQI
1st Feb 2026177 PMAQI
1st Feb 2026218 PMAQI
1st Feb 2026219 PMAQI
1st Feb 20262910 PMAQI
1st Feb 20262711 PMAQI
2nd Feb 20263112 AMAQI
2nd Feb 2026271 AMAQI
2nd Feb 2026252 AMAQI
2nd Feb 2026273 AMAQI
2nd Feb 2026274 AMAQI
2nd Feb 2026125 AMAQI
2nd Feb 202686 AMAQI

7°C-1/18°C

2nd Feb 202687 AMAQI
2nd Feb 2026148 AMAQI
2nd Feb 2026149 AMAQI
2nd Feb 20261410 AMAQI
2nd Feb 20261611 AMAQI
2nd Feb 20264512 PMAQI
2nd Feb 2026621 PMAQI
2nd Feb 2026592 PMAQI
2nd Feb 2026593 PMAQI
2nd Feb 2026634 PMAQI
2nd Feb 2026625 PMAQI
2nd Feb 2026636 PMAQI
2nd Feb 2026637 PMAQI
2nd Feb 2026518 PMAQI
2nd Feb 2026609 PMAQI
2nd Feb 20266910 PMAQI
2nd Feb 20267311 PMAQI
3rd Feb 20266212 AMAQI
3rd Feb 2026591 AMAQI
3rd Feb 2026572 AMAQI
3rd Feb 2026593 AMAQI
3rd Feb 2026644 AMAQI
3rd Feb 2026705 AMAQI
3rd Feb 2026636 AMAQI

6°C-1/16°C

3rd Feb 2026677 AMAQI
3rd Feb 2026668 AMAQI
3rd Feb 2026649 AMAQI
3rd Feb 20266710 AMAQI
3rd Feb 20267011 AMAQI
3rd Feb 20267012 PMAQI
3rd Feb 2026761 PMAQI
3rd Feb 2026722 PMAQI
3rd Feb 2026624 PMAQI
3rd Feb 2026605 PMAQI
3rd Feb 2026626 PMAQI
3rd Feb 2026627 PMAQI
3rd Feb 2026628 PMAQI
3rd Feb 2026719 PMAQI
3rd Feb 20267010 PMAQI
3rd Feb 20267011 PMAQI
4th Feb 20267612 AMAQI
4th Feb 2026721 AMAQI
4th Feb 2026692 AMAQI
4th Feb 2026663 AMAQI
4th Feb 2026664 AMAQI
4th Feb 2026665 AMAQI
4th Feb 2026696 AMAQI

7°C-2/18°C

4th Feb 2026687 AMAQI
4th Feb 2026728 AMAQI
4th Feb 2026709 AMAQI
4th Feb 20267310 AMAQI
4th Feb 20267911 AMAQI
4th Feb 20267112 PMAQI
4th Feb 2026661 PMAQI
4th Feb 2026602 PMAQI
4th Feb 2026633 PMAQI
4th Feb 2026584 PMAQI
4th Feb 2026635 PMAQI
4th Feb 2026606 PMAQI
4th Feb 2026577 PMAQI
4th Feb 2026568 PMAQI
4th Feb 2026589 PMAQI
4th Feb 20266010 PMAQI
4th Feb 20266711 PMAQI
5th Feb 20266912 AMAQI
5th Feb 2026721 AMAQI
5th Feb 2026682 AMAQI
5th Feb 2026713 AMAQI
5th Feb 2026544 AMAQI
5th Feb 2026215 AMAQI
5th Feb 2026136 AMAQI

7°C-2/18°C

5th Feb 2026147 AMAQI
5th Feb 2026128 AMAQI
5th Feb 2026129 AMAQI
5th Feb 20261410 AMAQI
5th Feb 20261211 AMAQI
5th Feb 20261212 PMAQI
5th Feb 2026381 PMAQI
5th Feb 2026622 PMAQI
5th Feb 2026653 PMAQI
5th Feb 2026224 PMAQI
5th Feb 2026185 PMAQI
5th Feb 2026206 PMAQI
5th Feb 2026177 PMAQI
5th Feb 2026218 PMAQI
5th Feb 2026339 PMAQI
5th Feb 20262910 PMAQI
5th Feb 20262511 PMAQI
6th Feb 20261712 AMAQI
6th Feb 2026381 AMAQI
6th Feb 2026172 AMAQI
6th Feb 2026293 AMAQI
6th Feb 2026364 AMAQI
6th Feb 2026315 AMAQI
6th Feb 2026316 AMAQI

6°C-2/17°C

6th Feb 2026337 AMAQI
6th Feb 2026318 AMAQI
6th Feb 2026339 AMAQI
6th Feb 20264210 AMAQI
6th Feb 20261212 PMAQI
6th Feb 2026101 PMAQI
6th Feb 2026182 PMAQI
6th Feb 2026193 PMAQI
6th Feb 2026184 PMAQI
6th Feb 2026195 PMAQI
6th Feb 2026266 PMAQI
6th Feb 2026177 PMAQI
6th Feb 2026238 PMAQI
6th Feb 2026339 PMAQI
6th Feb 20262910 PMAQI
6th Feb 20264411 PMAQI
7th Feb 20263112 AMAQI
7th Feb 2026331 AMAQI
7th Feb 2026332 AMAQI
7th Feb 2026253 AMAQI
7th Feb 2026254 AMAQI
7th Feb 2026255 AMAQI
7th Feb 2026316 AMAQI

6°C-2/16°C

7th Feb 2026197 AMAQI
7th Feb 2026258 AMAQI
7th Feb 2026259 AMAQI
7th Feb 20262110 AMAQI
7th Feb 20261711 AMAQI
7th Feb 20263312 PMAQI
7th Feb 2026251 PMAQI
7th Feb 2026262 PMAQI
7th Feb 2026213 PMAQI
7th Feb 2026204 PMAQI
7th Feb 2026195 PMAQI
7th Feb 202686 PMAQI
7th Feb 202687 PMAQI
7th Feb 2026128 PMAQI
7th Feb 2026299 PMAQI
7th Feb 20262310 PMAQI
7th Feb 20262511 PMAQI
8th Feb 20262112 AMAQI
8th Feb 2026231 AMAQI
8th Feb 2026232 AMAQI
8th Feb 2026253 AMAQI
8th Feb 2026194 AMAQI
8th Feb 2026195 AMAQI

6°C-2/16°C

8th Feb 2026147 AMAQI
7 AM
8th Feb 2026148 AMAQI
8th Feb 2026179 AMAQI
8th Feb 20262110 AMAQI
8th Feb 20263111 AMAQI
8th Feb 20261712 PMAQI
12 PM
8th Feb 2026221 PMAQI
8th Feb 2026222 PMAQI
8th Feb 2026163 PMAQI
8th Feb 2026174 PMAQI
8th Feb 2026155 PMAQI
5 PM
8th Feb 2026166 PMAQI
8th Feb 2026147 PMAQI
8th Feb 2026128 PMAQI
8th Feb 2026179 PMAQI
8th Feb 20261710 PMAQI
8th Feb 20261411 PMAQI
12 AM
6 AM

6°C-2/16°C

Day time
Avg. Highest Time
1 PM

28AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
4 PM

22AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 1 PM (Avg. 28), while the lowest AQI was between 4 PM to 4 PM (Avg. 22).
Night time
Avg. Highest Time
11 PM

34AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
7 PM

22AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 34), while the lowest AQI was between 7 PM to 7 PM (Avg. 22).

2026 Days Vs Air Quality

City Center, Dayan, Yunnan, China

2026

95%

37

5%

2

Total number of days with different AQI categories in last 40 days in 2026 (325 days remaining)

Good
37 Days
Moderate
2 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 95%

Health Risk Level:

Very Low

In 2026, 95% of 40 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.

Annual Air Quality Insights

City Center, Dayan, Yunnan, 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
25AQI (US)
2nd January 2026
31AQI (US)
3rd January 2026
36AQI (US)
4th January 2026
39AQI (US)
5th January 2026
28AQI (US)
6th January 2026
25AQI (US)
7th January 2026
29AQI (US)
8th January 2026
24AQI (US)
9th January 2026
24AQI (US)
10th January 2026
23AQI (US)
11th January 2026
24AQI (US)
12th January 2026
27AQI (US)
13th January 2026
28AQI (US)
14th January 2026
22AQI (US)
15th January 2026
24AQI (US)
16th January 2026
19AQI (US)
17th January 2026
23AQI (US)
18th January 2026
24AQI (US)
19th January 2026
18AQI (US)
20th January 2026
17AQI (US)
21st January 2026
16AQI (US)
22nd January 2026
24AQI (US)
23rd January 2026
26AQI (US)
24th January 2026
23AQI (US)
25th January 2026
15AQI (US)
26th January 2026
28AQI (US)
27th January 2026
36AQI (US)
28th January 2026
20AQI (US)
29th January 2026
18AQI (US)
30th January 2026
21AQI (US)
31st January 2026
27AQI (US)
1st February 2026
23AQI (US)
2nd February 2026
40AQI (US)
3rd February 2026
65AQI (US)
4th February 2026
66AQI (US)
5th February 2026
33AQI (US)
6th February 2026
26AQI (US)
7th February 2026
23AQI (US)
8th February 2026
19AQI (US)
9th February 2026
10th February 2026
11th February 2026
12th February 2026
13th February 2026
14th February 2026
15th February 2026
16th February 2026
17th February 2026
18th February 2026
19th February 2026
20th February 2026
21st February 2026
22nd February 2026
23rd February 2026
24th February 2026
25th February 2026
26th February 2026
27th February 2026
28th February 2026
1st March 2026
2nd March 2026
3rd March 2026
4th March 2026
5th March 2026
6th March 2026
7th March 2026
8th March 2026
9th March 2026
10th March 2026
11th March 2026
12th March 2026
13th March 2026
14th March 2026
15th March 2026
16th March 2026
17th March 2026
18th March 2026
19th March 2026
20th March 2026
21st March 2026
22nd March 2026
23rd March 2026
24th March 2026
25th March 2026
26th March 2026
27th March 2026
28th March 2026
29th March 2026
30th March 2026
31st March 2026
1st April 2026
2nd April 2026
3rd April 2026
4th April 2026
5th April 2026
6th April 2026
7th April 2026
8th April 2026
9th April 2026
10th April 2026
11th April 2026
12th April 2026
13th April 2026
14th April 2026
15th April 2026
16th April 2026
17th April 2026
18th April 2026
19th April 2026
20th April 2026
21st April 2026
22nd April 2026
23rd April 2026
24th April 2026
25th April 2026
26th April 2026
27th April 2026
28th April 2026
29th April 2026
30th April 2026
1st May 2026
2nd May 2026
3rd May 2026
4th May 2026
5th May 2026
6th May 2026
7th May 2026
8th May 2026
9th May 2026
10th May 2026
11th May 2026
12th May 2026
13th May 2026
14th May 2026
15th May 2026
16th May 2026
17th May 2026
18th May 2026
19th May 2026
20th May 2026
21st May 2026
22nd May 2026
23rd May 2026
24th May 2026
25th May 2026
26th May 2026
27th May 2026
28th May 2026
29th May 2026
30th May 2026
31st May 2026
1st June 2026
2nd June 2026
3rd June 2026
4th June 2026
5th June 2026
6th June 2026
7th June 2026
8th June 2026
9th June 2026
10th June 2026
11th June 2026
12th June 2026
13th June 2026
14th June 2026
15th June 2026
16th June 2026
17th June 2026
18th June 2026
19th June 2026
20th June 2026
21st June 2026
22nd June 2026
23rd June 2026
24th June 2026
25th June 2026
26th June 2026
27th June 2026
28th June 2026
29th June 2026
30th June 2026
1st July 2026
2nd July 2026
3rd July 2026
4th July 2026
5th July 2026
6th July 2026
7th July 2026
8th July 2026
9th July 2026
10th July 2026
11th July 2026
12th July 2026
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

25AQI (US)

37AQI (US)

No. of days

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

202627AQI (US)

31
6
2
37
2

Highest AQI (US) recorded in

February

37AQI (US)

Lowest AQI (US) recorded in

January

25AQI (US)

202551AQI (US)

2
29
11
17
6
23
2
5
25
7
24
19
11
25
6
17
14
16
14
18
13
30
31
187
176
2

Highest AQI (US) recorded in

January

66AQI (US)

Lowest AQI (US) recorded in

December

34AQI (US)

202444AQI (US)

21
10
23
6
20
11
12
18
19
12
23
7
29
2
17
14
22
8
28
3
23
7
4
27
241
125

Highest AQI (US) recorded in

December

56AQI (US)

Lowest AQI (US) recorded in

July

36AQI (US)

202337AQI (US)

27
4
19
9
23
8
15
15
28
3
30
30
1
30
1
27
3
31
26
30
1
316
45

Highest AQI (US) recorded in

April

54AQI (US)

Lowest AQI (US) recorded in

December

27AQI (US)

202243AQI (US)

31
16
5
2
23
6
11
19
21
10
27
3
20
4
1
26
2
30
30
30
1
244
68
6

Highest AQI (US) recorded in

March

76AQI (US)

Lowest AQI (US) recorded in

January

32AQI (US)

202139AQI (US)

19
12
25
3
10
20
1
6
24
27
4
30
31
29
2
30
31
29
1
24
7
291
73
1

Highest AQI (US) recorded in

April

59AQI (US)

Lowest AQI (US) recorded in

August

29AQI (US)

202044AQI (US)

2
11
4
15
2
16
2
30
28
3
28
3
25
5
22
8
14
15
1
22
9
191
71
2
1

Highest AQI (US) recorded in

April

67AQI (US)

Lowest AQI (US) recorded in

June

31AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
51AQI (US)
Least Polluted Year Recorded
2026(Avg.)
27AQI (US)

City Center's annual 2026 AQI (US) (27) shows an average percentage change of -36.3% (improved AQI (US)) compared to previous years: 2020 (44), 2021 (39), 2022 (43), 2023 (37), 2024 (44), 2025 (51).