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+
August Air Quality Analysis
City Center, Dayan, Yunnan, China
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2022
70AQILowest AQI recorded on
9th Aug 2026
12AQISame Day Analysis (16th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 17 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
City Center, Dayan, Yunnan, China
AQI
Day
Night
.
6 AM15th Aug 2026
8 PM
5 AM16th Aug 2026
Day time
Avg. Highest Time
8AM15th Aug
28AQI
Avg. Lowest Time
5PM15th Aug
10AQI
Night time
Avg. Highest Time
2AM16th Aug
25AQI
Avg. Lowest Time
9PM15th Aug
10AQI
In the last 24 hours,
City Center's AQI reached its highest point of 28 at 8 AM during the Day, while the lowest point, 10, was recorded at 9 PM during the Night between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
City Center, Dayan, Yunnan, China
JulAug
18th - 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 - 14th14th - 15th15th - 16th16th
Day
Night
18th Jul 2026316 AMAQI
18th Jul 2026167 AMAQI
18th Jul 2026278 AMAQI
18th Jul 2026349 AMAQI
18th Jul 20263110 AMAQI
18th Jul 20263311 AMAQI
18th Jul 20263312 PMAQI
18th Jul 2026311 PMAQI
18th Jul 2026312 PMAQI
18th Jul 2026313 PMAQI
18th Jul 2026214 PMAQI
18th Jul 2026215 PMAQI
18th Jul 2026316 PMAQI
18th Jul 2026297 PMAQI
18th Jul 2026258 PMAQI
18th Jul 2026299 PMAQI
18th Jul 20262910 PMAQI
18th Jul 2026811 PMAQI
19th Jul 20262812 AMAQI
19th Jul 2026331 AMAQI
19th Jul 2026292 AMAQI
19th Jul 2026333 AMAQI
19th Jul 2026334 AMAQI
19th Jul 2026315 AMAQI
17°C15/21°C
19th Jul 2026326 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026218 AMAQI
19th Jul 2026219 AMAQI
19th Jul 20262310 AMAQI
19th Jul 20262511 AMAQI
19th Jul 20262112 PMAQI
19th Jul 2026211 PMAQI
19th Jul 2026212 PMAQI
19th Jul 2026213 PMAQI
19th Jul 2026104 PMAQI
19th Jul 2026125 PMAQI
19th Jul 2026126 PMAQI
19th Jul 2026217 PMAQI
19th Jul 2026218 PMAQI
19th Jul 2026219 PMAQI
19th Jul 20261410 PMAQI
19th Jul 2026811 PMAQI
20th Jul 2026812 AMAQI
20th Jul 2026141 AMAQI
20th Jul 2026142 AMAQI
20th Jul 2026143 AMAQI
20th Jul 2026144 AMAQI
20th Jul 202685 AMAQI
15°C13/20°C
20th Jul 2026146 AMAQI
20th Jul 2026197 AMAQI
20th Jul 2026218 AMAQI
20th Jul 2026149 AMAQI
20th Jul 20261010 AMAQI
20th Jul 20261211 AMAQI
20th Jul 20261212 PMAQI
20th Jul 2026121 PMAQI
20th Jul 2026102 PMAQI
20th Jul 202683 PMAQI
20th Jul 2026144 PMAQI
20th Jul 2026215 PMAQI
20th Jul 2026146 PMAQI
20th Jul 2026217 PMAQI
20th Jul 202688 PMAQI
20th Jul 202689 PMAQI
20th Jul 20261210 PMAQI
20th Jul 20261211 PMAQI
21st Jul 20261212 AMAQI
21st Jul 2026101 AMAQI
21st Jul 202682 AMAQI
21st Jul 202683 AMAQI
21st Jul 2026104 AMAQI
21st Jul 202685 AMAQI
18°C12/25°C
21st Jul 2026216 AMAQI
21st Jul 2026217 AMAQI
21st Jul 2026148 AMAQI
21st Jul 2026149 AMAQI
21st Jul 20261210 AMAQI
21st Jul 20262112 PMAQI
21st Jul 2026211 PMAQI
21st Jul 2026212 PMAQI
21st Jul 2026213 PMAQI
21st Jul 2026214 PMAQI
21st Jul 2026215 PMAQI
21st Jul 2026436 PMAQI
21st Jul 2026237 PMAQI
21st Jul 2026218 PMAQI
21st Jul 202689 PMAQI
21st Jul 2026810 PMAQI
21st Jul 20261011 PMAQI
22nd Jul 20262112 AMAQI
22nd Jul 2026141 AMAQI
22nd Jul 2026212 AMAQI
22nd Jul 2026213 AMAQI
22nd Jul 2026214 AMAQI
22nd Jul 2026125 AMAQI
18°C13/24°C
22nd Jul 2026216 AMAQI
22nd Jul 2026147 AMAQI
22nd Jul 2026218 AMAQI
22nd Jul 2026219 AMAQI
22nd Jul 20262210 AMAQI
22nd Jul 20261211 AMAQI
22nd Jul 2026812 PMAQI
22nd Jul 202681 PMAQI
22nd Jul 202682 PMAQI
22nd Jul 2026213 PMAQI
22nd Jul 2026214 PMAQI
22nd Jul 2026215 PMAQI
22nd Jul 2026146 PMAQI
22nd Jul 2026147 PMAQI
22nd Jul 2026128 PMAQI
22nd Jul 2026109 PMAQI
22nd Jul 20261010 PMAQI
22nd Jul 20261411 PMAQI
23rd Jul 20261712 AMAQI
23rd Jul 2026171 AMAQI
23rd Jul 2026272 AMAQI
23rd Jul 2026273 AMAQI
23rd Jul 2026194 AMAQI
23rd Jul 2026125 AMAQI
18°C14/23°C
23rd Jul 2026166 AMAQI
23rd Jul 2026147 AMAQI
23rd Jul 202688 AMAQI
23rd Jul 2026129 AMAQI
23rd Jul 20261410 AMAQI
23rd Jul 20261211 AMAQI
23rd Jul 20261212 PMAQI
23rd Jul 202681 PMAQI
23rd Jul 2026252 PMAQI
23rd Jul 2026193 PMAQI
23rd Jul 2026234 PMAQI
23rd Jul 2026235 PMAQI
23rd Jul 2026126 PMAQI
23rd Jul 2026197 PMAQI
23rd Jul 2026648 PMAQI
23rd Jul 2026649 PMAQI
23rd Jul 20266410 PMAQI
23rd Jul 20265611 PMAQI
24th Jul 20265812 AMAQI
24th Jul 2026401 AMAQI
24th Jul 2026142 AMAQI
24th Jul 2026143 AMAQI
24th Jul 2026144 AMAQI
24th Jul 2026145 AMAQI
18°C13/24°C
24th Jul 2026156 AMAQI
24th Jul 2026107 AMAQI
24th Jul 202688 AMAQI
24th Jul 2026209 AMAQI
24th Jul 20264810 AMAQI
24th Jul 20263611 AMAQI
24th Jul 20261112 PMAQI
24th Jul 2026231 PMAQI
24th Jul 2026142 PMAQI
24th Jul 2026233 PMAQI
24th Jul 2026254 PMAQI
24th Jul 2026205 PMAQI
24th Jul 2026106 PMAQI
24th Jul 202697 PMAQI
24th Jul 2026168 PMAQI
24th Jul 2026279 PMAQI
24th Jul 20262710 PMAQI
24th Jul 20262511 PMAQI
25th Jul 20264412 AMAQI
25th Jul 2026441 AMAQI
25th Jul 2026462 AMAQI
25th Jul 2026233 AMAQI
25th Jul 2026104 AMAQI
25th Jul 2026165 AMAQI
17°C14/23°C
25th Jul 2026346 AMAQI
25th Jul 2026367 AMAQI
25th Jul 2026278 AMAQI
25th Jul 2026389 AMAQI
25th Jul 20262910 AMAQI
25th Jul 20261411 AMAQI
25th Jul 20262712 PMAQI
25th Jul 2026201 PMAQI
25th Jul 2026362 PMAQI
25th Jul 2026283 PMAQI
25th Jul 2026254 PMAQI
25th Jul 2026235 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026207 PMAQI
25th Jul 2026308 PMAQI
25th Jul 2026549 PMAQI
25th Jul 20265210 PMAQI
25th Jul 20261711 PMAQI
26th Jul 20261212 AMAQI
26th Jul 2026171 AMAQI
26th Jul 2026142 AMAQI
26th Jul 2026173 AMAQI
26th Jul 2026174 AMAQI
26th Jul 2026145 AMAQI
18°C12/25°C
26th Jul 2026126 AMAQI
26th Jul 2026177 AMAQI
26th Jul 2026128 AMAQI
26th Jul 2026149 AMAQI
26th Jul 20261710 AMAQI
26th Jul 20261711 AMAQI
26th Jul 20261712 PMAQI
26th Jul 2026171 PMAQI
26th Jul 2026142 PMAQI
26th Jul 2026143 PMAQI
26th Jul 2026124 PMAQI
26th Jul 2026145 PMAQI
26th Jul 2026146 PMAQI
26th Jul 2026127 PMAQI
26th Jul 2026178 PMAQI
26th Jul 2026199 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20261911 PMAQI
27th Jul 20261712 AMAQI
27th Jul 2026171 AMAQI
27th Jul 2026122 AMAQI
27th Jul 2026123 AMAQI
27th Jul 2026124 AMAQI
27th Jul 2026125 AMAQI
18°C12/25°C
27th Jul 2026126 AMAQI
27th Jul 2026127 AMAQI
27th Jul 2026148 AMAQI
27th Jul 2026129 AMAQI
27th Jul 20261010 AMAQI
27th Jul 2026811 AMAQI
27th Jul 2026812 PMAQI
27th Jul 202681 PMAQI
27th Jul 2026102 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026144 PMAQI
27th Jul 2026215 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026217 PMAQI
27th Jul 2026128 PMAQI
27th Jul 2026129 PMAQI
27th Jul 20261210 PMAQI
27th Jul 20261211 PMAQI
28th Jul 20261012 AMAQI
28th Jul 2026101 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026213 AMAQI
28th Jul 2026214 AMAQI
28th Jul 2026145 AMAQI
15°C14/17°C
28th Jul 2026216 AMAQI
28th Jul 202687 AMAQI
28th Jul 2026128 AMAQI
28th Jul 2026199 AMAQI
28th Jul 20263610 AMAQI
28th Jul 20265911 AMAQI
28th Jul 20262712 PMAQI
28th Jul 2026151 PMAQI
28th Jul 2026212 PMAQI
28th Jul 2026213 PMAQI
28th Jul 202684 PMAQI
28th Jul 2026215 PMAQI
28th Jul 2026216 PMAQI
28th Jul 2026177 PMAQI
28th Jul 2026138 PMAQI
28th Jul 2026109 PMAQI
28th Jul 20262110 PMAQI
28th Jul 20262111 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026161 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026213 AMAQI
29th Jul 2026214 AMAQI
29th Jul 2026385 AMAQI
15°C13/21°C
29th Jul 2026316 AMAQI
29th Jul 2026367 AMAQI
29th Jul 2026338 AMAQI
29th Jul 2026259 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20263311 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026341 PMAQI
29th Jul 2026402 PMAQI
29th Jul 2026363 PMAQI
29th Jul 2026324 PMAQI
29th Jul 2026295 PMAQI
29th Jul 2026366 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026389 PMAQI
29th Jul 20261610 PMAQI
29th Jul 20262311 PMAQI
30th Jul 20262112 AMAQI
30th Jul 2026231 AMAQI
30th Jul 2026232 AMAQI
30th Jul 2026213 AMAQI
30th Jul 2026254 AMAQI
30th Jul 2026275 AMAQI
16°C14/20°C
30th Jul 2026296 AMAQI
30th Jul 2026337 AMAQI
30th Jul 2026318 AMAQI
30th Jul 2026319 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262112 PMAQI
30th Jul 202681 PMAQI
30th Jul 2026162 PMAQI
30th Jul 2026253 PMAQI
30th Jul 2026144 PMAQI
30th Jul 2026145 PMAQI
30th Jul 2026146 PMAQI
30th Jul 2026147 PMAQI
30th Jul 2026108 PMAQI
30th Jul 2026129 PMAQI
30th Jul 20261010 PMAQI
30th Jul 20261811 PMAQI
31st Jul 20261212 AMAQI
31st Jul 2026121 AMAQI
31st Jul 2026122 AMAQI
31st Jul 2026123 AMAQI
31st Jul 2026104 AMAQI
31st Jul 2026185 AMAQI
15°C14/18°C
31st Jul 2026146 AMAQI
31st Jul 202687 AMAQI
31st Jul 2026188 AMAQI
31st Jul 202689 AMAQI
31st Jul 20262310 AMAQI
31st Jul 20261411 AMAQI
31st Jul 2026812 PMAQI
31st Jul 202681 PMAQI
31st Jul 2026102 PMAQI
31st Jul 202683 PMAQI
31st Jul 2026214 PMAQI
31st Jul 2026195 PMAQI
31st Jul 2026166 PMAQI
31st Jul 2026177 PMAQI
31st Jul 2026168 PMAQI
31st Jul 2026169 PMAQI
31st Jul 20261410 PMAQI
31st Jul 20261011 PMAQI
1st Aug 20261012 AMAQI
1st Aug 2026101 AMAQI
1st Aug 2026122 AMAQI
1st Aug 202683 AMAQI
1st Aug 2026214 AMAQI
1st Aug 2026215 AMAQI
16°C13/20°C
1st Aug 2026216 AMAQI
1st Aug 2026147 AMAQI
1st Aug 202688 AMAQI
1st Aug 2026109 AMAQI
1st Aug 20261010 AMAQI
1st Aug 20261011 AMAQI
1st Aug 20261412 PMAQI
1st Aug 2026121 PMAQI
1st Aug 2026142 PMAQI
1st Aug 2026123 PMAQI
1st Aug 2026124 PMAQI
1st Aug 2026125 PMAQI
1st Aug 2026106 PMAQI
1st Aug 202687 PMAQI
1st Aug 2026218 PMAQI
1st Aug 2026149 PMAQI
1st Aug 20261410 PMAQI
1st Aug 20261411 PMAQI
2nd Aug 20262112 AMAQI
2nd Aug 2026141 AMAQI
2nd Aug 2026142 AMAQI
2nd Aug 2026213 AMAQI
2nd Aug 2026214 AMAQI
2nd Aug 2026145 AMAQI
17°C14/21°C
2nd Aug 2026216 AMAQI
2nd Aug 2026217 AMAQI
2nd Aug 2026218 AMAQI
2nd Aug 202689 AMAQI
2nd Aug 2026810 AMAQI
2nd Aug 2026811 AMAQI
2nd Aug 20261412 PMAQI
2nd Aug 202681 PMAQI
2nd Aug 202682 PMAQI
2nd Aug 2026103 PMAQI
2nd Aug 2026144 PMAQI
2nd Aug 2026145 PMAQI
2nd Aug 2026256 PMAQI
2nd Aug 2026217 PMAQI
2nd Aug 2026148 PMAQI
2nd Aug 2026149 PMAQI
2nd Aug 20262110 PMAQI
2nd Aug 20262111 PMAQI
3rd Aug 20261412 AMAQI
3rd Aug 202681 AMAQI
3rd Aug 2026212 AMAQI
3rd Aug 2026213 AMAQI
3rd Aug 2026144 AMAQI
3rd Aug 2026195 AMAQI
16°C14/20°C
3rd Aug 2026146 AMAQI
3rd Aug 2026257 AMAQI
3rd Aug 2026368 AMAQI
3rd Aug 2026339 AMAQI
3rd Aug 20262210 AMAQI
3rd Aug 20263111 AMAQI
3rd Aug 20262512 PMAQI
3rd Aug 2026291 PMAQI
3rd Aug 2026202 PMAQI
3rd Aug 2026283 PMAQI
3rd Aug 2026284 PMAQI
3rd Aug 2026345 PMAQI
3rd Aug 2026236 PMAQI
3rd Aug 2026307 PMAQI
3rd Aug 2026258 PMAQI
3rd Aug 2026319 PMAQI
3rd Aug 20262710 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20262112 AMAQI
4th Aug 2026211 AMAQI
4th Aug 2026212 AMAQI
4th Aug 2026233 AMAQI
4th Aug 2026254 AMAQI
4th Aug 2026385 AMAQI
16°C14/21°C
4th Aug 2026336 AMAQI
4th Aug 2026337 AMAQI
4th Aug 2026368 AMAQI
4th Aug 2026329 AMAQI
4th Aug 20261210 AMAQI
4th Aug 2026811 AMAQI
4th Aug 20261412 PMAQI
4th Aug 2026141 PMAQI
4th Aug 202682 PMAQI
4th Aug 2026103 PMAQI
4th Aug 202684 PMAQI
4th Aug 2026215 PMAQI
4th Aug 2026196 PMAQI
4th Aug 2026147 PMAQI
4th Aug 2026148 PMAQI
4th Aug 2026149 PMAQI
4th Aug 20261210 PMAQI
4th Aug 20261011 PMAQI
5th Aug 20261412 AMAQI
5th Aug 2026141 AMAQI
5th Aug 2026122 AMAQI
5th Aug 2026213 AMAQI
5th Aug 2026194 AMAQI
5th Aug 2026215 AMAQI
13°C12/15°C
5th Aug 2026216 AMAQI
5th Aug 202687 AMAQI
5th Aug 2026148 AMAQI
5th Aug 202689 AMAQI
5th Aug 20261010 AMAQI
5th Aug 20262011 AMAQI
5th Aug 20261012 PMAQI
5th Aug 2026291 PMAQI
5th Aug 2026102 PMAQI
5th Aug 202683 PMAQI
5th Aug 2026124 PMAQI
5th Aug 2026125 PMAQI
5th Aug 2026126 PMAQI
5th Aug 202687 PMAQI
5th Aug 2026108 PMAQI
5th Aug 2026149 PMAQI
5th Aug 20261710 PMAQI
5th Aug 20261711 PMAQI
6th Aug 20261712 AMAQI
6th Aug 2026171 AMAQI
6th Aug 2026172 AMAQI
6th Aug 2026193 AMAQI
6th Aug 2026194 AMAQI
6th Aug 2026295 AMAQI
16°C13/20°C
6th Aug 2026466 AMAQI
6th Aug 2026217 AMAQI
6th Aug 2026148 AMAQI
6th Aug 2026149 AMAQI
6th Aug 20261710 AMAQI
6th Aug 20266411 AMAQI
6th Aug 20265912 PMAQI
6th Aug 2026381 PMAQI
6th Aug 2026152 PMAQI
6th Aug 2026123 PMAQI
6th Aug 2026104 PMAQI
6th Aug 2026125 PMAQI
6th Aug 2026146 PMAQI
6th Aug 2026197 PMAQI
6th Aug 2026168 PMAQI
6th Aug 2026129 PMAQI
6th Aug 20265510 PMAQI
6th Aug 20265611 PMAQI
7th Aug 20266412 AMAQI
7th Aug 2026461 AMAQI
7th Aug 2026422 AMAQI
7th Aug 2026503 AMAQI
7th Aug 2026404 AMAQI
7th Aug 2026315 AMAQI
16°C12/23°C
7th Aug 2026336 AMAQI
7th Aug 2026387 AMAQI
7th Aug 2026338 AMAQI
7th Aug 2026389 AMAQI
7th Aug 20263610 AMAQI
7th Aug 20262811 AMAQI
7th Aug 20262312 PMAQI
7th Aug 2026161 PMAQI
7th Aug 2026212 PMAQI
7th Aug 2026213 PMAQI
7th Aug 2026214 PMAQI
7th Aug 2026125 PMAQI
7th Aug 2026176 PMAQI
7th Aug 2026147 PMAQI
7th Aug 2026128 PMAQI
7th Aug 2026129 PMAQI
7th Aug 20261710 PMAQI
7th Aug 20263311 PMAQI
8th Aug 20263312 AMAQI
8th Aug 2026581 AMAQI
8th Aug 2026542 AMAQI
8th Aug 2026193 AMAQI
8th Aug 2026254 AMAQI
8th Aug 2026295 AMAQI
15°C13/20°C
8th Aug 2026236 AMAQI
8th Aug 2026237 AMAQI
8th Aug 2026178 AMAQI
8th Aug 2026179 AMAQI
8th Aug 20261410 AMAQI
8th Aug 20261911 AMAQI
8th Aug 20261912 PMAQI
8th Aug 2026171 PMAQI
8th Aug 2026122 PMAQI
8th Aug 2026233 PMAQI
8th Aug 2026214 PMAQI
8th Aug 2026195 PMAQI
8th Aug 202686 PMAQI
8th Aug 2026147 PMAQI
8th Aug 2026218 PMAQI
8th Aug 202689 PMAQI
8th Aug 20261210 PMAQI
8th Aug 20262111 PMAQI
9th Aug 20262112 AMAQI
9th Aug 2026141 AMAQI
9th Aug 2026122 AMAQI
9th Aug 2026123 AMAQI
9th Aug 2026124 AMAQI
9th Aug 2026125 AMAQI
14°C13/15°C
9th Aug 2026126 AMAQI
9th Aug 2026107 AMAQI
9th Aug 2026108 AMAQI
9th Aug 2026109 AMAQI
9th Aug 20261010 AMAQI
9th Aug 20261411 AMAQI
9th Aug 2026812 PMAQI
9th Aug 2026121 PMAQI
9th Aug 202682 PMAQI
9th Aug 2026213 PMAQI
9th Aug 2026144 PMAQI
9th Aug 2026215 PMAQI
9th Aug 202686 PMAQI
9th Aug 202687 PMAQI
9th Aug 2026108 PMAQI
9th Aug 202689 PMAQI
9th Aug 20261210 PMAQI
9th Aug 20261211 PMAQI
10th Aug 20261012 AMAQI
10th Aug 2026101 AMAQI
10th Aug 202682 AMAQI
10th Aug 202683 AMAQI
10th Aug 202684 AMAQI
10th Aug 2026145 AMAQI
16°C12/23°C
10th Aug 2026216 AMAQI
10th Aug 2026217 AMAQI
10th Aug 2026148 AMAQI
10th Aug 2026149 AMAQI
10th Aug 20261410 AMAQI
10th Aug 20261411 AMAQI
10th Aug 20262112 PMAQI
10th Aug 2026211 PMAQI
10th Aug 2026212 PMAQI
10th Aug 2026213 PMAQI
10th Aug 2026124 PMAQI
10th Aug 2026195 PMAQI
10th Aug 2026146 PMAQI
10th Aug 2026217 PMAQI
10th Aug 202688 PMAQI
10th Aug 202689 PMAQI
10th Aug 20262110 PMAQI
10th Aug 20261411 PMAQI
11th Aug 2026812 AMAQI
11th Aug 2026121 AMAQI
11th Aug 2026142 AMAQI
11th Aug 2026143 AMAQI
11th Aug 2026214 AMAQI
11th Aug 2026215 AMAQI
18°C14/25°C
11th Aug 2026126 AMAQI
11th Aug 2026217 AMAQI
11th Aug 2026218 AMAQI
11th Aug 2026149 AMAQI
11th Aug 20261410 AMAQI
11th Aug 20261211 AMAQI
11th Aug 20262112 PMAQI
11th Aug 2026141 PMAQI
11th Aug 2026142 PMAQI
11th Aug 202683 PMAQI
11th Aug 2026194 PMAQI
11th Aug 2026215 PMAQI
11th Aug 2026216 PMAQI
11th Aug 2026217 PMAQI
11th Aug 202688 PMAQI
11th Aug 2026149 PMAQI
11th Aug 20262110 PMAQI
11th Aug 20261411 PMAQI
12th Aug 2026812 AMAQI
12th Aug 2026101 AMAQI
12th Aug 202682 AMAQI
12th Aug 2026143 AMAQI
12th Aug 2026214 AMAQI
12th Aug 2026215 AMAQI
19°C13/27°C
12th Aug 2026216 AMAQI
12th Aug 2026257 AMAQI
12th Aug 2026258 AMAQI
12th Aug 202689 AMAQI
12th Aug 2026810 AMAQI
12th Aug 20261411 AMAQI
12th Aug 2026812 PMAQI
12th Aug 2026141 PMAQI
12th Aug 2026122 PMAQI
12th Aug 2026193 PMAQI
12th Aug 2026164 PMAQI
12th Aug 2026165 PMAQI
12th Aug 2026196 PMAQI
12th Aug 2026217 PMAQI
12th Aug 2026128 PMAQI
12th Aug 2026219 PMAQI
12th Aug 20261210 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20261212 AMAQI
13th Aug 2026271 AMAQI
13th Aug 2026232 AMAQI
13th Aug 2026173 AMAQI
13th Aug 2026124 AMAQI
13th Aug 2026125 AMAQI
18°C14/25°C
13th Aug 202686 AMAQI
13th Aug 2026217 AMAQI
13th Aug 2026148 AMAQI
13th Aug 2026199 AMAQI
13th Aug 20261210 AMAQI
13th Aug 20262111 AMAQI
13th Aug 20261612 PMAQI
13th Aug 2026301 PMAQI
13th Aug 2026172 PMAQI
13th Aug 2026103 PMAQI
13th Aug 2026204 PMAQI
13th Aug 2026385 PMAQI
13th Aug 2026166 PMAQI
13th Aug 2026217 PMAQI
13th Aug 2026178 PMAQI
13th Aug 2026259 PMAQI
13th Aug 20262510 PMAQI
13th Aug 20261711 PMAQI
14th Aug 20261012 AMAQI
14th Aug 2026101 AMAQI
14th Aug 2026142 AMAQI
14th Aug 2026173 AMAQI
14th Aug 2026104 AMAQI
14th Aug 2026145 AMAQI
17°C14/23°C
14th Aug 2026196 AMAQI
14th Aug 2026127 AMAQI
14th Aug 2026128 AMAQI
14th Aug 2026179 AMAQI
14th Aug 20262710 AMAQI
14th Aug 20262311 AMAQI
14th Aug 20261712 PMAQI
14th Aug 2026141 PMAQI
14th Aug 2026172 PMAQI
14th Aug 2026143 PMAQI
14th Aug 2026214 PMAQI
14th Aug 2026125 PMAQI
14th Aug 202686 PMAQI
14th Aug 2026107 PMAQI
14th Aug 2026178 PMAQI
14th Aug 2026149 PMAQI
14th Aug 2026810 PMAQI
14th Aug 20261211 PMAQI
15th Aug 20261212 AMAQI
15th Aug 2026121 AMAQI
15th Aug 202682 AMAQI
15th Aug 202683 AMAQI
15th Aug 202684 AMAQI
15th Aug 2026145 AMAQI
17°C12/24°C
15th Aug 2026216 AMAQI
15th Aug 2026127 AMAQI
15th Aug 2026288 AMAQI
15th Aug 2026179 AMAQI
15th Aug 20261010 AMAQI
15th Aug 20261911 AMAQI
15th Aug 20262312 PMAQI
15th Aug 2026211 PMAQI
15th Aug 2026212 PMAQI
15th Aug 2026213 PMAQI
15th Aug 2026124 PMAQI
15th Aug 2026105 PMAQI
15th Aug 2026126 PMAQI
15th Aug 2026127 PMAQI
15th Aug 2026108 PMAQI
15th Aug 2026109 PMAQI
15th Aug 20261210 PMAQI
15th Aug 20261411 PMAQI
16th Aug 20261412 AMAQI
16th Aug 2026141 AMAQI
16th Aug 2026252 AMAQI
16th Aug 2026143 AMAQI
16th Aug 2026214 AMAQI
16th Aug 2026145 AMAQI
17°C12/23°C
16th Aug 2026106 AMAQI
6 AM16th Aug 2026257 AMAQI
16th Aug 2026198 AMAQI
16th Aug 202689 AMAQI
16th Aug 20262510 AMAQI
16th Aug 20261911 AMAQI
16th Aug 20261212 PMAQI
16th Aug 2026121 PMAQI
1 PM16th Aug 2026212 PMAQI
16th Aug 2026253 PMAQI
16th Aug 2026174 PMAQI
16th Aug 2026215 PMAQI
16th Aug 202686 PMAQI
16th Aug 2026177 PMAQI
16th Aug 2026128 PMAQI
8 PM16th Aug 2026129 PMAQI
16th Aug 20262710 PMAQI
16th Aug 20262511 PMAQI
1 AM
5 AM
16°C14/20°C
Day time
Avg. Highest Time
6 AM
21AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
2 PM
17AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 AM (Avg. 21), while the lowest AQI was between 2 PM to 2 PM (Avg. 17).
Night time
Avg. Highest Time
10 PM
21AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM - 4 AM
18AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 10 PM (Avg. 21), while the lowest AQI was between 3 AM to 4 AM (Avg. 18).
2026 Days Vs Air Quality
City Center, Dayan, Yunnan, China
2026
95%
216
5%
12
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Good
216 DaysModerate
12 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 228 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)
25AQI (US)
2nd January 2026
31AQI (US)
31AQI (US)
3rd January 2026
36AQI (US)
36AQI (US)
4th January 2026
39AQI (US)
39AQI (US)
5th January 2026
28AQI (US)
28AQI (US)
6th January 2026
25AQI (US)
25AQI (US)
7th January 2026
29AQI (US)
29AQI (US)
8th January 2026
24AQI (US)
24AQI (US)
9th January 2026
24AQI (US)
24AQI (US)
10th January 2026
23AQI (US)
23AQI (US)
11th January 2026
24AQI (US)
24AQI (US)
12th January 2026
27AQI (US)
27AQI (US)
13th January 2026
28AQI (US)
28AQI (US)
14th January 2026
22AQI (US)
22AQI (US)
15th January 2026
24AQI (US)
24AQI (US)
16th January 2026
19AQI (US)
19AQI (US)
17th January 2026
23AQI (US)
23AQI (US)
18th January 2026
24AQI (US)
24AQI (US)
19th January 2026
18AQI (US)
18AQI (US)
20th January 2026
17AQI (US)
17AQI (US)
21st January 2026
16AQI (US)
16AQI (US)
22nd January 2026
24AQI (US)
24AQI (US)
23rd January 2026
26AQI (US)
26AQI (US)
24th January 2026
23AQI (US)
23AQI (US)
25th January 2026
15AQI (US)
15AQI (US)
26th January 2026
28AQI (US)
28AQI (US)
27th January 2026
36AQI (US)
36AQI (US)
28th January 2026
19AQI (US)
19AQI (US)
29th January 2026
18AQI (US)
18AQI (US)
30th January 2026
21AQI (US)
21AQI (US)
31st January 2026
27AQI (US)
27AQI (US)
1st February 2026
23AQI (US)
23AQI (US)
2nd February 2026
40AQI (US)
40AQI (US)
3rd February 2026
65AQI (US)
65AQI (US)
4th February 2026
66AQI (US)
66AQI (US)
5th February 2026
33AQI (US)
33AQI (US)
6th February 2026
26AQI (US)
26AQI (US)
7th February 2026
23AQI (US)
23AQI (US)
8th February 2026
18AQI (US)
18AQI (US)
9th February 2026
17AQI (US)
17AQI (US)
10th February 2026
27AQI (US)
27AQI (US)
11th February 2026
28AQI (US)
28AQI (US)
12th February 2026
20AQI (US)
20AQI (US)
13th February 2026
20AQI (US)
20AQI (US)
14th February 2026
18AQI (US)
18AQI (US)
15th February 2026
26AQI (US)
26AQI (US)
16th February 2026
28AQI (US)
28AQI (US)
17th February 2026
35AQI (US)
35AQI (US)
18th February 2026
30AQI (US)
30AQI (US)
19th February 2026
41AQI (US)
41AQI (US)
20th February 2026
34AQI (US)
34AQI (US)
21st February 2026
23AQI (US)
23AQI (US)
22nd February 2026
45AQI (US)
45AQI (US)
23rd February 2026
26AQI (US)
26AQI (US)
24th February 2026
28AQI (US)
28AQI (US)
25th February 2026
30AQI (US)
30AQI (US)
26th February 2026
30AQI (US)
30AQI (US)
27th February 2026
38AQI (US)
38AQI (US)
28th February 2026
40AQI (US)
40AQI (US)
1st March 2026
36AQI (US)
36AQI (US)
2nd March 2026
33AQI (US)
33AQI (US)
3rd March 2026
30AQI (US)
30AQI (US)
4th March 2026
25AQI (US)
25AQI (US)
5th March 2026
28AQI (US)
28AQI (US)
6th March 2026
57AQI (US)
57AQI (US)
7th March 2026
53AQI (US)
53AQI (US)
8th March 2026
46AQI (US)
46AQI (US)
9th March 2026
47AQI (US)
47AQI (US)
10th March 2026
25AQI (US)
25AQI (US)
11th March 2026
33AQI (US)
33AQI (US)
12th March 2026
54AQI (US)
54AQI (US)
13th March 2026
50AQI (US)
50AQI (US)
14th March 2026
20AQI (US)
20AQI (US)
15th March 2026
18AQI (US)
18AQI (US)
16th March 2026
27AQI (US)
27AQI (US)
17th March 2026
28AQI (US)
28AQI (US)
18th March 2026
23AQI (US)
23AQI (US)
19th March 2026
25AQI (US)
25AQI (US)
20th March 2026
26AQI (US)
26AQI (US)
21st March 2026
26AQI (US)
26AQI (US)
22nd March 2026
34AQI (US)
34AQI (US)
23rd March 2026
18AQI (US)
18AQI (US)
24th March 2026
16AQI (US)
16AQI (US)
25th March 2026
23AQI (US)
23AQI (US)
26th March 2026
23AQI (US)
23AQI (US)
27th March 2026
31AQI (US)
31AQI (US)
28th March 2026
39AQI (US)
39AQI (US)
29th March 2026
20AQI (US)
20AQI (US)
30th March 2026
14AQI (US)
14AQI (US)
31st March 2026
21AQI (US)
21AQI (US)
1st April 2026
20AQI (US)
20AQI (US)
2nd April 2026
21AQI (US)
21AQI (US)
3rd April 2026
19AQI (US)
19AQI (US)
4th April 2026
21AQI (US)
21AQI (US)
5th April 2026
32AQI (US)
32AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
25AQI (US)
25AQI (US)
8th April 2026
20AQI (US)
20AQI (US)
9th April 2026
15AQI (US)
15AQI (US)
10th April 2026
18AQI (US)
18AQI (US)
11th April 2026
15AQI (US)
15AQI (US)
12th April 2026
26AQI (US)
26AQI (US)
13th April 2026
39AQI (US)
39AQI (US)
14th April 2026
24AQI (US)
24AQI (US)
15th April 2026
25AQI (US)
25AQI (US)
16th April 2026
19AQI (US)
19AQI (US)
17th April 2026
25AQI (US)
25AQI (US)
18th April 2026
24AQI (US)
24AQI (US)
19th April 2026
26AQI (US)
26AQI (US)
20th April 2026
18AQI (US)
18AQI (US)
21st April 2026
30AQI (US)
30AQI (US)
22nd April 2026
35AQI (US)
35AQI (US)
23rd April 2026
23AQI (US)
23AQI (US)
24th April 2026
36AQI (US)
36AQI (US)
25th April 2026
29AQI (US)
29AQI (US)
26th April 2026
25AQI (US)
25AQI (US)
27th April 2026
25AQI (US)
25AQI (US)
28th April 2026
15AQI (US)
15AQI (US)
29th April 2026
14AQI (US)
14AQI (US)
30th April 2026
23AQI (US)
23AQI (US)
1st May 2026
15AQI (US)
15AQI (US)
2nd May 2026
16AQI (US)
16AQI (US)
3rd May 2026
17AQI (US)
17AQI (US)
4th May 2026
17AQI (US)
17AQI (US)
5th May 2026
24AQI (US)
24AQI (US)
6th May 2026
17AQI (US)
17AQI (US)
7th May 2026
24AQI (US)
24AQI (US)
8th May 2026
22AQI (US)
22AQI (US)
9th May 2026
15AQI (US)
15AQI (US)
10th May 2026
28AQI (US)
28AQI (US)
11th May 2026
23AQI (US)
23AQI (US)
12th May 2026
14AQI (US)
14AQI (US)
13th May 2026
20AQI (US)
20AQI (US)
14th May 2026
20AQI (US)
20AQI (US)
15th May 2026
21AQI (US)
21AQI (US)
16th May 2026
51AQI (US)
51AQI (US)
17th May 2026
54AQI (US)
54AQI (US)
18th May 2026
51AQI (US)
51AQI (US)
19th May 2026
53AQI (US)
53AQI (US)
20th May 2026
59AQI (US)
59AQI (US)
21st May 2026
63AQI (US)
63AQI (US)
22nd May 2026
60AQI (US)
60AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
46AQI (US)
46AQI (US)
25th May 2026
49AQI (US)
49AQI (US)
26th May 2026
35AQI (US)
35AQI (US)
27th May 2026
23AQI (US)
23AQI (US)
28th May 2026
24AQI (US)
24AQI (US)
29th May 2026
31AQI (US)
31AQI (US)
30th May 2026
18AQI (US)
18AQI (US)
31st May 2026
16AQI (US)
16AQI (US)
1st June 2026
17AQI (US)
17AQI (US)
2nd June 2026
24AQI (US)
24AQI (US)
3rd June 2026
21AQI (US)
21AQI (US)
4th June 2026
24AQI (US)
24AQI (US)
5th June 2026
18AQI (US)
18AQI (US)
6th June 2026
20AQI (US)
20AQI (US)
7th June 2026
17AQI (US)
17AQI (US)
8th June 2026
18AQI (US)
18AQI (US)
9th June 2026
22AQI (US)
22AQI (US)
10th June 2026
16AQI (US)
16AQI (US)
11th June 2026
21AQI (US)
21AQI (US)
12th June 2026
23AQI (US)
23AQI (US)
13th June 2026
17AQI (US)
17AQI (US)
14th June 2026
21AQI (US)
21AQI (US)
15th June 2026
20AQI (US)
20AQI (US)
16th June 2026
21AQI (US)
21AQI (US)
17th June 2026
21AQI (US)
21AQI (US)
18th June 2026
22AQI (US)
22AQI (US)
19th June 2026
21AQI (US)
21AQI (US)
20th June 2026
20AQI (US)
20AQI (US)
21st June 2026
19AQI (US)
19AQI (US)
22nd June 2026
17AQI (US)
17AQI (US)
23rd June 2026
21AQI (US)
21AQI (US)
24th June 2026
21AQI (US)
21AQI (US)
25th June 2026
20AQI (US)
20AQI (US)
26th June 2026
19AQI (US)
19AQI (US)
27th June 2026
17AQI (US)
17AQI (US)
28th June 2026
18AQI (US)
18AQI (US)
29th June 2026
22AQI (US)
22AQI (US)
30th June 2026
22AQI (US)
22AQI (US)
1st July 2026
23AQI (US)
23AQI (US)
2nd July 2026
21AQI (US)
21AQI (US)
3rd July 2026
23AQI (US)
23AQI (US)
4th July 2026
22AQI (US)
22AQI (US)
5th July 2026
20AQI (US)
20AQI (US)
6th July 2026
22AQI (US)
22AQI (US)
7th July 2026
23AQI (US)
23AQI (US)
8th July 2026
20AQI (US)
20AQI (US)
9th July 2026
23AQI (US)
23AQI (US)
10th July 2026
22AQI (US)
22AQI (US)
11th July 2026
19AQI (US)
19AQI (US)
12th July 2026
15AQI (US)
15AQI (US)
13th July 2026
20AQI (US)
20AQI (US)
14th July 2026
27AQI (US)
27AQI (US)
15th July 2026
24AQI (US)
24AQI (US)
16th July 2026
14AQI (US)
14AQI (US)
17th July 2026
18AQI (US)
18AQI (US)
18th July 2026
25AQI (US)
25AQI (US)
19th July 2026
22AQI (US)
22AQI (US)
20th July 2026
13AQI (US)
13AQI (US)
21st July 2026
16AQI (US)
16AQI (US)
22nd July 2026
16AQI (US)
16AQI (US)
23rd July 2026
24AQI (US)
24AQI (US)
24th July 2026
22AQI (US)
22AQI (US)
25th July 2026
30AQI (US)
30AQI (US)
26th July 2026
15AQI (US)
15AQI (US)
27th July 2026
13AQI (US)
13AQI (US)
28th July 2026
20AQI (US)
20AQI (US)
29th July 2026
28AQI (US)
28AQI (US)
30th July 2026
20AQI (US)
20AQI (US)
31st July 2026
14AQI (US)
14AQI (US)
1st August 2026
13AQI (US)
13AQI (US)
2nd August 2026
16AQI (US)
16AQI (US)
3rd August 2026
24AQI (US)
24AQI (US)
4th August 2026
19AQI (US)
19AQI (US)
5th August 2026
14AQI (US)
14AQI (US)
6th August 2026
26AQI (US)
26AQI (US)
7th August 2026
29AQI (US)
29AQI (US)
8th August 2026
22AQI (US)
22AQI (US)
9th August 2026
12AQI (US)
12AQI (US)
10th August 2026
15AQI (US)
15AQI (US)
11th August 2026
16AQI (US)
16AQI (US)
12th August 2026
16AQI (US)
16AQI (US)
13th August 2026
19AQI (US)
19AQI (US)
14th August 2026
15AQI (US)
15AQI (US)
15th August 2026
14AQI (US)
14AQI (US)
16th August 2026
17AQI (US)
17AQI (US)
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)
31AQI (US)
31AQI (US)
24AQI (US)
31AQI (US)
20AQI (US)
20AQI (US)
18AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202625AQI (US)
31
26
2
28
3
30
24
7
30
31
16
216
12
Highest AQI (US) recorded in
February31AQI (US)
Lowest AQI (US) recorded in
August18AQI (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
January66AQI (US)
Lowest AQI (US) recorded in
December34AQI (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
December56AQI (US)
Lowest AQI (US) recorded in
July36AQI (US)
202337AQI (US)
26
4
19
9
23
8
15
15
28
3
30
30
1
30
1
27
3
31
26
30
1
315
45
Highest AQI (US) recorded in
April54AQI (US)
Lowest AQI (US) recorded in
December27AQI (US)
202243AQI (US)
30
16
5
2
23
6
11
19
21
10
27
3
20
4
1
26
2
30
30
30
1
243
68
6
Highest AQI (US) recorded in
March76AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202139AQI (US)
18
12
25
3
10
20
1
6
24
27
4
30
31
29
2
30
31
29
1
24
7
290
73
1
Highest AQI (US) recorded in
March59AQI (US)
Lowest AQI (US) recorded in
August29AQI (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
April67AQI (US)
Lowest AQI (US) recorded in
July31AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
51AQI (US)Least Polluted Year Recorded
2026(Avg.)
25AQI (US)City Center's annual 2026 AQI (US) (25) shows an average percentage change of -41.2% (improved AQI (US)) compared to previous years: 2020 (44), 2021 (39), 2022 (43), 2023 (37), 2024 (44), 2025 (51).
