Bda, Chengde, Hebei, 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+
July Air Quality Analysis
Bda, Chengde, Hebei, China
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
9th Jul 2024
107AQILowest AQI recorded on
12th Jul 2026
20AQISame Day Analysis (28th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 54 of Moderate air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 27th Jul - 28th Jul 2026
Bda, Chengde, Hebei, China
AQI
Day
Night
.
4 AM27th Jul 2026
7 PM
3 AM28th Jul 2026
Day time
Avg. Highest Time
10AM27th Jul
98AQI
Avg. Lowest Time
5AM27th Jul
31AQI
Night time
Avg. Highest Time
10PM27th Jul
79AQI
Avg. Lowest Time
3AM28th Jul
60AQI
In the last 24 hours,
Bda's AQI reached its highest point of 98 at 10 AM during the Day, while the lowest point, 31, was recorded at 5 AM during the Day between 27th Jul and 28th Jul 2026.
Day & Night AQI Trend : Jun - Jul 2026
Bda, Chengde, Hebei, China
JunJul
29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th
Day
Night
29th Jun 20261064 AMAQI
29th Jun 2026705 AMAQI
29th Jun 2026606 AMAQI
29th Jun 2026697 AMAQI
29th Jun 2026768 AMAQI
29th Jun 2026489 AMAQI
29th Jun 20264010 AMAQI
29th Jun 20262711 AMAQI
29th Jun 20262512 PMAQI
29th Jun 2026421 PMAQI
29th Jun 2026422 PMAQI
29th Jun 2026643 PMAQI
29th Jun 2026544 PMAQI
29th Jun 2026645 PMAQI
29th Jun 2026676 PMAQI
29th Jun 2026847 PMAQI
29th Jun 2026788 PMAQI
29th Jun 2026869 PMAQI
29th Jun 20269510 PMAQI
29th Jun 20268611 PMAQI
30th Jun 20268412 AMAQI
30th Jun 20261041 AMAQI
30th Jun 2026922 AMAQI
30th Jun 2026763 AMAQI
20°C16/25°C
30th Jun 2026884 AMAQI
30th Jun 2026825 AMAQI
30th Jun 2026706 AMAQI
30th Jun 2026807 AMAQI
30th Jun 2026688 AMAQI
30th Jun 2026299 AMAQI
30th Jun 20262710 AMAQI
30th Jun 20262111 AMAQI
30th Jun 20262112 PMAQI
30th Jun 2026261 PMAQI
30th Jun 2026262 PMAQI
30th Jun 2026213 PMAQI
30th Jun 2026254 PMAQI
30th Jun 2026295 PMAQI
30th Jun 2026296 PMAQI
30th Jun 2026387 PMAQI
30th Jun 2026258 PMAQI
30th Jun 2026209 PMAQI
30th Jun 20262610 PMAQI
30th Jun 20262411 PMAQI
1st Jul 20263212 AMAQI
1st Jul 2026311 AMAQI
1st Jul 2026382 AMAQI
1st Jul 2026483 AMAQI
20°C16/25°C
1st Jul 2026384 AMAQI
1st Jul 2026485 AMAQI
1st Jul 2026366 AMAQI
1st Jul 2026407 AMAQI
1st Jul 2026318 AMAQI
1st Jul 2026519 AMAQI
1st Jul 20264810 AMAQI
1st Jul 20264011 AMAQI
1st Jul 20264412 PMAQI
1st Jul 2026581 PMAQI
1st Jul 2026502 PMAQI
1st Jul 2026443 PMAQI
1st Jul 2026584 PMAQI
1st Jul 2026645 PMAQI
1st Jul 2026746 PMAQI
1st Jul 2026787 PMAQI
1st Jul 2026718 PMAQI
1st Jul 2026389 PMAQI
1st Jul 20265610 PMAQI
1st Jul 20265311 PMAQI
2nd Jul 20266012 AMAQI
2nd Jul 2026571 AMAQI
2nd Jul 2026602 AMAQI
2nd Jul 2026493 AMAQI
21°C16/29°C
2nd Jul 2026574 AMAQI
2nd Jul 2026625 AMAQI
2nd Jul 2026986 AMAQI
2nd Jul 2026897 AMAQI
2nd Jul 2026728 AMAQI
2nd Jul 2026699 AMAQI
2nd Jul 20266810 AMAQI
2nd Jul 20265011 AMAQI
2nd Jul 20264612 PMAQI
2nd Jul 2026701 PMAQI
2nd Jul 2026932 PMAQI
2nd Jul 20261063 PMAQI
2nd Jul 20261124 PMAQI
2nd Jul 2026925 PMAQI
2nd Jul 2026676 PMAQI
2nd Jul 2026587 PMAQI
2nd Jul 2026628 PMAQI
2nd Jul 2026539 PMAQI
2nd Jul 20266210 PMAQI
2nd Jul 20265611 PMAQI
3rd Jul 20266012 AMAQI
3rd Jul 2026521 AMAQI
3rd Jul 2026322 AMAQI
3rd Jul 2026363 AMAQI
23°C17/31°C
3rd Jul 2026344 AMAQI
3rd Jul 2026385 AMAQI
3rd Jul 2026496 AMAQI
3rd Jul 2026687 AMAQI
3rd Jul 2026808 AMAQI
3rd Jul 2026639 AMAQI
3rd Jul 20268410 AMAQI
3rd Jul 20268311 AMAQI
3rd Jul 20269812 PMAQI
3rd Jul 20261001 PMAQI
3rd Jul 20261222 PMAQI
3rd Jul 20261023 PMAQI
3rd Jul 20261194 PMAQI
3rd Jul 20261255 PMAQI
3rd Jul 20261306 PMAQI
3rd Jul 20261167 PMAQI
3rd Jul 20261348 PMAQI
3rd Jul 20261229 PMAQI
3rd Jul 202611810 PMAQI
3rd Jul 20269511 PMAQI
4th Jul 20268212 AMAQI
4th Jul 20261041 AMAQI
4th Jul 2026922 AMAQI
4th Jul 2026893 AMAQI
24°C17/34°C
4th Jul 2026974 AMAQI
4th Jul 2026885 AMAQI
4th Jul 2026976 AMAQI
4th Jul 20261017 AMAQI
4th Jul 20261148 AMAQI
4th Jul 20261029 AMAQI
4th Jul 20269010 AMAQI
4th Jul 20268311 AMAQI
4th Jul 20266012 PMAQI
4th Jul 2026521 PMAQI
4th Jul 2026532 PMAQI
4th Jul 2026503 PMAQI
4th Jul 2026664 PMAQI
4th Jul 2026815 PMAQI
4th Jul 20261106 PMAQI
4th Jul 2026807 PMAQI
4th Jul 2026478 PMAQI
4th Jul 2026259 PMAQI
4th Jul 20261910 PMAQI
4th Jul 20262311 PMAQI
5th Jul 20263112 AMAQI
5th Jul 2026341 AMAQI
5th Jul 2026342 AMAQI
5th Jul 2026293 AMAQI
24°C17/32°C
5th Jul 2026294 AMAQI
5th Jul 2026385 AMAQI
5th Jul 2026686 AMAQI
5th Jul 2026417 AMAQI
5th Jul 2026108 AMAQI
5th Jul 202689 AMAQI
5th Jul 20261410 AMAQI
5th Jul 20261711 AMAQI
5th Jul 20262512 PMAQI
5th Jul 2026271 PMAQI
5th Jul 2026222 PMAQI
5th Jul 2026333 PMAQI
5th Jul 2026554 PMAQI
5th Jul 2026425 PMAQI
5th Jul 2026216 PMAQI
5th Jul 2026177 PMAQI
5th Jul 2026148 PMAQI
5th Jul 2026149 PMAQI
5th Jul 20261310 PMAQI
5th Jul 20262011 PMAQI
6th Jul 20262212 AMAQI
6th Jul 2026271 AMAQI
6th Jul 2026362 AMAQI
6th Jul 2026423 AMAQI
22°C16/30°C
6th Jul 2026464 AMAQI
6th Jul 2026545 AMAQI
6th Jul 2026646 AMAQI
6th Jul 2026767 AMAQI
6th Jul 2026818 AMAQI
6th Jul 2026709 AMAQI
6th Jul 20264810 AMAQI
6th Jul 20263111 AMAQI
6th Jul 20263412 PMAQI
6th Jul 2026321 PMAQI
6th Jul 2026312 PMAQI
6th Jul 2026293 PMAQI
6th Jul 2026244 PMAQI
6th Jul 2026265 PMAQI
6th Jul 2026386 PMAQI
6th Jul 2026417 PMAQI
6th Jul 2026408 PMAQI
6th Jul 2026519 PMAQI
6th Jul 20265010 PMAQI
6th Jul 20263811 PMAQI
7th Jul 20263612 AMAQI
7th Jul 2026231 AMAQI
7th Jul 2026232 AMAQI
7th Jul 2026273 AMAQI
21°C17/29°C
7th Jul 2026294 AMAQI
7th Jul 2026285 AMAQI
7th Jul 2026526 AMAQI
7th Jul 2026627 AMAQI
7th Jul 2026738 AMAQI
7th Jul 2026909 AMAQI
7th Jul 20269410 AMAQI
7th Jul 20269011 AMAQI
7th Jul 20266412 PMAQI
7th Jul 2026361 PMAQI
7th Jul 2026282 PMAQI
7th Jul 2026223 PMAQI
7th Jul 2026184 PMAQI
7th Jul 2026295 PMAQI
7th Jul 2026346 PMAQI
7th Jul 2026257 PMAQI
7th Jul 2026218 PMAQI
7th Jul 2026279 PMAQI
7th Jul 20261410 PMAQI
7th Jul 20262111 PMAQI
8th Jul 20261712 AMAQI
8th Jul 2026201 AMAQI
8th Jul 2026332 AMAQI
8th Jul 2026443 AMAQI
22°C16/31°C
8th Jul 2026424 AMAQI
8th Jul 2026515 AMAQI
8th Jul 2026576 AMAQI
8th Jul 2026547 AMAQI
8th Jul 2026508 AMAQI
8th Jul 2026369 AMAQI
8th Jul 20263810 AMAQI
8th Jul 20262711 AMAQI
8th Jul 20262112 PMAQI
8th Jul 2026251 PMAQI
8th Jul 2026502 PMAQI
8th Jul 2026503 PMAQI
8th Jul 2026234 PMAQI
8th Jul 2026295 PMAQI
8th Jul 2026296 PMAQI
8th Jul 2026207 PMAQI
8th Jul 2026238 PMAQI
8th Jul 2026429 PMAQI
8th Jul 20265810 PMAQI
8th Jul 20264811 PMAQI
9th Jul 20264612 AMAQI
9th Jul 2026291 AMAQI
9th Jul 2026332 AMAQI
9th Jul 2026333 AMAQI
22°C15/30°C
9th Jul 2026404 AMAQI
9th Jul 2026445 AMAQI
9th Jul 2026526 AMAQI
9th Jul 2026587 AMAQI
9th Jul 2026788 AMAQI
9th Jul 2026549 AMAQI
9th Jul 20263410 AMAQI
9th Jul 20262111 AMAQI
9th Jul 20263012 PMAQI
9th Jul 2026301 PMAQI
9th Jul 2026462 PMAQI
9th Jul 2026763 PMAQI
9th Jul 2026744 PMAQI
9th Jul 2026945 PMAQI
9th Jul 2026926 PMAQI
9th Jul 2026907 PMAQI
9th Jul 2026808 PMAQI
9th Jul 2026649 PMAQI
9th Jul 20265810 PMAQI
9th Jul 20265211 PMAQI
10th Jul 20265312 AMAQI
10th Jul 2026361 AMAQI
10th Jul 2026322 AMAQI
10th Jul 2026513 AMAQI
23°C17/31°C
10th Jul 2026644 AMAQI
10th Jul 2026385 AMAQI
10th Jul 2026346 AMAQI
10th Jul 2026507 AMAQI
10th Jul 2026258 AMAQI
10th Jul 2026299 AMAQI
10th Jul 20263810 AMAQI
10th Jul 20262911 AMAQI
10th Jul 20262912 PMAQI
10th Jul 2026241 PMAQI
10th Jul 2026272 PMAQI
10th Jul 2026423 PMAQI
10th Jul 2026464 PMAQI
10th Jul 2026295 PMAQI
10th Jul 2026276 PMAQI
10th Jul 2026317 PMAQI
10th Jul 2026298 PMAQI
10th Jul 2026489 PMAQI
10th Jul 20262110 PMAQI
10th Jul 20263311 PMAQI
11th Jul 20262712 AMAQI
11th Jul 2026221 AMAQI
11th Jul 2026272 AMAQI
11th Jul 2026183 AMAQI
23°C20/26°C
11th Jul 2026254 AMAQI
11th Jul 2026275 AMAQI
11th Jul 2026216 AMAQI
11th Jul 2026217 AMAQI
11th Jul 2026258 AMAQI
11th Jul 2026159 AMAQI
11th Jul 20261410 AMAQI
11th Jul 20261511 AMAQI
11th Jul 20261812 PMAQI
11th Jul 2026191 PMAQI
11th Jul 2026162 PMAQI
11th Jul 2026143 PMAQI
11th Jul 2026194 PMAQI
11th Jul 2026405 PMAQI
11th Jul 2026256 PMAQI
11th Jul 2026237 PMAQI
11th Jul 2026168 PMAQI
11th Jul 2026179 PMAQI
11th Jul 20261210 PMAQI
11th Jul 20261211 PMAQI
12th Jul 20261212 AMAQI
12th Jul 2026141 AMAQI
12th Jul 2026292 AMAQI
12th Jul 2026233 AMAQI
23°C21/24°C
12th Jul 2026134 AMAQI
12th Jul 2026125 AMAQI
12th Jul 2026176 AMAQI
12th Jul 2026127 AMAQI
12th Jul 2026128 AMAQI
12th Jul 2026129 AMAQI
12th Jul 20261410 AMAQI
12th Jul 20261411 AMAQI
12th Jul 20261812 PMAQI
12th Jul 2026161 PMAQI
12th Jul 2026122 PMAQI
12th Jul 2026283 PMAQI
12th Jul 2026294 PMAQI
12th Jul 2026305 PMAQI
12th Jul 2026306 PMAQI
12th Jul 2026317 PMAQI
12th Jul 2026328 PMAQI
12th Jul 2026319 PMAQI
12th Jul 20262810 PMAQI
12th Jul 20262611 PMAQI
13th Jul 20263012 AMAQI
13th Jul 2026301 AMAQI
13th Jul 2026302 AMAQI
13th Jul 2026363 AMAQI
23°C21/26°C
13th Jul 2026404 AMAQI
13th Jul 2026445 AMAQI
13th Jul 2026606 AMAQI
13th Jul 2026597 AMAQI
13th Jul 2026628 AMAQI
13th Jul 2026449 AMAQI
13th Jul 20263010 AMAQI
13th Jul 20263211 AMAQI
13th Jul 20266512 PMAQI
13th Jul 2026541 PMAQI
13th Jul 2026632 PMAQI
13th Jul 2026523 PMAQI
13th Jul 2026404 PMAQI
13th Jul 2026815 PMAQI
13th Jul 2026806 PMAQI
13th Jul 2026647 PMAQI
13th Jul 2026638 PMAQI
13th Jul 2026579 PMAQI
13th Jul 20266510 PMAQI
13th Jul 20267211 PMAQI
14th Jul 20264712 AMAQI
14th Jul 2026601 AMAQI
14th Jul 2026332 AMAQI
14th Jul 2026503 AMAQI
24°C20/31°C
14th Jul 2026324 AMAQI
14th Jul 2026275 AMAQI
14th Jul 2026176 AMAQI
14th Jul 2026267 AMAQI
14th Jul 2026318 AMAQI
14th Jul 2026209 AMAQI
14th Jul 20262010 AMAQI
14th Jul 20261011 AMAQI
14th Jul 20261212 PMAQI
14th Jul 2026381 PMAQI
14th Jul 2026342 PMAQI
14th Jul 2026463 PMAQI
14th Jul 2026464 PMAQI
14th Jul 2026405 PMAQI
14th Jul 2026476 PMAQI
14th Jul 2026507 PMAQI
14th Jul 2026538 PMAQI
14th Jul 2026449 PMAQI
14th Jul 20263610 PMAQI
14th Jul 20263311 PMAQI
15th Jul 20263412 AMAQI
15th Jul 2026461 AMAQI
15th Jul 2026292 AMAQI
15th Jul 2026263 AMAQI
24°C19/30°C
15th Jul 2026254 AMAQI
15th Jul 2026255 AMAQI
15th Jul 2026446 AMAQI
15th Jul 2026527 AMAQI
15th Jul 2026718 AMAQI
15th Jul 2026429 AMAQI
15th Jul 20262010 AMAQI
15th Jul 20262711 AMAQI
15th Jul 20262712 PMAQI
15th Jul 2026231 PMAQI
15th Jul 2026142 PMAQI
15th Jul 2026173 PMAQI
15th Jul 2026294 PMAQI
15th Jul 2026425 PMAQI
15th Jul 2026536 PMAQI
15th Jul 2026427 PMAQI
15th Jul 2026278 PMAQI
15th Jul 2026279 PMAQI
15th Jul 20263110 PMAQI
15th Jul 20263311 PMAQI
16th Jul 20263812 AMAQI
16th Jul 2026401 AMAQI
16th Jul 2026502 AMAQI
16th Jul 2026423 AMAQI
24°C17/32°C
16th Jul 2026174 AMAQI
16th Jul 2026205 AMAQI
16th Jul 2026166 AMAQI
16th Jul 2026167 AMAQI
16th Jul 2026188 AMAQI
16th Jul 2026239 AMAQI
16th Jul 20262110 AMAQI
16th Jul 20261711 AMAQI
16th Jul 20261712 PMAQI
16th Jul 2026271 PMAQI
16th Jul 2026222 PMAQI
16th Jul 2026233 PMAQI
16th Jul 2026324 PMAQI
16th Jul 2026425 PMAQI
16th Jul 2026406 PMAQI
16th Jul 2026317 PMAQI
16th Jul 2026338 PMAQI
16th Jul 2026409 PMAQI
16th Jul 20263610 PMAQI
16th Jul 20263111 PMAQI
17th Jul 20263612 AMAQI
17th Jul 2026361 AMAQI
17th Jul 2026382 AMAQI
17th Jul 2026403 AMAQI
23°C17/30°C
17th Jul 2026424 AMAQI
17th Jul 2026405 AMAQI
17th Jul 2026466 AMAQI
17th Jul 2026567 AMAQI
17th Jul 2026468 AMAQI
17th Jul 2026489 AMAQI
17th Jul 20265010 AMAQI
17th Jul 20264811 AMAQI
17th Jul 20265312 PMAQI
17th Jul 2026661 PMAQI
17th Jul 2026682 PMAQI
17th Jul 2026723 PMAQI
17th Jul 2026744 PMAQI
17th Jul 2026625 PMAQI
17th Jul 2026606 PMAQI
17th Jul 2026607 PMAQI
17th Jul 2026388 PMAQI
17th Jul 2026299 PMAQI
17th Jul 20263310 PMAQI
17th Jul 20262911 PMAQI
18th Jul 20263412 AMAQI
18th Jul 2026381 AMAQI
18th Jul 2026342 AMAQI
18th Jul 2026293 AMAQI
23°C18/29°C
18th Jul 2026424 AMAQI
18th Jul 2026285 AMAQI
18th Jul 2026286 AMAQI
18th Jul 2026347 AMAQI
18th Jul 2026368 AMAQI
18th Jul 2026409 AMAQI
18th Jul 20265910 AMAQI
18th Jul 20265311 AMAQI
18th Jul 20264012 PMAQI
18th Jul 2026381 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026423 PMAQI
18th Jul 2026514 PMAQI
18th Jul 2026525 PMAQI
18th Jul 2026506 PMAQI
18th Jul 2026517 PMAQI
18th Jul 2026518 PMAQI
18th Jul 2026389 PMAQI
18th Jul 20264810 PMAQI
18th Jul 20266411 PMAQI
19th Jul 20266512 AMAQI
19th Jul 2026451 AMAQI
19th Jul 2026422 AMAQI
19th Jul 2026213 AMAQI
22°C16/29°C
19th Jul 2026214 AMAQI
19th Jul 2026255 AMAQI
19th Jul 2026316 AMAQI
19th Jul 2026367 AMAQI
19th Jul 2026318 AMAQI
19th Jul 2026279 AMAQI
19th Jul 20262710 AMAQI
19th Jul 20264211 AMAQI
19th Jul 20262312 PMAQI
19th Jul 2026291 PMAQI
19th Jul 2026342 PMAQI
19th Jul 2026233 PMAQI
19th Jul 2026284 PMAQI
19th Jul 2026465 PMAQI
19th Jul 2026606 PMAQI
19th Jul 2026657 PMAQI
19th Jul 2026628 PMAQI
19th Jul 2026669 PMAQI
19th Jul 20267910 PMAQI
19th Jul 20268611 PMAQI
20th Jul 20267612 AMAQI
20th Jul 2026861 AMAQI
20th Jul 2026922 AMAQI
20th Jul 2026873 AMAQI
22°C18/29°C
20th Jul 2026924 AMAQI
20th Jul 2026805 AMAQI
20th Jul 2026746 AMAQI
20th Jul 2026717 AMAQI
20th Jul 2026698 AMAQI
20th Jul 2026669 AMAQI
20th Jul 20266010 AMAQI
20th Jul 20266911 AMAQI
20th Jul 20265212 PMAQI
20th Jul 2026211 PMAQI
20th Jul 2026232 PMAQI
20th Jul 2026253 PMAQI
20th Jul 2026334 PMAQI
20th Jul 2026315 PMAQI
20th Jul 2026276 PMAQI
20th Jul 2026507 PMAQI
20th Jul 2026498 PMAQI
20th Jul 2026469 PMAQI
20th Jul 20264210 PMAQI
20th Jul 20266211 PMAQI
21st Jul 20264812 AMAQI
21st Jul 2026561 AMAQI
21st Jul 2026512 AMAQI
21st Jul 2026493 AMAQI
23°C18/30°C
21st Jul 2026424 AMAQI
21st Jul 2026575 AMAQI
21st Jul 2026607 AMAQI
21st Jul 2026858 AMAQI
21st Jul 2026769 AMAQI
21st Jul 20266910 AMAQI
21st Jul 20266811 AMAQI
21st Jul 20265812 PMAQI
21st Jul 2026941 PMAQI
21st Jul 2026572 PMAQI
21st Jul 2026723 PMAQI
21st Jul 2026714 PMAQI
21st Jul 2026825 PMAQI
21st Jul 2026946 PMAQI
21st Jul 2026847 PMAQI
21st Jul 2026868 PMAQI
21st Jul 2026769 PMAQI
21st Jul 20266010 PMAQI
21st Jul 20267011 PMAQI
22nd Jul 20266712 AMAQI
22nd Jul 2026421 AMAQI
22nd Jul 2026592 AMAQI
22nd Jul 2026673 AMAQI
23°C18/30°C
22nd Jul 2026874 AMAQI
22nd Jul 2026695 AMAQI
22nd Jul 2026486 AMAQI
22nd Jul 2026427 AMAQI
22nd Jul 2026338 AMAQI
22nd Jul 2026409 AMAQI
22nd Jul 20263410 AMAQI
22nd Jul 20262311 AMAQI
22nd Jul 20262912 PMAQI
22nd Jul 2026271 PMAQI
22nd Jul 2026322 PMAQI
22nd Jul 2026343 PMAQI
22nd Jul 2026404 PMAQI
22nd Jul 2026485 PMAQI
22nd Jul 2026516 PMAQI
22nd Jul 2026347 PMAQI
22nd Jul 2026538 PMAQI
22nd Jul 2026429 PMAQI
22nd Jul 20263310 PMAQI
22nd Jul 20265611 PMAQI
23rd Jul 20265112 AMAQI
23rd Jul 2026631 AMAQI
23rd Jul 2026552 AMAQI
23rd Jul 2026643 AMAQI
23°C19/30°C
23rd Jul 2026404 AMAQI
23rd Jul 2026555 AMAQI
23rd Jul 2026596 AMAQI
23rd Jul 2026807 AMAQI
23rd Jul 2026798 AMAQI
23rd Jul 2026819 AMAQI
23rd Jul 20269910 AMAQI
23rd Jul 202611211 AMAQI
23rd Jul 20269512 PMAQI
23rd Jul 20261041 PMAQI
23rd Jul 2026882 PMAQI
23rd Jul 20261153 PMAQI
23rd Jul 20261264 PMAQI
23rd Jul 20261105 PMAQI
23rd Jul 20261096 PMAQI
23rd Jul 2026987 PMAQI
23rd Jul 2026908 PMAQI
23rd Jul 2026829 PMAQI
23rd Jul 20269710 PMAQI
23rd Jul 20268111 PMAQI
24th Jul 20267912 AMAQI
24th Jul 2026741 AMAQI
24th Jul 2026712 AMAQI
24th Jul 2026743 AMAQI
22°C17/28°C
24th Jul 20261004 AMAQI
24th Jul 2026765 AMAQI
24th Jul 2026766 AMAQI
24th Jul 2026747 AMAQI
24th Jul 2026718 AMAQI
24th Jul 2026689 AMAQI
24th Jul 20265310 AMAQI
24th Jul 20264411 AMAQI
24th Jul 20262512 PMAQI
24th Jul 2026381 PMAQI
24th Jul 2026362 PMAQI
24th Jul 2026353 PMAQI
24th Jul 2026334 PMAQI
24th Jul 2026535 PMAQI
24th Jul 2026736 PMAQI
24th Jul 2026687 PMAQI
24th Jul 2026638 PMAQI
24th Jul 2026699 PMAQI
24th Jul 20265910 PMAQI
24th Jul 20263611 PMAQI
25th Jul 20265712 AMAQI
25th Jul 2026601 AMAQI
25th Jul 2026602 AMAQI
25th Jul 2026483 AMAQI
23°C17/30°C
25th Jul 2026404 AMAQI
25th Jul 2026465 AMAQI
25th Jul 2026586 AMAQI
25th Jul 2026527 AMAQI
25th Jul 2026678 AMAQI
25th Jul 2026509 AMAQI
25th Jul 20264210 AMAQI
25th Jul 20265111 AMAQI
25th Jul 20264212 PMAQI
25th Jul 2026361 PMAQI
25th Jul 2026342 PMAQI
25th Jul 2026363 PMAQI
25th Jul 2026524 PMAQI
25th Jul 2026425 PMAQI
25th Jul 2026496 PMAQI
25th Jul 2026317 PMAQI
25th Jul 2026488 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262910 PMAQI
25th Jul 20262911 PMAQI
26th Jul 20262812 AMAQI
26th Jul 2026281 AMAQI
26th Jul 2026442 AMAQI
26th Jul 2026243 AMAQI
24°C18/31°C
26th Jul 2026254 AMAQI
26th Jul 2026445 AMAQI
26th Jul 2026336 AMAQI
26th Jul 2026467 AMAQI
26th Jul 2026328 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262910 AMAQI
26th Jul 20263411 AMAQI
26th Jul 20263412 PMAQI
26th Jul 2026321 PMAQI
26th Jul 2026362 PMAQI
26th Jul 2026293 PMAQI
26th Jul 2026404 PMAQI
26th Jul 2026545 PMAQI
26th Jul 2026626 PMAQI
26th Jul 2026557 PMAQI
26th Jul 2026428 PMAQI
26th Jul 2026319 PMAQI
26th Jul 20264210 PMAQI
26th Jul 20263111 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026291 AMAQI
27th Jul 2026232 AMAQI
27th Jul 2026293 AMAQI
24°C19/30°C
27th Jul 2026404 AMAQI
27th Jul 2026315 AMAQI
27th Jul 2026516 AMAQI
27th Jul 2026787 AMAQI
27th Jul 2026888 AMAQI
27th Jul 2026929 AMAQI
27th Jul 20269810 AMAQI
27th Jul 20269211 AMAQI
27th Jul 20265612 PMAQI
27th Jul 2026361 PMAQI
27th Jul 2026472 PMAQI
27th Jul 2026633 PMAQI
27th Jul 2026744 PMAQI
27th Jul 2026785 PMAQI
27th Jul 2026826 PMAQI
27th Jul 2026787 PMAQI
27th Jul 2026768 PMAQI
27th Jul 2026789 PMAQI
27th Jul 20267910 PMAQI
27th Jul 20267311 PMAQI
28th Jul 20267012 AMAQI
28th Jul 2026701 AMAQI
28th Jul 2026732 AMAQI
28th Jul 2026603 AMAQI
25°C19/32°C
28th Jul 2026664 AMAQI
4 AM28th Jul 2026715 AMAQI
28th Jul 2026746 AMAQI
28th Jul 2026577 AMAQI
28th Jul 2026628 AMAQI
28th Jul 2026509 AMAQI
28th Jul 20263810 AMAQI
28th Jul 20263411 AMAQI
11 AM28th Jul 20263312 PMAQI
28th Jul 2026321 PMAQI
28th Jul 2026272 PMAQI
28th Jul 2026363 PMAQI
28th Jul 2026514 PMAQI
28th Jul 2026675 PMAQI
28th Jul 2026686 PMAQI
28th Jul 2026487 PMAQI
7 PM28th Jul 2026488 PMAQI
28th Jul 2026549 PMAQI
28th Jul 20265410 PMAQI
28th Jul 20265211 PMAQI
11 PM3 AM
26°C20/34°C
Day time
Avg. Highest Time
6 PM
59AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 PM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 PM to 6 PM (Avg. 59), while the lowest AQI was between 12 PM to 12 PM (Avg. 40).
Night time
Avg. Highest Time
8 PM
52AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 3 AM
49AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 8 PM (Avg. 52), while the lowest AQI was between 12 AM to 3 AM (Avg. 49).
2026 Days Vs Air Quality
Bda, Chengde, Hebei, China
2026
40%
83
48%
101
11%
23
0.9%
2
Total number of days with different AQI categories in last 209 days in 2026 (156 days remaining)
Good
83 DaysModerate
101 DaysPoor
23 DaysUnhealthy
2 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 40%
Health Risk Level:
Significant
In 2026, 40% of 209 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
Bda, Chengde, Hebei, 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
65AQI (US)
65AQI (US)
2nd January 2026
75AQI (US)
75AQI (US)
3rd January 2026
104AQI (US)
104AQI (US)
4th January 2026
91AQI (US)
91AQI (US)
5th January 2026
63AQI (US)
63AQI (US)
6th January 2026
46AQI (US)
46AQI (US)
7th January 2026
56AQI (US)
56AQI (US)
8th January 2026
87AQI (US)
87AQI (US)
9th January 2026
103AQI (US)
103AQI (US)
10th January 2026
29AQI (US)
29AQI (US)
11th January 2026
39AQI (US)
39AQI (US)
12th January 2026
53AQI (US)
53AQI (US)
13th January 2026
53AQI (US)
53AQI (US)
14th January 2026
99AQI (US)
99AQI (US)
15th January 2026
147AQI (US)
147AQI (US)
16th January 2026
70AQI (US)
70AQI (US)
17th January 2026
48AQI (US)
48AQI (US)
18th January 2026
59AQI (US)
59AQI (US)
19th January 2026
34AQI (US)
34AQI (US)
20th January 2026
37AQI (US)
37AQI (US)
21st January 2026
47AQI (US)
47AQI (US)
22nd January 2026
71AQI (US)
71AQI (US)
23rd January 2026
72AQI (US)
72AQI (US)
24th January 2026
48AQI (US)
48AQI (US)
25th January 2026
57AQI (US)
57AQI (US)
26th January 2026
57AQI (US)
57AQI (US)
27th January 2026
56AQI (US)
56AQI (US)
28th January 2026
91AQI (US)
91AQI (US)
29th January 2026
84AQI (US)
84AQI (US)
30th January 2026
112AQI (US)
112AQI (US)
31st January 2026
53AQI (US)
53AQI (US)
1st February 2026
43AQI (US)
43AQI (US)
2nd February 2026
51AQI (US)
51AQI (US)
3rd February 2026
96AQI (US)
96AQI (US)
4th February 2026
141AQI (US)
141AQI (US)
5th February 2026
74AQI (US)
74AQI (US)
6th February 2026
28AQI (US)
28AQI (US)
7th February 2026
23AQI (US)
23AQI (US)
8th February 2026
46AQI (US)
46AQI (US)
9th February 2026
92AQI (US)
92AQI (US)
10th February 2026
78AQI (US)
78AQI (US)
11th February 2026
60AQI (US)
60AQI (US)
12th February 2026
99AQI (US)
99AQI (US)
13th February 2026
101AQI (US)
101AQI (US)
14th February 2026
83AQI (US)
83AQI (US)
15th February 2026
32AQI (US)
32AQI (US)
16th February 2026
57AQI (US)
57AQI (US)
17th February 2026
80AQI (US)
80AQI (US)
18th February 2026
50AQI (US)
50AQI (US)
19th February 2026
76AQI (US)
76AQI (US)
20th February 2026
97AQI (US)
97AQI (US)
21st February 2026
101AQI (US)
101AQI (US)
22nd February 2026
54AQI (US)
54AQI (US)
23rd February 2026
48AQI (US)
48AQI (US)
24th February 2026
87AQI (US)
87AQI (US)
25th February 2026
134AQI (US)
134AQI (US)
26th February 2026
82AQI (US)
82AQI (US)
27th February 2026
104AQI (US)
104AQI (US)
28th February 2026
86AQI (US)
86AQI (US)
1st March 2026
110AQI (US)
110AQI (US)
2nd March 2026
136AQI (US)
136AQI (US)
3rd March 2026
100AQI (US)
100AQI (US)
4th March 2026
97AQI (US)
97AQI (US)
5th March 2026
100AQI (US)
100AQI (US)
6th March 2026
46AQI (US)
46AQI (US)
7th March 2026
94AQI (US)
94AQI (US)
8th March 2026
86AQI (US)
86AQI (US)
9th March 2026
33AQI (US)
33AQI (US)
10th March 2026
90AQI (US)
90AQI (US)
11th March 2026
60AQI (US)
60AQI (US)
12th March 2026
111AQI (US)
111AQI (US)
13th March 2026
143AQI (US)
143AQI (US)
14th March 2026
63AQI (US)
63AQI (US)
15th March 2026
64AQI (US)
64AQI (US)
16th March 2026
89AQI (US)
89AQI (US)
17th March 2026
134AQI (US)
134AQI (US)
18th March 2026
49AQI (US)
49AQI (US)
19th March 2026
44AQI (US)
44AQI (US)
20th March 2026
60AQI (US)
60AQI (US)
21st March 2026
102AQI (US)
102AQI (US)
22nd March 2026
126AQI (US)
126AQI (US)
23rd March 2026
152AQI (US)
152AQI (US)
24th March 2026
154AQI (US)
154AQI (US)
25th March 2026
127AQI (US)
127AQI (US)
26th March 2026
84AQI (US)
84AQI (US)
27th March 2026
43AQI (US)
43AQI (US)
28th March 2026
67AQI (US)
67AQI (US)
29th March 2026
92AQI (US)
92AQI (US)
30th March 2026
38AQI (US)
38AQI (US)
31st March 2026
46AQI (US)
46AQI (US)
1st April 2026
33AQI (US)
33AQI (US)
2nd April 2026
75AQI (US)
75AQI (US)
3rd April 2026
94AQI (US)
94AQI (US)
4th April 2026
86AQI (US)
86AQI (US)
5th April 2026
46AQI (US)
46AQI (US)
6th April 2026
32AQI (US)
32AQI (US)
7th April 2026
42AQI (US)
42AQI (US)
8th April 2026
78AQI (US)
78AQI (US)
9th April 2026
65AQI (US)
65AQI (US)
10th April 2026
27AQI (US)
27AQI (US)
11th April 2026
52AQI (US)
52AQI (US)
12th April 2026
56AQI (US)
56AQI (US)
13th April 2026
47AQI (US)
47AQI (US)
14th April 2026
99AQI (US)
99AQI (US)
15th April 2026
129AQI (US)
129AQI (US)
16th April 2026
113AQI (US)
113AQI (US)
17th April 2026
69AQI (US)
69AQI (US)
18th April 2026
112AQI (US)
112AQI (US)
19th April 2026
78AQI (US)
78AQI (US)
20th April 2026
63AQI (US)
63AQI (US)
21st April 2026
48AQI (US)
48AQI (US)
22nd April 2026
54AQI (US)
54AQI (US)
23rd April 2026
82AQI (US)
82AQI (US)
24th April 2026
87AQI (US)
87AQI (US)
25th April 2026
72AQI (US)
72AQI (US)
26th April 2026
60AQI (US)
60AQI (US)
27th April 2026
43AQI (US)
43AQI (US)
28th April 2026
27AQI (US)
27AQI (US)
29th April 2026
22AQI (US)
22AQI (US)
30th April 2026
31AQI (US)
31AQI (US)
1st May 2026
44AQI (US)
44AQI (US)
2nd May 2026
39AQI (US)
39AQI (US)
3rd May 2026
20AQI (US)
20AQI (US)
4th May 2026
26AQI (US)
26AQI (US)
5th May 2026
61AQI (US)
61AQI (US)
6th May 2026
48AQI (US)
48AQI (US)
7th May 2026
23AQI (US)
23AQI (US)
8th May 2026
32AQI (US)
32AQI (US)
9th May 2026
71AQI (US)
71AQI (US)
10th May 2026
68AQI (US)
68AQI (US)
11th May 2026
37AQI (US)
37AQI (US)
12th May 2026
62AQI (US)
62AQI (US)
13th May 2026
120AQI (US)
120AQI (US)
14th May 2026
123AQI (US)
123AQI (US)
15th May 2026
102AQI (US)
102AQI (US)
16th May 2026
78AQI (US)
78AQI (US)
17th May 2026
65AQI (US)
65AQI (US)
18th May 2026
63AQI (US)
63AQI (US)
19th May 2026
63AQI (US)
63AQI (US)
20th May 2026
69AQI (US)
69AQI (US)
21st May 2026
82AQI (US)
82AQI (US)
22nd May 2026
87AQI (US)
87AQI (US)
23rd May 2026
82AQI (US)
82AQI (US)
24th May 2026
76AQI (US)
76AQI (US)
25th May 2026
71AQI (US)
71AQI (US)
26th May 2026
52AQI (US)
52AQI (US)
27th May 2026
42AQI (US)
42AQI (US)
28th May 2026
28AQI (US)
28AQI (US)
29th May 2026
23AQI (US)
23AQI (US)
30th May 2026
36AQI (US)
36AQI (US)
31st May 2026
54AQI (US)
54AQI (US)
1st June 2026
39AQI (US)
39AQI (US)
2nd June 2026
83AQI (US)
83AQI (US)
3rd June 2026
32AQI (US)
32AQI (US)
4th June 2026
26AQI (US)
26AQI (US)
5th June 2026
37AQI (US)
37AQI (US)
6th June 2026
31AQI (US)
31AQI (US)
7th June 2026
32AQI (US)
32AQI (US)
8th June 2026
34AQI (US)
34AQI (US)
9th June 2026
30AQI (US)
30AQI (US)
10th June 2026
30AQI (US)
30AQI (US)
11th June 2026
28AQI (US)
28AQI (US)
12th June 2026
48AQI (US)
48AQI (US)
13th June 2026
68AQI (US)
68AQI (US)
14th June 2026
44AQI (US)
44AQI (US)
15th June 2026
99AQI (US)
99AQI (US)
16th June 2026
86AQI (US)
86AQI (US)
17th June 2026
38AQI (US)
38AQI (US)
18th June 2026
75AQI (US)
75AQI (US)
19th June 2026
83AQI (US)
83AQI (US)
20th June 2026
36AQI (US)
36AQI (US)
21st June 2026
26AQI (US)
26AQI (US)
22nd June 2026
37AQI (US)
37AQI (US)
23rd June 2026
38AQI (US)
38AQI (US)
24th June 2026
55AQI (US)
55AQI (US)
25th June 2026
23AQI (US)
23AQI (US)
26th June 2026
34AQI (US)
34AQI (US)
27th June 2026
49AQI (US)
49AQI (US)
28th June 2026
91AQI (US)
91AQI (US)
29th June 2026
73AQI (US)
73AQI (US)
30th June 2026
49AQI (US)
49AQI (US)
1st July 2026
48AQI (US)
48AQI (US)
2nd July 2026
70AQI (US)
70AQI (US)
3rd July 2026
84AQI (US)
84AQI (US)
4th July 2026
80AQI (US)
80AQI (US)
5th July 2026
28AQI (US)
28AQI (US)
6th July 2026
43AQI (US)
43AQI (US)
7th July 2026
42AQI (US)
42AQI (US)
8th July 2026
36AQI (US)
36AQI (US)
9th July 2026
54AQI (US)
54AQI (US)
10th July 2026
37AQI (US)
37AQI (US)
11th July 2026
21AQI (US)
21AQI (US)
12th July 2026
20AQI (US)
20AQI (US)
13th July 2026
51AQI (US)
51AQI (US)
14th July 2026
36AQI (US)
36AQI (US)
15th July 2026
34AQI (US)
34AQI (US)
16th July 2026
28AQI (US)
28AQI (US)
17th July 2026
50AQI (US)
50AQI (US)
18th July 2026
41AQI (US)
41AQI (US)
19th July 2026
39AQI (US)
39AQI (US)
20th July 2026
58AQI (US)
58AQI (US)
21st July 2026
68AQI (US)
68AQI (US)
22nd July 2026
46AQI (US)
46AQI (US)
23rd July 2026
84AQI (US)
84AQI (US)
24th July 2026
62AQI (US)
62AQI (US)
25th July 2026
47AQI (US)
47AQI (US)
26th July 2026
37AQI (US)
37AQI (US)
27th July 2026
61AQI (US)
61AQI (US)
28th July 2026
54AQI (US)
54AQI (US)
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
68AQI (US)
75AQI (US)
88AQI (US)
64AQI (US)
60AQI (US)
48AQI (US)
49AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202665AQI (US)
8
19
4
7
16
5
7
14
8
2
11
16
3
12
16
3
21
9
17
11
83
101
23
2
Highest AQI (US) recorded in
March88AQI (US)
Lowest AQI (US) recorded in
June48AQI (US)
202574AQI (US)
23
7
1
2
21
5
24
6
1
2
27
1
28
3
30
5
26
1
30
1
29
25
5
1
25
5
20
11
11
308
43
3
Highest AQI (US) recorded in
December91AQI (US)
Lowest AQI (US) recorded in
August59AQI (US)
202477AQI (US)
18
9
3
16
12
1
23
7
1
1
22
7
4
23
4
2
25
3
7
23
1
18
13
15
15
4
22
4
1
4
18
5
3
1
29
1
56
247
53
9
Highest AQI (US) recorded in
January98AQI (US)
Lowest AQI (US) recorded in
August50AQI (US)
202385AQI (US)
1
11
16
2
14
9
5
18
9
3
1
1
19
6
2
2
28
2
1
7
19
4
7
23
1
13
18
10
16
4
3
23
1
4
1
24
2
1
1
18
12
1
43
231
66
18
5
Highest AQI (US) recorded in
February111AQI (US)
Lowest AQI (US) recorded in
August55AQI (US)
202282AQI (US)
11
11
8
15
6
22
8
1
1
19
8
9
21
1
6
18
6
7
15
1
1
1
6
17
5
9
11
11
3
16
8
3
25
6
42
190
72
12
Highest AQI (US) recorded in
January115AQI (US)
Lowest AQI (US) recorded in
July58AQI (US)
202183AQI (US)
16
9
6
15
8
5
1
10
8
10
2
2
22
6
25
4
2
1
28
1
17
14
13
18
9
21
3
22
6
3
12
12
3
1
16
14
50
219
68
24
2
2
Highest AQI (US) recorded in
March134AQI (US)
Lowest AQI (US) recorded in
July46AQI (US)
202076AQI (US)
2
8
2
1
5
13
3
8
7
3
5
21
4
2
27
2
4
26
1
10
18
2
7
16
6
2
1
20
7
2
1
20
9
1
45
176
39
6
Highest AQI (US) recorded in
December93AQI (US)
Lowest AQI (US) recorded in
September61AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
85AQI (US)Least Polluted Year Recorded
2026(Avg.)
65AQI (US)Bda's annual 2026 AQI (US) (65) shows an average percentage change of -18.02% (improved AQI (US)) compared to previous years: 2020 (76), 2021 (83), 2022 (82), 2023 (85), 2024 (77), 2025 (74).
