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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Yanxian County Environmental Protection Bureau, Yanan, Shaanxi, 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

Yanxian County Environmental Protection Bureau, Yanan, Shaanxi, China

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
17th Aug 2023
119AQI
Lowest AQI recorded on
3rd Aug 2026
24AQI

Same Day Analysis (18th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 50 of Good air quality, showing improvement over 2025 and 2023 on the same day.

Day & Night AQI Trend: 17th Aug - 18th Aug 2026

Yanxian County Environmental Protection Bureau, Yanan, Shaanxi, China

AQI
Day
Night
.

5 AM17th Aug 2026

7 PM

4 AM18th Aug 2026

Day time
Avg. Highest Time
12PM17th Aug

49AQI

Avg. Lowest Time
7AM17th Aug

31AQI

Night time
Avg. Highest Time
9PM17th Aug

50AQI

Avg. Lowest Time
1AM18th Aug

40AQI

In the last 24 hours,

Yanxian County Environmental Protection Bureau's AQI reached its highest point of 50 at 9 PM during the Night, while the lowest point, 31, was recorded at 7 AM during the Day between 17th Aug and 18th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Yanxian County Environmental Protection Bureau, Yanan, Shaanxi, China

JulAug
20th - 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 - 17th17th - 18th18th
Day
Night
20th Jul 2026445 AMAQI
20th Jul 2026426 AMAQI
20th Jul 2026427 AMAQI
20th Jul 2026368 AMAQI
20th Jul 2026389 AMAQI
20th Jul 20263810 AMAQI
20th Jul 20263311 AMAQI
20th Jul 20263812 PMAQI
20th Jul 2026331 PMAQI
20th Jul 2026382 PMAQI
20th Jul 2026403 PMAQI
20th Jul 2026484 PMAQI
20th Jul 2026385 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026567 PMAQI
20th Jul 2026578 PMAQI
20th Jul 2026559 PMAQI
20th Jul 20265810 PMAQI
20th Jul 20265811 PMAQI
21st Jul 20265312 AMAQI
21st Jul 2026521 AMAQI
21st Jul 2026562 AMAQI
21st Jul 2026543 AMAQI
21st Jul 2026514 AMAQI

26°C18/36°C

21st Jul 2026525 AMAQI
21st Jul 2026516 AMAQI
21st Jul 2026527 AMAQI
21st Jul 2026518 AMAQI
21st Jul 2026489 AMAQI
21st Jul 20265610 AMAQI
21st Jul 20265312 PMAQI
21st Jul 2026551 PMAQI
21st Jul 2026522 PMAQI
21st Jul 2026513 PMAQI
21st Jul 2026514 PMAQI
21st Jul 2026505 PMAQI
21st Jul 2026906 PMAQI
21st Jul 2026517 PMAQI
21st Jul 2026528 PMAQI
21st Jul 2026529 PMAQI
21st Jul 20265110 PMAQI
21st Jul 20265111 PMAQI
22nd Jul 20265012 AMAQI
22nd Jul 2026501 AMAQI
22nd Jul 2026522 AMAQI
22nd Jul 2026513 AMAQI
22nd Jul 2026514 AMAQI

24°C19/30°C

22nd Jul 2026505 AMAQI
22nd Jul 2026466 AMAQI
22nd Jul 2026487 AMAQI
22nd Jul 2026468 AMAQI
22nd Jul 2026509 AMAQI
22nd Jul 20264610 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20264012 PMAQI
22nd Jul 2026381 PMAQI
22nd Jul 2026402 PMAQI
22nd Jul 2026363 PMAQI
22nd Jul 2026334 PMAQI
22nd Jul 2026365 PMAQI
22nd Jul 2026296 PMAQI
22nd Jul 2026337 PMAQI
22nd Jul 2026298 PMAQI
22nd Jul 2026369 PMAQI
22nd Jul 20264010 PMAQI
22nd Jul 20264211 PMAQI
23rd Jul 20263812 AMAQI
23rd Jul 2026401 AMAQI
23rd Jul 2026382 AMAQI
23rd Jul 2026363 AMAQI
23rd Jul 2026384 AMAQI

21°C15/32°C

23rd Jul 2026405 AMAQI
23rd Jul 2026406 AMAQI
23rd Jul 2026387 AMAQI
23rd Jul 2026468 AMAQI
23rd Jul 2026519 AMAQI
23rd Jul 20264810 AMAQI
23rd Jul 20264811 AMAQI
23rd Jul 20264812 PMAQI
23rd Jul 2026491 PMAQI
23rd Jul 2026542 PMAQI
23rd Jul 2026543 PMAQI
23rd Jul 2026534 PMAQI
23rd Jul 2026525 PMAQI
23rd Jul 2026526 PMAQI
23rd Jul 2026547 PMAQI
23rd Jul 2026558 PMAQI
23rd Jul 2026609 PMAQI
23rd Jul 20266710 PMAQI
23rd Jul 20267411 PMAQI
24th Jul 20267812 AMAQI
24th Jul 2026781 AMAQI
24th Jul 2026762 AMAQI
24th Jul 2026783 AMAQI
24th Jul 2026604 AMAQI

23°C16/32°C

24th Jul 2026335 AMAQI
24th Jul 2026276 AMAQI
24th Jul 2026187 AMAQI
24th Jul 2026148 AMAQI
24th Jul 2026239 AMAQI
24th Jul 20262310 AMAQI
24th Jul 20262311 AMAQI
24th Jul 20262112 PMAQI
24th Jul 2026171 PMAQI
24th Jul 2026272 PMAQI
24th Jul 2026273 PMAQI
24th Jul 2026274 PMAQI
24th Jul 2026335 PMAQI
24th Jul 2026446 PMAQI
24th Jul 2026587 PMAQI
24th Jul 2026648 PMAQI
24th Jul 2026589 PMAQI
24th Jul 20265410 PMAQI
24th Jul 20265911 PMAQI
25th Jul 20265812 AMAQI
25th Jul 2026591 AMAQI
25th Jul 2026532 AMAQI
25th Jul 2026503 AMAQI
25th Jul 2026544 AMAQI

25°C19/32°C

25th Jul 2026535 AMAQI
25th Jul 2026546 AMAQI
25th Jul 2026517 AMAQI
25th Jul 2026538 AMAQI
25th Jul 2026589 AMAQI
25th Jul 20265810 AMAQI
25th Jul 20267011 AMAQI
25th Jul 20267212 PMAQI
25th Jul 2026701 PMAQI
25th Jul 2026742 PMAQI
25th Jul 2026743 PMAQI
25th Jul 2026764 PMAQI
25th Jul 2026745 PMAQI
25th Jul 2026746 PMAQI
25th Jul 2026747 PMAQI
25th Jul 2026908 PMAQI
25th Jul 2026889 PMAQI
25th Jul 20268510 PMAQI
25th Jul 20268611 PMAQI
26th Jul 20268512 AMAQI
26th Jul 2026841 AMAQI
26th Jul 2026902 AMAQI
26th Jul 2026893 AMAQI
26th Jul 2026904 AMAQI

25°C19/33°C

26th Jul 2026835 AMAQI
26th Jul 2026846 AMAQI
26th Jul 2026867 AMAQI
26th Jul 2026838 AMAQI
26th Jul 2026809 AMAQI
26th Jul 20268310 AMAQI
26th Jul 20267911 AMAQI
26th Jul 20267212 PMAQI
26th Jul 2026621 PMAQI
26th Jul 2026562 PMAQI
26th Jul 2026543 PMAQI
26th Jul 2026554 PMAQI
26th Jul 2026515 PMAQI
26th Jul 2026506 PMAQI
26th Jul 2026387 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026559 PMAQI
26th Jul 20265710 PMAQI
26th Jul 20265211 PMAQI
27th Jul 20265112 AMAQI
27th Jul 2026541 AMAQI
27th Jul 2026712 AMAQI
27th Jul 2026543 AMAQI
27th Jul 2026464 AMAQI

25°C20/31°C

27th Jul 2026445 AMAQI
27th Jul 2026366 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026218 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262910 AMAQI
27th Jul 20262311 AMAQI
27th Jul 20262312 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026363 PMAQI
27th Jul 2026314 PMAQI
27th Jul 2026475 PMAQI
27th Jul 2026546 PMAQI
27th Jul 2026597 PMAQI
27th Jul 2026468 PMAQI
27th Jul 2026449 PMAQI
27th Jul 20265610 PMAQI
27th Jul 20265711 PMAQI
28th Jul 20265712 AMAQI
28th Jul 2026541 AMAQI
28th Jul 2026492 AMAQI
28th Jul 2026463 AMAQI
28th Jul 2026454 AMAQI

23°C19/28°C

28th Jul 2026545 AMAQI
28th Jul 2026516 AMAQI
28th Jul 2026487 AMAQI
28th Jul 2026508 AMAQI
28th Jul 2026569 AMAQI
28th Jul 20265610 AMAQI
28th Jul 20265411 AMAQI
28th Jul 20265112 PMAQI
28th Jul 2026501 PMAQI
28th Jul 2026492 PMAQI
28th Jul 2026503 PMAQI
28th Jul 2026484 PMAQI
28th Jul 2026445 PMAQI
28th Jul 2026386 PMAQI
28th Jul 2026387 PMAQI
28th Jul 2026408 PMAQI
28th Jul 2026429 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20264811 PMAQI
29th Jul 20264212 AMAQI
29th Jul 2026421 AMAQI
29th Jul 2026442 AMAQI
29th Jul 2026423 AMAQI
29th Jul 2026424 AMAQI

24°C20/28°C

29th Jul 2026445 AMAQI
29th Jul 2026406 AMAQI
29th Jul 2026467 AMAQI
29th Jul 2026498 AMAQI
29th Jul 2026529 AMAQI
29th Jul 20264910 AMAQI
29th Jul 20264911 AMAQI
29th Jul 20264612 PMAQI
29th Jul 2026401 PMAQI
29th Jul 2026382 PMAQI
29th Jul 2026383 PMAQI
29th Jul 2026364 PMAQI
29th Jul 2026335 PMAQI
29th Jul 2026336 PMAQI
29th Jul 2026367 PMAQI
29th Jul 2026388 PMAQI
29th Jul 2026389 PMAQI
29th Jul 20264010 PMAQI
29th Jul 20264411 PMAQI
30th Jul 20264412 AMAQI
30th Jul 2026471 AMAQI
30th Jul 2026482 AMAQI
30th Jul 2026483 AMAQI
30th Jul 2026484 AMAQI

24°C19/28°C

30th Jul 2026445 AMAQI
30th Jul 2026466 AMAQI
30th Jul 2026447 AMAQI
30th Jul 2026498 AMAQI
30th Jul 2026539 AMAQI
30th Jul 20265310 AMAQI
30th Jul 20265111 AMAQI
30th Jul 20265112 PMAQI
30th Jul 2026511 PMAQI
30th Jul 2026512 PMAQI
30th Jul 2026463 PMAQI
30th Jul 2026444 PMAQI
30th Jul 2026465 PMAQI
30th Jul 2026406 PMAQI
30th Jul 2026427 PMAQI
30th Jul 2026338 PMAQI
30th Jul 2026369 PMAQI
30th Jul 20263110 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20263312 AMAQI
31st Jul 2026311 AMAQI
31st Jul 2026252 AMAQI
31st Jul 2026273 AMAQI
31st Jul 2026274 AMAQI

26°C20/32°C

31st Jul 2026235 AMAQI
31st Jul 2026236 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026218 AMAQI
31st Jul 2026219 AMAQI
31st Jul 20262710 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262512 PMAQI
31st Jul 2026231 PMAQI
31st Jul 2026212 PMAQI
31st Jul 2026233 PMAQI
31st Jul 2026234 PMAQI
31st Jul 2026215 PMAQI
31st Jul 2026236 PMAQI
31st Jul 2026257 PMAQI
31st Jul 2026258 PMAQI
31st Jul 2026279 PMAQI
31st Jul 20262910 PMAQI
31st Jul 20262911 PMAQI
1st Aug 20262912 AMAQI
1st Aug 2026311 AMAQI
1st Aug 2026312 AMAQI
1st Aug 2026313 AMAQI
1st Aug 2026294 AMAQI

22°C20/26°C

1st Aug 2026275 AMAQI
1st Aug 2026296 AMAQI
1st Aug 2026277 AMAQI
1st Aug 2026258 AMAQI
1st Aug 2026279 AMAQI
1st Aug 20262710 AMAQI
1st Aug 20262911 AMAQI
1st Aug 20262712 PMAQI
1st Aug 2026311 PMAQI
1st Aug 2026362 PMAQI
1st Aug 2026363 PMAQI
1st Aug 2026364 PMAQI
1st Aug 2026385 PMAQI
1st Aug 2026406 PMAQI
1st Aug 2026387 PMAQI
1st Aug 2026388 PMAQI
1st Aug 2026369 PMAQI
1st Aug 20263610 PMAQI
1st Aug 20263811 PMAQI
2nd Aug 20264212 AMAQI
2nd Aug 2026421 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026403 AMAQI
2nd Aug 2026384 AMAQI

24°C18/31°C

2nd Aug 2026385 AMAQI
2nd Aug 2026386 AMAQI
2nd Aug 2026407 AMAQI
2nd Aug 2026388 AMAQI
2nd Aug 2026389 AMAQI
2nd Aug 20263810 AMAQI
2nd Aug 20263311 AMAQI
2nd Aug 20263312 PMAQI
2nd Aug 2026361 PMAQI
2nd Aug 2026362 PMAQI
2nd Aug 2026333 PMAQI
2nd Aug 2026364 PMAQI
2nd Aug 2026335 PMAQI
2nd Aug 2026366 PMAQI
2nd Aug 2026387 PMAQI
2nd Aug 2026338 PMAQI
2nd Aug 2026339 PMAQI
2nd Aug 20262910 PMAQI
2nd Aug 20262911 PMAQI
3rd Aug 20262912 AMAQI
3rd Aug 2026271 AMAQI
3rd Aug 2026252 AMAQI
3rd Aug 2026253 AMAQI
3rd Aug 2026254 AMAQI

20°C17/23°C

3rd Aug 2026235 AMAQI
3rd Aug 2026236 AMAQI
3rd Aug 2026257 AMAQI
3rd Aug 2026238 AMAQI
3rd Aug 2026259 AMAQI
3rd Aug 20262510 AMAQI
3rd Aug 20262511 AMAQI
3rd Aug 20262512 PMAQI
3rd Aug 2026231 PMAQI
3rd Aug 2026212 PMAQI
3rd Aug 2026303 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026215 PMAQI
3rd Aug 2026276 PMAQI
3rd Aug 2026217 PMAQI
3rd Aug 2026238 PMAQI
3rd Aug 2026219 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20262512 AMAQI
4th Aug 2026251 AMAQI
4th Aug 2026252 AMAQI
4th Aug 2026253 AMAQI
4th Aug 2026234 AMAQI

19°C16/24°C

4th Aug 2026215 AMAQI
4th Aug 2026216 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026239 AMAQI
4th Aug 20262310 AMAQI
4th Aug 20262311 AMAQI
4th Aug 20262512 PMAQI
4th Aug 2026211 PMAQI
4th Aug 2026212 PMAQI
4th Aug 2026253 PMAQI
4th Aug 2026214 PMAQI
4th Aug 2026215 PMAQI
4th Aug 2026276 PMAQI
4th Aug 2026337 PMAQI
4th Aug 2026258 PMAQI
4th Aug 2026259 PMAQI
4th Aug 20262510 PMAQI
4th Aug 20262911 PMAQI
5th Aug 20262912 AMAQI
5th Aug 2026291 AMAQI
5th Aug 2026292 AMAQI
5th Aug 2026333 AMAQI
5th Aug 2026274 AMAQI

20°C15/27°C

5th Aug 2026255 AMAQI
5th Aug 2026256 AMAQI
5th Aug 2026257 AMAQI
5th Aug 2026238 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20262510 AMAQI
5th Aug 20262711 AMAQI
5th Aug 20263112 PMAQI
5th Aug 2026311 PMAQI
5th Aug 2026292 PMAQI
5th Aug 2026383 PMAQI
5th Aug 2026314 PMAQI
5th Aug 2026335 PMAQI
5th Aug 2026316 PMAQI
5th Aug 2026367 PMAQI
5th Aug 2026368 PMAQI
5th Aug 2026389 PMAQI
5th Aug 20263310 PMAQI
5th Aug 20263811 PMAQI
6th Aug 20263812 AMAQI
6th Aug 2026421 AMAQI
6th Aug 2026212 AMAQI
6th Aug 2026213 AMAQI
6th Aug 2026344 AMAQI

19°C18/20°C

6th Aug 2026365 AMAQI
6th Aug 2026426 AMAQI
6th Aug 2026327 AMAQI
6th Aug 2026218 AMAQI
6th Aug 2026239 AMAQI
6th Aug 20262510 AMAQI
6th Aug 20263111 AMAQI
6th Aug 20263612 PMAQI
6th Aug 2026331 PMAQI
6th Aug 2026382 PMAQI
6th Aug 2026403 PMAQI
6th Aug 2026384 PMAQI
6th Aug 2026465 PMAQI
6th Aug 2026426 PMAQI
6th Aug 2026447 PMAQI
6th Aug 2026728 PMAQI
6th Aug 2026669 PMAQI
6th Aug 20265510 PMAQI
6th Aug 20265311 PMAQI
7th Aug 20266212 AMAQI
7th Aug 2026671 AMAQI
7th Aug 2026622 AMAQI
7th Aug 2026723 AMAQI
7th Aug 2026714 AMAQI

21°C18/26°C

7th Aug 2026595 AMAQI
7th Aug 2026556 AMAQI
7th Aug 2026607 AMAQI
7th Aug 2026678 AMAQI
7th Aug 2026689 AMAQI
7th Aug 20266810 AMAQI
7th Aug 20266811 AMAQI
7th Aug 20266812 PMAQI
7th Aug 2026711 PMAQI
7th Aug 2026692 PMAQI
7th Aug 2026583 PMAQI
7th Aug 2026564 PMAQI
7th Aug 2026575 PMAQI
7th Aug 2026586 PMAQI
7th Aug 2026517 PMAQI
7th Aug 2026468 PMAQI
7th Aug 2026469 PMAQI
7th Aug 20263810 PMAQI
7th Aug 20264211 PMAQI
8th Aug 20264812 AMAQI
8th Aug 2026421 AMAQI
8th Aug 2026482 AMAQI
8th Aug 2026313 AMAQI
8th Aug 2026314 AMAQI

23°C17/30°C

8th Aug 2026385 AMAQI
8th Aug 2026496 AMAQI
8th Aug 2026467 AMAQI
8th Aug 2026468 AMAQI
8th Aug 2026519 AMAQI
8th Aug 20265210 AMAQI
8th Aug 20264811 AMAQI
8th Aug 20264412 PMAQI
8th Aug 2026511 PMAQI
8th Aug 2026502 PMAQI
8th Aug 2026533 PMAQI
8th Aug 2026544 PMAQI
8th Aug 2026545 PMAQI
8th Aug 2026536 PMAQI
8th Aug 2026557 PMAQI
8th Aug 2026558 PMAQI
8th Aug 2026589 PMAQI
8th Aug 20266210 PMAQI
8th Aug 20265911 PMAQI
9th Aug 20266012 AMAQI
9th Aug 2026651 AMAQI
9th Aug 2026602 AMAQI
9th Aug 2026603 AMAQI
9th Aug 2026644 AMAQI

24°C18/29°C

9th Aug 2026625 AMAQI
9th Aug 2026646 AMAQI
9th Aug 2026657 AMAQI
9th Aug 2026678 AMAQI
9th Aug 2026859 AMAQI
9th Aug 20268810 AMAQI
9th Aug 20268311 AMAQI
9th Aug 20267612 PMAQI
9th Aug 2026641 PMAQI
9th Aug 2026622 PMAQI
9th Aug 2026603 PMAQI
9th Aug 2026594 PMAQI
9th Aug 2026565 PMAQI
9th Aug 2026526 PMAQI
9th Aug 2026567 PMAQI
9th Aug 2026578 PMAQI
9th Aug 2026589 PMAQI
9th Aug 20265910 PMAQI
9th Aug 20266511 PMAQI
10th Aug 20265512 AMAQI
10th Aug 2026521 AMAQI
10th Aug 2026522 AMAQI
10th Aug 2026583 AMAQI
10th Aug 2026624 AMAQI

23°C18/29°C

10th Aug 2026595 AMAQI
10th Aug 2026566 AMAQI
10th Aug 2026587 AMAQI
10th Aug 2026608 AMAQI
10th Aug 2026569 AMAQI
10th Aug 20265910 AMAQI
10th Aug 20265811 AMAQI
10th Aug 20265612 PMAQI
10th Aug 2026571 PMAQI
10th Aug 2026562 PMAQI
10th Aug 2026583 PMAQI
10th Aug 2026554 PMAQI
10th Aug 2026565 PMAQI
10th Aug 2026546 PMAQI
10th Aug 2026537 PMAQI
10th Aug 2026568 PMAQI
10th Aug 2026629 PMAQI
10th Aug 20266210 PMAQI
10th Aug 20267811 PMAQI
11th Aug 20268212 AMAQI
11th Aug 2026891 AMAQI
11th Aug 2026862 AMAQI
11th Aug 2026903 AMAQI
11th Aug 2026884 AMAQI

23°C17/30°C

11th Aug 2026865 AMAQI
11th Aug 2026926 AMAQI
11th Aug 20261007 AMAQI
11th Aug 2026908 AMAQI
11th Aug 2026819 AMAQI
11th Aug 20268910 AMAQI
11th Aug 20268011 AMAQI
11th Aug 20267312 PMAQI
11th Aug 2026561 PMAQI
11th Aug 2026552 PMAQI
11th Aug 2026533 PMAQI
11th Aug 2026504 PMAQI
11th Aug 2026505 PMAQI
11th Aug 2026526 PMAQI
11th Aug 2026497 PMAQI
11th Aug 2026508 PMAQI
11th Aug 2026629 PMAQI
11th Aug 20266710 PMAQI
11th Aug 20265211 PMAQI
12th Aug 20265612 AMAQI
12th Aug 2026641 AMAQI
12th Aug 2026622 AMAQI
12th Aug 2026653 AMAQI
12th Aug 2026524 AMAQI

24°C17/31°C

12th Aug 2026255 AMAQI
12th Aug 2026256 AMAQI
12th Aug 2026197 AMAQI
12th Aug 2026148 AMAQI
12th Aug 2026129 AMAQI
12th Aug 20262010 AMAQI
12th Aug 20263111 AMAQI
12th Aug 20263812 PMAQI
12th Aug 2026401 PMAQI
12th Aug 2026442 PMAQI
12th Aug 2026513 PMAQI
12th Aug 2026534 PMAQI
12th Aug 2026485 PMAQI
12th Aug 2026466 PMAQI
12th Aug 2026507 PMAQI
12th Aug 2026548 PMAQI
12th Aug 2026569 PMAQI
12th Aug 20266210 PMAQI
12th Aug 20266511 PMAQI
13th Aug 20264212 AMAQI
13th Aug 2026271 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026313 AMAQI
13th Aug 2026294 AMAQI

22°C17/28°C

13th Aug 2026365 AMAQI
13th Aug 2026336 AMAQI
13th Aug 2026317 AMAQI
13th Aug 2026368 AMAQI
13th Aug 2026659 AMAQI
13th Aug 20265610 AMAQI
13th Aug 20265011 AMAQI
13th Aug 20264612 PMAQI
13th Aug 2026441 PMAQI
13th Aug 2026422 PMAQI
13th Aug 2026423 PMAQI
13th Aug 2026424 PMAQI
13th Aug 2026385 PMAQI
13th Aug 2026366 PMAQI
13th Aug 2026337 PMAQI
13th Aug 2026338 PMAQI
13th Aug 2026339 PMAQI
13th Aug 20263810 PMAQI
13th Aug 20263811 PMAQI
14th Aug 20264212 AMAQI
14th Aug 2026381 AMAQI
14th Aug 2026402 AMAQI
14th Aug 2026403 AMAQI
14th Aug 2026424 AMAQI

22°C16/29°C

14th Aug 2026425 AMAQI
14th Aug 2026446 AMAQI
14th Aug 2026427 AMAQI
14th Aug 2026428 AMAQI
14th Aug 2026489 AMAQI
14th Aug 20264810 AMAQI
14th Aug 20265111 AMAQI
14th Aug 20264412 PMAQI
14th Aug 2026421 PMAQI
14th Aug 2026402 PMAQI
14th Aug 2026403 PMAQI
14th Aug 2026424 PMAQI
14th Aug 2026405 PMAQI
14th Aug 2026386 PMAQI
14th Aug 2026367 PMAQI
14th Aug 2026428 PMAQI
14th Aug 2026449 PMAQI
14th Aug 20264210 PMAQI
14th Aug 20264611 PMAQI
15th Aug 20264812 AMAQI
15th Aug 2026501 AMAQI
15th Aug 2026512 AMAQI
15th Aug 2026513 AMAQI
15th Aug 2026484 AMAQI

23°C17/28°C

15th Aug 2026515 AMAQI
15th Aug 2026516 AMAQI
15th Aug 2026507 AMAQI
15th Aug 2026568 AMAQI
15th Aug 2026569 AMAQI
15th Aug 20265310 AMAQI
15th Aug 20265311 AMAQI
15th Aug 20265112 PMAQI
15th Aug 2026481 PMAQI
15th Aug 2026462 PMAQI
15th Aug 2026463 PMAQI
15th Aug 2026444 PMAQI
15th Aug 2026425 PMAQI
15th Aug 2026406 PMAQI
15th Aug 2026387 PMAQI
15th Aug 2026408 PMAQI
15th Aug 2026409 PMAQI
15th Aug 20264010 PMAQI
15th Aug 20264211 PMAQI
16th Aug 20264212 AMAQI
16th Aug 2026401 AMAQI
16th Aug 2026362 AMAQI
16th Aug 2026313 AMAQI
16th Aug 2026314 AMAQI

22°C16/30°C

16th Aug 2026295 AMAQI
16th Aug 2026296 AMAQI
16th Aug 2026297 AMAQI
16th Aug 2026278 AMAQI
16th Aug 2026279 AMAQI
16th Aug 20262910 AMAQI
16th Aug 20262511 AMAQI
16th Aug 20262512 PMAQI
16th Aug 2026271 PMAQI
16th Aug 2026252 PMAQI
16th Aug 2026273 PMAQI
16th Aug 2026274 PMAQI
16th Aug 2026255 PMAQI
16th Aug 2026256 PMAQI
16th Aug 2026257 PMAQI
16th Aug 2026258 PMAQI
16th Aug 2026279 PMAQI
16th Aug 20262910 PMAQI
16th Aug 20263311 PMAQI
17th Aug 20263812 AMAQI
17th Aug 2026381 AMAQI
17th Aug 2026372 AMAQI
17th Aug 2026373 AMAQI
17th Aug 2026344 AMAQI

23°C16/31°C

17th Aug 2026315 AMAQI
17th Aug 2026336 AMAQI
17th Aug 2026317 AMAQI
17th Aug 2026408 AMAQI
17th Aug 2026429 AMAQI
17th Aug 20264610 AMAQI
17th Aug 20264611 AMAQI
17th Aug 20264912 PMAQI
17th Aug 2026441 PMAQI
17th Aug 2026422 PMAQI
17th Aug 2026463 PMAQI
17th Aug 2026464 PMAQI
17th Aug 2026465 PMAQI
17th Aug 2026486 PMAQI
17th Aug 2026467 PMAQI
17th Aug 2026428 PMAQI
17th Aug 2026509 PMAQI
17th Aug 20264010 PMAQI
17th Aug 20264811 PMAQI
18th Aug 20264612 AMAQI
18th Aug 2026401 AMAQI
18th Aug 2026502 AMAQI
18th Aug 2026463 AMAQI
18th Aug 2026504 AMAQI

12°C11/13°C

18th Aug 2026505 AMAQI
5 AM
18th Aug 2026466 AMAQI
18th Aug 2026487 AMAQI
18th Aug 2026518 AMAQI
18th Aug 2026539 AMAQI
18th Aug 20265410 AMAQI
18th Aug 20265511 AMAQI
18th Aug 20265512 PMAQI
12 PM
18th Aug 2026521 PMAQI
18th Aug 2026522 PMAQI
18th Aug 2026503 PMAQI
18th Aug 2026504 PMAQI
18th Aug 2026465 PMAQI
18th Aug 2026506 PMAQI
18th Aug 2026487 PMAQI
7 PM
18th Aug 2026518 PMAQI
18th Aug 2026529 PMAQI
18th Aug 20265310 PMAQI
18th Aug 20265311 PMAQI
12 AM
4 AM

22°C18/28°C

Day time
Avg. Highest Time
9 AM - 12 PM

45AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
5 AM - 8 AM

43AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 12 PM (Avg. 45), while the lowest AQI was between 5 AM to 8 AM (Avg. 43).
Night time
Avg. Highest Time
11 PM

49AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 8 PM

47AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 PM to 11 PM (Avg. 49), while the lowest AQI was between 12 AM to 8 PM (Avg. 47).

2026 Days Vs Air Quality

Yanxian County Environmental Protection Bureau, Yanan, Shaanxi, China

2026

24%

56

56%

129

18%

42

1%

3

Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)

Good
56 Days
Moderate
129 Days
Poor
42 Days
Unhealthy
3 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 24%

Health Risk Level:

Very high

In 2026, 24% of 230 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.

Annual Air Quality Insights

Yanxian County Environmental Protection Bureau, Yanan, Shaanxi, 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
129AQI (US)
2nd January 2026
122AQI (US)
3rd January 2026
114AQI (US)
4th January 2026
129AQI (US)
5th January 2026
102AQI (US)
6th January 2026
94AQI (US)
7th January 2026
90AQI (US)
8th January 2026
86AQI (US)
9th January 2026
82AQI (US)
10th January 2026
71AQI (US)
11th January 2026
72AQI (US)
12th January 2026
86AQI (US)
13th January 2026
92AQI (US)
14th January 2026
104AQI (US)
15th January 2026
96AQI (US)
16th January 2026
96AQI (US)
17th January 2026
123AQI (US)
18th January 2026
102AQI (US)
19th January 2026
40AQI (US)
20th January 2026
53AQI (US)
21st January 2026
85AQI (US)
22nd January 2026
110AQI (US)
23rd January 2026
118AQI (US)
24th January 2026
122AQI (US)
25th January 2026
147AQI (US)
26th January 2026
128AQI (US)
27th January 2026
112AQI (US)
28th January 2026
123AQI (US)
29th January 2026
150AQI (US)
30th January 2026
155AQI (US)
31st January 2026
152AQI (US)
1st February 2026
120AQI (US)
2nd February 2026
74AQI (US)
3rd February 2026
93AQI (US)
4th February 2026
111AQI (US)
5th February 2026
119AQI (US)
6th February 2026
103AQI (US)
7th February 2026
63AQI (US)
8th February 2026
67AQI (US)
9th February 2026
98AQI (US)
10th February 2026
97AQI (US)
11th February 2026
105AQI (US)
12th February 2026
102AQI (US)
13th February 2026
97AQI (US)
14th February 2026
102AQI (US)
15th February 2026
68AQI (US)
16th February 2026
78AQI (US)
17th February 2026
120AQI (US)
18th February 2026
87AQI (US)
19th February 2026
75AQI (US)
20th February 2026
83AQI (US)
21st February 2026
84AQI (US)
22nd February 2026
119AQI (US)
23rd February 2026
146AQI (US)
24th February 2026
92AQI (US)
25th February 2026
127AQI (US)
26th February 2026
128AQI (US)
27th February 2026
136AQI (US)
28th February 2026
95AQI (US)
1st March 2026
69AQI (US)
2nd March 2026
59AQI (US)
3rd March 2026
77AQI (US)
4th March 2026
129AQI (US)
5th March 2026
102AQI (US)
6th March 2026
57AQI (US)
7th March 2026
96AQI (US)
8th March 2026
134AQI (US)
9th March 2026
118AQI (US)
10th March 2026
130AQI (US)
11th March 2026
82AQI (US)
12th March 2026
122AQI (US)
13th March 2026
156AQI (US)
14th March 2026
106AQI (US)
15th March 2026
72AQI (US)
16th March 2026
92AQI (US)
17th March 2026
123AQI (US)
18th March 2026
74AQI (US)
19th March 2026
85AQI (US)
20th March 2026
96AQI (US)
21st March 2026
111AQI (US)
22nd March 2026
94AQI (US)
23rd March 2026
99AQI (US)
24th March 2026
116AQI (US)
25th March 2026
96AQI (US)
26th March 2026
97AQI (US)
27th March 2026
94AQI (US)
28th March 2026
90AQI (US)
29th March 2026
77AQI (US)
30th March 2026
85AQI (US)
31st March 2026
70AQI (US)
1st April 2026
67AQI (US)
2nd April 2026
77AQI (US)
3rd April 2026
84AQI (US)
4th April 2026
73AQI (US)
5th April 2026
87AQI (US)
6th April 2026
72AQI (US)
7th April 2026
81AQI (US)
8th April 2026
112AQI (US)
9th April 2026
83AQI (US)
10th April 2026
69AQI (US)
11th April 2026
61AQI (US)
12th April 2026
70AQI (US)
13th April 2026
92AQI (US)
14th April 2026
84AQI (US)
15th April 2026
89AQI (US)
16th April 2026
71AQI (US)
17th April 2026
57AQI (US)
18th April 2026
71AQI (US)
19th April 2026
79AQI (US)
20th April 2026
76AQI (US)
21st April 2026
60AQI (US)
22nd April 2026
71AQI (US)
23rd April 2026
69AQI (US)
24th April 2026
82AQI (US)
25th April 2026
79AQI (US)
26th April 2026
87AQI (US)
27th April 2026
79AQI (US)
28th April 2026
71AQI (US)
29th April 2026
64AQI (US)
30th April 2026
83AQI (US)
1st May 2026
77AQI (US)
2nd May 2026
57AQI (US)
3rd May 2026
53AQI (US)
4th May 2026
62AQI (US)
5th May 2026
68AQI (US)
6th May 2026
78AQI (US)
7th May 2026
70AQI (US)
8th May 2026
81AQI (US)
9th May 2026
67AQI (US)
10th May 2026
98AQI (US)
11th May 2026
105AQI (US)
12th May 2026
105AQI (US)
13th May 2026
99AQI (US)
14th May 2026
76AQI (US)
15th May 2026
93AQI (US)
16th May 2026
78AQI (US)
17th May 2026
78AQI (US)
18th May 2026
75AQI (US)
19th May 2026
76AQI (US)
20th May 2026
89AQI (US)
21st May 2026
99AQI (US)
22nd May 2026
95AQI (US)
23rd May 2026
89AQI (US)
24th May 2026
83AQI (US)
25th May 2026
84AQI (US)
26th May 2026
59AQI (US)
27th May 2026
70AQI (US)
28th May 2026
60AQI (US)
29th May 2026
51AQI (US)
30th May 2026
47AQI (US)
31st May 2026
55AQI (US)
1st June 2026
71AQI (US)
2nd June 2026
69AQI (US)
3rd June 2026
70AQI (US)
4th June 2026
56AQI (US)
5th June 2026
58AQI (US)
6th June 2026
39AQI (US)
7th June 2026
37AQI (US)
8th June 2026
46AQI (US)
9th June 2026
34AQI (US)
10th June 2026
29AQI (US)
11th June 2026
38AQI (US)
12th June 2026
51AQI (US)
13th June 2026
42AQI (US)
14th June 2026
27AQI (US)
15th June 2026
48AQI (US)
16th June 2026
68AQI (US)
17th June 2026
70AQI (US)
18th June 2026
68AQI (US)
19th June 2026
43AQI (US)
20th June 2026
38AQI (US)
21st June 2026
34AQI (US)
22nd June 2026
22AQI (US)
23rd June 2026
40AQI (US)
24th June 2026
58AQI (US)
25th June 2026
51AQI (US)
26th June 2026
44AQI (US)
27th June 2026
60AQI (US)
28th June 2026
57AQI (US)
29th June 2026
58AQI (US)
30th June 2026
48AQI (US)
1st July 2026
35AQI (US)
2nd July 2026
43AQI (US)
3rd July 2026
55AQI (US)
4th July 2026
45AQI (US)
5th July 2026
43AQI (US)
6th July 2026
46AQI (US)
7th July 2026
42AQI (US)
8th July 2026
50AQI (US)
9th July 2026
51AQI (US)
10th July 2026
62AQI (US)
11th July 2026
20AQI (US)
12th July 2026
35AQI (US)
13th July 2026
44AQI (US)
14th July 2026
48AQI (US)
15th July 2026
44AQI (US)
16th July 2026
39AQI (US)
17th July 2026
31AQI (US)
18th July 2026
49AQI (US)
19th July 2026
55AQI (US)
20th July 2026
44AQI (US)
21st July 2026
54AQI (US)
22nd July 2026
42AQI (US)
23rd July 2026
49AQI (US)
24th July 2026
42AQI (US)
25th July 2026
67AQI (US)
26th July 2026
69AQI (US)
27th July 2026
41AQI (US)
28th July 2026
48AQI (US)
29th July 2026
42AQI (US)
30th July 2026
45AQI (US)
31st July 2026
25AQI (US)
1st August 2026
32AQI (US)
2nd August 2026
36AQI (US)
3rd August 2026
24AQI (US)
4th August 2026
24AQI (US)
5th August 2026
30AQI (US)
6th August 2026
39AQI (US)
7th August 2026
60AQI (US)
8th August 2026
49AQI (US)
9th August 2026
64AQI (US)
10th August 2026
58AQI (US)
11th August 2026
72AQI (US)
12th August 2026
44AQI (US)
13th August 2026
39AQI (US)
14th August 2026
42AQI (US)
15th August 2026
47AQI (US)
16th August 2026
29AQI (US)
17th August 2026
42AQI (US)
18th August 2026
50AQI (US)
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

106AQI (US)

100AQI (US)

97AQI (US)

77AQI (US)

77AQI (US)

49AQI (US)

45AQI (US)

43AQI (US)

No. of days

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

202676AQI (US)

1
12
16
2
15
13
20
10
1
29
1
1
28
2
16
14
24
7
14
4
56
129
42
3

Highest AQI (US) recorded in

January

106AQI (US)

Lowest AQI (US) recorded in

August

43AQI (US)

202585AQI (US)

16
13
2
21
6
1
15
11
1
3
1
16
12
1
1
23
5
2
1
2
28
6
25
5
26
7
23
2
27
2
1
21
8
11
20
23
252
77
7
5
1

Highest AQI (US) recorded in

March

121AQI (US)

Lowest AQI (US) recorded in

August

56AQI (US)

202483AQI (US)

1
13
11
6
7
9
11
1
1
1
22
6
2
28
2
2
26
3
1
26
3
7
23
1
9
21
4
23
3
4
26
1
5
17
8
27
4
34
259
51
19
1
1

Highest AQI (US) recorded in

February

142AQI (US)

Lowest AQI (US) recorded in

August

57AQI (US)

202393AQI (US)

8
16
6
7
10
5
1
1
1
5
1
2
4
1
1
12
1
3
23
2
16
1
1
1
1
9
6
1
20
7
3
11
106
43
15
1

Highest AQI (US) recorded in

March

170AQI (US)

Lowest AQI (US) recorded in

October

50AQI (US)

202290AQI (US)

11
11
9
10
9
2
14
12
2
1
1
18
11
1
2
27
2
1
28
1
5
19
1
8
20
1
7
19
5
16
12
2
18
13
23
201
77
15
2
1

Highest AQI (US) recorded in

January

124AQI (US)

Lowest AQI (US) recorded in

July

59AQI (US)

202195AQI (US)

16
9
3
3
17
7
1
12
9
3
2
4
2
17
9
1
1
2
13
9
2
2
1
16
2
5
21
4
24
2
12
18
4
27
1
22
6
1
23
8
31
226
61
10
8
5

Highest AQI (US) recorded in

March

184AQI (US)

Lowest AQI (US) recorded in

September

57AQI (US)

202085AQI (US)

7
5
1
19
2
16
1
1
24
6
28
3
9
19
2
1
5
18
7
1
22
8
1
18
7
4
2
18
10
1
18
189
50
7
1
1

Highest AQI (US) recorded in

March

102AQI (US)

Lowest AQI (US) recorded in

August

75AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2021(Avg.)
95AQI (US)
Least Polluted Year Recorded
2026(Avg.)
76AQI (US)

Yanxian County Environmental Protection Bureau's annual 2026 AQI (US) (76) shows an average percentage change of -13.9% (improved AQI (US)) compared to previous years: 2020 (85), 2021 (95), 2022 (90), 2023 (93), 2024 (83), 2025 (85).