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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Yanchuan 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

Yanchuan 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
126AQI
Lowest AQI recorded on
3rd Aug 2026
28AQI

Same Day Analysis (18th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 48 of Good air quality, showing improvement over 2025 and 2023 on the same day.

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

Yanchuan 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
10AM17th Aug

62AQI

Avg. Lowest Time
4PM17th Aug

33AQI

Night time
Avg. Highest Time
3AM18th Aug

55AQI

Avg. Lowest Time
10PM17th Aug

42AQI

In the last 24 hours,

Yanchuan County Environmental Protection Bureau's AQI reached its highest point of 62 at 10 AM during the Day, while the lowest point, 33, was recorded at 4 PM during the Day between 17th Aug and 18th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Yanchuan 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 2026255 AMAQI
20th Jul 2026216 AMAQI
20th Jul 2026237 AMAQI
20th Jul 2026258 AMAQI
20th Jul 2026279 AMAQI
20th Jul 20262910 AMAQI
20th Jul 20262911 AMAQI
20th Jul 20262512 PMAQI
20th Jul 2026331 PMAQI
20th Jul 2026362 PMAQI
20th Jul 2026363 PMAQI
20th Jul 2026464 PMAQI
20th Jul 2026425 PMAQI
20th Jul 2026406 PMAQI
20th Jul 2026537 PMAQI
20th Jul 2026558 PMAQI
20th Jul 2026559 PMAQI
20th Jul 20265810 PMAQI
20th Jul 20266411 PMAQI
21st Jul 20267012 AMAQI
21st Jul 2026741 AMAQI
21st Jul 2026702 AMAQI
21st Jul 2026673 AMAQI
21st Jul 2026624 AMAQI

27°C20/34°C

21st Jul 2026625 AMAQI
21st Jul 2026626 AMAQI
21st Jul 2026597 AMAQI
21st Jul 2026598 AMAQI
21st Jul 2026659 AMAQI
21st Jul 20265710 AMAQI
21st Jul 20265212 PMAQI
21st Jul 2026521 PMAQI
21st Jul 2026462 PMAQI
21st Jul 2026463 PMAQI
21st Jul 2026404 PMAQI
21st Jul 2026445 PMAQI
21st Jul 2026866 PMAQI
21st Jul 2026467 PMAQI
21st Jul 2026428 PMAQI
21st Jul 2026489 PMAQI
21st Jul 20264610 PMAQI
21st Jul 20264611 PMAQI
22nd Jul 20264612 AMAQI
22nd Jul 2026461 AMAQI
22nd Jul 2026552 AMAQI
22nd Jul 2026583 AMAQI
22nd Jul 2026574 AMAQI

25°C22/30°C

22nd Jul 2026605 AMAQI
22nd Jul 2026586 AMAQI
22nd Jul 2026597 AMAQI
22nd Jul 2026628 AMAQI
22nd Jul 2026609 AMAQI
22nd Jul 20265410 AMAQI
22nd Jul 20263311 AMAQI
22nd Jul 20262912 PMAQI
22nd Jul 2026261 PMAQI
22nd Jul 2026292 PMAQI
22nd Jul 2026313 PMAQI
22nd Jul 2026254 PMAQI
22nd Jul 2026365 PMAQI
22nd Jul 2026366 PMAQI
22nd Jul 2026337 PMAQI
22nd Jul 2026448 PMAQI
22nd Jul 2026529 PMAQI
22nd Jul 20265510 PMAQI
22nd Jul 20266511 PMAQI
23rd Jul 20266012 AMAQI
23rd Jul 2026631 AMAQI
23rd Jul 2026462 AMAQI
23rd Jul 2026553 AMAQI
23rd Jul 2026584 AMAQI

22°C16/32°C

23rd Jul 2026645 AMAQI
23rd Jul 2026546 AMAQI
23rd Jul 2026537 AMAQI
23rd Jul 2026428 AMAQI
23rd Jul 2026739 AMAQI
23rd Jul 20266910 AMAQI
23rd Jul 20266011 AMAQI
23rd Jul 20265712 PMAQI
23rd Jul 2026531 PMAQI
23rd Jul 2026462 PMAQI
23rd Jul 2026443 PMAQI
23rd Jul 2026364 PMAQI
23rd Jul 2026365 PMAQI
23rd Jul 2026316 PMAQI
23rd Jul 2026367 PMAQI
23rd Jul 2026478 PMAQI
23rd Jul 2026609 PMAQI
23rd Jul 20266910 PMAQI
23rd Jul 20267411 PMAQI
24th Jul 20267412 AMAQI
24th Jul 2026721 AMAQI
24th Jul 2026722 AMAQI
24th Jul 2026733 AMAQI
24th Jul 2026684 AMAQI

24°C18/32°C

24th Jul 2026495 AMAQI
24th Jul 2026316 AMAQI
24th Jul 2026277 AMAQI
24th Jul 2026238 AMAQI
24th Jul 2026319 AMAQI
24th Jul 20262910 AMAQI
24th Jul 20262711 AMAQI
24th Jul 20263112 PMAQI
24th Jul 2026331 PMAQI
24th Jul 2026362 PMAQI
24th Jul 2026333 PMAQI
24th Jul 2026344 PMAQI
24th Jul 2026365 PMAQI
24th Jul 2026386 PMAQI
24th Jul 2026497 PMAQI
24th Jul 2026568 PMAQI
24th Jul 2026559 PMAQI
24th Jul 20265310 PMAQI
24th Jul 20265711 PMAQI
25th Jul 20266012 AMAQI
25th Jul 2026621 AMAQI
25th Jul 2026552 AMAQI
25th Jul 2026553 AMAQI
25th Jul 2026574 AMAQI

26°C23/31°C

25th Jul 2026585 AMAQI
25th Jul 2026596 AMAQI
25th Jul 2026627 AMAQI
25th Jul 2026678 AMAQI
25th Jul 2026739 AMAQI
25th Jul 20267410 AMAQI
25th Jul 20267411 AMAQI
25th Jul 20266712 PMAQI
25th Jul 2026661 PMAQI
25th Jul 2026672 PMAQI
25th Jul 2026713 PMAQI
25th Jul 2026674 PMAQI
25th Jul 2026645 PMAQI
25th Jul 2026656 PMAQI
25th Jul 2026707 PMAQI
25th Jul 2026728 PMAQI
25th Jul 2026769 PMAQI
25th Jul 20267110 PMAQI
25th Jul 20267111 PMAQI
26th Jul 20267812 AMAQI
26th Jul 2026781 AMAQI
26th Jul 2026822 AMAQI
26th Jul 2026833 AMAQI
26th Jul 2026824 AMAQI

27°C22/32°C

26th Jul 2026855 AMAQI
26th Jul 2026826 AMAQI
26th Jul 2026807 AMAQI
26th Jul 2026798 AMAQI
26th Jul 2026789 AMAQI
26th Jul 20267310 AMAQI
26th Jul 20266811 AMAQI
26th Jul 20266412 PMAQI
26th Jul 2026601 PMAQI
26th Jul 2026562 PMAQI
26th Jul 2026563 PMAQI
26th Jul 2026534 PMAQI
26th Jul 2026515 PMAQI
26th Jul 2026466 PMAQI
26th Jul 2026407 PMAQI
26th Jul 2026428 PMAQI
26th Jul 2026539 PMAQI
26th Jul 20265710 PMAQI
26th Jul 20265611 PMAQI
27th Jul 20265512 AMAQI
27th Jul 2026571 AMAQI
27th Jul 2026622 AMAQI
27th Jul 2026463 AMAQI
27th Jul 2026364 AMAQI

26°C22/31°C

27th Jul 2026365 AMAQI
27th Jul 2026316 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026238 AMAQI
27th Jul 2026279 AMAQI
27th Jul 20263410 AMAQI
27th Jul 20263311 AMAQI
27th Jul 20262712 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026312 PMAQI
27th Jul 2026383 PMAQI
27th Jul 2026334 PMAQI
27th Jul 2026385 PMAQI
27th Jul 2026406 PMAQI
27th Jul 2026407 PMAQI
27th Jul 2026388 PMAQI
27th Jul 2026369 PMAQI
27th Jul 20264210 PMAQI
27th Jul 20264411 PMAQI
28th Jul 20264612 AMAQI
28th Jul 2026421 AMAQI
28th Jul 2026422 AMAQI
28th Jul 2026403 AMAQI
28th Jul 2026424 AMAQI

25°C21/30°C

28th Jul 2026465 AMAQI
28th Jul 2026506 AMAQI
28th Jul 2026557 AMAQI
28th Jul 2026658 AMAQI
28th Jul 2026689 AMAQI
28th Jul 20267610 AMAQI
28th Jul 20266411 AMAQI
28th Jul 20264812 PMAQI
28th Jul 2026481 PMAQI
28th Jul 2026492 PMAQI
28th Jul 2026463 PMAQI
28th Jul 2026404 PMAQI
28th Jul 2026315 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026347 PMAQI
28th Jul 2026448 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20265410 PMAQI
28th Jul 20265511 PMAQI
29th Jul 20265612 AMAQI
29th Jul 2026561 AMAQI
29th Jul 2026582 AMAQI
29th Jul 2026643 AMAQI
29th Jul 2026644 AMAQI

25°C21/29°C

29th Jul 2026605 AMAQI
29th Jul 2026606 AMAQI
29th Jul 2026727 AMAQI
29th Jul 2026698 AMAQI
29th Jul 2026699 AMAQI
29th Jul 20267410 AMAQI
29th Jul 20265811 AMAQI
29th Jul 20264512 PMAQI
29th Jul 2026271 PMAQI
29th Jul 2026312 PMAQI
29th Jul 2026363 PMAQI
29th Jul 2026334 PMAQI
29th Jul 2026315 PMAQI
29th Jul 2026386 PMAQI
29th Jul 2026387 PMAQI
29th Jul 2026388 PMAQI
29th Jul 2026409 PMAQI
29th Jul 20264010 PMAQI
29th Jul 20265111 PMAQI
30th Jul 20265412 AMAQI
30th Jul 2026541 AMAQI
30th Jul 2026532 AMAQI
30th Jul 2026553 AMAQI
30th Jul 2026604 AMAQI

25°C21/29°C

30th Jul 2026535 AMAQI
30th Jul 2026556 AMAQI
30th Jul 2026557 AMAQI
30th Jul 2026588 AMAQI
30th Jul 2026649 AMAQI
30th Jul 20266210 AMAQI
30th Jul 20264811 AMAQI
30th Jul 20263612 PMAQI
30th Jul 2026341 PMAQI
30th Jul 2026292 PMAQI
30th Jul 2026253 PMAQI
30th Jul 2026234 PMAQI
30th Jul 2026235 PMAQI
30th Jul 2026386 PMAQI
30th Jul 2026407 PMAQI
30th Jul 2026408 PMAQI
30th Jul 2026219 PMAQI
30th Jul 20262510 PMAQI
30th Jul 20262511 PMAQI
31st Jul 20263112 AMAQI
31st Jul 2026341 AMAQI
31st Jul 2026312 AMAQI
31st Jul 2026233 AMAQI
31st Jul 2026254 AMAQI

27°C22/31°C

31st Jul 2026255 AMAQI
31st Jul 2026256 AMAQI
31st Jul 2026257 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026229 AMAQI
31st Jul 20262710 AMAQI
31st Jul 20262711 AMAQI
31st Jul 20262112 PMAQI
31st Jul 2026251 PMAQI
31st Jul 2026212 PMAQI
31st Jul 2026253 PMAQI
31st Jul 2026274 PMAQI
31st Jul 2026275 PMAQI
31st Jul 2026256 PMAQI
31st Jul 2026277 PMAQI
31st Jul 2026278 PMAQI
31st Jul 2026299 PMAQI
31st Jul 20263110 PMAQI
31st Jul 20262911 PMAQI
1st Aug 20262512 AMAQI
1st Aug 2026231 AMAQI
1st Aug 2026212 AMAQI
1st Aug 2026253 AMAQI
1st Aug 2026234 AMAQI

25°C22/30°C

1st Aug 2026225 AMAQI
1st Aug 2026236 AMAQI
1st Aug 2026257 AMAQI
1st Aug 2026348 AMAQI
1st Aug 2026389 AMAQI
1st Aug 20264610 AMAQI
1st Aug 20264811 AMAQI
1st Aug 20264212 PMAQI
1st Aug 2026381 PMAQI
1st Aug 2026362 PMAQI
1st Aug 2026383 PMAQI
1st Aug 2026364 PMAQI
1st Aug 2026385 PMAQI
1st Aug 2026406 PMAQI
1st Aug 2026427 PMAQI
1st Aug 2026648 PMAQI
1st Aug 2026469 PMAQI
1st Aug 20265110 PMAQI
1st Aug 20264011 PMAQI
2nd Aug 20265712 AMAQI
2nd Aug 2026591 AMAQI
2nd Aug 2026652 AMAQI
2nd Aug 2026623 AMAQI
2nd Aug 2026564 AMAQI

25°C21/31°C

2nd Aug 2026505 AMAQI
2nd Aug 2026386 AMAQI
2nd Aug 2026367 AMAQI
2nd Aug 2026318 AMAQI
2nd Aug 2026319 AMAQI
2nd Aug 20263110 AMAQI
2nd Aug 20263611 AMAQI
2nd Aug 20264012 PMAQI
2nd Aug 2026361 PMAQI
2nd Aug 2026312 PMAQI
2nd Aug 2026333 PMAQI
2nd Aug 2026314 PMAQI
2nd Aug 2026385 PMAQI
2nd Aug 2026236 PMAQI
2nd Aug 2026237 PMAQI
2nd Aug 2026218 PMAQI
2nd Aug 2026259 PMAQI
2nd Aug 20262510 PMAQI
2nd Aug 20262511 PMAQI
3rd Aug 20262912 AMAQI
3rd Aug 2026271 AMAQI
3rd Aug 2026212 AMAQI
3rd Aug 2026253 AMAQI
3rd Aug 2026234 AMAQI

21°C17/24°C

3rd Aug 2026275 AMAQI
3rd Aug 2026236 AMAQI
3rd Aug 2026297 AMAQI
3rd Aug 2026318 AMAQI
3rd Aug 2026299 AMAQI
3rd Aug 20263410 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20263112 PMAQI
3rd Aug 2026251 PMAQI
3rd Aug 2026252 PMAQI
3rd Aug 2026273 PMAQI
3rd Aug 2026344 PMAQI
3rd Aug 2026335 PMAQI
3rd Aug 2026316 PMAQI
3rd Aug 2026257 PMAQI
3rd Aug 2026238 PMAQI
3rd Aug 2026239 PMAQI
3rd Aug 20262610 PMAQI
3rd Aug 20262911 PMAQI
4th Aug 20264012 AMAQI
4th Aug 2026461 AMAQI
4th Aug 2026422 AMAQI
4th Aug 2026363 AMAQI
4th Aug 2026404 AMAQI

20°C17/24°C

4th Aug 2026315 AMAQI
4th Aug 2026266 AMAQI
4th Aug 2026247 AMAQI
4th Aug 2026368 AMAQI
4th Aug 2026509 AMAQI
4th Aug 20265810 AMAQI
4th Aug 20264411 AMAQI
4th Aug 20262912 PMAQI
4th Aug 2026291 PMAQI
4th Aug 2026252 PMAQI
4th Aug 2026233 PMAQI
4th Aug 2026294 PMAQI
4th Aug 2026235 PMAQI
4th Aug 2026296 PMAQI
4th Aug 2026267 PMAQI
4th Aug 2026448 PMAQI
4th Aug 2026409 PMAQI
4th Aug 20262310 PMAQI
4th Aug 20263111 PMAQI
5th Aug 20262812 AMAQI
5th Aug 2026311 AMAQI
5th Aug 2026272 AMAQI
5th Aug 2026263 AMAQI
5th Aug 2026274 AMAQI

21°C17/26°C

5th Aug 2026235 AMAQI
5th Aug 2026296 AMAQI
5th Aug 2026387 AMAQI
5th Aug 2026288 AMAQI
5th Aug 2026279 AMAQI
5th Aug 20263110 AMAQI
5th Aug 20263111 AMAQI
5th Aug 20263112 PMAQI
5th Aug 2026311 PMAQI
5th Aug 2026252 PMAQI
5th Aug 2026253 PMAQI
5th Aug 2026464 PMAQI
5th Aug 2026195 PMAQI
5th Aug 2026316 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026389 PMAQI
5th Aug 20266210 PMAQI
5th Aug 20265711 PMAQI
6th Aug 20265312 AMAQI
6th Aug 2026491 AMAQI
6th Aug 2026472 AMAQI
6th Aug 2026523 AMAQI
6th Aug 2026384 AMAQI

19°C19/20°C

6th Aug 2026465 AMAQI
6th Aug 2026586 AMAQI
6th Aug 2026467 AMAQI
6th Aug 2026638 AMAQI
6th Aug 2026629 AMAQI
6th Aug 20266610 AMAQI
6th Aug 20266411 AMAQI
6th Aug 20265112 PMAQI
6th Aug 2026641 PMAQI
6th Aug 2026682 PMAQI
6th Aug 2026603 PMAQI
6th Aug 2026544 PMAQI
6th Aug 2026595 PMAQI
6th Aug 2026606 PMAQI
6th Aug 2026677 PMAQI
6th Aug 2026708 PMAQI
6th Aug 2026649 PMAQI
6th Aug 20266610 PMAQI
6th Aug 20267511 PMAQI
7th Aug 20267412 AMAQI
7th Aug 2026641 AMAQI
7th Aug 2026602 AMAQI
7th Aug 2026623 AMAQI
7th Aug 2026674 AMAQI

21°C18/26°C

7th Aug 2026595 AMAQI
7th Aug 2026596 AMAQI
7th Aug 2026647 AMAQI
7th Aug 2026678 AMAQI
7th Aug 2026689 AMAQI
7th Aug 20266810 AMAQI
7th Aug 20266411 AMAQI
7th Aug 20266612 PMAQI
7th Aug 2026621 PMAQI
7th Aug 2026622 PMAQI
7th Aug 2026573 PMAQI
7th Aug 2026544 PMAQI
7th Aug 2026545 PMAQI
7th Aug 2026556 PMAQI
7th Aug 2026527 PMAQI
7th Aug 2026518 PMAQI
7th Aug 2026529 PMAQI
7th Aug 20264810 PMAQI
7th Aug 20264911 PMAQI
8th Aug 20265212 AMAQI
8th Aug 2026501 AMAQI
8th Aug 2026532 AMAQI
8th Aug 2026513 AMAQI
8th Aug 2026514 AMAQI

24°C19/30°C

8th Aug 2026485 AMAQI
8th Aug 2026606 AMAQI
8th Aug 2026597 AMAQI
8th Aug 2026608 AMAQI
8th Aug 2026709 AMAQI
8th Aug 20266610 AMAQI
8th Aug 20265811 AMAQI
8th Aug 20266212 PMAQI
8th Aug 2026601 PMAQI
8th Aug 2026622 PMAQI
8th Aug 2026633 PMAQI
8th Aug 2026624 PMAQI
8th Aug 2026535 PMAQI
8th Aug 2026546 PMAQI
8th Aug 2026587 PMAQI
8th Aug 2026698 PMAQI
8th Aug 2026749 PMAQI
8th Aug 20268310 PMAQI
8th Aug 20268211 PMAQI
9th Aug 20267612 AMAQI
9th Aug 2026731 AMAQI
9th Aug 2026712 AMAQI
9th Aug 2026703 AMAQI
9th Aug 2026804 AMAQI

25°C21/30°C

9th Aug 2026785 AMAQI
9th Aug 2026826 AMAQI
9th Aug 2026767 AMAQI
9th Aug 2026868 AMAQI
9th Aug 2026839 AMAQI
9th Aug 20267810 AMAQI
9th Aug 20267411 AMAQI
9th Aug 20266712 PMAQI
9th Aug 2026601 PMAQI
9th Aug 2026552 PMAQI
9th Aug 2026523 PMAQI
9th Aug 2026544 PMAQI
9th Aug 2026515 PMAQI
9th Aug 2026486 PMAQI
9th Aug 2026487 PMAQI
9th Aug 2026548 PMAQI
9th Aug 2026539 PMAQI
9th Aug 20265710 PMAQI
9th Aug 20266311 PMAQI
10th Aug 20265912 AMAQI
10th Aug 2026561 AMAQI
10th Aug 2026532 AMAQI
10th Aug 2026583 AMAQI
10th Aug 2026584 AMAQI

25°C21/30°C

10th Aug 2026585 AMAQI
10th Aug 2026646 AMAQI
10th Aug 2026667 AMAQI
10th Aug 2026708 AMAQI
10th Aug 2026769 AMAQI
10th Aug 20267610 AMAQI
10th Aug 20266711 AMAQI
10th Aug 20266012 PMAQI
10th Aug 2026561 PMAQI
10th Aug 2026522 PMAQI
10th Aug 2026503 PMAQI
10th Aug 2026444 PMAQI
10th Aug 2026465 PMAQI
10th Aug 2026506 PMAQI
10th Aug 2026507 PMAQI
10th Aug 2026508 PMAQI
10th Aug 2026579 PMAQI
10th Aug 20266410 PMAQI
10th Aug 20267411 PMAQI
11th Aug 20267612 AMAQI
11th Aug 2026781 AMAQI
11th Aug 2026822 AMAQI
11th Aug 2026873 AMAQI
11th Aug 2026824 AMAQI

25°C20/30°C

11th Aug 2026865 AMAQI
11th Aug 2026876 AMAQI
11th Aug 2026927 AMAQI
11th Aug 2026908 AMAQI
11th Aug 2026879 AMAQI
11th Aug 20268510 AMAQI
11th Aug 20267311 AMAQI
11th Aug 20266712 PMAQI
11th Aug 2026521 PMAQI
11th Aug 2026522 PMAQI
11th Aug 2026503 PMAQI
11th Aug 2026464 PMAQI
11th Aug 2026425 PMAQI
11th Aug 2026466 PMAQI
11th Aug 2026467 PMAQI
11th Aug 2026468 PMAQI
11th Aug 2026559 PMAQI
11th Aug 20265910 PMAQI
11th Aug 20265311 PMAQI
12th Aug 20265712 AMAQI
12th Aug 2026581 AMAQI
12th Aug 2026562 AMAQI
12th Aug 2026573 AMAQI
12th Aug 2026444 AMAQI

25°C20/30°C

12th Aug 2026295 AMAQI
12th Aug 2026316 AMAQI
12th Aug 2026277 AMAQI
12th Aug 2026298 AMAQI
12th Aug 2026339 AMAQI
12th Aug 20263810 AMAQI
12th Aug 20263611 AMAQI
12th Aug 20263612 PMAQI
12th Aug 2026421 PMAQI
12th Aug 2026482 PMAQI
12th Aug 2026443 PMAQI
12th Aug 2026464 PMAQI
12th Aug 2026405 PMAQI
12th Aug 2026386 PMAQI
12th Aug 2026367 PMAQI
12th Aug 2026388 PMAQI
12th Aug 2026499 PMAQI
12th Aug 20265010 PMAQI
12th Aug 20265511 PMAQI
13th Aug 20265012 AMAQI
13th Aug 2026361 AMAQI
13th Aug 2026362 AMAQI
13th Aug 2026363 AMAQI
13th Aug 2026364 AMAQI

23°C18/28°C

13th Aug 2026425 AMAQI
13th Aug 2026346 AMAQI
13th Aug 2026337 AMAQI
13th Aug 2026408 AMAQI
13th Aug 2026589 AMAQI
13th Aug 20265310 AMAQI
13th Aug 20264711 AMAQI
13th Aug 20263812 PMAQI
13th Aug 2026331 PMAQI
13th Aug 2026312 PMAQI
13th Aug 2026273 PMAQI
13th Aug 2026254 PMAQI
13th Aug 2026275 PMAQI
13th Aug 2026336 PMAQI
13th Aug 2026277 PMAQI
13th Aug 2026388 PMAQI
13th Aug 2026499 PMAQI
13th Aug 20265110 PMAQI
13th Aug 20264811 PMAQI
14th Aug 20264812 AMAQI
14th Aug 2026561 AMAQI
14th Aug 2026562 AMAQI
14th Aug 2026513 AMAQI
14th Aug 2026524 AMAQI

23°C18/29°C

14th Aug 2026525 AMAQI
14th Aug 2026446 AMAQI
14th Aug 2026367 AMAQI
14th Aug 2026338 AMAQI
14th Aug 2026319 AMAQI
14th Aug 20265810 AMAQI
14th Aug 20266611 AMAQI
14th Aug 20265612 PMAQI
14th Aug 2026541 PMAQI
14th Aug 2026482 PMAQI
14th Aug 2026383 PMAQI
14th Aug 2026384 PMAQI
14th Aug 2026335 PMAQI
14th Aug 2026316 PMAQI
14th Aug 2026317 PMAQI
14th Aug 2026298 PMAQI
14th Aug 2026389 PMAQI
14th Aug 20264910 PMAQI
14th Aug 20266011 PMAQI
15th Aug 20265512 AMAQI
15th Aug 2026581 AMAQI
15th Aug 2026482 AMAQI
15th Aug 2026583 AMAQI
15th Aug 2026564 AMAQI

25°C20/30°C

15th Aug 2026575 AMAQI
15th Aug 2026576 AMAQI
15th Aug 2026557 AMAQI
15th Aug 2026658 AMAQI
15th Aug 2026559 AMAQI
15th Aug 20266610 AMAQI
15th Aug 20266611 AMAQI
15th Aug 20264212 PMAQI
15th Aug 2026361 PMAQI
15th Aug 2026252 PMAQI
15th Aug 2026293 PMAQI
15th Aug 2026254 PMAQI
15th Aug 2026255 PMAQI
15th Aug 2026216 PMAQI
15th Aug 2026257 PMAQI
15th Aug 2026318 PMAQI
15th Aug 2026369 PMAQI
15th Aug 20263610 PMAQI
15th Aug 20263111 PMAQI
16th Aug 20263312 AMAQI
16th Aug 2026271 AMAQI
16th Aug 2026332 AMAQI
16th Aug 2026323 AMAQI
16th Aug 2026254 AMAQI

23°C19/31°C

16th Aug 2026215 AMAQI
16th Aug 2026216 AMAQI
16th Aug 2026257 AMAQI
16th Aug 2026318 AMAQI
16th Aug 2026369 AMAQI
16th Aug 20263310 AMAQI
16th Aug 20262911 AMAQI
16th Aug 20262912 PMAQI
16th Aug 2026331 PMAQI
16th Aug 2026362 PMAQI
16th Aug 2026293 PMAQI
16th Aug 2026274 PMAQI
16th Aug 2026255 PMAQI
16th Aug 2026276 PMAQI
16th Aug 2026277 PMAQI
16th Aug 2026238 PMAQI
16th Aug 2026369 PMAQI
16th Aug 20264810 PMAQI
16th Aug 20265311 PMAQI
17th Aug 20264612 AMAQI
17th Aug 2026461 AMAQI
17th Aug 2026502 AMAQI
17th Aug 2026543 AMAQI
17th Aug 2026554 AMAQI

24°C18/30°C

17th Aug 2026555 AMAQI
17th Aug 2026536 AMAQI
17th Aug 2026537 AMAQI
17th Aug 2026578 AMAQI
17th Aug 2026579 AMAQI
17th Aug 20266210 AMAQI
17th Aug 20265411 AMAQI
17th Aug 20264612 PMAQI
17th Aug 2026501 PMAQI
17th Aug 2026462 PMAQI
17th Aug 2026373 PMAQI
17th Aug 2026334 PMAQI
17th Aug 2026425 PMAQI
17th Aug 2026386 PMAQI
17th Aug 2026407 PMAQI
17th Aug 2026528 PMAQI
17th Aug 2026549 PMAQI
17th Aug 20264210 PMAQI
17th Aug 20264911 PMAQI
18th Aug 20265212 AMAQI
18th Aug 2026441 AMAQI
18th Aug 2026522 AMAQI
18th Aug 2026553 AMAQI
18th Aug 2026504 AMAQI

11°C10/13°C

18th Aug 2026485 AMAQI
5 AM
18th Aug 2026486 AMAQI
18th Aug 2026497 AMAQI
18th Aug 2026518 AMAQI
18th Aug 2026569 AMAQI
18th Aug 20265810 AMAQI
18th Aug 20265911 AMAQI
18th Aug 20265712 PMAQI
12 PM
18th Aug 2026461 PMAQI
18th Aug 2026382 PMAQI
18th Aug 2026383 PMAQI
18th Aug 2026364 PMAQI
18th Aug 2026315 PMAQI
18th Aug 2026406 PMAQI
18th Aug 2026487 PMAQI
7 PM
18th Aug 2026468 PMAQI
18th Aug 2026529 PMAQI
18th Aug 20265710 PMAQI
18th Aug 20265211 PMAQI
12 AM
4 AM

24°C20/30°C

Day time
Avg. Highest Time
10 AM

56AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
2 PM - 5 PM

40AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 56), while the lowest AQI was between 2 PM to 5 PM (Avg. 40).
Night time
Avg. Highest Time
12 AM - 4 AM

51AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM

44AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 51), while the lowest AQI was between 8 PM to 8 PM (Avg. 44).

2026 Days Vs Air Quality

Yanchuan County Environmental Protection Bureau, Yanan, Shaanxi, China

2026

24%

56

59%

135

16%

37

0.8%

2

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

Good
56 Days
Moderate
135 Days
Poor
37 Days
Unhealthy
2 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

Yanchuan 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
127AQI (US)
2nd January 2026
105AQI (US)
3rd January 2026
105AQI (US)
4th January 2026
118AQI (US)
5th January 2026
94AQI (US)
6th January 2026
80AQI (US)
7th January 2026
96AQI (US)
8th January 2026
88AQI (US)
9th January 2026
84AQI (US)
10th January 2026
80AQI (US)
11th January 2026
69AQI (US)
12th January 2026
86AQI (US)
13th January 2026
91AQI (US)
14th January 2026
104AQI (US)
15th January 2026
110AQI (US)
16th January 2026
90AQI (US)
17th January 2026
125AQI (US)
18th January 2026
96AQI (US)
19th January 2026
38AQI (US)
20th January 2026
52AQI (US)
21st January 2026
75AQI (US)
22nd January 2026
108AQI (US)
23rd January 2026
114AQI (US)
24th January 2026
117AQI (US)
25th January 2026
148AQI (US)
26th January 2026
119AQI (US)
27th January 2026
114AQI (US)
28th January 2026
122AQI (US)
29th January 2026
142AQI (US)
30th January 2026
154AQI (US)
31st January 2026
148AQI (US)
1st February 2026
124AQI (US)
2nd February 2026
78AQI (US)
3rd February 2026
94AQI (US)
4th February 2026
108AQI (US)
5th February 2026
103AQI (US)
6th February 2026
85AQI (US)
7th February 2026
47AQI (US)
8th February 2026
62AQI (US)
9th February 2026
88AQI (US)
10th February 2026
88AQI (US)
11th February 2026
98AQI (US)
12th February 2026
94AQI (US)
13th February 2026
94AQI (US)
14th February 2026
91AQI (US)
15th February 2026
60AQI (US)
16th February 2026
73AQI (US)
17th February 2026
118AQI (US)
18th February 2026
83AQI (US)
19th February 2026
78AQI (US)
20th February 2026
79AQI (US)
21st February 2026
85AQI (US)
22nd February 2026
126AQI (US)
23rd February 2026
147AQI (US)
24th February 2026
136AQI (US)
25th February 2026
126AQI (US)
26th February 2026
122AQI (US)
27th February 2026
134AQI (US)
28th February 2026
84AQI (US)
1st March 2026
71AQI (US)
2nd March 2026
51AQI (US)
3rd March 2026
71AQI (US)
4th March 2026
124AQI (US)
5th March 2026
80AQI (US)
6th March 2026
49AQI (US)
7th March 2026
85AQI (US)
8th March 2026
129AQI (US)
9th March 2026
110AQI (US)
10th March 2026
122AQI (US)
11th March 2026
75AQI (US)
12th March 2026
119AQI (US)
13th March 2026
153AQI (US)
14th March 2026
110AQI (US)
15th March 2026
73AQI (US)
16th March 2026
84AQI (US)
17th March 2026
106AQI (US)
18th March 2026
68AQI (US)
19th March 2026
75AQI (US)
20th March 2026
86AQI (US)
21st March 2026
104AQI (US)
22nd March 2026
86AQI (US)
23rd March 2026
97AQI (US)
24th March 2026
108AQI (US)
25th March 2026
91AQI (US)
26th March 2026
94AQI (US)
27th March 2026
93AQI (US)
28th March 2026
86AQI (US)
29th March 2026
74AQI (US)
30th March 2026
80AQI (US)
31st March 2026
62AQI (US)
1st April 2026
62AQI (US)
2nd April 2026
71AQI (US)
3rd April 2026
79AQI (US)
4th April 2026
68AQI (US)
5th April 2026
82AQI (US)
6th April 2026
65AQI (US)
7th April 2026
69AQI (US)
8th April 2026
105AQI (US)
9th April 2026
82AQI (US)
10th April 2026
60AQI (US)
11th April 2026
61AQI (US)
12th April 2026
64AQI (US)
13th April 2026
74AQI (US)
14th April 2026
77AQI (US)
15th April 2026
81AQI (US)
16th April 2026
59AQI (US)
17th April 2026
55AQI (US)
18th April 2026
64AQI (US)
19th April 2026
76AQI (US)
20th April 2026
71AQI (US)
21st April 2026
67AQI (US)
22nd April 2026
69AQI (US)
23rd April 2026
68AQI (US)
24th April 2026
75AQI (US)
25th April 2026
73AQI (US)
26th April 2026
79AQI (US)
27th April 2026
76AQI (US)
28th April 2026
63AQI (US)
29th April 2026
62AQI (US)
30th April 2026
75AQI (US)
1st May 2026
73AQI (US)
2nd May 2026
54AQI (US)
3rd May 2026
55AQI (US)
4th May 2026
59AQI (US)
5th May 2026
64AQI (US)
6th May 2026
77AQI (US)
7th May 2026
58AQI (US)
8th May 2026
65AQI (US)
9th May 2026
65AQI (US)
10th May 2026
89AQI (US)
11th May 2026
96AQI (US)
12th May 2026
105AQI (US)
13th May 2026
99AQI (US)
14th May 2026
70AQI (US)
15th May 2026
85AQI (US)
16th May 2026
77AQI (US)
17th May 2026
78AQI (US)
18th May 2026
76AQI (US)
19th May 2026
76AQI (US)
20th May 2026
87AQI (US)
21st May 2026
98AQI (US)
22nd May 2026
100AQI (US)
23rd May 2026
91AQI (US)
24th May 2026
83AQI (US)
25th May 2026
83AQI (US)
26th May 2026
57AQI (US)
27th May 2026
64AQI (US)
28th May 2026
47AQI (US)
29th May 2026
46AQI (US)
30th May 2026
46AQI (US)
31st May 2026
58AQI (US)
1st June 2026
68AQI (US)
2nd June 2026
67AQI (US)
3rd June 2026
71AQI (US)
4th June 2026
52AQI (US)
5th June 2026
56AQI (US)
6th June 2026
42AQI (US)
7th June 2026
36AQI (US)
8th June 2026
46AQI (US)
9th June 2026
33AQI (US)
10th June 2026
31AQI (US)
11th June 2026
40AQI (US)
12th June 2026
52AQI (US)
13th June 2026
39AQI (US)
14th June 2026
31AQI (US)
15th June 2026
52AQI (US)
16th June 2026
67AQI (US)
17th June 2026
70AQI (US)
18th June 2026
68AQI (US)
19th June 2026
40AQI (US)
20th June 2026
37AQI (US)
21st June 2026
44AQI (US)
22nd June 2026
35AQI (US)
23rd June 2026
38AQI (US)
24th June 2026
52AQI (US)
25th June 2026
50AQI (US)
26th June 2026
43AQI (US)
27th June 2026
60AQI (US)
28th June 2026
53AQI (US)
29th June 2026
58AQI (US)
30th June 2026
49AQI (US)
1st July 2026
34AQI (US)
2nd July 2026
45AQI (US)
3rd July 2026
53AQI (US)
4th July 2026
41AQI (US)
5th July 2026
47AQI (US)
6th July 2026
44AQI (US)
7th July 2026
45AQI (US)
8th July 2026
58AQI (US)
9th July 2026
58AQI (US)
10th July 2026
65AQI (US)
11th July 2026
25AQI (US)
12th July 2026
37AQI (US)
13th July 2026
45AQI (US)
14th July 2026
50AQI (US)
15th July 2026
48AQI (US)
16th July 2026
42AQI (US)
17th July 2026
30AQI (US)
18th July 2026
50AQI (US)
19th July 2026
63AQI (US)
20th July 2026
36AQI (US)
21st July 2026
57AQI (US)
22nd July 2026
46AQI (US)
23rd July 2026
54AQI (US)
24th July 2026
45AQI (US)
25th July 2026
66AQI (US)
26th July 2026
66AQI (US)
27th July 2026
38AQI (US)
28th July 2026
48AQI (US)
29th July 2026
50AQI (US)
30th July 2026
43AQI (US)
31st July 2026
26AQI (US)
1st August 2026
36AQI (US)
2nd August 2026
38AQI (US)
3rd August 2026
28AQI (US)
4th August 2026
34AQI (US)
5th August 2026
32AQI (US)
6th August 2026
58AQI (US)
7th August 2026
60AQI (US)
8th August 2026
61AQI (US)
9th August 2026
66AQI (US)
10th August 2026
59AQI (US)
11th August 2026
67AQI (US)
12th August 2026
42AQI (US)
13th August 2026
39AQI (US)
14th August 2026
45AQI (US)
15th August 2026
44AQI (US)
16th August 2026
31AQI (US)
17th August 2026
49AQI (US)
18th August 2026
48AQI (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

103AQI (US)

97AQI (US)

91AQI (US)

71AQI (US)

74AQI (US)

49AQI (US)

47AQI (US)

47AQI (US)

No. of days

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

202674AQI (US)

1
13
16
1
1
17
10
1
20
9
1
29
1
3
27
1
16
14
22
9
12
6
56
135
37
2

Highest AQI (US) recorded in

January

103AQI (US)

Lowest AQI (US) recorded in

August

47AQI (US)

202586AQI (US)

15
14
2
20
7
1
12
12
2
4
1
14
14
1
1
23
5
2
1
1
29
5
26
6
25
7
23
2
28
1
1
19
9
1
13
18
22
247
80
9
6
1

Highest AQI (US) recorded in

March

133AQI (US)

Lowest AQI (US) recorded in

September

55AQI (US)

202482AQI (US)

2
12
12
5
7
11
9
2
21
8
2
29
1
30
1
29
1
6
25
13
17
5
23
2
6
24
1
4
18
8
26
5
36
261
49
17
2

Highest AQI (US) recorded in

February

137AQI (US)

Lowest AQI (US) recorded in

August

54AQI (US)

202392AQI (US)

2
7
15
6
8
8
6
1
1
1
4
1
1
3
4
2
12
3
23
4
14
1
1
1
1
10
5
17
11
3
15
102
41
17
1

Highest AQI (US) recorded in

March

197AQI (US)

Lowest AQI (US) recorded in

September

59AQI (US)

202284AQI (US)

13
7
10
1
10
10
1
1
15
11
2
2
1
20
8
1
5
23
3
5
25
12
12
1
13
15
8
16
7
2
15
8
5
2
22
7
51
186
61
18
3

Highest AQI (US) recorded in

January

119AQI (US)

Lowest AQI (US) recorded in

August

47AQI (US)

202189AQI (US)

1
16
8
3
2
1
15
8
2
13
9
2
2
4
1
22
4
1
1
4
18
3
2
1
4
15
11
15
5
25
10
18
2
5
22
3
1
21
7
2
5
18
8
46
218
52
12
6
6

Highest AQI (US) recorded in

March

171AQI (US)

Lowest AQI (US) recorded in

July

52AQI (US)

202084AQI (US)

10
2
1
18
3
15
2
1
3
20
7
3
24
4
5
17
5
2
5
20
5
2
20
8
1
2
12
11
4
2
16
10
22
172
57
8
1

Highest AQI (US) recorded in

November

102AQI (US)

Lowest AQI (US) recorded in

April

73AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
92AQI (US)
Least Polluted Year Recorded
2026(Avg.)
74AQI (US)

Yanchuan County Environmental Protection Bureau's annual 2026 AQI (US) (74) shows an average percentage change of -13.9% (improved AQI (US)) compared to previous years: 2020 (84), 2021 (89), 2022 (84), 2023 (92), 2024 (82), 2025 (86).