Hziyan, Xining, Qinghai, 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+
November Air Quality Analysis
Hziyan, Xining, Qinghai, China
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
22nd Nov 2024
121AQILowest AQI recorded on
17th Nov 2025
26AQISame Day Analysis (21st November ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 56 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 21st Nov - 22nd Nov 2025
Hziyan, Xining, Qinghai, China
AQI
Day
Night
.
7 AM21st Nov 2025
6 PM
6 AM22nd Nov 2025
Day time
Avg. Highest Time
1PM21st Nov
57AQI
Avg. Lowest Time
6PM21st Nov
39AQI
Night time
Avg. Highest Time
7AM21st Nov
54AQI
Avg. Lowest Time
9PM21st Nov
33AQI
In the last 24 hours,
Hziyan's AQI reached its highest point of 57 at 1 PM during the Day, while the lowest point, 33, was recorded at 9 PM during the Night between 21st Nov and 22nd Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Hziyan, Xining, Qinghai, China
OctNov
23rd - 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 - 19th19th - 20th20th - 21st21st - 22nd22nd
Day
Night
23rd Oct 2025877 AMAQI
23rd Oct 20251068 AMAQI
23rd Oct 20251099 AMAQI
23rd Oct 202510510 AMAQI
23rd Oct 202510611 AMAQI
23rd Oct 202510712 PMAQI
23rd Oct 20251021 PMAQI
23rd Oct 2025852 PMAQI
23rd Oct 2025733 PMAQI
23rd Oct 2025704 PMAQI
23rd Oct 2025685 PMAQI
23rd Oct 2025686 PMAQI
23rd Oct 2025717 PMAQI
23rd Oct 2025758 PMAQI
23rd Oct 2025749 PMAQI
23rd Oct 20258210 PMAQI
23rd Oct 20258711 PMAQI
24th Oct 20257912 AMAQI
24th Oct 2025791 AMAQI
24th Oct 20251022 AMAQI
24th Oct 2025983 AMAQI
24th Oct 2025954 AMAQI
24th Oct 2025765 AMAQI
24th Oct 2025786 AMAQI
3°C1/5°C
24th Oct 2025857 AMAQI
24th Oct 2025868 AMAQI
24th Oct 2025839 AMAQI
24th Oct 20257810 AMAQI
24th Oct 20257811 AMAQI
24th Oct 20258012 PMAQI
24th Oct 2025901 PMAQI
24th Oct 2025962 PMAQI
24th Oct 20251063 PMAQI
24th Oct 2025964 PMAQI
24th Oct 2025905 PMAQI
24th Oct 2025866 PMAQI
24th Oct 2025817 PMAQI
24th Oct 2025858 PMAQI
24th Oct 2025789 PMAQI
24th Oct 20257010 PMAQI
24th Oct 20257611 PMAQI
25th Oct 20258412 AMAQI
25th Oct 2025851 AMAQI
25th Oct 2025822 AMAQI
25th Oct 2025813 AMAQI
25th Oct 2025844 AMAQI
25th Oct 2025845 AMAQI
25th Oct 2025836 AMAQI
2°C-1/5°C
25th Oct 2025887 AMAQI
25th Oct 2025898 AMAQI
25th Oct 2025899 AMAQI
25th Oct 20259210 AMAQI
25th Oct 20259211 AMAQI
25th Oct 20258912 PMAQI
25th Oct 2025831 PMAQI
25th Oct 2025742 PMAQI
25th Oct 2025713 PMAQI
25th Oct 2025704 PMAQI
25th Oct 2025755 PMAQI
25th Oct 2025726 PMAQI
25th Oct 2025807 PMAQI
25th Oct 2025828 PMAQI
25th Oct 2025829 PMAQI
25th Oct 20258010 PMAQI
25th Oct 20257411 PMAQI
26th Oct 20257712 AMAQI
26th Oct 2025771 AMAQI
26th Oct 2025792 AMAQI
26th Oct 2025783 AMAQI
26th Oct 2025724 AMAQI
26th Oct 2025725 AMAQI
26th Oct 2025706 AMAQI
2°C-2/6°C
26th Oct 2025747 AMAQI
26th Oct 2025748 AMAQI
26th Oct 2025759 AMAQI
26th Oct 20257310 AMAQI
26th Oct 20256811 AMAQI
26th Oct 20256812 PMAQI
26th Oct 2025681 PMAQI
26th Oct 2025662 PMAQI
26th Oct 2025593 PMAQI
26th Oct 2025624 PMAQI
26th Oct 2025655 PMAQI
26th Oct 2025676 PMAQI
26th Oct 2025707 PMAQI
26th Oct 2025738 PMAQI
26th Oct 2025719 PMAQI
26th Oct 20257210 PMAQI
26th Oct 20257611 PMAQI
27th Oct 20258212 AMAQI
27th Oct 2025941 AMAQI
27th Oct 20251062 AMAQI
27th Oct 20251103 AMAQI
27th Oct 20251044 AMAQI
27th Oct 20251035 AMAQI
27th Oct 20251036 AMAQI
1°C-2/6°C
27th Oct 2025987 AMAQI
27th Oct 2025978 AMAQI
27th Oct 2025999 AMAQI
27th Oct 202510010 AMAQI
27th Oct 20259411 AMAQI
27th Oct 20259412 PMAQI
27th Oct 2025861 PMAQI
27th Oct 2025812 PMAQI
27th Oct 2025783 PMAQI
27th Oct 2025764 PMAQI
27th Oct 2025705 PMAQI
27th Oct 2025636 PMAQI
27th Oct 2025597 PMAQI
27th Oct 2025568 PMAQI
27th Oct 2025579 PMAQI
27th Oct 20255910 PMAQI
27th Oct 20257811 PMAQI
28th Oct 202510312 AMAQI
28th Oct 20251091 AMAQI
28th Oct 20251002 AMAQI
28th Oct 20251003 AMAQI
28th Oct 20251004 AMAQI
28th Oct 2025985 AMAQI
28th Oct 20251006 AMAQI
2°C-2/8°C
28th Oct 20251017 AMAQI
28th Oct 20251058 AMAQI
28th Oct 20251079 AMAQI
28th Oct 202511110 AMAQI
28th Oct 202511011 AMAQI
28th Oct 20259912 PMAQI
28th Oct 2025901 PMAQI
28th Oct 2025802 PMAQI
28th Oct 2025773 PMAQI
28th Oct 2025734 PMAQI
28th Oct 2025695 PMAQI
28th Oct 2025706 PMAQI
28th Oct 2025727 PMAQI
28th Oct 2025758 PMAQI
28th Oct 2025769 PMAQI
28th Oct 20258910 PMAQI
28th Oct 20259611 PMAQI
29th Oct 202511512 AMAQI
29th Oct 20251131 AMAQI
29th Oct 20251152 AMAQI
29th Oct 20251263 AMAQI
29th Oct 20251224 AMAQI
29th Oct 20251245 AMAQI
29th Oct 20251186 AMAQI
3°C-1/7°C
29th Oct 20251167 AMAQI
29th Oct 20251118 AMAQI
29th Oct 20251139 AMAQI
29th Oct 202511810 AMAQI
29th Oct 202512011 AMAQI
29th Oct 202511912 PMAQI
29th Oct 20251151 PMAQI
29th Oct 20251042 PMAQI
29th Oct 20251033 PMAQI
29th Oct 2025954 PMAQI
29th Oct 2025825 PMAQI
29th Oct 2025826 PMAQI
29th Oct 2025827 PMAQI
29th Oct 2025818 PMAQI
29th Oct 2025829 PMAQI
29th Oct 20258910 PMAQI
29th Oct 20258311 PMAQI
30th Oct 20258612 AMAQI
30th Oct 2025921 AMAQI
30th Oct 2025942 AMAQI
30th Oct 2025893 AMAQI
30th Oct 2025904 AMAQI
30th Oct 2025925 AMAQI
30th Oct 2025976 AMAQI
3°C0/7°C
30th Oct 20251027 AMAQI
30th Oct 20251058 AMAQI
30th Oct 20251139 AMAQI
30th Oct 202511010 AMAQI
30th Oct 202511511 AMAQI
30th Oct 202511512 PMAQI
30th Oct 20251121 PMAQI
30th Oct 20251042 PMAQI
30th Oct 20251023 PMAQI
30th Oct 2025844 PMAQI
30th Oct 2025835 PMAQI
30th Oct 2025766 PMAQI
30th Oct 2025737 PMAQI
30th Oct 2025788 PMAQI
30th Oct 2025849 PMAQI
30th Oct 20259110 PMAQI
30th Oct 20258811 PMAQI
31st Oct 20258712 AMAQI
31st Oct 2025881 AMAQI
31st Oct 2025832 AMAQI
31st Oct 2025893 AMAQI
31st Oct 2025864 AMAQI
31st Oct 2025825 AMAQI
31st Oct 2025796 AMAQI
3°C-1/9°C
31st Oct 2025797 AMAQI
31st Oct 2025828 AMAQI
31st Oct 2025869 AMAQI
31st Oct 20258810 AMAQI
31st Oct 20259111 AMAQI
31st Oct 20259712 PMAQI
31st Oct 20251001 PMAQI
31st Oct 2025962 PMAQI
31st Oct 2025903 PMAQI
31st Oct 2025874 PMAQI
31st Oct 2025785 PMAQI
31st Oct 2025756 PMAQI
31st Oct 2025777 PMAQI
31st Oct 2025858 PMAQI
31st Oct 2025879 PMAQI
31st Oct 20259610 PMAQI
31st Oct 20259711 PMAQI
1st Nov 202510012 AMAQI
1st Nov 20251091 AMAQI
1st Nov 20251112 AMAQI
1st Nov 20251063 AMAQI
1st Nov 20251064 AMAQI
1st Nov 20251185 AMAQI
1st Nov 20251146 AMAQI
2°C-2/6°C
1st Nov 20251297 AMAQI
1st Nov 20251438 AMAQI
1st Nov 20251309 AMAQI
1st Nov 202512510 AMAQI
1st Nov 202512711 AMAQI
1st Nov 202513312 PMAQI
1st Nov 20251221 PMAQI
1st Nov 20251162 PMAQI
1st Nov 20251023 PMAQI
1st Nov 2025934 PMAQI
1st Nov 2025865 PMAQI
1st Nov 2025846 PMAQI
1st Nov 2025857 PMAQI
1st Nov 2025888 PMAQI
1st Nov 2025949 PMAQI
1st Nov 20259310 PMAQI
1st Nov 20259911 PMAQI
2nd Nov 202510712 AMAQI
2nd Nov 20251091 AMAQI
2nd Nov 20251142 AMAQI
2nd Nov 20251083 AMAQI
2nd Nov 20251164 AMAQI
2nd Nov 20251195 AMAQI
2nd Nov 20251126 AMAQI
2°C-2/7°C
2nd Nov 20251037 AMAQI
2nd Nov 2025918 AMAQI
2nd Nov 2025929 AMAQI
2nd Nov 20259110 AMAQI
2nd Nov 20259111 AMAQI
2nd Nov 20258612 PMAQI
2nd Nov 2025891 PMAQI
2nd Nov 2025912 PMAQI
2nd Nov 2025643 PMAQI
2nd Nov 2025384 PMAQI
2nd Nov 2025395 PMAQI
2nd Nov 2025366 PMAQI
2nd Nov 2025347 PMAQI
2nd Nov 2025378 PMAQI
2nd Nov 2025409 PMAQI
2nd Nov 20253710 PMAQI
2nd Nov 20254411 PMAQI
3rd Nov 20254912 AMAQI
3rd Nov 2025531 AMAQI
3rd Nov 2025542 AMAQI
3rd Nov 2025553 AMAQI
3rd Nov 2025544 AMAQI
3rd Nov 2025535 AMAQI
3rd Nov 2025536 AMAQI
2°C-2/6°C
3rd Nov 2025487 AMAQI
3rd Nov 2025478 AMAQI
3rd Nov 2025489 AMAQI
3rd Nov 20255010 AMAQI
3rd Nov 20255211 AMAQI
3rd Nov 20255312 PMAQI
3rd Nov 2025531 PMAQI
3rd Nov 2025522 PMAQI
3rd Nov 2025493 PMAQI
3rd Nov 2025394 PMAQI
3rd Nov 2025405 PMAQI
3rd Nov 2025406 PMAQI
3rd Nov 2025387 PMAQI
3rd Nov 2025428 PMAQI
3rd Nov 2025369 PMAQI
3rd Nov 20253810 PMAQI
3rd Nov 20255011 PMAQI
4th Nov 20255312 AMAQI
4th Nov 2025551 AMAQI
4th Nov 2025552 AMAQI
4th Nov 2025573 AMAQI
4th Nov 2025594 AMAQI
4th Nov 2025595 AMAQI
4th Nov 2025606 AMAQI
2°C-1/6°C
4th Nov 2025587 AMAQI
4th Nov 2025588 AMAQI
4th Nov 2025579 AMAQI
4th Nov 20255710 AMAQI
4th Nov 20255711 AMAQI
4th Nov 20255712 PMAQI
4th Nov 2025581 PMAQI
4th Nov 2025542 PMAQI
4th Nov 2025533 PMAQI
4th Nov 2025474 PMAQI
4th Nov 2025485 PMAQI
4th Nov 2025456 PMAQI
4th Nov 2025467 PMAQI
4th Nov 2025458 PMAQI
4th Nov 2025469 PMAQI
4th Nov 20255010 PMAQI
4th Nov 20255111 PMAQI
5th Nov 20255212 AMAQI
5th Nov 2025501 AMAQI
5th Nov 2025542 AMAQI
5th Nov 2025533 AMAQI
5th Nov 2025514 AMAQI
5th Nov 2025565 AMAQI
5th Nov 2025566 AMAQI
2°C-2/8°C
5th Nov 2025587 AMAQI
5th Nov 2025598 AMAQI
5th Nov 2025589 AMAQI
5th Nov 20255710 AMAQI
5th Nov 20255611 AMAQI
5th Nov 20256012 PMAQI
5th Nov 2025601 PMAQI
5th Nov 2025642 PMAQI
5th Nov 2025603 PMAQI
5th Nov 2025584 PMAQI
5th Nov 2025415 PMAQI
5th Nov 2025446 PMAQI
5th Nov 2025467 PMAQI
5th Nov 2025518 PMAQI
5th Nov 2025519 PMAQI
5th Nov 20254410 PMAQI
5th Nov 20253611 PMAQI
6th Nov 20253712 AMAQI
6th Nov 2025331 AMAQI
6th Nov 2025342 AMAQI
6th Nov 2025353 AMAQI
6th Nov 2025324 AMAQI
6th Nov 2025335 AMAQI
6th Nov 2025326 AMAQI
3°C-1/8°C
6th Nov 2025307 AMAQI
6th Nov 2025378 AMAQI
6th Nov 2025309 AMAQI
6th Nov 20252910 AMAQI
6th Nov 20252511 AMAQI
6th Nov 20252612 PMAQI
6th Nov 2025251 PMAQI
6th Nov 2025252 PMAQI
6th Nov 2025453 PMAQI
6th Nov 2025404 PMAQI
6th Nov 2025425 PMAQI
6th Nov 2025656 PMAQI
6th Nov 2025477 PMAQI
6th Nov 2025268 PMAQI
6th Nov 2025339 PMAQI
6th Nov 20253310 PMAQI
6th Nov 20253411 PMAQI
7th Nov 20253912 AMAQI
7th Nov 2025371 AMAQI
7th Nov 2025362 AMAQI
7th Nov 2025383 AMAQI
7th Nov 2025294 AMAQI
7th Nov 2025315 AMAQI
7th Nov 2025326 AMAQI
5°C1/10°C
7th Nov 2025317 AMAQI
7th Nov 2025308 AMAQI
7th Nov 2025299 AMAQI
7th Nov 20253210 AMAQI
7th Nov 20252811 AMAQI
7th Nov 20252212 PMAQI
7th Nov 2025221 PMAQI
7th Nov 2025222 PMAQI
7th Nov 2025273 PMAQI
7th Nov 2025344 PMAQI
7th Nov 2025395 PMAQI
7th Nov 2025446 PMAQI
7th Nov 2025457 PMAQI
7th Nov 2025468 PMAQI
7th Nov 2025449 PMAQI
7th Nov 20254410 PMAQI
7th Nov 20255411 PMAQI
8th Nov 20255312 AMAQI
8th Nov 2025541 AMAQI
8th Nov 2025542 AMAQI
8th Nov 2025543 AMAQI
8th Nov 2025544 AMAQI
8th Nov 2025555 AMAQI
8th Nov 2025566 AMAQI
2°C0/6°C
8th Nov 2025577 AMAQI
8th Nov 2025568 AMAQI
8th Nov 2025559 AMAQI
8th Nov 20255410 AMAQI
8th Nov 20255311 AMAQI
8th Nov 20255412 PMAQI
8th Nov 2025561 PMAQI
8th Nov 2025562 PMAQI
8th Nov 2025563 PMAQI
8th Nov 2025564 PMAQI
8th Nov 2025535 PMAQI
8th Nov 2025526 PMAQI
8th Nov 2025527 PMAQI
8th Nov 2025548 PMAQI
8th Nov 2025579 PMAQI
8th Nov 20255710 PMAQI
8th Nov 20255911 PMAQI
9th Nov 20256212 AMAQI
9th Nov 2025611 AMAQI
9th Nov 2025592 AMAQI
9th Nov 2025583 AMAQI
9th Nov 2025594 AMAQI
9th Nov 2025585 AMAQI
9th Nov 2025576 AMAQI
1°C-3/5°C
9th Nov 2025567 AMAQI
9th Nov 2025568 AMAQI
9th Nov 2025569 AMAQI
9th Nov 20255610 AMAQI
9th Nov 20255711 AMAQI
9th Nov 20255712 PMAQI
9th Nov 2025571 PMAQI
9th Nov 2025562 PMAQI
9th Nov 2025563 PMAQI
9th Nov 2025574 PMAQI
9th Nov 2025565 PMAQI
9th Nov 2025576 PMAQI
9th Nov 2025567 PMAQI
9th Nov 2025558 PMAQI
9th Nov 2025559 PMAQI
9th Nov 20255510 PMAQI
9th Nov 20255311 PMAQI
10th Nov 20255212 AMAQI
10th Nov 2025491 AMAQI
10th Nov 2025462 AMAQI
10th Nov 2025533 AMAQI
10th Nov 2025504 AMAQI
10th Nov 2025465 AMAQI
10th Nov 2025516 AMAQI
0°C-3/4°C
10th Nov 2025487 AMAQI
10th Nov 2025468 AMAQI
10th Nov 2025469 AMAQI
10th Nov 20254910 AMAQI
10th Nov 20255511 AMAQI
10th Nov 20255212 PMAQI
10th Nov 2025551 PMAQI
10th Nov 2025552 PMAQI
10th Nov 2025543 PMAQI
10th Nov 2025514 PMAQI
10th Nov 2025485 PMAQI
10th Nov 2025526 PMAQI
10th Nov 2025517 PMAQI
10th Nov 2025538 PMAQI
10th Nov 2025539 PMAQI
10th Nov 20255410 PMAQI
10th Nov 20255611 PMAQI
11th Nov 20255612 AMAQI
11th Nov 2025551 AMAQI
11th Nov 2025542 AMAQI
11th Nov 2025563 AMAQI
11th Nov 2025574 AMAQI
11th Nov 2025565 AMAQI
11th Nov 2025566 AMAQI
0°C-3/3°C
11th Nov 2025567 AMAQI
11th Nov 2025548 AMAQI
11th Nov 2025559 AMAQI
11th Nov 20255610 AMAQI
11th Nov 20255811 AMAQI
11th Nov 20255712 PMAQI
11th Nov 2025571 PMAQI
11th Nov 2025552 PMAQI
11th Nov 2025513 PMAQI
11th Nov 2025434 PMAQI
11th Nov 2025345 PMAQI
11th Nov 2025376 PMAQI
11th Nov 2025357 PMAQI
11th Nov 2025358 PMAQI
11th Nov 2025359 PMAQI
11th Nov 20253910 PMAQI
11th Nov 20253411 PMAQI
12th Nov 20253712 AMAQI
12th Nov 2025411 AMAQI
12th Nov 2025492 AMAQI
12th Nov 2025553 AMAQI
12th Nov 2025544 AMAQI
12th Nov 2025535 AMAQI
12th Nov 2025486 AMAQI
1°C-2/4°C
12th Nov 2025517 AMAQI
12th Nov 2025468 AMAQI
12th Nov 2025439 AMAQI
12th Nov 20253810 AMAQI
12th Nov 20253811 AMAQI
12th Nov 20253112 PMAQI
12th Nov 2025281 PMAQI
12th Nov 2025262 PMAQI
12th Nov 2025223 PMAQI
12th Nov 2025224 PMAQI
12th Nov 2025225 PMAQI
12th Nov 2025236 PMAQI
12th Nov 2025327 PMAQI
12th Nov 2025338 PMAQI
12th Nov 2025289 PMAQI
12th Nov 20253310 PMAQI
12th Nov 20253611 PMAQI
13th Nov 20254412 AMAQI
13th Nov 2025471 AMAQI
13th Nov 2025522 AMAQI
13th Nov 2025553 AMAQI
13th Nov 2025524 AMAQI
13th Nov 2025515 AMAQI
13th Nov 2025486 AMAQI
0°C-2/2°C
13th Nov 2025487 AMAQI
13th Nov 2025528 AMAQI
13th Nov 2025519 AMAQI
13th Nov 20255510 AMAQI
13th Nov 20255711 AMAQI
13th Nov 20255912 PMAQI
13th Nov 2025551 PMAQI
13th Nov 2025532 PMAQI
13th Nov 2025523 PMAQI
13th Nov 2025474 PMAQI
13th Nov 2025405 PMAQI
13th Nov 2025346 PMAQI
13th Nov 2025347 PMAQI
13th Nov 2025418 PMAQI
13th Nov 2025369 PMAQI
13th Nov 20255210 PMAQI
13th Nov 20255211 PMAQI
14th Nov 20255012 AMAQI
14th Nov 2025451 AMAQI
14th Nov 2025522 AMAQI
14th Nov 2025523 AMAQI
14th Nov 2025514 AMAQI
14th Nov 2025535 AMAQI
14th Nov 2025536 AMAQI
0°C-4/3°C
14th Nov 2025537 AMAQI
14th Nov 2025538 AMAQI
14th Nov 2025519 AMAQI
14th Nov 20255310 AMAQI
14th Nov 20255311 AMAQI
14th Nov 20255012 PMAQI
14th Nov 2025491 PMAQI
14th Nov 2025442 PMAQI
14th Nov 2025433 PMAQI
14th Nov 2025324 PMAQI
14th Nov 2025285 PMAQI
14th Nov 2025236 PMAQI
14th Nov 2025227 PMAQI
14th Nov 2025208 PMAQI
14th Nov 2025229 PMAQI
14th Nov 20253010 PMAQI
14th Nov 20253311 PMAQI
15th Nov 20253312 AMAQI
15th Nov 2025401 AMAQI
15th Nov 2025422 AMAQI
15th Nov 2025443 AMAQI
15th Nov 2025494 AMAQI
15th Nov 2025525 AMAQI
15th Nov 2025526 AMAQI
-1°C-3/3°C
15th Nov 2025537 AMAQI
15th Nov 2025548 AMAQI
15th Nov 2025549 AMAQI
15th Nov 20255410 AMAQI
15th Nov 20255311 AMAQI
15th Nov 20255312 PMAQI
15th Nov 2025521 PMAQI
15th Nov 2025492 PMAQI
15th Nov 2025413 PMAQI
15th Nov 2025334 PMAQI
15th Nov 2025245 PMAQI
15th Nov 2025226 PMAQI
15th Nov 2025347 PMAQI
15th Nov 2025248 PMAQI
15th Nov 2025249 PMAQI
15th Nov 20252410 PMAQI
15th Nov 20252311 PMAQI
16th Nov 20252212 AMAQI
16th Nov 2025231 AMAQI
16th Nov 2025292 AMAQI
16th Nov 2025303 AMAQI
16th Nov 2025334 AMAQI
16th Nov 2025335 AMAQI
16th Nov 2025316 AMAQI
-2°C-5/3°C
16th Nov 2025307 AMAQI
16th Nov 2025308 AMAQI
16th Nov 2025339 AMAQI
16th Nov 20253210 AMAQI
16th Nov 20253211 AMAQI
16th Nov 20253312 PMAQI
16th Nov 2025331 PMAQI
16th Nov 2025322 PMAQI
16th Nov 2025323 PMAQI
16th Nov 2025294 PMAQI
16th Nov 2025295 PMAQI
16th Nov 2025326 PMAQI
16th Nov 2025307 PMAQI
16th Nov 2025338 PMAQI
16th Nov 2025339 PMAQI
16th Nov 20253110 PMAQI
16th Nov 20252111 PMAQI
17th Nov 20252612 AMAQI
17th Nov 2025221 AMAQI
17th Nov 2025222 AMAQI
17th Nov 2025283 AMAQI
17th Nov 2025284 AMAQI
17th Nov 2025185 AMAQI
17th Nov 2025206 AMAQI
-2°C-5/3°C
17th Nov 2025217 AMAQI
17th Nov 2025458 AMAQI
17th Nov 2025289 AMAQI
17th Nov 20252010 AMAQI
17th Nov 20252211 AMAQI
17th Nov 20253112 PMAQI
17th Nov 2025391 PMAQI
17th Nov 2025322 PMAQI
17th Nov 2025373 PMAQI
17th Nov 2025404 PMAQI
17th Nov 2025215 PMAQI
17th Nov 2025216 PMAQI
17th Nov 2025287 PMAQI
17th Nov 2025288 PMAQI
17th Nov 2025279 PMAQI
17th Nov 20252310 PMAQI
17th Nov 20252711 PMAQI
18th Nov 20252412 AMAQI
18th Nov 2025281 AMAQI
18th Nov 2025172 AMAQI
18th Nov 2025263 AMAQI
18th Nov 2025424 AMAQI
18th Nov 2025465 AMAQI
18th Nov 2025186 AMAQI
-2°C-6/2°C
18th Nov 2025217 AMAQI
18th Nov 2025238 AMAQI
18th Nov 2025239 AMAQI
18th Nov 20253010 AMAQI
18th Nov 20253411 AMAQI
18th Nov 20253912 PMAQI
18th Nov 2025451 PMAQI
18th Nov 2025472 PMAQI
18th Nov 2025483 PMAQI
18th Nov 2025404 PMAQI
18th Nov 2025405 PMAQI
18th Nov 2025346 PMAQI
18th Nov 2025337 PMAQI
18th Nov 2025378 PMAQI
18th Nov 2025469 PMAQI
18th Nov 20255010 PMAQI
18th Nov 20255511 PMAQI
19th Nov 20255712 AMAQI
19th Nov 2025581 AMAQI
19th Nov 2025572 AMAQI
19th Nov 2025593 AMAQI
19th Nov 2025564 AMAQI
19th Nov 2025605 AMAQI
19th Nov 2025606 AMAQI
-7°C-11/-3°C
19th Nov 2025597 AMAQI
19th Nov 2025598 AMAQI
19th Nov 2025569 AMAQI
19th Nov 20255610 AMAQI
19th Nov 20255611 AMAQI
19th Nov 20255712 PMAQI
19th Nov 2025561 PMAQI
19th Nov 2025552 PMAQI
19th Nov 2025483 PMAQI
19th Nov 2025514 PMAQI
19th Nov 2025455 PMAQI
19th Nov 2025396 PMAQI
19th Nov 2025447 PMAQI
19th Nov 2025428 PMAQI
19th Nov 2025399 PMAQI
19th Nov 20253310 PMAQI
19th Nov 20253511 PMAQI
20th Nov 20253912 AMAQI
20th Nov 2025351 AMAQI
20th Nov 2025332 AMAQI
20th Nov 2025333 AMAQI
20th Nov 2025344 AMAQI
20th Nov 2025385 AMAQI
20th Nov 2025416 AMAQI
-5°C-7/-1°C
20th Nov 2025427 AMAQI
20th Nov 2025398 AMAQI
20th Nov 2025449 AMAQI
20th Nov 20254610 AMAQI
20th Nov 20255411 AMAQI
20th Nov 20255412 PMAQI
20th Nov 2025531 PMAQI
20th Nov 2025532 PMAQI
20th Nov 2025453 PMAQI
20th Nov 2025354 PMAQI
20th Nov 2025345 PMAQI
20th Nov 2025346 PMAQI
20th Nov 2025437 PMAQI
20th Nov 2025488 PMAQI
20th Nov 2025539 PMAQI
20th Nov 20254910 PMAQI
20th Nov 20255411 PMAQI
21st Nov 20255512 AMAQI
21st Nov 2025561 AMAQI
21st Nov 2025582 AMAQI
21st Nov 2025593 AMAQI
21st Nov 2025594 AMAQI
21st Nov 2025585 AMAQI
21st Nov 2025576 AMAQI
-4°C-8/-1°C
21st Nov 2025547 AMAQI
21st Nov 2025458 AMAQI
21st Nov 2025459 AMAQI
21st Nov 20255010 AMAQI
21st Nov 20255211 AMAQI
21st Nov 20255612 PMAQI
21st Nov 2025571 PMAQI
21st Nov 2025572 PMAQI
21st Nov 2025553 PMAQI
21st Nov 2025504 PMAQI
21st Nov 2025485 PMAQI
21st Nov 2025396 PMAQI
21st Nov 2025387 PMAQI
21st Nov 2025348 PMAQI
21st Nov 2025339 PMAQI
21st Nov 20253510 PMAQI
21st Nov 20254311 PMAQI
22nd Nov 20254112 AMAQI
22nd Nov 2025451 AMAQI
22nd Nov 2025462 AMAQI
22nd Nov 2025483 AMAQI
22nd Nov 2025524 AMAQI
22nd Nov 2025545 AMAQI
22nd Nov 2025546 AMAQI
-4°C-7/-1°C
22nd Nov 2025557 AMAQI
7 AM22nd Nov 2025558 AMAQI
22nd Nov 2025569 AMAQI
22nd Nov 20255610 AMAQI
12 PM
6 PM
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
8 AM - 1 PM
66AQI
6 hours / Day
180 hours / Month
Avg. Lowest Time
5 PM - 6 PM
51AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 1 PM (Avg. 66), while the lowest AQI was between 5 PM to 6 PM (Avg. 51).
Night time
Avg. Highest Time
12 AM - 6 AM
65AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
7 PM - 10 PM
53AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 6 AM (Avg. 65), while the lowest AQI was between 7 PM to 10 PM (Avg. 53).
2025 Days Vs Air Quality
Hziyan, Xining, Qinghai, China
2025
6%
18
82%
266
13%
41
Total number of days with different AQI categories in last 326 days in 2025 (39 days remaining)
Good
18 DaysModerate
266 DaysPoor
41 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2025, 6% of 326 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Hziyan, Xining, Qinghai, China
AQI levels in 2025
AQI
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 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
85AQI
85AQI
2nd January 2025
76AQI
76AQI
3rd January 2025
101AQI
101AQI
4th January 2025
93AQI
93AQI
5th January 2025
104AQI
104AQI
6th January 2025
99AQI
99AQI
7th January 2025
102AQI
102AQI
8th January 2025
120AQI
120AQI
9th January 2025
111AQI
111AQI
10th January 2025
89AQI
89AQI
11th January 2025
82AQI
82AQI
12th January 2025
83AQI
83AQI
13th January 2025
83AQI
83AQI
14th January 2025
81AQI
81AQI
15th January 2025
94AQI
94AQI
16th January 2025
105AQI
105AQI
17th January 2025
92AQI
92AQI
18th January 2025
79AQI
79AQI
19th January 2025
91AQI
91AQI
20th January 2025
82AQI
82AQI
21st January 2025
88AQI
88AQI
22nd January 2025
92AQI
92AQI
23rd January 2025
103AQI
103AQI
24th January 2025
96AQI
96AQI
25th January 2025
88AQI
88AQI
26th January 2025
78AQI
78AQI
27th January 2025
85AQI
85AQI
28th January 2025
94AQI
94AQI
29th January 2025
106AQI
106AQI
30th January 2025
80AQI
80AQI
31st January 2025
96AQI
96AQI
1st February 2025
93AQI
93AQI
2nd February 2025
83AQI
83AQI
3rd February 2025
94AQI
94AQI
4th February 2025
88AQI
88AQI
5th February 2025
82AQI
82AQI
6th February 2025
75AQI
75AQI
7th February 2025
72AQI
72AQI
8th February 2025
74AQI
74AQI
9th February 2025
79AQI
79AQI
10th February 2025
79AQI
79AQI
11th February 2025
78AQI
78AQI
12th February 2025
92AQI
92AQI
13th February 2025
90AQI
90AQI
14th February 2025
55AQI
55AQI
15th February 2025
59AQI
59AQI
16th February 2025
58AQI
58AQI
17th February 2025
57AQI
57AQI
18th February 2025
57AQI
57AQI
19th February 2025
68AQI
68AQI
20th February 2025
64AQI
64AQI
21st February 2025
70AQI
70AQI
22nd February 2025
67AQI
67AQI
23rd February 2025
62AQI
62AQI
24th February 2025
60AQI
60AQI
25th February 2025
56AQI
56AQI
26th February 2025
52AQI
52AQI
27th February 2025
57AQI
57AQI
28th February 2025
57AQI
57AQI
1st March 2025
63AQI
63AQI
2nd March 2025
46AQI
46AQI
3rd March 2025
59AQI
59AQI
4th March 2025
58AQI
58AQI
5th March 2025
59AQI
59AQI
6th March 2025
67AQI
67AQI
7th March 2025
68AQI
68AQI
8th March 2025
63AQI
63AQI
9th March 2025
66AQI
66AQI
10th March 2025
63AQI
63AQI
11th March 2025
106AQI
106AQI
12th March 2025
83AQI
83AQI
13th March 2025
78AQI
78AQI
14th March 2025
81AQI
81AQI
15th March 2025
73AQI
73AQI
16th March 2025
79AQI
79AQI
17th March 2025
79AQI
79AQI
18th March 2025
80AQI
80AQI
19th March 2025
75AQI
75AQI
20th March 2025
85AQI
85AQI
21st March 2025
84AQI
84AQI
22nd March 2025
75AQI
75AQI
23rd March 2025
81AQI
81AQI
24th March 2025
109AQI
109AQI
25th March 2025
146AQI
146AQI
26th March 2025
138AQI
138AQI
27th March 2025
93AQI
93AQI
28th March 2025
99AQI
99AQI
29th March 2025
93AQI
93AQI
30th March 2025
118AQI
118AQI
31st March 2025
106AQI
106AQI
1st April 2025
133AQI
133AQI
2nd April 2025
129AQI
129AQI
3rd April 2025
126AQI
126AQI
4th April 2025
129AQI
129AQI
5th April 2025
110AQI
110AQI
6th April 2025
100AQI
100AQI
7th April 2025
118AQI
118AQI
8th April 2025
113AQI
113AQI
9th April 2025
108AQI
108AQI
10th April 2025
81AQI
81AQI
11th April 2025
91AQI
91AQI
12th April 2025
121AQI
121AQI
13th April 2025
81AQI
81AQI
14th April 2025
86AQI
86AQI
15th April 2025
84AQI
84AQI
16th April 2025
112AQI
112AQI
17th April 2025
99AQI
99AQI
18th April 2025
108AQI
108AQI
19th April 2025
132AQI
132AQI
20th April 2025
133AQI
133AQI
21st April 2025
120AQI
120AQI
22nd April 2025
113AQI
113AQI
23rd April 2025
83AQI
83AQI
24th April 2025
90AQI
90AQI
25th April 2025
87AQI
87AQI
26th April 2025
85AQI
85AQI
27th April 2025
82AQI
82AQI
28th April 2025
77AQI
77AQI
29th April 2025
80AQI
80AQI
30th April 2025
105AQI
105AQI
1st May 2025
84AQI
84AQI
2nd May 2025
107AQI
107AQI
3rd May 2025
111AQI
111AQI
4th May 2025
87AQI
87AQI
5th May 2025
113AQI
113AQI
6th May 2025
110AQI
110AQI
7th May 2025
119AQI
119AQI
8th May 2025
101AQI
101AQI
9th May 2025
93AQI
93AQI
10th May 2025
79AQI
79AQI
11th May 2025
75AQI
75AQI
12th May 2025
71AQI
71AQI
13th May 2025
81AQI
81AQI
14th May 2025
74AQI
74AQI
15th May 2025
74AQI
74AQI
16th May 2025
83AQI
83AQI
17th May 2025
108AQI
108AQI
18th May 2025
80AQI
80AQI
19th May 2025
88AQI
88AQI
20th May 2025
86AQI
86AQI
21st May 2025
93AQI
93AQI
22nd May 2025
86AQI
86AQI
23rd May 2025
74AQI
74AQI
24th May 2025
76AQI
76AQI
25th May 2025
67AQI
67AQI
26th May 2025
68AQI
68AQI
27th May 2025
70AQI
70AQI
28th May 2025
74AQI
74AQI
29th May 2025
82AQI
82AQI
30th May 2025
90AQI
90AQI
31st May 2025
92AQI
92AQI
1st June 2025
81AQI
81AQI
2nd June 2025
78AQI
78AQI
3rd June 2025
72AQI
72AQI
4th June 2025
76AQI
76AQI
5th June 2025
64AQI
64AQI
6th June 2025
68AQI
68AQI
7th June 2025
78AQI
78AQI
8th June 2025
82AQI
82AQI
9th June 2025
80AQI
80AQI
10th June 2025
73AQI
73AQI
11th June 2025
79AQI
79AQI
12th June 2025
87AQI
87AQI
13th June 2025
89AQI
89AQI
14th June 2025
80AQI
80AQI
15th June 2025
80AQI
80AQI
16th June 2025
75AQI
75AQI
17th June 2025
78AQI
78AQI
18th June 2025
75AQI
75AQI
19th June 2025
72AQI
72AQI
20th June 2025
69AQI
69AQI
21st June 2025
68AQI
68AQI
22nd June 2025
56AQI
56AQI
23rd June 2025
62AQI
62AQI
24th June 2025
58AQI
58AQI
25th June 2025
61AQI
61AQI
26th June 2025
62AQI
62AQI
27th June 2025
59AQI
59AQI
28th June 2025
64AQI
64AQI
29th June 2025
63AQI
63AQI
30th June 2025
61AQI
61AQI
1st July 2025
60AQI
60AQI
2nd July 2025
59AQI
59AQI
3rd July 2025
60AQI
60AQI
4th July 2025
52AQI
52AQI
5th July 2025
52AQI
52AQI
6th July 2025
51AQI
51AQI
7th July 2025
55AQI
55AQI
8th July 2025
57AQI
57AQI
9th July 2025
56AQI
56AQI
10th July 2025
61AQI
61AQI
11th July 2025
59AQI
59AQI
12th July 2025
64AQI
64AQI
13th July 2025
72AQI
72AQI
14th July 2025
70AQI
70AQI
15th July 2025
69AQI
69AQI
16th July 2025
65AQI
65AQI
17th July 2025
63AQI
63AQI
18th July 2025
67AQI
67AQI
19th July 2025
62AQI
62AQI
20th July 2025
58AQI
58AQI
21st July 2025
58AQI
58AQI
22nd July 2025
62AQI
62AQI
23rd July 2025
67AQI
67AQI
24th July 2025
57AQI
57AQI
25th July 2025
55AQI
55AQI
26th July 2025
59AQI
59AQI
27th July 2025
61AQI
61AQI
28th July 2025
59AQI
59AQI
29th July 2025
59AQI
59AQI
30th July 2025
63AQI
63AQI
31st July 2025
69AQI
69AQI
1st August 2025
61AQI
61AQI
2nd August 2025
61AQI
61AQI
3rd August 2025
60AQI
60AQI
4th August 2025
53AQI
53AQI
5th August 2025
55AQI
55AQI
6th August 2025
57AQI
57AQI
7th August 2025
59AQI
59AQI
8th August 2025
53AQI
53AQI
9th August 2025
54AQI
54AQI
10th August 2025
56AQI
56AQI
11th August 2025
60AQI
60AQI
12th August 2025
58AQI
58AQI
13th August 2025
59AQI
59AQI
14th August 2025
58AQI
58AQI
15th August 2025
57AQI
57AQI
16th August 2025
56AQI
56AQI
17th August 2025
59AQI
59AQI
18th August 2025
58AQI
58AQI
19th August 2025
56AQI
56AQI
20th August 2025
59AQI
59AQI
21st August 2025
51AQI
51AQI
22nd August 2025
51AQI
51AQI
23rd August 2025
50AQI
50AQI
24th August 2025
54AQI
54AQI
25th August 2025
57AQI
57AQI
26th August 2025
56AQI
56AQI
27th August 2025
51AQI
51AQI
28th August 2025
48AQI
48AQI
29th August 2025
49AQI
49AQI
30th August 2025
52AQI
52AQI
31st August 2025
54AQI
54AQI
1st September 2025
55AQI
55AQI
2nd September 2025
64AQI
64AQI
3rd September 2025
63AQI
63AQI
4th September 2025
65AQI
65AQI
5th September 2025
59AQI
59AQI
6th September 2025
66AQI
66AQI
7th September 2025
65AQI
65AQI
8th September 2025
64AQI
64AQI
9th September 2025
62AQI
62AQI
10th September 2025
66AQI
66AQI
11th September 2025
63AQI
63AQI
12th September 2025
58AQI
58AQI
13th September 2025
69AQI
69AQI
14th September 2025
72AQI
72AQI
15th September 2025
82AQI
82AQI
16th September 2025
72AQI
72AQI
17th September 2025
59AQI
59AQI
18th September 2025
57AQI
57AQI
19th September 2025
59AQI
59AQI
20th September 2025
58AQI
58AQI
21st September 2025
58AQI
58AQI
22nd September 2025
64AQI
64AQI
23rd September 2025
56AQI
56AQI
24th September 2025
62AQI
62AQI
25th September 2025
60AQI
60AQI
26th September 2025
63AQI
63AQI
27th September 2025
61AQI
61AQI
28th September 2025
60AQI
60AQI
29th September 2025
67AQI
67AQI
30th September 2025
74AQI
74AQI
1st October 2025
48AQI
48AQI
2nd October 2025
60AQI
60AQI
3rd October 2025
76AQI
76AQI
4th October 2025
74AQI
74AQI
5th October 2025
67AQI
67AQI
6th October 2025
67AQI
67AQI
7th October 2025
55AQI
55AQI
8th October 2025
49AQI
49AQI
9th October 2025
52AQI
52AQI
10th October 2025
51AQI
51AQI
11th October 2025
55AQI
55AQI
12th October 2025
54AQI
54AQI
13th October 2025
61AQI
61AQI
14th October 2025
72AQI
72AQI
15th October 2025
63AQI
63AQI
16th October 2025
79AQI
79AQI
17th October 2025
63AQI
63AQI
18th October 2025
87AQI
87AQI
19th October 2025
74AQI
74AQI
20th October 2025
92AQI
92AQI
21st October 2025
106AQI
106AQI
22nd October 2025
120AQI
120AQI
23rd October 2025
96AQI
96AQI
24th October 2025
85AQI
85AQI
25th October 2025
82AQI
82AQI
26th October 2025
72AQI
72AQI
27th October 2025
84AQI
84AQI
28th October 2025
91AQI
91AQI
29th October 2025
104AQI
104AQI
30th October 2025
93AQI
93AQI
31st October 2025
86AQI
86AQI
1st November 2025
107AQI
107AQI
2nd November 2025
77AQI
77AQI
3rd November 2025
47AQI
47AQI
4th November 2025
53AQI
53AQI
5th November 2025
52AQI
52AQI
6th November 2025
35AQI
35AQI
7th November 2025
36AQI
36AQI
8th November 2025
55AQI
55AQI
9th November 2025
57AQI
57AQI
10th November 2025
51AQI
51AQI
11th November 2025
48AQI
48AQI
12th November 2025
37AQI
37AQI
13th November 2025
48AQI
48AQI
14th November 2025
41AQI
41AQI
15th November 2025
40AQI
40AQI
16th November 2025
30AQI
30AQI
17th November 2025
26AQI
26AQI
18th November 2025
35AQI
35AQI
19th November 2025
51AQI
51AQI
20th November 2025
43AQI
43AQI
21st November 2025
56AQI
56AQI
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
92AQI
71AQI
83AQI
104AQI
87AQI
72AQI
61AQI
56AQI
63AQI
75AQI
49AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202575AQI
23
8
28
1
24
6
14
16
24
7
30
31
3
28
30
2
26
3
12
8
1
18
266
41
Highest AQI recorded in
April104AQI
Lowest AQI recorded in
November49AQI
202468AQI
3
13
2
5
4
11
1
30
31
8
23
1
28
11
20
1
26
3
16
15
24
209
19
Highest AQI recorded in
December103AQI
Lowest AQI recorded in
August55AQI
202351AQI
2
1
13
18
15
19
Highest AQI recorded in
December51AQI
Lowest AQI recorded in
November45AQI
202159AQI
1
1
Highest AQI recorded in
January59AQI
Lowest AQI recorded in
January59AQI
202067AQI
1
10
2
2
18
1
5
13
4
26
1
30
5
26
30
2
29
9
17
3
1
8
18
4
37
217
10
1
Highest AQI recorded in
November76AQI
Lowest AQI recorded in
May56AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2025(Avg.)
75AQILeast Polluted Year Recorded
2023(Avg.)
51AQIHziyan's annual 2025 AQI (75) shows an average percentage change of 23.5% (worsened AQI) compared to previous years: 2020 (67), 2021 (59), 2023 (51), 2024 (68).
