Yongan Station, Hangzhou, Zhejiang, 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+
September Air Quality Analysis
Yongan Station, Hangzhou, Zhejiang, China
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
8th Sep 2022
153AQILowest AQI recorded on
13th Sep 2021
14AQISame Day Analysis (17th September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 60 of Moderate air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Yongan Station, Hangzhou, Zhejiang, China
AQI
Day
Night
.
5 AM17th Sep 2025
6 PM
4 AM18th Sep 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
8AM17th Sep
68AQI
Avg. Lowest Time
12AM18th Sep
58AQI
In the last 24 hours,
Yongan Station's AQI reached its highest point of 68 at 8 AM during the Night, while the lowest point, 58, was recorded at 12 AM during the Night between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Yongan Station, Hangzhou, Zhejiang, China
AugSep
19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th
Day
Night
19th Aug 2025515 AMAQI
19th Aug 2025516 AMAQI
19th Aug 2025507 AMAQI
19th Aug 2025568 AMAQI
19th Aug 2025559 AMAQI
19th Aug 20255610 AMAQI
19th Aug 20255211 AMAQI
19th Aug 20255512 PMAQI
19th Aug 2025571 PMAQI
19th Aug 2025572 PMAQI
19th Aug 2025543 PMAQI
19th Aug 2025544 PMAQI
19th Aug 2025565 PMAQI
19th Aug 2025596 PMAQI
19th Aug 2025557 PMAQI
19th Aug 2025548 PMAQI
19th Aug 2025589 PMAQI
19th Aug 20255910 PMAQI
19th Aug 20255811 PMAQI
20th Aug 20255412 AMAQI
20th Aug 2025521 AMAQI
20th Aug 2025512 AMAQI
20th Aug 2025523 AMAQI
20th Aug 2025524 AMAQI
30°C26/37°C
20th Aug 2025525 AMAQI
20th Aug 2025526 AMAQI
20th Aug 2025527 AMAQI
20th Aug 2025608 AMAQI
20th Aug 2025659 AMAQI
20th Aug 20256010 AMAQI
20th Aug 20256011 AMAQI
20th Aug 20256212 PMAQI
20th Aug 2025651 PMAQI
20th Aug 2025652 PMAQI
20th Aug 2025593 PMAQI
20th Aug 2025614 PMAQI
20th Aug 2025635 PMAQI
20th Aug 2025696 PMAQI
20th Aug 2025627 PMAQI
20th Aug 2025578 PMAQI
20th Aug 2025599 PMAQI
20th Aug 20256310 PMAQI
20th Aug 20256111 PMAQI
21st Aug 20255812 AMAQI
21st Aug 2025521 AMAQI
21st Aug 2025522 AMAQI
21st Aug 2025533 AMAQI
21st Aug 2025534 AMAQI
30°C26/37°C
21st Aug 2025545 AMAQI
21st Aug 2025546 AMAQI
21st Aug 2025547 AMAQI
21st Aug 2025658 AMAQI
21st Aug 2025579 AMAQI
21st Aug 20256310 AMAQI
21st Aug 20256311 AMAQI
21st Aug 20256212 PMAQI
21st Aug 2025631 PMAQI
21st Aug 2025722 PMAQI
21st Aug 2025683 PMAQI
21st Aug 2025674 PMAQI
21st Aug 2025985 PMAQI
21st Aug 2025896 PMAQI
21st Aug 2025647 PMAQI
21st Aug 2025658 PMAQI
21st Aug 2025629 PMAQI
21st Aug 20256110 PMAQI
21st Aug 20255911 PMAQI
22nd Aug 20255612 AMAQI
22nd Aug 2025541 AMAQI
22nd Aug 2025542 AMAQI
22nd Aug 2025553 AMAQI
22nd Aug 2025564 AMAQI
30°C25/37°C
22nd Aug 2025565 AMAQI
22nd Aug 2025566 AMAQI
22nd Aug 2025567 AMAQI
22nd Aug 2025508 AMAQI
22nd Aug 2025499 AMAQI
22nd Aug 20255110 AMAQI
22nd Aug 20255511 AMAQI
22nd Aug 20255912 PMAQI
22nd Aug 2025561 PMAQI
22nd Aug 2025532 PMAQI
22nd Aug 2025563 PMAQI
22nd Aug 2025554 PMAQI
22nd Aug 2025575 PMAQI
22nd Aug 2025576 PMAQI
22nd Aug 2025627 PMAQI
22nd Aug 2025578 PMAQI
22nd Aug 2025639 PMAQI
22nd Aug 20256510 PMAQI
22nd Aug 20256311 PMAQI
23rd Aug 20255612 AMAQI
23rd Aug 2025551 AMAQI
23rd Aug 2025552 AMAQI
23rd Aug 2025553 AMAQI
23rd Aug 2025544 AMAQI
29°C25/36°C
23rd Aug 2025545 AMAQI
23rd Aug 2025546 AMAQI
23rd Aug 2025557 AMAQI
23rd Aug 2025548 AMAQI
23rd Aug 2025499 AMAQI
23rd Aug 20256010 AMAQI
23rd Aug 20255511 AMAQI
23rd Aug 20255612 PMAQI
23rd Aug 2025541 PMAQI
23rd Aug 2025562 PMAQI
23rd Aug 2025513 PMAQI
23rd Aug 2025464 PMAQI
23rd Aug 2025465 PMAQI
23rd Aug 2025476 PMAQI
23rd Aug 2025507 PMAQI
23rd Aug 2025548 PMAQI
23rd Aug 2025529 PMAQI
23rd Aug 20255410 PMAQI
23rd Aug 20255811 PMAQI
24th Aug 20255612 AMAQI
24th Aug 2025551 AMAQI
24th Aug 2025552 AMAQI
24th Aug 2025563 AMAQI
24th Aug 2025564 AMAQI
30°C24/37°C
24th Aug 2025565 AMAQI
24th Aug 2025576 AMAQI
24th Aug 2025567 AMAQI
24th Aug 2025608 AMAQI
24th Aug 2025629 AMAQI
24th Aug 20255710 AMAQI
24th Aug 20255811 AMAQI
24th Aug 20255712 PMAQI
24th Aug 2025551 PMAQI
24th Aug 2025522 PMAQI
24th Aug 2025513 PMAQI
24th Aug 2025524 PMAQI
24th Aug 2025545 PMAQI
24th Aug 2025546 PMAQI
24th Aug 2025587 PMAQI
24th Aug 2025588 PMAQI
24th Aug 2025589 PMAQI
24th Aug 20255510 PMAQI
24th Aug 20255811 PMAQI
25th Aug 20255512 AMAQI
25th Aug 2025551 AMAQI
25th Aug 2025562 AMAQI
25th Aug 2025563 AMAQI
25th Aug 2025554 AMAQI
31°C26/38°C
25th Aug 2025555 AMAQI
25th Aug 2025566 AMAQI
25th Aug 2025567 AMAQI
25th Aug 2025588 AMAQI
25th Aug 2025559 AMAQI
25th Aug 20255510 AMAQI
25th Aug 20256411 AMAQI
25th Aug 20256012 PMAQI
25th Aug 2025601 PMAQI
25th Aug 2025652 PMAQI
25th Aug 2025563 PMAQI
25th Aug 2025564 PMAQI
25th Aug 2025605 PMAQI
25th Aug 2025546 PMAQI
25th Aug 2025557 PMAQI
25th Aug 2025558 PMAQI
25th Aug 2025559 PMAQI
25th Aug 20255410 PMAQI
25th Aug 20255311 PMAQI
26th Aug 20255212 AMAQI
26th Aug 2025541 AMAQI
26th Aug 2025552 AMAQI
26th Aug 2025553 AMAQI
26th Aug 2025554 AMAQI
29°C24/38°C
26th Aug 2025575 AMAQI
26th Aug 2025556 AMAQI
26th Aug 2025557 AMAQI
26th Aug 2025478 AMAQI
26th Aug 2025519 AMAQI
26th Aug 20255410 AMAQI
26th Aug 20255211 AMAQI
26th Aug 20255812 PMAQI
26th Aug 2025601 PMAQI
26th Aug 2025592 PMAQI
26th Aug 2025543 PMAQI
26th Aug 2025584 PMAQI
26th Aug 2025575 PMAQI
26th Aug 2025666 PMAQI
26th Aug 2025587 PMAQI
26th Aug 2025608 PMAQI
26th Aug 2025629 PMAQI
26th Aug 20256110 PMAQI
26th Aug 20255911 PMAQI
27th Aug 20256012 AMAQI
27th Aug 2025551 AMAQI
27th Aug 2025552 AMAQI
27th Aug 2025553 AMAQI
27th Aug 2025554 AMAQI
29°C23/35°C
27th Aug 2025565 AMAQI
27th Aug 2025556 AMAQI
27th Aug 2025567 AMAQI
27th Aug 2025698 AMAQI
27th Aug 2025669 AMAQI
27th Aug 20256010 AMAQI
27th Aug 20255811 AMAQI
27th Aug 20255712 PMAQI
27th Aug 2025531 PMAQI
27th Aug 2025562 PMAQI
27th Aug 2025553 PMAQI
27th Aug 2025474 PMAQI
27th Aug 2025495 PMAQI
27th Aug 2025546 PMAQI
27th Aug 2025517 PMAQI
27th Aug 2025568 PMAQI
27th Aug 2025549 PMAQI
27th Aug 20255610 PMAQI
27th Aug 20255511 PMAQI
28th Aug 20255312 AMAQI
28th Aug 2025551 AMAQI
28th Aug 2025552 AMAQI
28th Aug 2025563 AMAQI
28th Aug 2025564 AMAQI
30°C25/36°C
28th Aug 2025565 AMAQI
28th Aug 2025566 AMAQI
28th Aug 2025567 AMAQI
28th Aug 2025408 AMAQI
28th Aug 2025449 AMAQI
28th Aug 20254210 AMAQI
28th Aug 20255311 AMAQI
28th Aug 20255012 PMAQI
28th Aug 2025501 PMAQI
28th Aug 2025522 PMAQI
28th Aug 2025513 PMAQI
28th Aug 2025524 PMAQI
28th Aug 2025505 PMAQI
28th Aug 2025476 PMAQI
28th Aug 2025527 PMAQI
28th Aug 2025568 PMAQI
28th Aug 2025579 PMAQI
28th Aug 20255610 PMAQI
28th Aug 20255611 PMAQI
29th Aug 20255512 AMAQI
29th Aug 2025561 AMAQI
29th Aug 2025562 AMAQI
29th Aug 2025553 AMAQI
29th Aug 2025534 AMAQI
30°C25/37°C
29th Aug 2025545 AMAQI
29th Aug 2025556 AMAQI
29th Aug 2025567 AMAQI
29th Aug 2025538 AMAQI
29th Aug 2025519 AMAQI
29th Aug 20254310 AMAQI
29th Aug 20255211 AMAQI
29th Aug 20254812 PMAQI
29th Aug 2025511 PMAQI
29th Aug 2025432 PMAQI
29th Aug 2025503 PMAQI
29th Aug 2025444 PMAQI
29th Aug 2025465 PMAQI
29th Aug 2025526 PMAQI
29th Aug 2025527 PMAQI
29th Aug 2025568 PMAQI
29th Aug 2025569 PMAQI
29th Aug 20255710 PMAQI
29th Aug 20255811 PMAQI
30th Aug 20255612 AMAQI
30th Aug 2025541 AMAQI
30th Aug 2025552 AMAQI
30th Aug 2025553 AMAQI
30th Aug 2025544 AMAQI
30°C25/36°C
30th Aug 2025555 AMAQI
30th Aug 2025566 AMAQI
30th Aug 2025557 AMAQI
30th Aug 2025438 AMAQI
30th Aug 2025339 AMAQI
30th Aug 20254110 AMAQI
30th Aug 20255011 AMAQI
30th Aug 20254712 PMAQI
30th Aug 2025511 PMAQI
30th Aug 2025552 PMAQI
30th Aug 2025623 PMAQI
30th Aug 2025524 PMAQI
30th Aug 2025525 PMAQI
30th Aug 2025526 PMAQI
30th Aug 2025507 PMAQI
30th Aug 2025538 PMAQI
30th Aug 2025539 PMAQI
30th Aug 20255410 PMAQI
30th Aug 20255411 PMAQI
31st Aug 20255512 AMAQI
31st Aug 2025541 AMAQI
31st Aug 2025552 AMAQI
31st Aug 2025543 AMAQI
31st Aug 2025554 AMAQI
30°C25/37°C
31st Aug 2025545 AMAQI
31st Aug 2025546 AMAQI
31st Aug 2025557 AMAQI
31st Aug 2025548 AMAQI
31st Aug 2025539 AMAQI
31st Aug 20255110 AMAQI
31st Aug 20255511 AMAQI
31st Aug 20255912 PMAQI
31st Aug 2025561 PMAQI
31st Aug 2025602 PMAQI
31st Aug 2025513 PMAQI
31st Aug 2025414 PMAQI
31st Aug 2025425 PMAQI
31st Aug 2025506 PMAQI
31st Aug 2025507 PMAQI
31st Aug 2025528 PMAQI
31st Aug 2025539 PMAQI
31st Aug 20255310 PMAQI
31st Aug 20255311 PMAQI
1st Sep 20255412 AMAQI
1st Sep 2025531 AMAQI
1st Sep 2025522 AMAQI
1st Sep 2025543 AMAQI
1st Sep 2025544 AMAQI
28°C24/36°C
1st Sep 2025545 AMAQI
1st Sep 2025556 AMAQI
1st Sep 2025557 AMAQI
1st Sep 2025598 AMAQI
1st Sep 2025569 AMAQI
1st Sep 20256210 AMAQI
1st Sep 20256011 AMAQI
1st Sep 20255812 PMAQI
1st Sep 2025621 PMAQI
1st Sep 2025602 PMAQI
1st Sep 2025563 PMAQI
1st Sep 2025644 PMAQI
1st Sep 2025555 PMAQI
1st Sep 2025536 PMAQI
1st Sep 2025557 PMAQI
1st Sep 2025558 PMAQI
1st Sep 2025569 PMAQI
1st Sep 20255610 PMAQI
1st Sep 20255711 PMAQI
2nd Sep 20255612 AMAQI
2nd Sep 2025541 AMAQI
2nd Sep 2025542 AMAQI
2nd Sep 2025543 AMAQI
2nd Sep 2025554 AMAQI
27°C24/33°C
2nd Sep 2025565 AMAQI
2nd Sep 2025566 AMAQI
2nd Sep 2025557 AMAQI
2nd Sep 2025588 AMAQI
2nd Sep 2025609 AMAQI
2nd Sep 20256010 AMAQI
2nd Sep 20255411 AMAQI
2nd Sep 20255912 PMAQI
2nd Sep 2025571 PMAQI
2nd Sep 2025562 PMAQI
2nd Sep 2025563 PMAQI
2nd Sep 2025564 PMAQI
2nd Sep 2025525 PMAQI
2nd Sep 2025496 PMAQI
2nd Sep 2025537 PMAQI
2nd Sep 2025508 PMAQI
2nd Sep 2025519 PMAQI
2nd Sep 20255210 PMAQI
2nd Sep 20255411 PMAQI
3rd Sep 20255412 AMAQI
3rd Sep 2025551 AMAQI
3rd Sep 2025552 AMAQI
3rd Sep 2025553 AMAQI
3rd Sep 2025544 AMAQI
25°C23/28°C
3rd Sep 2025555 AMAQI
3rd Sep 2025556 AMAQI
3rd Sep 2025557 AMAQI
3rd Sep 2025628 AMAQI
3rd Sep 2025639 AMAQI
3rd Sep 20256210 AMAQI
3rd Sep 20256111 AMAQI
3rd Sep 20256012 PMAQI
3rd Sep 2025621 PMAQI
3rd Sep 2025642 PMAQI
3rd Sep 2025663 PMAQI
3rd Sep 2025624 PMAQI
3rd Sep 2025605 PMAQI
3rd Sep 2025596 PMAQI
3rd Sep 2025567 PMAQI
3rd Sep 2025608 PMAQI
3rd Sep 2025609 PMAQI
3rd Sep 20256010 PMAQI
3rd Sep 20255811 PMAQI
4th Sep 20255812 AMAQI
4th Sep 2025541 AMAQI
4th Sep 2025552 AMAQI
4th Sep 2025563 AMAQI
4th Sep 2025564 AMAQI
28°C23/35°C
4th Sep 2025565 AMAQI
4th Sep 2025566 AMAQI
4th Sep 2025567 AMAQI
4th Sep 2025688 AMAQI
4th Sep 2025739 AMAQI
4th Sep 20257110 AMAQI
4th Sep 20256811 AMAQI
4th Sep 20257212 PMAQI
4th Sep 2025701 PMAQI
4th Sep 2025712 PMAQI
4th Sep 2025663 PMAQI
4th Sep 2025744 PMAQI
4th Sep 2025775 PMAQI
4th Sep 2025826 PMAQI
4th Sep 2025837 PMAQI
4th Sep 2025878 PMAQI
4th Sep 2025889 PMAQI
4th Sep 20258510 PMAQI
4th Sep 20258211 PMAQI
5th Sep 20257512 AMAQI
5th Sep 2025561 AMAQI
5th Sep 2025562 AMAQI
5th Sep 2025583 AMAQI
5th Sep 2025584 AMAQI
28°C24/34°C
5th Sep 2025585 AMAQI
5th Sep 2025606 AMAQI
5th Sep 2025607 AMAQI
5th Sep 2025908 AMAQI
5th Sep 2025799 AMAQI
5th Sep 20259010 AMAQI
5th Sep 20257711 AMAQI
5th Sep 20257412 PMAQI
5th Sep 2025721 PMAQI
5th Sep 2025712 PMAQI
5th Sep 2025723 PMAQI
5th Sep 2025744 PMAQI
5th Sep 2025735 PMAQI
5th Sep 2025736 PMAQI
5th Sep 2025677 PMAQI
5th Sep 2025688 PMAQI
5th Sep 2025669 PMAQI
5th Sep 20256410 PMAQI
5th Sep 20256311 PMAQI
6th Sep 20256412 AMAQI
6th Sep 2025661 AMAQI
6th Sep 2025642 AMAQI
6th Sep 2025643 AMAQI
6th Sep 2025664 AMAQI
29°C24/36°C
6th Sep 2025665 AMAQI
6th Sep 2025656 AMAQI
6th Sep 2025667 AMAQI
6th Sep 2025728 AMAQI
6th Sep 2025629 AMAQI
6th Sep 20257410 AMAQI
6th Sep 20258011 AMAQI
6th Sep 20258012 PMAQI
6th Sep 2025821 PMAQI
6th Sep 2025672 PMAQI
6th Sep 2025703 PMAQI
6th Sep 2025684 PMAQI
6th Sep 2025585 PMAQI
6th Sep 2025586 PMAQI
6th Sep 2025617 PMAQI
6th Sep 2025648 PMAQI
6th Sep 2025689 PMAQI
6th Sep 20256610 PMAQI
6th Sep 20256611 PMAQI
7th Sep 20256612 AMAQI
7th Sep 2025641 AMAQI
7th Sep 2025642 AMAQI
7th Sep 2025633 AMAQI
7th Sep 2025654 AMAQI
29°C25/37°C
7th Sep 2025655 AMAQI
7th Sep 2025646 AMAQI
7th Sep 2025657 AMAQI
7th Sep 2025708 AMAQI
7th Sep 2025789 AMAQI
7th Sep 20257310 AMAQI
7th Sep 20257511 AMAQI
7th Sep 20258212 PMAQI
7th Sep 2025821 PMAQI
7th Sep 2025782 PMAQI
7th Sep 2025863 PMAQI
7th Sep 2025944 PMAQI
7th Sep 2025885 PMAQI
7th Sep 2025916 PMAQI
7th Sep 2025807 PMAQI
7th Sep 2025718 PMAQI
7th Sep 2025759 PMAQI
7th Sep 20258110 PMAQI
7th Sep 20257811 PMAQI
8th Sep 20257212 AMAQI
8th Sep 2025641 AMAQI
8th Sep 2025622 AMAQI
8th Sep 2025663 AMAQI
8th Sep 2025684 AMAQI
29°C25/36°C
8th Sep 2025685 AMAQI
8th Sep 2025686 AMAQI
8th Sep 2025687 AMAQI
8th Sep 2025748 AMAQI
8th Sep 2025829 AMAQI
8th Sep 20257910 AMAQI
8th Sep 20258611 AMAQI
8th Sep 20258912 PMAQI
8th Sep 2025711 PMAQI
8th Sep 2025602 PMAQI
8th Sep 2025593 PMAQI
8th Sep 2025584 PMAQI
8th Sep 2025605 PMAQI
8th Sep 2025586 PMAQI
8th Sep 2025587 PMAQI
8th Sep 2025608 PMAQI
8th Sep 2025589 PMAQI
8th Sep 20255810 PMAQI
8th Sep 20256011 PMAQI
9th Sep 20255812 AMAQI
9th Sep 2025611 AMAQI
9th Sep 2025662 AMAQI
9th Sep 2025663 AMAQI
9th Sep 2025664 AMAQI
29°C25/37°C
9th Sep 2025685 AMAQI
9th Sep 2025676 AMAQI
9th Sep 2025687 AMAQI
9th Sep 2025548 AMAQI
9th Sep 2025559 AMAQI
9th Sep 20255210 AMAQI
9th Sep 20254311 AMAQI
9th Sep 20255012 PMAQI
9th Sep 2025521 PMAQI
9th Sep 2025552 PMAQI
9th Sep 2025543 PMAQI
9th Sep 2025544 PMAQI
9th Sep 2025545 PMAQI
9th Sep 2025476 PMAQI
9th Sep 2025527 PMAQI
9th Sep 2025568 PMAQI
9th Sep 2025569 PMAQI
9th Sep 20255710 PMAQI
9th Sep 20255311 PMAQI
10th Sep 20256012 AMAQI
10th Sep 2025641 AMAQI
10th Sep 2025642 AMAQI
10th Sep 2025633 AMAQI
10th Sep 2025614 AMAQI
26°C24/31°C
10th Sep 2025615 AMAQI
10th Sep 2025616 AMAQI
10th Sep 2025617 AMAQI
10th Sep 2025408 AMAQI
10th Sep 2025349 AMAQI
10th Sep 20253910 AMAQI
10th Sep 20254211 AMAQI
10th Sep 20255112 PMAQI
10th Sep 2025521 PMAQI
10th Sep 2025512 PMAQI
10th Sep 2025503 PMAQI
10th Sep 2025474 PMAQI
10th Sep 2025495 PMAQI
10th Sep 2025486 PMAQI
10th Sep 2025537 PMAQI
10th Sep 2025568 PMAQI
10th Sep 2025579 PMAQI
10th Sep 20255610 PMAQI
10th Sep 20255711 PMAQI
11th Sep 20255712 AMAQI
11th Sep 2025601 AMAQI
11th Sep 2025602 AMAQI
11th Sep 2025583 AMAQI
11th Sep 2025584 AMAQI
25°C23/28°C
11th Sep 2025595 AMAQI
11th Sep 2025586 AMAQI
11th Sep 2025587 AMAQI
11th Sep 2025548 AMAQI
11th Sep 2025549 AMAQI
11th Sep 20255410 AMAQI
11th Sep 20255811 AMAQI
11th Sep 20255612 PMAQI
11th Sep 2025551 PMAQI
11th Sep 2025572 PMAQI
11th Sep 2025583 PMAQI
11th Sep 2025594 PMAQI
11th Sep 2025565 PMAQI
11th Sep 2025576 PMAQI
11th Sep 2025567 PMAQI
11th Sep 2025578 PMAQI
11th Sep 2025589 PMAQI
11th Sep 20255610 PMAQI
11th Sep 20255811 PMAQI
12th Sep 20255812 AMAQI
12th Sep 2025581 AMAQI
12th Sep 2025582 AMAQI
12th Sep 2025583 AMAQI
12th Sep 2025574 AMAQI
25°C22/30°C
12th Sep 2025585 AMAQI
12th Sep 2025586 AMAQI
12th Sep 2025587 AMAQI
12th Sep 2025598 AMAQI
12th Sep 2025559 AMAQI
12th Sep 20256610 AMAQI
12th Sep 20256311 AMAQI
12th Sep 20256112 PMAQI
12th Sep 2025601 PMAQI
12th Sep 2025602 PMAQI
12th Sep 2025553 PMAQI
12th Sep 2025534 PMAQI
12th Sep 2025565 PMAQI
12th Sep 2025546 PMAQI
12th Sep 2025547 PMAQI
12th Sep 2025608 PMAQI
12th Sep 2025619 PMAQI
12th Sep 20256010 PMAQI
12th Sep 20255611 PMAQI
13th Sep 20255712 AMAQI
13th Sep 2025571 AMAQI
13th Sep 2025582 AMAQI
13th Sep 2025583 AMAQI
13th Sep 2025584 AMAQI
28°C23/35°C
13th Sep 2025585 AMAQI
13th Sep 2025586 AMAQI
13th Sep 2025587 AMAQI
13th Sep 2025578 AMAQI
13th Sep 2025629 AMAQI
13th Sep 20256010 AMAQI
13th Sep 20256211 AMAQI
13th Sep 20256412 PMAQI
13th Sep 2025661 PMAQI
13th Sep 2025682 PMAQI
13th Sep 2025663 PMAQI
13th Sep 2025544 PMAQI
13th Sep 2025535 PMAQI
13th Sep 2025576 PMAQI
13th Sep 2025607 PMAQI
13th Sep 2025598 PMAQI
13th Sep 2025629 PMAQI
13th Sep 20256010 PMAQI
13th Sep 20256111 PMAQI
14th Sep 20255812 AMAQI
14th Sep 2025581 AMAQI
14th Sep 2025582 AMAQI
14th Sep 2025583 AMAQI
14th Sep 2025594 AMAQI
26°C24/31°C
14th Sep 2025595 AMAQI
14th Sep 2025596 AMAQI
14th Sep 2025597 AMAQI
14th Sep 2025638 AMAQI
14th Sep 2025589 AMAQI
14th Sep 20256310 AMAQI
14th Sep 20256211 AMAQI
14th Sep 20255912 PMAQI
14th Sep 2025571 PMAQI
14th Sep 2025522 PMAQI
14th Sep 2025523 PMAQI
14th Sep 2025554 PMAQI
14th Sep 2025515 PMAQI
14th Sep 2025566 PMAQI
14th Sep 2025587 PMAQI
14th Sep 2025608 PMAQI
14th Sep 2025549 PMAQI
14th Sep 20255710 PMAQI
14th Sep 20255711 PMAQI
15th Sep 20255612 AMAQI
15th Sep 2025581 AMAQI
15th Sep 2025582 AMAQI
15th Sep 2025583 AMAQI
15th Sep 2025574 AMAQI
28°C25/33°C
15th Sep 2025575 AMAQI
15th Sep 2025576 AMAQI
15th Sep 2025577 AMAQI
15th Sep 2025548 AMAQI
15th Sep 2025569 AMAQI
15th Sep 20255910 AMAQI
15th Sep 20255611 AMAQI
15th Sep 20256012 PMAQI
15th Sep 2025621 PMAQI
15th Sep 2025662 PMAQI
15th Sep 2025663 PMAQI
15th Sep 2025664 PMAQI
15th Sep 2025645 PMAQI
15th Sep 2025696 PMAQI
15th Sep 2025667 PMAQI
15th Sep 2025658 PMAQI
15th Sep 2025689 PMAQI
15th Sep 20256810 PMAQI
15th Sep 20256811 PMAQI
16th Sep 20256412 AMAQI
16th Sep 2025561 AMAQI
16th Sep 2025572 AMAQI
16th Sep 2025573 AMAQI
16th Sep 2025584 AMAQI
28°C24/35°C
16th Sep 2025585 AMAQI
16th Sep 2025586 AMAQI
16th Sep 2025587 AMAQI
16th Sep 2025728 AMAQI
16th Sep 2025629 AMAQI
16th Sep 20256610 AMAQI
16th Sep 20256611 AMAQI
16th Sep 20256912 PMAQI
16th Sep 2025681 PMAQI
16th Sep 2025622 PMAQI
16th Sep 2025633 PMAQI
16th Sep 2025634 PMAQI
16th Sep 2025635 PMAQI
16th Sep 2025626 PMAQI
16th Sep 2025627 PMAQI
16th Sep 2025648 PMAQI
16th Sep 2025649 PMAQI
16th Sep 20256610 PMAQI
16th Sep 20256811 PMAQI
17th Sep 20256512 AMAQI
17th Sep 2025581 AMAQI
17th Sep 2025592 AMAQI
17th Sep 2025593 AMAQI
17th Sep 2025614 AMAQI
29°C24/36°C
17th Sep 2025615 AMAQI
17th Sep 2025606 AMAQI
17th Sep 2025617 AMAQI
17th Sep 2025688 AMAQI
17th Sep 2025679 AMAQI
17th Sep 20256010 AMAQI
17th Sep 20256211 AMAQI
17th Sep 20256412 PMAQI
17th Sep 2025601 PMAQI
17th Sep 2025622 PMAQI
17th Sep 2025613 PMAQI
17th Sep 2025604 PMAQI
17th Sep 2025615 PMAQI
17th Sep 2025596 PMAQI
17th Sep 2025607 PMAQI
17th Sep 2025588 PMAQI
17th Sep 2025609 PMAQI
17th Sep 20256010 PMAQI
17th Sep 20255811 PMAQI
18th Sep 20255812 AMAQI
18th Sep 2025611 AMAQI
18th Sep 2025612 AMAQI
18th Sep 2025623 AMAQI
18th Sep 2025614 AMAQI
--°C/°C
18th Sep 2025625 AMAQI
5 AM11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
59AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 PM
59AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 PM (Avg. 59), while the lowest AQI was between 5 AM to 6 PM (Avg. 59).
Night time
Avg. Highest Time
12 AM - 11 PM
58AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
58AQI
10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 58), while the lowest AQI was between 12 AM to 11 PM (Avg. 58).
2025 Days Vs Air Quality
Yongan Station, Hangzhou, Zhejiang, China
2025
10%
25
63%
165
23%
61
3%
8
0.3%
1
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Good
25 DaysModerate
165 DaysPoor
61 DaysUnhealthy
8 DaysSevere
1 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 10%
Health Risk Level:
Extreme
In 2025, 10% of 260 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
Yongan Station, Hangzhou, Zhejiang, 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
151AQI
151AQI
2nd January 2025
139AQI
139AQI
3rd January 2025
151AQI
151AQI
4th January 2025
144AQI
144AQI
5th January 2025
160AQI
160AQI
6th January 2025
144AQI
144AQI
7th January 2025
130AQI
130AQI
8th January 2025
134AQI
134AQI
9th January 2025
97AQI
97AQI
10th January 2025
102AQI
102AQI
11th January 2025
112AQI
112AQI
12th January 2025
125AQI
125AQI
13th January 2025
138AQI
138AQI
14th January 2025
149AQI
149AQI
15th January 2025
85AQI
85AQI
16th January 2025
111AQI
111AQI
17th January 2025
117AQI
117AQI
18th January 2025
144AQI
144AQI
19th January 2025
146AQI
146AQI
20th January 2025
168AQI
168AQI
21st January 2025
178AQI
178AQI
22nd January 2025
161AQI
161AQI
23rd January 2025
140AQI
140AQI
24th January 2025
108AQI
108AQI
25th January 2025
87AQI
87AQI
26th January 2025
95AQI
95AQI
27th January 2025
66AQI
66AQI
28th January 2025
83AQI
83AQI
29th January 2025
123AQI
123AQI
30th January 2025
114AQI
114AQI
31st January 2025
134AQI
134AQI
1st February 2025
75AQI
75AQI
2nd February 2025
120AQI
120AQI
3rd February 2025
118AQI
118AQI
4th February 2025
116AQI
116AQI
5th February 2025
97AQI
97AQI
6th February 2025
106AQI
106AQI
7th February 2025
74AQI
74AQI
8th February 2025
73AQI
73AQI
9th February 2025
80AQI
80AQI
10th February 2025
106AQI
106AQI
11th February 2025
111AQI
111AQI
12th February 2025
144AQI
144AQI
13th February 2025
135AQI
135AQI
14th February 2025
139AQI
139AQI
15th February 2025
143AQI
143AQI
16th February 2025
119AQI
119AQI
17th February 2025
116AQI
116AQI
18th February 2025
98AQI
98AQI
19th February 2025
116AQI
116AQI
20th February 2025
84AQI
84AQI
21st February 2025
83AQI
83AQI
22nd February 2025
109AQI
109AQI
23rd February 2025
136AQI
136AQI
24th February 2025
136AQI
136AQI
25th February 2025
160AQI
160AQI
26th February 2025
152AQI
152AQI
27th February 2025
141AQI
141AQI
28th February 2025
118AQI
118AQI
1st March 2025
107AQI
107AQI
2nd March 2025
95AQI
95AQI
3rd March 2025
64AQI
64AQI
4th March 2025
68AQI
68AQI
5th March 2025
78AQI
78AQI
6th March 2025
91AQI
91AQI
7th March 2025
110AQI
110AQI
8th March 2025
129AQI
129AQI
9th March 2025
102AQI
102AQI
10th March 2025
139AQI
139AQI
11th March 2025
137AQI
137AQI
12th March 2025
110AQI
110AQI
13th March 2025
86AQI
86AQI
14th March 2025
77AQI
77AQI
15th March 2025
61AQI
61AQI
16th March 2025
86AQI
86AQI
17th March 2025
70AQI
70AQI
18th March 2025
80AQI
80AQI
19th March 2025
92AQI
92AQI
20th March 2025
93AQI
93AQI
21st March 2025
81AQI
81AQI
22nd March 2025
88AQI
88AQI
23rd March 2025
94AQI
94AQI
24th March 2025
98AQI
98AQI
25th March 2025
98AQI
98AQI
26th March 2025
124AQI
124AQI
27th March 2025
106AQI
106AQI
28th March 2025
88AQI
88AQI
29th March 2025
96AQI
96AQI
30th March 2025
83AQI
83AQI
31st March 2025
73AQI
73AQI
1st April 2025
86AQI
86AQI
2nd April 2025
95AQI
95AQI
3rd April 2025
103AQI
103AQI
4th April 2025
112AQI
112AQI
5th April 2025
97AQI
97AQI
6th April 2025
111AQI
111AQI
7th April 2025
103AQI
103AQI
8th April 2025
108AQI
108AQI
9th April 2025
116AQI
116AQI
10th April 2025
103AQI
103AQI
11th April 2025
103AQI
103AQI
12th April 2025
228AQI
228AQI
13th April 2025
93AQI
93AQI
14th April 2025
103AQI
103AQI
15th April 2025
78AQI
78AQI
16th April 2025
80AQI
80AQI
17th April 2025
89AQI
89AQI
18th April 2025
102AQI
102AQI
19th April 2025
122AQI
122AQI
20th April 2025
108AQI
108AQI
21st April 2025
106AQI
106AQI
22nd April 2025
99AQI
99AQI
23rd April 2025
95AQI
95AQI
24th April 2025
106AQI
106AQI
25th April 2025
74AQI
74AQI
26th April 2025
80AQI
80AQI
27th April 2025
75AQI
75AQI
28th April 2025
92AQI
92AQI
29th April 2025
82AQI
82AQI
30th April 2025
89AQI
89AQI
1st May 2025
80AQI
80AQI
2nd May 2025
81AQI
81AQI
3rd May 2025
82AQI
82AQI
4th May 2025
64AQI
64AQI
5th May 2025
81AQI
81AQI
6th May 2025
100AQI
100AQI
7th May 2025
100AQI
100AQI
8th May 2025
83AQI
83AQI
9th May 2025
58AQI
58AQI
10th May 2025
64AQI
64AQI
11th May 2025
68AQI
68AQI
12th May 2025
75AQI
75AQI
13th May 2025
79AQI
79AQI
14th May 2025
84AQI
84AQI
15th May 2025
126AQI
126AQI
16th May 2025
86AQI
86AQI
17th May 2025
85AQI
85AQI
18th May 2025
88AQI
88AQI
19th May 2025
83AQI
83AQI
20th May 2025
77AQI
77AQI
21st May 2025
59AQI
59AQI
22nd May 2025
73AQI
73AQI
23rd May 2025
55AQI
55AQI
24th May 2025
83AQI
83AQI
25th May 2025
92AQI
92AQI
26th May 2025
87AQI
87AQI
27th May 2025
86AQI
86AQI
28th May 2025
79AQI
79AQI
29th May 2025
74AQI
74AQI
30th May 2025
88AQI
88AQI
31st May 2025
87AQI
87AQI
1st June 2025
57AQI
57AQI
2nd June 2025
48AQI
48AQI
3rd June 2025
70AQI
70AQI
4th June 2025
84AQI
84AQI
5th June 2025
70AQI
70AQI
6th June 2025
73AQI
73AQI
7th June 2025
80AQI
80AQI
8th June 2025
50AQI
50AQI
9th June 2025
69AQI
69AQI
10th June 2025
68AQI
68AQI
11th June 2025
67AQI
67AQI
12th June 2025
66AQI
66AQI
13th June 2025
55AQI
55AQI
14th June 2025
59AQI
59AQI
15th June 2025
43AQI
43AQI
16th June 2025
51AQI
51AQI
17th June 2025
61AQI
61AQI
18th June 2025
61AQI
61AQI
19th June 2025
58AQI
58AQI
20th June 2025
53AQI
53AQI
21st June 2025
50AQI
50AQI
22nd June 2025
44AQI
44AQI
23rd June 2025
47AQI
47AQI
24th June 2025
53AQI
53AQI
25th June 2025
64AQI
64AQI
26th June 2025
64AQI
64AQI
27th June 2025
56AQI
56AQI
28th June 2025
51AQI
51AQI
29th June 2025
53AQI
53AQI
30th June 2025
56AQI
56AQI
1st July 2025
49AQI
49AQI
2nd July 2025
55AQI
55AQI
3rd July 2025
59AQI
59AQI
4th July 2025
60AQI
60AQI
5th July 2025
62AQI
62AQI
6th July 2025
60AQI
60AQI
7th July 2025
54AQI
54AQI
8th July 2025
49AQI
49AQI
9th July 2025
51AQI
51AQI
10th July 2025
59AQI
59AQI
11th July 2025
56AQI
56AQI
12th July 2025
53AQI
53AQI
13th July 2025
57AQI
57AQI
14th July 2025
61AQI
61AQI
15th July 2025
63AQI
63AQI
16th July 2025
64AQI
64AQI
17th July 2025
63AQI
63AQI
18th July 2025
64AQI
64AQI
19th July 2025
49AQI
49AQI
20th July 2025
48AQI
48AQI
21st July 2025
45AQI
45AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
45AQI
45AQI
24th July 2025
47AQI
47AQI
25th July 2025
50AQI
50AQI
26th July 2025
42AQI
42AQI
27th July 2025
44AQI
44AQI
28th July 2025
42AQI
42AQI
29th July 2025
47AQI
47AQI
30th July 2025
35AQI
35AQI
31st July 2025
41AQI
41AQI
1st August 2025
54AQI
54AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
58AQI
58AQI
4th August 2025
61AQI
61AQI
5th August 2025
58AQI
58AQI
6th August 2025
53AQI
53AQI
7th August 2025
49AQI
49AQI
8th August 2025
51AQI
51AQI
9th August 2025
54AQI
54AQI
10th August 2025
59AQI
59AQI
11th August 2025
59AQI
59AQI
12th August 2025
60AQI
60AQI
13th August 2025
52AQI
52AQI
14th August 2025
43AQI
43AQI
15th August 2025
43AQI
43AQI
16th August 2025
47AQI
47AQI
17th August 2025
51AQI
51AQI
18th August 2025
51AQI
51AQI
19th August 2025
54AQI
54AQI
20th August 2025
58AQI
58AQI
21st August 2025
63AQI
63AQI
22nd August 2025
57AQI
57AQI
23rd August 2025
53AQI
53AQI
24th August 2025
56AQI
56AQI
25th August 2025
56AQI
56AQI
26th August 2025
57AQI
57AQI
27th August 2025
55AQI
55AQI
28th August 2025
53AQI
53AQI
29th August 2025
53AQI
53AQI
30th August 2025
52AQI
52AQI
31st August 2025
53AQI
53AQI
1st September 2025
56AQI
56AQI
2nd September 2025
54AQI
54AQI
3rd September 2025
58AQI
58AQI
4th September 2025
71AQI
71AQI
5th September 2025
70AQI
70AQI
6th September 2025
67AQI
67AQI
7th September 2025
74AQI
74AQI
8th September 2025
66AQI
66AQI
9th September 2025
57AQI
57AQI
10th September 2025
55AQI
55AQI
11th September 2025
57AQI
57AQI
12th September 2025
58AQI
58AQI
13th September 2025
59AQI
59AQI
14th September 2025
57AQI
57AQI
15th September 2025
62AQI
62AQI
16th September 2025
62AQI
62AQI
17th September 2025
60AQI
60AQI
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
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
127AQI
114AQI
94AQI
101AQI
81AQI
59AQI
52AQI
54AQI
61AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202584AQI
6
19
6
8
18
2
22
9
15
14
1
30
1
6
24
15
16
4
27
17
25
165
61
8
1
Highest AQI recorded in
January127AQI
Lowest AQI recorded in
July52AQI
202478AQI
1
4
11
1
1
3
1
2
1
11
30
10
21
2
29
8
17
4
7
22
2
4
24
2
5
23
3
32
166
37
14
Highest AQI recorded in
January152AQI
Lowest AQI recorded in
July52AQI
2023119AQI
1
2
11
12
8
12
14
8
Highest AQI recorded in
December119AQI
Lowest AQI recorded in
November115AQI
202282AQI
1
5
4
1
5
13
3
3
14
11
3
14
3
2
25
4
9
19
2
10
12
1
2
5
21
1
1
2
30
119
39
8
Highest AQI recorded in
February121AQI
Lowest AQI recorded in
July54AQI
202179AQI
12
8
4
20
16
14
1
9
21
1
4
22
4
5
13
5
1
19
7
2
12
12
6
39
133
38
8
Highest AQI recorded in
December121AQI
Lowest AQI recorded in
July48AQI
202076AQI
3
8
2
14
7
17
1
13
16
1
13
16
1
11
19
3
23
3
1
6
22
3
5
18
7
1
7
19
4
55
160
44
5
Highest AQI recorded in
December116AQI
Lowest AQI recorded in
June56AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
119AQILeast Polluted Year Recorded
2020(Avg.)
76AQIYongan Station's annual 2025 AQI (84) shows an average percentage change of -0.8% (improved AQI) compared to previous years: 2020 (76), 2021 (79), 2022 (82), 2023 (119), 2024 (78).
