City Archives Sub Station, Basuo, Hainan, 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
City Archives Sub Station, Basuo, Hainan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
30th Nov 2021
114AQILowest AQI recorded on
22nd Nov 2022
13AQISame Day Analysis (11th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 64 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 11th Nov - 12th Nov 2025
City Archives Sub Station, Basuo, Hainan, China
AQI
Day
Night
.
6 AM11th Nov 2025
6 PM
5 AM12th Nov 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
4AM12th Nov
67AQI
Avg. Lowest Time
12PM11th Nov
53AQI
In the last 24 hours,
City Archives Sub Station's AQI reached its highest point of 67 at 4 AM during the Night, while the lowest point, 53, was recorded at 12 PM during the Night between 11th Nov and 12th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
City Archives Sub Station, Basuo, Hainan, China
OctNov
13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th
Day
Night
13th Oct 2025696 AMAQI
13th Oct 2025657 AMAQI
13th Oct 2025608 AMAQI
13th Oct 2025589 AMAQI
13th Oct 20255710 AMAQI
13th Oct 20255211 AMAQI
13th Oct 20255112 PMAQI
13th Oct 2025451 PMAQI
13th Oct 2025462 PMAQI
13th Oct 2025383 PMAQI
13th Oct 2025164 PMAQI
13th Oct 2025165 PMAQI
13th Oct 2025236 PMAQI
13th Oct 2025297 PMAQI
13th Oct 2025278 PMAQI
13th Oct 2025399 PMAQI
13th Oct 20255010 PMAQI
13th Oct 20253811 PMAQI
14th Oct 20255812 AMAQI
14th Oct 2025601 AMAQI
14th Oct 2025622 AMAQI
14th Oct 2025593 AMAQI
14th Oct 2025584 AMAQI
14th Oct 2025575 AMAQI
27°C26/29°C
14th Oct 2025586 AMAQI
14th Oct 2025597 AMAQI
14th Oct 2025578 AMAQI
14th Oct 2025549 AMAQI
14th Oct 20255110 AMAQI
14th Oct 20255311 AMAQI
14th Oct 20255012 PMAQI
14th Oct 2025541 PMAQI
14th Oct 2025572 PMAQI
14th Oct 2025573 PMAQI
14th Oct 2025574 PMAQI
14th Oct 2025575 PMAQI
14th Oct 2025556 PMAQI
14th Oct 2025427 PMAQI
14th Oct 2025508 PMAQI
14th Oct 2025599 PMAQI
14th Oct 20255910 PMAQI
14th Oct 20256611 PMAQI
15th Oct 20256712 AMAQI
15th Oct 2025651 AMAQI
15th Oct 2025642 AMAQI
15th Oct 2025683 AMAQI
15th Oct 2025634 AMAQI
15th Oct 2025675 AMAQI
27°C26/29°C
15th Oct 2025666 AMAQI
15th Oct 2025637 AMAQI
15th Oct 2025648 AMAQI
15th Oct 2025649 AMAQI
15th Oct 20256310 AMAQI
15th Oct 20256111 AMAQI
15th Oct 20255812 PMAQI
15th Oct 2025571 PMAQI
15th Oct 2025582 PMAQI
15th Oct 2025603 PMAQI
15th Oct 2025604 PMAQI
15th Oct 2025545 PMAQI
15th Oct 2025546 PMAQI
15th Oct 2025547 PMAQI
15th Oct 2025558 PMAQI
15th Oct 2025619 PMAQI
15th Oct 20256210 PMAQI
15th Oct 20256311 PMAQI
16th Oct 20257312 AMAQI
16th Oct 2025701 AMAQI
16th Oct 2025732 AMAQI
16th Oct 2025713 AMAQI
16th Oct 2025714 AMAQI
16th Oct 2025725 AMAQI
27°C26/30°C
16th Oct 2025586 AMAQI
16th Oct 2025617 AMAQI
16th Oct 2025648 AMAQI
16th Oct 2025639 AMAQI
16th Oct 20256310 AMAQI
16th Oct 20256111 AMAQI
16th Oct 20256112 PMAQI
16th Oct 2025571 PMAQI
16th Oct 2025572 PMAQI
16th Oct 2025593 PMAQI
16th Oct 2025584 PMAQI
16th Oct 2025555 PMAQI
16th Oct 2025576 PMAQI
16th Oct 2025577 PMAQI
16th Oct 2025628 PMAQI
16th Oct 2025669 PMAQI
16th Oct 20256510 PMAQI
16th Oct 20256711 PMAQI
17th Oct 20256912 AMAQI
17th Oct 2025671 AMAQI
17th Oct 2025602 AMAQI
17th Oct 2025613 AMAQI
17th Oct 2025604 AMAQI
17th Oct 2025585 AMAQI
28°C25/31°C
17th Oct 2025576 AMAQI
17th Oct 2025587 AMAQI
17th Oct 2025588 AMAQI
17th Oct 2025609 AMAQI
17th Oct 20256110 AMAQI
17th Oct 20255711 AMAQI
17th Oct 20255612 PMAQI
17th Oct 2025571 PMAQI
17th Oct 2025572 PMAQI
17th Oct 2025563 PMAQI
17th Oct 2025554 PMAQI
17th Oct 2025555 PMAQI
17th Oct 2025556 PMAQI
17th Oct 2025547 PMAQI
17th Oct 2025558 PMAQI
17th Oct 2025579 PMAQI
17th Oct 20256610 PMAQI
17th Oct 20255611 PMAQI
18th Oct 20255612 AMAQI
18th Oct 2025551 AMAQI
18th Oct 2025572 AMAQI
18th Oct 2025553 AMAQI
18th Oct 2025624 AMAQI
18th Oct 2025625 AMAQI
27°C25/30°C
18th Oct 2025626 AMAQI
18th Oct 2025587 AMAQI
18th Oct 2025568 AMAQI
18th Oct 2025579 AMAQI
18th Oct 20255510 AMAQI
18th Oct 20255711 AMAQI
18th Oct 20255912 PMAQI
18th Oct 2025581 PMAQI
18th Oct 2025582 PMAQI
18th Oct 2025563 PMAQI
18th Oct 2025554 PMAQI
18th Oct 2025545 PMAQI
18th Oct 2025526 PMAQI
18th Oct 2025547 PMAQI
18th Oct 2025608 PMAQI
18th Oct 2025679 PMAQI
18th Oct 20256810 PMAQI
18th Oct 20256311 PMAQI
19th Oct 20256212 AMAQI
19th Oct 2025611 AMAQI
19th Oct 2025582 AMAQI
19th Oct 2025613 AMAQI
19th Oct 2025644 AMAQI
19th Oct 2025625 AMAQI
27°C25/31°C
19th Oct 2025626 AMAQI
19th Oct 2025627 AMAQI
19th Oct 2025628 AMAQI
19th Oct 2025619 AMAQI
19th Oct 20256710 AMAQI
19th Oct 20256811 AMAQI
19th Oct 20256612 PMAQI
19th Oct 2025601 PMAQI
19th Oct 2025612 PMAQI
19th Oct 2025643 PMAQI
19th Oct 2025694 PMAQI
19th Oct 2025695 PMAQI
19th Oct 2025726 PMAQI
19th Oct 2025727 PMAQI
19th Oct 2025768 PMAQI
19th Oct 2025729 PMAQI
19th Oct 20257410 PMAQI
19th Oct 20257711 PMAQI
20th Oct 20256612 AMAQI
20th Oct 2025621 AMAQI
20th Oct 2025622 AMAQI
20th Oct 2025643 AMAQI
20th Oct 2025624 AMAQI
20th Oct 2025655 AMAQI
27°C25/30°C
20th Oct 2025656 AMAQI
20th Oct 2025667 AMAQI
20th Oct 2025648 AMAQI
20th Oct 2025669 AMAQI
20th Oct 20256510 AMAQI
20th Oct 20257011 AMAQI
20th Oct 20256612 PMAQI
20th Oct 2025661 PMAQI
20th Oct 2025652 PMAQI
20th Oct 2025653 PMAQI
20th Oct 2025654 PMAQI
20th Oct 2025625 PMAQI
20th Oct 2025616 PMAQI
20th Oct 2025617 PMAQI
20th Oct 2025618 PMAQI
20th Oct 2025619 PMAQI
20th Oct 20255910 PMAQI
20th Oct 20255911 PMAQI
21st Oct 20255712 AMAQI
21st Oct 2025531 AMAQI
21st Oct 2025522 AMAQI
21st Oct 2025523 AMAQI
21st Oct 2025524 AMAQI
21st Oct 2025525 AMAQI
26°C25/28°C
21st Oct 2025546 AMAQI
21st Oct 2025537 AMAQI
21st Oct 2025538 AMAQI
21st Oct 2025529 AMAQI
21st Oct 20255010 AMAQI
21st Oct 20255211 AMAQI
21st Oct 20255212 PMAQI
21st Oct 2025511 PMAQI
21st Oct 2025522 PMAQI
21st Oct 2025523 PMAQI
21st Oct 2025524 PMAQI
21st Oct 2025515 PMAQI
21st Oct 2025526 PMAQI
21st Oct 2025527 PMAQI
21st Oct 2025538 PMAQI
21st Oct 2025199 PMAQI
21st Oct 20253010 PMAQI
21st Oct 20252911 PMAQI
22nd Oct 20253012 AMAQI
22nd Oct 2025251 AMAQI
22nd Oct 2025242 AMAQI
22nd Oct 2025343 AMAQI
22nd Oct 2025374 AMAQI
22nd Oct 2025355 AMAQI
24°C23/25°C
22nd Oct 2025396 AMAQI
22nd Oct 2025487 AMAQI
22nd Oct 2025448 AMAQI
22nd Oct 2025409 AMAQI
22nd Oct 20254210 AMAQI
22nd Oct 20253511 AMAQI
22nd Oct 20253812 PMAQI
22nd Oct 2025361 PMAQI
22nd Oct 2025322 PMAQI
22nd Oct 2025373 PMAQI
22nd Oct 2025404 PMAQI
22nd Oct 2025425 PMAQI
22nd Oct 2025486 PMAQI
22nd Oct 2025527 PMAQI
22nd Oct 2025528 PMAQI
22nd Oct 2025409 PMAQI
22nd Oct 20252910 PMAQI
22nd Oct 20253011 PMAQI
23rd Oct 20253712 AMAQI
23rd Oct 2025341 AMAQI
23rd Oct 2025322 AMAQI
23rd Oct 2025353 AMAQI
23rd Oct 2025364 AMAQI
23rd Oct 2025395 AMAQI
21°C20/21°C
23rd Oct 2025396 AMAQI
23rd Oct 2025457 AMAQI
23rd Oct 2025528 AMAQI
23rd Oct 2025529 AMAQI
23rd Oct 20255110 AMAQI
23rd Oct 20253111 AMAQI
23rd Oct 20253412 PMAQI
23rd Oct 2025351 PMAQI
23rd Oct 2025352 PMAQI
23rd Oct 2025453 PMAQI
23rd Oct 2025484 PMAQI
23rd Oct 2025595 PMAQI
23rd Oct 2025636 PMAQI
23rd Oct 2025637 PMAQI
23rd Oct 2025648 PMAQI
23rd Oct 2025569 PMAQI
23rd Oct 20255610 PMAQI
23rd Oct 20255711 PMAQI
24th Oct 20255712 AMAQI
24th Oct 2025591 AMAQI
24th Oct 2025582 AMAQI
24th Oct 2025453 AMAQI
24th Oct 2025504 AMAQI
24th Oct 2025505 AMAQI
21°C20/21°C
24th Oct 2025586 AMAQI
24th Oct 2025707 AMAQI
24th Oct 2025708 AMAQI
24th Oct 2025709 AMAQI
24th Oct 20257310 AMAQI
24th Oct 20256811 AMAQI
24th Oct 20255712 PMAQI
24th Oct 2025611 PMAQI
24th Oct 2025602 PMAQI
24th Oct 2025713 PMAQI
24th Oct 2025824 PMAQI
24th Oct 2025655 PMAQI
24th Oct 2025676 PMAQI
24th Oct 2025747 PMAQI
24th Oct 2025768 PMAQI
24th Oct 2025699 PMAQI
24th Oct 20256910 PMAQI
24th Oct 20256811 PMAQI
25th Oct 20256712 AMAQI
25th Oct 2025651 AMAQI
25th Oct 2025672 AMAQI
25th Oct 2025643 AMAQI
25th Oct 2025584 AMAQI
25th Oct 2025585 AMAQI
23°C20/25°C
25th Oct 2025586 AMAQI
25th Oct 2025587 AMAQI
25th Oct 2025588 AMAQI
25th Oct 2025589 AMAQI
25th Oct 20255910 AMAQI
25th Oct 20256011 AMAQI
25th Oct 20256112 PMAQI
25th Oct 2025651 PMAQI
25th Oct 2025672 PMAQI
25th Oct 2025663 PMAQI
25th Oct 2025654 PMAQI
25th Oct 2025645 PMAQI
25th Oct 2025706 PMAQI
25th Oct 2025747 PMAQI
25th Oct 2025768 PMAQI
25th Oct 2025789 PMAQI
25th Oct 20256910 PMAQI
25th Oct 20257411 PMAQI
26th Oct 20257312 AMAQI
26th Oct 2025681 AMAQI
26th Oct 2025672 AMAQI
26th Oct 2025683 AMAQI
26th Oct 2025694 AMAQI
26th Oct 2025695 AMAQI
24°C22/27°C
26th Oct 2025706 AMAQI
26th Oct 2025657 AMAQI
26th Oct 2025678 AMAQI
26th Oct 2025689 AMAQI
26th Oct 20256910 AMAQI
26th Oct 20257311 AMAQI
26th Oct 20258012 PMAQI
26th Oct 2025831 PMAQI
26th Oct 2025842 PMAQI
26th Oct 2025853 PMAQI
26th Oct 2025854 PMAQI
26th Oct 2025785 PMAQI
26th Oct 2025786 PMAQI
26th Oct 2025767 PMAQI
26th Oct 2025768 PMAQI
26th Oct 2025789 PMAQI
26th Oct 20257710 PMAQI
26th Oct 20257311 PMAQI
27th Oct 20257212 AMAQI
27th Oct 2025721 AMAQI
27th Oct 2025722 AMAQI
27th Oct 2025733 AMAQI
27th Oct 2025734 AMAQI
27th Oct 2025745 AMAQI
25°C24/27°C
27th Oct 2025726 AMAQI
27th Oct 2025747 AMAQI
27th Oct 2025728 AMAQI
27th Oct 2025769 AMAQI
27th Oct 20257210 AMAQI
27th Oct 20256111 AMAQI
27th Oct 20255712 PMAQI
27th Oct 2025601 PMAQI
27th Oct 2025602 PMAQI
27th Oct 2025563 PMAQI
27th Oct 2025574 PMAQI
27th Oct 2025575 PMAQI
27th Oct 2025576 PMAQI
27th Oct 2025587 PMAQI
27th Oct 2025538 PMAQI
27th Oct 2025499 PMAQI
27th Oct 20254010 PMAQI
27th Oct 20253711 PMAQI
28th Oct 20253412 AMAQI
28th Oct 2025331 AMAQI
28th Oct 2025592 AMAQI
28th Oct 2025623 AMAQI
28th Oct 2025634 AMAQI
28th Oct 2025635 AMAQI
23°C22/24°C
28th Oct 2025546 AMAQI
28th Oct 2025547 AMAQI
28th Oct 2025598 AMAQI
28th Oct 2025649 AMAQI
28th Oct 20256210 AMAQI
28th Oct 20256011 AMAQI
28th Oct 20255512 PMAQI
28th Oct 2025471 PMAQI
28th Oct 2025462 PMAQI
28th Oct 2025533 PMAQI
28th Oct 2025534 PMAQI
28th Oct 2025565 PMAQI
28th Oct 2025576 PMAQI
28th Oct 2025587 PMAQI
28th Oct 2025598 PMAQI
28th Oct 2025619 PMAQI
28th Oct 20256710 PMAQI
28th Oct 20256811 PMAQI
29th Oct 20256512 AMAQI
29th Oct 2025681 AMAQI
29th Oct 2025652 AMAQI
29th Oct 2025703 AMAQI
29th Oct 2025744 AMAQI
29th Oct 2025625 AMAQI
23°C23/24°C
29th Oct 2025676 AMAQI
29th Oct 2025747 AMAQI
29th Oct 2025778 AMAQI
29th Oct 2025809 AMAQI
29th Oct 20258110 AMAQI
29th Oct 20258211 AMAQI
29th Oct 20258412 PMAQI
29th Oct 2025931 PMAQI
29th Oct 2025832 PMAQI
29th Oct 2025693 PMAQI
29th Oct 2025634 PMAQI
29th Oct 2025585 PMAQI
29th Oct 2025556 PMAQI
29th Oct 2025557 PMAQI
29th Oct 2025568 PMAQI
29th Oct 2025549 PMAQI
29th Oct 20254210 PMAQI
29th Oct 20253211 PMAQI
30th Oct 20252412 AMAQI
30th Oct 2025221 AMAQI
30th Oct 2025222 AMAQI
30th Oct 2025183 AMAQI
30th Oct 2025184 AMAQI
30th Oct 2025255 AMAQI
24°C23/26°C
30th Oct 2025286 AMAQI
30th Oct 2025237 AMAQI
30th Oct 2025228 AMAQI
30th Oct 2025229 AMAQI
30th Oct 20252210 AMAQI
30th Oct 20252211 AMAQI
30th Oct 20252212 PMAQI
30th Oct 2025221 PMAQI
30th Oct 2025262 PMAQI
30th Oct 2025263 PMAQI
30th Oct 2025284 PMAQI
30th Oct 2025285 PMAQI
30th Oct 2025336 PMAQI
30th Oct 2025317 PMAQI
30th Oct 2025308 PMAQI
30th Oct 2025349 PMAQI
30th Oct 20254610 PMAQI
30th Oct 20254611 PMAQI
31st Oct 20254412 AMAQI
31st Oct 2025391 AMAQI
31st Oct 2025302 AMAQI
31st Oct 2025293 AMAQI
31st Oct 2025264 AMAQI
31st Oct 2025235 AMAQI
26°C25/28°C
31st Oct 2025326 AMAQI
31st Oct 2025347 AMAQI
31st Oct 2025328 AMAQI
31st Oct 2025309 AMAQI
31st Oct 20253910 AMAQI
31st Oct 20253911 AMAQI
31st Oct 20253612 PMAQI
31st Oct 2025321 PMAQI
31st Oct 2025322 PMAQI
31st Oct 2025353 PMAQI
31st Oct 2025514 PMAQI
31st Oct 2025535 PMAQI
31st Oct 2025536 PMAQI
31st Oct 2025547 PMAQI
31st Oct 2025588 PMAQI
31st Oct 2025639 PMAQI
31st Oct 20256410 PMAQI
31st Oct 20256911 PMAQI
1st Nov 20257112 AMAQI
1st Nov 2025751 AMAQI
1st Nov 2025772 AMAQI
1st Nov 2025663 AMAQI
1st Nov 2025704 AMAQI
1st Nov 2025665 AMAQI
25°C24/26°C
1st Nov 2025736 AMAQI
1st Nov 2025697 AMAQI
1st Nov 2025708 AMAQI
1st Nov 2025799 AMAQI
1st Nov 20257210 AMAQI
1st Nov 20255811 AMAQI
1st Nov 20256312 PMAQI
1st Nov 2025661 PMAQI
1st Nov 2025652 PMAQI
1st Nov 2025653 PMAQI
1st Nov 2025674 PMAQI
1st Nov 2025655 PMAQI
1st Nov 2025706 PMAQI
1st Nov 2025697 PMAQI
1st Nov 2025698 PMAQI
1st Nov 2025709 PMAQI
1st Nov 20256810 PMAQI
1st Nov 20256611 PMAQI
2nd Nov 20256812 AMAQI
2nd Nov 2025641 AMAQI
2nd Nov 2025702 AMAQI
2nd Nov 2025703 AMAQI
2nd Nov 2025694 AMAQI
2nd Nov 2025665 AMAQI
25°C24/27°C
2nd Nov 2025666 AMAQI
2nd Nov 2025597 AMAQI
2nd Nov 2025578 AMAQI
2nd Nov 2025579 AMAQI
2nd Nov 20255710 AMAQI
2nd Nov 20255711 AMAQI
2nd Nov 20255612 PMAQI
2nd Nov 2025571 PMAQI
2nd Nov 2025592 PMAQI
2nd Nov 2025593 PMAQI
2nd Nov 2025664 PMAQI
2nd Nov 2025765 PMAQI
2nd Nov 2025796 PMAQI
2nd Nov 2025867 PMAQI
2nd Nov 2025818 PMAQI
2nd Nov 2025799 PMAQI
2nd Nov 20257910 PMAQI
2nd Nov 20257411 PMAQI
3rd Nov 20256812 AMAQI
3rd Nov 2025601 AMAQI
3rd Nov 2025582 AMAQI
3rd Nov 2025573 AMAQI
3rd Nov 2025594 AMAQI
3rd Nov 2025595 AMAQI
25°C23/27°C
3rd Nov 2025676 AMAQI
3rd Nov 2025707 AMAQI
3rd Nov 2025738 AMAQI
3rd Nov 2025719 AMAQI
3rd Nov 20256610 AMAQI
3rd Nov 20256011 AMAQI
3rd Nov 20256612 PMAQI
3rd Nov 2025631 PMAQI
3rd Nov 2025632 PMAQI
3rd Nov 2025633 PMAQI
3rd Nov 2025564 PMAQI
3rd Nov 2025565 PMAQI
3rd Nov 2025576 PMAQI
3rd Nov 2025567 PMAQI
3rd Nov 2025598 PMAQI
3rd Nov 2025589 PMAQI
3rd Nov 20255610 PMAQI
3rd Nov 20255611 PMAQI
4th Nov 20255112 AMAQI
4th Nov 2025521 AMAQI
4th Nov 2025512 AMAQI
4th Nov 2025523 AMAQI
4th Nov 2025544 AMAQI
4th Nov 2025545 AMAQI
23°C23/23°C
4th Nov 2025556 AMAQI
4th Nov 2025547 AMAQI
4th Nov 2025548 AMAQI
4th Nov 2025539 AMAQI
4th Nov 20255210 AMAQI
4th Nov 20255211 AMAQI
4th Nov 20255612 PMAQI
4th Nov 2025591 PMAQI
4th Nov 2025572 PMAQI
4th Nov 2025423 PMAQI
4th Nov 2025384 PMAQI
4th Nov 2025345 PMAQI
4th Nov 2025366 PMAQI
4th Nov 2025407 PMAQI
4th Nov 2025368 PMAQI
4th Nov 2025279 PMAQI
4th Nov 20252710 PMAQI
4th Nov 20252811 PMAQI
5th Nov 20252512 AMAQI
5th Nov 2025201 AMAQI
5th Nov 2025172 AMAQI
5th Nov 2025183 AMAQI
5th Nov 2025174 AMAQI
5th Nov 2025175 AMAQI
21°C20/22°C
5th Nov 2025176 AMAQI
5th Nov 2025177 AMAQI
5th Nov 2025208 AMAQI
5th Nov 2025229 AMAQI
5th Nov 20252210 AMAQI
5th Nov 20252211 AMAQI
5th Nov 20252212 PMAQI
5th Nov 2025231 PMAQI
5th Nov 2025282 PMAQI
5th Nov 2025303 PMAQI
5th Nov 2025284 PMAQI
5th Nov 2025255 PMAQI
5th Nov 2025336 PMAQI
5th Nov 2025447 PMAQI
5th Nov 2025518 PMAQI
5th Nov 2025539 PMAQI
5th Nov 20255710 PMAQI
5th Nov 20255911 PMAQI
6th Nov 20255312 AMAQI
6th Nov 2025531 AMAQI
6th Nov 2025532 AMAQI
6th Nov 2025513 AMAQI
6th Nov 2025494 AMAQI
6th Nov 2025445 AMAQI
24°C22/26°C
6th Nov 2025456 AMAQI
6th Nov 2025387 AMAQI
6th Nov 2025408 AMAQI
6th Nov 2025449 AMAQI
6th Nov 20254010 AMAQI
6th Nov 20255011 AMAQI
6th Nov 20255012 PMAQI
6th Nov 2025511 PMAQI
6th Nov 2025542 PMAQI
6th Nov 2025713 PMAQI
6th Nov 2025894 PMAQI
6th Nov 2025855 PMAQI
6th Nov 2025846 PMAQI
6th Nov 2025837 PMAQI
6th Nov 2025678 PMAQI
6th Nov 2025559 PMAQI
6th Nov 20255510 PMAQI
6th Nov 20255711 PMAQI
7th Nov 20256812 AMAQI
7th Nov 2025721 AMAQI
7th Nov 2025762 AMAQI
7th Nov 2025703 AMAQI
7th Nov 2025574 AMAQI
7th Nov 2025555 AMAQI
25°C23/29°C
7th Nov 2025216 AMAQI
7th Nov 2025227 AMAQI
7th Nov 2025228 AMAQI
7th Nov 2025229 AMAQI
7th Nov 20252310 AMAQI
7th Nov 20252711 AMAQI
7th Nov 20254112 PMAQI
7th Nov 2025501 PMAQI
7th Nov 2025502 PMAQI
7th Nov 2025503 PMAQI
7th Nov 2025504 PMAQI
7th Nov 2025505 PMAQI
7th Nov 2025496 PMAQI
7th Nov 2025467 PMAQI
7th Nov 2025508 PMAQI
7th Nov 2025539 PMAQI
7th Nov 20255510 PMAQI
7th Nov 20255611 PMAQI
8th Nov 20255612 AMAQI
8th Nov 2025551 AMAQI
8th Nov 2025502 AMAQI
8th Nov 2025513 AMAQI
8th Nov 2025514 AMAQI
8th Nov 2025515 AMAQI
27°C24/31°C
8th Nov 2025506 AMAQI
8th Nov 2025457 AMAQI
8th Nov 2025458 AMAQI
8th Nov 2025449 AMAQI
8th Nov 20254110 AMAQI
8th Nov 20254211 AMAQI
8th Nov 20254512 PMAQI
8th Nov 2025461 PMAQI
8th Nov 2025472 PMAQI
8th Nov 2025453 PMAQI
8th Nov 2025444 PMAQI
8th Nov 2025445 PMAQI
8th Nov 2025406 PMAQI
8th Nov 2025407 PMAQI
8th Nov 2025458 PMAQI
8th Nov 2025469 PMAQI
8th Nov 20254610 PMAQI
8th Nov 20254511 PMAQI
9th Nov 20254512 AMAQI
9th Nov 2025461 AMAQI
9th Nov 2025412 AMAQI
9th Nov 2025473 AMAQI
9th Nov 2025504 AMAQI
9th Nov 2025535 AMAQI
27°C25/29°C
9th Nov 2025526 AMAQI
9th Nov 2025507 AMAQI
9th Nov 2025508 AMAQI
9th Nov 2025509 AMAQI
9th Nov 20255010 AMAQI
9th Nov 20255011 AMAQI
9th Nov 20254812 PMAQI
9th Nov 2025451 PMAQI
9th Nov 2025422 PMAQI
9th Nov 2025423 PMAQI
9th Nov 2025474 PMAQI
9th Nov 2025515 PMAQI
9th Nov 2025516 PMAQI
9th Nov 2025527 PMAQI
9th Nov 2025548 PMAQI
9th Nov 2025579 PMAQI
9th Nov 20255710 PMAQI
9th Nov 20256311 PMAQI
10th Nov 20256112 AMAQI
10th Nov 2025611 AMAQI
10th Nov 2025622 AMAQI
10th Nov 2025633 AMAQI
10th Nov 2025634 AMAQI
10th Nov 2025635 AMAQI
26°C25/28°C
10th Nov 2025656 AMAQI
10th Nov 2025707 AMAQI
10th Nov 2025728 AMAQI
10th Nov 2025729 AMAQI
10th Nov 20257210 AMAQI
10th Nov 20257311 AMAQI
10th Nov 20257312 PMAQI
10th Nov 2025691 PMAQI
10th Nov 2025632 PMAQI
10th Nov 2025643 PMAQI
10th Nov 2025644 PMAQI
10th Nov 2025685 PMAQI
10th Nov 2025706 PMAQI
10th Nov 2025737 PMAQI
10th Nov 2025728 PMAQI
10th Nov 2025799 PMAQI
10th Nov 20257510 PMAQI
10th Nov 20257111 PMAQI
11th Nov 20256612 AMAQI
11th Nov 2025631 AMAQI
11th Nov 2025612 AMAQI
11th Nov 2025633 AMAQI
11th Nov 2025624 AMAQI
11th Nov 2025605 AMAQI
25°C24/27°C
11th Nov 2025616 AMAQI
11th Nov 2025607 AMAQI
11th Nov 2025578 AMAQI
11th Nov 2025579 AMAQI
11th Nov 20255810 AMAQI
11th Nov 20255511 AMAQI
11th Nov 20255312 PMAQI
11th Nov 2025621 PMAQI
11th Nov 2025622 PMAQI
11th Nov 2025593 PMAQI
11th Nov 2025584 PMAQI
11th Nov 2025585 PMAQI
11th Nov 2025566 PMAQI
11th Nov 2025567 PMAQI
11th Nov 2025568 PMAQI
11th Nov 2025599 PMAQI
11th Nov 20256010 PMAQI
11th Nov 20256211 PMAQI
12th Nov 20256512 AMAQI
12th Nov 2025651 AMAQI
12th Nov 2025662 AMAQI
12th Nov 2025663 AMAQI
12th Nov 2025674 AMAQI
12th Nov 2025675 AMAQI
--°C/°C
12th Nov 2025616 AMAQI
6 AM12th Nov 2025557 AMAQI
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 6 PM
55AQI
13 hours / Day
390 hours / Month
Avg. Lowest Time
6 AM - 6 PM
55AQI
13 hours / Day
390 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 PM (Avg. 55), while the lowest AQI was between 6 AM to 6 PM (Avg. 55).
Night time
Avg. Highest Time
7 PM - 11 PM
57AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
12 AM - 5 AM
56AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 11 PM (Avg. 57), while the lowest AQI was between 12 AM to 5 AM (Avg. 56).
2025 Days Vs Air Quality
City Archives Sub Station, Basuo, Hainan, China
2025
58%
182
41%
129
1%
4
Total number of days with different AQI categories in last 315 days in 2025 (50 days remaining)
Good
182 DaysModerate
129 DaysPoor
4 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 58%
Health Risk Level:
Considerable
In 2025, 58% of 315 days were within WHO’s safe air quality limits, and 42% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
City Archives Sub Station, Basuo, Hainan, 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
102AQI
102AQI
2nd January 2025
81AQI
81AQI
3rd January 2025
95AQI
95AQI
4th January 2025
88AQI
88AQI
5th January 2025
103AQI
103AQI
6th January 2025
93AQI
93AQI
7th January 2025
83AQI
83AQI
8th January 2025
88AQI
88AQI
9th January 2025
97AQI
97AQI
10th January 2025
91AQI
91AQI
11th January 2025
86AQI
86AQI
12th January 2025
87AQI
87AQI
13th January 2025
73AQI
73AQI
14th January 2025
73AQI
73AQI
15th January 2025
88AQI
88AQI
16th January 2025
92AQI
92AQI
17th January 2025
99AQI
99AQI
18th January 2025
89AQI
89AQI
19th January 2025
98AQI
98AQI
20th January 2025
100AQI
100AQI
21st January 2025
88AQI
88AQI
22nd January 2025
99AQI
99AQI
23rd January 2025
88AQI
88AQI
24th January 2025
66AQI
66AQI
25th January 2025
69AQI
69AQI
26th January 2025
51AQI
51AQI
27th January 2025
63AQI
63AQI
28th January 2025
67AQI
67AQI
29th January 2025
68AQI
68AQI
30th January 2025
66AQI
66AQI
31st January 2025
53AQI
53AQI
1st February 2025
46AQI
46AQI
2nd February 2025
58AQI
58AQI
3rd February 2025
61AQI
61AQI
4th February 2025
51AQI
51AQI
5th February 2025
47AQI
47AQI
6th February 2025
60AQI
60AQI
7th February 2025
58AQI
58AQI
8th February 2025
54AQI
54AQI
9th February 2025
64AQI
64AQI
10th February 2025
59AQI
59AQI
11th February 2025
57AQI
57AQI
12th February 2025
58AQI
58AQI
13th February 2025
61AQI
61AQI
14th February 2025
50AQI
50AQI
15th February 2025
68AQI
68AQI
16th February 2025
58AQI
58AQI
17th February 2025
80AQI
80AQI
18th February 2025
61AQI
61AQI
19th February 2025
92AQI
92AQI
20th February 2025
70AQI
70AQI
21st February 2025
65AQI
65AQI
22nd February 2025
49AQI
49AQI
23rd February 2025
43AQI
43AQI
24th February 2025
35AQI
35AQI
25th February 2025
35AQI
35AQI
26th February 2025
48AQI
48AQI
27th February 2025
58AQI
58AQI
28th February 2025
53AQI
53AQI
1st March 2025
58AQI
58AQI
2nd March 2025
50AQI
50AQI
3rd March 2025
57AQI
57AQI
4th March 2025
54AQI
54AQI
5th March 2025
70AQI
70AQI
6th March 2025
34AQI
34AQI
7th March 2025
45AQI
45AQI
8th March 2025
30AQI
30AQI
9th March 2025
57AQI
57AQI
10th March 2025
61AQI
61AQI
11th March 2025
59AQI
59AQI
12th March 2025
48AQI
48AQI
13th March 2025
47AQI
47AQI
14th March 2025
40AQI
40AQI
15th March 2025
48AQI
48AQI
16th March 2025
48AQI
48AQI
17th March 2025
67AQI
67AQI
18th March 2025
60AQI
60AQI
19th March 2025
74AQI
74AQI
20th March 2025
69AQI
69AQI
21st March 2025
83AQI
83AQI
22nd March 2025
72AQI
72AQI
23rd March 2025
74AQI
74AQI
24th March 2025
68AQI
68AQI
25th March 2025
61AQI
61AQI
26th March 2025
53AQI
53AQI
27th March 2025
53AQI
53AQI
28th March 2025
68AQI
68AQI
29th March 2025
42AQI
42AQI
30th March 2025
30AQI
30AQI
31st March 2025
31AQI
31AQI
1st April 2025
36AQI
36AQI
2nd April 2025
56AQI
56AQI
3rd April 2025
61AQI
61AQI
4th April 2025
59AQI
59AQI
5th April 2025
58AQI
58AQI
6th April 2025
46AQI
46AQI
7th April 2025
54AQI
54AQI
8th April 2025
51AQI
51AQI
9th April 2025
58AQI
58AQI
10th April 2025
57AQI
57AQI
11th April 2025
69AQI
69AQI
12th April 2025
56AQI
56AQI
13th April 2025
108AQI
108AQI
14th April 2025
106AQI
106AQI
15th April 2025
89AQI
89AQI
16th April 2025
76AQI
76AQI
17th April 2025
74AQI
74AQI
18th April 2025
62AQI
62AQI
19th April 2025
49AQI
49AQI
20th April 2025
55AQI
55AQI
21st April 2025
55AQI
55AQI
22nd April 2025
54AQI
54AQI
23rd April 2025
46AQI
46AQI
24th April 2025
55AQI
55AQI
25th April 2025
53AQI
53AQI
26th April 2025
52AQI
52AQI
27th April 2025
50AQI
50AQI
28th April 2025
51AQI
51AQI
29th April 2025
36AQI
36AQI
30th April 2025
49AQI
49AQI
1st May 2025
41AQI
41AQI
2nd May 2025
57AQI
57AQI
3rd May 2025
57AQI
57AQI
4th May 2025
57AQI
57AQI
5th May 2025
44AQI
44AQI
6th May 2025
55AQI
55AQI
7th May 2025
57AQI
57AQI
8th May 2025
49AQI
49AQI
9th May 2025
52AQI
52AQI
10th May 2025
40AQI
40AQI
11th May 2025
46AQI
46AQI
12th May 2025
57AQI
57AQI
13th May 2025
55AQI
55AQI
14th May 2025
44AQI
44AQI
15th May 2025
35AQI
35AQI
16th May 2025
32AQI
32AQI
17th May 2025
32AQI
32AQI
18th May 2025
32AQI
32AQI
19th May 2025
30AQI
30AQI
20th May 2025
30AQI
30AQI
21st May 2025
29AQI
29AQI
22nd May 2025
28AQI
28AQI
23rd May 2025
27AQI
27AQI
24th May 2025
28AQI
28AQI
25th May 2025
35AQI
35AQI
26th May 2025
47AQI
47AQI
27th May 2025
44AQI
44AQI
28th May 2025
36AQI
36AQI
29th May 2025
33AQI
33AQI
30th May 2025
37AQI
37AQI
31st May 2025
30AQI
30AQI
1st June 2025
32AQI
32AQI
2nd June 2025
32AQI
32AQI
3rd June 2025
31AQI
31AQI
4th June 2025
32AQI
32AQI
5th June 2025
30AQI
30AQI
6th June 2025
33AQI
33AQI
7th June 2025
27AQI
27AQI
8th June 2025
28AQI
28AQI
9th June 2025
39AQI
39AQI
10th June 2025
41AQI
41AQI
11th June 2025
45AQI
45AQI
12th June 2025
32AQI
32AQI
13th June 2025
34AQI
34AQI
14th June 2025
34AQI
34AQI
15th June 2025
31AQI
31AQI
16th June 2025
29AQI
29AQI
17th June 2025
33AQI
33AQI
18th June 2025
34AQI
34AQI
19th June 2025
35AQI
35AQI
20th June 2025
35AQI
35AQI
21st June 2025
36AQI
36AQI
22nd June 2025
44AQI
44AQI
23rd June 2025
38AQI
38AQI
24th June 2025
39AQI
39AQI
25th June 2025
38AQI
38AQI
26th June 2025
32AQI
32AQI
27th June 2025
31AQI
31AQI
28th June 2025
28AQI
28AQI
29th June 2025
27AQI
27AQI
30th June 2025
28AQI
28AQI
1st July 2025
31AQI
31AQI
2nd July 2025
27AQI
27AQI
3rd July 2025
24AQI
24AQI
4th July 2025
23AQI
23AQI
5th July 2025
24AQI
24AQI
6th July 2025
23AQI
23AQI
7th July 2025
23AQI
23AQI
8th July 2025
26AQI
26AQI
9th July 2025
32AQI
32AQI
10th July 2025
32AQI
32AQI
11th July 2025
41AQI
41AQI
12th July 2025
35AQI
35AQI
13th July 2025
35AQI
35AQI
14th July 2025
42AQI
42AQI
15th July 2025
40AQI
40AQI
16th July 2025
35AQI
35AQI
17th July 2025
34AQI
34AQI
18th July 2025
36AQI
36AQI
19th July 2025
31AQI
31AQI
20th July 2025
29AQI
29AQI
21st July 2025
28AQI
28AQI
22nd July 2025
26AQI
26AQI
23rd July 2025
23AQI
23AQI
24th July 2025
25AQI
25AQI
25th July 2025
28AQI
28AQI
26th July 2025
27AQI
27AQI
27th July 2025
26AQI
26AQI
28th July 2025
24AQI
24AQI
29th July 2025
24AQI
24AQI
30th July 2025
31AQI
31AQI
31st July 2025
39AQI
39AQI
1st August 2025
53AQI
53AQI
2nd August 2025
55AQI
55AQI
3rd August 2025
56AQI
56AQI
4th August 2025
54AQI
54AQI
5th August 2025
50AQI
50AQI
6th August 2025
52AQI
52AQI
7th August 2025
49AQI
49AQI
8th August 2025
44AQI
44AQI
9th August 2025
41AQI
41AQI
10th August 2025
41AQI
41AQI
11th August 2025
41AQI
41AQI
12th August 2025
41AQI
41AQI
13th August 2025
37AQI
37AQI
14th August 2025
36AQI
36AQI
15th August 2025
32AQI
32AQI
16th August 2025
30AQI
30AQI
17th August 2025
29AQI
29AQI
18th August 2025
27AQI
27AQI
19th August 2025
27AQI
27AQI
20th August 2025
32AQI
32AQI
21st August 2025
32AQI
32AQI
22nd August 2025
31AQI
31AQI
23rd August 2025
32AQI
32AQI
24th August 2025
31AQI
31AQI
25th August 2025
29AQI
29AQI
26th August 2025
29AQI
29AQI
27th August 2025
29AQI
29AQI
28th August 2025
33AQI
33AQI
29th August 2025
36AQI
36AQI
30th August 2025
31AQI
31AQI
31st August 2025
31AQI
31AQI
1st September 2025
30AQI
30AQI
2nd September 2025
33AQI
33AQI
3rd September 2025
31AQI
31AQI
4th September 2025
28AQI
28AQI
5th September 2025
28AQI
28AQI
6th September 2025
30AQI
30AQI
7th September 2025
43AQI
43AQI
8th September 2025
35AQI
35AQI
9th September 2025
33AQI
33AQI
10th September 2025
33AQI
33AQI
11th September 2025
32AQI
32AQI
12th September 2025
29AQI
29AQI
13th September 2025
26AQI
26AQI
14th September 2025
26AQI
26AQI
15th September 2025
25AQI
25AQI
16th September 2025
24AQI
24AQI
17th September 2025
24AQI
24AQI
18th September 2025
25AQI
25AQI
19th September 2025
24AQI
24AQI
20th September 2025
29AQI
29AQI
21st September 2025
29AQI
29AQI
22nd September 2025
31AQI
31AQI
23rd September 2025
33AQI
33AQI
24th September 2025
32AQI
32AQI
25th September 2025
35AQI
35AQI
26th September 2025
38AQI
38AQI
27th September 2025
29AQI
29AQI
28th September 2025
20AQI
20AQI
29th September 2025
29AQI
29AQI
30th September 2025
36AQI
36AQI
1st October 2025
38AQI
38AQI
2nd October 2025
44AQI
44AQI
3rd October 2025
46AQI
46AQI
4th October 2025
47AQI
47AQI
5th October 2025
52AQI
52AQI
6th October 2025
44AQI
44AQI
7th October 2025
55AQI
55AQI
8th October 2025
58AQI
58AQI
9th October 2025
61AQI
61AQI
10th October 2025
64AQI
64AQI
11th October 2025
61AQI
61AQI
12th October 2025
63AQI
63AQI
13th October 2025
50AQI
50AQI
14th October 2025
56AQI
56AQI
15th October 2025
62AQI
62AQI
16th October 2025
65AQI
65AQI
17th October 2025
60AQI
60AQI
18th October 2025
58AQI
58AQI
19th October 2025
66AQI
66AQI
20th October 2025
66AQI
66AQI
21st October 2025
50AQI
50AQI
22nd October 2025
36AQI
36AQI
23rd October 2025
44AQI
44AQI
24th October 2025
63AQI
63AQI
25th October 2025
66AQI
66AQI
26th October 2025
74AQI
74AQI
27th October 2025
63AQI
63AQI
28th October 2025
53AQI
53AQI
29th October 2025
65AQI
65AQI
30th October 2025
27AQI
27AQI
31st October 2025
43AQI
43AQI
1st November 2025
69AQI
69AQI
2nd November 2025
69AQI
69AQI
3rd November 2025
62AQI
62AQI
4th November 2025
47AQI
47AQI
5th November 2025
29AQI
29AQI
6th November 2025
56AQI
56AQI
7th November 2025
51AQI
51AQI
8th November 2025
48AQI
48AQI
9th November 2025
50AQI
50AQI
10th November 2025
67AQI
67AQI
11th November 2025
64AQI
64AQI
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
83AQI
57AQI
55AQI
59AQI
41AQI
34AQI
30AQI
38AQI
30AQI
55AQI
56AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202548AQI
29
2
8
20
12
19
7
21
2
23
8
30
31
26
5
30
11
20
4
7
182
129
4
Highest AQI recorded in
January83AQI
Lowest AQI recorded in
July30AQI
202447AQI
2
19
5
11
1
16
5
1
3
15
19
4
29
1
31
31
27
2
19
10
2
21
9
26
5
203
102
9
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
July31AQI
202354AQI
1
8
2
1
1
8
4
2
1
1
1
5
2
9
4
1
3
18
12
42
36
6
Highest AQI recorded in
March82AQI
Lowest AQI recorded in
July17AQI
202244AQI
8
20
1
15
5
1
8
22
1
11
5
1
28
3
30
18
1
5
4
11
14
20
3
4
8
1
159
84
4
1
Highest AQI recorded in
January65AQI
Lowest AQI recorded in
August13AQI
202148AQI
22
8
1
3
24
1
14
16
1
23
7
29
2
27
3
30
1
31
30
25
4
10
18
2
1
28
2
223
125
14
1
Highest AQI recorded in
January91AQI
Lowest AQI recorded in
September23AQI
202042AQI
2
6
15
1
28
31
30
1
27
3
14
17
12
16
2
3
21
7
162
65
9
Highest AQI recorded in
December80AQI
Lowest AQI recorded in
August21AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
54AQILeast Polluted Year Recorded
2020(Avg.)
42AQICity Archives Sub Station's annual 2025 AQI (48) shows an average percentage change of 4.02% (worsened AQI) compared to previous years: 2020 (42), 2021 (48), 2022 (44), 2023 (54), 2024 (47).
