Sanmen Ring Supervision Station, Linhai, 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+
August Air Quality Analysis
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
12th Aug 2024
77AQILowest AQI recorded on
4th Aug 2021
20AQISame Day Analysis (3rd August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 59 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
AQI
Day
Night
.
5 AM3rd Aug 2025
6 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
11AM3rd Aug
71AQI
Avg. Lowest Time
5AM3rd Aug
54AQI
Night time
Avg. Highest Time
8PM3rd Aug
61AQI
Avg. Lowest Time
1AM4th Aug
53AQI
In the last 24 hours,
Sanmen Ring Supervision Station's AQI reached its highest point of 71 at 11 AM during the Day, while the lowest point, 53, was recorded at 1 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
JulAug
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025535 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025537 AMAQI
5th Jul 2025508 AMAQI
5th Jul 2025479 AMAQI
5th Jul 20254410 AMAQI
5th Jul 20255011 AMAQI
5th Jul 20255312 PMAQI
5th Jul 2025481 PMAQI
5th Jul 2025472 PMAQI
5th Jul 2025433 PMAQI
5th Jul 2025434 PMAQI
5th Jul 2025405 PMAQI
5th Jul 2025416 PMAQI
5th Jul 2025447 PMAQI
5th Jul 2025478 PMAQI
5th Jul 2025509 PMAQI
5th Jul 20254310 PMAQI
5th Jul 20254011 PMAQI
6th Jul 20254112 AMAQI
6th Jul 2025461 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
6th Jul 2025524 AMAQI
28°C23/35°C
6th Jul 2025525 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025458 AMAQI
6th Jul 2025329 AMAQI
6th Jul 20253110 AMAQI
6th Jul 20253211 AMAQI
6th Jul 20253612 PMAQI
6th Jul 2025401 PMAQI
6th Jul 2025372 PMAQI
6th Jul 2025343 PMAQI
6th Jul 2025334 PMAQI
6th Jul 2025345 PMAQI
6th Jul 2025386 PMAQI
6th Jul 2025467 PMAQI
6th Jul 2025478 PMAQI
6th Jul 2025469 PMAQI
6th Jul 20254110 PMAQI
6th Jul 20253811 PMAQI
7th Jul 20254012 AMAQI
7th Jul 2025471 AMAQI
7th Jul 2025532 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025514 AMAQI
28°C23/34°C
7th Jul 2025505 AMAQI
7th Jul 2025516 AMAQI
7th Jul 2025517 AMAQI
7th Jul 2025308 AMAQI
7th Jul 2025249 AMAQI
7th Jul 20252410 AMAQI
7th Jul 20252711 AMAQI
7th Jul 20253012 PMAQI
7th Jul 2025351 PMAQI
7th Jul 2025322 PMAQI
7th Jul 2025333 PMAQI
7th Jul 2025294 PMAQI
7th Jul 2025265 PMAQI
7th Jul 2025266 PMAQI
7th Jul 2025367 PMAQI
7th Jul 2025388 PMAQI
7th Jul 2025379 PMAQI
7th Jul 20253810 PMAQI
7th Jul 20253811 PMAQI
8th Jul 20253812 AMAQI
8th Jul 2025511 AMAQI
8th Jul 2025512 AMAQI
8th Jul 2025473 AMAQI
8th Jul 2025444 AMAQI
26°C23/32°C
8th Jul 2025445 AMAQI
8th Jul 2025456 AMAQI
8th Jul 2025447 AMAQI
8th Jul 2025328 AMAQI
8th Jul 2025309 AMAQI
8th Jul 20252810 AMAQI
8th Jul 20253411 AMAQI
8th Jul 20253212 PMAQI
8th Jul 2025381 PMAQI
8th Jul 2025352 PMAQI
8th Jul 2025333 PMAQI
8th Jul 2025354 PMAQI
8th Jul 2025365 PMAQI
8th Jul 2025446 PMAQI
8th Jul 2025537 PMAQI
8th Jul 2025478 PMAQI
8th Jul 2025469 PMAQI
8th Jul 20254310 PMAQI
8th Jul 20254111 PMAQI
9th Jul 20254112 AMAQI
9th Jul 2025441 AMAQI
9th Jul 2025452 AMAQI
9th Jul 2025463 AMAQI
9th Jul 2025494 AMAQI
25°C24/27°C
9th Jul 2025505 AMAQI
9th Jul 2025486 AMAQI
9th Jul 2025497 AMAQI
9th Jul 2025408 AMAQI
9th Jul 2025429 AMAQI
9th Jul 20254310 AMAQI
9th Jul 20254611 AMAQI
9th Jul 20255012 PMAQI
9th Jul 2025481 PMAQI
9th Jul 2025482 PMAQI
9th Jul 2025473 PMAQI
9th Jul 2025404 PMAQI
9th Jul 2025405 PMAQI
9th Jul 2025386 PMAQI
9th Jul 2025407 PMAQI
9th Jul 2025468 PMAQI
9th Jul 2025459 PMAQI
9th Jul 20254410 PMAQI
9th Jul 20254011 PMAQI
10th Jul 20254012 AMAQI
10th Jul 2025451 AMAQI
10th Jul 2025492 AMAQI
10th Jul 2025483 AMAQI
10th Jul 2025494 AMAQI
26°C23/31°C
10th Jul 2025485 AMAQI
10th Jul 2025486 AMAQI
10th Jul 2025487 AMAQI
10th Jul 2025438 AMAQI
10th Jul 2025489 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20255811 AMAQI
10th Jul 20255912 PMAQI
10th Jul 2025661 PMAQI
10th Jul 2025642 PMAQI
10th Jul 2025583 PMAQI
10th Jul 2025564 PMAQI
10th Jul 2025575 PMAQI
10th Jul 2025586 PMAQI
10th Jul 2025577 PMAQI
10th Jul 2025548 PMAQI
10th Jul 2025529 PMAQI
10th Jul 20255010 PMAQI
10th Jul 20254911 PMAQI
11th Jul 20254612 AMAQI
11th Jul 2025481 AMAQI
11th Jul 2025482 AMAQI
11th Jul 2025493 AMAQI
11th Jul 2025524 AMAQI
26°C23/30°C
11th Jul 2025545 AMAQI
11th Jul 2025536 AMAQI
11th Jul 2025537 AMAQI
11th Jul 2025338 AMAQI
11th Jul 2025379 AMAQI
11th Jul 20253510 AMAQI
11th Jul 20253411 AMAQI
11th Jul 20253812 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025372 PMAQI
11th Jul 2025333 PMAQI
11th Jul 2025344 PMAQI
11th Jul 2025375 PMAQI
11th Jul 2025416 PMAQI
11th Jul 2025447 PMAQI
11th Jul 2025458 PMAQI
11th Jul 2025469 PMAQI
11th Jul 20254510 PMAQI
11th Jul 20254611 PMAQI
12th Jul 20254612 AMAQI
12th Jul 2025501 AMAQI
12th Jul 2025512 AMAQI
12th Jul 2025503 AMAQI
12th Jul 2025504 AMAQI
26°C23/29°C
12th Jul 2025505 AMAQI
12th Jul 2025496 AMAQI
12th Jul 2025487 AMAQI
12th Jul 2025488 AMAQI
12th Jul 2025469 AMAQI
12th Jul 20254310 AMAQI
12th Jul 20254611 AMAQI
12th Jul 20254912 PMAQI
12th Jul 2025501 PMAQI
12th Jul 2025392 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025527 PMAQI
12th Jul 2025528 PMAQI
12th Jul 2025499 PMAQI
12th Jul 20254710 PMAQI
12th Jul 20254911 PMAQI
13th Jul 20254612 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025522 AMAQI
13th Jul 2025513 AMAQI
13th Jul 2025504 AMAQI
26°C23/29°C
13th Jul 2025505 AMAQI
13th Jul 2025496 AMAQI
13th Jul 2025507 AMAQI
13th Jul 2025468 AMAQI
13th Jul 2025429 AMAQI
13th Jul 20254810 AMAQI
13th Jul 20254911 AMAQI
13th Jul 20255212 PMAQI
13th Jul 2025561 PMAQI
13th Jul 2025562 PMAQI
13th Jul 2025573 PMAQI
13th Jul 2025564 PMAQI
13th Jul 2025565 PMAQI
13th Jul 2025626 PMAQI
13th Jul 2025587 PMAQI
13th Jul 2025568 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255510 PMAQI
13th Jul 20255511 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025521 AMAQI
14th Jul 2025522 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025514 AMAQI
26°C22/31°C
14th Jul 2025525 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025638 AMAQI
14th Jul 2025659 AMAQI
14th Jul 20256710 AMAQI
14th Jul 20256611 AMAQI
14th Jul 20256512 PMAQI
14th Jul 2025651 PMAQI
14th Jul 2025652 PMAQI
14th Jul 2025673 PMAQI
14th Jul 2025684 PMAQI
14th Jul 2025675 PMAQI
14th Jul 2025676 PMAQI
14th Jul 2025667 PMAQI
14th Jul 2025608 PMAQI
14th Jul 2025569 PMAQI
14th Jul 20255510 PMAQI
14th Jul 20255511 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025532 AMAQI
15th Jul 2025543 AMAQI
15th Jul 2025554 AMAQI
26°C21/33°C
15th Jul 2025555 AMAQI
15th Jul 2025556 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025638 AMAQI
15th Jul 2025699 AMAQI
15th Jul 20256610 AMAQI
15th Jul 20256811 AMAQI
15th Jul 20257312 PMAQI
15th Jul 2025811 PMAQI
15th Jul 2025782 PMAQI
15th Jul 2025773 PMAQI
15th Jul 2025764 PMAQI
15th Jul 2025705 PMAQI
15th Jul 2025696 PMAQI
15th Jul 2025687 PMAQI
15th Jul 2025618 PMAQI
15th Jul 2025629 PMAQI
15th Jul 20256210 PMAQI
15th Jul 20256111 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025574 AMAQI
27°C21/34°C
16th Jul 2025585 AMAQI
16th Jul 2025586 AMAQI
16th Jul 2025587 AMAQI
16th Jul 2025588 AMAQI
16th Jul 2025569 AMAQI
16th Jul 20255610 AMAQI
16th Jul 20255911 AMAQI
16th Jul 20256612 PMAQI
16th Jul 2025721 PMAQI
16th Jul 2025732 PMAQI
16th Jul 2025733 PMAQI
16th Jul 2025714 PMAQI
16th Jul 2025695 PMAQI
16th Jul 2025666 PMAQI
16th Jul 2025657 PMAQI
16th Jul 2025648 PMAQI
16th Jul 2025649 PMAQI
16th Jul 20256210 PMAQI
16th Jul 20256311 PMAQI
17th Jul 20256312 AMAQI
17th Jul 2025561 AMAQI
17th Jul 2025572 AMAQI
17th Jul 2025583 AMAQI
17th Jul 2025594 AMAQI
28°C23/37°C
17th Jul 2025595 AMAQI
17th Jul 2025596 AMAQI
17th Jul 2025597 AMAQI
17th Jul 2025608 AMAQI
17th Jul 2025609 AMAQI
17th Jul 20255510 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20256212 PMAQI
17th Jul 2025681 PMAQI
17th Jul 2025682 PMAQI
17th Jul 2025683 PMAQI
17th Jul 2025664 PMAQI
17th Jul 2025665 PMAQI
17th Jul 2025666 PMAQI
17th Jul 2025677 PMAQI
17th Jul 2025628 PMAQI
17th Jul 2025629 PMAQI
17th Jul 20256210 PMAQI
17th Jul 20256311 PMAQI
18th Jul 20256212 AMAQI
18th Jul 2025591 AMAQI
18th Jul 2025592 AMAQI
18th Jul 2025593 AMAQI
18th Jul 2025584 AMAQI
28°C24/32°C
18th Jul 2025595 AMAQI
18th Jul 2025596 AMAQI
18th Jul 2025597 AMAQI
18th Jul 2025578 AMAQI
18th Jul 2025569 AMAQI
18th Jul 20255410 AMAQI
18th Jul 20255611 AMAQI
18th Jul 20255812 PMAQI
18th Jul 2025591 PMAQI
18th Jul 2025572 PMAQI
18th Jul 2025553 PMAQI
18th Jul 2025544 PMAQI
18th Jul 2025525 PMAQI
18th Jul 2025506 PMAQI
18th Jul 2025507 PMAQI
18th Jul 2025528 PMAQI
18th Jul 2025539 PMAQI
18th Jul 20255210 PMAQI
18th Jul 20255211 PMAQI
19th Jul 20255312 AMAQI
19th Jul 2025591 AMAQI
19th Jul 2025592 AMAQI
19th Jul 2025593 AMAQI
19th Jul 2025584 AMAQI
27°C24/33°C
19th Jul 2025585 AMAQI
19th Jul 2025596 AMAQI
19th Jul 2025587 AMAQI
19th Jul 2025308 AMAQI
19th Jul 2025209 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20253512 PMAQI
19th Jul 2025431 PMAQI
19th Jul 2025332 PMAQI
19th Jul 2025363 PMAQI
19th Jul 2025354 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025376 PMAQI
19th Jul 2025467 PMAQI
19th Jul 2025538 PMAQI
19th Jul 2025539 PMAQI
19th Jul 20255210 PMAQI
19th Jul 20255311 PMAQI
20th Jul 20255412 AMAQI
20th Jul 2025581 AMAQI
20th Jul 2025582 AMAQI
20th Jul 2025563 AMAQI
20th Jul 2025544 AMAQI
26°C23/30°C
20th Jul 2025555 AMAQI
20th Jul 2025556 AMAQI
20th Jul 2025557 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025289 AMAQI
20th Jul 20252710 AMAQI
20th Jul 20253211 AMAQI
20th Jul 20253212 PMAQI
20th Jul 2025341 PMAQI
20th Jul 2025352 PMAQI
20th Jul 2025343 PMAQI
20th Jul 2025364 PMAQI
20th Jul 2025365 PMAQI
20th Jul 2025376 PMAQI
20th Jul 2025457 PMAQI
20th Jul 2025508 PMAQI
20th Jul 2025509 PMAQI
20th Jul 20255210 PMAQI
20th Jul 20255011 PMAQI
21st Jul 20255112 AMAQI
21st Jul 2025561 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025543 AMAQI
21st Jul 2025534 AMAQI
27°C24/30°C
21st Jul 2025535 AMAQI
21st Jul 2025536 AMAQI
21st Jul 2025537 AMAQI
21st Jul 2025338 AMAQI
21st Jul 2025269 AMAQI
21st Jul 20251910 AMAQI
21st Jul 20252411 AMAQI
21st Jul 20252812 PMAQI
21st Jul 2025311 PMAQI
21st Jul 2025262 PMAQI
21st Jul 2025273 PMAQI
21st Jul 2025244 PMAQI
21st Jul 2025295 PMAQI
21st Jul 2025236 PMAQI
21st Jul 2025387 PMAQI
21st Jul 2025478 PMAQI
21st Jul 2025489 PMAQI
21st Jul 20254610 PMAQI
21st Jul 20254611 PMAQI
22nd Jul 20254612 AMAQI
22nd Jul 2025531 AMAQI
22nd Jul 2025542 AMAQI
22nd Jul 2025533 AMAQI
22nd Jul 2025524 AMAQI
26°C24/29°C
22nd Jul 2025525 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025527 AMAQI
22nd Jul 2025308 AMAQI
22nd Jul 2025279 AMAQI
22nd Jul 20252410 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20253212 PMAQI
22nd Jul 2025361 PMAQI
22nd Jul 2025352 PMAQI
22nd Jul 2025323 PMAQI
22nd Jul 2025344 PMAQI
22nd Jul 2025365 PMAQI
22nd Jul 2025406 PMAQI
22nd Jul 2025437 PMAQI
22nd Jul 2025478 PMAQI
22nd Jul 2025459 PMAQI
22nd Jul 20254410 PMAQI
22nd Jul 20254311 PMAQI
23rd Jul 20254612 AMAQI
23rd Jul 2025521 AMAQI
23rd Jul 2025522 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025484 AMAQI
26°C23/30°C
23rd Jul 2025485 AMAQI
23rd Jul 2025486 AMAQI
23rd Jul 2025487 AMAQI
23rd Jul 2025308 AMAQI
23rd Jul 2025269 AMAQI
23rd Jul 20252610 AMAQI
23rd Jul 20252411 AMAQI
23rd Jul 20252712 PMAQI
23rd Jul 2025301 PMAQI
23rd Jul 2025282 PMAQI
23rd Jul 2025283 PMAQI
23rd Jul 2025314 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025356 PMAQI
23rd Jul 2025417 PMAQI
23rd Jul 2025428 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20253910 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20254112 AMAQI
24th Jul 2025401 AMAQI
24th Jul 2025472 AMAQI
24th Jul 2025463 AMAQI
24th Jul 2025454 AMAQI
27°C23/32°C
24th Jul 2025455 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025447 AMAQI
24th Jul 2025338 AMAQI
24th Jul 2025279 AMAQI
24th Jul 20252810 AMAQI
24th Jul 20253011 AMAQI
24th Jul 20253612 PMAQI
24th Jul 2025351 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025323 PMAQI
24th Jul 2025334 PMAQI
24th Jul 2025345 PMAQI
24th Jul 2025396 PMAQI
24th Jul 2025447 PMAQI
24th Jul 2025468 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20254810 PMAQI
24th Jul 20254411 PMAQI
25th Jul 20254412 AMAQI
25th Jul 2025461 AMAQI
25th Jul 2025462 AMAQI
25th Jul 2025463 AMAQI
25th Jul 2025464 AMAQI
27°C24/29°C
25th Jul 2025465 AMAQI
25th Jul 2025446 AMAQI
25th Jul 2025447 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025329 AMAQI
25th Jul 20253510 AMAQI
25th Jul 20253911 AMAQI
25th Jul 20253812 PMAQI
25th Jul 2025381 PMAQI
25th Jul 2025362 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025344 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025386 PMAQI
25th Jul 2025387 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025389 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253412 AMAQI
26th Jul 2025421 AMAQI
26th Jul 2025462 AMAQI
26th Jul 2025463 AMAQI
26th Jul 2025464 AMAQI
26°C24/27°C
26th Jul 2025455 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025308 AMAQI
26th Jul 2025289 AMAQI
26th Jul 20252610 AMAQI
26th Jul 20252911 AMAQI
26th Jul 20253312 PMAQI
26th Jul 2025351 PMAQI
26th Jul 2025422 PMAQI
26th Jul 2025373 PMAQI
26th Jul 2025384 PMAQI
26th Jul 2025415 PMAQI
26th Jul 2025386 PMAQI
26th Jul 2025467 PMAQI
26th Jul 2025478 PMAQI
26th Jul 2025479 PMAQI
26th Jul 20254610 PMAQI
26th Jul 20254411 PMAQI
27th Jul 20254212 AMAQI
27th Jul 2025401 AMAQI
27th Jul 2025442 AMAQI
27th Jul 2025423 AMAQI
27th Jul 2025434 AMAQI
27°C25/30°C
27th Jul 2025435 AMAQI
27th Jul 2025436 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025408 AMAQI
27th Jul 2025379 AMAQI
27th Jul 20254310 AMAQI
27th Jul 20253911 AMAQI
27th Jul 20253612 PMAQI
27th Jul 2025381 PMAQI
27th Jul 2025422 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025394 PMAQI
27th Jul 2025445 PMAQI
27th Jul 2025436 PMAQI
27th Jul 2025497 PMAQI
27th Jul 2025488 PMAQI
27th Jul 2025409 PMAQI
27th Jul 20253610 PMAQI
27th Jul 20253711 PMAQI
28th Jul 20253712 AMAQI
28th Jul 2025451 AMAQI
28th Jul 2025472 AMAQI
28th Jul 2025453 AMAQI
28th Jul 2025414 AMAQI
27°C24/30°C
28th Jul 2025415 AMAQI
28th Jul 2025416 AMAQI
28th Jul 2025417 AMAQI
28th Jul 2025318 AMAQI
28th Jul 2025299 AMAQI
28th Jul 20253010 AMAQI
28th Jul 20252911 AMAQI
28th Jul 20253012 PMAQI
28th Jul 2025271 PMAQI
28th Jul 2025272 PMAQI
28th Jul 2025313 PMAQI
28th Jul 2025324 PMAQI
28th Jul 2025365 PMAQI
28th Jul 2025406 PMAQI
28th Jul 2025447 PMAQI
28th Jul 2025388 PMAQI
28th Jul 2025439 PMAQI
28th Jul 20254110 PMAQI
28th Jul 20254211 PMAQI
29th Jul 20254112 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025432 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025404 AMAQI
26°C24/29°C
29th Jul 2025395 AMAQI
29th Jul 2025396 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025338 AMAQI
29th Jul 2025379 AMAQI
29th Jul 20253910 AMAQI
29th Jul 20254011 AMAQI
29th Jul 20253712 PMAQI
29th Jul 2025381 PMAQI
29th Jul 2025342 PMAQI
29th Jul 2025343 PMAQI
29th Jul 2025344 PMAQI
29th Jul 2025365 PMAQI
29th Jul 2025346 PMAQI
29th Jul 2025337 PMAQI
29th Jul 2025378 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20253810 PMAQI
29th Jul 20253711 PMAQI
30th Jul 20253512 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025432 AMAQI
30th Jul 2025433 AMAQI
30th Jul 2025434 AMAQI
25°C23/28°C
30th Jul 2025445 AMAQI
30th Jul 2025446 AMAQI
30th Jul 2025437 AMAQI
30th Jul 2025268 AMAQI
30th Jul 2025259 AMAQI
30th Jul 20253110 AMAQI
30th Jul 20253211 AMAQI
30th Jul 20253212 PMAQI
30th Jul 2025321 PMAQI
30th Jul 2025382 PMAQI
30th Jul 2025383 PMAQI
30th Jul 2025364 PMAQI
30th Jul 2025385 PMAQI
30th Jul 2025386 PMAQI
30th Jul 2025447 PMAQI
30th Jul 2025408 PMAQI
30th Jul 2025379 PMAQI
30th Jul 20253610 PMAQI
30th Jul 20253211 PMAQI
31st Jul 20253612 AMAQI
31st Jul 2025391 AMAQI
31st Jul 2025412 AMAQI
31st Jul 2025423 AMAQI
31st Jul 2025424 AMAQI
25°C23/26°C
31st Jul 2025425 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025429 AMAQI
31st Jul 20254810 AMAQI
31st Jul 20254711 AMAQI
31st Jul 20255212 PMAQI
31st Jul 2025511 PMAQI
31st Jul 2025512 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025544 PMAQI
31st Jul 2025595 PMAQI
31st Jul 2025666 PMAQI
31st Jul 2025667 PMAQI
31st Jul 2025568 PMAQI
31st Jul 2025559 PMAQI
31st Jul 20255410 PMAQI
31st Jul 20255411 PMAQI
1st Aug 20254712 AMAQI
1st Aug 2025401 AMAQI
1st Aug 2025402 AMAQI
1st Aug 2025433 AMAQI
1st Aug 2025454 AMAQI
27°C21/33°C
1st Aug 2025445 AMAQI
1st Aug 2025456 AMAQI
1st Aug 2025507 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025629 AMAQI
1st Aug 20256610 AMAQI
1st Aug 20256111 AMAQI
1st Aug 20257412 PMAQI
1st Aug 2025641 PMAQI
1st Aug 2025662 PMAQI
1st Aug 2025583 PMAQI
1st Aug 2025564 PMAQI
1st Aug 2025555 PMAQI
1st Aug 2025566 PMAQI
1st Aug 2025547 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025579 PMAQI
1st Aug 20255810 PMAQI
1st Aug 20256011 PMAQI
2nd Aug 20255312 AMAQI
2nd Aug 2025461 AMAQI
2nd Aug 2025452 AMAQI
2nd Aug 2025513 AMAQI
2nd Aug 2025524 AMAQI
27°C23/34°C
2nd Aug 2025525 AMAQI
2nd Aug 2025526 AMAQI
2nd Aug 2025527 AMAQI
2nd Aug 2025608 AMAQI
2nd Aug 2025659 AMAQI
2nd Aug 20256410 AMAQI
2nd Aug 20256211 AMAQI
2nd Aug 20257412 PMAQI
2nd Aug 2025681 PMAQI
2nd Aug 2025762 PMAQI
2nd Aug 2025683 PMAQI
2nd Aug 2025664 PMAQI
2nd Aug 2025645 PMAQI
2nd Aug 2025646 PMAQI
2nd Aug 2025597 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20255810 PMAQI
2nd Aug 20255911 PMAQI
3rd Aug 20255512 AMAQI
3rd Aug 2025521 AMAQI
3rd Aug 2025522 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025554 AMAQI
28°C24/35°C
3rd Aug 2025545 AMAQI
3rd Aug 2025556 AMAQI
3rd Aug 2025567 AMAQI
3rd Aug 2025688 AMAQI
3rd Aug 2025669 AMAQI
3rd Aug 20256610 AMAQI
3rd Aug 20257111 AMAQI
3rd Aug 20256412 PMAQI
3rd Aug 2025701 PMAQI
3rd Aug 2025642 PMAQI
3rd Aug 2025683 PMAQI
3rd Aug 2025684 PMAQI
3rd Aug 2025655 PMAQI
3rd Aug 2025646 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025618 PMAQI
3rd Aug 2025579 PMAQI
3rd Aug 20255710 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255512 AMAQI
4th Aug 2025531 AMAQI
4th Aug 2025542 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI
29°C24/35°C
4th Aug 2025565 AMAQI
5 AM4th Aug 2025566 AMAQI
4th Aug 2025567 AMAQI
4th Aug 2025608 AMAQI
4th Aug 2025649 AMAQI
4th Aug 20257710 AMAQI
4th Aug 20256911 AMAQI
11 AM4th Aug 20256712 PMAQI
4th Aug 2025741 PMAQI
4th Aug 2025642 PMAQI
4th Aug 2025723 PMAQI
4th Aug 2025684 PMAQI
4th Aug 2025625 PMAQI
4th Aug 2025626 PMAQI
6 PM4th Aug 2025567 PMAQI
4th Aug 2025548 PMAQI
4th Aug 2025529 PMAQI
4th Aug 20255610 PMAQI
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
50AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 AM - 11 AM
43AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 50), while the lowest AQI was between 8 AM to 11 AM (Avg. 43).
Night time
Avg. Highest Time
12 AM - 11 PM
49AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
49AQI
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. 49), while the lowest AQI was between 12 AM to 11 PM (Avg. 49).
2025 Days Vs Air Quality
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
2025
15%
33
67%
145
17%
36
0.4%
1
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
33 DaysModerate
145 DaysPoor
36 DaysUnhealthy
1 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 15%
Health Risk Level:
Extreme
In 2025, 15% of 216 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
Sanmen Ring Supervision Station, Linhai, 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.
1st January 2025
102AQI
102AQI
2nd January 2025
96AQI
96AQI
3rd January 2025
102AQI
102AQI
4th January 2025
81AQI
81AQI
5th January 2025
115AQI
115AQI
6th January 2025
113AQI
113AQI
7th January 2025
134AQI
134AQI
8th January 2025
140AQI
140AQI
9th January 2025
98AQI
98AQI
10th January 2025
94AQI
94AQI
11th January 2025
104AQI
104AQI
12th January 2025
113AQI
113AQI
13th January 2025
131AQI
131AQI
14th January 2025
116AQI
116AQI
15th January 2025
103AQI
103AQI
16th January 2025
92AQI
92AQI
17th January 2025
112AQI
112AQI
18th January 2025
109AQI
109AQI
19th January 2025
115AQI
115AQI
20th January 2025
140AQI
140AQI
21st January 2025
153AQI
153AQI
22nd January 2025
118AQI
118AQI
23rd January 2025
98AQI
98AQI
24th January 2025
82AQI
82AQI
25th January 2025
81AQI
81AQI
26th January 2025
72AQI
72AQI
27th January 2025
65AQI
65AQI
28th January 2025
78AQI
78AQI
29th January 2025
117AQI
117AQI
30th January 2025
92AQI
92AQI
31st January 2025
99AQI
99AQI
1st February 2025
52AQI
52AQI
2nd February 2025
81AQI
81AQI
3rd February 2025
119AQI
119AQI
4th February 2025
109AQI
109AQI
5th February 2025
98AQI
98AQI
6th February 2025
104AQI
104AQI
7th February 2025
82AQI
82AQI
8th February 2025
68AQI
68AQI
9th February 2025
80AQI
80AQI
10th February 2025
87AQI
87AQI
11th February 2025
78AQI
78AQI
12th February 2025
110AQI
110AQI
13th February 2025
104AQI
104AQI
14th February 2025
80AQI
80AQI
15th February 2025
96AQI
96AQI
16th February 2025
114AQI
114AQI
17th February 2025
98AQI
98AQI
18th February 2025
78AQI
78AQI
19th February 2025
94AQI
94AQI
20th February 2025
74AQI
74AQI
21st February 2025
68AQI
68AQI
22nd February 2025
76AQI
76AQI
23rd February 2025
102AQI
102AQI
24th February 2025
130AQI
130AQI
25th February 2025
129AQI
129AQI
26th February 2025
149AQI
149AQI
27th February 2025
141AQI
141AQI
28th February 2025
108AQI
108AQI
1st March 2025
92AQI
92AQI
2nd March 2025
88AQI
88AQI
3rd March 2025
77AQI
77AQI
4th March 2025
53AQI
53AQI
5th March 2025
66AQI
66AQI
6th March 2025
62AQI
62AQI
7th March 2025
77AQI
77AQI
8th March 2025
102AQI
102AQI
9th March 2025
79AQI
79AQI
10th March 2025
82AQI
82AQI
11th March 2025
97AQI
97AQI
12th March 2025
78AQI
78AQI
13th March 2025
68AQI
68AQI
14th March 2025
68AQI
68AQI
15th March 2025
37AQI
37AQI
16th March 2025
79AQI
79AQI
17th March 2025
70AQI
70AQI
18th March 2025
80AQI
80AQI
19th March 2025
82AQI
82AQI
20th March 2025
94AQI
94AQI
21st March 2025
78AQI
78AQI
22nd March 2025
83AQI
83AQI
23rd March 2025
80AQI
80AQI
24th March 2025
99AQI
99AQI
25th March 2025
111AQI
111AQI
26th March 2025
115AQI
115AQI
27th March 2025
110AQI
110AQI
28th March 2025
85AQI
85AQI
29th March 2025
85AQI
85AQI
30th March 2025
69AQI
69AQI
31st March 2025
63AQI
63AQI
1st April 2025
70AQI
70AQI
2nd April 2025
77AQI
77AQI
3rd April 2025
94AQI
94AQI
4th April 2025
77AQI
77AQI
5th April 2025
84AQI
84AQI
6th April 2025
88AQI
88AQI
7th April 2025
87AQI
87AQI
8th April 2025
90AQI
90AQI
9th April 2025
90AQI
90AQI
10th April 2025
76AQI
76AQI
11th April 2025
81AQI
81AQI
12th April 2025
107AQI
107AQI
13th April 2025
90AQI
90AQI
14th April 2025
102AQI
102AQI
15th April 2025
78AQI
78AQI
16th April 2025
85AQI
85AQI
17th April 2025
92AQI
92AQI
18th April 2025
91AQI
91AQI
19th April 2025
72AQI
72AQI
20th April 2025
104AQI
104AQI
21st April 2025
75AQI
75AQI
22nd April 2025
77AQI
77AQI
23rd April 2025
55AQI
55AQI
24th April 2025
78AQI
78AQI
25th April 2025
63AQI
63AQI
26th April 2025
58AQI
58AQI
27th April 2025
71AQI
71AQI
28th April 2025
68AQI
68AQI
29th April 2025
66AQI
66AQI
30th April 2025
64AQI
64AQI
1st May 2025
73AQI
73AQI
2nd May 2025
69AQI
69AQI
3rd May 2025
80AQI
80AQI
4th May 2025
55AQI
55AQI
5th May 2025
73AQI
73AQI
6th May 2025
82AQI
82AQI
7th May 2025
84AQI
84AQI
8th May 2025
71AQI
71AQI
9th May 2025
69AQI
69AQI
10th May 2025
64AQI
64AQI
11th May 2025
66AQI
66AQI
12th May 2025
71AQI
71AQI
13th May 2025
69AQI
69AQI
14th May 2025
64AQI
64AQI
15th May 2025
62AQI
62AQI
16th May 2025
63AQI
63AQI
17th May 2025
73AQI
73AQI
18th May 2025
70AQI
70AQI
19th May 2025
62AQI
62AQI
20th May 2025
60AQI
60AQI
21st May 2025
48AQI
48AQI
22nd May 2025
62AQI
62AQI
23rd May 2025
50AQI
50AQI
24th May 2025
70AQI
70AQI
25th May 2025
84AQI
84AQI
26th May 2025
68AQI
68AQI
27th May 2025
67AQI
67AQI
28th May 2025
61AQI
61AQI
29th May 2025
61AQI
61AQI
30th May 2025
72AQI
72AQI
31st May 2025
73AQI
73AQI
1st June 2025
64AQI
64AQI
2nd June 2025
62AQI
62AQI
3rd June 2025
60AQI
60AQI
4th June 2025
70AQI
70AQI
5th June 2025
56AQI
56AQI
6th June 2025
67AQI
67AQI
7th June 2025
65AQI
65AQI
8th June 2025
68AQI
68AQI
9th June 2025
60AQI
60AQI
10th June 2025
59AQI
59AQI
11th June 2025
38AQI
38AQI
12th June 2025
49AQI
49AQI
13th June 2025
38AQI
38AQI
14th June 2025
49AQI
49AQI
15th June 2025
40AQI
40AQI
16th June 2025
47AQI
47AQI
17th June 2025
56AQI
56AQI
18th June 2025
56AQI
56AQI
19th June 2025
53AQI
53AQI
20th June 2025
49AQI
49AQI
21st June 2025
60AQI
60AQI
22nd June 2025
61AQI
61AQI
23rd June 2025
56AQI
56AQI
24th June 2025
58AQI
58AQI
25th June 2025
58AQI
58AQI
26th June 2025
60AQI
60AQI
27th June 2025
59AQI
59AQI
28th June 2025
55AQI
55AQI
29th June 2025
48AQI
48AQI
30th June 2025
43AQI
43AQI
1st July 2025
46AQI
46AQI
2nd July 2025
53AQI
53AQI
3rd July 2025
52AQI
52AQI
4th July 2025
53AQI
53AQI
5th July 2025
48AQI
48AQI
6th July 2025
43AQI
43AQI
7th July 2025
38AQI
38AQI
8th July 2025
42AQI
42AQI
9th July 2025
45AQI
45AQI
10th July 2025
52AQI
52AQI
11th July 2025
44AQI
44AQI
12th July 2025
47AQI
47AQI
13th July 2025
53AQI
53AQI
14th July 2025
59AQI
59AQI
15th July 2025
63AQI
63AQI
16th July 2025
62AQI
62AQI
17th July 2025
62AQI
62AQI
18th July 2025
56AQI
56AQI
19th July 2025
47AQI
47AQI
20th July 2025
46AQI
46AQI
21st July 2025
41AQI
41AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
39AQI
39AQI
24th July 2025
40AQI
40AQI
25th July 2025
39AQI
39AQI
26th July 2025
41AQI
41AQI
27th July 2025
41AQI
41AQI
28th July 2025
38AQI
38AQI
29th July 2025
38AQI
38AQI
30th July 2025
38AQI
38AQI
31st July 2025
50AQI
50AQI
1st August 2025
54AQI
54AQI
2nd August 2025
58AQI
58AQI
3rd August 2025
59AQI
59AQI
105AQI
97AQI
81AQI
80AQI
68AQI
55AQI
47AQI
57AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202576AQI
13
17
1
16
12
1
26
4
27
3
2
29
9
21
21
10
3
33
145
36
1
Highest AQI recorded in
January105AQI
Lowest AQI recorded in
July47AQI
202466AQI
5
8
3
5
7
1
29
10
21
5
26
14
15
12
18
1
9
20
1
15
16
56
156
26
3
Highest AQI recorded in
January120AQI
Lowest AQI recorded in
May47AQI
202379AQI
3
2
24
5
2
27
5
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
November71AQI
202267AQI
3
6
2
3
13
5
7
20
4
5
21
3
10
19
2
14
16
8
14
2
1
1
7
20
1
2
58
132
19
Highest AQI recorded in
February79AQI
Lowest AQI recorded in
June55AQI
202167AQI
11
8
1
12
12
19
12
23
8
9
21
14
7
2
1
20
8
13
15
2
78
104
33
3
Highest AQI recorded in
December107AQI
Lowest AQI recorded in
August44AQI
202065AQI
4
9
17
4
4
14
10
20
9
21
13
17
6
24
4
27
5
21
4
1
24
5
1
56
194
13
1
Highest AQI recorded in
April84AQI
Lowest AQI recorded in
June54AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
79AQILeast Polluted Year Recorded
2020(Avg.)
65AQISanmen Ring Supervision Station's annual 2025 AQI (76) shows an average percentage change of 10.9% (worsened AQI) compared to previous years: 2020 (65), 2021 (67), 2022 (67), 2023 (79), 2024 (66).
