Quang Ninh Nam Cau Trang, Ha Long, Quang Ninh, Vietnam 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
Quang Ninh Nam Cau Trang, Ha Long, Quang Ninh, Vietnam
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Aug 2025
57AQILowest AQI recorded on
14th Aug 2024
21AQISame Day Analysis (3rd August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 57 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Quang Ninh Nam Cau Trang, Ha Long, Quang Ninh, Vietnam
AQI
Day
Night
.
5 AM4th Aug 2025
6 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
7AM4th Aug
64AQI
Avg. Lowest Time
4PM4th Aug
53AQI
Night time
Avg. Highest Time
8PM4th Aug
61AQI
Avg. Lowest Time
3AM5th Aug
56AQI
In the last 24 hours,
Quang Ninh Nam Cau Trang's AQI reached its highest point of 64 at 7 AM during the Day, while the lowest point, 53, was recorded at 4 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Quang Ninh Nam Cau Trang, Ha Long, Quang Ninh, Vietnam
JulAug
06th - 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 - 05th05th
Day
Night
6th Jul 2025465 AMAQI
6th Jul 2025466 AMAQI
6th Jul 2025517 AMAQI
6th Jul 2025578 AMAQI
6th Jul 2025569 AMAQI
6th Jul 20255110 AMAQI
6th Jul 20255211 AMAQI
6th Jul 20255612 PMAQI
6th Jul 2025611 PMAQI
6th Jul 2025552 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025524 PMAQI
6th Jul 2025485 PMAQI
6th Jul 2025486 PMAQI
6th Jul 2025537 PMAQI
6th Jul 2025548 PMAQI
6th Jul 2025569 PMAQI
6th Jul 20255610 PMAQI
6th Jul 20255611 PMAQI
7th Jul 20255212 AMAQI
7th Jul 2025491 AMAQI
7th Jul 2025502 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025524 AMAQI
29°C26/32°C
7th Jul 2025525 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025607 AMAQI
7th Jul 2025648 AMAQI
7th Jul 2025649 AMAQI
7th Jul 20256710 AMAQI
7th Jul 20255711 AMAQI
7th Jul 20255412 PMAQI
7th Jul 2025531 PMAQI
7th Jul 2025532 PMAQI
7th Jul 2025563 PMAQI
7th Jul 2025544 PMAQI
7th Jul 2025535 PMAQI
7th Jul 2025546 PMAQI
7th Jul 2025547 PMAQI
7th Jul 2025578 PMAQI
7th Jul 2025569 PMAQI
7th Jul 20255610 PMAQI
7th Jul 20255711 PMAQI
8th Jul 20255312 AMAQI
8th Jul 2025511 AMAQI
8th Jul 2025522 AMAQI
8th Jul 2025543 AMAQI
8th Jul 2025544 AMAQI
29°C26/32°C
8th Jul 2025545 AMAQI
8th Jul 2025546 AMAQI
8th Jul 2025597 AMAQI
8th Jul 2025578 AMAQI
8th Jul 2025569 AMAQI
8th Jul 20255610 AMAQI
8th Jul 20255511 AMAQI
8th Jul 20255312 PMAQI
8th Jul 2025531 PMAQI
8th Jul 2025522 PMAQI
8th Jul 2025523 PMAQI
8th Jul 2025534 PMAQI
8th Jul 2025525 PMAQI
8th Jul 2025506 PMAQI
8th Jul 2025537 PMAQI
8th Jul 2025608 PMAQI
8th Jul 2025609 PMAQI
8th Jul 20255810 PMAQI
8th Jul 20255911 PMAQI
9th Jul 20255912 AMAQI
9th Jul 2025531 AMAQI
9th Jul 2025532 AMAQI
9th Jul 2025533 AMAQI
9th Jul 2025524 AMAQI
29°C26/33°C
9th Jul 2025525 AMAQI
9th Jul 2025526 AMAQI
9th Jul 2025597 AMAQI
9th Jul 2025668 AMAQI
9th Jul 2025649 AMAQI
9th Jul 20256210 AMAQI
9th Jul 20255511 AMAQI
9th Jul 20255812 PMAQI
9th Jul 2025571 PMAQI
9th Jul 2025582 PMAQI
9th Jul 2025603 PMAQI
9th Jul 2025634 PMAQI
9th Jul 2025645 PMAQI
9th Jul 2025606 PMAQI
9th Jul 2025577 PMAQI
9th Jul 2025568 PMAQI
9th Jul 2025599 PMAQI
9th Jul 20255910 PMAQI
9th Jul 20255811 PMAQI
10th Jul 20255612 AMAQI
10th Jul 2025541 AMAQI
10th Jul 2025542 AMAQI
10th Jul 2025553 AMAQI
10th Jul 2025554 AMAQI
30°C27/34°C
10th Jul 2025555 AMAQI
10th Jul 2025556 AMAQI
10th Jul 2025487 AMAQI
10th Jul 2025468 AMAQI
10th Jul 2025419 AMAQI
10th Jul 20255010 AMAQI
10th Jul 20255511 AMAQI
10th Jul 20255712 PMAQI
10th Jul 2025561 PMAQI
10th Jul 2025542 PMAQI
10th Jul 2025503 PMAQI
10th Jul 2025524 PMAQI
10th Jul 2025525 PMAQI
10th Jul 2025506 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025568 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20256210 PMAQI
10th Jul 20256111 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025541 AMAQI
11th Jul 2025542 AMAQI
11th Jul 2025533 AMAQI
11th Jul 2025544 AMAQI
29°C26/33°C
11th Jul 2025525 AMAQI
11th Jul 2025536 AMAQI
11th Jul 2025427 AMAQI
11th Jul 2025488 AMAQI
11th Jul 2025549 AMAQI
11th Jul 20255710 AMAQI
11th Jul 20255811 AMAQI
11th Jul 20255812 PMAQI
11th Jul 2025571 PMAQI
11th Jul 2025552 PMAQI
11th Jul 2025533 PMAQI
11th Jul 2025534 PMAQI
11th Jul 2025515 PMAQI
11th Jul 2025536 PMAQI
11th Jul 2025527 PMAQI
11th Jul 2025548 PMAQI
11th Jul 2025559 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255711 PMAQI
12th Jul 20255812 AMAQI
12th Jul 2025541 AMAQI
12th Jul 2025542 AMAQI
12th Jul 2025533 AMAQI
12th Jul 2025534 AMAQI
28°C26/31°C
12th Jul 2025535 AMAQI
12th Jul 2025536 AMAQI
12th Jul 2025557 AMAQI
12th Jul 2025568 AMAQI
12th Jul 2025549 AMAQI
12th Jul 20255610 AMAQI
12th Jul 20255711 AMAQI
12th Jul 20255812 PMAQI
12th Jul 2025581 PMAQI
12th Jul 2025582 PMAQI
12th Jul 2025573 PMAQI
12th Jul 2025554 PMAQI
12th Jul 2025565 PMAQI
12th Jul 2025586 PMAQI
12th Jul 2025567 PMAQI
12th Jul 2025548 PMAQI
12th Jul 2025559 PMAQI
12th Jul 20255610 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255712 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025542 AMAQI
13th Jul 2025543 AMAQI
13th Jul 2025544 AMAQI
28°C25/32°C
13th Jul 2025535 AMAQI
13th Jul 2025536 AMAQI
13th Jul 2025627 AMAQI
13th Jul 2025738 AMAQI
13th Jul 2025719 AMAQI
13th Jul 20257510 AMAQI
13th Jul 20257511 AMAQI
13th Jul 20256812 PMAQI
13th Jul 2025661 PMAQI
13th Jul 2025632 PMAQI
13th Jul 2025673 PMAQI
13th Jul 2025644 PMAQI
13th Jul 2025625 PMAQI
13th Jul 2025686 PMAQI
13th Jul 2025667 PMAQI
13th Jul 2025678 PMAQI
13th Jul 2025629 PMAQI
13th Jul 20256310 PMAQI
13th Jul 20257111 PMAQI
14th Jul 20256812 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025552 AMAQI
14th Jul 2025563 AMAQI
14th Jul 2025564 AMAQI
28°C26/31°C
14th Jul 2025565 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025707 AMAQI
14th Jul 2025848 AMAQI
14th Jul 2025939 AMAQI
14th Jul 20258710 AMAQI
14th Jul 20257811 AMAQI
14th Jul 20257312 PMAQI
14th Jul 2025691 PMAQI
14th Jul 2025632 PMAQI
14th Jul 2025563 PMAQI
14th Jul 2025554 PMAQI
14th Jul 2025555 PMAQI
14th Jul 2025566 PMAQI
14th Jul 2025587 PMAQI
14th Jul 2025598 PMAQI
14th Jul 2025609 PMAQI
14th Jul 20256010 PMAQI
14th Jul 20255911 PMAQI
15th Jul 20255712 AMAQI
15th Jul 2025561 AMAQI
15th Jul 2025602 AMAQI
15th Jul 2025583 AMAQI
15th Jul 2025584 AMAQI
29°C26/32°C
15th Jul 2025585 AMAQI
15th Jul 2025586 AMAQI
15th Jul 2025627 AMAQI
15th Jul 2025638 AMAQI
15th Jul 2025699 AMAQI
15th Jul 20257010 AMAQI
15th Jul 20256211 AMAQI
15th Jul 20256412 PMAQI
15th Jul 2025591 PMAQI
15th Jul 2025612 PMAQI
15th Jul 2025573 PMAQI
15th Jul 2025574 PMAQI
15th Jul 2025565 PMAQI
15th Jul 2025586 PMAQI
15th Jul 2025597 PMAQI
15th Jul 2025588 PMAQI
15th Jul 2025599 PMAQI
15th Jul 20256010 PMAQI
15th Jul 20255911 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025571 AMAQI
16th Jul 2025582 AMAQI
16th Jul 2025583 AMAQI
16th Jul 2025584 AMAQI
29°C27/32°C
16th Jul 2025585 AMAQI
16th Jul 2025576 AMAQI
16th Jul 2025587 AMAQI
16th Jul 2025588 AMAQI
16th Jul 2025609 AMAQI
16th Jul 20255810 AMAQI
16th Jul 20256011 AMAQI
16th Jul 20255612 PMAQI
16th Jul 2025551 PMAQI
16th Jul 2025542 PMAQI
16th Jul 2025503 PMAQI
16th Jul 2025474 PMAQI
16th Jul 2025525 PMAQI
16th Jul 2025526 PMAQI
16th Jul 2025557 PMAQI
16th Jul 2025568 PMAQI
16th Jul 2025569 PMAQI
16th Jul 20255610 PMAQI
16th Jul 20255611 PMAQI
17th Jul 20255512 AMAQI
17th Jul 2025571 AMAQI
17th Jul 2025572 AMAQI
17th Jul 2025563 AMAQI
17th Jul 2025564 AMAQI
29°C27/32°C
17th Jul 2025565 AMAQI
17th Jul 2025566 AMAQI
17th Jul 2025437 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025559 AMAQI
17th Jul 20255210 AMAQI
17th Jul 20255411 AMAQI
17th Jul 20255612 PMAQI
17th Jul 2025551 PMAQI
17th Jul 2025542 PMAQI
17th Jul 2025543 PMAQI
17th Jul 2025564 PMAQI
17th Jul 2025585 PMAQI
17th Jul 2025586 PMAQI
17th Jul 2025607 PMAQI
17th Jul 2025608 PMAQI
17th Jul 2025629 PMAQI
17th Jul 20256110 PMAQI
17th Jul 20256111 PMAQI
18th Jul 20255612 AMAQI
18th Jul 2025561 AMAQI
18th Jul 2025562 AMAQI
18th Jul 2025553 AMAQI
18th Jul 2025554 AMAQI
29°C27/33°C
18th Jul 2025555 AMAQI
18th Jul 2025566 AMAQI
18th Jul 2025597 AMAQI
18th Jul 2025618 AMAQI
18th Jul 2025609 AMAQI
18th Jul 20255810 AMAQI
18th Jul 20255811 AMAQI
18th Jul 20255612 PMAQI
18th Jul 2025561 PMAQI
18th Jul 2025562 PMAQI
18th Jul 2025543 PMAQI
18th Jul 2025554 PMAQI
18th Jul 2025545 PMAQI
18th Jul 2025546 PMAQI
18th Jul 2025547 PMAQI
18th Jul 2025548 PMAQI
18th Jul 2025549 PMAQI
18th Jul 20255510 PMAQI
18th Jul 20255911 PMAQI
19th Jul 20256112 AMAQI
19th Jul 2025551 AMAQI
19th Jul 2025552 AMAQI
19th Jul 2025543 AMAQI
19th Jul 2025554 AMAQI
30°C27/34°C
19th Jul 2025545 AMAQI
19th Jul 2025556 AMAQI
19th Jul 2025587 AMAQI
19th Jul 2025708 AMAQI
19th Jul 2025779 AMAQI
19th Jul 20257510 AMAQI
19th Jul 20257111 AMAQI
19th Jul 20256612 PMAQI
19th Jul 2025681 PMAQI
19th Jul 2025682 PMAQI
19th Jul 2025633 PMAQI
19th Jul 2025654 PMAQI
19th Jul 2025605 PMAQI
19th Jul 2025606 PMAQI
19th Jul 2025597 PMAQI
19th Jul 2025598 PMAQI
19th Jul 2025619 PMAQI
19th Jul 20255810 PMAQI
19th Jul 20255611 PMAQI
20th Jul 20255712 AMAQI
20th Jul 2025561 AMAQI
20th Jul 2025562 AMAQI
20th Jul 2025583 AMAQI
20th Jul 2025574 AMAQI
29°C25/35°C
20th Jul 2025585 AMAQI
20th Jul 2025586 AMAQI
20th Jul 2025487 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025509 AMAQI
20th Jul 20254610 AMAQI
20th Jul 20254911 AMAQI
20th Jul 20255012 PMAQI
20th Jul 2025491 PMAQI
20th Jul 2025542 PMAQI
20th Jul 2025523 PMAQI
20th Jul 2025534 PMAQI
20th Jul 2025545 PMAQI
20th Jul 2025546 PMAQI
20th Jul 2025587 PMAQI
20th Jul 2025558 PMAQI
20th Jul 2025509 PMAQI
20th Jul 20254210 PMAQI
20th Jul 20255011 PMAQI
21st Jul 20255412 AMAQI
21st Jul 2025561 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025553 AMAQI
21st Jul 2025544 AMAQI
26°C24/29°C
21st Jul 2025555 AMAQI
21st Jul 2025556 AMAQI
21st Jul 2025507 AMAQI
21st Jul 2025448 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20253610 AMAQI
21st Jul 20254111 AMAQI
21st Jul 20254112 PMAQI
21st Jul 2025421 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025363 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025325 PMAQI
21st Jul 2025376 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025508 PMAQI
21st Jul 2025479 PMAQI
21st Jul 20255210 PMAQI
21st Jul 20255311 PMAQI
22nd Jul 20255512 AMAQI
22nd Jul 2025561 AMAQI
22nd Jul 2025572 AMAQI
22nd Jul 2025563 AMAQI
22nd Jul 2025564 AMAQI
26°C25/26°C
22nd Jul 2025565 AMAQI
22nd Jul 2025556 AMAQI
22nd Jul 2025427 AMAQI
22nd Jul 2025318 AMAQI
22nd Jul 2025259 AMAQI
22nd Jul 20252310 AMAQI
22nd Jul 20252911 AMAQI
22nd Jul 20253312 PMAQI
22nd Jul 2025411 PMAQI
22nd Jul 2025362 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025374 PMAQI
22nd Jul 2025425 PMAQI
22nd Jul 2025366 PMAQI
22nd Jul 2025477 PMAQI
22nd Jul 2025518 PMAQI
22nd Jul 2025529 PMAQI
22nd Jul 20255210 PMAQI
22nd Jul 20255011 PMAQI
23rd Jul 20255212 AMAQI
23rd Jul 2025541 AMAQI
23rd Jul 2025542 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025524 AMAQI
27°C26/28°C
23rd Jul 2025525 AMAQI
23rd Jul 2025526 AMAQI
23rd Jul 2025367 AMAQI
23rd Jul 2025268 AMAQI
23rd Jul 2025349 AMAQI
23rd Jul 20253410 AMAQI
23rd Jul 20253811 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025421 PMAQI
23rd Jul 2025412 PMAQI
23rd Jul 2025373 PMAQI
23rd Jul 2025354 PMAQI
23rd Jul 2025345 PMAQI
23rd Jul 2025356 PMAQI
23rd Jul 2025467 PMAQI
23rd Jul 2025458 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254710 PMAQI
23rd Jul 20254811 PMAQI
24th Jul 20255012 AMAQI
24th Jul 2025501 AMAQI
24th Jul 2025492 AMAQI
24th Jul 2025473 AMAQI
24th Jul 2025474 AMAQI
28°C26/30°C
24th Jul 2025465 AMAQI
24th Jul 2025476 AMAQI
24th Jul 2025337 AMAQI
24th Jul 2025308 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20253210 AMAQI
24th Jul 20253511 AMAQI
24th Jul 20253112 PMAQI
24th Jul 2025321 PMAQI
24th Jul 2025352 PMAQI
24th Jul 2025353 PMAQI
24th Jul 2025334 PMAQI
24th Jul 2025365 PMAQI
24th Jul 2025376 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025448 PMAQI
24th Jul 2025419 PMAQI
24th Jul 20254410 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254812 AMAQI
25th Jul 2025481 AMAQI
25th Jul 2025452 AMAQI
25th Jul 2025473 AMAQI
25th Jul 2025464 AMAQI
27°C26/29°C
25th Jul 2025465 AMAQI
25th Jul 2025456 AMAQI
25th Jul 2025447 AMAQI
25th Jul 2025508 AMAQI
25th Jul 2025579 AMAQI
25th Jul 20255810 AMAQI
25th Jul 20255311 AMAQI
25th Jul 20255312 PMAQI
25th Jul 2025461 PMAQI
25th Jul 2025452 PMAQI
25th Jul 2025403 PMAQI
25th Jul 2025454 PMAQI
25th Jul 2025485 PMAQI
25th Jul 2025436 PMAQI
25th Jul 2025407 PMAQI
25th Jul 2025438 PMAQI
25th Jul 2025469 PMAQI
25th Jul 20255210 PMAQI
25th Jul 20255311 PMAQI
26th Jul 20255012 AMAQI
26th Jul 2025471 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025443 AMAQI
26th Jul 2025444 AMAQI
28°C25/31°C
26th Jul 2025445 AMAQI
26th Jul 2025446 AMAQI
26th Jul 2025557 AMAQI
26th Jul 2025598 AMAQI
26th Jul 2025629 AMAQI
26th Jul 20256210 AMAQI
26th Jul 20256211 AMAQI
26th Jul 20256012 PMAQI
26th Jul 2025601 PMAQI
26th Jul 2025592 PMAQI
26th Jul 2025593 PMAQI
26th Jul 2025584 PMAQI
26th Jul 2025575 PMAQI
26th Jul 2025546 PMAQI
26th Jul 2025547 PMAQI
26th Jul 2025548 PMAQI
26th Jul 2025549 PMAQI
26th Jul 20255110 PMAQI
26th Jul 20255111 PMAQI
27th Jul 20255012 AMAQI
27th Jul 2025501 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025503 AMAQI
27th Jul 2025494 AMAQI
29°C25/32°C
27th Jul 2025495 AMAQI
27th Jul 2025496 AMAQI
27th Jul 2025517 AMAQI
27th Jul 2025608 AMAQI
27th Jul 2025629 AMAQI
27th Jul 20256710 AMAQI
27th Jul 20255911 AMAQI
27th Jul 20256512 PMAQI
27th Jul 2025641 PMAQI
27th Jul 2025612 PMAQI
27th Jul 2025603 PMAQI
27th Jul 2025594 PMAQI
27th Jul 2025555 PMAQI
27th Jul 2025556 PMAQI
27th Jul 2025507 PMAQI
27th Jul 2025488 PMAQI
27th Jul 2025529 PMAQI
27th Jul 20255210 PMAQI
27th Jul 20254811 PMAQI
28th Jul 20254612 AMAQI
28th Jul 2025461 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025483 AMAQI
28th Jul 2025484 AMAQI
29°C26/32°C
28th Jul 2025485 AMAQI
28th Jul 2025496 AMAQI
28th Jul 2025477 AMAQI
28th Jul 2025488 AMAQI
28th Jul 2025559 AMAQI
28th Jul 20255410 AMAQI
28th Jul 20255111 AMAQI
28th Jul 20254412 PMAQI
28th Jul 2025511 PMAQI
28th Jul 2025512 PMAQI
28th Jul 2025513 PMAQI
28th Jul 2025524 PMAQI
28th Jul 2025515 PMAQI
28th Jul 2025526 PMAQI
28th Jul 2025567 PMAQI
28th Jul 2025568 PMAQI
28th Jul 2025609 PMAQI
28th Jul 20256010 PMAQI
28th Jul 20255711 PMAQI
29th Jul 20255312 AMAQI
29th Jul 2025461 AMAQI
29th Jul 2025472 AMAQI
29th Jul 2025473 AMAQI
29th Jul 2025464 AMAQI
29°C26/32°C
29th Jul 2025465 AMAQI
29th Jul 2025466 AMAQI
29th Jul 2025547 AMAQI
29th Jul 2025658 AMAQI
29th Jul 2025649 AMAQI
29th Jul 20256810 AMAQI
29th Jul 20256811 AMAQI
29th Jul 20257212 PMAQI
29th Jul 2025731 PMAQI
29th Jul 2025722 PMAQI
29th Jul 2025683 PMAQI
29th Jul 2025704 PMAQI
29th Jul 2025715 PMAQI
29th Jul 2025706 PMAQI
29th Jul 2025637 PMAQI
29th Jul 2025628 PMAQI
29th Jul 2025609 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255811 PMAQI
30th Jul 20255612 AMAQI
30th Jul 2025521 AMAQI
30th Jul 2025522 AMAQI
30th Jul 2025533 AMAQI
30th Jul 2025534 AMAQI
30°C27/33°C
30th Jul 2025535 AMAQI
30th Jul 2025526 AMAQI
30th Jul 2025537 AMAQI
30th Jul 2025558 AMAQI
30th Jul 2025559 AMAQI
30th Jul 20255710 AMAQI
30th Jul 20256011 AMAQI
30th Jul 20256212 PMAQI
30th Jul 2025611 PMAQI
30th Jul 2025612 PMAQI
30th Jul 2025613 PMAQI
30th Jul 2025644 PMAQI
30th Jul 2025635 PMAQI
30th Jul 2025616 PMAQI
30th Jul 2025587 PMAQI
30th Jul 2025568 PMAQI
30th Jul 2025559 PMAQI
30th Jul 20255410 PMAQI
30th Jul 20255411 PMAQI
31st Jul 20255512 AMAQI
31st Jul 2025551 AMAQI
31st Jul 2025522 AMAQI
31st Jul 2025523 AMAQI
31st Jul 2025524 AMAQI
30°C28/34°C
31st Jul 2025525 AMAQI
31st Jul 2025526 AMAQI
31st Jul 2025527 AMAQI
31st Jul 2025528 AMAQI
31st Jul 2025569 AMAQI
31st Jul 20255710 AMAQI
31st Jul 20255911 AMAQI
31st Jul 20256012 PMAQI
31st Jul 2025611 PMAQI
31st Jul 2025622 PMAQI
31st Jul 2025613 PMAQI
31st Jul 2025604 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025576 PMAQI
31st Jul 2025567 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025589 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255711 PMAQI
1st Aug 20255612 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025512 AMAQI
1st Aug 2025523 AMAQI
1st Aug 2025504 AMAQI
30°C28/33°C
1st Aug 2025535 AMAQI
1st Aug 2025546 AMAQI
1st Aug 2025647 AMAQI
1st Aug 2025698 AMAQI
1st Aug 2025599 AMAQI
1st Aug 20256010 AMAQI
1st Aug 20255611 AMAQI
1st Aug 20256212 PMAQI
1st Aug 2025511 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025463 PMAQI
1st Aug 2025514 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025526 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025539 PMAQI
1st Aug 20255410 PMAQI
1st Aug 20255011 PMAQI
2nd Aug 20255512 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025554 AMAQI
28°C26/30°C
2nd Aug 2025565 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025487 AMAQI
2nd Aug 2025508 AMAQI
2nd Aug 2025479 AMAQI
2nd Aug 20255010 AMAQI
2nd Aug 20255011 AMAQI
2nd Aug 20254712 PMAQI
2nd Aug 2025511 PMAQI
2nd Aug 2025502 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025564 PMAQI
2nd Aug 2025585 PMAQI
2nd Aug 2025596 PMAQI
2nd Aug 2025577 PMAQI
2nd Aug 2025578 PMAQI
2nd Aug 2025609 PMAQI
2nd Aug 20255810 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025554 AMAQI
29°C26/34°C
3rd Aug 2025555 AMAQI
3rd Aug 2025546 AMAQI
3rd Aug 2025577 AMAQI
3rd Aug 2025628 AMAQI
3rd Aug 2025649 AMAQI
3rd Aug 20256810 AMAQI
3rd Aug 20256311 AMAQI
3rd Aug 20255912 PMAQI
3rd Aug 2025571 PMAQI
3rd Aug 2025572 PMAQI
3rd Aug 2025543 PMAQI
3rd Aug 2025504 PMAQI
3rd Aug 2025585 PMAQI
3rd Aug 2025566 PMAQI
3rd Aug 2025567 PMAQI
3rd Aug 2025578 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255910 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255512 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025574 AMAQI
30°C28/33°C
4th Aug 2025565 AMAQI
4th Aug 2025576 AMAQI
4th Aug 2025647 AMAQI
4th Aug 2025598 AMAQI
4th Aug 2025629 AMAQI
4th Aug 20255810 AMAQI
4th Aug 20255811 AMAQI
4th Aug 20255412 PMAQI
4th Aug 2025581 PMAQI
4th Aug 2025572 PMAQI
4th Aug 2025543 PMAQI
4th Aug 2025534 PMAQI
4th Aug 2025545 PMAQI
4th Aug 2025556 PMAQI
4th Aug 2025577 PMAQI
4th Aug 2025618 PMAQI
4th Aug 2025599 PMAQI
4th Aug 20255810 PMAQI
4th Aug 20255711 PMAQI
5th Aug 20255612 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025572 AMAQI
5th Aug 2025563 AMAQI
5th Aug 2025574 AMAQI
30°C28/33°C
5th Aug 2025575 AMAQI
5 AM5th Aug 2025576 AMAQI
5th Aug 2025597 AMAQI
5th Aug 2025578 AMAQI
5th Aug 2025569 AMAQI
5th Aug 20255310 AMAQI
5th Aug 20255411 AMAQI
11 AM5th Aug 20255312 PMAQI
5th Aug 2025581 PMAQI
5th Aug 2025542 PMAQI
5th Aug 2025573 PMAQI
5th Aug 2025544 PMAQI
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
54AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 PM
54AQI
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. 54), while the lowest AQI was between 5 AM to 6 PM (Avg. 54).
Night time
Avg. Highest Time
12 AM - 11 PM
54AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
54AQI
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. 54), while the lowest AQI was between 12 AM to 11 PM (Avg. 54).
2025 Days Vs Air Quality
Quang Ninh Nam Cau Trang, Ha Long, Quang Ninh, Vietnam
2025
7%
15
79%
169
13%
28
1%
3
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
15 DaysModerate
169 DaysPoor
28 DaysUnhealthy
3 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 7%
Health Risk Level:
Extreme
In 2025, 7% of 217 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
Quang Ninh Nam Cau Trang, Ha Long, Quang Ninh, Vietnam
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
139AQI
139AQI
2nd January 2025
136AQI
136AQI
3rd January 2025
113AQI
113AQI
4th January 2025
104AQI
104AQI
5th January 2025
117AQI
117AQI
6th January 2025
128AQI
128AQI
7th January 2025
105AQI
105AQI
8th January 2025
111AQI
111AQI
9th January 2025
127AQI
127AQI
10th January 2025
86AQI
86AQI
11th January 2025
98AQI
98AQI
12th January 2025
98AQI
98AQI
13th January 2025
117AQI
117AQI
14th January 2025
130AQI
130AQI
15th January 2025
125AQI
125AQI
16th January 2025
133AQI
133AQI
17th January 2025
145AQI
145AQI
18th January 2025
154AQI
154AQI
19th January 2025
157AQI
157AQI
20th January 2025
172AQI
172AQI
21st January 2025
135AQI
135AQI
22nd January 2025
120AQI
120AQI
23rd January 2025
110AQI
110AQI
24th January 2025
106AQI
106AQI
25th January 2025
89AQI
89AQI
26th January 2025
61AQI
61AQI
27th January 2025
81AQI
81AQI
28th January 2025
76AQI
76AQI
29th January 2025
121AQI
121AQI
30th January 2025
89AQI
89AQI
31st January 2025
90AQI
90AQI
1st February 2025
80AQI
80AQI
2nd February 2025
68AQI
68AQI
3rd February 2025
56AQI
56AQI
4th February 2025
64AQI
64AQI
5th February 2025
95AQI
95AQI
6th February 2025
78AQI
78AQI
7th February 2025
62AQI
62AQI
8th February 2025
68AQI
68AQI
9th February 2025
79AQI
79AQI
10th February 2025
119AQI
119AQI
11th February 2025
129AQI
129AQI
12th February 2025
132AQI
132AQI
13th February 2025
119AQI
119AQI
14th February 2025
108AQI
108AQI
15th February 2025
110AQI
110AQI
16th February 2025
73AQI
73AQI
17th February 2025
97AQI
97AQI
18th February 2025
64AQI
64AQI
19th February 2025
80AQI
80AQI
20th February 2025
75AQI
75AQI
21st February 2025
88AQI
88AQI
22nd February 2025
89AQI
89AQI
23rd February 2025
66AQI
66AQI
24th February 2025
72AQI
72AQI
25th February 2025
92AQI
92AQI
26th February 2025
74AQI
74AQI
27th February 2025
118AQI
118AQI
28th February 2025
73AQI
73AQI
1st March 2025
92AQI
92AQI
2nd March 2025
72AQI
72AQI
3rd March 2025
69AQI
69AQI
4th March 2025
71AQI
71AQI
5th March 2025
74AQI
74AQI
6th March 2025
64AQI
64AQI
7th March 2025
68AQI
68AQI
8th March 2025
89AQI
89AQI
9th March 2025
99AQI
99AQI
10th March 2025
116AQI
116AQI
11th March 2025
85AQI
85AQI
12th March 2025
82AQI
82AQI
13th March 2025
69AQI
69AQI
14th March 2025
64AQI
64AQI
15th March 2025
62AQI
62AQI
16th March 2025
56AQI
56AQI
17th March 2025
76AQI
76AQI
18th March 2025
73AQI
73AQI
19th March 2025
77AQI
77AQI
20th March 2025
78AQI
78AQI
21st March 2025
68AQI
68AQI
22nd March 2025
69AQI
69AQI
23rd March 2025
64AQI
64AQI
24th March 2025
66AQI
66AQI
25th March 2025
66AQI
66AQI
26th March 2025
68AQI
68AQI
27th March 2025
73AQI
73AQI
28th March 2025
72AQI
72AQI
29th March 2025
53AQI
53AQI
30th March 2025
41AQI
41AQI
31st March 2025
44AQI
44AQI
1st April 2025
50AQI
50AQI
2nd April 2025
57AQI
57AQI
3rd April 2025
63AQI
63AQI
4th April 2025
118AQI
118AQI
5th April 2025
79AQI
79AQI
6th April 2025
78AQI
78AQI
7th April 2025
80AQI
80AQI
8th April 2025
87AQI
87AQI
9th April 2025
79AQI
79AQI
10th April 2025
78AQI
78AQI
11th April 2025
74AQI
74AQI
12th April 2025
79AQI
79AQI
13th April 2025
77AQI
77AQI
14th April 2025
82AQI
82AQI
15th April 2025
84AQI
84AQI
16th April 2025
87AQI
87AQI
17th April 2025
81AQI
81AQI
18th April 2025
81AQI
81AQI
19th April 2025
76AQI
76AQI
20th April 2025
71AQI
71AQI
21st April 2025
73AQI
73AQI
22nd April 2025
74AQI
74AQI
23rd April 2025
68AQI
68AQI
24th April 2025
68AQI
68AQI
25th April 2025
62AQI
62AQI
26th April 2025
64AQI
64AQI
27th April 2025
62AQI
62AQI
28th April 2025
62AQI
62AQI
29th April 2025
84AQI
84AQI
30th April 2025
69AQI
69AQI
1st May 2025
63AQI
63AQI
2nd May 2025
64AQI
64AQI
3rd May 2025
62AQI
62AQI
4th May 2025
69AQI
69AQI
5th May 2025
72AQI
72AQI
6th May 2025
66AQI
66AQI
7th May 2025
65AQI
65AQI
8th May 2025
64AQI
64AQI
9th May 2025
63AQI
63AQI
10th May 2025
64AQI
64AQI
11th May 2025
58AQI
58AQI
12th May 2025
64AQI
64AQI
13th May 2025
62AQI
62AQI
14th May 2025
60AQI
60AQI
15th May 2025
58AQI
58AQI
16th May 2025
59AQI
59AQI
17th May 2025
56AQI
56AQI
18th May 2025
56AQI
56AQI
19th May 2025
56AQI
56AQI
20th May 2025
56AQI
56AQI
21st May 2025
60AQI
60AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
52AQI
52AQI
24th May 2025
52AQI
52AQI
25th May 2025
56AQI
56AQI
26th May 2025
61AQI
61AQI
27th May 2025
61AQI
61AQI
28th May 2025
61AQI
61AQI
29th May 2025
57AQI
57AQI
30th May 2025
56AQI
56AQI
31st May 2025
53AQI
53AQI
1st June 2025
53AQI
53AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
55AQI
55AQI
4th June 2025
54AQI
54AQI
5th June 2025
55AQI
55AQI
6th June 2025
55AQI
55AQI
7th June 2025
54AQI
54AQI
8th June 2025
54AQI
54AQI
9th June 2025
55AQI
55AQI
10th June 2025
55AQI
55AQI
11th June 2025
56AQI
56AQI
12th June 2025
53AQI
53AQI
13th June 2025
53AQI
53AQI
14th June 2025
55AQI
55AQI
15th June 2025
56AQI
56AQI
16th June 2025
58AQI
58AQI
17th June 2025
57AQI
57AQI
18th June 2025
57AQI
57AQI
19th June 2025
61AQI
61AQI
20th June 2025
59AQI
59AQI
21st June 2025
60AQI
60AQI
22nd June 2025
60AQI
60AQI
23rd June 2025
60AQI
60AQI
24th June 2025
59AQI
59AQI
25th June 2025
56AQI
56AQI
26th June 2025
54AQI
54AQI
27th June 2025
48AQI
48AQI
28th June 2025
49AQI
49AQI
29th June 2025
45AQI
45AQI
30th June 2025
50AQI
50AQI
1st July 2025
40AQI
40AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
44AQI
44AQI
4th July 2025
53AQI
53AQI
5th July 2025
55AQI
55AQI
6th July 2025
52AQI
52AQI
7th July 2025
55AQI
55AQI
8th July 2025
55AQI
55AQI
9th July 2025
57AQI
57AQI
10th July 2025
54AQI
54AQI
11th July 2025
54AQI
54AQI
12th July 2025
56AQI
56AQI
13th July 2025
63AQI
63AQI
14th July 2025
63AQI
63AQI
15th July 2025
60AQI
60AQI
16th July 2025
56AQI
56AQI
17th July 2025
56AQI
56AQI
18th July 2025
56AQI
56AQI
19th July 2025
61AQI
61AQI
20th July 2025
53AQI
53AQI
21st July 2025
47AQI
47AQI
22nd July 2025
45AQI
45AQI
23rd July 2025
44AQI
44AQI
24th July 2025
41AQI
41AQI
25th July 2025
47AQI
47AQI
26th July 2025
53AQI
53AQI
27th July 2025
54AQI
54AQI
28th July 2025
51AQI
51AQI
29th July 2025
59AQI
59AQI
30th July 2025
56AQI
56AQI
31st July 2025
56AQI
56AQI
1st August 2025
54AQI
54AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
57AQI
57AQI
115AQI
87AQI
72AQI
75AQI
60AQI
55AQI
53AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202573AQI
9
19
3
21
7
2
28
1
1
28
1
31
4
26
8
23
3
15
169
28
3
Highest AQI recorded in
January115AQI
Lowest AQI recorded in
July53AQI
202451AQI
14
2
11
1
8
22
31
29
6
19
4
15
11
5
20
10
2
15
13
1
136
80
22
1
Highest AQI recorded in
December87AQI
Lowest AQI recorded in
August28AQI
202337AQI
1
2
25
6
26
8
Highest AQI recorded in
November48AQI
Lowest AQI recorded in
December36AQI
202017AQI
1
1
Highest AQI recorded in
June17AQI
Lowest AQI recorded in
June17AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2025(Avg.)
73AQILeast Polluted Year Recorded
2020(Avg.)
17AQIQuang Ninh Nam Cau Trang's annual 2025 AQI (73) shows an average percentage change of 158.09% (worsened AQI) compared to previous years: 2020 (17), 2023 (37), 2024 (51).
