Bac Ninh Chau Khe, Hanoi, Ha Noi, 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
Bac Ninh Chau Khe, Hanoi, Ha Noi, Vietnam
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Aug 2025
56AQILowest AQI recorded on
3rd Aug 2022
11AQISame Day Analysis (3rd August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 56 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
Bac Ninh Chau Khe, Hanoi, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM3rd Aug 2025
6 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12PM3rd Aug
67AQI
Avg. Lowest Time
5PM3rd Aug
51AQI
Night time
Avg. Highest Time
8PM3rd Aug
58AQI
Avg. Lowest Time
1AM4th Aug
54AQI
In the last 24 hours,
Bac Ninh Chau Khe's AQI reached its highest point of 67 at 12 PM during the Day, while the lowest point, 51, was recorded at 5 PM during the Day between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Bac Ninh Chau Khe, Hanoi, Ha Noi, Vietnam
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 2025585 AMAQI
5th Jul 2025586 AMAQI
5th Jul 2025517 AMAQI
5th Jul 2025488 AMAQI
5th Jul 2025539 AMAQI
5th Jul 20255610 AMAQI
5th Jul 20256011 AMAQI
5th Jul 20255912 PMAQI
5th Jul 2025571 PMAQI
5th Jul 2025602 PMAQI
5th Jul 2025613 PMAQI
5th Jul 2025634 PMAQI
5th Jul 2025655 PMAQI
5th Jul 2025676 PMAQI
5th Jul 2025617 PMAQI
5th Jul 2025628 PMAQI
5th Jul 2025609 PMAQI
5th Jul 20256210 PMAQI
5th Jul 20255911 PMAQI
6th Jul 20255712 AMAQI
6th Jul 2025551 AMAQI
6th Jul 2025562 AMAQI
6th Jul 2025583 AMAQI
6th Jul 2025574 AMAQI
30°C26/35°C
6th Jul 2025575 AMAQI
6th Jul 2025566 AMAQI
6th Jul 2025577 AMAQI
6th Jul 2025588 AMAQI
6th Jul 2025589 AMAQI
6th Jul 20255910 AMAQI
6th Jul 20255811 AMAQI
6th Jul 20255412 PMAQI
6th Jul 2025601 PMAQI
6th Jul 2025572 PMAQI
6th Jul 2025593 PMAQI
6th Jul 2025604 PMAQI
6th Jul 2025625 PMAQI
6th Jul 2025636 PMAQI
6th Jul 2025597 PMAQI
6th Jul 2025598 PMAQI
6th Jul 2025579 PMAQI
6th Jul 20255810 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255612 AMAQI
7th Jul 2025561 AMAQI
7th Jul 2025562 AMAQI
7th Jul 2025563 AMAQI
7th Jul 2025554 AMAQI
29°C27/33°C
7th Jul 2025565 AMAQI
7th Jul 2025556 AMAQI
7th Jul 2025567 AMAQI
7th Jul 2025588 AMAQI
7th Jul 2025649 AMAQI
7th Jul 20256610 AMAQI
7th Jul 20257011 AMAQI
7th Jul 20255812 PMAQI
7th Jul 2025571 PMAQI
7th Jul 2025542 PMAQI
7th Jul 2025563 PMAQI
7th Jul 2025554 PMAQI
7th Jul 2025545 PMAQI
7th Jul 2025546 PMAQI
7th Jul 2025567 PMAQI
7th Jul 2025558 PMAQI
7th Jul 2025579 PMAQI
7th Jul 20255910 PMAQI
7th Jul 20255911 PMAQI
8th Jul 20255812 AMAQI
8th Jul 2025581 AMAQI
8th Jul 2025562 AMAQI
8th Jul 2025583 AMAQI
8th Jul 2025584 AMAQI
30°C26/35°C
8th Jul 2025585 AMAQI
8th Jul 2025586 AMAQI
8th Jul 2025547 AMAQI
8th Jul 2025498 AMAQI
8th Jul 2025409 AMAQI
8th Jul 20254110 AMAQI
8th Jul 20258611 AMAQI
8th Jul 20255412 PMAQI
8th Jul 2025581 PMAQI
8th Jul 2025532 PMAQI
8th Jul 2025533 PMAQI
8th Jul 2025464 PMAQI
8th Jul 2025535 PMAQI
8th Jul 2025606 PMAQI
8th Jul 2025607 PMAQI
8th Jul 2025558 PMAQI
8th Jul 2025549 PMAQI
8th Jul 20255610 PMAQI
8th Jul 20255811 PMAQI
9th Jul 20258412 AMAQI
9th Jul 2025571 AMAQI
9th Jul 2025572 AMAQI
9th Jul 2025573 AMAQI
9th Jul 2025564 AMAQI
31°C27/37°C
9th Jul 2025575 AMAQI
9th Jul 2025566 AMAQI
9th Jul 2025537 AMAQI
9th Jul 2025508 AMAQI
9th Jul 2025529 AMAQI
9th Jul 20254610 AMAQI
9th Jul 20255611 AMAQI
9th Jul 20256012 PMAQI
9th Jul 2025541 PMAQI
9th Jul 2025522 PMAQI
9th Jul 2025553 PMAQI
9th Jul 2025454 PMAQI
9th Jul 2025455 PMAQI
9th Jul 2025536 PMAQI
9th Jul 2025577 PMAQI
9th Jul 2025658 PMAQI
9th Jul 2025679 PMAQI
9th Jul 20256710 PMAQI
9th Jul 20256611 PMAQI
10th Jul 20255812 AMAQI
10th Jul 2025581 AMAQI
10th Jul 2025582 AMAQI
10th Jul 2025573 AMAQI
10th Jul 2025584 AMAQI
32°C28/37°C
10th Jul 2025575 AMAQI
10th Jul 2025586 AMAQI
10th Jul 2025427 AMAQI
10th Jul 2025338 AMAQI
10th Jul 2025269 AMAQI
10th Jul 20252910 AMAQI
10th Jul 20253211 AMAQI
10th Jul 20253112 PMAQI
10th Jul 2025301 PMAQI
10th Jul 2025312 PMAQI
10th Jul 2025273 PMAQI
10th Jul 2025284 PMAQI
10th Jul 2025385 PMAQI
10th Jul 2025346 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025528 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255610 PMAQI
10th Jul 20255511 PMAQI
11th Jul 20255412 AMAQI
11th Jul 2025561 AMAQI
11th Jul 2025562 AMAQI
11th Jul 2025543 AMAQI
11th Jul 2025544 AMAQI
30°C26/35°C
11th Jul 2025555 AMAQI
11th Jul 2025546 AMAQI
11th Jul 2025437 AMAQI
11th Jul 2025328 AMAQI
11th Jul 2025309 AMAQI
11th Jul 20253510 AMAQI
11th Jul 20254111 AMAQI
11th Jul 20253612 PMAQI
11th Jul 2025301 PMAQI
11th Jul 2025402 PMAQI
11th Jul 2025343 PMAQI
11th Jul 2025344 PMAQI
11th Jul 2025405 PMAQI
11th Jul 2025376 PMAQI
11th Jul 2025457 PMAQI
11th Jul 2025488 PMAQI
11th Jul 2025519 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255311 PMAQI
12th Jul 20254612 AMAQI
12th Jul 2025541 AMAQI
12th Jul 2025502 AMAQI
12th Jul 2025523 AMAQI
12th Jul 2025404 AMAQI
29°C26/33°C
12th Jul 2025535 AMAQI
12th Jul 2025526 AMAQI
12th Jul 2025477 AMAQI
12th Jul 2025428 AMAQI
12th Jul 2025489 AMAQI
12th Jul 20254310 AMAQI
12th Jul 20253411 AMAQI
12th Jul 20253412 PMAQI
12th Jul 2025401 PMAQI
12th Jul 2025402 PMAQI
12th Jul 2025363 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025447 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025469 PMAQI
12th Jul 20254310 PMAQI
12th Jul 20254711 PMAQI
13th Jul 20254412 AMAQI
13th Jul 2025511 AMAQI
13th Jul 2025512 AMAQI
13th Jul 2025473 AMAQI
13th Jul 2025524 AMAQI
29°C26/34°C
13th Jul 2025525 AMAQI
13th Jul 2025446 AMAQI
13th Jul 2025487 AMAQI
13th Jul 2025408 AMAQI
13th Jul 2025409 AMAQI
13th Jul 20253210 AMAQI
13th Jul 20253511 AMAQI
13th Jul 20253912 PMAQI
13th Jul 2025421 PMAQI
13th Jul 2025402 PMAQI
13th Jul 2025363 PMAQI
13th Jul 2025364 PMAQI
13th Jul 2025605 PMAQI
13th Jul 2025426 PMAQI
13th Jul 2025507 PMAQI
13th Jul 2025508 PMAQI
13th Jul 2025489 PMAQI
13th Jul 20255710 PMAQI
13th Jul 20255311 PMAQI
14th Jul 20255012 AMAQI
14th Jul 2025491 AMAQI
14th Jul 2025522 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025514 AMAQI
29°C26/34°C
14th Jul 2025505 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025708 AMAQI
14th Jul 20251119 AMAQI
14th Jul 20257010 AMAQI
14th Jul 20256711 AMAQI
14th Jul 20258212 PMAQI
14th Jul 2025611 PMAQI
14th Jul 2025532 PMAQI
14th Jul 2025783 PMAQI
14th Jul 2025754 PMAQI
14th Jul 2025785 PMAQI
14th Jul 2025736 PMAQI
14th Jul 2025577 PMAQI
14th Jul 2025608 PMAQI
14th Jul 2025589 PMAQI
14th Jul 20255610 PMAQI
14th Jul 20255411 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025591 AMAQI
15th Jul 2025602 AMAQI
15th Jul 2025613 AMAQI
15th Jul 2025634 AMAQI
31°C27/35°C
15th Jul 2025615 AMAQI
15th Jul 2025606 AMAQI
15th Jul 2025587 AMAQI
15th Jul 2025588 AMAQI
15th Jul 2025599 AMAQI
15th Jul 20256010 AMAQI
15th Jul 20256611 AMAQI
15th Jul 20256712 PMAQI
15th Jul 2025661 PMAQI
15th Jul 2025662 PMAQI
15th Jul 2025683 PMAQI
15th Jul 2025654 PMAQI
15th Jul 2025675 PMAQI
15th Jul 2025686 PMAQI
15th Jul 2025607 PMAQI
15th Jul 2025648 PMAQI
15th Jul 2025589 PMAQI
15th Jul 20255810 PMAQI
15th Jul 20254911 PMAQI
16th Jul 20255612 AMAQI
16th Jul 2025741 AMAQI
16th Jul 2025582 AMAQI
16th Jul 2025613 AMAQI
16th Jul 2025604 AMAQI
30°C28/34°C
16th Jul 2025595 AMAQI
16th Jul 2025596 AMAQI
16th Jul 2025517 AMAQI
16th Jul 2025488 AMAQI
16th Jul 2025479 AMAQI
16th Jul 20254010 AMAQI
16th Jul 20253411 AMAQI
16th Jul 20254412 PMAQI
16th Jul 2025481 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025423 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025485 PMAQI
16th Jul 2025536 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025378 PMAQI
16th Jul 2025539 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255211 PMAQI
17th Jul 20255212 AMAQI
17th Jul 2025591 AMAQI
17th Jul 2025582 AMAQI
17th Jul 2025583 AMAQI
17th Jul 2025574 AMAQI
31°C27/35°C
17th Jul 2025575 AMAQI
17th Jul 2025586 AMAQI
17th Jul 2025497 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025519 AMAQI
17th Jul 20255410 AMAQI
17th Jul 20255211 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025511 PMAQI
17th Jul 2025402 PMAQI
17th Jul 2025383 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025375 PMAQI
17th Jul 2025456 PMAQI
17th Jul 2025527 PMAQI
17th Jul 2025548 PMAQI
17th Jul 2025539 PMAQI
17th Jul 20255410 PMAQI
17th Jul 20255511 PMAQI
18th Jul 20255412 AMAQI
18th Jul 2025541 AMAQI
18th Jul 2025532 AMAQI
18th Jul 2025533 AMAQI
18th Jul 2025544 AMAQI
31°C27/37°C
18th Jul 2025545 AMAQI
18th Jul 2025546 AMAQI
18th Jul 2025517 AMAQI
18th Jul 2025598 AMAQI
18th Jul 2025579 AMAQI
18th Jul 20256110 AMAQI
18th Jul 20256011 AMAQI
18th Jul 20255812 PMAQI
18th Jul 2025591 PMAQI
18th Jul 2025592 PMAQI
18th Jul 2025603 PMAQI
18th Jul 2025614 PMAQI
18th Jul 2025585 PMAQI
18th Jul 2025596 PMAQI
18th Jul 2025587 PMAQI
18th Jul 2025578 PMAQI
18th Jul 2025579 PMAQI
18th Jul 20256910 PMAQI
18th Jul 20257011 PMAQI
19th Jul 20256612 AMAQI
19th Jul 2025531 AMAQI
19th Jul 2025542 AMAQI
19th Jul 2025543 AMAQI
19th Jul 2025564 AMAQI
32°C28/37°C
19th Jul 2025555 AMAQI
19th Jul 2025566 AMAQI
19th Jul 2025687 AMAQI
19th Jul 2025718 AMAQI
19th Jul 2025779 AMAQI
19th Jul 20258310 AMAQI
19th Jul 20259011 AMAQI
19th Jul 20258612 PMAQI
19th Jul 2025881 PMAQI
19th Jul 2025792 PMAQI
19th Jul 2025803 PMAQI
19th Jul 2025594 PMAQI
19th Jul 2025585 PMAQI
19th Jul 2025586 PMAQI
19th Jul 2025647 PMAQI
19th Jul 2025708 PMAQI
19th Jul 2025649 PMAQI
19th Jul 20255610 PMAQI
19th Jul 20255711 PMAQI
20th Jul 20255812 AMAQI
20th Jul 2025591 AMAQI
20th Jul 2025602 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025614 AMAQI
31°C25/37°C
20th Jul 2025625 AMAQI
20th Jul 2025626 AMAQI
20th Jul 2025507 AMAQI
20th Jul 2025598 AMAQI
20th Jul 2025559 AMAQI
20th Jul 20255510 AMAQI
20th Jul 20255211 AMAQI
20th Jul 20255212 PMAQI
20th Jul 2025501 PMAQI
20th Jul 2025492 PMAQI
20th Jul 2025513 PMAQI
20th Jul 2025504 PMAQI
20th Jul 2025505 PMAQI
20th Jul 2025446 PMAQI
20th Jul 2025517 PMAQI
20th Jul 2025528 PMAQI
20th Jul 2025479 PMAQI
20th Jul 20255210 PMAQI
20th Jul 20255011 PMAQI
21st Jul 20255312 AMAQI
21st Jul 2025601 AMAQI
21st Jul 2025582 AMAQI
21st Jul 2025573 AMAQI
21st Jul 2025584 AMAQI
28°C25/31°C
21st Jul 2025585 AMAQI
21st Jul 2025586 AMAQI
21st Jul 2025567 AMAQI
21st Jul 2025538 AMAQI
21st Jul 2025509 AMAQI
21st Jul 20254610 AMAQI
21st Jul 20255211 AMAQI
21st Jul 20254812 PMAQI
21st Jul 2025481 PMAQI
21st Jul 2025542 PMAQI
21st Jul 2025463 PMAQI
21st Jul 2025554 PMAQI
21st Jul 2025535 PMAQI
21st Jul 2025516 PMAQI
21st Jul 2025547 PMAQI
21st Jul 2025548 PMAQI
21st Jul 2025479 PMAQI
21st Jul 20255110 PMAQI
21st Jul 20254611 PMAQI
22nd Jul 20254912 AMAQI
22nd Jul 2025561 AMAQI
22nd Jul 2025562 AMAQI
22nd Jul 2025553 AMAQI
22nd Jul 2025544 AMAQI
26°C25/27°C
22nd Jul 2025555 AMAQI
22nd Jul 2025556 AMAQI
22nd Jul 2025287 AMAQI
22nd Jul 2025208 AMAQI
22nd Jul 2025279 AMAQI
22nd Jul 20252210 AMAQI
22nd Jul 20252911 AMAQI
22nd Jul 20252312 PMAQI
22nd Jul 2025221 PMAQI
22nd Jul 2025262 PMAQI
22nd Jul 2025213 PMAQI
22nd Jul 2025214 PMAQI
22nd Jul 2025245 PMAQI
22nd Jul 2025296 PMAQI
22nd Jul 2025417 PMAQI
22nd Jul 2025358 PMAQI
22nd Jul 2025449 PMAQI
22nd Jul 20254310 PMAQI
22nd Jul 20254111 PMAQI
23rd Jul 20254512 AMAQI
23rd Jul 2025541 AMAQI
23rd Jul 2025532 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025524 AMAQI
27°C25/29°C
23rd Jul 2025525 AMAQI
23rd Jul 2025526 AMAQI
23rd Jul 2025617 AMAQI
23rd Jul 2025788 AMAQI
23rd Jul 2025529 AMAQI
23rd Jul 20255310 AMAQI
23rd Jul 20254011 AMAQI
23rd Jul 20253412 PMAQI
23rd Jul 2025261 PMAQI
23rd Jul 2025252 PMAQI
23rd Jul 2025223 PMAQI
23rd Jul 2025244 PMAQI
23rd Jul 2025245 PMAQI
23rd Jul 2025326 PMAQI
23rd Jul 2025297 PMAQI
23rd Jul 2025478 PMAQI
23rd Jul 2025469 PMAQI
23rd Jul 20254610 PMAQI
23rd Jul 20253611 PMAQI
24th Jul 20254412 AMAQI
24th Jul 2025521 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025513 AMAQI
24th Jul 2025514 AMAQI
28°C26/31°C
24th Jul 2025525 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025507 AMAQI
24th Jul 2025488 AMAQI
24th Jul 2025389 AMAQI
24th Jul 20253010 AMAQI
24th Jul 20252611 AMAQI
24th Jul 20252212 PMAQI
24th Jul 2025251 PMAQI
24th Jul 2025252 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025244 PMAQI
24th Jul 2025245 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025417 PMAQI
24th Jul 2025458 PMAQI
24th Jul 2025449 PMAQI
24th Jul 20254610 PMAQI
24th Jul 20254511 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025511 AMAQI
25th Jul 2025482 AMAQI
25th Jul 2025463 AMAQI
25th Jul 2025464 AMAQI
28°C26/32°C
25th Jul 2025475 AMAQI
25th Jul 2025486 AMAQI
25th Jul 2025587 AMAQI
25th Jul 2025648 AMAQI
25th Jul 2025709 AMAQI
25th Jul 20257710 AMAQI
25th Jul 20256611 AMAQI
25th Jul 20256412 PMAQI
25th Jul 2025531 PMAQI
25th Jul 2025382 PMAQI
25th Jul 2025443 PMAQI
25th Jul 2025494 PMAQI
25th Jul 2025465 PMAQI
25th Jul 2025386 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025528 PMAQI
25th Jul 2025489 PMAQI
25th Jul 20254510 PMAQI
25th Jul 20254511 PMAQI
26th Jul 20255012 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025512 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025524 AMAQI
29°C25/34°C
26th Jul 2025525 AMAQI
26th Jul 2025526 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025528 AMAQI
26th Jul 2025579 AMAQI
26th Jul 20256210 AMAQI
26th Jul 20255811 AMAQI
26th Jul 20255712 PMAQI
26th Jul 2025551 PMAQI
26th Jul 2025552 PMAQI
26th Jul 2025463 PMAQI
26th Jul 2025384 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025536 PMAQI
26th Jul 2025457 PMAQI
26th Jul 2025578 PMAQI
26th Jul 2025509 PMAQI
26th Jul 20255510 PMAQI
26th Jul 20251811 PMAQI
27th Jul 20253912 AMAQI
27th Jul 2025521 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025533 AMAQI
27th Jul 2025524 AMAQI
29°C26/35°C
27th Jul 2025535 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025547 AMAQI
27th Jul 2025588 AMAQI
27th Jul 2025579 AMAQI
27th Jul 20255610 AMAQI
27th Jul 20253911 AMAQI
27th Jul 20254612 PMAQI
27th Jul 2025461 PMAQI
27th Jul 2025412 PMAQI
27th Jul 2025423 PMAQI
27th Jul 2025344 PMAQI
27th Jul 2025355 PMAQI
27th Jul 2025516 PMAQI
27th Jul 2025517 PMAQI
27th Jul 2025478 PMAQI
27th Jul 2025529 PMAQI
27th Jul 20255010 PMAQI
27th Jul 20255511 PMAQI
28th Jul 20255112 AMAQI
28th Jul 2025531 AMAQI
28th Jul 2025522 AMAQI
28th Jul 2025523 AMAQI
28th Jul 2025524 AMAQI
30°C26/36°C
28th Jul 2025525 AMAQI
28th Jul 2025526 AMAQI
28th Jul 2025617 AMAQI
28th Jul 2025708 AMAQI
28th Jul 2025729 AMAQI
28th Jul 20256910 AMAQI
28th Jul 20256511 AMAQI
28th Jul 20256512 PMAQI
28th Jul 2025641 PMAQI
28th Jul 2025662 PMAQI
28th Jul 2025673 PMAQI
28th Jul 2025634 PMAQI
28th Jul 2025575 PMAQI
28th Jul 2025556 PMAQI
28th Jul 2025567 PMAQI
28th Jul 2025628 PMAQI
28th Jul 2025639 PMAQI
28th Jul 20256310 PMAQI
28th Jul 20256411 PMAQI
29th Jul 20255912 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025562 AMAQI
29th Jul 2025573 AMAQI
29th Jul 2025584 AMAQI
31°C27/35°C
29th Jul 2025585 AMAQI
29th Jul 2025576 AMAQI
29th Jul 2025697 AMAQI
29th Jul 2025728 AMAQI
29th Jul 2025729 AMAQI
29th Jul 20257110 AMAQI
29th Jul 20258011 AMAQI
29th Jul 20258312 PMAQI
29th Jul 2025841 PMAQI
29th Jul 2025782 PMAQI
29th Jul 2025663 PMAQI
29th Jul 2025644 PMAQI
29th Jul 2025635 PMAQI
29th Jul 2025606 PMAQI
29th Jul 2025657 PMAQI
29th Jul 2025668 PMAQI
29th Jul 2025669 PMAQI
29th Jul 20257010 PMAQI
29th Jul 20256811 PMAQI
30th Jul 20256312 AMAQI
30th Jul 2025601 AMAQI
30th Jul 2025602 AMAQI
30th Jul 2025623 AMAQI
30th Jul 2025614 AMAQI
32°C28/36°C
30th Jul 2025625 AMAQI
30th Jul 2025616 AMAQI
30th Jul 2025607 AMAQI
30th Jul 2025668 AMAQI
30th Jul 2025689 AMAQI
30th Jul 20256810 AMAQI
30th Jul 20256211 AMAQI
30th Jul 20256012 PMAQI
30th Jul 2025641 PMAQI
30th Jul 2025662 PMAQI
30th Jul 2025653 PMAQI
30th Jul 2025644 PMAQI
30th Jul 2025625 PMAQI
30th Jul 2025636 PMAQI
30th Jul 2025627 PMAQI
30th Jul 2025688 PMAQI
30th Jul 2025689 PMAQI
30th Jul 20256310 PMAQI
30th Jul 20256011 PMAQI
31st Jul 20255912 AMAQI
31st Jul 2025611 AMAQI
31st Jul 2025612 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI
32°C28/37°C
31st Jul 2025615 AMAQI
31st Jul 2025616 AMAQI
31st Jul 2025617 AMAQI
31st Jul 2025618 AMAQI
31st Jul 2025589 AMAQI
31st Jul 20256510 AMAQI
31st Jul 20255911 AMAQI
31st Jul 20255212 PMAQI
31st Jul 2025521 PMAQI
31st Jul 2025562 PMAQI
31st Jul 2025483 PMAQI
31st Jul 2025454 PMAQI
31st Jul 2025445 PMAQI
31st Jul 2025496 PMAQI
31st Jul 2025557 PMAQI
31st Jul 2025568 PMAQI
31st Jul 2025589 PMAQI
31st Jul 20255710 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025561 AMAQI
1st Aug 2025532 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025534 AMAQI
32°C29/36°C
1st Aug 2025545 AMAQI
1st Aug 2025556 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025608 AMAQI
1st Aug 2025559 AMAQI
1st Aug 20255510 AMAQI
1st Aug 20255711 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025451 PMAQI
1st Aug 2025532 PMAQI
1st Aug 2025483 PMAQI
1st Aug 2025434 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025529 PMAQI
1st Aug 20255410 PMAQI
1st Aug 20255211 PMAQI
2nd Aug 20255412 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025554 AMAQI
28°C26/31°C
2nd Aug 2025565 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025427 AMAQI
2nd Aug 2025458 AMAQI
2nd Aug 2025439 AMAQI
2nd Aug 20254710 AMAQI
2nd Aug 20254611 AMAQI
2nd Aug 20254812 PMAQI
2nd Aug 2025481 PMAQI
2nd Aug 2025432 PMAQI
2nd Aug 2025493 PMAQI
2nd Aug 2025584 PMAQI
2nd Aug 2025565 PMAQI
2nd Aug 2025576 PMAQI
2nd Aug 2025527 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255411 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
31°C26/37°C
3rd Aug 2025555 AMAQI
3rd Aug 2025546 AMAQI
3rd Aug 2025557 AMAQI
3rd Aug 2025618 AMAQI
3rd Aug 2025599 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20256511 AMAQI
3rd Aug 20256712 PMAQI
3rd Aug 2025551 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025533 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025515 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025567 PMAQI
3rd Aug 2025588 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255710 PMAQI
3rd Aug 20255611 PMAQI
4th Aug 20255512 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI
32°C28/38°C
4th Aug 2025565 AMAQI
5 AM4th Aug 2025576 AMAQI
4th Aug 2025587 AMAQI
4th Aug 2025558 AMAQI
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 PM
52AQI
14 hours / Day
420 hours / Month
Avg. Lowest Time
5 AM - 6 PM
52AQI
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. 52), while the lowest AQI was between 5 AM to 6 PM (Avg. 52).
Night time
Avg. Highest Time
12 AM - 11 PM
55AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
55AQI
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. 55), while the lowest AQI was between 12 AM to 11 PM (Avg. 55).
2025 Days Vs Air Quality
Bac Ninh Chau Khe, Hanoi, Ha Noi, Vietnam
2025
27%
59
49%
106
18%
38
6%
12
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
59 DaysModerate
106 DaysPoor
38 DaysUnhealthy
12 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 27%
Health Risk Level:
Very high
In 2025, 27% of 216 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Bac Ninh Chau Khe, Hanoi, Ha Noi, 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
152AQI
152AQI
2nd January 2025
180AQI
180AQI
3rd January 2025
152AQI
152AQI
4th January 2025
145AQI
145AQI
5th January 2025
150AQI
150AQI
6th January 2025
154AQI
154AQI
7th January 2025
154AQI
154AQI
8th January 2025
140AQI
140AQI
9th January 2025
149AQI
149AQI
10th January 2025
98AQI
98AQI
11th January 2025
110AQI
110AQI
12th January 2025
118AQI
118AQI
13th January 2025
144AQI
144AQI
14th January 2025
148AQI
148AQI
15th January 2025
150AQI
150AQI
16th January 2025
145AQI
145AQI
17th January 2025
155AQI
155AQI
18th January 2025
163AQI
163AQI
19th January 2025
162AQI
162AQI
20th January 2025
179AQI
179AQI
21st January 2025
162AQI
162AQI
22nd January 2025
163AQI
163AQI
23rd January 2025
136AQI
136AQI
24th January 2025
137AQI
137AQI
25th January 2025
103AQI
103AQI
26th January 2025
75AQI
75AQI
27th January 2025
92AQI
92AQI
28th January 2025
91AQI
91AQI
29th January 2025
125AQI
125AQI
30th January 2025
111AQI
111AQI
31st January 2025
96AQI
96AQI
1st February 2025
83AQI
83AQI
2nd February 2025
72AQI
72AQI
3rd February 2025
56AQI
56AQI
4th February 2025
73AQI
73AQI
5th February 2025
106AQI
106AQI
6th February 2025
103AQI
103AQI
7th February 2025
52AQI
52AQI
8th February 2025
69AQI
69AQI
9th February 2025
87AQI
87AQI
10th February 2025
137AQI
137AQI
11th February 2025
147AQI
147AQI
12th February 2025
166AQI
166AQI
13th February 2025
140AQI
140AQI
14th February 2025
142AQI
142AQI
15th February 2025
146AQI
146AQI
16th February 2025
81AQI
81AQI
17th February 2025
108AQI
108AQI
18th February 2025
72AQI
72AQI
19th February 2025
87AQI
87AQI
20th February 2025
129AQI
129AQI
21st February 2025
109AQI
109AQI
22nd February 2025
127AQI
127AQI
23rd February 2025
67AQI
67AQI
24th February 2025
77AQI
77AQI
25th February 2025
91AQI
91AQI
26th February 2025
78AQI
78AQI
27th February 2025
137AQI
137AQI
28th February 2025
103AQI
103AQI
1st March 2025
106AQI
106AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
86AQI
86AQI
4th March 2025
84AQI
84AQI
5th March 2025
91AQI
91AQI
6th March 2025
64AQI
64AQI
7th March 2025
72AQI
72AQI
8th March 2025
94AQI
94AQI
9th March 2025
129AQI
129AQI
10th March 2025
139AQI
139AQI
11th March 2025
121AQI
121AQI
12th March 2025
95AQI
95AQI
13th March 2025
83AQI
83AQI
14th March 2025
86AQI
86AQI
15th March 2025
80AQI
80AQI
16th March 2025
63AQI
63AQI
17th March 2025
85AQI
85AQI
18th March 2025
76AQI
76AQI
19th March 2025
76AQI
76AQI
20th March 2025
98AQI
98AQI
21st March 2025
121AQI
121AQI
22nd March 2025
120AQI
120AQI
23rd March 2025
119AQI
119AQI
24th March 2025
130AQI
130AQI
25th March 2025
101AQI
101AQI
26th March 2025
75AQI
75AQI
27th March 2025
86AQI
86AQI
28th March 2025
89AQI
89AQI
29th March 2025
67AQI
67AQI
30th March 2025
47AQI
47AQI
31st March 2025
55AQI
55AQI
1st April 2025
72AQI
72AQI
2nd April 2025
95AQI
95AQI
3rd April 2025
83AQI
83AQI
4th April 2025
133AQI
133AQI
5th April 2025
88AQI
88AQI
6th April 2025
97AQI
97AQI
7th April 2025
92AQI
92AQI
8th April 2025
97AQI
97AQI
9th April 2025
88AQI
88AQI
10th April 2025
87AQI
87AQI
11th April 2025
85AQI
85AQI
12th April 2025
87AQI
87AQI
13th April 2025
82AQI
82AQI
14th April 2025
88AQI
88AQI
15th April 2025
94AQI
94AQI
16th April 2025
92AQI
92AQI
17th April 2025
89AQI
89AQI
18th April 2025
93AQI
93AQI
19th April 2025
88AQI
88AQI
20th April 2025
70AQI
70AQI
21st April 2025
56AQI
56AQI
22nd April 2025
64AQI
64AQI
23rd April 2025
53AQI
53AQI
24th April 2025
54AQI
54AQI
25th April 2025
44AQI
44AQI
26th April 2025
49AQI
49AQI
27th April 2025
35AQI
35AQI
28th April 2025
37AQI
37AQI
29th April 2025
61AQI
61AQI
30th April 2025
57AQI
57AQI
1st May 2025
49AQI
49AQI
2nd May 2025
65AQI
65AQI
3rd May 2025
59AQI
59AQI
4th May 2025
69AQI
69AQI
5th May 2025
62AQI
62AQI
6th May 2025
53AQI
53AQI
7th May 2025
50AQI
50AQI
8th May 2025
50AQI
50AQI
9th May 2025
53AQI
53AQI
10th May 2025
53AQI
53AQI
11th May 2025
34AQI
34AQI
12th May 2025
51AQI
51AQI
13th May 2025
46AQI
46AQI
14th May 2025
39AQI
39AQI
15th May 2025
37AQI
37AQI
16th May 2025
38AQI
38AQI
17th May 2025
37AQI
37AQI
18th May 2025
40AQI
40AQI
19th May 2025
39AQI
39AQI
20th May 2025
39AQI
39AQI
21st May 2025
42AQI
42AQI
22nd May 2025
41AQI
41AQI
23rd May 2025
32AQI
32AQI
24th May 2025
35AQI
35AQI
25th May 2025
38AQI
38AQI
26th May 2025
46AQI
46AQI
27th May 2025
56AQI
56AQI
28th May 2025
57AQI
57AQI
29th May 2025
42AQI
42AQI
30th May 2025
42AQI
42AQI
31st May 2025
41AQI
41AQI
1st June 2025
40AQI
40AQI
2nd June 2025
40AQI
40AQI
3rd June 2025
40AQI
40AQI
4th June 2025
41AQI
41AQI
5th June 2025
53AQI
53AQI
6th June 2025
40AQI
40AQI
7th June 2025
38AQI
38AQI
8th June 2025
33AQI
33AQI
9th June 2025
43AQI
43AQI
10th June 2025
41AQI
41AQI
11th June 2025
46AQI
46AQI
12th June 2025
39AQI
39AQI
13th June 2025
33AQI
33AQI
14th June 2025
42AQI
42AQI
15th June 2025
42AQI
42AQI
16th June 2025
57AQI
57AQI
17th June 2025
58AQI
58AQI
18th June 2025
48AQI
48AQI
19th June 2025
54AQI
54AQI
20th June 2025
59AQI
59AQI
21st June 2025
43AQI
43AQI
22nd June 2025
33AQI
33AQI
23rd June 2025
46AQI
46AQI
24th June 2025
50AQI
50AQI
25th June 2025
52AQI
52AQI
26th June 2025
50AQI
50AQI
27th June 2025
50AQI
50AQI
28th June 2025
49AQI
49AQI
29th June 2025
51AQI
51AQI
30th June 2025
52AQI
52AQI
1st July 2025
47AQI
47AQI
2nd July 2025
44AQI
44AQI
3rd July 2025
48AQI
48AQI
4th July 2025
55AQI
55AQI
5th July 2025
59AQI
59AQI
6th July 2025
58AQI
58AQI
7th July 2025
57AQI
57AQI
8th July 2025
56AQI
56AQI
9th July 2025
58AQI
58AQI
10th July 2025
46AQI
46AQI
11th July 2025
46AQI
46AQI
12th July 2025
45AQI
45AQI
13th July 2025
47AQI
47AQI
14th July 2025
62AQI
62AQI
15th July 2025
61AQI
61AQI
16th July 2025
52AQI
52AQI
17th July 2025
51AQI
51AQI
18th July 2025
58AQI
58AQI
19th July 2025
65AQI
65AQI
20th July 2025
54AQI
54AQI
21st July 2025
53AQI
53AQI
22nd July 2025
38AQI
38AQI
23rd July 2025
43AQI
43AQI
24th July 2025
41AQI
41AQI
25th July 2025
51AQI
51AQI
26th July 2025
51AQI
51AQI
27th July 2025
49AQI
49AQI
28th July 2025
59AQI
59AQI
29th July 2025
66AQI
66AQI
30th July 2025
63AQI
63AQI
31st July 2025
57AQI
57AQI
1st August 2025
53AQI
53AQI
2nd August 2025
53AQI
53AQI
3rd August 2025
56AQI
56AQI
137AQI
102AQI
91AQI
77AQI
46AQI
45AQI
53AQI
54AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202578AQI
5
15
11
14
13
1
1
21
9
4
25
1
21
10
22
8
11
20
3
59
106
38
12
Highest AQI recorded in
January137AQI
Lowest AQI recorded in
June45AQI
202473AQI
17
3
3
14
2
1
5
17
6
1
15
15
5
9
30
18
13
29
8
13
5
3
7
14
7
3
27
3
14
15
2
92
169
53
9
1
Highest AQI recorded in
December114AQI
Lowest AQI recorded in
January31AQI
202352AQI
17
14
2
1
5
16
10
36
16
12
1
Highest AQI recorded in
December85AQI
Lowest AQI recorded in
September7AQI
202246AQI
10
2
2
4
3
2
4
5
3
16
3
10
10
1
2
27
30
18
90
44
14
4
Highest AQI recorded in
April111AQI
Lowest AQI recorded in
August13AQI
202164AQI
4
6
5
12
1
23
4
1
18
7
1
2
10
10
2
9
14
1
1
13
11
2
1
77
52
12
16
1
Highest AQI recorded in
January127AQI
Lowest AQI recorded in
March35AQI
202033AQI
3
29
1
28
2
26
1
1
24
2
1
24
6
6
13
6
140
23
9
1
Highest AQI recorded in
December77AQI
Lowest AQI recorded in
August13AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
78AQILeast Polluted Year Recorded
2020(Avg.)
33AQIBac Ninh Chau Khe's annual 2025 AQI (78) shows an average percentage change of 57.2% (worsened AQI) compared to previous years: 2020 (33), 2021 (64), 2022 (46), 2023 (52), 2024 (73).
