Bac Ninh gan KCN Yen Phong, 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 gan KCN Yen Phong, Hanoi, Ha Noi, Vietnam
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
16th Aug 2023
184AQILowest AQI recorded on
20th Aug 2023
13AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 52 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Bac Ninh gan KCN Yen Phong, Hanoi, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM2nd Aug 2025
6 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
4PM2nd Aug
58AQI
Avg. Lowest Time
7AM2nd Aug
41AQI
Night time
Avg. Highest Time
9PM2nd Aug
59AQI
Avg. Lowest Time
7PM2nd Aug
52AQI
In the last 24 hours,
Bac Ninh gan KCN Yen Phong's AQI reached its highest point of 59 at 9 PM during the Night, while the lowest point, 41, was recorded at 7 AM during the Day between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Bac Ninh gan KCN Yen Phong, Hanoi, Ha Noi, Vietnam
JulAug
04th - 05th05th - 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
Day
Night
4th Jul 2025545 AMAQI
4th Jul 2025546 AMAQI
4th Jul 2025707 AMAQI
4th Jul 2025768 AMAQI
4th Jul 2025709 AMAQI
4th Jul 20257110 AMAQI
4th Jul 20256411 AMAQI
4th Jul 20256012 PMAQI
4th Jul 2025581 PMAQI
4th Jul 2025592 PMAQI
4th Jul 2025623 PMAQI
4th Jul 2025584 PMAQI
4th Jul 2025485 PMAQI
4th Jul 2025476 PMAQI
4th Jul 2025527 PMAQI
4th Jul 2025538 PMAQI
4th Jul 2025519 PMAQI
4th Jul 20255210 PMAQI
4th Jul 20255411 PMAQI
5th Jul 20255412 AMAQI
5th Jul 2025571 AMAQI
5th Jul 2025572 AMAQI
5th Jul 2025583 AMAQI
5th Jul 2025584 AMAQI
29°C25/33°C
5th Jul 2025585 AMAQI
5th Jul 2025596 AMAQI
5th Jul 2025617 AMAQI
5th Jul 2025618 AMAQI
5th Jul 2025649 AMAQI
5th Jul 20256510 AMAQI
5th Jul 20256011 AMAQI
5th Jul 20255912 PMAQI
5th Jul 2025581 PMAQI
5th Jul 2025592 PMAQI
5th Jul 2025623 PMAQI
5th Jul 2025624 PMAQI
5th Jul 2025665 PMAQI
5th Jul 2025676 PMAQI
5th Jul 2025617 PMAQI
5th Jul 2025638 PMAQI
5th Jul 2025629 PMAQI
5th Jul 20256410 PMAQI
5th Jul 20256011 PMAQI
6th Jul 20255812 AMAQI
6th Jul 2025571 AMAQI
6th Jul 2025572 AMAQI
6th Jul 2025583 AMAQI
6th Jul 2025584 AMAQI
30°C26/35°C
6th Jul 2025585 AMAQI
6th Jul 2025586 AMAQI
6th Jul 2025587 AMAQI
6th Jul 2025598 AMAQI
6th Jul 2025609 AMAQI
6th Jul 20256010 AMAQI
6th Jul 20255811 AMAQI
6th Jul 20255512 PMAQI
6th Jul 2025601 PMAQI
6th Jul 2025572 PMAQI
6th Jul 2025603 PMAQI
6th Jul 2025604 PMAQI
6th Jul 2025625 PMAQI
6th Jul 2025636 PMAQI
6th Jul 2025597 PMAQI
6th Jul 2025598 PMAQI
6th Jul 2025589 PMAQI
6th Jul 20255910 PMAQI
6th Jul 20255911 PMAQI
7th Jul 20255712 AMAQI
7th Jul 2025571 AMAQI
7th Jul 2025582 AMAQI
7th Jul 2025563 AMAQI
7th Jul 2025564 AMAQI
29°C27/33°C
7th Jul 2025565 AMAQI
7th Jul 2025566 AMAQI
7th Jul 2025587 AMAQI
7th Jul 2025628 AMAQI
7th Jul 2025709 AMAQI
7th Jul 20257110 AMAQI
7th Jul 20257211 AMAQI
7th Jul 20256212 PMAQI
7th Jul 2025601 PMAQI
7th Jul 2025572 PMAQI
7th Jul 2025583 PMAQI
7th Jul 2025564 PMAQI
7th Jul 2025565 PMAQI
7th Jul 2025556 PMAQI
7th Jul 2025577 PMAQI
7th Jul 2025578 PMAQI
7th Jul 2025589 PMAQI
7th Jul 20256010 PMAQI
7th Jul 20256011 PMAQI
8th Jul 20255912 AMAQI
8th Jul 2025591 AMAQI
8th Jul 2025572 AMAQI
8th Jul 2025603 AMAQI
8th Jul 2025604 AMAQI
30°C26/35°C
8th Jul 2025605 AMAQI
8th Jul 2025606 AMAQI
8th Jul 2025577 AMAQI
8th Jul 2025548 AMAQI
8th Jul 2025499 AMAQI
8th Jul 20254810 AMAQI
8th Jul 20258911 AMAQI
8th Jul 20255812 PMAQI
8th Jul 2025601 PMAQI
8th Jul 2025542 PMAQI
8th Jul 2025563 PMAQI
8th Jul 2025524 PMAQI
8th Jul 2025575 PMAQI
8th Jul 2025666 PMAQI
8th Jul 2025657 PMAQI
8th Jul 2025568 PMAQI
8th Jul 2025559 PMAQI
8th Jul 20255710 PMAQI
8th Jul 20256111 PMAQI
9th Jul 20258412 AMAQI
9th Jul 2025581 AMAQI
9th Jul 2025582 AMAQI
9th Jul 2025583 AMAQI
9th Jul 2025574 AMAQI
32°C27/37°C
9th Jul 2025585 AMAQI
9th Jul 2025576 AMAQI
9th Jul 2025607 AMAQI
9th Jul 2025588 AMAQI
9th Jul 2025599 AMAQI
9th Jul 20255210 AMAQI
9th Jul 20255711 AMAQI
9th Jul 20256212 PMAQI
9th Jul 2025601 PMAQI
9th Jul 2025582 PMAQI
9th Jul 2025593 PMAQI
9th Jul 2025524 PMAQI
9th Jul 2025515 PMAQI
9th Jul 2025546 PMAQI
9th Jul 2025607 PMAQI
9th Jul 2025708 PMAQI
9th Jul 2025739 PMAQI
9th Jul 20257110 PMAQI
9th Jul 20256411 PMAQI
10th Jul 20256212 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025602 AMAQI
10th Jul 2025603 AMAQI
10th Jul 2025614 AMAQI
32°C28/37°C
10th Jul 2025605 AMAQI
10th Jul 2025606 AMAQI
10th Jul 2025437 AMAQI
10th Jul 2025448 AMAQI
10th Jul 2025319 AMAQI
10th Jul 20254010 AMAQI
10th Jul 20254411 AMAQI
10th Jul 20254412 PMAQI
10th Jul 2025441 PMAQI
10th Jul 2025452 PMAQI
10th Jul 2025303 PMAQI
10th Jul 2025514 PMAQI
10th Jul 2025425 PMAQI
10th Jul 2025506 PMAQI
10th Jul 2025567 PMAQI
10th Jul 2025548 PMAQI
10th Jul 2025589 PMAQI
10th Jul 20255810 PMAQI
10th Jul 20255911 PMAQI
11th Jul 20256012 AMAQI
11th Jul 2025581 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025574 AMAQI
30°C26/35°C
11th Jul 2025565 AMAQI
11th Jul 2025576 AMAQI
11th Jul 2025507 AMAQI
11th Jul 2025488 AMAQI
11th Jul 2025409 AMAQI
11th Jul 20254710 AMAQI
11th Jul 20254711 AMAQI
11th Jul 20254912 PMAQI
11th Jul 2025461 PMAQI
11th Jul 2025492 PMAQI
11th Jul 2025423 PMAQI
11th Jul 2025464 PMAQI
11th Jul 2025445 PMAQI
11th Jul 2025416 PMAQI
11th Jul 2025507 PMAQI
11th Jul 2025518 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255511 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025561 AMAQI
12th Jul 2025572 AMAQI
12th Jul 2025553 AMAQI
12th Jul 2025444 AMAQI
29°C26/33°C
12th Jul 2025565 AMAQI
12th Jul 2025566 AMAQI
12th Jul 2025517 AMAQI
12th Jul 2025488 AMAQI
12th Jul 2025549 AMAQI
12th Jul 20254610 AMAQI
12th Jul 20254611 AMAQI
12th Jul 20254712 PMAQI
12th Jul 2025511 PMAQI
12th Jul 2025502 PMAQI
12th Jul 2025473 PMAQI
12th Jul 2025414 PMAQI
12th Jul 2025455 PMAQI
12th Jul 2025426 PMAQI
12th Jul 2025487 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025499 PMAQI
12th Jul 20254610 PMAQI
12th Jul 20255011 PMAQI
13th Jul 20254912 AMAQI
13th Jul 2025551 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025573 AMAQI
13th Jul 2025564 AMAQI
29°C26/34°C
13th Jul 2025575 AMAQI
13th Jul 2025556 AMAQI
13th Jul 2025527 AMAQI
13th Jul 2025468 AMAQI
13th Jul 2025499 AMAQI
13th Jul 20254310 AMAQI
13th Jul 20254311 AMAQI
13th Jul 20255012 PMAQI
13th Jul 2025541 PMAQI
13th Jul 2025442 PMAQI
13th Jul 2025393 PMAQI
13th Jul 2025384 PMAQI
13th Jul 2025585 PMAQI
13th Jul 2025436 PMAQI
13th Jul 2025557 PMAQI
13th Jul 2025548 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20256510 PMAQI
13th Jul 20256311 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025581 AMAQI
14th Jul 2025552 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025554 AMAQI
29°C26/34°C
14th Jul 2025545 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025657 AMAQI
14th Jul 2025718 AMAQI
14th Jul 2025859 AMAQI
14th Jul 20256810 AMAQI
14th Jul 20256811 AMAQI
14th Jul 20258412 PMAQI
14th Jul 2025641 PMAQI
14th Jul 2025542 PMAQI
14th Jul 2025763 PMAQI
14th Jul 2025754 PMAQI
14th Jul 2025775 PMAQI
14th Jul 2025746 PMAQI
14th Jul 2025597 PMAQI
14th Jul 2025618 PMAQI
14th Jul 2025609 PMAQI
14th Jul 20255610 PMAQI
14th Jul 20255511 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025591 AMAQI
15th Jul 2025612 AMAQI
15th Jul 2025623 AMAQI
15th Jul 2025624 AMAQI
31°C27/35°C
15th Jul 2025625 AMAQI
15th Jul 2025616 AMAQI
15th Jul 2025617 AMAQI
15th Jul 2025638 AMAQI
15th Jul 2025669 AMAQI
15th Jul 20256910 AMAQI
15th Jul 20258011 AMAQI
15th Jul 20257812 PMAQI
15th Jul 2025741 PMAQI
15th Jul 2025772 PMAQI
15th Jul 2025753 PMAQI
15th Jul 2025694 PMAQI
15th Jul 2025715 PMAQI
15th Jul 2025686 PMAQI
15th Jul 2025607 PMAQI
15th Jul 2025668 PMAQI
15th Jul 2025609 PMAQI
15th Jul 20255910 PMAQI
15th Jul 20255411 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025741 AMAQI
16th Jul 2025602 AMAQI
16th Jul 2025623 AMAQI
16th Jul 2025624 AMAQI
30°C28/34°C
16th Jul 2025625 AMAQI
16th Jul 2025626 AMAQI
16th Jul 2025567 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025599 AMAQI
16th Jul 20255010 AMAQI
16th Jul 20254011 AMAQI
16th Jul 20255012 PMAQI
16th Jul 2025541 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025483 PMAQI
16th Jul 2025484 PMAQI
16th Jul 2025515 PMAQI
16th Jul 2025556 PMAQI
16th Jul 2025597 PMAQI
16th Jul 2025388 PMAQI
16th Jul 2025559 PMAQI
16th Jul 20255410 PMAQI
16th Jul 20255411 PMAQI
17th Jul 20255612 AMAQI
17th Jul 2025601 AMAQI
17th Jul 2025592 AMAQI
17th Jul 2025603 AMAQI
17th Jul 2025604 AMAQI
31°C27/35°C
17th Jul 2025605 AMAQI
17th Jul 2025606 AMAQI
17th Jul 2025527 AMAQI
17th Jul 2025538 AMAQI
17th Jul 2025549 AMAQI
17th Jul 20255910 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20255412 PMAQI
17th Jul 2025561 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025423 PMAQI
17th Jul 2025404 PMAQI
17th Jul 2025415 PMAQI
17th Jul 2025516 PMAQI
17th Jul 2025547 PMAQI
17th Jul 2025568 PMAQI
17th Jul 2025569 PMAQI
17th Jul 20255810 PMAQI
17th Jul 20255611 PMAQI
18th Jul 20255112 AMAQI
18th Jul 2025561 AMAQI
18th Jul 2025572 AMAQI
18th Jul 2025553 AMAQI
18th Jul 2025564 AMAQI
31°C27/37°C
18th Jul 2025565 AMAQI
18th Jul 2025556 AMAQI
18th Jul 2025587 AMAQI
18th Jul 2025628 AMAQI
18th Jul 2025639 AMAQI
18th Jul 20256410 AMAQI
18th Jul 20256411 AMAQI
18th Jul 20256012 PMAQI
18th Jul 2025591 PMAQI
18th Jul 2025602 PMAQI
18th Jul 2025613 PMAQI
18th Jul 2025624 PMAQI
18th Jul 2025605 PMAQI
18th Jul 2025596 PMAQI
18th Jul 2025597 PMAQI
18th Jul 2025588 PMAQI
18th Jul 2025589 PMAQI
18th Jul 20257010 PMAQI
18th Jul 20257211 PMAQI
19th Jul 20256912 AMAQI
19th Jul 2025571 AMAQI
19th Jul 2025582 AMAQI
19th Jul 2025593 AMAQI
19th Jul 2025604 AMAQI
32°C28/37°C
19th Jul 2025595 AMAQI
19th Jul 2025616 AMAQI
19th Jul 2025747 AMAQI
19th Jul 2025858 AMAQI
19th Jul 2025869 AMAQI
19th Jul 20259710 AMAQI
19th Jul 20259111 AMAQI
19th Jul 20258812 PMAQI
19th Jul 2025921 PMAQI
19th Jul 2025802 PMAQI
19th Jul 2025993 PMAQI
19th Jul 2025624 PMAQI
19th Jul 2025605 PMAQI
19th Jul 2025596 PMAQI
19th Jul 2025657 PMAQI
19th Jul 2025718 PMAQI
19th Jul 2025669 PMAQI
19th Jul 20256110 PMAQI
19th Jul 20255711 PMAQI
20th Jul 20255912 AMAQI
20th Jul 2025611 AMAQI
20th Jul 2025612 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025624 AMAQI
31°C25/37°C
20th Jul 2025635 AMAQI
20th Jul 2025636 AMAQI
20th Jul 2025557 AMAQI
20th Jul 2025598 AMAQI
20th Jul 2025569 AMAQI
20th Jul 20255610 AMAQI
20th Jul 20255411 AMAQI
20th Jul 20255312 PMAQI
20th Jul 2025521 PMAQI
20th Jul 2025532 PMAQI
20th Jul 2025523 PMAQI
20th Jul 2025524 PMAQI
20th Jul 2025525 PMAQI
20th Jul 2025446 PMAQI
20th Jul 2025537 PMAQI
20th Jul 2025558 PMAQI
20th Jul 2025519 PMAQI
20th Jul 20255210 PMAQI
20th Jul 20255011 PMAQI
21st Jul 20255412 AMAQI
21st Jul 2025601 AMAQI
21st Jul 2025602 AMAQI
21st Jul 2025583 AMAQI
21st Jul 2025594 AMAQI
28°C25/31°C
21st Jul 2025595 AMAQI
21st Jul 2025596 AMAQI
21st Jul 2025577 AMAQI
21st Jul 2025558 AMAQI
21st Jul 2025539 AMAQI
21st Jul 20255210 AMAQI
21st Jul 20255511 AMAQI
21st Jul 20255012 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025562 PMAQI
21st Jul 2025503 PMAQI
21st Jul 2025504 PMAQI
21st Jul 2025585 PMAQI
21st Jul 2025546 PMAQI
21st Jul 2025547 PMAQI
21st Jul 2025548 PMAQI
21st Jul 2025489 PMAQI
21st Jul 20255210 PMAQI
21st Jul 20254911 PMAQI
22nd Jul 20255212 AMAQI
22nd Jul 2025571 AMAQI
22nd Jul 2025562 AMAQI
22nd Jul 2025563 AMAQI
22nd Jul 2025554 AMAQI
26°C25/27°C
22nd Jul 2025565 AMAQI
22nd Jul 2025566 AMAQI
22nd Jul 2025307 AMAQI
22nd Jul 2025268 AMAQI
22nd Jul 2025399 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20252312 PMAQI
22nd Jul 2025221 PMAQI
22nd Jul 2025262 PMAQI
22nd Jul 2025233 PMAQI
22nd Jul 2025234 PMAQI
22nd Jul 2025255 PMAQI
22nd Jul 2025316 PMAQI
22nd Jul 2025457 PMAQI
22nd Jul 2025378 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254710 PMAQI
22nd Jul 20254711 PMAQI
23rd Jul 20254612 AMAQI
23rd Jul 2025551 AMAQI
23rd Jul 2025542 AMAQI
23rd Jul 2025533 AMAQI
23rd Jul 2025534 AMAQI
27°C25/29°C
23rd Jul 2025535 AMAQI
23rd Jul 2025536 AMAQI
23rd Jul 2025527 AMAQI
23rd Jul 2025758 AMAQI
23rd Jul 2025549 AMAQI
23rd Jul 20255110 AMAQI
23rd Jul 20254011 AMAQI
23rd Jul 20253912 PMAQI
23rd Jul 2025311 PMAQI
23rd Jul 2025262 PMAQI
23rd Jul 2025243 PMAQI
23rd Jul 2025264 PMAQI
23rd Jul 2025285 PMAQI
23rd Jul 2025366 PMAQI
23rd Jul 2025307 PMAQI
23rd Jul 2025508 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20254910 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20254712 AMAQI
24th Jul 2025531 AMAQI
24th Jul 2025532 AMAQI
24th Jul 2025523 AMAQI
24th Jul 2025524 AMAQI
28°C26/31°C
24th Jul 2025535 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025517 AMAQI
24th Jul 2025478 AMAQI
24th Jul 2025389 AMAQI
24th Jul 20253610 AMAQI
24th Jul 20252911 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025261 PMAQI
24th Jul 2025272 PMAQI
24th Jul 2025273 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025265 PMAQI
24th Jul 2025336 PMAQI
24th Jul 2025447 PMAQI
24th Jul 2025488 PMAQI
24th Jul 2025479 PMAQI
24th Jul 20254910 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20255012 AMAQI
25th Jul 2025521 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025513 AMAQI
25th Jul 2025514 AMAQI
28°C26/32°C
25th Jul 2025515 AMAQI
25th Jul 2025516 AMAQI
25th Jul 2025597 AMAQI
25th Jul 2025668 AMAQI
25th Jul 2025719 AMAQI
25th Jul 20257910 AMAQI
25th Jul 20256711 AMAQI
25th Jul 20256512 PMAQI
25th Jul 2025571 PMAQI
25th Jul 2025472 PMAQI
25th Jul 2025483 PMAQI
25th Jul 2025534 PMAQI
25th Jul 2025495 PMAQI
25th Jul 2025446 PMAQI
25th Jul 2025557 PMAQI
25th Jul 2025558 PMAQI
25th Jul 2025549 PMAQI
25th Jul 20255410 PMAQI
25th Jul 20255311 PMAQI
26th Jul 20255512 AMAQI
26th Jul 2025541 AMAQI
26th Jul 2025532 AMAQI
26th Jul 2025543 AMAQI
26th Jul 2025544 AMAQI
29°C25/34°C
26th Jul 2025545 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025497 AMAQI
26th Jul 2025618 AMAQI
26th Jul 2025659 AMAQI
26th Jul 20256210 AMAQI
26th Jul 20256011 AMAQI
26th Jul 20255712 PMAQI
26th Jul 2025561 PMAQI
26th Jul 2025562 PMAQI
26th Jul 2025463 PMAQI
26th Jul 2025424 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025586 PMAQI
26th Jul 2025487 PMAQI
26th Jul 2025598 PMAQI
26th Jul 2025529 PMAQI
26th Jul 20255810 PMAQI
26th Jul 20252411 PMAQI
27th Jul 20254412 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025552 AMAQI
27th Jul 2025553 AMAQI
27th Jul 2025554 AMAQI
29°C26/35°C
27th Jul 2025565 AMAQI
27th Jul 2025566 AMAQI
27th Jul 2025567 AMAQI
27th Jul 2025568 AMAQI
27th Jul 2025579 AMAQI
27th Jul 20255910 AMAQI
27th Jul 20254611 AMAQI
27th Jul 20255212 PMAQI
27th Jul 2025501 PMAQI
27th Jul 2025422 PMAQI
27th Jul 2025423 PMAQI
27th Jul 2025364 PMAQI
27th Jul 2025375 PMAQI
27th Jul 2025526 PMAQI
27th Jul 2025527 PMAQI
27th Jul 2025528 PMAQI
27th Jul 2025539 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255711 PMAQI
28th Jul 20255612 AMAQI
28th Jul 2025551 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025544 AMAQI
30°C26/36°C
28th Jul 2025525 AMAQI
28th Jul 2025546 AMAQI
28th Jul 2025617 AMAQI
28th Jul 2025708 AMAQI
28th Jul 2025729 AMAQI
28th Jul 20257010 AMAQI
28th Jul 20256611 AMAQI
28th Jul 20256612 PMAQI
28th Jul 2025651 PMAQI
28th Jul 2025662 PMAQI
28th Jul 2025673 PMAQI
28th Jul 2025634 PMAQI
28th Jul 2025585 PMAQI
28th Jul 2025576 PMAQI
28th Jul 2025517 PMAQI
28th Jul 2025628 PMAQI
28th Jul 2025649 PMAQI
28th Jul 20256510 PMAQI
28th Jul 20256511 PMAQI
29th Jul 20256012 AMAQI
29th Jul 2025561 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025583 AMAQI
29th Jul 2025584 AMAQI
31°C27/35°C
29th Jul 2025585 AMAQI
29th Jul 2025586 AMAQI
29th Jul 2025747 AMAQI
29th Jul 2025778 AMAQI
29th Jul 2025749 AMAQI
29th Jul 20258610 AMAQI
29th Jul 20257911 AMAQI
29th Jul 20258212 PMAQI
29th Jul 2025861 PMAQI
29th Jul 2025802 PMAQI
29th Jul 2025663 PMAQI
29th Jul 2025664 PMAQI
29th Jul 2025645 PMAQI
29th Jul 2025626 PMAQI
29th Jul 2025667 PMAQI
29th Jul 2025668 PMAQI
29th Jul 2025689 PMAQI
29th Jul 20257010 PMAQI
29th Jul 20256811 PMAQI
30th Jul 20256412 AMAQI
30th Jul 2025601 AMAQI
30th Jul 2025622 AMAQI
30th Jul 2025633 AMAQI
30th Jul 2025624 AMAQI
32°C28/36°C
30th Jul 2025625 AMAQI
30th Jul 2025636 AMAQI
30th Jul 2025617 AMAQI
30th Jul 2025678 AMAQI
30th Jul 2025709 AMAQI
30th Jul 20257810 AMAQI
30th Jul 20256811 AMAQI
30th Jul 20256512 PMAQI
30th Jul 2025691 PMAQI
30th Jul 2025722 PMAQI
30th Jul 2025703 PMAQI
30th Jul 2025694 PMAQI
30th Jul 2025665 PMAQI
30th Jul 2025646 PMAQI
30th Jul 2025647 PMAQI
30th Jul 2025708 PMAQI
30th Jul 2025689 PMAQI
30th Jul 20256310 PMAQI
30th Jul 20256111 PMAQI
31st Jul 20256212 AMAQI
31st Jul 2025621 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 2025569 AMAQI
31st Jul 20256810 AMAQI
31st Jul 20256411 AMAQI
31st Jul 20255612 PMAQI
31st Jul 2025551 PMAQI
31st Jul 2025572 PMAQI
31st Jul 2025503 PMAQI
31st Jul 2025464 PMAQI
31st Jul 2025495 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025557 PMAQI
31st Jul 2025558 PMAQI
31st Jul 2025589 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025561 AMAQI
1st Aug 2025532 AMAQI
1st Aug 2025533 AMAQI
1st Aug 2025534 AMAQI
32°C29/36°C
1st Aug 2025545 AMAQI
1st Aug 2025546 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025559 AMAQI
1st Aug 20255510 AMAQI
1st Aug 20255711 AMAQI
1st Aug 20255012 PMAQI
1st Aug 2025451 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025483 PMAQI
1st Aug 2025444 PMAQI
1st Aug 2025555 PMAQI
1st Aug 2025506 PMAQI
1st Aug 2025517 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025519 PMAQI
1st Aug 20255410 PMAQI
1st Aug 20255111 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 2025417 AMAQI
2nd Aug 2025458 AMAQI
2nd Aug 2025429 AMAQI
2nd Aug 20254910 AMAQI
2nd Aug 20254611 AMAQI
2nd Aug 20254812 PMAQI
2nd Aug 2025491 PMAQI
2nd Aug 2025442 PMAQI
2nd Aug 2025503 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 2025551 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
31°C26/37°C
3rd Aug 2025555 AMAQI
5 AM3rd Aug 2025546 AMAQI
3rd Aug 2025557 AMAQI
3rd Aug 2025618 AMAQI
3rd Aug 2025599 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20256511 AMAQI
11 AM3rd Aug 20256712 PMAQI
3rd Aug 2025551 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025523 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025525 PMAQI
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
8 AM - 6 PM
55AQI
11 hours / Day
330 hours / Month
Avg. Lowest Time
5 AM - 6 PM
56AQI
14 hours / Day
420 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 6 PM (Avg. 55), while the lowest AQI was between 5 AM to 6 PM (Avg. 56).
Night time
Avg. Highest Time
12 AM - 11 PM
56AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
56AQI
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. 56), while the lowest AQI was between 12 AM to 11 PM (Avg. 56).
2025 Days Vs Air Quality
Bac Ninh gan KCN Yen Phong, Hanoi, Ha Noi, Vietnam
2025
21%
45
56%
119
19%
40
5%
10
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
45 DaysModerate
119 DaysPoor
40 DaysUnhealthy
10 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 21%
Health Risk Level:
Very high
In 2025, 21% of 215 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 gan KCN Yen Phong, 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
148AQI
148AQI
2nd January 2025
160AQI
160AQI
3rd January 2025
145AQI
145AQI
4th January 2025
146AQI
146AQI
5th January 2025
148AQI
148AQI
6th January 2025
155AQI
155AQI
7th January 2025
153AQI
153AQI
8th January 2025
140AQI
140AQI
9th January 2025
150AQI
150AQI
10th January 2025
97AQI
97AQI
11th January 2025
110AQI
110AQI
12th January 2025
117AQI
117AQI
13th January 2025
143AQI
143AQI
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
161AQI
161AQI
20th January 2025
179AQI
179AQI
21st January 2025
161AQI
161AQI
22nd January 2025
162AQI
162AQI
23rd January 2025
135AQI
135AQI
24th January 2025
135AQI
135AQI
25th January 2025
105AQI
105AQI
26th January 2025
73AQI
73AQI
27th January 2025
92AQI
92AQI
28th January 2025
90AQI
90AQI
29th January 2025
124AQI
124AQI
30th January 2025
110AQI
110AQI
31st January 2025
96AQI
96AQI
1st February 2025
83AQI
83AQI
2nd February 2025
71AQI
71AQI
3rd February 2025
56AQI
56AQI
4th February 2025
72AQI
72AQI
5th February 2025
104AQI
104AQI
6th February 2025
102AQI
102AQI
7th February 2025
52AQI
52AQI
8th February 2025
66AQI
66AQI
9th February 2025
85AQI
85AQI
10th February 2025
137AQI
137AQI
11th February 2025
146AQI
146AQI
12th February 2025
165AQI
165AQI
13th February 2025
140AQI
140AQI
14th February 2025
141AQI
141AQI
15th February 2025
147AQI
147AQI
16th February 2025
78AQI
78AQI
17th February 2025
108AQI
108AQI
18th February 2025
70AQI
70AQI
19th February 2025
88AQI
88AQI
20th February 2025
128AQI
128AQI
21st February 2025
105AQI
105AQI
22nd February 2025
126AQI
126AQI
23rd February 2025
65AQI
65AQI
24th February 2025
74AQI
74AQI
25th February 2025
90AQI
90AQI
26th February 2025
77AQI
77AQI
27th February 2025
136AQI
136AQI
28th February 2025
103AQI
103AQI
1st March 2025
105AQI
105AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
86AQI
86AQI
4th March 2025
84AQI
84AQI
5th March 2025
91AQI
91AQI
6th March 2025
62AQI
62AQI
7th March 2025
71AQI
71AQI
8th March 2025
90AQI
90AQI
9th March 2025
127AQI
127AQI
10th March 2025
138AQI
138AQI
11th March 2025
121AQI
121AQI
12th March 2025
95AQI
95AQI
13th March 2025
82AQI
82AQI
14th March 2025
84AQI
84AQI
15th March 2025
80AQI
80AQI
16th March 2025
60AQI
60AQI
17th March 2025
83AQI
83AQI
18th March 2025
76AQI
76AQI
19th March 2025
77AQI
77AQI
20th March 2025
95AQI
95AQI
21st March 2025
121AQI
121AQI
22nd March 2025
117AQI
117AQI
23rd March 2025
116AQI
116AQI
24th March 2025
128AQI
128AQI
25th March 2025
106AQI
106AQI
26th March 2025
81AQI
81AQI
27th March 2025
88AQI
88AQI
28th March 2025
91AQI
91AQI
29th March 2025
68AQI
68AQI
30th March 2025
50AQI
50AQI
31st March 2025
57AQI
57AQI
1st April 2025
74AQI
74AQI
2nd April 2025
97AQI
97AQI
3rd April 2025
86AQI
86AQI
4th April 2025
135AQI
135AQI
5th April 2025
91AQI
91AQI
6th April 2025
100AQI
100AQI
7th April 2025
95AQI
95AQI
8th April 2025
99AQI
99AQI
9th April 2025
88AQI
88AQI
10th April 2025
88AQI
88AQI
11th April 2025
87AQI
87AQI
12th April 2025
90AQI
90AQI
13th April 2025
85AQI
85AQI
14th April 2025
90AQI
90AQI
15th April 2025
97AQI
97AQI
16th April 2025
96AQI
96AQI
17th April 2025
92AQI
92AQI
18th April 2025
96AQI
96AQI
19th April 2025
89AQI
89AQI
20th April 2025
74AQI
74AQI
21st April 2025
64AQI
64AQI
22nd April 2025
70AQI
70AQI
23rd April 2025
64AQI
64AQI
24th April 2025
62AQI
62AQI
25th April 2025
49AQI
49AQI
26th April 2025
60AQI
60AQI
27th April 2025
48AQI
48AQI
28th April 2025
41AQI
41AQI
29th April 2025
63AQI
63AQI
30th April 2025
62AQI
62AQI
1st May 2025
50AQI
50AQI
2nd May 2025
68AQI
68AQI
3rd May 2025
62AQI
62AQI
4th May 2025
71AQI
71AQI
5th May 2025
64AQI
64AQI
6th May 2025
57AQI
57AQI
7th May 2025
51AQI
51AQI
8th May 2025
54AQI
54AQI
9th May 2025
57AQI
57AQI
10th May 2025
57AQI
57AQI
11th May 2025
35AQI
35AQI
12th May 2025
55AQI
55AQI
13th May 2025
53AQI
53AQI
14th May 2025
50AQI
50AQI
15th May 2025
46AQI
46AQI
16th May 2025
47AQI
47AQI
17th May 2025
40AQI
40AQI
18th May 2025
41AQI
41AQI
19th May 2025
46AQI
46AQI
20th May 2025
46AQI
46AQI
21st May 2025
47AQI
47AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
36AQI
36AQI
24th May 2025
38AQI
38AQI
25th May 2025
39AQI
39AQI
26th May 2025
49AQI
49AQI
27th May 2025
60AQI
60AQI
28th May 2025
64AQI
64AQI
29th May 2025
45AQI
45AQI
30th May 2025
47AQI
47AQI
31st May 2025
46AQI
46AQI
1st June 2025
42AQI
42AQI
2nd June 2025
42AQI
42AQI
3rd June 2025
43AQI
43AQI
4th June 2025
44AQI
44AQI
5th June 2025
56AQI
56AQI
6th June 2025
46AQI
46AQI
7th June 2025
45AQI
45AQI
8th June 2025
37AQI
37AQI
9th June 2025
48AQI
48AQI
10th June 2025
44AQI
44AQI
11th June 2025
50AQI
50AQI
12th June 2025
46AQI
46AQI
13th June 2025
36AQI
36AQI
14th June 2025
42AQI
42AQI
15th June 2025
50AQI
50AQI
16th June 2025
59AQI
59AQI
17th June 2025
59AQI
59AQI
18th June 2025
50AQI
50AQI
19th June 2025
56AQI
56AQI
20th June 2025
63AQI
63AQI
21st June 2025
48AQI
48AQI
22nd June 2025
44AQI
44AQI
23rd June 2025
51AQI
51AQI
24th June 2025
53AQI
53AQI
25th June 2025
54AQI
54AQI
26th June 2025
52AQI
52AQI
27th June 2025
56AQI
56AQI
28th June 2025
53AQI
53AQI
29th June 2025
54AQI
54AQI
30th June 2025
53AQI
53AQI
1st July 2025
43AQI
43AQI
2nd July 2025
45AQI
45AQI
3rd July 2025
55AQI
55AQI
4th July 2025
56AQI
56AQI
5th July 2025
61AQI
61AQI
6th July 2025
59AQI
59AQI
7th July 2025
59AQI
59AQI
8th July 2025
59AQI
59AQI
9th July 2025
61AQI
61AQI
10th July 2025
52AQI
52AQI
11th July 2025
51AQI
51AQI
12th July 2025
49AQI
49AQI
13th July 2025
53AQI
53AQI
14th July 2025
63AQI
63AQI
15th July 2025
65AQI
65AQI
16th July 2025
56AQI
56AQI
17th July 2025
54AQI
54AQI
18th July 2025
60AQI
60AQI
19th July 2025
69AQI
69AQI
20th July 2025
56AQI
56AQI
21st July 2025
55AQI
55AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
45AQI
45AQI
24th July 2025
42AQI
42AQI
25th July 2025
55AQI
55AQI
26th July 2025
53AQI
53AQI
27th July 2025
52AQI
52AQI
28th July 2025
60AQI
60AQI
29th July 2025
67AQI
67AQI
30th July 2025
65AQI
65AQI
31st July 2025
58AQI
58AQI
1st August 2025
53AQI
53AQI
2nd August 2025
52AQI
52AQI
135AQI
101AQI
91AQI
81AQI
50AQI
49AQI
55AQI
53AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202580AQI
5
17
9
14
13
1
1
21
9
3
26
1
18
13
17
13
6
25
2
45
119
40
10
Highest AQI recorded in
January135AQI
Lowest AQI recorded in
June49AQI
202457AQI
16
3
21
31
27
1
2
10
30
3
28
27
2
8
13
7
1
5
15
9
2
27
3
13
16
2
140
142
35
5
Highest AQI recorded in
December113AQI
Lowest AQI recorded in
March20AQI
202331AQI
4
2
1
1
20
1
1
23
3
28
21
3
3
96
9
5
1
Highest AQI recorded in
August69AQI
Lowest AQI recorded in
November13AQI
202238AQI
8
10
5
3
20
22
8
29
26
2
27
3
20
1
6
2
158
18
13
3
Highest AQI recorded in
January79AQI
Lowest AQI recorded in
February6AQI
202163AQI
2
12
15
14
13
1
1
21
10
16
13
1
20
10
16
11
3
1
11
8
11
2
8
10
9
114
88
26
11
Highest AQI recorded in
December117AQI
Lowest AQI recorded in
April33AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2025(Avg.)
80AQILeast Polluted Year Recorded
2023(Avg.)
31AQIBac Ninh gan KCN Yen Phong's annual 2025 AQI (80) shows an average percentage change of 84.3% (worsened AQI) compared to previous years: 2021 (63), 2022 (38), 2023 (31), 2024 (57).
