Long Bien, 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+
September Air Quality Analysis
Long Bien, Ha Noi, Vietnam
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Sep 2023
107AQILowest AQI recorded on
17th Sep 2021
17AQISame Day Analysis (17th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 51 of Moderate air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Long Bien, Ha Noi, Vietnam
AQI
Day
Night
.
5 AM17th Sep 2025
6 PM
4 AM18th Sep 2025
Day time
Avg. Highest Time
8AM17th Sep
66AQI
Avg. Lowest Time
12PM17th Sep
32AQI
Night time
Avg. Highest Time
10PM17th Sep
67AQI
Avg. Lowest Time
6PM17th Sep
41AQI
In the last 24 hours,
Long Bien's AQI reached its highest point of 67 at 10 PM during the Night, while the lowest point, 32, was recorded at 12 PM during the Day between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Long Bien, Ha Noi, Vietnam
AugSep
19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th
Day
Night
19th Aug 2025515 AMAQI
19th Aug 2025506 AMAQI
19th Aug 2025307 AMAQI
19th Aug 2025448 AMAQI
19th Aug 2025459 AMAQI
19th Aug 20252710 AMAQI
19th Aug 20252911 AMAQI
19th Aug 20253012 PMAQI
19th Aug 2025291 PMAQI
19th Aug 2025282 PMAQI
19th Aug 2025313 PMAQI
19th Aug 2025244 PMAQI
19th Aug 2025285 PMAQI
19th Aug 2025306 PMAQI
19th Aug 2025407 PMAQI
19th Aug 2025388 PMAQI
19th Aug 2025429 PMAQI
19th Aug 20255010 PMAQI
19th Aug 20255211 PMAQI
20th Aug 20254912 AMAQI
20th Aug 2025501 AMAQI
20th Aug 2025482 AMAQI
20th Aug 2025473 AMAQI
20th Aug 2025464 AMAQI
25°C24/26°C
20th Aug 2025465 AMAQI
20th Aug 2025486 AMAQI
20th Aug 2025317 AMAQI
20th Aug 2025388 AMAQI
20th Aug 2025369 AMAQI
20th Aug 20254310 AMAQI
20th Aug 20254911 AMAQI
20th Aug 20253912 PMAQI
20th Aug 2025391 PMAQI
20th Aug 2025362 PMAQI
20th Aug 2025383 PMAQI
20th Aug 2025404 PMAQI
20th Aug 2025405 PMAQI
20th Aug 2025406 PMAQI
20th Aug 2025457 PMAQI
20th Aug 2025518 PMAQI
20th Aug 2025469 PMAQI
20th Aug 20255210 PMAQI
20th Aug 20255011 PMAQI
21st Aug 20254612 AMAQI
21st Aug 2025501 AMAQI
21st Aug 2025472 AMAQI
21st Aug 2025473 AMAQI
21st Aug 2025444 AMAQI
28°C24/33°C
21st Aug 2025465 AMAQI
21st Aug 2025446 AMAQI
21st Aug 2025537 AMAQI
21st Aug 2025488 AMAQI
21st Aug 2025529 AMAQI
21st Aug 20255410 AMAQI
21st Aug 20255211 AMAQI
21st Aug 20254512 PMAQI
21st Aug 2025411 PMAQI
21st Aug 2025362 PMAQI
21st Aug 2025373 PMAQI
21st Aug 2025344 PMAQI
21st Aug 2025365 PMAQI
21st Aug 2025386 PMAQI
21st Aug 2025457 PMAQI
21st Aug 2025538 PMAQI
21st Aug 2025569 PMAQI
21st Aug 20255210 PMAQI
21st Aug 20255011 PMAQI
22nd Aug 20255012 AMAQI
22nd Aug 2025541 AMAQI
22nd Aug 2025532 AMAQI
22nd Aug 2025523 AMAQI
22nd Aug 2025524 AMAQI
28°C25/31°C
22nd Aug 2025525 AMAQI
22nd Aug 2025516 AMAQI
22nd Aug 2025427 AMAQI
22nd Aug 2025428 AMAQI
22nd Aug 2025449 AMAQI
22nd Aug 20254610 AMAQI
22nd Aug 20255011 AMAQI
22nd Aug 20254012 PMAQI
22nd Aug 2025401 PMAQI
22nd Aug 2025302 PMAQI
22nd Aug 2025243 PMAQI
22nd Aug 2025444 PMAQI
22nd Aug 2025435 PMAQI
22nd Aug 2025446 PMAQI
22nd Aug 2025427 PMAQI
22nd Aug 2025488 PMAQI
22nd Aug 2025429 PMAQI
22nd Aug 20254410 PMAQI
22nd Aug 20254211 PMAQI
23rd Aug 20254812 AMAQI
23rd Aug 2025521 AMAQI
23rd Aug 2025502 AMAQI
23rd Aug 2025493 AMAQI
23rd Aug 2025504 AMAQI
27°C25/31°C
23rd Aug 2025505 AMAQI
23rd Aug 2025516 AMAQI
23rd Aug 2025607 AMAQI
23rd Aug 2025518 AMAQI
23rd Aug 2025349 AMAQI
23rd Aug 20255010 AMAQI
23rd Aug 20255411 AMAQI
23rd Aug 20254112 PMAQI
23rd Aug 2025351 PMAQI
23rd Aug 2025352 PMAQI
23rd Aug 2025313 PMAQI
23rd Aug 2025354 PMAQI
23rd Aug 2025365 PMAQI
23rd Aug 2025386 PMAQI
23rd Aug 2025437 PMAQI
23rd Aug 2025478 PMAQI
23rd Aug 2025509 PMAQI
23rd Aug 20255010 PMAQI
23rd Aug 20254811 PMAQI
24th Aug 20254712 AMAQI
24th Aug 2025461 AMAQI
24th Aug 2025442 AMAQI
24th Aug 2025423 AMAQI
24th Aug 2025434 AMAQI
28°C25/33°C
24th Aug 2025435 AMAQI
24th Aug 2025436 AMAQI
24th Aug 2025477 AMAQI
24th Aug 2025468 AMAQI
24th Aug 2025429 AMAQI
24th Aug 20254310 AMAQI
24th Aug 20254011 AMAQI
24th Aug 20253812 PMAQI
24th Aug 2025491 PMAQI
24th Aug 2025402 PMAQI
24th Aug 2025383 PMAQI
24th Aug 2025434 PMAQI
24th Aug 2025455 PMAQI
24th Aug 2025426 PMAQI
24th Aug 2025487 PMAQI
24th Aug 2025468 PMAQI
24th Aug 2025479 PMAQI
24th Aug 20254610 PMAQI
24th Aug 20254511 PMAQI
25th Aug 20254312 AMAQI
25th Aug 2025461 AMAQI
25th Aug 2025452 AMAQI
25th Aug 2025423 AMAQI
25th Aug 2025444 AMAQI
29°C25/34°C
25th Aug 2025455 AMAQI
25th Aug 2025466 AMAQI
25th Aug 2025247 AMAQI
25th Aug 2025338 AMAQI
25th Aug 2025269 AMAQI
25th Aug 20252610 AMAQI
25th Aug 20252911 AMAQI
25th Aug 20252612 PMAQI
25th Aug 2025261 PMAQI
25th Aug 2025272 PMAQI
25th Aug 2025383 PMAQI
25th Aug 2025284 PMAQI
25th Aug 2025285 PMAQI
25th Aug 2025416 PMAQI
25th Aug 2025327 PMAQI
25th Aug 2025368 PMAQI
25th Aug 2025329 PMAQI
25th Aug 20254010 PMAQI
25th Aug 20254211 PMAQI
26th Aug 20254212 AMAQI
26th Aug 2025431 AMAQI
26th Aug 2025412 AMAQI
26th Aug 2025403 AMAQI
26th Aug 2025394 AMAQI
25°C24/29°C
26th Aug 2025415 AMAQI
26th Aug 2025416 AMAQI
26th Aug 2025287 AMAQI
26th Aug 2025218 AMAQI
26th Aug 2025249 AMAQI
26th Aug 20252410 AMAQI
26th Aug 20252011 AMAQI
26th Aug 20253412 PMAQI
26th Aug 2025291 PMAQI
26th Aug 2025222 PMAQI
26th Aug 2025263 PMAQI
26th Aug 2025224 PMAQI
26th Aug 2025295 PMAQI
26th Aug 2025266 PMAQI
26th Aug 2025367 PMAQI
26th Aug 2025328 PMAQI
26th Aug 2025369 PMAQI
26th Aug 20253010 PMAQI
26th Aug 20253311 PMAQI
27th Aug 20253912 AMAQI
27th Aug 2025421 AMAQI
27th Aug 2025412 AMAQI
27th Aug 2025403 AMAQI
27th Aug 2025394 AMAQI
24°C23/25°C
27th Aug 2025415 AMAQI
27th Aug 2025416 AMAQI
27th Aug 2025407 AMAQI
27th Aug 2025388 AMAQI
27th Aug 2025349 AMAQI
27th Aug 20253810 AMAQI
27th Aug 20254311 AMAQI
27th Aug 20253212 PMAQI
27th Aug 2025321 PMAQI
27th Aug 2025362 PMAQI
27th Aug 2025323 PMAQI
27th Aug 2025344 PMAQI
27th Aug 2025395 PMAQI
27th Aug 2025416 PMAQI
27th Aug 2025367 PMAQI
27th Aug 2025498 PMAQI
27th Aug 2025409 PMAQI
27th Aug 20253810 PMAQI
27th Aug 20254811 PMAQI
28th Aug 20254112 AMAQI
28th Aug 2025421 AMAQI
28th Aug 2025422 AMAQI
28th Aug 2025423 AMAQI
28th Aug 2025404 AMAQI
25°C24/28°C
28th Aug 2025435 AMAQI
28th Aug 2025416 AMAQI
28th Aug 2025427 AMAQI
28th Aug 2025508 AMAQI
28th Aug 2025549 AMAQI
28th Aug 20253910 AMAQI
28th Aug 20254011 AMAQI
28th Aug 20255212 PMAQI
28th Aug 2025421 PMAQI
28th Aug 2025482 PMAQI
28th Aug 2025503 PMAQI
28th Aug 2025414 PMAQI
28th Aug 2025415 PMAQI
28th Aug 2025446 PMAQI
28th Aug 2025467 PMAQI
28th Aug 2025518 PMAQI
28th Aug 2025499 PMAQI
28th Aug 20254510 PMAQI
28th Aug 20254511 PMAQI
29th Aug 20254212 AMAQI
29th Aug 2025461 AMAQI
29th Aug 2025462 AMAQI
29th Aug 2025473 AMAQI
29th Aug 2025464 AMAQI
27°C23/32°C
29th Aug 2025465 AMAQI
29th Aug 2025466 AMAQI
29th Aug 2025437 AMAQI
29th Aug 2025448 AMAQI
29th Aug 2025449 AMAQI
29th Aug 20255010 AMAQI
29th Aug 20254611 AMAQI
29th Aug 20255512 PMAQI
29th Aug 2025481 PMAQI
29th Aug 2025422 PMAQI
29th Aug 2025413 PMAQI
29th Aug 2025354 PMAQI
29th Aug 2025465 PMAQI
29th Aug 2025476 PMAQI
29th Aug 2025467 PMAQI
29th Aug 2025468 PMAQI
29th Aug 2025409 PMAQI
29th Aug 20254510 PMAQI
29th Aug 20254411 PMAQI
30th Aug 20254512 AMAQI
30th Aug 2025491 AMAQI
30th Aug 2025502 AMAQI
30th Aug 2025493 AMAQI
30th Aug 2025494 AMAQI
27°C24/32°C
30th Aug 2025475 AMAQI
30th Aug 2025486 AMAQI
30th Aug 2025257 AMAQI
30th Aug 2025328 AMAQI
30th Aug 2025339 AMAQI
30th Aug 20253310 AMAQI
30th Aug 20254011 AMAQI
30th Aug 20253612 PMAQI
30th Aug 2025261 PMAQI
30th Aug 2025322 PMAQI
30th Aug 2025283 PMAQI
30th Aug 2025294 PMAQI
30th Aug 2025315 PMAQI
30th Aug 2025406 PMAQI
30th Aug 2025407 PMAQI
30th Aug 2025498 PMAQI
30th Aug 2025469 PMAQI
30th Aug 20254910 PMAQI
30th Aug 20254511 PMAQI
31st Aug 20254412 AMAQI
31st Aug 2025481 AMAQI
31st Aug 2025482 AMAQI
31st Aug 2025443 AMAQI
31st Aug 2025474 AMAQI
27°C24/31°C
31st Aug 2025445 AMAQI
31st Aug 2025456 AMAQI
31st Aug 2025327 AMAQI
31st Aug 2025378 AMAQI
31st Aug 2025269 AMAQI
31st Aug 20252810 AMAQI
31st Aug 20252811 AMAQI
31st Aug 20254012 PMAQI
31st Aug 2025331 PMAQI
31st Aug 2025342 PMAQI
31st Aug 2025383 PMAQI
31st Aug 2025264 PMAQI
31st Aug 2025335 PMAQI
31st Aug 2025386 PMAQI
31st Aug 2025447 PMAQI
31st Aug 2025428 PMAQI
31st Aug 2025449 PMAQI
31st Aug 20254210 PMAQI
31st Aug 20254211 PMAQI
1st Sep 20254012 AMAQI
1st Sep 2025441 AMAQI
1st Sep 2025462 AMAQI
1st Sep 2025443 AMAQI
1st Sep 2025464 AMAQI
27°C24/30°C
1st Sep 2025485 AMAQI
1st Sep 2025486 AMAQI
1st Sep 2025377 AMAQI
1st Sep 2025368 AMAQI
1st Sep 2025539 AMAQI
1st Sep 20254410 AMAQI
1st Sep 20253611 AMAQI
1st Sep 20253312 PMAQI
1st Sep 2025421 PMAQI
1st Sep 2025372 PMAQI
1st Sep 2025323 PMAQI
1st Sep 2025344 PMAQI
1st Sep 2025345 PMAQI
1st Sep 2025426 PMAQI
1st Sep 2025427 PMAQI
1st Sep 2025428 PMAQI
1st Sep 2025469 PMAQI
1st Sep 20253810 PMAQI
1st Sep 20254211 PMAQI
2nd Sep 20254212 AMAQI
2nd Sep 2025421 AMAQI
2nd Sep 2025442 AMAQI
2nd Sep 2025453 AMAQI
2nd Sep 2025444 AMAQI
27°C25/31°C
2nd Sep 2025455 AMAQI
2nd Sep 2025466 AMAQI
2nd Sep 2025387 AMAQI
2nd Sep 2025418 AMAQI
2nd Sep 2025399 AMAQI
2nd Sep 20252510 AMAQI
2nd Sep 20254211 AMAQI
2nd Sep 20254112 PMAQI
2nd Sep 2025361 PMAQI
2nd Sep 2025372 PMAQI
2nd Sep 2025303 PMAQI
2nd Sep 2025344 PMAQI
2nd Sep 2025265 PMAQI
2nd Sep 2025396 PMAQI
2nd Sep 2025467 PMAQI
2nd Sep 2025458 PMAQI
2nd Sep 2025479 PMAQI
2nd Sep 20254410 PMAQI
2nd Sep 20254211 PMAQI
3rd Sep 20254412 AMAQI
3rd Sep 2025471 AMAQI
3rd Sep 2025462 AMAQI
3rd Sep 2025433 AMAQI
3rd Sep 2025444 AMAQI
28°C25/33°C
3rd Sep 2025465 AMAQI
3rd Sep 2025446 AMAQI
3rd Sep 2025297 AMAQI
3rd Sep 2025408 AMAQI
3rd Sep 2025359 AMAQI
3rd Sep 20254410 AMAQI
3rd Sep 20252811 AMAQI
3rd Sep 20253412 PMAQI
3rd Sep 2025371 PMAQI
3rd Sep 2025412 PMAQI
3rd Sep 2025453 PMAQI
3rd Sep 2025404 PMAQI
3rd Sep 2025365 PMAQI
3rd Sep 2025306 PMAQI
3rd Sep 2025387 PMAQI
3rd Sep 2025398 PMAQI
3rd Sep 2025439 PMAQI
3rd Sep 20253910 PMAQI
3rd Sep 20253811 PMAQI
4th Sep 20254812 AMAQI
4th Sep 2025451 AMAQI
4th Sep 2025462 AMAQI
4th Sep 2025463 AMAQI
4th Sep 2025464 AMAQI
29°C25/34°C
4th Sep 2025465 AMAQI
4th Sep 2025466 AMAQI
4th Sep 2025347 AMAQI
4th Sep 2025448 AMAQI
4th Sep 2025359 AMAQI
4th Sep 20253610 AMAQI
4th Sep 20253611 AMAQI
4th Sep 20252812 PMAQI
4th Sep 2025321 PMAQI
4th Sep 2025292 PMAQI
4th Sep 2025493 PMAQI
4th Sep 2025774 PMAQI
4th Sep 2025895 PMAQI
4th Sep 2025816 PMAQI
4th Sep 2025537 PMAQI
4th Sep 2025358 PMAQI
4th Sep 2025379 PMAQI
4th Sep 20254110 PMAQI
4th Sep 20252911 PMAQI
5th Sep 20254212 AMAQI
5th Sep 2025451 AMAQI
5th Sep 2025432 AMAQI
5th Sep 2025443 AMAQI
5th Sep 2025434 AMAQI
29°C25/34°C
5th Sep 2025445 AMAQI
5th Sep 2025446 AMAQI
5th Sep 2025437 AMAQI
5th Sep 2025368 AMAQI
5th Sep 2025389 AMAQI
5th Sep 20253710 AMAQI
5th Sep 20253611 AMAQI
5th Sep 20253412 PMAQI
5th Sep 2025331 PMAQI
5th Sep 2025412 PMAQI
5th Sep 2025323 PMAQI
5th Sep 2025294 PMAQI
5th Sep 2025295 PMAQI
5th Sep 2025356 PMAQI
5th Sep 2025487 PMAQI
5th Sep 2025478 PMAQI
5th Sep 2025509 PMAQI
5th Sep 20254710 PMAQI
5th Sep 20254411 PMAQI
6th Sep 20254612 AMAQI
6th Sep 2025461 AMAQI
6th Sep 2025442 AMAQI
6th Sep 2025443 AMAQI
6th Sep 2025434 AMAQI
29°C25/33°C
6th Sep 2025435 AMAQI
6th Sep 2025436 AMAQI
6th Sep 2025247 AMAQI
6th Sep 2025388 AMAQI
6th Sep 2025329 AMAQI
6th Sep 20254210 AMAQI
6th Sep 20254011 AMAQI
6th Sep 20253312 PMAQI
6th Sep 2025391 PMAQI
6th Sep 2025402 PMAQI
6th Sep 2025323 PMAQI
6th Sep 2025324 PMAQI
6th Sep 2025265 PMAQI
6th Sep 2025366 PMAQI
6th Sep 2025377 PMAQI
6th Sep 2025488 PMAQI
6th Sep 2025469 PMAQI
6th Sep 20254110 PMAQI
6th Sep 20254111 PMAQI
7th Sep 20254212 AMAQI
7th Sep 2025451 AMAQI
7th Sep 2025442 AMAQI
7th Sep 2025443 AMAQI
7th Sep 2025454 AMAQI
29°C26/35°C
7th Sep 2025455 AMAQI
7th Sep 2025436 AMAQI
7th Sep 2025337 AMAQI
7th Sep 2025518 AMAQI
7th Sep 2025589 AMAQI
7th Sep 20256210 AMAQI
7th Sep 20255211 AMAQI
7th Sep 20256012 PMAQI
7th Sep 2025611 PMAQI
7th Sep 2025602 PMAQI
7th Sep 2025523 PMAQI
7th Sep 2025514 PMAQI
7th Sep 2025535 PMAQI
7th Sep 2025496 PMAQI
7th Sep 2025527 PMAQI
7th Sep 2025558 PMAQI
7th Sep 2025599 PMAQI
7th Sep 20256210 PMAQI
7th Sep 20255911 PMAQI
8th Sep 20255412 AMAQI
8th Sep 2025571 AMAQI
8th Sep 2025522 AMAQI
8th Sep 2025493 AMAQI
8th Sep 2025474 AMAQI
30°C26/35°C
8th Sep 2025465 AMAQI
8th Sep 2025486 AMAQI
8th Sep 2025607 AMAQI
8th Sep 2025628 AMAQI
8th Sep 2025599 AMAQI
8th Sep 20256810 AMAQI
8th Sep 20256111 AMAQI
8th Sep 20256912 PMAQI
8th Sep 2025601 PMAQI
8th Sep 2025542 PMAQI
8th Sep 2025533 PMAQI
8th Sep 2025534 PMAQI
8th Sep 2025525 PMAQI
8th Sep 2025506 PMAQI
8th Sep 2025527 PMAQI
8th Sep 2025588 PMAQI
8th Sep 2025599 PMAQI
8th Sep 20255810 PMAQI
8th Sep 20256411 PMAQI
9th Sep 20255912 AMAQI
9th Sep 2025521 AMAQI
9th Sep 2025532 AMAQI
9th Sep 2025543 AMAQI
9th Sep 2025534 AMAQI
30°C26/36°C
9th Sep 2025555 AMAQI
9th Sep 2025546 AMAQI
9th Sep 2025507 AMAQI
9th Sep 2025508 AMAQI
9th Sep 2025529 AMAQI
9th Sep 20254310 AMAQI
9th Sep 20253711 AMAQI
9th Sep 20253812 PMAQI
9th Sep 2025311 PMAQI
9th Sep 2025302 PMAQI
9th Sep 2025283 PMAQI
9th Sep 2025304 PMAQI
9th Sep 2025405 PMAQI
9th Sep 2025436 PMAQI
9th Sep 2025447 PMAQI
9th Sep 2025478 PMAQI
9th Sep 2025469 PMAQI
9th Sep 20255010 PMAQI
9th Sep 20255311 PMAQI
10th Sep 20255312 AMAQI
10th Sep 2025531 AMAQI
10th Sep 2025522 AMAQI
10th Sep 2025523 AMAQI
10th Sep 2025524 AMAQI
28°C26/32°C
10th Sep 2025525 AMAQI
10th Sep 2025526 AMAQI
10th Sep 2025497 AMAQI
10th Sep 2025408 AMAQI
10th Sep 2025499 AMAQI
10th Sep 20255010 AMAQI
10th Sep 20254211 AMAQI
10th Sep 20255412 PMAQI
10th Sep 2025451 PMAQI
10th Sep 2025592 PMAQI
10th Sep 2025543 PMAQI
10th Sep 2025514 PMAQI
10th Sep 2025505 PMAQI
10th Sep 2025566 PMAQI
10th Sep 2025487 PMAQI
10th Sep 2025568 PMAQI
10th Sep 2025569 PMAQI
10th Sep 20254910 PMAQI
10th Sep 20254611 PMAQI
11th Sep 20255112 AMAQI
11th Sep 2025491 AMAQI
11th Sep 2025502 AMAQI
11th Sep 2025503 AMAQI
11th Sep 2025524 AMAQI
28°C25/31°C
11th Sep 2025525 AMAQI
11th Sep 2025526 AMAQI
11th Sep 2025317 AMAQI
11th Sep 2025268 AMAQI
11th Sep 2025289 AMAQI
11th Sep 20253710 AMAQI
11th Sep 20253911 AMAQI
11th Sep 20254012 PMAQI
11th Sep 2025341 PMAQI
11th Sep 2025402 PMAQI
11th Sep 2025303 PMAQI
11th Sep 2025464 PMAQI
11th Sep 2025355 PMAQI
11th Sep 2025496 PMAQI
11th Sep 2025577 PMAQI
11th Sep 2025478 PMAQI
11th Sep 2025509 PMAQI
11th Sep 20254910 PMAQI
11th Sep 20254411 PMAQI
12th Sep 20255012 AMAQI
12th Sep 2025501 AMAQI
12th Sep 2025492 AMAQI
12th Sep 2025493 AMAQI
12th Sep 2025494 AMAQI
28°C25/33°C
12th Sep 2025505 AMAQI
12th Sep 2025526 AMAQI
12th Sep 2025327 AMAQI
12th Sep 2025368 AMAQI
12th Sep 2025259 AMAQI
12th Sep 20253810 AMAQI
12th Sep 20253011 AMAQI
12th Sep 20253412 PMAQI
12th Sep 2025301 PMAQI
12th Sep 2025322 PMAQI
12th Sep 2025293 PMAQI
12th Sep 2025274 PMAQI
12th Sep 2025405 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025407 PMAQI
12th Sep 2025408 PMAQI
12th Sep 2025409 PMAQI
12th Sep 20254710 PMAQI
12th Sep 20254711 PMAQI
13th Sep 20255212 AMAQI
13th Sep 2025501 AMAQI
13th Sep 2025492 AMAQI
13th Sep 2025493 AMAQI
13th Sep 2025494 AMAQI
28°C25/32°C
13th Sep 2025475 AMAQI
13th Sep 2025486 AMAQI
13th Sep 2025267 AMAQI
13th Sep 2025248 AMAQI
13th Sep 2025379 AMAQI
13th Sep 20253610 AMAQI
13th Sep 20253711 AMAQI
13th Sep 20252812 PMAQI
13th Sep 2025271 PMAQI
13th Sep 2025312 PMAQI
13th Sep 2025193 PMAQI
13th Sep 2025284 PMAQI
13th Sep 2025215 PMAQI
13th Sep 2025376 PMAQI
13th Sep 2025407 PMAQI
13th Sep 2025438 PMAQI
13th Sep 2025449 PMAQI
13th Sep 20253610 PMAQI
13th Sep 20254011 PMAQI
14th Sep 20254612 AMAQI
14th Sep 2025481 AMAQI
14th Sep 2025452 AMAQI
14th Sep 2025423 AMAQI
14th Sep 2025434 AMAQI
28°C25/33°C
14th Sep 2025445 AMAQI
14th Sep 2025446 AMAQI
14th Sep 2025317 AMAQI
14th Sep 2025258 AMAQI
14th Sep 2025289 AMAQI
14th Sep 20253110 AMAQI
14th Sep 20252811 AMAQI
14th Sep 20252912 PMAQI
14th Sep 2025381 PMAQI
14th Sep 2025362 PMAQI
14th Sep 2025423 PMAQI
14th Sep 2025344 PMAQI
14th Sep 2025305 PMAQI
14th Sep 2025346 PMAQI
14th Sep 2025447 PMAQI
14th Sep 2025538 PMAQI
14th Sep 2025479 PMAQI
14th Sep 20255010 PMAQI
14th Sep 20255011 PMAQI
15th Sep 20255212 AMAQI
15th Sep 2025491 AMAQI
15th Sep 2025452 AMAQI
15th Sep 2025423 AMAQI
15th Sep 2025434 AMAQI
28°C25/33°C
15th Sep 2025435 AMAQI
15th Sep 2025436 AMAQI
15th Sep 2025337 AMAQI
15th Sep 2025348 AMAQI
15th Sep 2025419 AMAQI
15th Sep 20253810 AMAQI
15th Sep 20254211 AMAQI
15th Sep 20254312 PMAQI
15th Sep 2025351 PMAQI
15th Sep 2025482 PMAQI
15th Sep 2025413 PMAQI
15th Sep 2025464 PMAQI
15th Sep 2025525 PMAQI
15th Sep 2025516 PMAQI
15th Sep 2025477 PMAQI
15th Sep 2025408 PMAQI
15th Sep 2025449 PMAQI
15th Sep 20255010 PMAQI
15th Sep 20254711 PMAQI
16th Sep 20254712 AMAQI
16th Sep 2025461 AMAQI
16th Sep 2025452 AMAQI
16th Sep 2025413 AMAQI
16th Sep 2025434 AMAQI
28°C25/31°C
16th Sep 2025455 AMAQI
16th Sep 2025446 AMAQI
16th Sep 2025537 AMAQI
16th Sep 2025678 AMAQI
16th Sep 2025599 AMAQI
16th Sep 20255410 AMAQI
16th Sep 20256111 AMAQI
16th Sep 20255112 PMAQI
16th Sep 2025431 PMAQI
16th Sep 2025462 PMAQI
16th Sep 2025453 PMAQI
16th Sep 2025514 PMAQI
16th Sep 2025485 PMAQI
16th Sep 2025556 PMAQI
16th Sep 2025487 PMAQI
16th Sep 2025538 PMAQI
16th Sep 2025509 PMAQI
16th Sep 20256310 PMAQI
16th Sep 20255711 PMAQI
17th Sep 20256012 AMAQI
17th Sep 2025471 AMAQI
17th Sep 2025482 AMAQI
17th Sep 2025483 AMAQI
17th Sep 2025494 AMAQI
28°C24/33°C
17th Sep 2025505 AMAQI
17th Sep 2025506 AMAQI
17th Sep 2025587 AMAQI
17th Sep 2025668 AMAQI
17th Sep 2025619 AMAQI
17th Sep 20256410 AMAQI
17th Sep 20255611 AMAQI
17th Sep 20253212 PMAQI
17th Sep 2025381 PMAQI
17th Sep 2025412 PMAQI
17th Sep 2025403 PMAQI
17th Sep 2025364 PMAQI
17th Sep 2025465 PMAQI
17th Sep 2025416 PMAQI
17th Sep 2025467 PMAQI
17th Sep 2025608 PMAQI
17th Sep 2025659 PMAQI
17th Sep 20256710 PMAQI
17th Sep 20256211 PMAQI
18th Sep 20256012 AMAQI
18th Sep 2025501 AMAQI
18th Sep 2025502 AMAQI
18th Sep 2025483 AMAQI
18th Sep 2025494 AMAQI
27°C25/31°C
18th Sep 2025505 AMAQI
5 AM18th Sep 2025526 AMAQI
18th Sep 2025677 AMAQI
18th Sep 2025728 AMAQI
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 AM
47AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
1 PM - 5 PM
38AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 AM (Avg. 47), while the lowest AQI was between 1 PM to 5 PM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 4 AM
47AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
7 PM
44AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 47), while the lowest AQI was between 7 PM to 7 PM (Avg. 44).
2025 Days Vs Air Quality
Long Bien, Ha Noi, Vietnam
2025
14%
36
60%
156
20%
51
7%
17
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Good
36 DaysModerate
156 DaysPoor
51 DaysUnhealthy
17 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2025, 14% of 261 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
Long Bien, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
160AQI
160AQI
2nd January 2025
194AQI
194AQI
3rd January 2025
158AQI
158AQI
4th January 2025
149AQI
149AQI
5th January 2025
152AQI
152AQI
6th January 2025
157AQI
157AQI
7th January 2025
160AQI
160AQI
8th January 2025
139AQI
139AQI
9th January 2025
154AQI
154AQI
10th January 2025
104AQI
104AQI
11th January 2025
115AQI
115AQI
12th January 2025
124AQI
124AQI
13th January 2025
148AQI
148AQI
14th January 2025
152AQI
152AQI
15th January 2025
160AQI
160AQI
16th January 2025
151AQI
151AQI
17th January 2025
159AQI
159AQI
18th January 2025
166AQI
166AQI
19th January 2025
167AQI
167AQI
20th January 2025
182AQI
182AQI
21st January 2025
171AQI
171AQI
22nd January 2025
169AQI
169AQI
23rd January 2025
146AQI
146AQI
24th January 2025
145AQI
145AQI
25th January 2025
114AQI
114AQI
26th January 2025
76AQI
76AQI
27th January 2025
92AQI
92AQI
28th January 2025
83AQI
83AQI
29th January 2025
127AQI
127AQI
30th January 2025
113AQI
113AQI
31st January 2025
98AQI
98AQI
1st February 2025
86AQI
86AQI
2nd February 2025
72AQI
72AQI
3rd February 2025
56AQI
56AQI
4th February 2025
72AQI
72AQI
5th February 2025
101AQI
101AQI
6th February 2025
103AQI
103AQI
7th February 2025
51AQI
51AQI
8th February 2025
64AQI
64AQI
9th February 2025
85AQI
85AQI
10th February 2025
135AQI
135AQI
11th February 2025
145AQI
145AQI
12th February 2025
165AQI
165AQI
13th February 2025
141AQI
141AQI
14th February 2025
143AQI
143AQI
15th February 2025
148AQI
148AQI
16th February 2025
80AQI
80AQI
17th February 2025
117AQI
117AQI
18th February 2025
66AQI
66AQI
19th February 2025
94AQI
94AQI
20th February 2025
135AQI
135AQI
21st February 2025
111AQI
111AQI
22nd February 2025
136AQI
136AQI
23rd February 2025
66AQI
66AQI
24th February 2025
76AQI
76AQI
25th February 2025
93AQI
93AQI
26th February 2025
84AQI
84AQI
27th February 2025
141AQI
141AQI
28th February 2025
107AQI
107AQI
1st March 2025
107AQI
107AQI
2nd March 2025
80AQI
80AQI
3rd March 2025
89AQI
89AQI
4th March 2025
84AQI
84AQI
5th March 2025
89AQI
89AQI
6th March 2025
59AQI
59AQI
7th March 2025
70AQI
70AQI
8th March 2025
90AQI
90AQI
9th March 2025
128AQI
128AQI
10th March 2025
140AQI
140AQI
11th March 2025
124AQI
124AQI
12th March 2025
94AQI
94AQI
13th March 2025
82AQI
82AQI
14th March 2025
82AQI
82AQI
15th March 2025
81AQI
81AQI
16th March 2025
57AQI
57AQI
17th March 2025
78AQI
78AQI
18th March 2025
80AQI
80AQI
19th March 2025
80AQI
80AQI
20th March 2025
89AQI
89AQI
21st March 2025
125AQI
125AQI
22nd March 2025
123AQI
123AQI
23rd March 2025
123AQI
123AQI
24th March 2025
132AQI
132AQI
25th March 2025
128AQI
128AQI
26th March 2025
113AQI
113AQI
27th March 2025
106AQI
106AQI
28th March 2025
110AQI
110AQI
29th March 2025
81AQI
81AQI
30th March 2025
66AQI
66AQI
31st March 2025
71AQI
71AQI
1st April 2025
97AQI
97AQI
2nd April 2025
115AQI
115AQI
3rd April 2025
107AQI
107AQI
4th April 2025
137AQI
137AQI
5th April 2025
120AQI
120AQI
6th April 2025
137AQI
137AQI
7th April 2025
121AQI
121AQI
8th April 2025
121AQI
121AQI
9th April 2025
86AQI
86AQI
10th April 2025
96AQI
96AQI
11th April 2025
96AQI
96AQI
12th April 2025
108AQI
108AQI
13th April 2025
111AQI
111AQI
14th April 2025
119AQI
119AQI
15th April 2025
123AQI
123AQI
16th April 2025
134AQI
134AQI
17th April 2025
117AQI
117AQI
18th April 2025
123AQI
123AQI
19th April 2025
108AQI
108AQI
20th April 2025
94AQI
94AQI
21st April 2025
84AQI
84AQI
22nd April 2025
94AQI
94AQI
23rd April 2025
95AQI
95AQI
24th April 2025
88AQI
88AQI
25th April 2025
76AQI
76AQI
26th April 2025
83AQI
83AQI
27th April 2025
72AQI
72AQI
28th April 2025
70AQI
70AQI
29th April 2025
82AQI
82AQI
30th April 2025
79AQI
79AQI
1st May 2025
62AQI
62AQI
2nd May 2025
75AQI
75AQI
3rd May 2025
78AQI
78AQI
4th May 2025
77AQI
77AQI
5th May 2025
82AQI
82AQI
6th May 2025
76AQI
76AQI
7th May 2025
75AQI
75AQI
8th May 2025
76AQI
76AQI
9th May 2025
79AQI
79AQI
10th May 2025
87AQI
87AQI
11th May 2025
55AQI
55AQI
12th May 2025
76AQI
76AQI
13th May 2025
72AQI
72AQI
14th May 2025
70AQI
70AQI
15th May 2025
65AQI
65AQI
16th May 2025
64AQI
64AQI
17th May 2025
58AQI
58AQI
18th May 2025
55AQI
55AQI
19th May 2025
57AQI
57AQI
20th May 2025
60AQI
60AQI
21st May 2025
59AQI
59AQI
22nd May 2025
58AQI
58AQI
23rd May 2025
54AQI
54AQI
24th May 2025
52AQI
52AQI
25th May 2025
54AQI
54AQI
26th May 2025
60AQI
60AQI
27th May 2025
83AQI
83AQI
28th May 2025
80AQI
80AQI
29th May 2025
60AQI
60AQI
30th May 2025
63AQI
63AQI
31st May 2025
59AQI
59AQI
1st June 2025
57AQI
57AQI
2nd June 2025
58AQI
58AQI
3rd June 2025
57AQI
57AQI
4th June 2025
60AQI
60AQI
5th June 2025
72AQI
72AQI
6th June 2025
59AQI
59AQI
7th June 2025
60AQI
60AQI
8th June 2025
59AQI
59AQI
9th June 2025
63AQI
63AQI
10th June 2025
56AQI
56AQI
11th June 2025
64AQI
64AQI
12th June 2025
60AQI
60AQI
13th June 2025
47AQI
47AQI
14th June 2025
60AQI
60AQI
15th June 2025
65AQI
65AQI
16th June 2025
64AQI
64AQI
17th June 2025
66AQI
66AQI
18th June 2025
58AQI
58AQI
19th June 2025
67AQI
67AQI
20th June 2025
69AQI
69AQI
21st June 2025
64AQI
64AQI
22nd June 2025
71AQI
71AQI
23rd June 2025
65AQI
65AQI
24th June 2025
62AQI
62AQI
25th June 2025
54AQI
54AQI
26th June 2025
57AQI
57AQI
27th June 2025
66AQI
66AQI
28th June 2025
56AQI
56AQI
29th June 2025
56AQI
56AQI
30th June 2025
54AQI
54AQI
1st July 2025
48AQI
48AQI
2nd July 2025
51AQI
51AQI
3rd July 2025
56AQI
56AQI
4th July 2025
62AQI
62AQI
5th July 2025
65AQI
65AQI
6th July 2025
60AQI
60AQI
7th July 2025
68AQI
68AQI
8th July 2025
66AQI
66AQI
9th July 2025
71AQI
71AQI
10th July 2025
57AQI
57AQI
11th July 2025
58AQI
58AQI
12th July 2025
56AQI
56AQI
13th July 2025
57AQI
57AQI
14th July 2025
76AQI
76AQI
15th July 2025
90AQI
90AQI
16th July 2025
64AQI
64AQI
17th July 2025
63AQI
63AQI
18th July 2025
67AQI
67AQI
19th July 2025
81AQI
81AQI
20th July 2025
61AQI
61AQI
21st July 2025
57AQI
57AQI
22nd July 2025
40AQI
40AQI
23rd July 2025
50AQI
50AQI
24th July 2025
49AQI
49AQI
25th July 2025
62AQI
62AQI
26th July 2025
64AQI
64AQI
27th July 2025
61AQI
61AQI
28th July 2025
68AQI
68AQI
29th July 2025
80AQI
80AQI
30th July 2025
74AQI
74AQI
31st July 2025
63AQI
63AQI
1st August 2025
53AQI
53AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
56AQI
56AQI
4th August 2025
56AQI
56AQI
5th August 2025
55AQI
55AQI
6th August 2025
52AQI
52AQI
7th August 2025
60AQI
60AQI
8th August 2025
57AQI
57AQI
9th August 2025
58AQI
58AQI
10th August 2025
57AQI
57AQI
11th August 2025
55AQI
55AQI
12th August 2025
50AQI
50AQI
13th August 2025
51AQI
51AQI
14th August 2025
54AQI
54AQI
15th August 2025
44AQI
44AQI
16th August 2025
41AQI
41AQI
17th August 2025
38AQI
38AQI
18th August 2025
38AQI
38AQI
19th August 2025
41AQI
41AQI
20th August 2025
44AQI
44AQI
21st August 2025
47AQI
47AQI
22nd August 2025
45AQI
45AQI
23rd August 2025
46AQI
46AQI
24th August 2025
44AQI
44AQI
25th August 2025
36AQI
36AQI
26th August 2025
33AQI
33AQI
27th August 2025
39AQI
39AQI
28th August 2025
45AQI
45AQI
29th August 2025
45AQI
45AQI
30th August 2025
41AQI
41AQI
31st August 2025
39AQI
39AQI
1st September 2025
42AQI
42AQI
2nd September 2025
41AQI
41AQI
3rd September 2025
40AQI
40AQI
4th September 2025
47AQI
47AQI
5th September 2025
41AQI
41AQI
6th September 2025
40AQI
40AQI
7th September 2025
51AQI
51AQI
8th September 2025
56AQI
56AQI
9th September 2025
46AQI
46AQI
10th September 2025
51AQI
51AQI
11th September 2025
44AQI
44AQI
12th September 2025
41AQI
41AQI
13th September 2025
38AQI
38AQI
14th September 2025
40AQI
40AQI
15th September 2025
44AQI
44AQI
16th September 2025
50AQI
50AQI
17th September 2025
51AQI
51AQI
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
141AQI
103AQI
96AQI
103AQI
67AQI
61AQI
63AQI
48AQI
45AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202582AQI
4
11
16
14
13
1
19
12
15
15
31
1
29
4
27
18
13
13
4
36
156
51
17
Highest AQI recorded in
January141AQI
Lowest AQI recorded in
September45AQI
202479AQI
2
8
11
2
3
20
4
1
1
15
11
4
20
7
5
18
10
18
1
1
18
12
12
16
3
11
6
6
11
14
12
12
6
12
16
3
80
168
73
11
Highest AQI recorded in
December115AQI
Lowest AQI recorded in
July49AQI
202391AQI
1
3
13
11
3
5
10
3
15
12
3
2
14
14
3
23
4
5
16
9
8
22
1
3
28
10
15
4
2
21
7
1
2
10
8
7
3
13
13
1
39
185
95
26
3
Highest AQI recorded in
January140AQI
Lowest AQI recorded in
July62AQI
202257AQI
5
10
12
4
9
6
4
2
5
23
3
21
6
3
8
4
1
13
22
2
1
21
7
17
14
19
10
1
14
16
1
155
98
25
6
Highest AQI recorded in
January96AQI
Lowest AQI recorded in
July36AQI
202147AQI
15
6
9
1
28
27
2
2
22
7
27
29
1
31
25
5
1
29
1
21
7
3
9
9
9
2
2
6
20
3
265
44
43
7
Highest AQI recorded in
December113AQI
Lowest AQI recorded in
July24AQI
202036AQI
11
2
15
6
16
1
28
2
31
30
28
2
26
5
23
6
1
17
14
225
38
1
Highest AQI recorded in
December48AQI
Lowest AQI recorded in
August27AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
91AQILeast Polluted Year Recorded
2020(Avg.)
36AQILong Bien's annual 2025 AQI (82) shows an average percentage change of 48.9% (worsened AQI) compared to previous years: 2020 (36), 2021 (47), 2022 (57), 2023 (91), 2024 (79).
