Hai Duong, Hai Duong, 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+
October Air Quality Analysis
Hai Duong, Hai Duong, Vietnam
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Oct 2024
157AQILowest AQI recorded on
10th Oct 2021
2AQISame Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 83 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Hai Duong, Hai Duong, Vietnam
AQI
Day
Night
.
5 AM4th Oct 2025
5 PM
4 AM5th Oct 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9PM4th Oct
110AQI
Avg. Lowest Time
1PM4th Oct
78AQI
In the last 24 hours,
Hai Duong's AQI reached its highest point of 110 at 9 PM during the Night, while the lowest point, 78, was recorded at 1 PM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hai Duong, Hai Duong, Vietnam
SepOct
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 - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
5th Sep 2025425 AMAQI
5th Sep 2025446 AMAQI
5th Sep 2025427 AMAQI
5th Sep 2025428 AMAQI
5th Sep 2025399 AMAQI
5th Sep 20254110 AMAQI
5th Sep 20253311 AMAQI
5th Sep 20253412 PMAQI
5th Sep 2025361 PMAQI
5th Sep 2025362 PMAQI
5th Sep 2025313 PMAQI
5th Sep 2025314 PMAQI
5th Sep 2025305 PMAQI
5th Sep 2025366 PMAQI
5th Sep 2025477 PMAQI
5th Sep 2025498 PMAQI
5th Sep 2025509 PMAQI
5th Sep 20254710 PMAQI
5th Sep 20254711 PMAQI
6th Sep 20254412 AMAQI
6th Sep 2025471 AMAQI
6th Sep 2025452 AMAQI
6th Sep 2025423 AMAQI
6th Sep 2025444 AMAQI
29°C26/33°C
6th Sep 2025445 AMAQI
6th Sep 2025436 AMAQI
6th Sep 2025267 AMAQI
6th Sep 2025328 AMAQI
6th Sep 2025309 AMAQI
6th Sep 20253810 AMAQI
6th Sep 20253511 AMAQI
6th Sep 20253412 PMAQI
6th Sep 2025371 PMAQI
6th Sep 2025392 PMAQI
6th Sep 2025313 PMAQI
6th Sep 2025324 PMAQI
6th Sep 2025315 PMAQI
6th Sep 2025356 PMAQI
6th Sep 2025397 PMAQI
6th Sep 2025498 PMAQI
6th Sep 2025459 PMAQI
6th Sep 20254410 PMAQI
6th Sep 20254311 PMAQI
7th Sep 20254212 AMAQI
7th Sep 2025451 AMAQI
7th Sep 2025432 AMAQI
7th Sep 2025433 AMAQI
7th Sep 2025434 AMAQI
29°C26/33°C
7th Sep 2025455 AMAQI
7th Sep 2025446 AMAQI
7th Sep 2025327 AMAQI
7th Sep 2025478 AMAQI
7th Sep 2025549 AMAQI
7th Sep 20255510 AMAQI
7th Sep 20254811 AMAQI
7th Sep 20255412 PMAQI
7th Sep 2025551 PMAQI
7th Sep 2025522 PMAQI
7th Sep 2025503 PMAQI
7th Sep 2025454 PMAQI
7th Sep 2025495 PMAQI
7th Sep 2025476 PMAQI
7th Sep 2025507 PMAQI
7th Sep 2025558 PMAQI
7th Sep 2025599 PMAQI
7th Sep 20255910 PMAQI
7th Sep 20255911 PMAQI
8th Sep 20255412 AMAQI
8th Sep 2025571 AMAQI
8th Sep 2025502 AMAQI
8th Sep 2025483 AMAQI
8th Sep 2025474 AMAQI
29°C25/34°C
8th Sep 2025455 AMAQI
8th Sep 2025486 AMAQI
8th Sep 2025587 AMAQI
8th Sep 2025638 AMAQI
8th Sep 2025629 AMAQI
8th Sep 20256610 AMAQI
8th Sep 20255511 AMAQI
8th Sep 20256512 PMAQI
8th Sep 2025541 PMAQI
8th Sep 2025472 PMAQI
8th Sep 2025503 PMAQI
8th Sep 2025544 PMAQI
8th Sep 2025515 PMAQI
8th Sep 2025506 PMAQI
8th Sep 2025537 PMAQI
8th Sep 2025588 PMAQI
8th Sep 2025609 PMAQI
8th Sep 20255810 PMAQI
8th Sep 20256211 PMAQI
9th Sep 20255612 AMAQI
9th Sep 2025531 AMAQI
9th Sep 2025532 AMAQI
9th Sep 2025533 AMAQI
9th Sep 2025524 AMAQI
29°C26/35°C
9th Sep 2025535 AMAQI
9th Sep 2025536 AMAQI
9th Sep 2025397 AMAQI
9th Sep 2025438 AMAQI
9th Sep 2025539 AMAQI
9th Sep 20254310 AMAQI
9th Sep 20253111 AMAQI
9th Sep 20254212 PMAQI
9th Sep 2025321 PMAQI
9th Sep 2025252 PMAQI
9th Sep 2025273 PMAQI
9th Sep 2025274 PMAQI
9th Sep 2025355 PMAQI
9th Sep 2025416 PMAQI
9th Sep 2025457 PMAQI
9th Sep 2025478 PMAQI
9th Sep 2025489 PMAQI
9th Sep 20254910 PMAQI
9th Sep 20255111 PMAQI
10th Sep 20255212 AMAQI
10th Sep 2025531 AMAQI
10th Sep 2025522 AMAQI
10th Sep 2025513 AMAQI
10th Sep 2025514 AMAQI
28°C27/32°C
10th Sep 2025525 AMAQI
10th Sep 2025516 AMAQI
10th Sep 2025467 AMAQI
10th Sep 2025418 AMAQI
10th Sep 2025409 AMAQI
10th Sep 20254610 AMAQI
10th Sep 20254211 AMAQI
10th Sep 20255212 PMAQI
10th Sep 2025451 PMAQI
10th Sep 2025502 PMAQI
10th Sep 2025503 PMAQI
10th Sep 2025504 PMAQI
10th Sep 2025555 PMAQI
10th Sep 2025546 PMAQI
10th Sep 2025487 PMAQI
10th Sep 2025568 PMAQI
10th Sep 2025579 PMAQI
10th Sep 20254910 PMAQI
10th Sep 20254711 PMAQI
11th Sep 20255112 AMAQI
11th Sep 2025501 AMAQI
11th Sep 2025512 AMAQI
11th Sep 2025503 AMAQI
11th Sep 2025514 AMAQI
28°C26/31°C
11th Sep 2025525 AMAQI
11th Sep 2025526 AMAQI
11th Sep 2025357 AMAQI
11th Sep 2025338 AMAQI
11th Sep 2025299 AMAQI
11th Sep 20253510 AMAQI
11th Sep 20253511 AMAQI
11th Sep 20254112 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025352 PMAQI
11th Sep 2025283 PMAQI
11th Sep 2025364 PMAQI
11th Sep 2025385 PMAQI
11th Sep 2025446 PMAQI
11th Sep 2025527 PMAQI
11th Sep 2025488 PMAQI
11th Sep 2025509 PMAQI
11th Sep 20254810 PMAQI
11th Sep 20254511 PMAQI
12th Sep 20254712 AMAQI
12th Sep 2025491 AMAQI
12th Sep 2025492 AMAQI
12th Sep 2025493 AMAQI
12th Sep 2025514 AMAQI
28°C26/30°C
12th Sep 2025515 AMAQI
12th Sep 2025536 AMAQI
12th Sep 2025317 AMAQI
12th Sep 2025318 AMAQI
12th Sep 2025279 AMAQI
12th Sep 20253510 AMAQI
12th Sep 20253011 AMAQI
12th Sep 20253312 PMAQI
12th Sep 2025311 PMAQI
12th Sep 2025272 PMAQI
12th Sep 2025253 PMAQI
12th Sep 2025254 PMAQI
12th Sep 2025325 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025417 PMAQI
12th Sep 2025458 PMAQI
12th Sep 2025379 PMAQI
12th Sep 20254310 PMAQI
12th Sep 20254711 PMAQI
13th Sep 20255012 AMAQI
13th Sep 2025491 AMAQI
13th Sep 2025492 AMAQI
13th Sep 2025483 AMAQI
13th Sep 2025484 AMAQI
28°C26/31°C
13th Sep 2025485 AMAQI
13th Sep 2025476 AMAQI
13th Sep 2025277 AMAQI
13th Sep 2025328 AMAQI
13th Sep 2025329 AMAQI
13th Sep 20253510 AMAQI
13th Sep 20253311 AMAQI
13th Sep 20253212 PMAQI
13th Sep 2025271 PMAQI
13th Sep 2025312 PMAQI
13th Sep 2025233 PMAQI
13th Sep 2025214 PMAQI
13th Sep 2025225 PMAQI
13th Sep 2025386 PMAQI
13th Sep 2025397 PMAQI
13th Sep 2025418 PMAQI
13th Sep 2025439 PMAQI
13th Sep 20253810 PMAQI
13th Sep 20253911 PMAQI
14th Sep 20254612 AMAQI
14th Sep 2025471 AMAQI
14th Sep 2025452 AMAQI
14th Sep 2025423 AMAQI
14th Sep 2025424 AMAQI
28°C25/32°C
14th Sep 2025445 AMAQI
14th Sep 2025446 AMAQI
14th Sep 2025337 AMAQI
14th Sep 2025298 AMAQI
14th Sep 2025309 AMAQI
14th Sep 20253310 AMAQI
14th Sep 20252911 AMAQI
14th Sep 20252812 PMAQI
14th Sep 2025391 PMAQI
14th Sep 2025332 PMAQI
14th Sep 2025323 PMAQI
14th Sep 2025314 PMAQI
14th Sep 2025285 PMAQI
14th Sep 2025346 PMAQI
14th Sep 2025437 PMAQI
14th Sep 2025508 PMAQI
14th Sep 2025499 PMAQI
14th Sep 20254710 PMAQI
14th Sep 20255011 PMAQI
15th Sep 20255212 AMAQI
15th Sep 2025461 AMAQI
15th Sep 2025452 AMAQI
15th Sep 2025413 AMAQI
15th Sep 2025434 AMAQI
28°C25/32°C
15th Sep 2025435 AMAQI
15th Sep 2025436 AMAQI
15th Sep 2025327 AMAQI
15th Sep 2025338 AMAQI
15th Sep 2025389 AMAQI
15th Sep 20253910 AMAQI
15th Sep 20253711 AMAQI
15th Sep 20253712 PMAQI
15th Sep 2025281 PMAQI
15th Sep 2025392 PMAQI
15th Sep 2025293 PMAQI
15th Sep 2025294 PMAQI
15th Sep 2025265 PMAQI
15th Sep 2025326 PMAQI
15th Sep 2025397 PMAQI
15th Sep 2025388 PMAQI
15th Sep 2025379 PMAQI
15th Sep 20254910 PMAQI
15th Sep 20253611 PMAQI
16th Sep 20254112 AMAQI
16th Sep 2025461 AMAQI
16th Sep 2025432 AMAQI
16th Sep 2025433 AMAQI
16th Sep 2025414 AMAQI
28°C25/31°C
16th Sep 2025425 AMAQI
16th Sep 2025426 AMAQI
16th Sep 2025437 AMAQI
16th Sep 2025478 AMAQI
16th Sep 2025419 AMAQI
16th Sep 20253210 AMAQI
16th Sep 20253511 AMAQI
16th Sep 20253912 PMAQI
16th Sep 2025371 PMAQI
16th Sep 2025362 PMAQI
16th Sep 2025373 PMAQI
16th Sep 2025444 PMAQI
16th Sep 2025415 PMAQI
16th Sep 2025396 PMAQI
16th Sep 2025407 PMAQI
16th Sep 2025378 PMAQI
16th Sep 2025429 PMAQI
16th Sep 20254310 PMAQI
16th Sep 20254311 PMAQI
17th Sep 20254212 AMAQI
17th Sep 2025391 AMAQI
17th Sep 2025442 AMAQI
17th Sep 2025433 AMAQI
17th Sep 2025444 AMAQI
28°C25/32°C
17th Sep 2025455 AMAQI
17th Sep 2025446 AMAQI
17th Sep 2025497 AMAQI
17th Sep 2025548 AMAQI
17th Sep 2025449 AMAQI
17th Sep 20253810 AMAQI
17th Sep 20254511 AMAQI
17th Sep 20253712 PMAQI
17th Sep 2025321 PMAQI
17th Sep 2025442 PMAQI
17th Sep 2025443 PMAQI
17th Sep 2025404 PMAQI
17th Sep 2025375 PMAQI
17th Sep 2025396 PMAQI
17th Sep 2025367 PMAQI
17th Sep 2025368 PMAQI
17th Sep 2025419 PMAQI
17th Sep 20254010 PMAQI
17th Sep 20253911 PMAQI
18th Sep 20253812 AMAQI
18th Sep 2025421 AMAQI
18th Sep 2025442 AMAQI
18th Sep 2025433 AMAQI
18th Sep 2025424 AMAQI
26°C25/28°C
18th Sep 2025425 AMAQI
18th Sep 2025436 AMAQI
18th Sep 2025437 AMAQI
18th Sep 2025478 AMAQI
18th Sep 2025489 AMAQI
18th Sep 20254710 AMAQI
18th Sep 20254411 AMAQI
18th Sep 20254212 PMAQI
18th Sep 2025391 PMAQI
18th Sep 2025392 PMAQI
18th Sep 2025333 PMAQI
18th Sep 2025334 PMAQI
18th Sep 2025325 PMAQI
18th Sep 2025346 PMAQI
18th Sep 2025357 PMAQI
18th Sep 2025348 PMAQI
18th Sep 2025369 PMAQI
18th Sep 20253910 PMAQI
18th Sep 20253911 PMAQI
19th Sep 20254312 AMAQI
19th Sep 2025421 AMAQI
19th Sep 2025422 AMAQI
19th Sep 2025433 AMAQI
19th Sep 2025434 AMAQI
26°C24/29°C
19th Sep 2025435 AMAQI
19th Sep 2025426 AMAQI
19th Sep 2025497 AMAQI
19th Sep 2025518 AMAQI
19th Sep 2025549 AMAQI
19th Sep 20255110 AMAQI
19th Sep 20254511 AMAQI
19th Sep 20254412 PMAQI
19th Sep 2025401 PMAQI
19th Sep 2025402 PMAQI
19th Sep 2025373 PMAQI
19th Sep 2025344 PMAQI
19th Sep 2025355 PMAQI
19th Sep 2025366 PMAQI
19th Sep 2025417 PMAQI
19th Sep 2025428 PMAQI
19th Sep 2025439 PMAQI
19th Sep 20254410 PMAQI
19th Sep 20254511 PMAQI
20th Sep 20253912 AMAQI
20th Sep 2025401 AMAQI
20th Sep 2025412 AMAQI
20th Sep 2025463 AMAQI
20th Sep 2025454 AMAQI
28°C25/33°C
20th Sep 2025475 AMAQI
20th Sep 2025456 AMAQI
20th Sep 2025557 AMAQI
20th Sep 2025598 AMAQI
20th Sep 2025569 AMAQI
20th Sep 20255410 AMAQI
20th Sep 20255311 AMAQI
20th Sep 20255212 PMAQI
20th Sep 2025501 PMAQI
20th Sep 2025532 PMAQI
20th Sep 2025523 PMAQI
20th Sep 2025524 PMAQI
20th Sep 2025535 PMAQI
20th Sep 2025536 PMAQI
20th Sep 2025537 PMAQI
20th Sep 2025578 PMAQI
20th Sep 2025609 PMAQI
20th Sep 20256010 PMAQI
20th Sep 20256111 PMAQI
21st Sep 20255612 AMAQI
21st Sep 2025511 AMAQI
21st Sep 2025492 AMAQI
21st Sep 2025523 AMAQI
21st Sep 2025524 AMAQI
29°C25/34°C
21st Sep 2025525 AMAQI
21st Sep 2025526 AMAQI
21st Sep 2025557 AMAQI
21st Sep 2025558 AMAQI
21st Sep 2025579 AMAQI
21st Sep 20255610 AMAQI
21st Sep 20255011 AMAQI
21st Sep 20255212 PMAQI
21st Sep 2025541 PMAQI
21st Sep 2025522 PMAQI
21st Sep 2025533 PMAQI
21st Sep 2025494 PMAQI
21st Sep 2025465 PMAQI
21st Sep 2025526 PMAQI
21st Sep 2025547 PMAQI
21st Sep 2025568 PMAQI
21st Sep 2025569 PMAQI
21st Sep 20255610 PMAQI
21st Sep 20255511 PMAQI
22nd Sep 20255712 AMAQI
22nd Sep 2025541 AMAQI
22nd Sep 2025542 AMAQI
22nd Sep 2025553 AMAQI
22nd Sep 2025554 AMAQI
29°C25/33°C
22nd Sep 2025545 AMAQI
22nd Sep 2025556 AMAQI
22nd Sep 2025497 AMAQI
22nd Sep 2025528 AMAQI
22nd Sep 2025449 AMAQI
22nd Sep 20254310 AMAQI
22nd Sep 20254011 AMAQI
22nd Sep 20253612 PMAQI
22nd Sep 2025401 PMAQI
22nd Sep 2025422 PMAQI
22nd Sep 2025463 PMAQI
22nd Sep 2025434 PMAQI
22nd Sep 2025365 PMAQI
22nd Sep 2025426 PMAQI
22nd Sep 2025487 PMAQI
22nd Sep 2025498 PMAQI
22nd Sep 2025529 PMAQI
22nd Sep 20255310 PMAQI
22nd Sep 20255311 PMAQI
23rd Sep 20255412 AMAQI
23rd Sep 2025551 AMAQI
23rd Sep 2025552 AMAQI
23rd Sep 2025533 AMAQI
23rd Sep 2025544 AMAQI
27°C25/31°C
23rd Sep 2025535 AMAQI
23rd Sep 2025536 AMAQI
23rd Sep 2025537 AMAQI
23rd Sep 2025538 AMAQI
23rd Sep 2025519 AMAQI
23rd Sep 20255010 AMAQI
23rd Sep 20254911 AMAQI
23rd Sep 20254812 PMAQI
23rd Sep 2025471 PMAQI
23rd Sep 2025462 PMAQI
23rd Sep 2025443 PMAQI
23rd Sep 2025464 PMAQI
23rd Sep 2025425 PMAQI
23rd Sep 2025486 PMAQI
23rd Sep 2025567 PMAQI
23rd Sep 2025568 PMAQI
23rd Sep 2025579 PMAQI
23rd Sep 20255610 PMAQI
23rd Sep 20255511 PMAQI
24th Sep 20255712 AMAQI
24th Sep 2025531 AMAQI
24th Sep 2025542 AMAQI
24th Sep 2025533 AMAQI
24th Sep 2025524 AMAQI
28°C24/32°C
24th Sep 2025535 AMAQI
24th Sep 2025526 AMAQI
24th Sep 2025527 AMAQI
24th Sep 2025538 AMAQI
24th Sep 2025519 AMAQI
24th Sep 20254610 AMAQI
24th Sep 20254711 AMAQI
24th Sep 20254212 PMAQI
24th Sep 2025421 PMAQI
24th Sep 2025392 PMAQI
24th Sep 2025383 PMAQI
24th Sep 2025384 PMAQI
24th Sep 2025515 PMAQI
24th Sep 2025536 PMAQI
24th Sep 2025497 PMAQI
24th Sep 2025528 PMAQI
24th Sep 2025519 PMAQI
24th Sep 20255010 PMAQI
24th Sep 20255111 PMAQI
25th Sep 20255512 AMAQI
25th Sep 2025541 AMAQI
25th Sep 2025552 AMAQI
25th Sep 2025543 AMAQI
25th Sep 2025544 AMAQI
28°C24/32°C
25th Sep 2025545 AMAQI
25th Sep 2025536 AMAQI
25th Sep 2025437 AMAQI
25th Sep 2025418 AMAQI
25th Sep 2025349 AMAQI
25th Sep 20253310 AMAQI
25th Sep 20254011 AMAQI
25th Sep 20253812 PMAQI
25th Sep 2025361 PMAQI
25th Sep 2025362 PMAQI
25th Sep 2025373 PMAQI
25th Sep 2025384 PMAQI
25th Sep 2025395 PMAQI
25th Sep 2025366 PMAQI
25th Sep 2025387 PMAQI
25th Sep 2025378 PMAQI
25th Sep 2025379 PMAQI
25th Sep 20253510 PMAQI
25th Sep 20253611 PMAQI
26th Sep 20253712 AMAQI
26th Sep 2025381 AMAQI
26th Sep 2025382 AMAQI
26th Sep 2025373 AMAQI
26th Sep 2025354 AMAQI
24°C23/24°C
26th Sep 2025355 AMAQI
26th Sep 2025356 AMAQI
26th Sep 2025347 AMAQI
26th Sep 2025388 AMAQI
26th Sep 2025399 AMAQI
26th Sep 20253910 AMAQI
26th Sep 20253811 AMAQI
26th Sep 20253612 PMAQI
26th Sep 2025371 PMAQI
26th Sep 2025382 PMAQI
26th Sep 2025423 PMAQI
26th Sep 2025434 PMAQI
26th Sep 2025425 PMAQI
26th Sep 2025416 PMAQI
26th Sep 2025397 PMAQI
26th Sep 2025378 PMAQI
26th Sep 2025319 PMAQI
26th Sep 20252810 PMAQI
26th Sep 20252811 PMAQI
27th Sep 20252912 AMAQI
27th Sep 2025301 AMAQI
27th Sep 2025302 AMAQI
27th Sep 2025293 AMAQI
27th Sep 2025284 AMAQI
26°C24/30°C
27th Sep 2025285 AMAQI
27th Sep 2025286 AMAQI
27th Sep 2025297 AMAQI
27th Sep 2025318 AMAQI
27th Sep 2025319 AMAQI
27th Sep 20252910 AMAQI
27th Sep 20252811 AMAQI
27th Sep 20252412 PMAQI
27th Sep 2025221 PMAQI
27th Sep 2025212 PMAQI
27th Sep 2025213 PMAQI
27th Sep 2025224 PMAQI
27th Sep 2025235 PMAQI
27th Sep 2025256 PMAQI
27th Sep 2025297 PMAQI
27th Sep 2025338 PMAQI
27th Sep 2025379 PMAQI
27th Sep 20254410 PMAQI
27th Sep 20254911 PMAQI
28th Sep 20255612 AMAQI
28th Sep 2025571 AMAQI
28th Sep 2025552 AMAQI
28th Sep 2025543 AMAQI
28th Sep 2025534 AMAQI
28°C25/34°C
28th Sep 2025455 AMAQI
28th Sep 2025376 AMAQI
28th Sep 2025337 AMAQI
28th Sep 2025328 AMAQI
28th Sep 2025289 AMAQI
28th Sep 20252710 AMAQI
28th Sep 20252711 AMAQI
28th Sep 20252712 PMAQI
28th Sep 2025281 PMAQI
28th Sep 2025232 PMAQI
28th Sep 2025203 PMAQI
28th Sep 2025184 PMAQI
28th Sep 2025145 PMAQI
28th Sep 2025146 PMAQI
28th Sep 2025127 PMAQI
28th Sep 2025118 PMAQI
28th Sep 2025109 PMAQI
28th Sep 20251010 PMAQI
28th Sep 20251011 PMAQI
29th Sep 20252312 AMAQI
29th Sep 2025361 AMAQI
29th Sep 2025342 AMAQI
29th Sep 2025323 AMAQI
29th Sep 2025304 AMAQI
26°C24/29°C
29th Sep 2025305 AMAQI
29th Sep 2025316 AMAQI
29th Sep 2025337 AMAQI
29th Sep 2025368 AMAQI
29th Sep 2025369 AMAQI
29th Sep 20253410 AMAQI
29th Sep 20253611 AMAQI
29th Sep 20253612 PMAQI
29th Sep 2025381 PMAQI
29th Sep 2025442 PMAQI
29th Sep 2025483 PMAQI
29th Sep 2025484 PMAQI
29th Sep 2025485 PMAQI
29th Sep 2025486 PMAQI
29th Sep 2025497 PMAQI
29th Sep 2025508 PMAQI
29th Sep 2025529 PMAQI
29th Sep 20255310 PMAQI
29th Sep 20255511 PMAQI
30th Sep 20255212 AMAQI
30th Sep 2025541 AMAQI
30th Sep 2025532 AMAQI
30th Sep 2025513 AMAQI
30th Sep 2025484 AMAQI
26°C25/26°C
30th Sep 2025465 AMAQI
30th Sep 2025486 AMAQI
30th Sep 2025497 AMAQI
30th Sep 2025558 AMAQI
30th Sep 2025569 AMAQI
30th Sep 20255810 AMAQI
30th Sep 20255911 AMAQI
30th Sep 20255812 PMAQI
30th Sep 2025581 PMAQI
30th Sep 2025582 PMAQI
30th Sep 2025583 PMAQI
30th Sep 2025594 PMAQI
30th Sep 2025615 PMAQI
30th Sep 2025646 PMAQI
30th Sep 2025667 PMAQI
30th Sep 2025708 PMAQI
30th Sep 2025699 PMAQI
30th Sep 20256910 PMAQI
30th Sep 20257011 PMAQI
1st Oct 20256912 AMAQI
1st Oct 2025691 AMAQI
1st Oct 2025702 AMAQI
1st Oct 2025713 AMAQI
1st Oct 2025714 AMAQI
26°C25/27°C
1st Oct 2025685 AMAQI
1st Oct 2025676 AMAQI
1st Oct 2025687 AMAQI
1st Oct 2025708 AMAQI
1st Oct 2025669 AMAQI
1st Oct 20256810 AMAQI
1st Oct 20256911 AMAQI
1st Oct 20256912 PMAQI
1st Oct 2025701 PMAQI
1st Oct 2025702 PMAQI
1st Oct 2025713 PMAQI
1st Oct 2025704 PMAQI
1st Oct 2025795 PMAQI
1st Oct 2025836 PMAQI
1st Oct 2025917 PMAQI
1st Oct 2025948 PMAQI
1st Oct 20251029 PMAQI
1st Oct 202510310 PMAQI
1st Oct 20259711 PMAQI
2nd Oct 20259912 AMAQI
2nd Oct 20251001 AMAQI
2nd Oct 2025952 AMAQI
2nd Oct 20251213 AMAQI
2nd Oct 20251474 AMAQI
27°C25/29°C
2nd Oct 20251215 AMAQI
2nd Oct 2025946 AMAQI
2nd Oct 2025947 AMAQI
2nd Oct 20251078 AMAQI
2nd Oct 20251009 AMAQI
2nd Oct 20258610 AMAQI
2nd Oct 20257411 AMAQI
2nd Oct 20257312 PMAQI
2nd Oct 2025701 PMAQI
2nd Oct 2025722 PMAQI
2nd Oct 2025733 PMAQI
2nd Oct 2025744 PMAQI
2nd Oct 2025745 PMAQI
2nd Oct 2025786 PMAQI
2nd Oct 2025807 PMAQI
2nd Oct 2025798 PMAQI
2nd Oct 2025799 PMAQI
2nd Oct 20258210 PMAQI
2nd Oct 20258411 PMAQI
3rd Oct 20258712 AMAQI
3rd Oct 2025931 AMAQI
3rd Oct 2025962 AMAQI
3rd Oct 20251003 AMAQI
3rd Oct 2025864 AMAQI
27°C24/31°C
3rd Oct 2025755 AMAQI
3rd Oct 2025686 AMAQI
3rd Oct 2025687 AMAQI
3rd Oct 2025718 AMAQI
3rd Oct 2025789 AMAQI
3rd Oct 20257310 AMAQI
3rd Oct 20256911 AMAQI
3rd Oct 20256912 PMAQI
3rd Oct 2025711 PMAQI
3rd Oct 2025702 PMAQI
3rd Oct 2025683 PMAQI
3rd Oct 2025694 PMAQI
3rd Oct 2025715 PMAQI
3rd Oct 2025696 PMAQI
3rd Oct 2025927 PMAQI
3rd Oct 2025898 PMAQI
3rd Oct 20251059 PMAQI
3rd Oct 202510910 PMAQI
3rd Oct 202510411 PMAQI
4th Oct 202510412 AMAQI
4th Oct 2025981 AMAQI
4th Oct 20251012 AMAQI
4th Oct 20251053 AMAQI
4th Oct 2025904 AMAQI
27°C24/31°C
4th Oct 2025925 AMAQI
4th Oct 2025956 AMAQI
4th Oct 20251077 AMAQI
4th Oct 20251058 AMAQI
4th Oct 20251059 AMAQI
4th Oct 20258010 AMAQI
4th Oct 20257811 AMAQI
4th Oct 20257812 PMAQI
4th Oct 2025781 PMAQI
4th Oct 2025822 PMAQI
4th Oct 2025873 PMAQI
4th Oct 2025884 PMAQI
4th Oct 2025855 PMAQI
4th Oct 2025906 PMAQI
4th Oct 2025997 PMAQI
4th Oct 20251038 PMAQI
4th Oct 20251109 PMAQI
4th Oct 202510510 PMAQI
4th Oct 20259711 PMAQI
5th Oct 20259612 AMAQI
5th Oct 2025961 AMAQI
5th Oct 2025972 AMAQI
5th Oct 2025933 AMAQI
5th Oct 2025974 AMAQI
--°C/°C
5 AM
11 AM
5 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 AM
51AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
11 AM - 5 PM
44AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 6 AM (Avg. 51), while the lowest AQI was between 11 AM to 5 PM (Avg. 44).
Night time
Avg. Highest Time
12 AM - 4 AM
54AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 PM
47AQI
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. 54), while the lowest AQI was between 6 PM to 6 PM (Avg. 47).
2025 Days Vs Air Quality
Hai Duong, Hai Duong, Vietnam
2025
23%
63
65%
180
11%
30
1%
3
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Good
63 DaysModerate
180 DaysPoor
30 DaysUnhealthy
3 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 23%
Health Risk Level:
Very high
In 2025, 23% of 277 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
Hai Duong, Hai Duong, 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
126AQI
126AQI
2nd January 2025
128AQI
128AQI
3rd January 2025
110AQI
110AQI
4th January 2025
116AQI
116AQI
5th January 2025
125AQI
125AQI
6th January 2025
135AQI
135AQI
7th January 2025
123AQI
123AQI
8th January 2025
122AQI
122AQI
9th January 2025
129AQI
129AQI
10th January 2025
89AQI
89AQI
11th January 2025
99AQI
99AQI
12th January 2025
101AQI
101AQI
13th January 2025
117AQI
117AQI
14th January 2025
132AQI
132AQI
15th January 2025
126AQI
126AQI
16th January 2025
132AQI
132AQI
17th January 2025
141AQI
141AQI
18th January 2025
154AQI
154AQI
19th January 2025
155AQI
155AQI
20th January 2025
171AQI
171AQI
21st January 2025
135AQI
135AQI
22nd January 2025
129AQI
129AQI
23rd January 2025
111AQI
111AQI
24th January 2025
106AQI
106AQI
25th January 2025
86AQI
86AQI
26th January 2025
62AQI
62AQI
27th January 2025
80AQI
80AQI
28th January 2025
77AQI
77AQI
29th January 2025
114AQI
114AQI
30th January 2025
85AQI
85AQI
31st January 2025
83AQI
83AQI
1st February 2025
76AQI
76AQI
2nd February 2025
66AQI
66AQI
3rd February 2025
53AQI
53AQI
4th February 2025
64AQI
64AQI
5th February 2025
91AQI
91AQI
6th February 2025
79AQI
79AQI
7th February 2025
51AQI
51AQI
8th February 2025
62AQI
62AQI
9th February 2025
81AQI
81AQI
10th February 2025
126AQI
126AQI
11th February 2025
131AQI
131AQI
12th February 2025
138AQI
138AQI
13th February 2025
122AQI
122AQI
14th February 2025
116AQI
116AQI
15th February 2025
126AQI
126AQI
16th February 2025
74AQI
74AQI
17th February 2025
98AQI
98AQI
18th February 2025
66AQI
66AQI
19th February 2025
80AQI
80AQI
20th February 2025
75AQI
75AQI
21st February 2025
91AQI
91AQI
22nd February 2025
97AQI
97AQI
23rd February 2025
63AQI
63AQI
24th February 2025
72AQI
72AQI
25th February 2025
86AQI
86AQI
26th February 2025
72AQI
72AQI
27th February 2025
115AQI
115AQI
28th February 2025
72AQI
72AQI
1st March 2025
91AQI
91AQI
2nd March 2025
71AQI
71AQI
3rd March 2025
72AQI
72AQI
4th March 2025
70AQI
70AQI
5th March 2025
74AQI
74AQI
6th March 2025
59AQI
59AQI
7th March 2025
67AQI
67AQI
8th March 2025
85AQI
85AQI
9th March 2025
104AQI
104AQI
10th March 2025
119AQI
119AQI
11th March 2025
85AQI
85AQI
12th March 2025
82AQI
82AQI
13th March 2025
70AQI
70AQI
14th March 2025
66AQI
66AQI
15th March 2025
63AQI
63AQI
16th March 2025
55AQI
55AQI
17th March 2025
75AQI
75AQI
18th March 2025
67AQI
67AQI
19th March 2025
71AQI
71AQI
20th March 2025
76AQI
76AQI
21st March 2025
78AQI
78AQI
22nd March 2025
77AQI
77AQI
23rd March 2025
71AQI
71AQI
24th March 2025
76AQI
76AQI
25th March 2025
82AQI
82AQI
26th March 2025
77AQI
77AQI
27th March 2025
82AQI
82AQI
28th March 2025
84AQI
84AQI
29th March 2025
62AQI
62AQI
30th March 2025
47AQI
47AQI
31st March 2025
50AQI
50AQI
1st April 2025
64AQI
64AQI
2nd April 2025
80AQI
80AQI
3rd April 2025
79AQI
79AQI
4th April 2025
114AQI
114AQI
5th April 2025
81AQI
81AQI
6th April 2025
92AQI
92AQI
7th April 2025
86AQI
86AQI
8th April 2025
93AQI
93AQI
9th April 2025
85AQI
85AQI
10th April 2025
84AQI
84AQI
11th April 2025
82AQI
82AQI
12th April 2025
86AQI
86AQI
13th April 2025
81AQI
81AQI
14th April 2025
84AQI
84AQI
15th April 2025
89AQI
89AQI
16th April 2025
89AQI
89AQI
17th April 2025
86AQI
86AQI
18th April 2025
87AQI
87AQI
19th April 2025
82AQI
82AQI
20th April 2025
74AQI
74AQI
21st April 2025
72AQI
72AQI
22nd April 2025
76AQI
76AQI
23rd April 2025
74AQI
74AQI
24th April 2025
70AQI
70AQI
25th April 2025
64AQI
64AQI
26th April 2025
67AQI
67AQI
27th April 2025
64AQI
64AQI
28th April 2025
61AQI
61AQI
29th April 2025
77AQI
77AQI
30th April 2025
70AQI
70AQI
1st May 2025
62AQI
62AQI
2nd May 2025
71AQI
71AQI
3rd May 2025
67AQI
67AQI
4th May 2025
71AQI
71AQI
5th May 2025
76AQI
76AQI
6th May 2025
70AQI
70AQI
7th May 2025
70AQI
70AQI
8th May 2025
70AQI
70AQI
9th May 2025
71AQI
71AQI
10th May 2025
73AQI
73AQI
11th May 2025
58AQI
58AQI
12th May 2025
68AQI
68AQI
13th May 2025
67AQI
67AQI
14th May 2025
64AQI
64AQI
15th May 2025
61AQI
61AQI
16th May 2025
61AQI
61AQI
17th May 2025
56AQI
56AQI
18th May 2025
58AQI
58AQI
19th May 2025
55AQI
55AQI
20th May 2025
58AQI
58AQI
21st May 2025
58AQI
58AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
54AQI
54AQI
24th May 2025
53AQI
53AQI
25th May 2025
57AQI
57AQI
26th May 2025
63AQI
63AQI
27th May 2025
74AQI
74AQI
28th May 2025
73AQI
73AQI
29th May 2025
59AQI
59AQI
30th May 2025
60AQI
60AQI
31st May 2025
58AQI
58AQI
1st June 2025
54AQI
54AQI
2nd June 2025
55AQI
55AQI
3rd June 2025
54AQI
54AQI
4th June 2025
58AQI
58AQI
5th June 2025
64AQI
64AQI
6th June 2025
58AQI
58AQI
7th June 2025
57AQI
57AQI
8th June 2025
56AQI
56AQI
9th June 2025
59AQI
59AQI
10th June 2025
58AQI
58AQI
11th June 2025
59AQI
59AQI
12th June 2025
57AQI
57AQI
13th June 2025
54AQI
54AQI
14th June 2025
58AQI
58AQI
15th June 2025
65AQI
65AQI
16th June 2025
61AQI
61AQI
17th June 2025
61AQI
61AQI
18th June 2025
53AQI
53AQI
19th June 2025
57AQI
57AQI
20th June 2025
58AQI
58AQI
21st June 2025
55AQI
55AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
54AQI
54AQI
24th June 2025
54AQI
54AQI
25th June 2025
52AQI
52AQI
26th June 2025
50AQI
50AQI
27th June 2025
47AQI
47AQI
28th June 2025
47AQI
47AQI
29th June 2025
43AQI
43AQI
30th June 2025
46AQI
46AQI
1st July 2025
39AQI
39AQI
2nd July 2025
36AQI
36AQI
3rd July 2025
41AQI
41AQI
4th July 2025
55AQI
55AQI
5th July 2025
55AQI
55AQI
6th July 2025
55AQI
55AQI
7th July 2025
54AQI
54AQI
8th July 2025
52AQI
52AQI
9th July 2025
54AQI
54AQI
10th July 2025
50AQI
50AQI
11th July 2025
51AQI
51AQI
12th July 2025
51AQI
51AQI
13th July 2025
55AQI
55AQI
14th July 2025
61AQI
61AQI
15th July 2025
56AQI
56AQI
16th July 2025
51AQI
51AQI
17th July 2025
50AQI
50AQI
18th July 2025
53AQI
53AQI
19th July 2025
59AQI
59AQI
20th July 2025
52AQI
52AQI
21st July 2025
48AQI
48AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
40AQI
40AQI
24th July 2025
39AQI
39AQI
25th July 2025
44AQI
44AQI
26th July 2025
49AQI
49AQI
27th July 2025
47AQI
47AQI
28th July 2025
49AQI
49AQI
29th July 2025
58AQI
58AQI
30th July 2025
57AQI
57AQI
31st July 2025
55AQI
55AQI
1st August 2025
53AQI
53AQI
2nd August 2025
53AQI
53AQI
3rd August 2025
56AQI
56AQI
4th August 2025
56AQI
56AQI
5th August 2025
55AQI
55AQI
6th August 2025
54AQI
54AQI
7th August 2025
53AQI
53AQI
8th August 2025
52AQI
52AQI
9th August 2025
54AQI
54AQI
10th August 2025
54AQI
54AQI
11th August 2025
52AQI
52AQI
12th August 2025
50AQI
50AQI
13th August 2025
50AQI
50AQI
14th August 2025
53AQI
53AQI
15th August 2025
44AQI
44AQI
16th August 2025
40AQI
40AQI
17th August 2025
39AQI
39AQI
18th August 2025
38AQI
38AQI
19th August 2025
40AQI
40AQI
20th August 2025
43AQI
43AQI
21st August 2025
43AQI
43AQI
22nd August 2025
44AQI
44AQI
23rd August 2025
44AQI
44AQI
24th August 2025
44AQI
44AQI
25th August 2025
37AQI
37AQI
26th August 2025
36AQI
36AQI
27th August 2025
39AQI
39AQI
28th August 2025
45AQI
45AQI
29th August 2025
46AQI
46AQI
30th August 2025
41AQI
41AQI
31st August 2025
40AQI
40AQI
1st September 2025
41AQI
41AQI
2nd September 2025
42AQI
42AQI
3rd September 2025
41AQI
41AQI
4th September 2025
45AQI
45AQI
5th September 2025
41AQI
41AQI
6th September 2025
40AQI
40AQI
7th September 2025
48AQI
48AQI
8th September 2025
55AQI
55AQI
9th September 2025
49AQI
49AQI
10th September 2025
51AQI
51AQI
11th September 2025
45AQI
45AQI
12th September 2025
42AQI
42AQI
13th September 2025
40AQI
40AQI
14th September 2025
41AQI
41AQI
15th September 2025
41AQI
41AQI
16th September 2025
40AQI
40AQI
17th September 2025
41AQI
41AQI
18th September 2025
40AQI
40AQI
19th September 2025
43AQI
43AQI
20th September 2025
50AQI
50AQI
21st September 2025
54AQI
54AQI
22nd September 2025
49AQI
49AQI
23rd September 2025
52AQI
52AQI
24th September 2025
51AQI
51AQI
25th September 2025
43AQI
43AQI
26th September 2025
37AQI
37AQI
27th September 2025
30AQI
30AQI
28th September 2025
32AQI
32AQI
29th September 2025
36AQI
36AQI
30th September 2025
57AQI
57AQI
1st October 2025
76AQI
76AQI
2nd October 2025
91AQI
91AQI
3rd October 2025
83AQI
83AQI
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
116AQI
87AQI
74AQI
80AQI
64AQI
55AQI
50AQI
47AQI
44AQI
83AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202569AQI
8
20
3
21
7
2
27
2
29
1
31
5
25
13
18
19
12
24
6
3
63
180
30
3
Highest AQI recorded in
January116AQI
Lowest AQI recorded in
September44AQI
202451AQI
20
2
1
25
1
29
2
20
10
21
9
1
15
15
31
31
7
14
8
1
16
11
2
2
18
12
16
14
1
233
92
26
4
Highest AQI recorded in
December93AQI
Lowest AQI recorded in
February28AQI
202322AQI
29
2
19
1
31
27
3
31
28
2
29
2
31
29
1
29
2
29
29
2
341
15
Highest AQI recorded in
February32AQI
Lowest AQI recorded in
May17AQI
202223AQI
27
4
21
24
7
30
28
3
29
1
24
2
28
31
30
28
3
302
18
Highest AQI recorded in
November31AQI
Lowest AQI recorded in
February13AQI
202139AQI
1
5
9
14
1
1
1
14
12
1
1
23
4
2
22
6
1
27
1
24
3
25
31
30
31
30
31
254
52
26
17
1
1
Highest AQI recorded in
January148AQI
Lowest AQI recorded in
September3AQI
202068AQI
1
2
23
5
1
2
1
3
7
2
6
11
9
3
35
26
12
3
Highest AQI recorded in
December96AQI
Lowest AQI recorded in
September42AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
69AQILeast Polluted Year Recorded
2023(Avg.)
22AQIHai Duong's annual 2025 AQI (69) shows an average percentage change of 103.1% (worsened AQI) compared to previous years: 2020 (68), 2021 (39), 2022 (23), 2023 (22), 2024 (51).
