Ham Yen District, Tuyen Quang Province, 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
Ham Yen District, Tuyen Quang Province, Vietnam
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
3rd Sep 2023
98AQILowest AQI recorded on
2nd Sep 2024
0AQISame Day Analysis (21st September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 55 of Moderate air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 22nd Sep - 23rd Sep 2025
Ham Yen District, Tuyen Quang Province, Vietnam
AQI
Day
Night
.
5 AM22nd Sep 2025
6 PM
4 AM23rd Sep 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9PM22nd Sep
61AQI
Avg. Lowest Time
2PM22nd Sep
49AQI
In the last 24 hours,
Ham Yen District's AQI reached its highest point of 61 at 9 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 22nd Sep and 23rd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Ham Yen District, Tuyen Quang Province, Vietnam
AugSep
24th - 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 - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd
Day
Night
24th Aug 2025485 AMAQI
24th Aug 2025496 AMAQI
24th Aug 2025527 AMAQI
24th Aug 2025498 AMAQI
24th Aug 2025489 AMAQI
24th Aug 20254610 AMAQI
24th Aug 20254611 AMAQI
24th Aug 20254412 PMAQI
24th Aug 2025421 PMAQI
24th Aug 2025382 PMAQI
24th Aug 2025343 PMAQI
24th Aug 2025404 PMAQI
24th Aug 2025365 PMAQI
24th Aug 2025426 PMAQI
24th Aug 2025527 PMAQI
24th Aug 2025528 PMAQI
24th Aug 2025489 PMAQI
24th Aug 20255010 PMAQI
24th Aug 20254811 PMAQI
25th Aug 20254812 AMAQI
25th Aug 2025481 AMAQI
25th Aug 2025462 AMAQI
25th Aug 2025463 AMAQI
25th Aug 2025464 AMAQI
26°C22/34°C
25th Aug 2025485 AMAQI
25th Aug 2025466 AMAQI
25th Aug 2025367 AMAQI
25th Aug 2025408 AMAQI
25th Aug 2025329 AMAQI
25th Aug 20253410 AMAQI
25th Aug 20253611 AMAQI
25th Aug 20253412 PMAQI
25th Aug 2025271 PMAQI
25th Aug 2025322 PMAQI
25th Aug 2025303 PMAQI
25th Aug 2025314 PMAQI
25th Aug 2025345 PMAQI
25th Aug 2025446 PMAQI
25th Aug 2025387 PMAQI
25th Aug 2025458 PMAQI
25th Aug 2025409 PMAQI
25th Aug 20254210 PMAQI
25th Aug 20254411 PMAQI
26th Aug 20254812 AMAQI
26th Aug 2025461 AMAQI
26th Aug 2025432 AMAQI
26th Aug 2025423 AMAQI
26th Aug 2025434 AMAQI
24°C21/31°C
26th Aug 2025445 AMAQI
26th Aug 2025466 AMAQI
26th Aug 2025307 AMAQI
26th Aug 2025388 AMAQI
26th Aug 2025339 AMAQI
26th Aug 20253210 AMAQI
26th Aug 20253011 AMAQI
26th Aug 20253612 PMAQI
26th Aug 2025371 PMAQI
26th Aug 2025362 PMAQI
26th Aug 2025383 PMAQI
26th Aug 2025384 PMAQI
26th Aug 2025385 PMAQI
26th Aug 2025466 PMAQI
26th Aug 2025447 PMAQI
26th Aug 2025468 PMAQI
26th Aug 2025409 PMAQI
26th Aug 20254110 PMAQI
26th Aug 20255011 PMAQI
27th Aug 20254612 AMAQI
27th Aug 2025441 AMAQI
27th Aug 2025422 AMAQI
27th Aug 2025433 AMAQI
27th Aug 2025424 AMAQI
22°C22/23°C
27th Aug 2025425 AMAQI
27th Aug 2025426 AMAQI
27th Aug 2025447 AMAQI
27th Aug 2025518 AMAQI
27th Aug 2025549 AMAQI
27th Aug 20255210 AMAQI
27th Aug 20254611 AMAQI
27th Aug 20253912 PMAQI
27th Aug 2025491 PMAQI
27th Aug 2025452 PMAQI
27th Aug 2025443 PMAQI
27th Aug 2025474 PMAQI
27th Aug 2025365 PMAQI
27th Aug 2025446 PMAQI
27th Aug 2025447 PMAQI
27th Aug 2025448 PMAQI
27th Aug 2025449 PMAQI
27th Aug 20255010 PMAQI
27th Aug 20254811 PMAQI
28th Aug 20254612 AMAQI
28th Aug 2025451 AMAQI
28th Aug 2025442 AMAQI
28th Aug 2025463 AMAQI
28th Aug 2025454 AMAQI
24°C21/29°C
28th Aug 2025485 AMAQI
28th Aug 2025466 AMAQI
28th Aug 2025557 AMAQI
28th Aug 2025518 AMAQI
28th Aug 2025529 AMAQI
28th Aug 20255210 AMAQI
28th Aug 20254611 AMAQI
28th Aug 20255012 PMAQI
28th Aug 2025511 PMAQI
28th Aug 2025512 PMAQI
28th Aug 2025553 PMAQI
28th Aug 2025504 PMAQI
28th Aug 2025545 PMAQI
28th Aug 2025526 PMAQI
28th Aug 2025557 PMAQI
28th Aug 2025538 PMAQI
28th Aug 2025549 PMAQI
28th Aug 20255010 PMAQI
28th Aug 20254311 PMAQI
29th Aug 20254612 AMAQI
29th Aug 2025501 AMAQI
29th Aug 2025502 AMAQI
29th Aug 2025503 AMAQI
29th Aug 2025484 AMAQI
25°C21/31°C
29th Aug 2025505 AMAQI
29th Aug 2025496 AMAQI
29th Aug 2025487 AMAQI
29th Aug 2025468 AMAQI
29th Aug 2025539 AMAQI
29th Aug 20254510 AMAQI
29th Aug 20254611 AMAQI
29th Aug 20254712 PMAQI
29th Aug 2025461 PMAQI
29th Aug 2025432 PMAQI
29th Aug 2025393 PMAQI
29th Aug 2025354 PMAQI
29th Aug 2025445 PMAQI
29th Aug 2025536 PMAQI
29th Aug 2025537 PMAQI
29th Aug 2025528 PMAQI
29th Aug 2025509 PMAQI
29th Aug 20255410 PMAQI
29th Aug 20255211 PMAQI
30th Aug 20255012 AMAQI
30th Aug 2025511 AMAQI
30th Aug 2025522 AMAQI
30th Aug 2025493 AMAQI
30th Aug 2025494 AMAQI
25°C21/34°C
30th Aug 2025485 AMAQI
30th Aug 2025506 AMAQI
30th Aug 2025477 AMAQI
30th Aug 2025528 AMAQI
30th Aug 2025489 AMAQI
30th Aug 20254410 AMAQI
30th Aug 20254511 AMAQI
30th Aug 20253612 PMAQI
30th Aug 2025301 PMAQI
30th Aug 2025342 PMAQI
30th Aug 2025363 PMAQI
30th Aug 2025374 PMAQI
30th Aug 2025345 PMAQI
30th Aug 2025466 PMAQI
30th Aug 2025467 PMAQI
30th Aug 2025508 PMAQI
30th Aug 2025459 PMAQI
30th Aug 20255010 PMAQI
30th Aug 20254811 PMAQI
31st Aug 20254712 AMAQI
31st Aug 2025511 AMAQI
31st Aug 2025502 AMAQI
31st Aug 2025473 AMAQI
31st Aug 2025494 AMAQI
25°C22/32°C
31st Aug 2025475 AMAQI
31st Aug 2025476 AMAQI
31st Aug 2025427 AMAQI
31st Aug 2025508 AMAQI
31st Aug 2025419 AMAQI
31st Aug 20254610 AMAQI
31st Aug 20254011 AMAQI
31st Aug 20253412 PMAQI
31st Aug 2025311 PMAQI
31st Aug 2025392 PMAQI
31st Aug 2025353 PMAQI
31st Aug 2025314 PMAQI
31st Aug 2025385 PMAQI
31st Aug 2025366 PMAQI
31st Aug 2025457 PMAQI
31st Aug 2025468 PMAQI
31st Aug 2025479 PMAQI
31st Aug 20254810 PMAQI
31st Aug 20254711 PMAQI
1st Sep 20254212 AMAQI
1st Sep 2025461 AMAQI
1st Sep 2025482 AMAQI
1st Sep 2025473 AMAQI
1st Sep 2025484 AMAQI
25°C22/29°C
1st Sep 2025495 AMAQI
1st Sep 2025486 AMAQI
1st Sep 2025367 AMAQI
1st Sep 2025388 AMAQI
1st Sep 2025519 AMAQI
1st Sep 20253610 AMAQI
1st Sep 20254011 AMAQI
1st Sep 20253412 PMAQI
1st Sep 2025351 PMAQI
1st Sep 2025352 PMAQI
1st Sep 2025313 PMAQI
1st Sep 2025374 PMAQI
1st Sep 2025465 PMAQI
1st Sep 2025466 PMAQI
1st Sep 2025467 PMAQI
1st Sep 2025488 PMAQI
1st Sep 2025549 PMAQI
1st Sep 20255010 PMAQI
1st Sep 20254911 PMAQI
2nd Sep 20254412 AMAQI
2nd Sep 2025441 AMAQI
2nd Sep 2025452 AMAQI
2nd Sep 2025463 AMAQI
2nd Sep 2025464 AMAQI
25°C22/32°C
2nd Sep 2025465 AMAQI
2nd Sep 2025466 AMAQI
2nd Sep 2025427 AMAQI
2nd Sep 2025388 AMAQI
2nd Sep 2025489 AMAQI
2nd Sep 20253610 AMAQI
2nd Sep 20254211 AMAQI
2nd Sep 20254612 PMAQI
2nd Sep 2025421 PMAQI
2nd Sep 2025352 PMAQI
2nd Sep 2025443 PMAQI
2nd Sep 2025404 PMAQI
2nd Sep 2025335 PMAQI
2nd Sep 2025496 PMAQI
2nd Sep 2025477 PMAQI
2nd Sep 2025498 PMAQI
2nd Sep 2025489 PMAQI
2nd Sep 20255010 PMAQI
2nd Sep 20254811 PMAQI
3rd Sep 20254612 AMAQI
3rd Sep 2025501 AMAQI
3rd Sep 2025492 AMAQI
3rd Sep 2025463 AMAQI
3rd Sep 2025464 AMAQI
27°C22/33°C
3rd Sep 2025475 AMAQI
3rd Sep 2025466 AMAQI
3rd Sep 2025387 AMAQI
3rd Sep 2025388 AMAQI
3rd Sep 2025469 AMAQI
3rd Sep 20255010 AMAQI
3rd Sep 20253811 AMAQI
3rd Sep 20254212 PMAQI
3rd Sep 2025391 PMAQI
3rd Sep 2025422 PMAQI
3rd Sep 2025463 PMAQI
3rd Sep 2025404 PMAQI
3rd Sep 2025405 PMAQI
3rd Sep 2025396 PMAQI
3rd Sep 2025427 PMAQI
3rd Sep 2025478 PMAQI
3rd Sep 2025529 PMAQI
3rd Sep 20254810 PMAQI
3rd Sep 20254411 PMAQI
4th Sep 20255012 AMAQI
4th Sep 2025481 AMAQI
4th Sep 2025482 AMAQI
4th Sep 2025493 AMAQI
4th Sep 2025484 AMAQI
27°C23/33°C
4th Sep 2025475 AMAQI
4th Sep 2025486 AMAQI
4th Sep 2025427 AMAQI
4th Sep 2025448 AMAQI
4th Sep 2025389 AMAQI
4th Sep 20255410 AMAQI
4th Sep 20254811 AMAQI
4th Sep 20253912 PMAQI
4th Sep 2025401 PMAQI
4th Sep 2025462 PMAQI
4th Sep 2025443 PMAQI
4th Sep 2025444 PMAQI
4th Sep 2025475 PMAQI
4th Sep 2025526 PMAQI
4th Sep 2025627 PMAQI
4th Sep 2025778 PMAQI
4th Sep 2025869 PMAQI
4th Sep 20258710 PMAQI
4th Sep 20259511 PMAQI
5th Sep 20254312 AMAQI
5th Sep 2025481 AMAQI
5th Sep 2025482 AMAQI
5th Sep 2025453 AMAQI
5th Sep 2025474 AMAQI
27°C23/33°C
5th Sep 2025465 AMAQI
5th Sep 2025456 AMAQI
5th Sep 2025547 AMAQI
5th Sep 2025488 AMAQI
5th Sep 2025429 AMAQI
5th Sep 20254410 AMAQI
5th Sep 20254011 AMAQI
5th Sep 20254212 PMAQI
5th Sep 2025411 PMAQI
5th Sep 2025392 PMAQI
5th Sep 2025413 PMAQI
5th Sep 2025444 PMAQI
5th Sep 2025385 PMAQI
5th Sep 2025466 PMAQI
5th Sep 2025497 PMAQI
5th Sep 2025568 PMAQI
5th Sep 2025509 PMAQI
5th Sep 20255010 PMAQI
5th Sep 20255111 PMAQI
6th Sep 20254512 AMAQI
6th Sep 2025481 AMAQI
6th Sep 2025462 AMAQI
6th Sep 2025463 AMAQI
6th Sep 2025464 AMAQI
27°C24/33°C
6th Sep 2025485 AMAQI
6th Sep 2025466 AMAQI
6th Sep 2025237 AMAQI
6th Sep 2025438 AMAQI
6th Sep 2025439 AMAQI
6th Sep 20254310 AMAQI
6th Sep 20254611 AMAQI
6th Sep 20255212 PMAQI
6th Sep 2025401 PMAQI
6th Sep 2025492 PMAQI
6th Sep 2025443 PMAQI
6th Sep 2025514 PMAQI
6th Sep 2025335 PMAQI
6th Sep 2025506 PMAQI
6th Sep 2025527 PMAQI
6th Sep 2025578 PMAQI
6th Sep 2025539 PMAQI
6th Sep 20255210 PMAQI
6th Sep 20255311 PMAQI
7th Sep 20254612 AMAQI
7th Sep 2025491 AMAQI
7th Sep 2025482 AMAQI
7th Sep 2025483 AMAQI
7th Sep 2025484 AMAQI
27°C23/34°C
7th Sep 2025505 AMAQI
7th Sep 2025506 AMAQI
7th Sep 2025487 AMAQI
7th Sep 2025588 AMAQI
7th Sep 2025589 AMAQI
7th Sep 20256110 AMAQI
7th Sep 20255611 AMAQI
7th Sep 20255812 PMAQI
7th Sep 2025571 PMAQI
7th Sep 2025532 PMAQI
7th Sep 2025543 PMAQI
7th Sep 2025524 PMAQI
7th Sep 2025585 PMAQI
7th Sep 2025546 PMAQI
7th Sep 2025557 PMAQI
7th Sep 2025608 PMAQI
7th Sep 2025609 PMAQI
7th Sep 20256210 PMAQI
7th Sep 20256111 PMAQI
8th Sep 20255312 AMAQI
8th Sep 2025541 AMAQI
8th Sep 2025522 AMAQI
8th Sep 2025503 AMAQI
8th Sep 2025514 AMAQI
27°C22/34°C
8th Sep 2025505 AMAQI
8th Sep 2025496 AMAQI
8th Sep 2025607 AMAQI
8th Sep 2025638 AMAQI
8th Sep 2025629 AMAQI
8th Sep 20256610 AMAQI
8th Sep 20255511 AMAQI
8th Sep 20255512 PMAQI
8th Sep 2025541 PMAQI
8th Sep 2025482 PMAQI
8th Sep 2025503 PMAQI
8th Sep 2025474 PMAQI
8th Sep 2025515 PMAQI
8th Sep 2025526 PMAQI
8th Sep 2025547 PMAQI
8th Sep 2025588 PMAQI
8th Sep 2025609 PMAQI
8th Sep 20255610 PMAQI
8th Sep 20255811 PMAQI
9th Sep 20255412 AMAQI
9th Sep 2025521 AMAQI
9th Sep 2025522 AMAQI
9th Sep 2025523 AMAQI
9th Sep 2025524 AMAQI
28°C24/36°C
9th Sep 2025535 AMAQI
9th Sep 2025546 AMAQI
9th Sep 2025477 AMAQI
9th Sep 2025448 AMAQI
9th Sep 2025519 AMAQI
9th Sep 20254810 AMAQI
9th Sep 20253811 AMAQI
9th Sep 20255012 PMAQI
9th Sep 2025451 PMAQI
9th Sep 2025362 PMAQI
9th Sep 2025363 PMAQI
9th Sep 2025354 PMAQI
9th Sep 2025385 PMAQI
9th Sep 2025476 PMAQI
9th Sep 2025507 PMAQI
9th Sep 2025468 PMAQI
9th Sep 2025479 PMAQI
9th Sep 20255110 PMAQI
9th Sep 20255211 PMAQI
10th Sep 20255112 AMAQI
10th Sep 2025521 AMAQI
10th Sep 2025532 AMAQI
10th Sep 2025523 AMAQI
10th Sep 2025524 AMAQI
24°C23/26°C
10th Sep 2025515 AMAQI
10th Sep 2025526 AMAQI
10th Sep 2025447 AMAQI
10th Sep 2025388 AMAQI
10th Sep 2025499 AMAQI
10th Sep 20254410 AMAQI
10th Sep 20254111 AMAQI
10th Sep 20254512 PMAQI
10th Sep 2025481 PMAQI
10th Sep 2025482 PMAQI
10th Sep 2025483 PMAQI
10th Sep 2025484 PMAQI
10th Sep 2025485 PMAQI
10th Sep 2025516 PMAQI
10th Sep 2025457 PMAQI
10th Sep 2025528 PMAQI
10th Sep 2025549 PMAQI
10th Sep 20254910 PMAQI
10th Sep 20255111 PMAQI
11th Sep 20255212 AMAQI
11th Sep 2025521 AMAQI
11th Sep 2025522 AMAQI
11th Sep 2025503 AMAQI
11th Sep 2025524 AMAQI
25°C22/29°C
11th Sep 2025525 AMAQI
11th Sep 2025526 AMAQI
11th Sep 2025447 AMAQI
11th Sep 2025398 AMAQI
11th Sep 2025429 AMAQI
11th Sep 20253910 AMAQI
11th Sep 20253911 AMAQI
11th Sep 20253712 PMAQI
11th Sep 2025331 PMAQI
11th Sep 2025342 PMAQI
11th Sep 2025283 PMAQI
11th Sep 2025334 PMAQI
11th Sep 2025325 PMAQI
11th Sep 2025446 PMAQI
11th Sep 2025517 PMAQI
11th Sep 2025488 PMAQI
11th Sep 2025509 PMAQI
11th Sep 20255010 PMAQI
11th Sep 20254411 PMAQI
12th Sep 20254912 AMAQI
12th Sep 2025501 AMAQI
12th Sep 2025492 AMAQI
12th Sep 2025493 AMAQI
12th Sep 2025504 AMAQI
25°C23/29°C
12th Sep 2025505 AMAQI
12th Sep 2025526 AMAQI
12th Sep 2025327 AMAQI
12th Sep 2025338 AMAQI
12th Sep 2025379 AMAQI
12th Sep 20253810 AMAQI
12th Sep 20253111 AMAQI
12th Sep 20253812 PMAQI
12th Sep 2025301 PMAQI
12th Sep 2025342 PMAQI
12th Sep 2025303 PMAQI
12th Sep 2025304 PMAQI
12th Sep 2025365 PMAQI
12th Sep 2025436 PMAQI
12th Sep 2025437 PMAQI
12th Sep 2025488 PMAQI
12th Sep 2025409 PMAQI
12th Sep 20254510 PMAQI
12th Sep 20255111 PMAQI
13th Sep 20254912 AMAQI
13th Sep 2025491 AMAQI
13th Sep 2025482 AMAQI
13th Sep 2025483 AMAQI
13th Sep 2025484 AMAQI
25°C23/29°C
13th Sep 2025485 AMAQI
13th Sep 2025486 AMAQI
13th Sep 2025337 AMAQI
13th Sep 2025438 AMAQI
13th Sep 2025419 AMAQI
13th Sep 20253410 AMAQI
13th Sep 20254011 AMAQI
13th Sep 20253512 PMAQI
13th Sep 2025351 PMAQI
13th Sep 2025332 PMAQI
13th Sep 2025253 PMAQI
13th Sep 2025264 PMAQI
13th Sep 2025235 PMAQI
13th Sep 2025426 PMAQI
13th Sep 2025427 PMAQI
13th Sep 2025448 PMAQI
13th Sep 2025449 PMAQI
13th Sep 20254010 PMAQI
13th Sep 20254711 PMAQI
14th Sep 20254812 AMAQI
14th Sep 2025471 AMAQI
14th Sep 2025442 AMAQI
14th Sep 2025433 AMAQI
14th Sep 2025444 AMAQI
25°C23/29°C
14th Sep 2025445 AMAQI
14th Sep 2025446 AMAQI
14th Sep 2025397 AMAQI
14th Sep 2025448 AMAQI
14th Sep 2025439 AMAQI
14th Sep 20254710 AMAQI
14th Sep 20253611 AMAQI
14th Sep 20254212 PMAQI
14th Sep 2025361 PMAQI
14th Sep 2025332 PMAQI
14th Sep 2025393 PMAQI
14th Sep 2025374 PMAQI
14th Sep 2025335 PMAQI
14th Sep 2025396 PMAQI
14th Sep 2025487 PMAQI
14th Sep 2025518 PMAQI
14th Sep 2025529 PMAQI
14th Sep 20255110 PMAQI
14th Sep 20254811 PMAQI
15th Sep 20255212 AMAQI
15th Sep 2025481 AMAQI
15th Sep 2025462 AMAQI
15th Sep 2025403 AMAQI
15th Sep 2025444 AMAQI
25°C22/31°C
15th Sep 2025455 AMAQI
15th Sep 2025446 AMAQI
15th Sep 2025387 AMAQI
15th Sep 2025408 AMAQI
15th Sep 2025449 AMAQI
15th Sep 20254610 AMAQI
15th Sep 20253911 AMAQI
15th Sep 20253312 PMAQI
15th Sep 2025341 PMAQI
15th Sep 2025342 PMAQI
15th Sep 2025353 PMAQI
15th Sep 2025404 PMAQI
15th Sep 2025335 PMAQI
15th Sep 2025396 PMAQI
15th Sep 2025447 PMAQI
15th Sep 2025478 PMAQI
15th Sep 2025429 PMAQI
15th Sep 20254310 PMAQI
15th Sep 20254411 PMAQI
16th Sep 20254812 AMAQI
16th Sep 2025501 AMAQI
16th Sep 2025482 AMAQI
16th Sep 2025443 AMAQI
16th Sep 2025444 AMAQI
25°C22/31°C
16th Sep 2025455 AMAQI
16th Sep 2025446 AMAQI
16th Sep 2025477 AMAQI
16th Sep 2025408 AMAQI
16th Sep 2025529 AMAQI
16th Sep 20254410 AMAQI
16th Sep 20254611 AMAQI
16th Sep 20253212 PMAQI
16th Sep 2025401 PMAQI
16th Sep 2025402 PMAQI
16th Sep 2025433 PMAQI
16th Sep 2025464 PMAQI
16th Sep 2025375 PMAQI
16th Sep 2025396 PMAQI
16th Sep 2025437 PMAQI
16th Sep 2025528 PMAQI
16th Sep 2025549 PMAQI
16th Sep 20255310 PMAQI
16th Sep 20254811 PMAQI
17th Sep 20255012 AMAQI
17th Sep 2025461 AMAQI
17th Sep 2025462 AMAQI
17th Sep 2025453 AMAQI
17th Sep 2025464 AMAQI
25°C22/32°C
17th Sep 2025465 AMAQI
17th Sep 2025476 AMAQI
17th Sep 2025457 AMAQI
17th Sep 2025518 AMAQI
17th Sep 2025499 AMAQI
17th Sep 20255210 AMAQI
17th Sep 20254811 AMAQI
17th Sep 20254712 PMAQI
17th Sep 2025491 PMAQI
17th Sep 2025472 PMAQI
17th Sep 2025513 PMAQI
17th Sep 2025444 PMAQI
17th Sep 2025355 PMAQI
17th Sep 2025466 PMAQI
17th Sep 2025447 PMAQI
17th Sep 2025478 PMAQI
17th Sep 2025499 PMAQI
17th Sep 20254910 PMAQI
17th Sep 20254811 PMAQI
18th Sep 20254812 AMAQI
18th Sep 2025501 AMAQI
18th Sep 2025502 AMAQI
18th Sep 2025493 AMAQI
18th Sep 2025494 AMAQI
25°C22/32°C
18th Sep 2025495 AMAQI
18th Sep 2025506 AMAQI
18th Sep 2025507 AMAQI
18th Sep 2025558 AMAQI
18th Sep 2025559 AMAQI
18th Sep 20255010 AMAQI
18th Sep 20254511 AMAQI
18th Sep 20255012 PMAQI
18th Sep 2025501 PMAQI
18th Sep 2025472 PMAQI
18th Sep 2025343 PMAQI
18th Sep 2025304 PMAQI
18th Sep 2025335 PMAQI
18th Sep 2025456 PMAQI
18th Sep 2025477 PMAQI
18th Sep 2025518 PMAQI
18th Sep 2025529 PMAQI
18th Sep 20255210 PMAQI
18th Sep 20255311 PMAQI
19th Sep 20254912 AMAQI
19th Sep 2025521 AMAQI
19th Sep 2025522 AMAQI
19th Sep 2025523 AMAQI
19th Sep 2025504 AMAQI
25°C21/30°C
19th Sep 2025505 AMAQI
19th Sep 2025506 AMAQI
19th Sep 2025527 AMAQI
19th Sep 2025548 AMAQI
19th Sep 2025539 AMAQI
19th Sep 20254910 AMAQI
19th Sep 20254711 AMAQI
19th Sep 20254712 PMAQI
19th Sep 2025431 PMAQI
19th Sep 2025422 PMAQI
19th Sep 2025363 PMAQI
19th Sep 2025364 PMAQI
19th Sep 2025355 PMAQI
19th Sep 2025426 PMAQI
19th Sep 2025517 PMAQI
19th Sep 2025528 PMAQI
19th Sep 2025539 PMAQI
19th Sep 20255310 PMAQI
19th Sep 20255211 PMAQI
20th Sep 20255012 AMAQI
20th Sep 2025501 AMAQI
20th Sep 2025512 AMAQI
20th Sep 2025523 AMAQI
20th Sep 2025524 AMAQI
26°C22/32°C
20th Sep 2025525 AMAQI
20th Sep 2025526 AMAQI
20th Sep 2025587 AMAQI
20th Sep 2025618 AMAQI
20th Sep 2025589 AMAQI
20th Sep 20256910 AMAQI
20th Sep 20256211 AMAQI
20th Sep 20255812 PMAQI
20th Sep 2025561 PMAQI
20th Sep 2025472 PMAQI
20th Sep 2025513 PMAQI
20th Sep 2025524 PMAQI
20th Sep 2025535 PMAQI
20th Sep 2025566 PMAQI
20th Sep 2025567 PMAQI
20th Sep 2025568 PMAQI
20th Sep 2025589 PMAQI
20th Sep 20255610 PMAQI
20th Sep 20255811 PMAQI
21st Sep 20255512 AMAQI
21st Sep 2025531 AMAQI
21st Sep 2025522 AMAQI
21st Sep 2025513 AMAQI
21st Sep 2025524 AMAQI
27°C22/34°C
21st Sep 2025525 AMAQI
21st Sep 2025526 AMAQI
21st Sep 2025577 AMAQI
21st Sep 2025598 AMAQI
21st Sep 2025569 AMAQI
21st Sep 20255810 AMAQI
21st Sep 20255911 AMAQI
21st Sep 20255712 PMAQI
21st Sep 2025561 PMAQI
21st Sep 2025582 PMAQI
21st Sep 2025553 PMAQI
21st Sep 2025504 PMAQI
21st Sep 2025465 PMAQI
21st Sep 2025586 PMAQI
21st Sep 2025577 PMAQI
21st Sep 2025588 PMAQI
21st Sep 2025589 PMAQI
21st Sep 20255810 PMAQI
21st Sep 20255711 PMAQI
22nd Sep 20255412 AMAQI
22nd Sep 2025561 AMAQI
22nd Sep 2025562 AMAQI
22nd Sep 2025573 AMAQI
22nd Sep 2025574 AMAQI
26°C23/31°C
22nd Sep 2025585 AMAQI
22nd Sep 2025576 AMAQI
22nd Sep 2025577 AMAQI
22nd Sep 2025568 AMAQI
22nd Sep 2025539 AMAQI
22nd Sep 20255310 AMAQI
22nd Sep 20255411 AMAQI
22nd Sep 20255412 PMAQI
22nd Sep 2025531 PMAQI
22nd Sep 2025492 PMAQI
22nd Sep 2025523 PMAQI
22nd Sep 2025534 PMAQI
22nd Sep 2025525 PMAQI
22nd Sep 2025536 PMAQI
22nd Sep 2025567 PMAQI
22nd Sep 2025588 PMAQI
22nd Sep 2025619 PMAQI
22nd Sep 20255810 PMAQI
22nd Sep 20255811 PMAQI
23rd Sep 20255612 AMAQI
23rd Sep 2025541 AMAQI
23rd Sep 2025552 AMAQI
--°C/°C
5 AM
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 6 AM
48AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
1 PM - 5 PM
41AQI
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. 48), while the lowest AQI was between 1 PM to 5 PM (Avg. 41).
Night time
Avg. Highest Time
8 PM - 11 PM
52AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 7 PM
49AQI
6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 52), while the lowest AQI was between 12 AM to 7 PM (Avg. 49).
2025 Days Vs Air Quality
Ham Yen District, Tuyen Quang Province, Vietnam
2025
18%
48
67%
176
14%
36
2%
4
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Good
48 DaysModerate
176 DaysPoor
36 DaysUnhealthy
4 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 18%
Health Risk Level:
Extreme
In 2025, 18% of 265 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
Ham Yen District, Tuyen Quang Province, 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
150AQI
150AQI
2nd January 2025
151AQI
151AQI
3rd January 2025
142AQI
142AQI
4th January 2025
147AQI
147AQI
5th January 2025
144AQI
144AQI
6th January 2025
152AQI
152AQI
7th January 2025
150AQI
150AQI
8th January 2025
155AQI
155AQI
9th January 2025
145AQI
145AQI
10th January 2025
94AQI
94AQI
11th January 2025
98AQI
98AQI
12th January 2025
104AQI
104AQI
13th January 2025
120AQI
120AQI
14th January 2025
132AQI
132AQI
15th January 2025
134AQI
134AQI
16th January 2025
131AQI
131AQI
17th January 2025
143AQI
143AQI
18th January 2025
149AQI
149AQI
19th January 2025
148AQI
148AQI
20th January 2025
159AQI
159AQI
21st January 2025
143AQI
143AQI
22nd January 2025
142AQI
142AQI
23rd January 2025
142AQI
142AQI
24th January 2025
123AQI
123AQI
25th January 2025
105AQI
105AQI
26th January 2025
71AQI
71AQI
27th January 2025
79AQI
79AQI
28th January 2025
81AQI
81AQI
29th January 2025
112AQI
112AQI
30th January 2025
95AQI
95AQI
31st January 2025
99AQI
99AQI
1st February 2025
100AQI
100AQI
2nd February 2025
94AQI
94AQI
3rd February 2025
70AQI
70AQI
4th February 2025
73AQI
73AQI
5th February 2025
99AQI
99AQI
6th February 2025
88AQI
88AQI
7th February 2025
62AQI
62AQI
8th February 2025
72AQI
72AQI
9th February 2025
83AQI
83AQI
10th February 2025
124AQI
124AQI
11th February 2025
133AQI
133AQI
12th February 2025
121AQI
121AQI
13th February 2025
112AQI
112AQI
14th February 2025
127AQI
127AQI
15th February 2025
113AQI
113AQI
16th February 2025
104AQI
104AQI
17th February 2025
93AQI
93AQI
18th February 2025
79AQI
79AQI
19th February 2025
92AQI
92AQI
20th February 2025
99AQI
99AQI
21st February 2025
83AQI
83AQI
22nd February 2025
94AQI
94AQI
23rd February 2025
59AQI
59AQI
24th February 2025
67AQI
67AQI
25th February 2025
83AQI
83AQI
26th February 2025
68AQI
68AQI
27th February 2025
92AQI
92AQI
28th February 2025
91AQI
91AQI
1st March 2025
89AQI
89AQI
2nd March 2025
88AQI
88AQI
3rd March 2025
86AQI
86AQI
4th March 2025
91AQI
91AQI
5th March 2025
94AQI
94AQI
6th March 2025
73AQI
73AQI
7th March 2025
72AQI
72AQI
8th March 2025
85AQI
85AQI
9th March 2025
96AQI
96AQI
10th March 2025
105AQI
105AQI
11th March 2025
96AQI
96AQI
12th March 2025
89AQI
89AQI
13th March 2025
85AQI
85AQI
14th March 2025
83AQI
83AQI
15th March 2025
77AQI
77AQI
16th March 2025
65AQI
65AQI
17th March 2025
81AQI
81AQI
18th March 2025
71AQI
71AQI
19th March 2025
72AQI
72AQI
20th March 2025
85AQI
85AQI
21st March 2025
102AQI
102AQI
22nd March 2025
114AQI
114AQI
23rd March 2025
113AQI
113AQI
24th March 2025
123AQI
123AQI
25th March 2025
120AQI
120AQI
26th March 2025
114AQI
114AQI
27th March 2025
101AQI
101AQI
28th March 2025
102AQI
102AQI
29th March 2025
80AQI
80AQI
30th March 2025
66AQI
66AQI
31st March 2025
64AQI
64AQI
1st April 2025
73AQI
73AQI
2nd April 2025
91AQI
91AQI
3rd April 2025
89AQI
89AQI
4th April 2025
89AQI
89AQI
5th April 2025
94AQI
94AQI
6th April 2025
92AQI
92AQI
7th April 2025
89AQI
89AQI
8th April 2025
92AQI
92AQI
9th April 2025
79AQI
79AQI
10th April 2025
77AQI
77AQI
11th April 2025
79AQI
79AQI
12th April 2025
78AQI
78AQI
13th April 2025
93AQI
93AQI
14th April 2025
92AQI
92AQI
15th April 2025
90AQI
90AQI
16th April 2025
88AQI
88AQI
17th April 2025
85AQI
85AQI
18th April 2025
78AQI
78AQI
19th April 2025
73AQI
73AQI
20th April 2025
66AQI
66AQI
21st April 2025
67AQI
67AQI
22nd April 2025
67AQI
67AQI
23rd April 2025
72AQI
72AQI
24th April 2025
68AQI
68AQI
25th April 2025
64AQI
64AQI
26th April 2025
66AQI
66AQI
27th April 2025
64AQI
64AQI
28th April 2025
62AQI
62AQI
29th April 2025
63AQI
63AQI
30th April 2025
65AQI
65AQI
1st May 2025
61AQI
61AQI
2nd May 2025
69AQI
69AQI
3rd May 2025
66AQI
66AQI
4th May 2025
68AQI
68AQI
5th May 2025
66AQI
66AQI
6th May 2025
70AQI
70AQI
7th May 2025
68AQI
68AQI
8th May 2025
73AQI
73AQI
9th May 2025
70AQI
70AQI
10th May 2025
69AQI
69AQI
11th May 2025
60AQI
60AQI
12th May 2025
67AQI
67AQI
13th May 2025
73AQI
73AQI
14th May 2025
72AQI
72AQI
15th May 2025
63AQI
63AQI
16th May 2025
59AQI
59AQI
17th May 2025
57AQI
57AQI
18th May 2025
55AQI
55AQI
19th May 2025
62AQI
62AQI
20th May 2025
63AQI
63AQI
21st May 2025
66AQI
66AQI
22nd May 2025
56AQI
56AQI
23rd May 2025
63AQI
63AQI
24th May 2025
60AQI
60AQI
25th May 2025
66AQI
66AQI
26th May 2025
69AQI
69AQI
27th May 2025
83AQI
83AQI
28th May 2025
78AQI
78AQI
29th May 2025
69AQI
69AQI
30th May 2025
62AQI
62AQI
31st May 2025
65AQI
65AQI
1st June 2025
64AQI
64AQI
2nd June 2025
63AQI
63AQI
3rd June 2025
57AQI
57AQI
4th June 2025
60AQI
60AQI
5th June 2025
60AQI
60AQI
6th June 2025
59AQI
59AQI
7th June 2025
58AQI
58AQI
8th June 2025
56AQI
56AQI
9th June 2025
56AQI
56AQI
10th June 2025
58AQI
58AQI
11th June 2025
57AQI
57AQI
12th June 2025
56AQI
56AQI
13th June 2025
53AQI
53AQI
14th June 2025
54AQI
54AQI
15th June 2025
60AQI
60AQI
16th June 2025
59AQI
59AQI
17th June 2025
57AQI
57AQI
18th June 2025
53AQI
53AQI
19th June 2025
53AQI
53AQI
20th June 2025
54AQI
54AQI
21st June 2025
49AQI
49AQI
22nd June 2025
43AQI
43AQI
23rd June 2025
47AQI
47AQI
24th June 2025
51AQI
51AQI
25th June 2025
50AQI
50AQI
26th June 2025
52AQI
52AQI
27th June 2025
54AQI
54AQI
28th June 2025
49AQI
49AQI
29th June 2025
49AQI
49AQI
30th June 2025
46AQI
46AQI
1st July 2025
46AQI
46AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
50AQI
50AQI
4th July 2025
56AQI
56AQI
5th July 2025
57AQI
57AQI
6th July 2025
55AQI
55AQI
7th July 2025
58AQI
58AQI
8th July 2025
57AQI
57AQI
9th July 2025
60AQI
60AQI
10th July 2025
55AQI
55AQI
11th July 2025
54AQI
54AQI
12th July 2025
54AQI
54AQI
13th July 2025
54AQI
54AQI
14th July 2025
55AQI
55AQI
15th July 2025
57AQI
57AQI
16th July 2025
54AQI
54AQI
17th July 2025
55AQI
55AQI
18th July 2025
57AQI
57AQI
19th July 2025
61AQI
61AQI
20th July 2025
56AQI
56AQI
21st July 2025
54AQI
54AQI
22nd July 2025
49AQI
49AQI
23rd July 2025
45AQI
45AQI
24th July 2025
49AQI
49AQI
25th July 2025
53AQI
53AQI
26th July 2025
53AQI
53AQI
27th July 2025
55AQI
55AQI
28th July 2025
59AQI
59AQI
29th July 2025
59AQI
59AQI
30th July 2025
63AQI
63AQI
31st July 2025
58AQI
58AQI
1st August 2025
57AQI
57AQI
2nd August 2025
55AQI
55AQI
3rd August 2025
57AQI
57AQI
4th August 2025
57AQI
57AQI
5th August 2025
56AQI
56AQI
6th August 2025
53AQI
53AQI
7th August 2025
50AQI
50AQI
8th August 2025
54AQI
54AQI
9th August 2025
51AQI
51AQI
10th August 2025
49AQI
49AQI
11th August 2025
54AQI
54AQI
12th August 2025
54AQI
54AQI
13th August 2025
54AQI
54AQI
14th August 2025
56AQI
56AQI
15th August 2025
47AQI
47AQI
16th August 2025
47AQI
47AQI
17th August 2025
45AQI
45AQI
18th August 2025
43AQI
43AQI
19th August 2025
45AQI
45AQI
20th August 2025
46AQI
46AQI
21st August 2025
50AQI
50AQI
22nd August 2025
49AQI
49AQI
23rd August 2025
50AQI
50AQI
24th August 2025
47AQI
47AQI
25th August 2025
43AQI
43AQI
26th August 2025
43AQI
43AQI
27th August 2025
46AQI
46AQI
28th August 2025
49AQI
49AQI
29th August 2025
48AQI
48AQI
30th August 2025
45AQI
45AQI
31st August 2025
44AQI
44AQI
1st September 2025
45AQI
45AQI
2nd September 2025
45AQI
45AQI
3rd September 2025
45AQI
45AQI
4th September 2025
55AQI
55AQI
5th September 2025
44AQI
44AQI
6th September 2025
48AQI
48AQI
7th September 2025
52AQI
52AQI
8th September 2025
55AQI
55AQI
9th September 2025
50AQI
50AQI
10th September 2025
49AQI
49AQI
11th September 2025
46AQI
46AQI
12th September 2025
44AQI
44AQI
13th September 2025
42AQI
42AQI
14th September 2025
45AQI
45AQI
15th September 2025
43AQI
43AQI
16th September 2025
46AQI
46AQI
17th September 2025
48AQI
48AQI
18th September 2025
48AQI
48AQI
19th September 2025
48AQI
48AQI
20th September 2025
55AQI
55AQI
21st September 2025
55AQI
55AQI
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
127AQI
92AQI
90AQI
78AQI
66AQI
55AQI
55AQI
50AQI
48AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202574AQI
7
20
4
21
7
22
9
30
31
7
23
6
25
19
12
16
5
48
176
36
4
Highest AQI recorded in
January127AQI
Lowest AQI recorded in
September48AQI
202461AQI
5
21
5
2
22
5
1
22
8
3
19
8
22
9
28
2
30
1
31
3
6
7
1
21
8
16
12
3
132
140
46
3
Highest AQI recorded in
December109AQI
Lowest AQI recorded in
September2AQI
202396AQI
12
19
5
7
8
1
5
12
14
4
19
6
1
13
17
5
23
2
8
23
21
10
11
19
5
21
1
3
12
9
1
17
11
2
55
152
90
49
1
Highest AQI recorded in
January154AQI
Lowest AQI recorded in
August45AQI
2022128AQI
1
2
6
18
6
1
3
13
13
1
10
33
19
Highest AQI recorded in
December136AQI
Lowest AQI recorded in
October117AQI
Most & Least Polluted Years Over the Last 4 Years
Most Polluted Year Recorded
2022(Avg.)
128AQILeast Polluted Year Recorded
2024(Avg.)
61AQIHam Yen District's annual 2025 AQI (74) shows an average percentage change of -14.6% (improved AQI) compared to previous years: 2022 (128), 2023 (96), 2024 (61).
