Mariano Marcos State University, Batac, Ilocos Norte, Philippines Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Mariano Marcos State University, Batac, Ilocos Norte, Philippines
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2025
58AQILowest AQI recorded on
23rd Aug 2021
6AQISame Day Analysis (4th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Mariano Marcos State University, Batac, Ilocos Norte, Philippines
AQI
Day
Night
.
5 AM5th Aug 2025
6 PM
4 AM6th Aug 2025
Day time
Avg. Highest Time
6AM5th Aug
57AQI
Avg. Lowest Time
12PM5th Aug
36AQI
Night time
Avg. Highest Time
8PM5th Aug
54AQI
Avg. Lowest Time
7PM5th Aug
44AQI
In the last 24 hours,
Mariano Marcos State University's AQI reached its highest point of 57 at 6 AM during the Day, while the lowest point, 36, was recorded at 12 PM during the Day between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Mariano Marcos State University, Batac, Ilocos Norte, Philippines
JulAug
07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th
Day
Night
7th Jul 2025465 AMAQI
7th Jul 2025466 AMAQI
7th Jul 2025467 AMAQI
7th Jul 2025388 AMAQI
7th Jul 2025389 AMAQI
7th Jul 20253710 AMAQI
7th Jul 20253711 AMAQI
7th Jul 20254712 PMAQI
7th Jul 2025381 PMAQI
7th Jul 2025342 PMAQI
7th Jul 2025393 PMAQI
7th Jul 2025374 PMAQI
7th Jul 2025355 PMAQI
7th Jul 2025426 PMAQI
7th Jul 2025467 PMAQI
7th Jul 2025488 PMAQI
7th Jul 2025499 PMAQI
7th Jul 20254710 PMAQI
7th Jul 20254311 PMAQI
8th Jul 20254612 AMAQI
8th Jul 2025491 AMAQI
8th Jul 2025502 AMAQI
8th Jul 2025483 AMAQI
8th Jul 2025474 AMAQI
27°C26/29°C
8th Jul 2025465 AMAQI
8th Jul 2025466 AMAQI
8th Jul 2025487 AMAQI
8th Jul 2025398 AMAQI
8th Jul 2025419 AMAQI
8th Jul 20253710 AMAQI
8th Jul 20253411 AMAQI
8th Jul 20254412 PMAQI
8th Jul 2025431 PMAQI
8th Jul 2025422 PMAQI
8th Jul 2025423 PMAQI
8th Jul 2025424 PMAQI
8th Jul 2025445 PMAQI
8th Jul 2025486 PMAQI
8th Jul 2025467 PMAQI
8th Jul 2025478 PMAQI
8th Jul 2025499 PMAQI
8th Jul 20254810 PMAQI
8th Jul 20254611 PMAQI
9th Jul 20254612 AMAQI
9th Jul 2025491 AMAQI
9th Jul 2025492 AMAQI
9th Jul 2025483 AMAQI
9th Jul 2025454 AMAQI
27°C26/28°C
9th Jul 2025445 AMAQI
9th Jul 2025446 AMAQI
9th Jul 2025447 AMAQI
9th Jul 2025398 AMAQI
9th Jul 2025419 AMAQI
9th Jul 20254210 AMAQI
9th Jul 20254111 AMAQI
9th Jul 20254412 PMAQI
9th Jul 2025431 PMAQI
9th Jul 2025442 PMAQI
9th Jul 2025463 PMAQI
9th Jul 2025484 PMAQI
9th Jul 2025485 PMAQI
9th Jul 2025506 PMAQI
9th Jul 2025477 PMAQI
9th Jul 2025468 PMAQI
9th Jul 2025499 PMAQI
9th Jul 20254610 PMAQI
9th Jul 20254311 PMAQI
10th Jul 20254512 AMAQI
10th Jul 2025461 AMAQI
10th Jul 2025472 AMAQI
10th Jul 2025483 AMAQI
10th Jul 2025464 AMAQI
27°C26/29°C
10th Jul 2025455 AMAQI
10th Jul 2025466 AMAQI
10th Jul 2025467 AMAQI
10th Jul 2025368 AMAQI
10th Jul 2025369 AMAQI
10th Jul 20253910 AMAQI
10th Jul 20253911 AMAQI
10th Jul 20254412 PMAQI
10th Jul 2025501 PMAQI
10th Jul 2025502 PMAQI
10th Jul 2025503 PMAQI
10th Jul 2025484 PMAQI
10th Jul 2025455 PMAQI
10th Jul 2025456 PMAQI
10th Jul 2025447 PMAQI
10th Jul 2025498 PMAQI
10th Jul 2025509 PMAQI
10th Jul 20254810 PMAQI
10th Jul 20254911 PMAQI
11th Jul 20255012 AMAQI
11th Jul 2025471 AMAQI
11th Jul 2025472 AMAQI
11th Jul 2025463 AMAQI
11th Jul 2025474 AMAQI
27°C26/29°C
11th Jul 2025465 AMAQI
11th Jul 2025486 AMAQI
11th Jul 2025487 AMAQI
11th Jul 2025438 AMAQI
11th Jul 2025369 AMAQI
11th Jul 20253810 AMAQI
11th Jul 20254211 AMAQI
11th Jul 20254012 PMAQI
11th Jul 2025391 PMAQI
11th Jul 2025382 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025474 PMAQI
11th Jul 2025465 PMAQI
11th Jul 2025456 PMAQI
11th Jul 2025447 PMAQI
11th Jul 2025498 PMAQI
11th Jul 2025509 PMAQI
11th Jul 20254810 PMAQI
11th Jul 20254911 PMAQI
12th Jul 20254912 AMAQI
12th Jul 2025491 AMAQI
12th Jul 2025492 AMAQI
12th Jul 2025503 AMAQI
12th Jul 2025484 AMAQI
28°C26/30°C
12th Jul 2025495 AMAQI
12th Jul 2025486 AMAQI
12th Jul 2025487 AMAQI
12th Jul 2025478 AMAQI
12th Jul 2025509 AMAQI
12th Jul 20254810 AMAQI
12th Jul 20254211 AMAQI
12th Jul 20254212 PMAQI
12th Jul 2025391 PMAQI
12th Jul 2025422 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025424 PMAQI
12th Jul 2025395 PMAQI
12th Jul 2025416 PMAQI
12th Jul 2025417 PMAQI
12th Jul 2025498 PMAQI
12th Jul 2025509 PMAQI
12th Jul 20254910 PMAQI
12th Jul 20255111 PMAQI
13th Jul 20255012 AMAQI
13th Jul 2025501 AMAQI
13th Jul 2025502 AMAQI
13th Jul 2025483 AMAQI
13th Jul 2025504 AMAQI
28°C26/30°C
13th Jul 2025515 AMAQI
13th Jul 2025496 AMAQI
13th Jul 2025507 AMAQI
13th Jul 2025508 AMAQI
13th Jul 2025539 AMAQI
13th Jul 20255410 AMAQI
13th Jul 20255611 AMAQI
13th Jul 20255312 PMAQI
13th Jul 2025501 PMAQI
13th Jul 2025502 PMAQI
13th Jul 2025483 PMAQI
13th Jul 2025494 PMAQI
13th Jul 2025435 PMAQI
13th Jul 2025446 PMAQI
13th Jul 2025507 PMAQI
13th Jul 2025538 PMAQI
13th Jul 2025529 PMAQI
13th Jul 20255210 PMAQI
13th Jul 20255211 PMAQI
14th Jul 20255112 AMAQI
14th Jul 2025521 AMAQI
14th Jul 2025522 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025514 AMAQI
28°C26/29°C
14th Jul 2025515 AMAQI
14th Jul 2025506 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025528 AMAQI
14th Jul 2025489 AMAQI
14th Jul 20254910 AMAQI
14th Jul 20254811 AMAQI
14th Jul 20255312 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025502 PMAQI
14th Jul 2025503 PMAQI
14th Jul 2025494 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025526 PMAQI
14th Jul 2025497 PMAQI
14th Jul 2025508 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20255012 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025522 AMAQI
15th Jul 2025523 AMAQI
15th Jul 2025524 AMAQI
27°C25/30°C
15th Jul 2025525 AMAQI
15th Jul 2025526 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025498 AMAQI
15th Jul 2025449 AMAQI
15th Jul 20254410 AMAQI
15th Jul 20254311 AMAQI
15th Jul 20255212 PMAQI
15th Jul 2025481 PMAQI
15th Jul 2025452 PMAQI
15th Jul 2025473 PMAQI
15th Jul 2025474 PMAQI
15th Jul 2025495 PMAQI
15th Jul 2025476 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025498 PMAQI
15th Jul 2025529 PMAQI
15th Jul 20255310 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255212 AMAQI
16th Jul 2025521 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025513 AMAQI
16th Jul 2025514 AMAQI
28°C25/30°C
16th Jul 2025525 AMAQI
16th Jul 2025526 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025398 AMAQI
16th Jul 2025379 AMAQI
16th Jul 20253710 AMAQI
16th Jul 20254111 AMAQI
16th Jul 20254012 PMAQI
16th Jul 2025461 PMAQI
16th Jul 2025442 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025445 PMAQI
16th Jul 2025456 PMAQI
16th Jul 2025517 PMAQI
16th Jul 2025518 PMAQI
16th Jul 2025529 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255211 PMAQI
17th Jul 20255112 AMAQI
17th Jul 2025521 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025523 AMAQI
17th Jul 2025524 AMAQI
28°C26/30°C
17th Jul 2025515 AMAQI
17th Jul 2025506 AMAQI
17th Jul 2025517 AMAQI
17th Jul 2025448 AMAQI
17th Jul 2025459 AMAQI
17th Jul 20254710 AMAQI
17th Jul 20255311 AMAQI
17th Jul 20255012 PMAQI
17th Jul 2025521 PMAQI
17th Jul 2025522 PMAQI
17th Jul 2025513 PMAQI
17th Jul 2025494 PMAQI
17th Jul 2025465 PMAQI
17th Jul 2025446 PMAQI
17th Jul 2025467 PMAQI
17th Jul 2025528 PMAQI
17th Jul 2025529 PMAQI
17th Jul 20255110 PMAQI
17th Jul 20255211 PMAQI
18th Jul 20255212 AMAQI
18th Jul 2025521 AMAQI
18th Jul 2025512 AMAQI
18th Jul 2025523 AMAQI
18th Jul 2025524 AMAQI
28°C26/29°C
18th Jul 2025525 AMAQI
18th Jul 2025526 AMAQI
18th Jul 2025527 AMAQI
18th Jul 2025408 AMAQI
18th Jul 2025319 AMAQI
18th Jul 20253210 AMAQI
18th Jul 20253811 AMAQI
18th Jul 20254112 PMAQI
18th Jul 2025451 PMAQI
18th Jul 2025442 PMAQI
18th Jul 2025383 PMAQI
18th Jul 2025404 PMAQI
18th Jul 2025385 PMAQI
18th Jul 2025386 PMAQI
18th Jul 2025397 PMAQI
18th Jul 2025478 PMAQI
18th Jul 2025509 PMAQI
18th Jul 20255010 PMAQI
18th Jul 20255111 PMAQI
19th Jul 20255112 AMAQI
19th Jul 2025521 AMAQI
19th Jul 2025522 AMAQI
19th Jul 2025523 AMAQI
19th Jul 2025524 AMAQI
27°C26/28°C
19th Jul 2025525 AMAQI
19th Jul 2025526 AMAQI
19th Jul 2025527 AMAQI
19th Jul 2025358 AMAQI
19th Jul 2025319 AMAQI
19th Jul 20253310 AMAQI
19th Jul 20253611 AMAQI
19th Jul 20254012 PMAQI
19th Jul 2025421 PMAQI
19th Jul 2025382 PMAQI
19th Jul 2025393 PMAQI
19th Jul 2025374 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025426 PMAQI
19th Jul 2025417 PMAQI
19th Jul 2025488 PMAQI
19th Jul 2025519 PMAQI
19th Jul 20254810 PMAQI
19th Jul 20254811 PMAQI
20th Jul 20254912 AMAQI
20th Jul 2025521 AMAQI
20th Jul 2025512 AMAQI
20th Jul 2025523 AMAQI
20th Jul 2025524 AMAQI
26°C26/27°C
20th Jul 2025525 AMAQI
20th Jul 2025526 AMAQI
20th Jul 2025527 AMAQI
20th Jul 2025508 AMAQI
20th Jul 2025519 AMAQI
20th Jul 20255010 AMAQI
20th Jul 20254711 AMAQI
20th Jul 20254212 PMAQI
20th Jul 2025401 PMAQI
20th Jul 2025422 PMAQI
20th Jul 2025443 PMAQI
20th Jul 2025424 PMAQI
20th Jul 2025445 PMAQI
20th Jul 2025456 PMAQI
20th Jul 2025467 PMAQI
20th Jul 2025488 PMAQI
20th Jul 2025499 PMAQI
20th Jul 20255110 PMAQI
20th Jul 20255111 PMAQI
21st Jul 20255112 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025522 AMAQI
21st Jul 2025513 AMAQI
21st Jul 2025504 AMAQI
27°C25/29°C
21st Jul 2025515 AMAQI
21st Jul 2025526 AMAQI
21st Jul 2025517 AMAQI
21st Jul 2025448 AMAQI
21st Jul 2025359 AMAQI
21st Jul 20253610 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20254412 PMAQI
21st Jul 2025491 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025493 PMAQI
21st Jul 2025474 PMAQI
21st Jul 2025475 PMAQI
21st Jul 2025506 PMAQI
21st Jul 2025507 PMAQI
21st Jul 2025528 PMAQI
21st Jul 2025529 PMAQI
21st Jul 20255010 PMAQI
21st Jul 20255011 PMAQI
22nd Jul 20255012 AMAQI
22nd Jul 2025481 AMAQI
22nd Jul 2025482 AMAQI
22nd Jul 2025513 AMAQI
22nd Jul 2025514 AMAQI
28°C26/30°C
22nd Jul 2025495 AMAQI
22nd Jul 2025516 AMAQI
22nd Jul 2025517 AMAQI
22nd Jul 2025318 AMAQI
22nd Jul 2025299 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20252811 AMAQI
22nd Jul 20253912 PMAQI
22nd Jul 2025391 PMAQI
22nd Jul 2025402 PMAQI
22nd Jul 2025423 PMAQI
22nd Jul 2025414 PMAQI
22nd Jul 2025385 PMAQI
22nd Jul 2025396 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025468 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254810 PMAQI
22nd Jul 20254811 PMAQI
23rd Jul 20254912 AMAQI
23rd Jul 2025501 AMAQI
23rd Jul 2025512 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025514 AMAQI
28°C26/29°C
23rd Jul 2025515 AMAQI
23rd Jul 2025506 AMAQI
23rd Jul 2025507 AMAQI
23rd Jul 2025318 AMAQI
23rd Jul 2025299 AMAQI
23rd Jul 20253610 AMAQI
23rd Jul 20254311 AMAQI
23rd Jul 20254712 PMAQI
23rd Jul 2025401 PMAQI
23rd Jul 2025452 PMAQI
23rd Jul 2025443 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025475 PMAQI
23rd Jul 2025466 PMAQI
23rd Jul 2025507 PMAQI
23rd Jul 2025498 PMAQI
23rd Jul 2025489 PMAQI
23rd Jul 20254910 PMAQI
23rd Jul 20254811 PMAQI
24th Jul 20254912 AMAQI
24th Jul 2025501 AMAQI
24th Jul 2025492 AMAQI
24th Jul 2025503 AMAQI
24th Jul 2025504 AMAQI
27°C26/28°C
24th Jul 2025505 AMAQI
24th Jul 2025506 AMAQI
24th Jul 2025517 AMAQI
24th Jul 2025348 AMAQI
24th Jul 2025319 AMAQI
24th Jul 20253110 AMAQI
24th Jul 20252811 AMAQI
24th Jul 20253812 PMAQI
24th Jul 2025381 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025403 PMAQI
24th Jul 2025394 PMAQI
24th Jul 2025385 PMAQI
24th Jul 2025366 PMAQI
24th Jul 2025367 PMAQI
24th Jul 2025468 PMAQI
24th Jul 2025509 PMAQI
24th Jul 20254810 PMAQI
24th Jul 20254611 PMAQI
25th Jul 20254812 AMAQI
25th Jul 2025481 AMAQI
25th Jul 2025502 AMAQI
25th Jul 2025503 AMAQI
25th Jul 2025514 AMAQI
27°C25/28°C
25th Jul 2025505 AMAQI
25th Jul 2025506 AMAQI
25th Jul 2025507 AMAQI
25th Jul 2025348 AMAQI
25th Jul 2025239 AMAQI
25th Jul 20252810 AMAQI
25th Jul 20252611 AMAQI
25th Jul 20253112 PMAQI
25th Jul 2025361 PMAQI
25th Jul 2025372 PMAQI
25th Jul 2025363 PMAQI
25th Jul 2025364 PMAQI
25th Jul 2025375 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025367 PMAQI
25th Jul 2025458 PMAQI
25th Jul 2025489 PMAQI
25th Jul 20254810 PMAQI
25th Jul 20254611 PMAQI
26th Jul 20254612 AMAQI
26th Jul 2025481 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025493 AMAQI
26th Jul 2025484 AMAQI
26°C25/27°C
26th Jul 2025495 AMAQI
26th Jul 2025486 AMAQI
26th Jul 2025477 AMAQI
26th Jul 2025348 AMAQI
26th Jul 2025259 AMAQI
26th Jul 20252910 AMAQI
26th Jul 20252211 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025371 PMAQI
26th Jul 2025382 PMAQI
26th Jul 2025393 PMAQI
26th Jul 2025374 PMAQI
26th Jul 2025405 PMAQI
26th Jul 2025426 PMAQI
26th Jul 2025467 PMAQI
26th Jul 2025518 PMAQI
26th Jul 2025499 PMAQI
26th Jul 20254910 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20254912 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025482 AMAQI
27th Jul 2025473 AMAQI
27th Jul 2025474 AMAQI
27°C26/29°C
27th Jul 2025485 AMAQI
27th Jul 2025476 AMAQI
27th Jul 2025477 AMAQI
27th Jul 2025468 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20254110 AMAQI
27th Jul 20253611 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025381 PMAQI
27th Jul 2025412 PMAQI
27th Jul 2025433 PMAQI
27th Jul 2025404 PMAQI
27th Jul 2025435 PMAQI
27th Jul 2025406 PMAQI
27th Jul 2025447 PMAQI
27th Jul 2025508 PMAQI
27th Jul 2025509 PMAQI
27th Jul 20255010 PMAQI
27th Jul 20254811 PMAQI
28th Jul 20254912 AMAQI
28th Jul 2025491 AMAQI
28th Jul 2025492 AMAQI
28th Jul 2025503 AMAQI
28th Jul 2025484 AMAQI
27°C26/29°C
28th Jul 2025485 AMAQI
28th Jul 2025486 AMAQI
28th Jul 2025497 AMAQI
28th Jul 2025448 AMAQI
28th Jul 2025469 AMAQI
28th Jul 20255110 AMAQI
28th Jul 20255211 AMAQI
28th Jul 20255112 PMAQI
28th Jul 2025521 PMAQI
28th Jul 2025512 PMAQI
28th Jul 2025493 PMAQI
28th Jul 2025474 PMAQI
28th Jul 2025535 PMAQI
28th Jul 2025536 PMAQI
28th Jul 2025527 PMAQI
28th Jul 2025538 PMAQI
28th Jul 2025509 PMAQI
28th Jul 20255210 PMAQI
28th Jul 20255011 PMAQI
29th Jul 20255012 AMAQI
29th Jul 2025501 AMAQI
29th Jul 2025482 AMAQI
29th Jul 2025483 AMAQI
29th Jul 2025504 AMAQI
26°C25/28°C
29th Jul 2025505 AMAQI
29th Jul 2025506 AMAQI
29th Jul 2025507 AMAQI
29th Jul 2025568 AMAQI
29th Jul 2025559 AMAQI
29th Jul 20255410 AMAQI
29th Jul 20255311 AMAQI
29th Jul 20255212 PMAQI
29th Jul 2025541 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025534 PMAQI
29th Jul 2025535 PMAQI
29th Jul 2025546 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025528 PMAQI
29th Jul 2025519 PMAQI
29th Jul 20255010 PMAQI
29th Jul 20255011 PMAQI
30th Jul 20255012 AMAQI
30th Jul 2025501 AMAQI
30th Jul 2025492 AMAQI
30th Jul 2025503 AMAQI
30th Jul 2025524 AMAQI
27°C26/28°C
30th Jul 2025515 AMAQI
30th Jul 2025516 AMAQI
30th Jul 2025517 AMAQI
30th Jul 2025548 AMAQI
30th Jul 2025569 AMAQI
30th Jul 20255510 AMAQI
30th Jul 20255611 AMAQI
30th Jul 20255212 PMAQI
30th Jul 2025491 PMAQI
30th Jul 2025472 PMAQI
30th Jul 2025483 PMAQI
30th Jul 2025514 PMAQI
30th Jul 2025525 PMAQI
30th Jul 2025526 PMAQI
30th Jul 2025527 PMAQI
30th Jul 2025528 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20255210 PMAQI
30th Jul 20255211 PMAQI
31st Jul 20255112 AMAQI
31st Jul 2025481 AMAQI
31st Jul 2025442 AMAQI
31st Jul 2025483 AMAQI
31st Jul 2025494 AMAQI
27°C26/28°C
31st Jul 2025495 AMAQI
31st Jul 2025496 AMAQI
31st Jul 2025497 AMAQI
31st Jul 2025498 AMAQI
31st Jul 2025499 AMAQI
31st Jul 20255110 AMAQI
31st Jul 20255211 AMAQI
31st Jul 20255212 PMAQI
31st Jul 2025521 PMAQI
31st Jul 2025522 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025534 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025556 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025558 PMAQI
31st Jul 2025559 PMAQI
31st Jul 20255910 PMAQI
31st Jul 20255511 PMAQI
1st Aug 20255612 AMAQI
1st Aug 2025531 AMAQI
1st Aug 2025562 AMAQI
1st Aug 2025503 AMAQI
1st Aug 2025444 AMAQI
27°C26/28°C
1st Aug 2025435 AMAQI
1st Aug 2025496 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025589 AMAQI
1st Aug 20255810 AMAQI
1st Aug 20255611 AMAQI
1st Aug 20255612 PMAQI
1st Aug 2025611 PMAQI
1st Aug 2025572 PMAQI
1st Aug 2025583 PMAQI
1st Aug 2025574 PMAQI
1st Aug 2025585 PMAQI
1st Aug 2025546 PMAQI
1st Aug 2025567 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025599 PMAQI
1st Aug 20256210 PMAQI
1st Aug 20255911 PMAQI
2nd Aug 20255712 AMAQI
2nd Aug 2025601 AMAQI
2nd Aug 2025572 AMAQI
2nd Aug 2025603 AMAQI
2nd Aug 2025584 AMAQI
27°C26/29°C
2nd Aug 2025585 AMAQI
2nd Aug 2025596 AMAQI
2nd Aug 2025617 AMAQI
2nd Aug 2025608 AMAQI
2nd Aug 2025619 AMAQI
2nd Aug 20255910 AMAQI
2nd Aug 20256011 AMAQI
2nd Aug 20255512 PMAQI
2nd Aug 2025591 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025563 PMAQI
2nd Aug 2025574 PMAQI
2nd Aug 2025565 PMAQI
2nd Aug 2025596 PMAQI
2nd Aug 2025567 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025569 PMAQI
2nd Aug 20255710 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025581 AMAQI
3rd Aug 2025592 AMAQI
3rd Aug 2025603 AMAQI
3rd Aug 2025594 AMAQI
28°C26/30°C
3rd Aug 2025605 AMAQI
3rd Aug 2025596 AMAQI
3rd Aug 2025617 AMAQI
3rd Aug 2025548 AMAQI
3rd Aug 2025619 AMAQI
3rd Aug 20256110 AMAQI
3rd Aug 20256511 AMAQI
3rd Aug 20255812 PMAQI
3rd Aug 2025561 PMAQI
3rd Aug 2025532 PMAQI
3rd Aug 2025483 PMAQI
3rd Aug 2025464 PMAQI
3rd Aug 2025445 PMAQI
3rd Aug 2025436 PMAQI
3rd Aug 2025547 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025549 PMAQI
3rd Aug 20255410 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025601 AMAQI
4th Aug 2025602 AMAQI
4th Aug 2025583 AMAQI
4th Aug 2025574 AMAQI
28°C26/30°C
4th Aug 2025575 AMAQI
4th Aug 2025586 AMAQI
4th Aug 2025607 AMAQI
4th Aug 2025508 AMAQI
4th Aug 2025479 AMAQI
4th Aug 20254910 AMAQI
4th Aug 20254411 AMAQI
4th Aug 20254112 PMAQI
4th Aug 2025501 PMAQI
4th Aug 2025502 PMAQI
4th Aug 2025313 PMAQI
4th Aug 2025454 PMAQI
4th Aug 2025475 PMAQI
4th Aug 2025486 PMAQI
4th Aug 2025557 PMAQI
4th Aug 2025548 PMAQI
4th Aug 2025539 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20255511 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025591 AMAQI
5th Aug 2025592 AMAQI
5th Aug 2025603 AMAQI
5th Aug 2025604 AMAQI
28°C26/30°C
5th Aug 2025565 AMAQI
5th Aug 2025576 AMAQI
5th Aug 2025577 AMAQI
5th Aug 2025418 AMAQI
5th Aug 2025489 AMAQI
5th Aug 20253610 AMAQI
5th Aug 20254411 AMAQI
5th Aug 20253612 PMAQI
5th Aug 2025381 PMAQI
5th Aug 2025422 PMAQI
5th Aug 2025483 PMAQI
5th Aug 2025484 PMAQI
5th Aug 2025495 PMAQI
5th Aug 2025456 PMAQI
5th Aug 2025447 PMAQI
5th Aug 2025548 PMAQI
5th Aug 2025529 PMAQI
5th Aug 20255210 PMAQI
5th Aug 20255111 PMAQI
6th Aug 20255212 AMAQI
6th Aug 2025521 AMAQI
6th Aug 2025522 AMAQI
6th Aug 2025513 AMAQI
6th Aug 2025514 AMAQI
27°C25/30°C
6th Aug 2025515 AMAQI
5 AM6th Aug 2025526 AMAQI
6th Aug 2025517 AMAQI
6th Aug 2025378 AMAQI
6th Aug 2025459 AMAQI
6th Aug 20254810 AMAQI
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
51AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 AM - 6 PM
45AQI
11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 51), while the lowest AQI was between 8 AM to 6 PM (Avg. 45).
Night time
Avg. Highest Time
12 AM - 4 AM
51AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
7 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. 51), while the lowest AQI was between 7 PM to 7 PM (Avg. 47).
2025 Days Vs Air Quality
Mariano Marcos State University, Batac, Ilocos Norte, Philippines
2025
36%
78
64%
138
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
78 DaysModerate
138 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 36%
Health Risk Level:
High
In 2025, 36% of 218 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Mariano Marcos State University, Batac, Ilocos Norte, Philippines
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
93AQI
93AQI
2nd January 2025
78AQI
78AQI
3rd January 2025
79AQI
79AQI
4th January 2025
69AQI
69AQI
5th January 2025
67AQI
67AQI
6th January 2025
95AQI
95AQI
7th January 2025
83AQI
83AQI
8th January 2025
78AQI
78AQI
9th January 2025
79AQI
79AQI
10th January 2025
72AQI
72AQI
11th January 2025
67AQI
67AQI
12th January 2025
56AQI
56AQI
13th January 2025
65AQI
65AQI
14th January 2025
66AQI
66AQI
15th January 2025
69AQI
69AQI
16th January 2025
72AQI
72AQI
17th January 2025
73AQI
73AQI
18th January 2025
76AQI
76AQI
19th January 2025
65AQI
65AQI
20th January 2025
78AQI
78AQI
21st January 2025
79AQI
79AQI
22nd January 2025
83AQI
83AQI
23rd January 2025
80AQI
80AQI
24th January 2025
75AQI
75AQI
25th January 2025
72AQI
72AQI
26th January 2025
74AQI
74AQI
27th January 2025
65AQI
65AQI
28th January 2025
70AQI
70AQI
29th January 2025
70AQI
70AQI
30th January 2025
66AQI
66AQI
31st January 2025
73AQI
73AQI
1st February 2025
61AQI
61AQI
2nd February 2025
64AQI
64AQI
3rd February 2025
64AQI
64AQI
4th February 2025
65AQI
65AQI
5th February 2025
64AQI
64AQI
6th February 2025
66AQI
66AQI
7th February 2025
66AQI
66AQI
8th February 2025
59AQI
59AQI
9th February 2025
57AQI
57AQI
10th February 2025
60AQI
60AQI
11th February 2025
69AQI
69AQI
12th February 2025
66AQI
66AQI
13th February 2025
82AQI
82AQI
14th February 2025
70AQI
70AQI
15th February 2025
64AQI
64AQI
16th February 2025
66AQI
66AQI
17th February 2025
74AQI
74AQI
18th February 2025
85AQI
85AQI
19th February 2025
67AQI
67AQI
20th February 2025
68AQI
68AQI
21st February 2025
69AQI
69AQI
22nd February 2025
63AQI
63AQI
23rd February 2025
60AQI
60AQI
24th February 2025
60AQI
60AQI
25th February 2025
59AQI
59AQI
26th February 2025
69AQI
69AQI
27th February 2025
71AQI
71AQI
28th February 2025
65AQI
65AQI
1st March 2025
69AQI
69AQI
2nd March 2025
64AQI
64AQI
3rd March 2025
59AQI
59AQI
4th March 2025
54AQI
54AQI
5th March 2025
52AQI
52AQI
6th March 2025
43AQI
43AQI
7th March 2025
54AQI
54AQI
8th March 2025
51AQI
51AQI
9th March 2025
58AQI
58AQI
10th March 2025
64AQI
64AQI
11th March 2025
66AQI
66AQI
12th March 2025
64AQI
64AQI
13th March 2025
55AQI
55AQI
14th March 2025
58AQI
58AQI
15th March 2025
56AQI
56AQI
16th March 2025
54AQI
54AQI
17th March 2025
61AQI
61AQI
18th March 2025
66AQI
66AQI
19th March 2025
73AQI
73AQI
20th March 2025
82AQI
82AQI
21st March 2025
74AQI
74AQI
22nd March 2025
79AQI
79AQI
23rd March 2025
73AQI
73AQI
24th March 2025
80AQI
80AQI
25th March 2025
70AQI
70AQI
26th March 2025
57AQI
57AQI
27th March 2025
56AQI
56AQI
28th March 2025
54AQI
54AQI
29th March 2025
53AQI
53AQI
30th March 2025
37AQI
37AQI
31st March 2025
37AQI
37AQI
1st April 2025
41AQI
41AQI
2nd April 2025
52AQI
52AQI
3rd April 2025
55AQI
55AQI
4th April 2025
55AQI
55AQI
5th April 2025
60AQI
60AQI
6th April 2025
55AQI
55AQI
7th April 2025
61AQI
61AQI
8th April 2025
58AQI
58AQI
9th April 2025
59AQI
59AQI
10th April 2025
57AQI
57AQI
11th April 2025
54AQI
54AQI
12th April 2025
55AQI
55AQI
13th April 2025
90AQI
90AQI
14th April 2025
94AQI
94AQI
15th April 2025
92AQI
92AQI
16th April 2025
91AQI
91AQI
17th April 2025
81AQI
81AQI
18th April 2025
67AQI
67AQI
19th April 2025
58AQI
58AQI
20th April 2025
54AQI
54AQI
21st April 2025
56AQI
56AQI
22nd April 2025
54AQI
54AQI
23rd April 2025
49AQI
49AQI
24th April 2025
51AQI
51AQI
25th April 2025
46AQI
46AQI
26th April 2025
49AQI
49AQI
27th April 2025
44AQI
44AQI
28th April 2025
55AQI
55AQI
29th April 2025
54AQI
54AQI
30th April 2025
55AQI
55AQI
1st May 2025
56AQI
56AQI
2nd May 2025
58AQI
58AQI
3rd May 2025
58AQI
58AQI
4th May 2025
55AQI
55AQI
5th May 2025
59AQI
59AQI
6th May 2025
65AQI
65AQI
7th May 2025
63AQI
63AQI
8th May 2025
56AQI
56AQI
9th May 2025
52AQI
52AQI
10th May 2025
48AQI
48AQI
11th May 2025
46AQI
46AQI
12th May 2025
52AQI
52AQI
13th May 2025
52AQI
52AQI
14th May 2025
45AQI
45AQI
15th May 2025
47AQI
47AQI
16th May 2025
45AQI
45AQI
17th May 2025
46AQI
46AQI
18th May 2025
43AQI
43AQI
19th May 2025
43AQI
43AQI
20th May 2025
42AQI
42AQI
21st May 2025
40AQI
40AQI
22nd May 2025
38AQI
38AQI
23rd May 2025
33AQI
33AQI
24th May 2025
35AQI
35AQI
25th May 2025
44AQI
44AQI
26th May 2025
55AQI
55AQI
27th May 2025
47AQI
47AQI
28th May 2025
44AQI
44AQI
29th May 2025
43AQI
43AQI
30th May 2025
43AQI
43AQI
31st May 2025
51AQI
51AQI
1st June 2025
48AQI
48AQI
2nd June 2025
45AQI
45AQI
3rd June 2025
46AQI
46AQI
4th June 2025
47AQI
47AQI
5th June 2025
46AQI
46AQI
6th June 2025
49AQI
49AQI
7th June 2025
52AQI
52AQI
8th June 2025
45AQI
45AQI
9th June 2025
46AQI
46AQI
10th June 2025
48AQI
48AQI
11th June 2025
43AQI
43AQI
12th June 2025
39AQI
39AQI
13th June 2025
44AQI
44AQI
14th June 2025
44AQI
44AQI
15th June 2025
45AQI
45AQI
16th June 2025
50AQI
50AQI
17th June 2025
51AQI
51AQI
18th June 2025
55AQI
55AQI
19th June 2025
52AQI
52AQI
20th June 2025
52AQI
52AQI
21st June 2025
48AQI
48AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
48AQI
48AQI
24th June 2025
44AQI
44AQI
25th June 2025
46AQI
46AQI
26th June 2025
36AQI
36AQI
27th June 2025
32AQI
32AQI
28th June 2025
33AQI
33AQI
29th June 2025
37AQI
37AQI
30th June 2025
39AQI
39AQI
1st July 2025
38AQI
38AQI
2nd July 2025
36AQI
36AQI
3rd July 2025
39AQI
39AQI
4th July 2025
43AQI
43AQI
5th July 2025
42AQI
42AQI
6th July 2025
42AQI
42AQI
7th July 2025
43AQI
43AQI
8th July 2025
45AQI
45AQI
9th July 2025
46AQI
46AQI
10th July 2025
46AQI
46AQI
11th July 2025
45AQI
45AQI
12th July 2025
46AQI
46AQI
13th July 2025
50AQI
50AQI
14th July 2025
50AQI
50AQI
15th July 2025
50AQI
50AQI
16th July 2025
48AQI
48AQI
17th July 2025
50AQI
50AQI
18th July 2025
45AQI
45AQI
19th July 2025
45AQI
45AQI
20th July 2025
48AQI
48AQI
21st July 2025
48AQI
48AQI
22nd July 2025
44AQI
44AQI
23rd July 2025
47AQI
47AQI
24th July 2025
43AQI
43AQI
25th July 2025
42AQI
42AQI
26th July 2025
43AQI
43AQI
27th July 2025
45AQI
45AQI
28th July 2025
50AQI
50AQI
29th July 2025
51AQI
51AQI
30th July 2025
51AQI
51AQI
31st July 2025
52AQI
52AQI
1st August 2025
55AQI
55AQI
2nd August 2025
58AQI
58AQI
3rd August 2025
56AQI
56AQI
4th August 2025
53AQI
53AQI
74AQI
66AQI
60AQI
60AQI
49AQI
45AQI
46AQI
56AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202557AQI
31
28
3
28
5
25
18
13
24
6
28
3
4
78
138
Highest AQI recorded in
January74AQI
Lowest AQI recorded in
June45AQI
202440AQI
16
9
3
30
31
31
28
1
29
2
14
16
31
188
53
Highest AQI recorded in
December70AQI
Lowest AQI recorded in
January18AQI
202324AQI
11
1
28
12
3
3
1
3
10
3
31
101
5
Highest AQI recorded in
April40AQI
Lowest AQI recorded in
December18AQI
202222AQI
6
2
8
11
1
22
12
2
7
69
2
Highest AQI recorded in
November77AQI
Lowest AQI recorded in
May12AQI
202122AQI
5
25
1
26
1
25
1
23
22
18
23
29
27
7
230
3
Highest AQI recorded in
April28AQI
Lowest AQI recorded in
September18AQI
202028AQI
12
21
15
2
1
3
51
2
1
Highest AQI recorded in
May36AQI
Lowest AQI recorded in
June7AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
57AQILeast Polluted Year Recorded
2022(Avg.)
22AQIMariano Marcos State University's annual 2025 AQI (57) shows an average percentage change of 118.4% (worsened AQI) compared to previous years: 2020 (28), 2021 (22), 2022 (22), 2023 (24), 2024 (40).
