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Westlake Site, Sulphur, Louisiana, United States 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

Westlake Site, Sulphur, Louisiana, United States

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
9th Oct 2021
152AQI
Lowest AQI recorded on
16th Oct 2023
18AQI

Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025

Westlake Site, Sulphur, Louisiana, United States

AQI
Day
Night
.

6 AM3rd Oct 2025

7 PM

5 AM4th Oct 2025

Day time
Avg. Highest Time
8AM3rd Oct

60AQI

Avg. Lowest Time
3PM3rd Oct

56AQI

Night time
Avg. Highest Time
2AM4th Oct

65AQI

Avg. Lowest Time
6AM3rd Oct

44AQI

In the last 24 hours,

Westlake Site's AQI reached its highest point of 65 at 2 AM during the Night, while the lowest point, 44, was recorded at 6 AM during the Night between 3rd Oct and 4th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Westlake Site, Sulphur, Louisiana, United States

SepOct
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
4th Sep 2025336 AMAQI
4th Sep 2025307 AMAQI
4th Sep 2025288 AMAQI
4th Sep 2025289 AMAQI
4th Sep 20252410 AMAQI
4th Sep 20252911 AMAQI
4th Sep 20254512 PMAQI
4th Sep 2025451 PMAQI
4th Sep 2025432 PMAQI
4th Sep 2025423 PMAQI
4th Sep 2025424 PMAQI
4th Sep 2025425 PMAQI
4th Sep 2025406 PMAQI
4th Sep 2025407 PMAQI
4th Sep 2025408 PMAQI
4th Sep 2025409 PMAQI
4th Sep 20253910 PMAQI
4th Sep 20254111 PMAQI
5th Sep 20254212 AMAQI
5th Sep 2025421 AMAQI
5th Sep 2025412 AMAQI
5th Sep 2025413 AMAQI
5th Sep 2025384 AMAQI
5th Sep 2025355 AMAQI

28°C23/36°C

5th Sep 2025376 AMAQI
5th Sep 2025437 AMAQI
5th Sep 2025448 AMAQI
5th Sep 2025439 AMAQI
5th Sep 20254210 AMAQI
5th Sep 20254011 AMAQI
5th Sep 20254512 PMAQI
5th Sep 2025461 PMAQI
5th Sep 2025382 PMAQI
5th Sep 2025353 PMAQI
5th Sep 2025374 PMAQI
5th Sep 2025365 PMAQI
5th Sep 2025426 PMAQI
5th Sep 2025417 PMAQI
5th Sep 2025378 PMAQI
5th Sep 2025339 PMAQI
5th Sep 20252910 PMAQI
5th Sep 20252811 PMAQI
6th Sep 20252812 AMAQI
6th Sep 2025291 AMAQI
6th Sep 2025282 AMAQI
6th Sep 2025293 AMAQI
6th Sep 2025294 AMAQI
6th Sep 2025305 AMAQI

28°C24/32°C

6th Sep 2025336 AMAQI
6th Sep 2025367 AMAQI
6th Sep 2025378 AMAQI
6th Sep 2025379 AMAQI
6th Sep 20253710 AMAQI
6th Sep 20253511 AMAQI
6th Sep 20253212 PMAQI
6th Sep 2025321 PMAQI
6th Sep 2025372 PMAQI
6th Sep 2025373 PMAQI
6th Sep 2025384 PMAQI
6th Sep 2025385 PMAQI
6th Sep 2025386 PMAQI
6th Sep 2025347 PMAQI
6th Sep 2025368 PMAQI
6th Sep 2025399 PMAQI
6th Sep 20253910 PMAQI
6th Sep 20254011 PMAQI
7th Sep 20254212 AMAQI
7th Sep 2025461 AMAQI
7th Sep 2025492 AMAQI
7th Sep 2025523 AMAQI
7th Sep 2025524 AMAQI
7th Sep 2025535 AMAQI

29°C23/34°C

7th Sep 2025526 AMAQI
7th Sep 2025527 AMAQI
7th Sep 2025528 AMAQI
7th Sep 2025529 AMAQI
7th Sep 20255210 AMAQI
7th Sep 20255111 AMAQI
7th Sep 20255012 PMAQI
7th Sep 2025461 PMAQI
7th Sep 2025432 PMAQI
7th Sep 2025463 PMAQI
7th Sep 2025464 PMAQI
7th Sep 2025455 PMAQI
7th Sep 2025426 PMAQI
7th Sep 2025477 PMAQI
7th Sep 2025468 PMAQI
7th Sep 2025439 PMAQI
7th Sep 20254210 PMAQI
7th Sep 20254311 PMAQI
8th Sep 20254212 AMAQI
8th Sep 2025421 AMAQI
8th Sep 2025432 AMAQI
8th Sep 2025443 AMAQI
8th Sep 2025434 AMAQI
8th Sep 2025435 AMAQI

25°C20/31°C

8th Sep 2025486 AMAQI
8th Sep 2025487 AMAQI
8th Sep 2025478 AMAQI
8th Sep 2025389 AMAQI
8th Sep 20253410 AMAQI
8th Sep 20253811 AMAQI
8th Sep 20253512 PMAQI
8th Sep 2025341 PMAQI
8th Sep 2025342 PMAQI
8th Sep 2025373 PMAQI
8th Sep 2025424 PMAQI
8th Sep 2025445 PMAQI
8th Sep 2025426 PMAQI
8th Sep 2025417 PMAQI
8th Sep 2025418 PMAQI
8th Sep 2025429 PMAQI
8th Sep 20254310 PMAQI
8th Sep 20254811 PMAQI
9th Sep 20255012 AMAQI
9th Sep 2025541 AMAQI
9th Sep 2025522 AMAQI
9th Sep 2025533 AMAQI
9th Sep 2025534 AMAQI
9th Sep 2025505 AMAQI

25°C19/32°C

9th Sep 2025516 AMAQI
9th Sep 2025517 AMAQI
9th Sep 2025518 AMAQI
9th Sep 2025519 AMAQI
9th Sep 20255110 AMAQI
9th Sep 20255311 AMAQI
9th Sep 20255512 PMAQI
9th Sep 2025551 PMAQI
9th Sep 2025542 PMAQI
9th Sep 2025533 PMAQI
9th Sep 2025524 PMAQI
9th Sep 2025515 PMAQI
9th Sep 2025506 PMAQI
9th Sep 2025517 PMAQI
9th Sep 2025528 PMAQI
9th Sep 2025529 PMAQI
9th Sep 20255110 PMAQI
9th Sep 20255411 PMAQI
10th Sep 20255312 AMAQI
10th Sep 2025531 AMAQI
10th Sep 2025542 AMAQI
10th Sep 2025583 AMAQI
10th Sep 2025604 AMAQI
10th Sep 2025595 AMAQI

24°C16/32°C

10th Sep 2025606 AMAQI
10th Sep 2025627 AMAQI
10th Sep 2025628 AMAQI
10th Sep 2025659 AMAQI
10th Sep 20256910 AMAQI
10th Sep 20257111 AMAQI
10th Sep 20255912 PMAQI
10th Sep 2025541 PMAQI
10th Sep 2025482 PMAQI
10th Sep 2025433 PMAQI
10th Sep 2025424 PMAQI
10th Sep 2025485 PMAQI
10th Sep 2025466 PMAQI
10th Sep 2025547 PMAQI
10th Sep 2025508 PMAQI
10th Sep 2025469 PMAQI
10th Sep 20254410 PMAQI
10th Sep 20254011 PMAQI
11th Sep 20254012 AMAQI
11th Sep 2025381 AMAQI
11th Sep 2025382 AMAQI
11th Sep 2025403 AMAQI
11th Sep 2025424 AMAQI
11th Sep 2025445 AMAQI

27°C19/35°C

11th Sep 2025466 AMAQI
11th Sep 2025477 AMAQI
11th Sep 2025488 AMAQI
11th Sep 2025479 AMAQI
11th Sep 20254610 AMAQI
11th Sep 20254411 AMAQI
11th Sep 20254612 PMAQI
11th Sep 2025511 PMAQI
11th Sep 2025522 PMAQI
11th Sep 2025533 PMAQI
11th Sep 2025554 PMAQI
11th Sep 2025555 PMAQI
11th Sep 2025566 PMAQI
11th Sep 2025457 PMAQI
11th Sep 2025518 PMAQI
11th Sep 2025549 PMAQI
11th Sep 20255510 PMAQI
11th Sep 20255611 PMAQI
12th Sep 20255612 AMAQI
12th Sep 2025561 AMAQI
12th Sep 2025542 AMAQI
12th Sep 2025563 AMAQI
12th Sep 2025554 AMAQI
12th Sep 2025565 AMAQI

29°C21/36°C

12th Sep 2025576 AMAQI
12th Sep 2025587 AMAQI
12th Sep 2025608 AMAQI
12th Sep 2025619 AMAQI
12th Sep 20256110 AMAQI
12th Sep 20256011 AMAQI
12th Sep 20256112 PMAQI
12th Sep 2025611 PMAQI
12th Sep 2025612 PMAQI
12th Sep 2025613 PMAQI
12th Sep 2025604 PMAQI
12th Sep 2025625 PMAQI
12th Sep 2025626 PMAQI
12th Sep 2025597 PMAQI
12th Sep 2025618 PMAQI
12th Sep 2025609 PMAQI
12th Sep 20256010 PMAQI
12th Sep 20255811 PMAQI
13th Sep 20255812 AMAQI
13th Sep 2025601 AMAQI
13th Sep 2025592 AMAQI
13th Sep 2025583 AMAQI
13th Sep 2025564 AMAQI
13th Sep 2025555 AMAQI

29°C21/36°C

13th Sep 2025606 AMAQI
13th Sep 2025607 AMAQI
13th Sep 2025618 AMAQI
13th Sep 2025629 AMAQI
13th Sep 20256410 AMAQI
13th Sep 20256411 AMAQI
13th Sep 20256312 PMAQI
13th Sep 2025631 PMAQI
13th Sep 2025622 PMAQI
13th Sep 2025633 PMAQI
13th Sep 2025624 PMAQI
13th Sep 2025625 PMAQI
13th Sep 2025626 PMAQI
13th Sep 2025617 PMAQI
13th Sep 2025608 PMAQI
13th Sep 2025609 PMAQI
13th Sep 20255810 PMAQI
13th Sep 20255811 PMAQI
14th Sep 20255912 AMAQI
14th Sep 2025591 AMAQI
14th Sep 2025592 AMAQI
14th Sep 2025603 AMAQI
14th Sep 2025604 AMAQI
14th Sep 2025605 AMAQI

29°C22/37°C

14th Sep 2025606 AMAQI
14th Sep 2025597 AMAQI
14th Sep 2025598 AMAQI
14th Sep 2025609 AMAQI
14th Sep 20256210 AMAQI
14th Sep 20256411 AMAQI
14th Sep 20256212 PMAQI
14th Sep 2025621 PMAQI
14th Sep 2025622 PMAQI
14th Sep 2025613 PMAQI
14th Sep 2025644 PMAQI
14th Sep 2025595 PMAQI
14th Sep 2025586 PMAQI
14th Sep 2025607 PMAQI
14th Sep 2025598 PMAQI
14th Sep 2025609 PMAQI
14th Sep 20255810 PMAQI
14th Sep 20255711 PMAQI
15th Sep 20255812 AMAQI
15th Sep 2025581 AMAQI
15th Sep 2025532 AMAQI
15th Sep 2025563 AMAQI
15th Sep 2025564 AMAQI
15th Sep 2025595 AMAQI

27°C22/33°C

15th Sep 2025626 AMAQI
15th Sep 2025567 AMAQI
15th Sep 2025508 AMAQI
15th Sep 2025679 AMAQI
15th Sep 20256110 AMAQI
15th Sep 20256011 AMAQI
15th Sep 20255612 PMAQI
15th Sep 2025541 PMAQI
15th Sep 2025542 PMAQI
15th Sep 2025553 PMAQI
15th Sep 2025564 PMAQI
15th Sep 2025565 PMAQI
15th Sep 2025566 PMAQI
15th Sep 2025567 PMAQI
15th Sep 2025578 PMAQI
15th Sep 2025569 PMAQI
15th Sep 20255610 PMAQI
15th Sep 20255611 PMAQI
16th Sep 20255612 AMAQI
16th Sep 2025571 AMAQI
16th Sep 2025542 AMAQI
16th Sep 2025543 AMAQI
16th Sep 2025534 AMAQI
16th Sep 2025565 AMAQI

27°C22/33°C

16th Sep 2025566 AMAQI
16th Sep 2025587 AMAQI
16th Sep 2025608 AMAQI
16th Sep 2025609 AMAQI
16th Sep 20255810 AMAQI
16th Sep 20255611 AMAQI
16th Sep 20255612 PMAQI
16th Sep 2025561 PMAQI
16th Sep 2025562 PMAQI
16th Sep 2025573 PMAQI
16th Sep 2025584 PMAQI
16th Sep 2025585 PMAQI
16th Sep 2025586 PMAQI
16th Sep 2025577 PMAQI
16th Sep 2025568 PMAQI
16th Sep 2025579 PMAQI
16th Sep 20255810 PMAQI
16th Sep 20255811 PMAQI
17th Sep 20255812 AMAQI
17th Sep 2025581 AMAQI
17th Sep 2025572 AMAQI
17th Sep 2025573 AMAQI
17th Sep 2025574 AMAQI
17th Sep 2025575 AMAQI

29°C22/36°C

17th Sep 2025596 AMAQI
17th Sep 2025597 AMAQI
17th Sep 2025608 AMAQI
17th Sep 2025609 AMAQI
17th Sep 20255910 AMAQI
17th Sep 20255811 AMAQI
17th Sep 20255712 PMAQI
17th Sep 2025571 PMAQI
17th Sep 2025582 PMAQI
17th Sep 2025593 PMAQI
17th Sep 2025594 PMAQI
17th Sep 2025595 PMAQI
17th Sep 2025586 PMAQI
17th Sep 2025587 PMAQI
17th Sep 2025588 PMAQI
17th Sep 2025579 PMAQI
17th Sep 20255810 PMAQI
17th Sep 20255811 PMAQI
18th Sep 20255712 AMAQI
18th Sep 2025541 AMAQI
18th Sep 2025512 AMAQI
18th Sep 2025513 AMAQI
18th Sep 2025544 AMAQI
18th Sep 2025545 AMAQI

29°C23/36°C

18th Sep 2025576 AMAQI
18th Sep 2025557 AMAQI
18th Sep 2025568 AMAQI
18th Sep 2025569 AMAQI
18th Sep 20255610 AMAQI
18th Sep 20255411 AMAQI
18th Sep 20255312 PMAQI
18th Sep 2025521 PMAQI
18th Sep 2025522 PMAQI
18th Sep 2025543 PMAQI
18th Sep 2025544 PMAQI
18th Sep 2025545 PMAQI
18th Sep 2025536 PMAQI
18th Sep 2025547 PMAQI
18th Sep 2025538 PMAQI
18th Sep 2025529 PMAQI
18th Sep 20255210 PMAQI
18th Sep 20255211 PMAQI
19th Sep 20255212 AMAQI
19th Sep 2025471 AMAQI
19th Sep 2025322 AMAQI
19th Sep 2025343 AMAQI
19th Sep 2025364 AMAQI
19th Sep 2025375 AMAQI

27°C20/35°C

19th Sep 2025406 AMAQI
19th Sep 2025427 AMAQI
19th Sep 2025438 AMAQI
19th Sep 2025469 AMAQI
19th Sep 20254210 AMAQI
19th Sep 20253811 AMAQI
19th Sep 20253612 PMAQI
19th Sep 2025361 PMAQI
19th Sep 2025382 PMAQI
19th Sep 2025413 PMAQI
19th Sep 2025404 PMAQI
19th Sep 2025395 PMAQI
19th Sep 2025406 PMAQI
19th Sep 2025407 PMAQI
19th Sep 2025398 PMAQI
19th Sep 2025389 PMAQI
19th Sep 20253810 PMAQI
19th Sep 20253711 PMAQI
20th Sep 20253812 AMAQI
20th Sep 2025341 AMAQI
20th Sep 2025232 AMAQI
20th Sep 2025233 AMAQI
20th Sep 2025274 AMAQI
20th Sep 2025305 AMAQI

27°C20/34°C

20th Sep 2025346 AMAQI
20th Sep 2025337 AMAQI
20th Sep 2025348 AMAQI
20th Sep 2025349 AMAQI
20th Sep 20253410 AMAQI
20th Sep 20253211 AMAQI
20th Sep 20252812 PMAQI
20th Sep 2025301 PMAQI
20th Sep 2025312 PMAQI
20th Sep 2025313 PMAQI
20th Sep 2025324 PMAQI
20th Sep 2025315 PMAQI
20th Sep 2025316 PMAQI
20th Sep 2025317 PMAQI
20th Sep 2025318 PMAQI
20th Sep 2025309 PMAQI
20th Sep 20253010 PMAQI
20th Sep 20253011 PMAQI
21st Sep 20253012 AMAQI
21st Sep 2025311 AMAQI
21st Sep 2025272 AMAQI
21st Sep 2025273 AMAQI
21st Sep 2025284 AMAQI
21st Sep 2025275 AMAQI

26°C19/31°C

21st Sep 2025286 AMAQI
21st Sep 2025307 AMAQI
21st Sep 2025308 AMAQI
21st Sep 2025309 AMAQI
21st Sep 20252910 AMAQI
21st Sep 20252511 AMAQI
21st Sep 20252312 PMAQI
21st Sep 2025241 PMAQI
21st Sep 2025262 PMAQI
21st Sep 2025293 PMAQI
21st Sep 2025274 PMAQI
21st Sep 2025285 PMAQI
21st Sep 2025286 PMAQI
21st Sep 2025297 PMAQI
21st Sep 2025298 PMAQI
21st Sep 2025299 PMAQI
21st Sep 20252910 PMAQI
21st Sep 20253011 PMAQI
22nd Sep 20253012 AMAQI
22nd Sep 2025281 AMAQI
22nd Sep 2025262 AMAQI
22nd Sep 2025243 AMAQI
22nd Sep 2025304 AMAQI
22nd Sep 2025305 AMAQI

25°C22/31°C

22nd Sep 2025326 AMAQI
22nd Sep 2025327 AMAQI
22nd Sep 2025348 AMAQI
22nd Sep 2025349 AMAQI
22nd Sep 20253410 AMAQI
22nd Sep 20253411 AMAQI
22nd Sep 20253212 PMAQI
22nd Sep 2025311 PMAQI
22nd Sep 2025312 PMAQI
22nd Sep 2025303 PMAQI
22nd Sep 2025304 PMAQI
22nd Sep 2025305 PMAQI
22nd Sep 2025306 PMAQI
22nd Sep 2025297 PMAQI
22nd Sep 2025288 PMAQI
22nd Sep 2025289 PMAQI
22nd Sep 20252910 PMAQI
22nd Sep 20252811 PMAQI
23rd Sep 20252812 AMAQI
23rd Sep 2025281 AMAQI
23rd Sep 2025242 AMAQI
23rd Sep 2025223 AMAQI
23rd Sep 2025234 AMAQI
23rd Sep 2025225 AMAQI

28°C23/35°C

23rd Sep 2025226 AMAQI
23rd Sep 2025247 AMAQI
23rd Sep 2025268 AMAQI
23rd Sep 2025249 AMAQI
23rd Sep 20252410 AMAQI
23rd Sep 20252211 AMAQI
23rd Sep 20252312 PMAQI
23rd Sep 2025221 PMAQI
23rd Sep 2025232 PMAQI
23rd Sep 2025233 PMAQI
23rd Sep 2025234 PMAQI
23rd Sep 2025225 PMAQI
23rd Sep 2025236 PMAQI
23rd Sep 2025237 PMAQI
23rd Sep 2025248 PMAQI
23rd Sep 2025249 PMAQI
23rd Sep 20252410 PMAQI
23rd Sep 20252311 PMAQI
24th Sep 20252312 AMAQI
24th Sep 2025221 AMAQI
24th Sep 2025222 AMAQI
24th Sep 2025213 AMAQI
24th Sep 2025224 AMAQI
24th Sep 2025245 AMAQI

27°C24/33°C

24th Sep 2025226 AMAQI
24th Sep 2025227 AMAQI
24th Sep 2025228 AMAQI
24th Sep 2025239 AMAQI
24th Sep 20252210 AMAQI
24th Sep 20252211 AMAQI
24th Sep 20252312 PMAQI
24th Sep 2025231 PMAQI
24th Sep 2025232 PMAQI
24th Sep 2025233 PMAQI
24th Sep 2025224 PMAQI
24th Sep 2025225 PMAQI
24th Sep 2025226 PMAQI
24th Sep 2025227 PMAQI
24th Sep 2025228 PMAQI
24th Sep 2025229 PMAQI
24th Sep 20252210 PMAQI
24th Sep 20252211 PMAQI
25th Sep 20252612 AMAQI
25th Sep 2025281 AMAQI
25th Sep 2025262 AMAQI
25th Sep 2025243 AMAQI
25th Sep 2025224 AMAQI
25th Sep 2025225 AMAQI

27°C25/31°C

25th Sep 2025316 AMAQI
25th Sep 2025287 AMAQI
25th Sep 2025238 AMAQI
25th Sep 2025229 AMAQI
25th Sep 20252210 AMAQI
25th Sep 20252211 AMAQI
25th Sep 20252212 PMAQI
25th Sep 2025201 PMAQI
25th Sep 2025172 PMAQI
25th Sep 2025173 PMAQI
25th Sep 2025204 PMAQI
25th Sep 2025225 PMAQI
25th Sep 2025236 PMAQI
25th Sep 2025287 PMAQI
25th Sep 2025248 PMAQI
25th Sep 2025229 PMAQI
25th Sep 20252510 PMAQI
25th Sep 20253011 PMAQI
26th Sep 20253812 AMAQI
26th Sep 2025431 AMAQI
26th Sep 2025452 AMAQI
26th Sep 2025483 AMAQI
26th Sep 2025524 AMAQI
26th Sep 2025545 AMAQI

27°C24/33°C

26th Sep 2025556 AMAQI
26th Sep 2025527 AMAQI
26th Sep 2025538 AMAQI
26th Sep 2025469 AMAQI
26th Sep 20254110 AMAQI
26th Sep 20253511 AMAQI
26th Sep 20252612 PMAQI
26th Sep 2025221 PMAQI
26th Sep 2025202 PMAQI
26th Sep 2025203 PMAQI
26th Sep 2025224 PMAQI
26th Sep 2025225 PMAQI
26th Sep 2025226 PMAQI
26th Sep 2025237 PMAQI
26th Sep 2025248 PMAQI
26th Sep 2025319 PMAQI
26th Sep 20253010 PMAQI
26th Sep 20253111 PMAQI
27th Sep 20253312 AMAQI
27th Sep 2025351 AMAQI
27th Sep 2025352 AMAQI
27th Sep 2025333 AMAQI
27th Sep 2025354 AMAQI
27th Sep 2025395 AMAQI

25°C19/32°C

27th Sep 2025396 AMAQI
27th Sep 2025397 AMAQI
27th Sep 2025398 AMAQI
27th Sep 2025379 AMAQI
27th Sep 20253310 AMAQI
27th Sep 20253311 AMAQI
27th Sep 20253312 PMAQI
27th Sep 2025291 PMAQI
27th Sep 2025222 PMAQI
27th Sep 2025223 PMAQI
27th Sep 2025224 PMAQI
27th Sep 2025225 PMAQI
27th Sep 2025266 PMAQI
27th Sep 2025287 PMAQI
27th Sep 2025288 PMAQI
27th Sep 2025359 PMAQI
27th Sep 20253910 PMAQI
27th Sep 20253711 PMAQI
28th Sep 20253512 AMAQI
28th Sep 2025391 AMAQI
28th Sep 2025412 AMAQI
28th Sep 2025443 AMAQI
28th Sep 2025424 AMAQI
28th Sep 2025455 AMAQI

25°C18/33°C

28th Sep 2025506 AMAQI
28th Sep 2025497 AMAQI
28th Sep 2025488 AMAQI
28th Sep 2025449 AMAQI
28th Sep 20254210 AMAQI
28th Sep 20253511 AMAQI
28th Sep 20253212 PMAQI
28th Sep 2025301 PMAQI
28th Sep 2025282 PMAQI
28th Sep 2025283 PMAQI
28th Sep 2025284 PMAQI
28th Sep 2025335 PMAQI
28th Sep 2025346 PMAQI
28th Sep 2025337 PMAQI
28th Sep 2025338 PMAQI
28th Sep 2025379 PMAQI
28th Sep 20254810 PMAQI
28th Sep 20255011 PMAQI
29th Sep 20255312 AMAQI
29th Sep 2025471 AMAQI
29th Sep 2025422 AMAQI
29th Sep 2025493 AMAQI
29th Sep 2025354 AMAQI
29th Sep 2025515 AMAQI

25°C17/33°C

29th Sep 2025576 AMAQI
29th Sep 2025557 AMAQI
29th Sep 2025508 AMAQI
29th Sep 2025429 AMAQI
29th Sep 20254910 AMAQI
29th Sep 20254311 AMAQI
29th Sep 20254412 PMAQI
29th Sep 2025381 PMAQI
29th Sep 2025362 PMAQI
29th Sep 2025313 PMAQI
29th Sep 2025364 PMAQI
29th Sep 2025325 PMAQI
29th Sep 2025296 PMAQI
29th Sep 2025217 PMAQI
29th Sep 2025168 PMAQI
29th Sep 2025189 PMAQI
29th Sep 20251910 PMAQI
29th Sep 20252111 PMAQI
30th Sep 20254612 AMAQI
30th Sep 2025621 AMAQI
30th Sep 2025562 AMAQI
30th Sep 2025573 AMAQI
30th Sep 2025534 AMAQI
30th Sep 2025695 AMAQI

26°C18/35°C

30th Sep 2025686 AMAQI
30th Sep 2025647 AMAQI
30th Sep 2025538 AMAQI
30th Sep 2025539 AMAQI
30th Sep 20254810 AMAQI
30th Sep 20255611 AMAQI
30th Sep 20255012 PMAQI
30th Sep 2025531 PMAQI
30th Sep 2025502 PMAQI
30th Sep 2025463 PMAQI
30th Sep 2025454 PMAQI
30th Sep 2025315 PMAQI
30th Sep 2025366 PMAQI
30th Sep 2025427 PMAQI
30th Sep 2025488 PMAQI
30th Sep 2025489 PMAQI
30th Sep 20254810 PMAQI
30th Sep 20255411 PMAQI
1st Oct 20255312 AMAQI
1st Oct 2025531 AMAQI
1st Oct 2025602 AMAQI
1st Oct 2025673 AMAQI
1st Oct 2025904 AMAQI
1st Oct 20251045 AMAQI

27°C20/36°C

1st Oct 20251086 AMAQI
1st Oct 20251027 AMAQI
1st Oct 2025858 AMAQI
1st Oct 2025739 AMAQI
1st Oct 20256710 AMAQI
1st Oct 20256511 AMAQI
1st Oct 20256412 PMAQI
1st Oct 2025631 PMAQI
1st Oct 2025602 PMAQI
1st Oct 2025563 PMAQI
1st Oct 2025564 PMAQI
1st Oct 2025585 PMAQI
1st Oct 2025546 PMAQI
1st Oct 2025557 PMAQI
1st Oct 2025568 PMAQI
1st Oct 2025579 PMAQI
1st Oct 20255810 PMAQI
1st Oct 20256111 PMAQI
2nd Oct 20256512 AMAQI
2nd Oct 2025661 AMAQI
2nd Oct 2025712 AMAQI
2nd Oct 2025733 AMAQI
2nd Oct 2025754 AMAQI
2nd Oct 2025805 AMAQI

27°C20/35°C

2nd Oct 2025826 AMAQI
2nd Oct 2025867 AMAQI
2nd Oct 2025838 AMAQI
2nd Oct 2025799 AMAQI
2nd Oct 20257410 AMAQI
2nd Oct 20257311 AMAQI
2nd Oct 20256412 PMAQI
2nd Oct 2025611 PMAQI
2nd Oct 2025572 PMAQI
2nd Oct 2025553 PMAQI
2nd Oct 2025554 PMAQI
2nd Oct 2025565 PMAQI
2nd Oct 2025616 PMAQI
2nd Oct 2025627 PMAQI
2nd Oct 2025548 PMAQI
2nd Oct 2025389 PMAQI
2nd Oct 20254510 PMAQI
2nd Oct 20254311 PMAQI
3rd Oct 20254912 AMAQI
3rd Oct 2025441 AMAQI
3rd Oct 2025492 AMAQI
3rd Oct 2025473 AMAQI
3rd Oct 2025514 AMAQI
3rd Oct 2025515 AMAQI

26°C19/35°C

3rd Oct 2025446 AMAQI
3rd Oct 2025597 AMAQI
3rd Oct 2025608 AMAQI
3rd Oct 2025599 AMAQI
3rd Oct 20255910 AMAQI
3rd Oct 20255911 AMAQI
3rd Oct 20256012 PMAQI
3rd Oct 2025571 PMAQI
3rd Oct 2025572 PMAQI
3rd Oct 2025563 PMAQI
3rd Oct 2025574 PMAQI
3rd Oct 2025575 PMAQI
3rd Oct 2025576 PMAQI
3rd Oct 2025567 PMAQI
3rd Oct 2025568 PMAQI
3rd Oct 2025559 PMAQI
3rd Oct 20255610 PMAQI
3rd Oct 20255811 PMAQI
4th Oct 20256012 AMAQI
4th Oct 2025621 AMAQI
4th Oct 2025652 AMAQI
4th Oct 2025653 AMAQI
4th Oct 2025634 AMAQI
4th Oct 2025655 AMAQI

25°C21/32°C

4th Oct 2025646 AMAQI
6 AM
4th Oct 2025647 AMAQI
4th Oct 2025638 AMAQI
4th Oct 2025639 AMAQI
4th Oct 20255710 AMAQI
4th Oct 20255611 AMAQI
4th Oct 20255312 PMAQI
12 PM
4th Oct 2025521 PMAQI
7 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 1 PM

47AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
2 PM - 7 PM

43AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 1 PM (Avg. 47), while the lowest AQI was between 2 PM to 7 PM (Avg. 43).
Night time
Avg. Highest Time
5 AM

48AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
8 PM - 11 PM

43AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 5 AM (Avg. 48), while the lowest AQI was between 8 PM to 11 PM (Avg. 43).

2025 Days Vs Air Quality

Westlake Site, Sulphur, Louisiana, United States

2025

86%

236

14%

40

Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)

Good
236 Days
Moderate
40 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 86%

Health Risk Level:

Low

In 2025, 86% of 277 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.

Annual Air Quality Insights

Westlake Site, Sulphur, Louisiana, United States

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
33AQI
2nd January 2025
36AQI
3rd January 2025
45AQI
4th January 2025
32AQI
5th January 2025
28AQI
6th January 2025
22AQI
7th January 2025
23AQI
8th January 2025
28AQI
9th January 2025
34AQI
10th January 2025
20AQI
11th January 2025
28AQI
12th January 2025
30AQI
13th January 2025
24AQI
14th January 2025
22AQI
15th January 2025
22AQI
16th January 2025
27AQI
17th January 2025
34AQI
18th January 2025
37AQI
19th January 2025
20AQI
20th January 2025
19AQI
21st January 2025
20AQI
22nd January 2025
26AQI
23rd January 2025
29AQI
24th January 2025
30AQI
25th January 2025
22AQI
26th January 2025
26AQI
27th January 2025
22AQI
28th January 2025
35AQI
29th January 2025
37AQI
30th January 2025
33AQI
31st January 2025
29AQI
1st February 2025
29AQI
2nd February 2025
38AQI
3rd February 2025
33AQI
4th February 2025
30AQI
5th February 2025
30AQI
6th February 2025
32AQI
7th February 2025
32AQI
8th February 2025
38AQI
9th February 2025
31AQI
10th February 2025
43AQI
11th February 2025
40AQI
12th February 2025
36AQI
13th February 2025
26AQI
14th February 2025
27AQI
15th February 2025
41AQI
16th February 2025
34AQI
17th February 2025
45AQI
18th February 2025
46AQI
19th February 2025
26AQI
20th February 2025
25AQI
21st February 2025
22AQI
22nd February 2025
27AQI
23rd February 2025
34AQI
24th February 2025
24AQI
25th February 2025
32AQI
26th February 2025
29AQI
27th February 2025
37AQI
28th February 2025
49AQI
1st March 2025
41AQI
2nd March 2025
34AQI
3rd March 2025
33AQI
4th March 2025
46AQI
5th March 2025
39AQI
6th March 2025
21AQI
7th March 2025
32AQI
8th March 2025
35AQI
9th March 2025
29AQI
10th March 2025
36AQI
11th March 2025
38AQI
12th March 2025
36AQI
13th March 2025
49AQI
14th March 2025
57AQI
15th March 2025
76AQI
16th March 2025
31AQI
17th March 2025
31AQI
18th March 2025
26AQI
19th March 2025
42AQI
20th March 2025
23AQI
21st March 2025
34AQI
22nd March 2025
38AQI
23rd March 2025
39AQI
24th March 2025
37AQI
25th March 2025
35AQI
26th March 2025
50AQI
27th March 2025
38AQI
28th March 2025
41AQI
29th March 2025
32AQI
30th March 2025
49AQI
31st March 2025
43AQI
1st April 2025
52AQI
2nd April 2025
51AQI
3rd April 2025
54AQI
4th April 2025
51AQI
5th April 2025
55AQI
6th April 2025
19AQI
7th April 2025
18AQI
8th April 2025
27AQI
9th April 2025
28AQI
10th April 2025
28AQI
11th April 2025
34AQI
12th April 2025
39AQI
13th April 2025
35AQI
14th April 2025
32AQI
15th April 2025
37AQI
16th April 2025
60AQI
17th April 2025
40AQI
18th April 2025
40AQI
19th April 2025
47AQI
20th April 2025
50AQI
21st April 2025
52AQI
22nd April 2025
43AQI
23rd April 2025
42AQI
24th April 2025
40AQI
25th April 2025
52AQI
26th April 2025
39AQI
27th April 2025
32AQI
28th April 2025
28AQI
29th April 2025
29AQI
30th April 2025
38AQI
1st May 2025
34AQI
2nd May 2025
34AQI
3rd May 2025
21AQI
4th May 2025
21AQI
5th May 2025
23AQI
6th May 2025
32AQI
7th May 2025
25AQI
8th May 2025
30AQI
9th May 2025
25AQI
10th May 2025
30AQI
11th May 2025
22AQI
12th May 2025
22AQI
13th May 2025
29AQI
14th May 2025
41AQI
15th May 2025
43AQI
16th May 2025
43AQI
17th May 2025
41AQI
18th May 2025
36AQI
19th May 2025
40AQI
20th May 2025
42AQI
21st May 2025
34AQI
22nd May 2025
35AQI
23rd May 2025
32AQI
24th May 2025
34AQI
25th May 2025
44AQI
26th May 2025
35AQI
27th May 2025
24AQI
28th May 2025
27AQI
29th May 2025
27AQI
30th May 2025
32AQI
31st May 2025
32AQI
1st June 2025
35AQI
2nd June 2025
38AQI
3rd June 2025
32AQI
4th June 2025
30AQI
5th June 2025
33AQI
6th June 2025
44AQI
7th June 2025
63AQI
8th June 2025
39AQI
9th June 2025
37AQI
10th June 2025
47AQI
11th June 2025
28AQI
12th June 2025
23AQI
13th June 2025
25AQI
14th June 2025
40AQI
15th June 2025
43AQI
16th June 2025
29AQI
17th June 2025
38AQI
18th June 2025
51AQI
19th June 2025
44AQI
20th June 2025
48AQI
21st June 2025
54AQI
22nd June 2025
54AQI
23rd June 2025
30AQI
24th June 2025
25AQI
25th June 2025
25AQI
26th June 2025
28AQI
27th June 2025
26AQI
28th June 2025
26AQI
29th June 2025
35AQI
30th June 2025
49AQI
1st July 2025
61AQI
2nd July 2025
62AQI
3rd July 2025
60AQI
4th July 2025
51AQI
5th July 2025
62AQI
6th July 2025
56AQI
7th July 2025
55AQI
8th July 2025
40AQI
9th July 2025
31AQI
10th July 2025
35AQI
11th July 2025
47AQI
12th July 2025
43AQI
13th July 2025
30AQI
14th July 2025
28AQI
15th July 2025
36AQI
16th July 2025
46AQI
17th July 2025
51AQI
18th July 2025
48AQI
19th July 2025
35AQI
20th July 2025
40AQI
21st July 2025
32AQI
22nd July 2025
29AQI
23rd July 2025
30AQI
24th July 2025
28AQI
25th July 2025
35AQI
26th July 2025
22AQI
27th July 2025
30AQI
28th July 2025
50AQI
29th July 2025
55AQI
30th July 2025
57AQI
31st July 2025
42AQI
1st August 2025
45AQI
2nd August 2025
40AQI
3rd August 2025
41AQI
4th August 2025
54AQI
5th August 2025
53AQI
6th August 2025
41AQI
7th August 2025
28AQI
8th August 2025
34AQI
9th August 2025
29AQI
10th August 2025
28AQI
11th August 2025
34AQI
12th August 2025
27AQI
13th August 2025
29AQI
14th August 2025
29AQI
15th August 2025
34AQI
16th August 2025
28AQI
17th August 2025
38AQI
18th August 2025
41AQI
19th August 2025
43AQI
20th August 2025
50AQI
21st August 2025
48AQI
22nd August 2025
43AQI
23rd August 2025
41AQI
24th August 2025
49AQI
25th August 2025
53AQI
26th August 2025
50AQI
27th August 2025
48AQI
28th August 2025
42AQI
29th August 2025
42AQI
30th August 2025
34AQI
31st August 2025
38AQI
1st September 2025
43AQI
2nd September 2025
39AQI
3rd September 2025
40AQI
4th September 2025
37AQI
5th September 2025
39AQI
6th September 2025
34AQI
7th September 2025
47AQI
8th September 2025
41AQI
9th September 2025
52AQI
10th September 2025
54AQI
11th September 2025
47AQI
12th September 2025
59AQI
13th September 2025
60AQI
14th September 2025
60AQI
15th September 2025
57AQI
16th September 2025
57AQI
17th September 2025
58AQI
18th September 2025
54AQI
19th September 2025
39AQI
20th September 2025
31AQI
21st September 2025
28AQI
22nd September 2025
30AQI
23rd September 2025
24AQI
24th September 2025
22AQI
25th September 2025
24AQI
26th September 2025
36AQI
27th September 2025
32AQI
28th September 2025
39AQI
29th September 2025
37AQI
30th September 2025
51AQI
1st October 2025
67AQI
2nd October 2025
64AQI
3rd October 2025
52AQI
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

28AQI

33AQI

38AQI

40AQI

32AQI

37AQI

43AQI

40AQI

42AQI

61AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202537AQI

31
28
29
2
22
8
31
26
4
21
10
28
3
20
10
3
236
40

Highest AQI recorded in

October

61AQI

Lowest AQI recorded in

January

28AQI

202437AQI

27
4
18
11
29
2
26
4
23
7
1
26
4
29
2
18
13
30
26
5
29
1
27
4
308
57
1

Highest AQI recorded in

May

46AQI

Lowest AQI recorded in

November

30AQI

202343AQI

29
2
22
6
15
16
25
5
16
15
18
12
16
15
16
15
24
6
27
4
26
3
16
13
250
112

Highest AQI recorded in

May

53AQI

Lowest AQI recorded in

January

32AQI

202242AQI

26
5
17
4
22
9
25
5
25
6
18
12
20
4
1
20
9
20
11
24
6
29
2
247
73

Highest AQI recorded in

June

50AQI

Lowest AQI recorded in

August

25AQI

202143AQI

28
1
24
4
27
4
23
7
28
3
21
9
17
14
19
12
16
14
20
7
2
1
24
6
28
3
275
84
2
1

Highest AQI recorded in

October

51AQI

Lowest AQI recorded in

January

36AQI

202037AQI

6
7
17
4
15
3
19
10
1
16
15
17
10
14
1
26
23
7
30
1
183
58
1

Highest AQI recorded in

July

50AQI

Lowest AQI recorded in

October

1AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
43AQI
Least Polluted Year Recorded
2025(Avg.)
37AQI

Westlake Site's annual 2025 AQI (37) shows an average percentage change of -7.4% (improved AQI) compared to previous years: 2020 (37), 2021 (43), 2022 (42), 2023 (43), 2024 (37).