Bristol, Pennsylvania, 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
Bristol, Pennsylvania, United States
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
5th Oct 2025
67AQILowest AQI recorded on
16th Oct 2023
12AQISame Day Analysis (23rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 43 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 23rd Oct - 24th Oct 2025
Bristol, Pennsylvania, United States
AQI
Day
Night
.
7 AM23rd Oct 2025
6 PM
6 AM24th Oct 2025
Day time
Avg. Highest Time
12PM23rd Oct
40AQI
Avg. Lowest Time
5PM23rd Oct
26AQI
Night time
Avg. Highest Time
6AM24th Oct
43AQI
Avg. Lowest Time
8PM23rd Oct
30AQI
In the last 24 hours,
Bristol's AQI reached its highest point of 43 at 6 AM during the Night, while the lowest point, 26, was recorded at 5 PM during the Day between 23rd Oct and 24th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Bristol, Pennsylvania, United States
SepOct
24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th
Day
Night
24th Sep 2025357 AMAQI
24th Sep 2025348 AMAQI
24th Sep 2025349 AMAQI
24th Sep 20253510 AMAQI
24th Sep 20253611 AMAQI
24th Sep 20253512 PMAQI
24th Sep 2025341 PMAQI
24th Sep 2025352 PMAQI
24th Sep 2025353 PMAQI
24th Sep 2025344 PMAQI
24th Sep 2025335 PMAQI
24th Sep 2025336 PMAQI
24th Sep 2025357 PMAQI
24th Sep 2025368 PMAQI
24th Sep 2025379 PMAQI
24th Sep 20253610 PMAQI
24th Sep 20253611 PMAQI
25th Sep 20253712 AMAQI
25th Sep 2025351 AMAQI
25th Sep 2025342 AMAQI
25th Sep 2025343 AMAQI
25th Sep 2025214 AMAQI
25th Sep 2025165 AMAQI
25th Sep 2025196 AMAQI
24°C19/32°C
25th Sep 2025167 AMAQI
25th Sep 2025178 AMAQI
25th Sep 2025179 AMAQI
25th Sep 20251910 AMAQI
25th Sep 20251711 AMAQI
25th Sep 20251812 PMAQI
25th Sep 2025201 PMAQI
25th Sep 2025202 PMAQI
25th Sep 2025303 PMAQI
25th Sep 2025354 PMAQI
25th Sep 2025375 PMAQI
25th Sep 2025376 PMAQI
25th Sep 2025397 PMAQI
25th Sep 2025378 PMAQI
25th Sep 2025319 PMAQI
25th Sep 20252610 PMAQI
25th Sep 20252211 PMAQI
26th Sep 20252012 AMAQI
26th Sep 2025201 AMAQI
26th Sep 2025242 AMAQI
26th Sep 2025243 AMAQI
26th Sep 2025224 AMAQI
26th Sep 2025225 AMAQI
26th Sep 2025196 AMAQI
24°C21/28°C
26th Sep 2025187 AMAQI
26th Sep 2025218 AMAQI
26th Sep 2025369 AMAQI
26th Sep 20253310 AMAQI
26th Sep 20253211 AMAQI
26th Sep 20253212 PMAQI
26th Sep 2025321 PMAQI
26th Sep 2025332 PMAQI
26th Sep 2025353 PMAQI
26th Sep 2025364 PMAQI
26th Sep 2025365 PMAQI
26th Sep 2025366 PMAQI
26th Sep 2025377 PMAQI
26th Sep 2025398 PMAQI
26th Sep 2025419 PMAQI
26th Sep 20254310 PMAQI
26th Sep 20254511 PMAQI
27th Sep 20254512 AMAQI
27th Sep 2025441 AMAQI
27th Sep 2025452 AMAQI
27th Sep 2025433 AMAQI
27th Sep 2025404 AMAQI
27th Sep 2025395 AMAQI
27th Sep 2025406 AMAQI
24°C19/32°C
27th Sep 2025437 AMAQI
27th Sep 2025388 AMAQI
27th Sep 2025399 AMAQI
27th Sep 20253510 AMAQI
27th Sep 20253311 AMAQI
27th Sep 20253412 PMAQI
27th Sep 2025341 PMAQI
27th Sep 2025352 PMAQI
27th Sep 2025363 PMAQI
27th Sep 2025384 PMAQI
27th Sep 2025385 PMAQI
27th Sep 2025396 PMAQI
27th Sep 2025407 PMAQI
27th Sep 2025428 PMAQI
27th Sep 2025429 PMAQI
27th Sep 20254510 PMAQI
27th Sep 20254411 PMAQI
28th Sep 20254212 AMAQI
28th Sep 2025421 AMAQI
28th Sep 2025422 AMAQI
28th Sep 2025423 AMAQI
28th Sep 2025414 AMAQI
28th Sep 2025405 AMAQI
28th Sep 2025386 AMAQI
22°C16/31°C
28th Sep 2025357 AMAQI
28th Sep 2025358 AMAQI
28th Sep 2025359 AMAQI
28th Sep 20253510 AMAQI
28th Sep 20253311 AMAQI
28th Sep 20253512 PMAQI
28th Sep 2025361 PMAQI
28th Sep 2025322 PMAQI
28th Sep 2025323 PMAQI
28th Sep 2025334 PMAQI
28th Sep 2025355 PMAQI
28th Sep 2025326 PMAQI
28th Sep 2025337 PMAQI
28th Sep 2025358 PMAQI
28th Sep 2025389 PMAQI
28th Sep 20254210 PMAQI
28th Sep 20255111 PMAQI
29th Sep 20255112 AMAQI
29th Sep 2025531 AMAQI
29th Sep 2025522 AMAQI
29th Sep 2025553 AMAQI
29th Sep 2025534 AMAQI
29th Sep 2025505 AMAQI
29th Sep 2025466 AMAQI
23°C18/32°C
29th Sep 2025427 AMAQI
29th Sep 2025448 AMAQI
29th Sep 2025489 AMAQI
29th Sep 20254510 AMAQI
29th Sep 20254511 AMAQI
29th Sep 20254812 PMAQI
29th Sep 2025411 PMAQI
29th Sep 2025352 PMAQI
29th Sep 2025353 PMAQI
29th Sep 2025324 PMAQI
29th Sep 2025315 PMAQI
29th Sep 2025336 PMAQI
29th Sep 2025347 PMAQI
29th Sep 2025328 PMAQI
29th Sep 2025339 PMAQI
29th Sep 20253710 PMAQI
29th Sep 20253411 PMAQI
30th Sep 20253912 AMAQI
30th Sep 2025351 AMAQI
30th Sep 2025372 AMAQI
30th Sep 2025333 AMAQI
30th Sep 2025364 AMAQI
30th Sep 2025395 AMAQI
30th Sep 2025386 AMAQI
22°C17/30°C
30th Sep 2025407 AMAQI
30th Sep 2025368 AMAQI
30th Sep 2025369 AMAQI
30th Sep 20253710 AMAQI
30th Sep 20253311 AMAQI
30th Sep 20253712 PMAQI
30th Sep 2025361 PMAQI
30th Sep 2025442 PMAQI
30th Sep 2025353 PMAQI
30th Sep 2025274 PMAQI
30th Sep 2025265 PMAQI
30th Sep 2025266 PMAQI
30th Sep 2025287 PMAQI
30th Sep 2025318 PMAQI
30th Sep 2025369 PMAQI
30th Sep 20253510 PMAQI
30th Sep 20253811 PMAQI
1st Oct 20254512 AMAQI
1st Oct 2025441 AMAQI
1st Oct 2025462 AMAQI
1st Oct 2025463 AMAQI
1st Oct 2025384 AMAQI
1st Oct 2025375 AMAQI
1st Oct 2025376 AMAQI
22°C17/31°C
1st Oct 2025377 AMAQI
1st Oct 2025428 AMAQI
1st Oct 2025379 AMAQI
1st Oct 20253510 AMAQI
1st Oct 20253611 AMAQI
1st Oct 20254712 PMAQI
1st Oct 2025451 PMAQI
1st Oct 2025472 PMAQI
1st Oct 2025463 PMAQI
1st Oct 2025434 PMAQI
1st Oct 2025405 PMAQI
1st Oct 2025366 PMAQI
1st Oct 2025457 PMAQI
1st Oct 2025498 PMAQI
1st Oct 2025509 PMAQI
1st Oct 20255310 PMAQI
1st Oct 20255011 PMAQI
2nd Oct 20254812 AMAQI
2nd Oct 2025481 AMAQI
2nd Oct 2025462 AMAQI
2nd Oct 2025413 AMAQI
2nd Oct 2025454 AMAQI
2nd Oct 2025425 AMAQI
2nd Oct 2025356 AMAQI
19°C14/25°C
2nd Oct 2025397 AMAQI
2nd Oct 2025408 AMAQI
2nd Oct 2025429 AMAQI
2nd Oct 20254210 AMAQI
2nd Oct 20254611 AMAQI
2nd Oct 20254612 PMAQI
2nd Oct 2025461 PMAQI
2nd Oct 2025442 PMAQI
2nd Oct 2025463 PMAQI
2nd Oct 2025444 PMAQI
2nd Oct 2025415 PMAQI
2nd Oct 2025436 PMAQI
2nd Oct 2025487 PMAQI
2nd Oct 2025528 PMAQI
2nd Oct 2025519 PMAQI
2nd Oct 20255310 PMAQI
2nd Oct 20255911 PMAQI
3rd Oct 20255912 AMAQI
3rd Oct 2025581 AMAQI
3rd Oct 2025552 AMAQI
3rd Oct 2025553 AMAQI
3rd Oct 2025484 AMAQI
3rd Oct 2025465 AMAQI
3rd Oct 2025456 AMAQI
15°C10/22°C
3rd Oct 2025427 AMAQI
3rd Oct 2025488 AMAQI
3rd Oct 2025509 AMAQI
3rd Oct 20254910 AMAQI
3rd Oct 20255311 AMAQI
3rd Oct 20254912 PMAQI
3rd Oct 2025491 PMAQI
3rd Oct 2025462 PMAQI
3rd Oct 2025483 PMAQI
3rd Oct 2025474 PMAQI
3rd Oct 2025435 PMAQI
3rd Oct 2025476 PMAQI
3rd Oct 2025557 PMAQI
3rd Oct 2025578 PMAQI
3rd Oct 2025589 PMAQI
3rd Oct 20255810 PMAQI
3rd Oct 20256611 PMAQI
4th Oct 20256212 AMAQI
4th Oct 2025601 AMAQI
4th Oct 2025582 AMAQI
4th Oct 2025603 AMAQI
4th Oct 2025584 AMAQI
4th Oct 2025535 AMAQI
4th Oct 2025476 AMAQI
16°C7/25°C
4th Oct 2025527 AMAQI
4th Oct 2025518 AMAQI
4th Oct 2025519 AMAQI
4th Oct 20254910 AMAQI
4th Oct 20254811 AMAQI
4th Oct 20255412 PMAQI
4th Oct 2025561 PMAQI
4th Oct 2025512 PMAQI
4th Oct 2025523 PMAQI
4th Oct 2025544 PMAQI
4th Oct 2025555 PMAQI
4th Oct 2025546 PMAQI
4th Oct 2025617 PMAQI
4th Oct 2025578 PMAQI
4th Oct 2025559 PMAQI
4th Oct 20256010 PMAQI
4th Oct 20256111 PMAQI
5th Oct 20256312 AMAQI
5th Oct 2025621 AMAQI
5th Oct 2025622 AMAQI
5th Oct 2025613 AMAQI
5th Oct 2025554 AMAQI
5th Oct 2025585 AMAQI
5th Oct 2025546 AMAQI
20°C10/32°C
5th Oct 2025557 AMAQI
5th Oct 2025568 AMAQI
5th Oct 2025549 AMAQI
5th Oct 20255110 AMAQI
5th Oct 20255811 AMAQI
5th Oct 20256112 PMAQI
5th Oct 2025591 PMAQI
5th Oct 2025562 PMAQI
5th Oct 2025553 PMAQI
5th Oct 2025554 PMAQI
5th Oct 2025565 PMAQI
5th Oct 2025526 PMAQI
5th Oct 2025527 PMAQI
5th Oct 2025588 PMAQI
5th Oct 2025569 PMAQI
5th Oct 20255810 PMAQI
5th Oct 20256111 PMAQI
6th Oct 20255912 AMAQI
6th Oct 2025561 AMAQI
6th Oct 2025552 AMAQI
6th Oct 2025543 AMAQI
6th Oct 2025564 AMAQI
6th Oct 2025555 AMAQI
6th Oct 2025566 AMAQI
22°C13/32°C
6th Oct 2025537 AMAQI
6th Oct 2025548 AMAQI
6th Oct 2025579 AMAQI
6th Oct 20256010 AMAQI
6th Oct 20256011 AMAQI
6th Oct 20256312 PMAQI
6th Oct 2025631 PMAQI
6th Oct 2025572 PMAQI
6th Oct 2025583 PMAQI
6th Oct 2025594 PMAQI
6th Oct 2025615 PMAQI
6th Oct 2025716 PMAQI
6th Oct 2025907 PMAQI
6th Oct 2025928 PMAQI
21°C13/30°C
7th Oct 2025677 AMAQI
7th Oct 2025378 AMAQI
7th Oct 2025439 AMAQI
7th Oct 20254710 AMAQI
7th Oct 20254511 AMAQI
7th Oct 20254212 PMAQI
7th Oct 2025411 PMAQI
7th Oct 2025432 PMAQI
7th Oct 2025373 PMAQI
7th Oct 2025434 PMAQI
7th Oct 2025425 PMAQI
7th Oct 2025476 PMAQI
7th Oct 2025467 PMAQI
7th Oct 2025488 PMAQI
7th Oct 2025449 PMAQI
7th Oct 20254610 PMAQI
7th Oct 20254311 PMAQI
8th Oct 20254212 AMAQI
8th Oct 2025411 AMAQI
8th Oct 2025362 AMAQI
8th Oct 2025473 AMAQI
8th Oct 2025404 AMAQI
8th Oct 2025355 AMAQI
8th Oct 2025456 AMAQI
22°C16/28°C
8th Oct 2025407 AMAQI
8th Oct 2025458 AMAQI
8th Oct 2025469 AMAQI
8th Oct 20255110 AMAQI
8th Oct 20255111 AMAQI
8th Oct 20254512 PMAQI
8th Oct 2025411 PMAQI
8th Oct 2025532 PMAQI
8th Oct 2025543 PMAQI
8th Oct 2025434 PMAQI
8th Oct 2025355 PMAQI
8th Oct 2025456 PMAQI
8th Oct 2025407 PMAQI
8th Oct 2025498 PMAQI
8th Oct 2025479 PMAQI
8th Oct 20253810 PMAQI
8th Oct 20254911 PMAQI
9th Oct 20255812 AMAQI
9th Oct 2025561 AMAQI
9th Oct 2025532 AMAQI
9th Oct 2025563 AMAQI
9th Oct 2025544 AMAQI
9th Oct 2025585 AMAQI
9th Oct 2025566 AMAQI
20°C14/23°C
9th Oct 2025517 AMAQI
9th Oct 2025518 AMAQI
9th Oct 2025529 AMAQI
9th Oct 20255210 AMAQI
9th Oct 20255211 AMAQI
9th Oct 20255212 PMAQI
9th Oct 2025481 PMAQI
9th Oct 2025382 PMAQI
9th Oct 2025363 PMAQI
9th Oct 2025374 PMAQI
9th Oct 2025405 PMAQI
9th Oct 2025396 PMAQI
9th Oct 2025367 PMAQI
9th Oct 2025418 PMAQI
9th Oct 2025529 PMAQI
9th Oct 20255110 PMAQI
9th Oct 20255111 PMAQI
10th Oct 20255112 AMAQI
10th Oct 2025521 AMAQI
10th Oct 2025542 AMAQI
10th Oct 2025563 AMAQI
10th Oct 2025564 AMAQI
10th Oct 2025535 AMAQI
10th Oct 2025496 AMAQI
14°C10/19°C
10th Oct 2025367 AMAQI
10th Oct 2025318 AMAQI
10th Oct 2025319 AMAQI
10th Oct 20253510 AMAQI
10th Oct 20253711 AMAQI
10th Oct 20253912 PMAQI
10th Oct 2025441 PMAQI
10th Oct 2025442 PMAQI
10th Oct 2025483 PMAQI
10th Oct 2025424 PMAQI
10th Oct 2025385 PMAQI
10th Oct 2025366 PMAQI
10th Oct 2025437 PMAQI
10th Oct 2025428 PMAQI
10th Oct 2025539 PMAQI
10th Oct 20255810 PMAQI
10th Oct 20255811 PMAQI
11th Oct 20255912 AMAQI
11th Oct 2025581 AMAQI
11th Oct 2025582 AMAQI
11th Oct 2025563 AMAQI
11th Oct 2025524 AMAQI
11th Oct 2025535 AMAQI
11th Oct 2025546 AMAQI
11°C5/17°C
11th Oct 2025567 AMAQI
11th Oct 2025558 AMAQI
11th Oct 2025519 AMAQI
11th Oct 20255210 AMAQI
11th Oct 20255111 AMAQI
11th Oct 20255412 PMAQI
11th Oct 2025521 PMAQI
11th Oct 2025532 PMAQI
11th Oct 2025463 PMAQI
11th Oct 2025464 PMAQI
11th Oct 2025495 PMAQI
11th Oct 2025486 PMAQI
11th Oct 2025477 PMAQI
11th Oct 2025498 PMAQI
11th Oct 2025529 PMAQI
11th Oct 20254710 PMAQI
11th Oct 20255211 PMAQI
12th Oct 20255512 AMAQI
12th Oct 2025581 AMAQI
12th Oct 2025542 AMAQI
12th Oct 2025553 AMAQI
12th Oct 2025564 AMAQI
12th Oct 2025565 AMAQI
12th Oct 2025546 AMAQI
14°C9/20°C
12th Oct 2025507 AMAQI
12th Oct 2025468 AMAQI
12th Oct 2025479 AMAQI
12th Oct 20254410 AMAQI
12th Oct 20254511 AMAQI
12th Oct 20254712 PMAQI
12th Oct 2025421 PMAQI
12th Oct 2025362 PMAQI
12th Oct 2025353 PMAQI
12th Oct 2025424 PMAQI
12th Oct 2025345 PMAQI
12th Oct 2025436 PMAQI
12th Oct 2025377 PMAQI
12th Oct 2025368 PMAQI
12th Oct 2025449 PMAQI
12th Oct 20254310 PMAQI
12th Oct 20254311 PMAQI
13th Oct 20254712 AMAQI
13th Oct 2025471 AMAQI
13th Oct 2025452 AMAQI
13th Oct 2025443 AMAQI
13th Oct 2025464 AMAQI
13th Oct 2025525 AMAQI
13th Oct 2025496 AMAQI
16°C13/19°C
13th Oct 2025467 AMAQI
13th Oct 2025458 AMAQI
13th Oct 2025449 AMAQI
13th Oct 20254510 AMAQI
13th Oct 20254411 AMAQI
13th Oct 20254212 PMAQI
13th Oct 2025411 PMAQI
13th Oct 2025422 PMAQI
13th Oct 2025423 PMAQI
13th Oct 2025384 PMAQI
13th Oct 2025395 PMAQI
13th Oct 2025376 PMAQI
13th Oct 2025397 PMAQI
13th Oct 2025398 PMAQI
13th Oct 2025419 PMAQI
13th Oct 20253910 PMAQI
13th Oct 20253711 PMAQI
14th Oct 20253812 AMAQI
14th Oct 2025411 AMAQI
14th Oct 2025422 AMAQI
14th Oct 2025413 AMAQI
14th Oct 2025384 AMAQI
14th Oct 2025385 AMAQI
14th Oct 2025406 AMAQI
14°C12/15°C
14th Oct 2025397 AMAQI
14th Oct 2025388 AMAQI
14th Oct 2025359 AMAQI
14th Oct 20253210 AMAQI
14th Oct 20253511 AMAQI
14th Oct 20253812 PMAQI
14th Oct 2025401 PMAQI
14th Oct 2025392 PMAQI
14th Oct 2025333 PMAQI
14th Oct 2025354 PMAQI
14th Oct 2025325 PMAQI
14th Oct 2025346 PMAQI
14th Oct 2025367 PMAQI
14th Oct 2025368 PMAQI
14th Oct 2025409 PMAQI
14th Oct 20254810 PMAQI
14th Oct 20255111 PMAQI
15th Oct 20254712 AMAQI
15th Oct 2025431 AMAQI
15th Oct 2025482 AMAQI
15th Oct 2025443 AMAQI
15th Oct 2025344 AMAQI
15th Oct 2025375 AMAQI
15th Oct 2025376 AMAQI
15°C12/18°C
15th Oct 2025357 AMAQI
15th Oct 2025358 AMAQI
15th Oct 2025389 AMAQI
15th Oct 20254410 AMAQI
15th Oct 20254211 AMAQI
15th Oct 20254712 PMAQI
15th Oct 2025441 PMAQI
15th Oct 2025462 PMAQI
15th Oct 2025483 PMAQI
15th Oct 2025434 PMAQI
15th Oct 2025435 PMAQI
15th Oct 2025396 PMAQI
15th Oct 2025407 PMAQI
15th Oct 2025388 PMAQI
15th Oct 2025439 PMAQI
15th Oct 20254210 PMAQI
15th Oct 20253611 PMAQI
16th Oct 20253212 AMAQI
16th Oct 2025401 AMAQI
16th Oct 2025382 AMAQI
16th Oct 2025373 AMAQI
16th Oct 2025344 AMAQI
16th Oct 2025325 AMAQI
16th Oct 2025296 AMAQI
17°C12/25°C
16th Oct 2025277 AMAQI
16th Oct 2025298 AMAQI
16th Oct 2025389 AMAQI
16th Oct 20254010 AMAQI
16th Oct 20253411 AMAQI
16th Oct 20253612 PMAQI
16th Oct 2025311 PMAQI
16th Oct 2025322 PMAQI
16th Oct 2025373 PMAQI
16th Oct 2025404 PMAQI
16th Oct 2025415 PMAQI
16th Oct 2025436 PMAQI
16th Oct 2025437 PMAQI
16th Oct 2025348 PMAQI
16th Oct 2025399 PMAQI
16th Oct 20254110 PMAQI
16th Oct 20254111 PMAQI
17th Oct 20253912 AMAQI
17th Oct 2025401 AMAQI
17th Oct 2025392 AMAQI
17th Oct 2025383 AMAQI
17th Oct 2025364 AMAQI
17th Oct 2025335 AMAQI
17th Oct 2025256 AMAQI
13°C8/20°C
17th Oct 2025277 AMAQI
17th Oct 2025278 AMAQI
17th Oct 2025349 AMAQI
17th Oct 20253910 AMAQI
17th Oct 20254011 AMAQI
17th Oct 20253712 PMAQI
17th Oct 2025421 PMAQI
17th Oct 2025372 PMAQI
17th Oct 2025353 PMAQI
17th Oct 2025344 PMAQI
17th Oct 2025335 PMAQI
17th Oct 2025346 PMAQI
17th Oct 2025357 PMAQI
17th Oct 2025418 PMAQI
17th Oct 2025459 PMAQI
17th Oct 20254510 PMAQI
17th Oct 20255011 PMAQI
18th Oct 20255212 AMAQI
18th Oct 2025511 AMAQI
18th Oct 2025492 AMAQI
18th Oct 2025513 AMAQI
18th Oct 2025464 AMAQI
18th Oct 2025435 AMAQI
18th Oct 2025456 AMAQI
13°C7/20°C
18th Oct 2025497 AMAQI
18th Oct 2025468 AMAQI
18th Oct 2025459 AMAQI
18th Oct 20254610 AMAQI
18th Oct 20254611 AMAQI
18th Oct 20254412 PMAQI
18th Oct 2025441 PMAQI
18th Oct 2025492 PMAQI
18th Oct 2025493 PMAQI
18th Oct 2025494 PMAQI
18th Oct 2025525 PMAQI
18th Oct 2025506 PMAQI
18th Oct 2025517 PMAQI
18th Oct 2025568 PMAQI
18th Oct 2025549 PMAQI
18th Oct 20255310 PMAQI
18th Oct 20255511 PMAQI
19th Oct 20255512 AMAQI
19th Oct 2025481 AMAQI
19th Oct 2025482 AMAQI
19th Oct 2025483 AMAQI
19th Oct 2025494 AMAQI
19th Oct 2025475 AMAQI
19th Oct 2025496 AMAQI
15°C7/23°C
19th Oct 2025487 AMAQI
19th Oct 2025518 AMAQI
19th Oct 2025499 AMAQI
19th Oct 20254810 AMAQI
19th Oct 20255011 AMAQI
19th Oct 20255112 PMAQI
19th Oct 2025491 PMAQI
19th Oct 2025412 PMAQI
19th Oct 2025463 PMAQI
19th Oct 2025484 PMAQI
19th Oct 2025495 PMAQI
19th Oct 2025516 PMAQI
19th Oct 2025467 PMAQI
19th Oct 2025458 PMAQI
19th Oct 2025519 PMAQI
19th Oct 20255110 PMAQI
19th Oct 20255011 PMAQI
20th Oct 20253612 AMAQI
20th Oct 2025361 AMAQI
20th Oct 2025362 AMAQI
20th Oct 2025353 AMAQI
20th Oct 2025364 AMAQI
20th Oct 2025375 AMAQI
20th Oct 2025296 AMAQI
17°C9/27°C
20th Oct 2025307 AMAQI
20th Oct 2025318 AMAQI
20th Oct 2025319 AMAQI
20th Oct 20253110 AMAQI
20th Oct 20253011 AMAQI
20th Oct 20253512 PMAQI
20th Oct 2025301 PMAQI
20th Oct 2025312 PMAQI
20th Oct 2025433 PMAQI
20th Oct 2025334 PMAQI
20th Oct 2025315 PMAQI
20th Oct 2025366 PMAQI
20th Oct 2025287 PMAQI
20th Oct 2025328 PMAQI
20th Oct 2025339 PMAQI
20th Oct 20253110 PMAQI
20th Oct 20252611 PMAQI
21st Oct 20253212 AMAQI
21st Oct 2025331 AMAQI
21st Oct 2025302 AMAQI
21st Oct 2025293 AMAQI
21st Oct 2025254 AMAQI
21st Oct 2025395 AMAQI
21st Oct 2025456 AMAQI
16°C11/20°C
21st Oct 2025427 AMAQI
21st Oct 2025328 AMAQI
21st Oct 2025299 AMAQI
21st Oct 20253910 AMAQI
21st Oct 20254111 AMAQI
21st Oct 20254212 PMAQI
21st Oct 2025421 PMAQI
21st Oct 2025402 PMAQI
21st Oct 2025373 PMAQI
21st Oct 2025354 PMAQI
21st Oct 2025345 PMAQI
21st Oct 2025316 PMAQI
21st Oct 2025357 PMAQI
21st Oct 2025378 PMAQI
21st Oct 2025399 PMAQI
21st Oct 20254010 PMAQI
21st Oct 20253911 PMAQI
22nd Oct 20254012 AMAQI
22nd Oct 2025421 AMAQI
22nd Oct 2025442 AMAQI
22nd Oct 2025453 AMAQI
22nd Oct 2025414 AMAQI
22nd Oct 2025415 AMAQI
22nd Oct 2025416 AMAQI
15°C7/24°C
22nd Oct 2025437 AMAQI
22nd Oct 2025448 AMAQI
22nd Oct 2025429 AMAQI
22nd Oct 20254210 AMAQI
22nd Oct 20254111 AMAQI
22nd Oct 20254212 PMAQI
22nd Oct 2025391 PMAQI
22nd Oct 2025352 PMAQI
22nd Oct 2025323 PMAQI
22nd Oct 2025324 PMAQI
22nd Oct 2025305 PMAQI
22nd Oct 2025326 PMAQI
22nd Oct 2025377 PMAQI
22nd Oct 2025398 PMAQI
22nd Oct 2025469 PMAQI
22nd Oct 20254910 PMAQI
22nd Oct 20255111 PMAQI
23rd Oct 20254912 AMAQI
23rd Oct 2025451 AMAQI
23rd Oct 2025352 AMAQI
23rd Oct 2025333 AMAQI
23rd Oct 2025324 AMAQI
23rd Oct 2025335 AMAQI
23rd Oct 2025356 AMAQI
15°C12/20°C
23rd Oct 2025347 AMAQI
23rd Oct 2025358 AMAQI
23rd Oct 2025369 AMAQI
23rd Oct 20253610 AMAQI
23rd Oct 20253811 AMAQI
23rd Oct 20254012 PMAQI
23rd Oct 2025381 PMAQI
23rd Oct 2025382 PMAQI
23rd Oct 2025303 PMAQI
23rd Oct 2025264 PMAQI
23rd Oct 2025265 PMAQI
23rd Oct 2025306 PMAQI
23rd Oct 2025307 PMAQI
23rd Oct 2025308 PMAQI
23rd Oct 2025359 PMAQI
23rd Oct 20253810 PMAQI
23rd Oct 20253911 PMAQI
24th Oct 20253912 AMAQI
24th Oct 2025371 AMAQI
24th Oct 2025342 AMAQI
24th Oct 2025353 AMAQI
24th Oct 2025384 AMAQI
24th Oct 2025425 AMAQI
24th Oct 2025436 AMAQI
12°C8/18°C
24th Oct 2025417 AMAQI
7 AM24th Oct 2025418 AMAQI
24th Oct 2025419 AMAQI
24th Oct 20254110 AMAQI
24th Oct 20254011 AMAQI
24th Oct 20254312 PMAQI
12 PM24th Oct 2025401 PMAQI
24th Oct 2025352 PMAQI
24th Oct 2025313 PMAQI
24th Oct 2025294 PMAQI
24th Oct 2025305 PMAQI
24th Oct 2025366 PMAQI
6 PM24th Oct 2025437 PMAQI
24th Oct 2025458 PMAQI
24th Oct 2025429 PMAQI
24th Oct 20254410 PMAQI
24th Oct 20255311 PMAQI
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 6 PM
41AQI
12 hours / Day
360 hours / Month
Avg. Lowest Time
7 AM - 6 PM
41AQI
12 hours / Day
360 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 6 PM (Avg. 41), while the lowest AQI was between 7 AM to 6 PM (Avg. 41).
Night time
Avg. Highest Time
12 AM - 3 AM
45AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
4 AM - 7 PM
42AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 45), while the lowest AQI was between 4 AM to 7 PM (Avg. 42).
2025 Days Vs Air Quality
Bristol, Pennsylvania, United States
2025
87%
257
13%
39
Total number of days with different AQI categories in last 297 days in 2025 (68 days remaining)
Good
257 DaysModerate
39 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 297 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
Bristol, Pennsylvania, 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
27AQI
27AQI
2nd January 2025
20AQI
20AQI
3rd January 2025
30AQI
30AQI
4th January 2025
24AQI
24AQI
5th January 2025
28AQI
28AQI
6th January 2025
34AQI
34AQI
7th January 2025
22AQI
22AQI
8th January 2025
27AQI
27AQI
9th January 2025
28AQI
28AQI
10th January 2025
27AQI
27AQI
11th January 2025
42AQI
42AQI
12th January 2025
50AQI
50AQI
13th January 2025
49AQI
49AQI
14th January 2025
26AQI
26AQI
15th January 2025
24AQI
24AQI
16th January 2025
41AQI
41AQI
17th January 2025
56AQI
56AQI
18th January 2025
44AQI
44AQI
19th January 2025
46AQI
46AQI
20th January 2025
26AQI
26AQI
21st January 2025
33AQI
33AQI
22nd January 2025
53AQI
53AQI
23rd January 2025
68AQI
68AQI
24th January 2025
66AQI
66AQI
25th January 2025
61AQI
61AQI
26th January 2025
48AQI
48AQI
27th January 2025
44AQI
44AQI
28th January 2025
32AQI
32AQI
29th January 2025
30AQI
30AQI
30th January 2025
28AQI
28AQI
31st January 2025
43AQI
43AQI
1st February 2025
32AQI
32AQI
2nd February 2025
24AQI
24AQI
3rd February 2025
43AQI
43AQI
4th February 2025
35AQI
35AQI
5th February 2025
25AQI
25AQI
6th February 2025
30AQI
30AQI
7th February 2025
33AQI
33AQI
8th February 2025
33AQI
33AQI
9th February 2025
33AQI
33AQI
10th February 2025
32AQI
32AQI
11th February 2025
41AQI
41AQI
12th February 2025
49AQI
49AQI
13th February 2025
24AQI
24AQI
14th February 2025
30AQI
30AQI
15th February 2025
33AQI
33AQI
16th February 2025
22AQI
22AQI
17th February 2025
29AQI
29AQI
18th February 2025
28AQI
28AQI
19th February 2025
24AQI
24AQI
20th February 2025
24AQI
24AQI
21st February 2025
25AQI
25AQI
22nd February 2025
35AQI
35AQI
23rd February 2025
50AQI
50AQI
24th February 2025
53AQI
53AQI
25th February 2025
40AQI
40AQI
26th February 2025
48AQI
48AQI
27th February 2025
46AQI
46AQI
28th February 2025
30AQI
30AQI
1st March 2025
29AQI
29AQI
2nd March 2025
30AQI
30AQI
3rd March 2025
31AQI
31AQI
4th March 2025
38AQI
38AQI
5th March 2025
29AQI
29AQI
6th March 2025
24AQI
24AQI
7th March 2025
31AQI
31AQI
8th March 2025
30AQI
30AQI
9th March 2025
28AQI
28AQI
10th March 2025
30AQI
30AQI
11th March 2025
35AQI
35AQI
12th March 2025
28AQI
28AQI
13th March 2025
31AQI
31AQI
14th March 2025
42AQI
42AQI
15th March 2025
35AQI
35AQI
16th March 2025
31AQI
31AQI
17th March 2025
21AQI
21AQI
18th March 2025
17AQI
17AQI
19th March 2025
30AQI
30AQI
20th March 2025
26AQI
26AQI
21st March 2025
19AQI
19AQI
22nd March 2025
24AQI
24AQI
23rd March 2025
17AQI
17AQI
24th March 2025
30AQI
30AQI
25th March 2025
30AQI
30AQI
26th March 2025
22AQI
22AQI
27th March 2025
20AQI
20AQI
28th March 2025
36AQI
36AQI
29th March 2025
56AQI
56AQI
30th March 2025
50AQI
50AQI
31st March 2025
36AQI
36AQI
1st April 2025
19AQI
19AQI
2nd April 2025
21AQI
21AQI
3rd April 2025
34AQI
34AQI
4th April 2025
30AQI
30AQI
5th April 2025
24AQI
24AQI
6th April 2025
35AQI
35AQI
7th April 2025
23AQI
23AQI
8th April 2025
30AQI
30AQI
9th April 2025
22AQI
22AQI
10th April 2025
25AQI
25AQI
11th April 2025
25AQI
25AQI
12th April 2025
16AQI
16AQI
13th April 2025
19AQI
19AQI
14th April 2025
32AQI
32AQI
15th April 2025
35AQI
35AQI
16th April 2025
15AQI
15AQI
17th April 2025
21AQI
21AQI
18th April 2025
35AQI
35AQI
19th April 2025
53AQI
53AQI
20th April 2025
32AQI
32AQI
21st April 2025
25AQI
25AQI
22nd April 2025
35AQI
35AQI
23rd April 2025
24AQI
24AQI
24th April 2025
56AQI
56AQI
25th April 2025
33AQI
33AQI
26th April 2025
34AQI
34AQI
27th April 2025
14AQI
14AQI
28th April 2025
19AQI
19AQI
29th April 2025
31AQI
31AQI
30th April 2025
36AQI
36AQI
1st May 2025
24AQI
24AQI
2nd May 2025
43AQI
43AQI
3rd May 2025
45AQI
45AQI
4th May 2025
29AQI
29AQI
5th May 2025
24AQI
24AQI
6th May 2025
24AQI
24AQI
7th May 2025
19AQI
19AQI
8th May 2025
33AQI
33AQI
9th May 2025
22AQI
22AQI
10th May 2025
19AQI
19AQI
11th May 2025
34AQI
34AQI
12th May 2025
37AQI
37AQI
13th May 2025
26AQI
26AQI
14th May 2025
27AQI
27AQI
15th May 2025
30AQI
30AQI
16th May 2025
36AQI
36AQI
17th May 2025
33AQI
33AQI
18th May 2025
18AQI
18AQI
19th May 2025
19AQI
19AQI
20th May 2025
16AQI
16AQI
21st May 2025
17AQI
17AQI
22nd May 2025
14AQI
14AQI
23rd May 2025
19AQI
19AQI
24th May 2025
13AQI
13AQI
25th May 2025
14AQI
14AQI
26th May 2025
18AQI
18AQI
27th May 2025
27AQI
27AQI
28th May 2025
19AQI
19AQI
29th May 2025
18AQI
18AQI
30th May 2025
36AQI
36AQI
31st May 2025
31AQI
31AQI
1st June 2025
18AQI
18AQI
2nd June 2025
23AQI
23AQI
3rd June 2025
32AQI
32AQI
4th June 2025
48AQI
48AQI
5th June 2025
53AQI
53AQI
6th June 2025
54AQI
54AQI
7th June 2025
40AQI
40AQI
8th June 2025
29AQI
29AQI
9th June 2025
27AQI
27AQI
10th June 2025
34AQI
34AQI
11th June 2025
53AQI
53AQI
12th June 2025
62AQI
62AQI
13th June 2025
70AQI
70AQI
14th June 2025
75AQI
75AQI
15th June 2025
39AQI
39AQI
16th June 2025
36AQI
36AQI
17th June 2025
35AQI
35AQI
18th June 2025
28AQI
28AQI
19th June 2025
34AQI
34AQI
20th June 2025
27AQI
27AQI
21st June 2025
47AQI
47AQI
22nd June 2025
50AQI
50AQI
23rd June 2025
57AQI
57AQI
24th June 2025
58AQI
58AQI
25th June 2025
56AQI
56AQI
26th June 2025
46AQI
46AQI
27th June 2025
42AQI
42AQI
28th June 2025
37AQI
37AQI
29th June 2025
47AQI
47AQI
30th June 2025
49AQI
49AQI
1st July 2025
36AQI
36AQI
2nd July 2025
30AQI
30AQI
3rd July 2025
48AQI
48AQI
4th July 2025
49AQI
49AQI
5th July 2025
65AQI
65AQI
6th July 2025
56AQI
56AQI
7th July 2025
37AQI
37AQI
8th July 2025
38AQI
38AQI
9th July 2025
37AQI
37AQI
10th July 2025
38AQI
38AQI
11th July 2025
36AQI
36AQI
12th July 2025
31AQI
31AQI
13th July 2025
23AQI
23AQI
14th July 2025
25AQI
25AQI
15th July 2025
23AQI
23AQI
16th July 2025
35AQI
35AQI
17th July 2025
30AQI
30AQI
18th July 2025
24AQI
24AQI
19th July 2025
27AQI
27AQI
20th July 2025
31AQI
31AQI
21st July 2025
36AQI
36AQI
22nd July 2025
47AQI
47AQI
23rd July 2025
37AQI
37AQI
24th July 2025
35AQI
35AQI
25th July 2025
49AQI
49AQI
26th July 2025
42AQI
42AQI
27th July 2025
82AQI
82AQI
28th July 2025
47AQI
47AQI
29th July 2025
54AQI
54AQI
30th July 2025
57AQI
57AQI
31st July 2025
57AQI
57AQI
1st August 2025
42AQI
42AQI
2nd August 2025
51AQI
51AQI
3rd August 2025
53AQI
53AQI
4th August 2025
64AQI
64AQI
5th August 2025
77AQI
77AQI
6th August 2025
73AQI
73AQI
7th August 2025
49AQI
49AQI
8th August 2025
32AQI
32AQI
9th August 2025
35AQI
35AQI
10th August 2025
35AQI
35AQI
11th August 2025
49AQI
49AQI
12th August 2025
45AQI
45AQI
13th August 2025
36AQI
36AQI
14th August 2025
35AQI
35AQI
15th August 2025
48AQI
48AQI
16th August 2025
51AQI
51AQI
17th August 2025
52AQI
52AQI
18th August 2025
32AQI
32AQI
19th August 2025
23AQI
23AQI
20th August 2025
20AQI
20AQI
21st August 2025
17AQI
17AQI
22nd August 2025
29AQI
29AQI
23rd August 2025
34AQI
34AQI
24th August 2025
29AQI
29AQI
25th August 2025
30AQI
30AQI
26th August 2025
20AQI
20AQI
27th August 2025
21AQI
21AQI
28th August 2025
34AQI
34AQI
29th August 2025
31AQI
31AQI
30th August 2025
20AQI
20AQI
31st August 2025
24AQI
24AQI
1st September 2025
34AQI
34AQI
2nd September 2025
30AQI
30AQI
3rd September 2025
32AQI
32AQI
4th September 2025
28AQI
28AQI
5th September 2025
43AQI
43AQI
6th September 2025
54AQI
54AQI
7th September 2025
44AQI
44AQI
8th September 2025
25AQI
25AQI
9th September 2025
27AQI
27AQI
10th September 2025
26AQI
26AQI
11th September 2025
29AQI
29AQI
12th September 2025
42AQI
42AQI
13th September 2025
44AQI
44AQI
14th September 2025
45AQI
45AQI
15th September 2025
43AQI
43AQI
16th September 2025
38AQI
38AQI
17th September 2025
27AQI
27AQI
18th September 2025
26AQI
26AQI
19th September 2025
35AQI
35AQI
20th September 2025
21AQI
21AQI
21st September 2025
25AQI
25AQI
22nd September 2025
23AQI
23AQI
23rd September 2025
30AQI
30AQI
24th September 2025
43AQI
43AQI
25th September 2025
31AQI
31AQI
26th September 2025
37AQI
37AQI
27th September 2025
47AQI
47AQI
28th September 2025
51AQI
51AQI
29th September 2025
45AQI
45AQI
30th September 2025
24AQI
24AQI
1st October 2025
43AQI
43AQI
2nd October 2025
40AQI
40AQI
3rd October 2025
52AQI
52AQI
4th October 2025
58AQI
58AQI
5th October 2025
67AQI
67AQI
6th October 2025
58AQI
58AQI
7th October 2025
46AQI
46AQI
8th October 2025
33AQI
33AQI
9th October 2025
38AQI
38AQI
10th October 2025
40AQI
40AQI
11th October 2025
50AQI
50AQI
12th October 2025
35AQI
35AQI
13th October 2025
28AQI
28AQI
14th October 2025
23AQI
23AQI
15th October 2025
38AQI
38AQI
16th October 2025
25AQI
25AQI
17th October 2025
28AQI
28AQI
18th October 2025
51AQI
51AQI
19th October 2025
56AQI
56AQI
20th October 2025
22AQI
22AQI
21st October 2025
38AQI
38AQI
22nd October 2025
48AQI
48AQI
23rd October 2025
43AQI
43AQI
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
38AQI
34AQI
30AQI
28AQI
25AQI
44AQI
41AQI
38AQI
35AQI
42AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202535AQI
26
5
27
1
30
1
28
2
31
21
9
25
6
24
7
28
2
17
6
257
39
Highest AQI recorded in
June44AQI
Lowest AQI recorded in
May25AQI
202434AQI
24
7
25
4
29
26
4
31
26
3
28
3
24
7
30
29
2
30
26
5
328
35
Highest AQI recorded in
July39AQI
Lowest AQI recorded in
November27AQI
202340AQI
27
4
20
8
28
3
27
3
26
5
14
11
2
1
2
23
8
26
5
29
1
31
26
3
24
7
301
58
2
1
2
Highest AQI recorded in
June72AQI
Lowest AQI recorded in
October28AQI
202235AQI
22
7
19
2
26
4
18
30
26
1
19
2
1
29
28
3
27
2
25
6
270
27
Highest AQI recorded in
July40AQI
Lowest AQI recorded in
September30AQI
202139AQI
22
5
20
2
14
2
23
2
28
3
26
4
14
14
2
26
5
27
3
29
2
24
6
20
11
273
59
2
Highest AQI recorded in
July55AQI
Lowest AQI recorded in
April34AQI
202034AQI
14
20
18
30
30
1
30
1
28
2
29
1
23
4
1
23
8
245
17
1
Highest AQI recorded in
November43AQI
Lowest AQI recorded in
September28AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
40AQILeast Polluted Year Recorded
2024(Avg.)
34AQIBristol's annual 2025 AQI (35) shows an average percentage change of -2.6% (improved AQI) compared to previous years: 2020 (34), 2021 (39), 2022 (35), 2023 (40), 2024 (34).
