Altoona, 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+
August Air Quality Analysis
Altoona, Pennsylvania, United States
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2025
77AQILowest AQI recorded on
8th Aug 2024
17AQISame Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 49 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 15th Aug - 16th Aug 2026
Altoona, Pennsylvania, United States
AQI
Day
Night
.
6 AM15th Aug 2026
8 PM
5 AM16th Aug 2026
Day time
Avg. Highest Time
6AM15th Aug
55AQI
Avg. Lowest Time
8PM15th Aug
40AQI
Night time
Avg. Highest Time
4AM16th Aug
52AQI
Avg. Lowest Time
9PM15th Aug
44AQI
In the last 24 hours,
Altoona's AQI reached its highest point of 55 at 6 AM during the Day, while the lowest point, 40, was recorded at 8 PM during the Day between 15th Aug and 16th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Altoona, Pennsylvania, United States
JulAug
18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th
Day
Night
18th Jul 2026586 AMAQI
18th Jul 2026707 AMAQI
18th Jul 2026688 AMAQI
18th Jul 2026609 AMAQI
18th Jul 20266610 AMAQI
18th Jul 20266211 AMAQI
18th Jul 20266512 PMAQI
18th Jul 2026651 PMAQI
18th Jul 2026742 PMAQI
18th Jul 2026763 PMAQI
18th Jul 2026834 PMAQI
18th Jul 2026745 PMAQI
18th Jul 2026626 PMAQI
18th Jul 2026447 PMAQI
18th Jul 2026638 PMAQI
18th Jul 2026509 PMAQI
18th Jul 20263810 PMAQI
18th Jul 20265011 PMAQI
19th Jul 20263812 AMAQI
19th Jul 2026341 AMAQI
19th Jul 2026422 AMAQI
19th Jul 2026413 AMAQI
19th Jul 2026464 AMAQI
19th Jul 2026535 AMAQI
22°C18/31°C
19th Jul 2026706 AMAQI
19th Jul 2026687 AMAQI
19th Jul 2026758 AMAQI
19th Jul 2026749 AMAQI
19th Jul 20267510 AMAQI
19th Jul 20267211 AMAQI
19th Jul 20267412 PMAQI
19th Jul 2026681 PMAQI
19th Jul 2026652 PMAQI
19th Jul 2026653 PMAQI
19th Jul 2026654 PMAQI
19th Jul 2026725 PMAQI
19th Jul 2026686 PMAQI
19th Jul 2026657 PMAQI
19th Jul 2026658 PMAQI
19th Jul 2026689 PMAQI
19th Jul 20266810 PMAQI
19th Jul 20267111 PMAQI
20th Jul 20266512 AMAQI
20th Jul 2026701 AMAQI
20th Jul 2026702 AMAQI
20th Jul 2026703 AMAQI
20th Jul 2026684 AMAQI
20th Jul 2026695 AMAQI
21°C18/25°C
20th Jul 2026716 AMAQI
20th Jul 2026687 AMAQI
20th Jul 2026688 AMAQI
20th Jul 2026649 AMAQI
20th Jul 20265710 AMAQI
20th Jul 20265211 AMAQI
20th Jul 20265412 PMAQI
20th Jul 2026561 PMAQI
20th Jul 2026662 PMAQI
20th Jul 2026653 PMAQI
20th Jul 2026664 PMAQI
20th Jul 2026685 PMAQI
20th Jul 2026646 PMAQI
20th Jul 2026707 PMAQI
20th Jul 2026688 PMAQI
20th Jul 2026669 PMAQI
20th Jul 20267010 PMAQI
21st Jul 20266012 AMAQI
21st Jul 2026661 AMAQI
21st Jul 2026662 AMAQI
21st Jul 2026623 AMAQI
21st Jul 2026634 AMAQI
21st Jul 2026635 AMAQI
20°C13/27°C
21st Jul 2026706 AMAQI
21st Jul 2026687 AMAQI
21st Jul 2026728 AMAQI
21st Jul 2026669 AMAQI
21st Jul 20266410 AMAQI
21st Jul 20266811 AMAQI
21st Jul 20267012 PMAQI
21st Jul 2026701 PMAQI
21st Jul 2026632 PMAQI
21st Jul 2026693 PMAQI
21st Jul 2026704 PMAQI
21st Jul 2026625 PMAQI
21st Jul 2026596 PMAQI
21st Jul 2026547 PMAQI
21st Jul 2026408 PMAQI
21st Jul 2026349 PMAQI
21st Jul 20264210 PMAQI
21st Jul 20265011 PMAQI
22nd Jul 20264612 AMAQI
22nd Jul 2026221 AMAQI
22nd Jul 2026462 AMAQI
22nd Jul 2026463 AMAQI
22nd Jul 2026444 AMAQI
22nd Jul 2026425 AMAQI
22°C19/28°C
22nd Jul 2026406 AMAQI
22nd Jul 2026447 AMAQI
22nd Jul 2026428 AMAQI
22nd Jul 2026249 AMAQI
22nd Jul 20262610 AMAQI
22nd Jul 20263211 AMAQI
22nd Jul 20262512 PMAQI
22nd Jul 2026331 PMAQI
22nd Jul 2026402 PMAQI
22nd Jul 2026363 PMAQI
22nd Jul 2026274 PMAQI
22nd Jul 2026225 PMAQI
22nd Jul 2026256 PMAQI
22nd Jul 2026257 PMAQI
22nd Jul 2026298 PMAQI
22nd Jul 2026409 PMAQI
22nd Jul 20262510 PMAQI
22nd Jul 20262111 PMAQI
23rd Jul 20262312 AMAQI
23rd Jul 2026221 AMAQI
23rd Jul 2026252 AMAQI
23rd Jul 2026383 AMAQI
23rd Jul 2026254 AMAQI
23rd Jul 2026235 AMAQI
20°C16/24°C
23rd Jul 2026276 AMAQI
23rd Jul 2026327 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026529 AMAQI
23rd Jul 20263810 AMAQI
23rd Jul 20265011 AMAQI
23rd Jul 20264812 PMAQI
23rd Jul 2026501 PMAQI
23rd Jul 2026162 PMAQI
23rd Jul 2026163 PMAQI
23rd Jul 2026264 PMAQI
23rd Jul 2026335 PMAQI
23rd Jul 2026296 PMAQI
23rd Jul 2026217 PMAQI
23rd Jul 2026388 PMAQI
23rd Jul 2026349 PMAQI
23rd Jul 20262610 PMAQI
23rd Jul 20262811 PMAQI
24th Jul 20262912 AMAQI
24th Jul 2026331 AMAQI
24th Jul 2026292 AMAQI
24th Jul 2026323 AMAQI
24th Jul 2026244 AMAQI
24th Jul 2026345 AMAQI
18°C12/26°C
24th Jul 2026326 AMAQI
24th Jul 2026327 AMAQI
24th Jul 2026468 AMAQI
24th Jul 2026609 AMAQI
24th Jul 20263610 AMAQI
24th Jul 20263411 AMAQI
24th Jul 20263312 PMAQI
24th Jul 2026231 PMAQI
24th Jul 2026422 PMAQI
24th Jul 2026213 PMAQI
24th Jul 2026304 PMAQI
24th Jul 2026275 PMAQI
24th Jul 2026216 PMAQI
24th Jul 2026297 PMAQI
24th Jul 2026258 PMAQI
24th Jul 2026239 PMAQI
24th Jul 20262510 PMAQI
24th Jul 20264611 PMAQI
25th Jul 20263812 AMAQI
25th Jul 2026251 AMAQI
25th Jul 2026252 AMAQI
25th Jul 2026333 AMAQI
25th Jul 2026424 AMAQI
25th Jul 2026275 AMAQI
20°C13/28°C
25th Jul 2026306 AMAQI
25th Jul 2026367 AMAQI
25th Jul 2026328 AMAQI
25th Jul 2026229 AMAQI
25th Jul 20262310 AMAQI
25th Jul 20263111 AMAQI
25th Jul 20262412 PMAQI
25th Jul 2026381 PMAQI
25th Jul 2026342 PMAQI
25th Jul 2026273 PMAQI
25th Jul 2026464 PMAQI
25th Jul 2026425 PMAQI
25th Jul 2026426 PMAQI
25th Jul 2026307 PMAQI
25th Jul 2026368 PMAQI
25th Jul 2026449 PMAQI
25th Jul 20264410 PMAQI
25th Jul 20265011 PMAQI
26th Jul 20264912 AMAQI
26th Jul 2026451 AMAQI
26th Jul 2026462 AMAQI
26th Jul 2026423 AMAQI
26th Jul 2026444 AMAQI
26th Jul 2026425 AMAQI
21°C15/28°C
26th Jul 2026446 AMAQI
26th Jul 2026447 AMAQI
26th Jul 2026428 AMAQI
26th Jul 2026429 AMAQI
26th Jul 20264210 AMAQI
26th Jul 20264411 AMAQI
26th Jul 20264212 PMAQI
26th Jul 2026501 PMAQI
26th Jul 2026382 PMAQI
26th Jul 2026383 PMAQI
26th Jul 2026424 PMAQI
26th Jul 2026345 PMAQI
26th Jul 2026236 PMAQI
26th Jul 2026427 PMAQI
26th Jul 2026428 PMAQI
26th Jul 2026449 PMAQI
26th Jul 20264210 PMAQI
26th Jul 20264411 PMAQI
27th Jul 20264612 AMAQI
27th Jul 2026441 AMAQI
27th Jul 2026442 AMAQI
27th Jul 2026443 AMAQI
27th Jul 2026444 AMAQI
27th Jul 2026465 AMAQI
23°C19/28°C
27th Jul 2026446 AMAQI
27th Jul 2026507 AMAQI
27th Jul 2026468 AMAQI
27th Jul 2026489 AMAQI
27th Jul 20264410 AMAQI
27th Jul 20264811 AMAQI
27th Jul 20265112 PMAQI
27th Jul 2026521 PMAQI
27th Jul 2026522 PMAQI
27th Jul 2026513 PMAQI
27th Jul 2026494 PMAQI
27th Jul 2026515 PMAQI
27th Jul 2026526 PMAQI
27th Jul 2026537 PMAQI
27th Jul 2026528 PMAQI
27th Jul 2026529 PMAQI
27th Jul 20265210 PMAQI
27th Jul 20265411 PMAQI
28th Jul 20265512 AMAQI
28th Jul 2026571 AMAQI
28th Jul 2026592 AMAQI
28th Jul 2026603 AMAQI
28th Jul 2026594 AMAQI
28th Jul 2026585 AMAQI
24°C18/30°C
28th Jul 2026606 AMAQI
28th Jul 2026627 AMAQI
28th Jul 2026608 AMAQI
28th Jul 2026589 AMAQI
28th Jul 20265610 AMAQI
28th Jul 20265311 AMAQI
28th Jul 20264612 PMAQI
28th Jul 2026461 PMAQI
28th Jul 2026422 PMAQI
28th Jul 2026463 PMAQI
28th Jul 2026424 PMAQI
28th Jul 2026425 PMAQI
28th Jul 2026426 PMAQI
28th Jul 2026467 PMAQI
28th Jul 2026488 PMAQI
28th Jul 2026469 PMAQI
28th Jul 20264610 PMAQI
28th Jul 20264611 PMAQI
29th Jul 20265012 AMAQI
29th Jul 2026551 AMAQI
29th Jul 2026482 AMAQI
29th Jul 2026533 AMAQI
29th Jul 2026544 AMAQI
29th Jul 2026525 AMAQI
22°C20/27°C
29th Jul 2026526 AMAQI
29th Jul 2026447 AMAQI
29th Jul 2026448 AMAQI
29th Jul 2026469 AMAQI
29th Jul 20264410 AMAQI
29th Jul 20264211 AMAQI
29th Jul 20264212 PMAQI
29th Jul 2026301 PMAQI
29th Jul 2026252 PMAQI
29th Jul 2026503 PMAQI
29th Jul 2026264 PMAQI
29th Jul 2026245 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026387 PMAQI
29th Jul 2026278 PMAQI
29th Jul 2026239 PMAQI
29th Jul 20261810 PMAQI
29th Jul 20264611 PMAQI
30th Jul 20263612 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026232 AMAQI
30th Jul 2026253 AMAQI
30th Jul 2026344 AMAQI
30th Jul 2026225 AMAQI
20°C16/25°C
30th Jul 2026256 AMAQI
30th Jul 2026277 AMAQI
30th Jul 2026248 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20262012 PMAQI
30th Jul 2026201 PMAQI
30th Jul 2026142 PMAQI
30th Jul 2026203 PMAQI
30th Jul 2026224 PMAQI
30th Jul 2026195 PMAQI
30th Jul 2026256 PMAQI
30th Jul 2026617 PMAQI
30th Jul 2026608 PMAQI
30th Jul 2026469 PMAQI
30th Jul 20263610 PMAQI
30th Jul 20263811 PMAQI
31st Jul 20263812 AMAQI
31st Jul 2026441 AMAQI
31st Jul 2026402 AMAQI
31st Jul 2026443 AMAQI
31st Jul 2026464 AMAQI
31st Jul 2026445 AMAQI
21°C15/27°C
31st Jul 2026506 AMAQI
31st Jul 2026467 AMAQI
31st Jul 2026468 AMAQI
31st Jul 2026559 AMAQI
31st Jul 20266210 AMAQI
31st Jul 20265511 AMAQI
31st Jul 20264812 PMAQI
31st Jul 2026341 PMAQI
31st Jul 2026292 PMAQI
31st Jul 2026253 PMAQI
31st Jul 2026274 PMAQI
31st Jul 2026385 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026508 PMAQI
31st Jul 2026489 PMAQI
31st Jul 20264610 PMAQI
31st Jul 20264811 PMAQI
1st Aug 20264812 AMAQI
1st Aug 2026461 AMAQI
1st Aug 2026462 AMAQI
1st Aug 2026423 AMAQI
1st Aug 2026424 AMAQI
1st Aug 2026445 AMAQI
23°C16/29°C
1st Aug 2026406 AMAQI
1st Aug 2026467 AMAQI
1st Aug 2026428 AMAQI
1st Aug 2026429 AMAQI
1st Aug 20264010 AMAQI
1st Aug 20264411 AMAQI
1st Aug 20264412 PMAQI
1st Aug 2026421 PMAQI
1st Aug 2026422 PMAQI
1st Aug 2026253 PMAQI
1st Aug 2026224 PMAQI
1st Aug 2026445 PMAQI
1st Aug 2026426 PMAQI
1st Aug 2026407 PMAQI
1st Aug 2026368 PMAQI
1st Aug 2026539 PMAQI
1st Aug 20263210 PMAQI
1st Aug 20263811 PMAQI
2nd Aug 20264212 AMAQI
2nd Aug 2026421 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026503 AMAQI
2nd Aug 2026484 AMAQI
2nd Aug 2026465 AMAQI
23°C16/30°C
2nd Aug 2026446 AMAQI
2nd Aug 2026487 AMAQI
2nd Aug 2026448 AMAQI
2nd Aug 2026409 AMAQI
2nd Aug 20264210 AMAQI
2nd Aug 20264011 AMAQI
2nd Aug 20264612 PMAQI
2nd Aug 2026481 PMAQI
2nd Aug 2026492 PMAQI
2nd Aug 2026443 PMAQI
2nd Aug 2026364 PMAQI
2nd Aug 2026385 PMAQI
2nd Aug 2026386 PMAQI
2nd Aug 2026387 PMAQI
2nd Aug 2026218 PMAQI
2nd Aug 2026259 PMAQI
2nd Aug 20261910 PMAQI
2nd Aug 20262511 PMAQI
3rd Aug 20262512 AMAQI
3rd Aug 2026251 AMAQI
3rd Aug 2026252 AMAQI
3rd Aug 2026233 AMAQI
3rd Aug 2026254 AMAQI
3rd Aug 2026245 AMAQI
23°C21/27°C
3rd Aug 2026246 AMAQI
3rd Aug 2026267 AMAQI
3rd Aug 2026348 AMAQI
3rd Aug 2026369 AMAQI
3rd Aug 20263610 AMAQI
3rd Aug 20263611 AMAQI
3rd Aug 20264012 PMAQI
3rd Aug 2026401 PMAQI
3rd Aug 2026272 PMAQI
3rd Aug 2026203 PMAQI
3rd Aug 2026384 PMAQI
3rd Aug 2026145 PMAQI
3rd Aug 2026166 PMAQI
3rd Aug 2026187 PMAQI
3rd Aug 2026268 PMAQI
3rd Aug 2026269 PMAQI
3rd Aug 20262410 PMAQI
3rd Aug 20262411 PMAQI
4th Aug 20262412 AMAQI
4th Aug 2026221 AMAQI
4th Aug 2026242 AMAQI
4th Aug 2026253 AMAQI
4th Aug 2026264 AMAQI
4th Aug 2026215 AMAQI
22°C20/26°C
4th Aug 2026266 AMAQI
4th Aug 2026307 AMAQI
4th Aug 2026278 AMAQI
4th Aug 2026269 AMAQI
4th Aug 20263610 AMAQI
4th Aug 20263111 AMAQI
4th Aug 20262612 PMAQI
4th Aug 2026261 PMAQI
4th Aug 2026202 PMAQI
4th Aug 2026223 PMAQI
4th Aug 2026244 PMAQI
4th Aug 2026225 PMAQI
4th Aug 2026196 PMAQI
4th Aug 2026187 PMAQI
4th Aug 2026268 PMAQI
4th Aug 2026259 PMAQI
4th Aug 20263110 PMAQI
4th Aug 20264011 PMAQI
5th Aug 20265712 AMAQI
5th Aug 2026231 AMAQI
5th Aug 2026422 AMAQI
5th Aug 2026273 AMAQI
5th Aug 2026224 AMAQI
5th Aug 2026345 AMAQI
22°C14/29°C
5th Aug 2026246 AMAQI
5th Aug 2026387 AMAQI
5th Aug 2026258 AMAQI
5th Aug 2026269 AMAQI
5th Aug 20264210 AMAQI
5th Aug 20264211 AMAQI
5th Aug 20262412 PMAQI
5th Aug 2026271 PMAQI
5th Aug 2026422 PMAQI
5th Aug 2026213 PMAQI
5th Aug 2026214 PMAQI
5th Aug 2026325 PMAQI
5th Aug 2026266 PMAQI
5th Aug 2026247 PMAQI
5th Aug 2026268 PMAQI
5th Aug 2026249 PMAQI
5th Aug 20262410 PMAQI
5th Aug 20262411 PMAQI
6th Aug 20262012 AMAQI
6th Aug 2026321 AMAQI
6th Aug 2026462 AMAQI
6th Aug 2026253 AMAQI
6th Aug 2026504 AMAQI
6th Aug 2026365 AMAQI
24°C19/31°C
6th Aug 2026256 AMAQI
6th Aug 2026367 AMAQI
6th Aug 2026428 AMAQI
6th Aug 2026349 AMAQI
6th Aug 20264410 AMAQI
6th Aug 20263611 AMAQI
6th Aug 20263412 PMAQI
6th Aug 2026381 PMAQI
6th Aug 2026402 PMAQI
6th Aug 2026523 PMAQI
6th Aug 2026504 PMAQI
6th Aug 2026505 PMAQI
6th Aug 2026366 PMAQI
6th Aug 2026367 PMAQI
6th Aug 2026428 PMAQI
6th Aug 2026509 PMAQI
6th Aug 20265110 PMAQI
6th Aug 20265011 PMAQI
7th Aug 20262112 AMAQI
7th Aug 2026381 AMAQI
7th Aug 2026382 AMAQI
7th Aug 2026313 AMAQI
7th Aug 2026444 AMAQI
7th Aug 2026465 AMAQI
25°C21/31°C
7th Aug 2026466 AMAQI
7th Aug 2026507 AMAQI
7th Aug 2026488 AMAQI
7th Aug 2026449 AMAQI
7th Aug 20263810 AMAQI
7th Aug 20264011 AMAQI
7th Aug 20263612 PMAQI
7th Aug 2026461 PMAQI
7th Aug 2026382 PMAQI
7th Aug 2026423 PMAQI
7th Aug 2026454 PMAQI
7th Aug 2026385 PMAQI
7th Aug 2026406 PMAQI
7th Aug 2026367 PMAQI
7th Aug 2026388 PMAQI
7th Aug 2026449 PMAQI
7th Aug 20264010 PMAQI
7th Aug 20263311 PMAQI
8th Aug 20264212 AMAQI
8th Aug 2026461 AMAQI
8th Aug 2026522 AMAQI
8th Aug 2026383 AMAQI
8th Aug 2026384 AMAQI
8th Aug 2026305 AMAQI
25°C21/31°C
8th Aug 2026276 AMAQI
8th Aug 2026317 AMAQI
8th Aug 2026268 AMAQI
8th Aug 2026339 AMAQI
8th Aug 20262110 AMAQI
8th Aug 20263311 AMAQI
8th Aug 20262312 PMAQI
8th Aug 2026461 PMAQI
8th Aug 2026362 PMAQI
8th Aug 2026503 PMAQI
8th Aug 2026524 PMAQI
8th Aug 2026445 PMAQI
8th Aug 2026446 PMAQI
8th Aug 2026467 PMAQI
8th Aug 2026468 PMAQI
8th Aug 2026529 PMAQI
8th Aug 20265210 PMAQI
8th Aug 20265311 PMAQI
9th Aug 20265212 AMAQI
9th Aug 2026531 AMAQI
9th Aug 2026542 AMAQI
9th Aug 2026523 AMAQI
9th Aug 2026534 AMAQI
9th Aug 2026505 AMAQI
24°C20/29°C
9th Aug 2026446 AMAQI
9th Aug 2026427 AMAQI
9th Aug 2026548 AMAQI
9th Aug 2026409 AMAQI
9th Aug 20264410 AMAQI
9th Aug 20264811 AMAQI
9th Aug 20265112 PMAQI
9th Aug 2026481 PMAQI
9th Aug 2026512 PMAQI
9th Aug 2026463 PMAQI
9th Aug 2026464 PMAQI
9th Aug 2026445 PMAQI
9th Aug 2026446 PMAQI
9th Aug 2026517 PMAQI
9th Aug 2026508 PMAQI
9th Aug 2026469 PMAQI
9th Aug 20263810 PMAQI
9th Aug 20264211 PMAQI
10th Aug 20264012 AMAQI
10th Aug 2026441 AMAQI
10th Aug 2026462 AMAQI
10th Aug 2026483 AMAQI
10th Aug 2026444 AMAQI
10th Aug 2026485 AMAQI
25°C20/31°C
10th Aug 2026466 AMAQI
10th Aug 2026507 AMAQI
10th Aug 2026488 AMAQI
10th Aug 2026509 AMAQI
10th Aug 20264810 AMAQI
10th Aug 20264411 AMAQI
10th Aug 20264012 PMAQI
10th Aug 2026401 PMAQI
10th Aug 2026422 PMAQI
10th Aug 2026403 PMAQI
10th Aug 2026464 PMAQI
10th Aug 2026465 PMAQI
10th Aug 2026426 PMAQI
10th Aug 2026407 PMAQI
10th Aug 2026248 PMAQI
10th Aug 2026409 PMAQI
10th Aug 20264210 PMAQI
10th Aug 20264411 PMAQI
11th Aug 20264812 AMAQI
11th Aug 2026491 AMAQI
11th Aug 2026502 AMAQI
11th Aug 2026513 AMAQI
11th Aug 2026514 AMAQI
11th Aug 2026505 AMAQI
24°C19/31°C
11th Aug 2026516 AMAQI
11th Aug 2026527 AMAQI
11th Aug 2026538 AMAQI
11th Aug 2026509 AMAQI
11th Aug 20265010 AMAQI
11th Aug 20264911 AMAQI
11th Aug 20265212 PMAQI
11th Aug 2026541 PMAQI
11th Aug 2026592 PMAQI
11th Aug 2026583 PMAQI
11th Aug 2026604 PMAQI
11th Aug 2026555 PMAQI
11th Aug 2026536 PMAQI
11th Aug 2026537 PMAQI
11th Aug 2026528 PMAQI
11th Aug 2026529 PMAQI
11th Aug 20265010 PMAQI
11th Aug 20265111 PMAQI
12th Aug 20265012 AMAQI
12th Aug 2026481 AMAQI
12th Aug 2026512 AMAQI
12th Aug 2026503 AMAQI
12th Aug 2026494 AMAQI
12th Aug 2026485 AMAQI
22°C19/26°C
12th Aug 2026506 AMAQI
12th Aug 2026487 AMAQI
12th Aug 2026488 AMAQI
12th Aug 2026489 AMAQI
12th Aug 20264410 AMAQI
12th Aug 20264211 AMAQI
12th Aug 20264412 PMAQI
12th Aug 2026461 PMAQI
12th Aug 2026442 PMAQI
12th Aug 2026463 PMAQI
12th Aug 2026504 PMAQI
12th Aug 2026505 PMAQI
12th Aug 2026526 PMAQI
12th Aug 2026517 PMAQI
12th Aug 2026508 PMAQI
12th Aug 2026529 PMAQI
12th Aug 20265110 PMAQI
12th Aug 20265111 PMAQI
13th Aug 20264812 AMAQI
13th Aug 2026481 AMAQI
13th Aug 2026502 AMAQI
13th Aug 2026463 AMAQI
13th Aug 2026444 AMAQI
13th Aug 2026465 AMAQI
22°C18/28°C
13th Aug 2026506 AMAQI
13th Aug 2026467 AMAQI
13th Aug 2026468 AMAQI
13th Aug 2026509 AMAQI
13th Aug 20264810 AMAQI
13th Aug 20264611 AMAQI
13th Aug 20264912 PMAQI
13th Aug 2026511 PMAQI
13th Aug 2026442 PMAQI
13th Aug 2026463 PMAQI
13th Aug 2026484 PMAQI
13th Aug 2026525 PMAQI
13th Aug 2026566 PMAQI
13th Aug 2026577 PMAQI
13th Aug 2026538 PMAQI
13th Aug 2026539 PMAQI
13th Aug 20265310 PMAQI
13th Aug 20265211 PMAQI
14th Aug 20265412 AMAQI
14th Aug 2026531 AMAQI
14th Aug 2026542 AMAQI
14th Aug 2026523 AMAQI
14th Aug 2026524 AMAQI
14th Aug 2026545 AMAQI
24°C19/30°C
14th Aug 2026526 AMAQI
14th Aug 2026527 AMAQI
14th Aug 2026538 AMAQI
14th Aug 2026529 AMAQI
14th Aug 20265210 AMAQI
14th Aug 20265311 AMAQI
14th Aug 20265212 PMAQI
14th Aug 2026521 PMAQI
14th Aug 2026502 PMAQI
14th Aug 2026483 PMAQI
14th Aug 2026484 PMAQI
14th Aug 2026525 PMAQI
14th Aug 2026506 PMAQI
14th Aug 2026547 PMAQI
14th Aug 2026518 PMAQI
14th Aug 2026519 PMAQI
14th Aug 20265210 PMAQI
14th Aug 20265611 PMAQI
15th Aug 20265612 AMAQI
15th Aug 2026551 AMAQI
15th Aug 2026572 AMAQI
15th Aug 2026563 AMAQI
15th Aug 2026554 AMAQI
15th Aug 2026585 AMAQI
24°C18/30°C
15th Aug 2026556 AMAQI
15th Aug 2026537 AMAQI
15th Aug 2026538 AMAQI
15th Aug 2026489 AMAQI
15th Aug 20264410 AMAQI
15th Aug 20264011 AMAQI
15th Aug 20264012 PMAQI
15th Aug 2026481 PMAQI
15th Aug 2026502 PMAQI
15th Aug 2026483 PMAQI
15th Aug 2026504 PMAQI
15th Aug 2026525 PMAQI
15th Aug 2026426 PMAQI
15th Aug 2026427 PMAQI
15th Aug 2026408 PMAQI
15th Aug 2026449 PMAQI
15th Aug 20264610 PMAQI
15th Aug 20264811 PMAQI
16th Aug 20264812 AMAQI
16th Aug 2026481 AMAQI
16th Aug 2026502 AMAQI
16th Aug 2026513 AMAQI
16th Aug 2026524 AMAQI
16th Aug 2026515 AMAQI
21°C17/29°C
16th Aug 2026516 AMAQI
6 AM16th Aug 2026497 AMAQI
16th Aug 2026518 AMAQI
16th Aug 2026509 AMAQI
16th Aug 20265110 AMAQI
16th Aug 20264811 AMAQI
16th Aug 20264612 PMAQI
16th Aug 2026441 PMAQI
1 PM16th Aug 2026442 PMAQI
16th Aug 2026343 PMAQI
16th Aug 2026444 PMAQI
16th Aug 2026505 PMAQI
16th Aug 2026446 PMAQI
16th Aug 2026407 PMAQI
16th Aug 2026298 PMAQI
8 PM16th Aug 2026429 PMAQI
16th Aug 20263310 PMAQI
16th Aug 20262911 PMAQI
1 AM
5 AM
20°C17/25°C
Day time
Avg. Highest Time
7 AM - 11 AM
46AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
6 PM - 8 PM
42AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 11 AM (Avg. 46), while the lowest AQI was between 6 PM to 8 PM (Avg. 42).
Night time
Avg. Highest Time
2 AM - 9 PM
44AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
10 PM
41AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 2 AM to 9 PM (Avg. 44), while the lowest AQI was between 10 PM to 10 PM (Avg. 41).
2026 Days Vs Air Quality
Altoona, Pennsylvania, United States
2026
90%
202
10%
22
Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)
Good
202 DaysModerate
22 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2026, 90% of 228 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Altoona, Pennsylvania, United States
AQI levels in 2026
AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
13AQI (US)
13AQI (US)
2nd January 2026
15AQI (US)
15AQI (US)
3rd January 2026
39AQI (US)
39AQI (US)
4th January 2026
44AQI (US)
44AQI (US)
5th January 2026
47AQI (US)
47AQI (US)
6th January 2026
68AQI (US)
68AQI (US)
7th January 2026
38AQI (US)
38AQI (US)
8th January 2026
35AQI (US)
35AQI (US)
9th January 2026
44AQI (US)
44AQI (US)
10th January 2026
17AQI (US)
17AQI (US)
11th January 2026
17AQI (US)
17AQI (US)
12th January 2026
16AQI (US)
16AQI (US)
13th January 2026
23AQI (US)
23AQI (US)
14th January 2026
18AQI (US)
18AQI (US)
15th January 2026
12AQI (US)
12AQI (US)
16th January 2026
16AQI (US)
16AQI (US)
17th January 2026
29AQI (US)
29AQI (US)
18th January 2026
26AQI (US)
26AQI (US)
19th January 2026
24AQI (US)
24AQI (US)
20th January 2026
20AQI (US)
20AQI (US)
21st January 2026
39AQI (US)
39AQI (US)
22nd January 2026
58AQI (US)
58AQI (US)
23rd January 2026
60AQI (US)
60AQI (US)
24th January 2026
49AQI (US)
49AQI (US)
25th January 2026
53AQI (US)
53AQI (US)
26th January 2026
48AQI (US)
48AQI (US)
27th January 2026
37AQI (US)
37AQI (US)
28th January 2026
45AQI (US)
45AQI (US)
29th January 2026
54AQI (US)
54AQI (US)
30th January 2026
62AQI (US)
62AQI (US)
31st January 2026
44AQI (US)
44AQI (US)
1st February 2026
46AQI (US)
46AQI (US)
2nd February 2026
51AQI (US)
51AQI (US)
3rd February 2026
48AQI (US)
48AQI (US)
4th February 2026
44AQI (US)
44AQI (US)
5th February 2026
50AQI (US)
50AQI (US)
6th February 2026
44AQI (US)
44AQI (US)
7th February 2026
39AQI (US)
39AQI (US)
8th February 2026
42AQI (US)
42AQI (US)
9th February 2026
48AQI (US)
48AQI (US)
10th February 2026
45AQI (US)
45AQI (US)
11th February 2026
39AQI (US)
39AQI (US)
12th February 2026
39AQI (US)
39AQI (US)
13th February 2026
47AQI (US)
47AQI (US)
14th February 2026
48AQI (US)
48AQI (US)
15th February 2026
39AQI (US)
39AQI (US)
16th February 2026
44AQI (US)
44AQI (US)
17th February 2026
42AQI (US)
42AQI (US)
18th February 2026
42AQI (US)
42AQI (US)
19th February 2026
43AQI (US)
43AQI (US)
20th February 2026
39AQI (US)
39AQI (US)
21st February 2026
36AQI (US)
36AQI (US)
22nd February 2026
37AQI (US)
37AQI (US)
23rd February 2026
38AQI (US)
38AQI (US)
24th February 2026
44AQI (US)
44AQI (US)
25th February 2026
44AQI (US)
44AQI (US)
26th February 2026
33AQI (US)
33AQI (US)
27th February 2026
34AQI (US)
34AQI (US)
28th February 2026
33AQI (US)
33AQI (US)
1st March 2026
37AQI (US)
37AQI (US)
2nd March 2026
55AQI (US)
55AQI (US)
3rd March 2026
44AQI (US)
44AQI (US)
4th March 2026
45AQI (US)
45AQI (US)
5th March 2026
38AQI (US)
38AQI (US)
6th March 2026
30AQI (US)
30AQI (US)
7th March 2026
38AQI (US)
38AQI (US)
8th March 2026
37AQI (US)
37AQI (US)
9th March 2026
36AQI (US)
36AQI (US)
10th March 2026
32AQI (US)
32AQI (US)
11th March 2026
42AQI (US)
42AQI (US)
12th March 2026
38AQI (US)
38AQI (US)
13th March 2026
40AQI (US)
40AQI (US)
14th March 2026
35AQI (US)
35AQI (US)
15th March 2026
32AQI (US)
32AQI (US)
16th March 2026
36AQI (US)
36AQI (US)
17th March 2026
34AQI (US)
34AQI (US)
18th March 2026
32AQI (US)
32AQI (US)
19th March 2026
34AQI (US)
34AQI (US)
20th March 2026
42AQI (US)
42AQI (US)
21st March 2026
37AQI (US)
37AQI (US)
22nd March 2026
34AQI (US)
34AQI (US)
23rd March 2026
40AQI (US)
40AQI (US)
24th March 2026
37AQI (US)
37AQI (US)
25th March 2026
32AQI (US)
32AQI (US)
26th March 2026
26AQI (US)
26AQI (US)
27th March 2026
30AQI (US)
30AQI (US)
28th March 2026
31AQI (US)
31AQI (US)
29th March 2026
26AQI (US)
26AQI (US)
30th March 2026
25AQI (US)
25AQI (US)
31st March 2026
24AQI (US)
24AQI (US)
1st April 2026
29AQI (US)
29AQI (US)
2nd April 2026
30AQI (US)
30AQI (US)
3rd April 2026
28AQI (US)
28AQI (US)
4th April 2026
31AQI (US)
31AQI (US)
5th April 2026
29AQI (US)
29AQI (US)
6th April 2026
30AQI (US)
30AQI (US)
7th April 2026
29AQI (US)
29AQI (US)
8th April 2026
39AQI (US)
39AQI (US)
9th April 2026
28AQI (US)
28AQI (US)
10th April 2026
30AQI (US)
30AQI (US)
11th April 2026
31AQI (US)
31AQI (US)
12th April 2026
24AQI (US)
24AQI (US)
13th April 2026
29AQI (US)
29AQI (US)
14th April 2026
32AQI (US)
32AQI (US)
15th April 2026
33AQI (US)
33AQI (US)
16th April 2026
30AQI (US)
30AQI (US)
17th April 2026
18th April 2026
30AQI (US)
30AQI (US)
19th April 2026
32AQI (US)
32AQI (US)
20th April 2026
29AQI (US)
29AQI (US)
21st April 2026
27AQI (US)
27AQI (US)
22nd April 2026
23rd April 2026
23AQI (US)
23AQI (US)
24th April 2026
24AQI (US)
24AQI (US)
25th April 2026
28AQI (US)
28AQI (US)
26th April 2026
33AQI (US)
33AQI (US)
27th April 2026
27AQI (US)
27AQI (US)
28th April 2026
26AQI (US)
26AQI (US)
29th April 2026
26AQI (US)
26AQI (US)
30th April 2026
27AQI (US)
27AQI (US)
1st May 2026
26AQI (US)
26AQI (US)
2nd May 2026
23AQI (US)
23AQI (US)
3rd May 2026
21AQI (US)
21AQI (US)
4th May 2026
36AQI (US)
36AQI (US)
5th May 2026
39AQI (US)
39AQI (US)
6th May 2026
30AQI (US)
30AQI (US)
7th May 2026
27AQI (US)
27AQI (US)
8th May 2026
29AQI (US)
29AQI (US)
9th May 2026
10th May 2026
31AQI (US)
31AQI (US)
11th May 2026
28AQI (US)
28AQI (US)
12th May 2026
31AQI (US)
31AQI (US)
13th May 2026
30AQI (US)
30AQI (US)
14th May 2026
25AQI (US)
25AQI (US)
15th May 2026
46AQI (US)
46AQI (US)
16th May 2026
52AQI (US)
52AQI (US)
17th May 2026
56AQI (US)
56AQI (US)
18th May 2026
58AQI (US)
58AQI (US)
19th May 2026
56AQI (US)
56AQI (US)
20th May 2026
51AQI (US)
51AQI (US)
21st May 2026
45AQI (US)
45AQI (US)
22nd May 2026
44AQI (US)
44AQI (US)
23rd May 2026
50AQI (US)
50AQI (US)
24th May 2026
47AQI (US)
47AQI (US)
25th May 2026
45AQI (US)
45AQI (US)
26th May 2026
29AQI (US)
29AQI (US)
27th May 2026
26AQI (US)
26AQI (US)
28th May 2026
18AQI (US)
18AQI (US)
29th May 2026
18AQI (US)
18AQI (US)
30th May 2026
20AQI (US)
20AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
27AQI (US)
27AQI (US)
2nd June 2026
23AQI (US)
23AQI (US)
3rd June 2026
18AQI (US)
18AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
26AQI (US)
26AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
22AQI (US)
22AQI (US)
8th June 2026
22AQI (US)
22AQI (US)
9th June 2026
21AQI (US)
21AQI (US)
10th June 2026
26AQI (US)
26AQI (US)
11th June 2026
26AQI (US)
26AQI (US)
12th June 2026
26AQI (US)
26AQI (US)
13th June 2026
22AQI (US)
22AQI (US)
14th June 2026
23AQI (US)
23AQI (US)
15th June 2026
24AQI (US)
24AQI (US)
16th June 2026
26AQI (US)
26AQI (US)
17th June 2026
25AQI (US)
25AQI (US)
18th June 2026
27AQI (US)
27AQI (US)
19th June 2026
21AQI (US)
21AQI (US)
20th June 2026
19AQI (US)
19AQI (US)
21st June 2026
16AQI (US)
16AQI (US)
22nd June 2026
24AQI (US)
24AQI (US)
23rd June 2026
18AQI (US)
18AQI (US)
24th June 2026
20AQI (US)
20AQI (US)
25th June 2026
25AQI (US)
25AQI (US)
26th June 2026
25AQI (US)
25AQI (US)
27th June 2026
29AQI (US)
29AQI (US)
28th June 2026
28AQI (US)
28AQI (US)
29th June 2026
24AQI (US)
24AQI (US)
30th June 2026
27AQI (US)
27AQI (US)
1st July 2026
31AQI (US)
31AQI (US)
2nd July 2026
58AQI (US)
58AQI (US)
3rd July 2026
42AQI (US)
42AQI (US)
4th July 2026
31AQI (US)
31AQI (US)
5th July 2026
31AQI (US)
31AQI (US)
6th July 2026
22AQI (US)
22AQI (US)
7th July 2026
23AQI (US)
23AQI (US)
8th July 2026
21AQI (US)
21AQI (US)
9th July 2026
26AQI (US)
26AQI (US)
10th July 2026
31AQI (US)
31AQI (US)
11th July 2026
23AQI (US)
23AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
28AQI (US)
28AQI (US)
14th July 2026
30AQI (US)
30AQI (US)
15th July 2026
30AQI (US)
30AQI (US)
16th July 2026
31AQI (US)
31AQI (US)
17th July 2026
70AQI (US)
70AQI (US)
18th July 2026
63AQI (US)
63AQI (US)
19th July 2026
62AQI (US)
62AQI (US)
20th July 2026
65AQI (US)
65AQI (US)
21st July 2026
61AQI (US)
61AQI (US)
22nd July 2026
33AQI (US)
33AQI (US)
23rd July 2026
32AQI (US)
32AQI (US)
24th July 2026
32AQI (US)
32AQI (US)
25th July 2026
34AQI (US)
34AQI (US)
26th July 2026
42AQI (US)
42AQI (US)
27th July 2026
49AQI (US)
49AQI (US)
28th July 2026
51AQI (US)
51AQI (US)
29th July 2026
40AQI (US)
40AQI (US)
30th July 2026
29AQI (US)
29AQI (US)
31st July 2026
44AQI (US)
44AQI (US)
1st August 2026
41AQI (US)
41AQI (US)
2nd August 2026
40AQI (US)
40AQI (US)
3rd August 2026
27AQI (US)
27AQI (US)
4th August 2026
26AQI (US)
26AQI (US)
5th August 2026
30AQI (US)
30AQI (US)
6th August 2026
40AQI (US)
40AQI (US)
7th August 2026
40AQI (US)
40AQI (US)
8th August 2026
40AQI (US)
40AQI (US)
9th August 2026
48AQI (US)
48AQI (US)
10th August 2026
43AQI (US)
43AQI (US)
11th August 2026
52AQI (US)
52AQI (US)
12th August 2026
48AQI (US)
48AQI (US)
13th August 2026
49AQI (US)
49AQI (US)
14th August 2026
52AQI (US)
52AQI (US)
15th August 2026
49AQI (US)
49AQI (US)
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
36AQI (US)
42AQI (US)
35AQI (US)
29AQI (US)
35AQI (US)
24AQI (US)
38AQI (US)
42AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202635AQI (US)
25
6
27
1
30
1
28
25
5
30
24
7
13
2
202
22
Highest AQI (US) recorded in
February42AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202533AQI (US)
29
2
28
28
3
28
2
31
18
12
23
8
22
9
30
31
28
2
28
3
324
41
Highest AQI (US) recorded in
June46AQI (US)
Lowest AQI (US) recorded in
May23AQI (US)
202430AQI (US)
28
3
26
3
31
30
31
27
3
29
2
26
5
30
31
30
28
3
347
19
Highest AQI (US) recorded in
July37AQI (US)
Lowest AQI (US) recorded in
May25AQI (US)
202339AQI (US)
28
3
24
4
30
1
24
6
22
9
12
12
3
3
23
7
1
26
5
30
31
26
3
26
5
302
55
4
3
Highest AQI (US) recorded in
June70AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
202236AQI (US)
22
6
16
6
26
4
28
2
28
2
25
2
21
3
2
28
1
29
2
27
3
21
10
273
41
Highest AQI (US) recorded in
December42AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
202138AQI (US)
21
5
17
5
13
3
23
1
28
3
24
5
17
11
2
22
9
28
2
31
24
6
23
8
271
58
2
Highest AQI (US) recorded in
July50AQI (US)
Lowest AQI (US) recorded in
October30AQI (US)
202035AQI (US)
13
21
18
28
28
3
29
2
29
1
30
22
6
24
7
242
19
Highest AQI (US) recorded in
November41AQI (US)
Lowest AQI (US) recorded in
October31AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2023(Avg.)
39AQI (US)Least Polluted Year Recorded
2024(Avg.)
30AQI (US)Altoona's annual 2026 AQI (US) (35) shows an average percentage change of 0.2% (worsened AQI (US)) compared to previous years: 2020 (35), 2021 (38), 2022 (36), 2023 (39), 2024 (30), 2025 (33).
