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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Rozhen Kfs, Chepelare, Smolyan, Bulgaria 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

Rozhen Kfs, Chepelare, Smolyan, Bulgaria

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
13th Aug 2026
53AQI
Lowest AQI recorded on
9th Aug 2023
33AQI

Same Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 42 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 17th Aug - 18th Aug 2026

Rozhen Kfs, Chepelare, Smolyan, Bulgaria

AQI
Day
Night
.

6 AM17th Aug 2026

8 PM

5 AM18th Aug 2026

Day time
Avg. Highest Time
1PM17th Aug

54AQI

Avg. Lowest Time
10AM17th Aug

23AQI

Night time
Avg. Highest Time
11PM17th Aug

65AQI

Avg. Lowest Time
3AM18th Aug

27AQI

In the last 24 hours,

Rozhen Kfs's AQI reached its highest point of 65 at 11 PM during the Night, while the lowest point, 23, was recorded at 10 AM during the Day between 17th Aug and 18th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Rozhen Kfs, Chepelare, Smolyan, Bulgaria

JulAug
20th - 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 - 17th17th - 18th18th
Day
Night
20th Jul 2026546 AMAQI
20th Jul 2026387 AMAQI
20th Jul 2026528 AMAQI
20th Jul 2026539 AMAQI
20th Jul 20265410 AMAQI
20th Jul 20264011 AMAQI
20th Jul 20263612 PMAQI
20th Jul 2026211 PMAQI
20th Jul 2026402 PMAQI
20th Jul 2026293 PMAQI
20th Jul 2026204 PMAQI
20th Jul 2026235 PMAQI
20th Jul 2026396 PMAQI
20th Jul 2026247 PMAQI
20th Jul 2026328 PMAQI
20th Jul 2026229 PMAQI
20th Jul 20264410 PMAQI
20th Jul 20265011 PMAQI
21st Jul 20264012 AMAQI
21st Jul 2026521 AMAQI
21st Jul 2026522 AMAQI
21st Jul 2026443 AMAQI
21st Jul 2026294 AMAQI
21st Jul 2026525 AMAQI

20°C17/26°C

21st Jul 2026527 AMAQI
21st Jul 2026528 AMAQI
21st Jul 2026529 AMAQI
21st Jul 20262010 AMAQI
21st Jul 20263611 AMAQI
21st Jul 20264212 PMAQI
21st Jul 2026231 PMAQI
21st Jul 2026522 PMAQI
21st Jul 2026423 PMAQI
21st Jul 2026514 PMAQI
21st Jul 2026385 PMAQI
21st Jul 2026296 PMAQI
21st Jul 2026237 PMAQI
21st Jul 2026388 PMAQI
21st Jul 2026299 PMAQI
21st Jul 20262910 PMAQI
21st Jul 20265411 PMAQI
22nd Jul 20265712 AMAQI
22nd Jul 2026401 AMAQI
22nd Jul 2026382 AMAQI
22nd Jul 2026213 AMAQI
22nd Jul 2026404 AMAQI
22nd Jul 2026405 AMAQI

19°C14/25°C

22nd Jul 2026566 AMAQI
22nd Jul 2026427 AMAQI
22nd Jul 2026588 AMAQI
22nd Jul 2026429 AMAQI
22nd Jul 20265810 AMAQI
22nd Jul 20264911 AMAQI
22nd Jul 20262312 PMAQI
22nd Jul 2026381 PMAQI
22nd Jul 2026572 PMAQI
22nd Jul 2026583 PMAQI
22nd Jul 2026254 PMAQI
22nd Jul 2026565 PMAQI
22nd Jul 2026566 PMAQI
22nd Jul 2026567 PMAQI
22nd Jul 2026568 PMAQI
22nd Jul 2026569 PMAQI
22nd Jul 20262110 PMAQI
22nd Jul 20266011 PMAQI
23rd Jul 20262512 AMAQI
23rd Jul 2026601 AMAQI
23rd Jul 2026622 AMAQI
23rd Jul 2026403 AMAQI
23rd Jul 2026404 AMAQI
23rd Jul 2026525 AMAQI

17°C12/24°C

23rd Jul 2026526 AMAQI
23rd Jul 2026517 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026489 AMAQI
23rd Jul 20264610 AMAQI
23rd Jul 20262711 AMAQI
23rd Jul 20263812 PMAQI
23rd Jul 2026541 PMAQI
23rd Jul 2026462 PMAQI
23rd Jul 2026383 PMAQI
23rd Jul 2026384 PMAQI
23rd Jul 2026385 PMAQI
23rd Jul 2026426 PMAQI
23rd Jul 2026327 PMAQI
23rd Jul 2026428 PMAQI
23rd Jul 2026429 PMAQI
23rd Jul 20264210 PMAQI
23rd Jul 20264411 PMAQI
24th Jul 20264612 AMAQI
24th Jul 2026501 AMAQI
24th Jul 2026502 AMAQI
24th Jul 2026233 AMAQI
24th Jul 2026464 AMAQI
24th Jul 2026365 AMAQI

14°C9/20°C

24th Jul 2026516 AMAQI
24th Jul 2026487 AMAQI
24th Jul 2026468 AMAQI
24th Jul 2026509 AMAQI
24th Jul 20263810 AMAQI
24th Jul 20265011 AMAQI
24th Jul 20265012 PMAQI
24th Jul 2026531 PMAQI
24th Jul 2026422 PMAQI
24th Jul 2026503 PMAQI
24th Jul 2026514 PMAQI
24th Jul 2026525 PMAQI
24th Jul 2026526 PMAQI
24th Jul 2026527 PMAQI
24th Jul 2026538 PMAQI
24th Jul 2026529 PMAQI
24th Jul 20265410 PMAQI
24th Jul 20263811 PMAQI
25th Jul 20265312 AMAQI
25th Jul 2026541 AMAQI
25th Jul 2026522 AMAQI
25th Jul 2026523 AMAQI
25th Jul 2026504 AMAQI
25th Jul 2026505 AMAQI

12°C9/17°C

25th Jul 2026506 AMAQI
25th Jul 2026507 AMAQI
25th Jul 2026348 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20264610 AMAQI
25th Jul 20264411 AMAQI
25th Jul 20264412 PMAQI
25th Jul 2026441 PMAQI
25th Jul 2026422 PMAQI
25th Jul 2026443 PMAQI
25th Jul 2026424 PMAQI
25th Jul 2026405 PMAQI
25th Jul 2026426 PMAQI
25th Jul 2026397 PMAQI
25th Jul 2026448 PMAQI
25th Jul 2026519 PMAQI
25th Jul 20264410 PMAQI
25th Jul 20264811 PMAQI
26th Jul 20263412 AMAQI
26th Jul 2026441 AMAQI
26th Jul 2026422 AMAQI
26th Jul 2026463 AMAQI
26th Jul 2026464 AMAQI
26th Jul 2026465 AMAQI

12°C8/16°C

26th Jul 2026506 AMAQI
26th Jul 2026547 AMAQI
26th Jul 2026508 AMAQI
26th Jul 2026469 AMAQI
26th Jul 20264610 AMAQI
26th Jul 20265011 AMAQI
26th Jul 20264612 PMAQI
26th Jul 2026511 PMAQI
26th Jul 2026382 PMAQI
26th Jul 2026463 PMAQI
26th Jul 2026464 PMAQI
26th Jul 2026465 PMAQI
26th Jul 2026626 PMAQI
26th Jul 2026467 PMAQI
26th Jul 2026468 PMAQI
26th Jul 2026499 PMAQI
26th Jul 20265210 PMAQI
26th Jul 20263811 PMAQI
27th Jul 20263812 AMAQI
27th Jul 2026561 AMAQI
27th Jul 2026542 AMAQI
27th Jul 2026273 AMAQI
27th Jul 2026524 AMAQI
27th Jul 2026495 AMAQI

16°C10/23°C

27th Jul 2026526 AMAQI
27th Jul 2026527 AMAQI
27th Jul 2026528 AMAQI
27th Jul 2026529 AMAQI
27th Jul 20265210 AMAQI
27th Jul 20263611 AMAQI
27th Jul 20265212 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026422 PMAQI
27th Jul 2026523 PMAQI
27th Jul 2026524 PMAQI
27th Jul 2026485 PMAQI
27th Jul 2026516 PMAQI
27th Jul 2026507 PMAQI
27th Jul 2026538 PMAQI
27th Jul 2026509 PMAQI
27th Jul 20265010 PMAQI
27th Jul 20264611 PMAQI
28th Jul 20265212 AMAQI
28th Jul 2026541 AMAQI
28th Jul 2026272 AMAQI
28th Jul 2026293 AMAQI
28th Jul 2026214 AMAQI
28th Jul 2026405 AMAQI

18°C14/24°C

28th Jul 2026536 AMAQI
28th Jul 2026547 AMAQI
28th Jul 2026558 AMAQI
28th Jul 2026529 AMAQI
28th Jul 20265410 AMAQI
28th Jul 20265311 AMAQI
28th Jul 20265812 PMAQI
28th Jul 2026581 PMAQI
28th Jul 2026562 PMAQI
28th Jul 2026423 PMAQI
28th Jul 2026474 PMAQI
28th Jul 2026385 PMAQI
28th Jul 2026406 PMAQI
28th Jul 2026587 PMAQI
28th Jul 2026368 PMAQI
28th Jul 2026239 PMAQI
28th Jul 20262310 PMAQI
28th Jul 20265011 PMAQI
29th Jul 20263612 AMAQI
29th Jul 2026291 AMAQI
29th Jul 2026292 AMAQI
29th Jul 2026383 AMAQI
29th Jul 2026444 AMAQI
29th Jul 2026235 AMAQI

19°C15/24°C

29th Jul 2026366 AMAQI
29th Jul 2026527 AMAQI
29th Jul 2026528 AMAQI
29th Jul 2026509 AMAQI
29th Jul 20263610 AMAQI
29th Jul 20265111 AMAQI
29th Jul 20265212 PMAQI
29th Jul 2026521 PMAQI
29th Jul 2026502 PMAQI
29th Jul 2026453 PMAQI
29th Jul 2026504 PMAQI
29th Jul 2026465 PMAQI
29th Jul 2026546 PMAQI
29th Jul 2026427 PMAQI
29th Jul 2026498 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20262110 PMAQI
29th Jul 20262311 PMAQI
30th Jul 20262512 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026202 AMAQI
30th Jul 2026193 AMAQI
30th Jul 2026214 AMAQI
30th Jul 2026215 AMAQI

19°C13/24°C

30th Jul 2026216 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026288 AMAQI
30th Jul 2026169 AMAQI
30th Jul 20261610 AMAQI
30th Jul 20261811 AMAQI
30th Jul 20263012 PMAQI
30th Jul 2026271 PMAQI
30th Jul 2026192 PMAQI
30th Jul 2026173 PMAQI
30th Jul 2026174 PMAQI
30th Jul 2026265 PMAQI
30th Jul 2026216 PMAQI
30th Jul 2026217 PMAQI
30th Jul 2026168 PMAQI
30th Jul 2026219 PMAQI
30th Jul 20262110 PMAQI
30th Jul 20262511 PMAQI
31st Jul 20262512 AMAQI
31st Jul 2026251 AMAQI
31st Jul 2026122 AMAQI
31st Jul 2026143 AMAQI
31st Jul 2026184 AMAQI
31st Jul 2026275 AMAQI

18°C12/24°C

31st Jul 2026366 AMAQI
31st Jul 2026297 AMAQI
31st Jul 2026288 AMAQI
31st Jul 2026349 AMAQI
31st Jul 20262210 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262912 PMAQI
31st Jul 2026301 PMAQI
31st Jul 2026212 PMAQI
31st Jul 2026343 PMAQI
31st Jul 2026424 PMAQI
31st Jul 2026345 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026347 PMAQI
31st Jul 2026348 PMAQI
31st Jul 2026429 PMAQI
31st Jul 20264810 PMAQI
31st Jul 20262511 PMAQI
1st Aug 20265212 AMAQI
1st Aug 2026361 AMAQI
1st Aug 2026232 AMAQI
1st Aug 2026423 AMAQI
1st Aug 2026424 AMAQI
1st Aug 2026365 AMAQI

18°C13/23°C

1st Aug 2026216 AMAQI
1st Aug 2026237 AMAQI
1st Aug 2026388 AMAQI
1st Aug 2026469 AMAQI
1st Aug 20264410 AMAQI
1st Aug 20262711 AMAQI
1st Aug 20263412 PMAQI
1st Aug 2026461 PMAQI
1st Aug 2026462 PMAQI
1st Aug 2026383 PMAQI
1st Aug 2026344 PMAQI
1st Aug 2026305 PMAQI
1st Aug 2026346 PMAQI
1st Aug 2026237 PMAQI
1st Aug 2026318 PMAQI
1st Aug 2026239 PMAQI
1st Aug 20265010 PMAQI
1st Aug 20265211 PMAQI
2nd Aug 20265212 AMAQI
2nd Aug 2026521 AMAQI
2nd Aug 2026232 AMAQI
2nd Aug 2026233 AMAQI
2nd Aug 2026464 AMAQI
2nd Aug 2026445 AMAQI

17°C12/22°C

2nd Aug 2026366 AMAQI
2nd Aug 2026367 AMAQI
2nd Aug 2026238 AMAQI
2nd Aug 2026329 AMAQI
2nd Aug 20263210 AMAQI
2nd Aug 20264611 AMAQI
2nd Aug 20263212 PMAQI
2nd Aug 2026421 PMAQI
2nd Aug 2026422 PMAQI
2nd Aug 2026423 PMAQI
2nd Aug 2026444 PMAQI
2nd Aug 2026525 PMAQI
2nd Aug 2026466 PMAQI
2nd Aug 2026467 PMAQI
2nd Aug 2026488 PMAQI
2nd Aug 2026329 PMAQI
2nd Aug 20265010 PMAQI
2nd Aug 20265211 PMAQI
3rd Aug 20263812 AMAQI
3rd Aug 2026521 AMAQI
3rd Aug 2026522 AMAQI
3rd Aug 2026273 AMAQI
3rd Aug 2026384 AMAQI
3rd Aug 2026215 AMAQI

17°C11/23°C

3rd Aug 2026216 AMAQI
3rd Aug 2026507 AMAQI
3rd Aug 2026468 AMAQI
3rd Aug 2026489 AMAQI
3rd Aug 20265010 AMAQI
3rd Aug 20262111 AMAQI
3rd Aug 20265212 PMAQI
3rd Aug 2026501 PMAQI
3rd Aug 2026362 PMAQI
3rd Aug 2026383 PMAQI
3rd Aug 2026504 PMAQI
3rd Aug 2026525 PMAQI
3rd Aug 2026516 PMAQI
3rd Aug 2026277 PMAQI
3rd Aug 2026318 PMAQI
3rd Aug 2026319 PMAQI
3rd Aug 20262710 PMAQI
3rd Aug 20263111 PMAQI
4th Aug 20262912 AMAQI
4th Aug 2026581 AMAQI
4th Aug 2026232 AMAQI
4th Aug 2026463 AMAQI
4th Aug 2026424 AMAQI
4th Aug 2026365 AMAQI

19°C14/25°C

4th Aug 2026366 AMAQI
4th Aug 2026387 AMAQI
4th Aug 2026448 AMAQI
4th Aug 2026369 AMAQI
4th Aug 20264610 AMAQI
4th Aug 20262911 AMAQI
4th Aug 20265612 PMAQI
4th Aug 2026361 PMAQI
4th Aug 2026382 PMAQI
4th Aug 2026403 PMAQI
4th Aug 2026254 PMAQI
4th Aug 2026315 PMAQI
4th Aug 2026296 PMAQI
4th Aug 2026347 PMAQI
4th Aug 2026278 PMAQI
4th Aug 2026389 PMAQI
4th Aug 20263110 PMAQI
4th Aug 20263211 PMAQI
5th Aug 20264412 AMAQI
5th Aug 2026421 AMAQI
5th Aug 2026402 AMAQI
5th Aug 2026463 AMAQI
5th Aug 2026324 AMAQI
5th Aug 2026495 AMAQI

20°C15/25°C

5th Aug 2026386 AMAQI
5th Aug 2026257 AMAQI
5th Aug 2026258 AMAQI
5th Aug 2026429 AMAQI
5th Aug 20264410 AMAQI
5th Aug 20265811 AMAQI
5th Aug 20266712 PMAQI
5th Aug 2026631 PMAQI
5th Aug 2026232 PMAQI
5th Aug 2026273 PMAQI
5th Aug 2026364 PMAQI
5th Aug 2026295 PMAQI
5th Aug 2026516 PMAQI
5th Aug 2026237 PMAQI
5th Aug 2026368 PMAQI
5th Aug 2026319 PMAQI
5th Aug 20262510 PMAQI
5th Aug 20263411 PMAQI
6th Aug 20264212 AMAQI
6th Aug 2026471 AMAQI
6th Aug 2026362 AMAQI
6th Aug 2026253 AMAQI
6th Aug 2026264 AMAQI
6th Aug 2026495 AMAQI

20°C15/25°C

6th Aug 2026316 AMAQI
6th Aug 2026207 AMAQI
6th Aug 2026188 AMAQI
6th Aug 2026369 AMAQI
6th Aug 20265810 AMAQI
6th Aug 20262211 AMAQI
6th Aug 20262112 PMAQI
6th Aug 2026341 PMAQI
6th Aug 2026362 PMAQI
6th Aug 2026383 PMAQI
6th Aug 2026184 PMAQI
6th Aug 2026405 PMAQI
6th Aug 2026276 PMAQI
6th Aug 2026427 PMAQI
6th Aug 2026408 PMAQI
6th Aug 2026409 PMAQI
6th Aug 20262310 PMAQI
6th Aug 20262911 PMAQI
7th Aug 20262212 AMAQI
7th Aug 2026271 AMAQI
7th Aug 2026382 AMAQI
7th Aug 2026233 AMAQI
7th Aug 2026384 AMAQI
7th Aug 2026305 AMAQI

20°C16/25°C

7th Aug 2026226 AMAQI
7th Aug 2026197 AMAQI
7th Aug 2026388 AMAQI
7th Aug 2026239 AMAQI
7th Aug 20263410 AMAQI
7th Aug 20263811 AMAQI
7th Aug 20264012 PMAQI
7th Aug 2026581 PMAQI
7th Aug 2026582 PMAQI
7th Aug 2026563 PMAQI
7th Aug 2026254 PMAQI
7th Aug 2026235 PMAQI
7th Aug 2026386 PMAQI
7th Aug 2026367 PMAQI
7th Aug 2026468 PMAQI
7th Aug 2026469 PMAQI
7th Aug 20265010 PMAQI
7th Aug 20264011 PMAQI
8th Aug 20263412 AMAQI
8th Aug 2026381 AMAQI
8th Aug 2026302 AMAQI
8th Aug 2026363 AMAQI
8th Aug 2026344 AMAQI
8th Aug 2026325 AMAQI

19°C15/24°C

8th Aug 2026586 AMAQI
8th Aug 2026237 AMAQI
8th Aug 2026408 AMAQI
8th Aug 2026449 AMAQI
8th Aug 20266310 AMAQI
8th Aug 20264011 AMAQI
8th Aug 20264412 PMAQI
8th Aug 2026271 PMAQI
8th Aug 2026602 PMAQI
8th Aug 2026603 PMAQI
8th Aug 2026604 PMAQI
8th Aug 2026425 PMAQI
8th Aug 2026406 PMAQI
8th Aug 2026367 PMAQI
8th Aug 2026528 PMAQI
8th Aug 2026279 PMAQI
8th Aug 20265410 PMAQI
8th Aug 20262111 PMAQI
9th Aug 20263812 AMAQI
9th Aug 2026261 AMAQI
9th Aug 2026422 AMAQI
9th Aug 2026263 AMAQI
9th Aug 2026404 AMAQI
9th Aug 2026245 AMAQI

20°C16/25°C

9th Aug 2026216 AMAQI
9th Aug 2026297 AMAQI
9th Aug 2026258 AMAQI
9th Aug 2026469 AMAQI
9th Aug 20266510 AMAQI
9th Aug 20266011 AMAQI
9th Aug 20264412 PMAQI
9th Aug 2026441 PMAQI
9th Aug 2026382 PMAQI
9th Aug 2026253 PMAQI
9th Aug 2026344 PMAQI
9th Aug 2026235 PMAQI
9th Aug 2026366 PMAQI
9th Aug 2026407 PMAQI
9th Aug 2026368 PMAQI
9th Aug 2026369 PMAQI
9th Aug 20263110 PMAQI
9th Aug 20263411 PMAQI
10th Aug 20263612 AMAQI
10th Aug 2026301 AMAQI
10th Aug 2026272 AMAQI
10th Aug 2026333 AMAQI
10th Aug 2026464 AMAQI
10th Aug 2026235 AMAQI

19°C16/24°C

10th Aug 2026546 AMAQI
10th Aug 2026237 AMAQI
10th Aug 2026318 AMAQI
10th Aug 2026549 AMAQI
10th Aug 20265410 AMAQI
10th Aug 20265811 AMAQI
10th Aug 20264412 PMAQI
10th Aug 2026541 PMAQI
10th Aug 2026382 PMAQI
10th Aug 2026213 PMAQI
10th Aug 2026234 PMAQI
10th Aug 2026185 PMAQI
10th Aug 2026536 PMAQI
10th Aug 2026507 PMAQI
10th Aug 2026368 PMAQI
10th Aug 2026389 PMAQI
10th Aug 20262110 PMAQI
10th Aug 20263611 PMAQI
11th Aug 20263612 AMAQI
11th Aug 2026501 AMAQI
11th Aug 2026212 AMAQI
11th Aug 2026363 AMAQI
11th Aug 2026424 AMAQI
11th Aug 2026295 AMAQI

19°C15/25°C

11th Aug 2026366 AMAQI
11th Aug 2026387 AMAQI
11th Aug 2026318 AMAQI
11th Aug 2026509 AMAQI
11th Aug 20263610 AMAQI
11th Aug 20265411 AMAQI
11th Aug 20265412 PMAQI
11th Aug 2026501 PMAQI
11th Aug 2026502 PMAQI
11th Aug 2026423 PMAQI
11th Aug 2026424 PMAQI
11th Aug 2026495 PMAQI
11th Aug 2026426 PMAQI
11th Aug 2026497 PMAQI
11th Aug 2026428 PMAQI
11th Aug 2026469 PMAQI
11th Aug 20262310 PMAQI
11th Aug 20265211 PMAQI
12th Aug 20264012 AMAQI
12th Aug 2026541 AMAQI
12th Aug 2026382 AMAQI
12th Aug 2026323 AMAQI
12th Aug 2026504 AMAQI
12th Aug 2026345 AMAQI

20°C15/26°C

12th Aug 2026276 AMAQI
12th Aug 2026387 AMAQI
12th Aug 2026278 AMAQI
12th Aug 2026299 AMAQI
12th Aug 20263310 AMAQI
12th Aug 20264211 AMAQI
12th Aug 20264212 PMAQI
12th Aug 2026381 PMAQI
12th Aug 2026402 PMAQI
12th Aug 2026383 PMAQI
12th Aug 2026464 PMAQI
12th Aug 2026505 PMAQI
12th Aug 2026386 PMAQI
12th Aug 2026407 PMAQI
12th Aug 2026528 PMAQI
12th Aug 2026389 PMAQI
12th Aug 20265610 PMAQI
12th Aug 20264011 PMAQI
13th Aug 20265612 AMAQI
13th Aug 2026461 AMAQI
13th Aug 2026582 AMAQI
13th Aug 2026403 AMAQI
13th Aug 2026404 AMAQI
13th Aug 2026575 AMAQI

20°C15/26°C

13th Aug 2026506 AMAQI
13th Aug 2026367 AMAQI
13th Aug 2026408 AMAQI
13th Aug 2026589 AMAQI
13th Aug 20265810 AMAQI
13th Aug 20265811 AMAQI
13th Aug 20265812 PMAQI
13th Aug 2026421 PMAQI
13th Aug 2026272 PMAQI
13th Aug 2026603 PMAQI
13th Aug 2026624 PMAQI
13th Aug 2026655 PMAQI
13th Aug 2026476 PMAQI
13th Aug 2026697 PMAQI
13th Aug 2026678 PMAQI
13th Aug 2026659 PMAQI
13th Aug 20265110 PMAQI
13th Aug 20265111 PMAQI
14th Aug 20264612 AMAQI
14th Aug 2026561 AMAQI
14th Aug 2026382 AMAQI
14th Aug 2026553 AMAQI
14th Aug 2026524 AMAQI
14th Aug 2026365 AMAQI

18°C14/23°C

14th Aug 2026526 AMAQI
14th Aug 2026527 AMAQI
14th Aug 2026528 AMAQI
14th Aug 2026529 AMAQI
14th Aug 20265210 AMAQI
14th Aug 20265111 AMAQI
14th Aug 20263612 PMAQI
14th Aug 2026321 PMAQI
14th Aug 2026422 PMAQI
14th Aug 2026383 PMAQI
14th Aug 2026464 PMAQI
14th Aug 2026505 PMAQI
14th Aug 2026326 PMAQI
14th Aug 2026297 PMAQI
14th Aug 2026258 PMAQI
14th Aug 2026409 PMAQI
14th Aug 20262310 PMAQI
14th Aug 20263611 PMAQI
15th Aug 20263612 AMAQI
15th Aug 2026361 AMAQI
15th Aug 2026212 AMAQI
15th Aug 2026323 AMAQI
15th Aug 2026424 AMAQI
15th Aug 2026505 AMAQI

15°C11/20°C

15th Aug 2026346 AMAQI
15th Aug 2026347 AMAQI
15th Aug 2026368 AMAQI
15th Aug 2026509 AMAQI
15th Aug 20265010 AMAQI
15th Aug 20265011 AMAQI
15th Aug 20265012 PMAQI
15th Aug 2026501 PMAQI
15th Aug 2026512 PMAQI
15th Aug 2026213 PMAQI
15th Aug 2026504 PMAQI
15th Aug 2026345 PMAQI
15th Aug 2026406 PMAQI
15th Aug 2026467 PMAQI
15th Aug 2026238 PMAQI
15th Aug 2026369 PMAQI
15th Aug 20262510 PMAQI
15th Aug 20265011 PMAQI
16th Aug 20263612 AMAQI
16th Aug 2026511 AMAQI
16th Aug 2026312 AMAQI
16th Aug 2026443 AMAQI
16th Aug 2026424 AMAQI
16th Aug 2026385 AMAQI

14°C9/19°C

16th Aug 2026546 AMAQI
16th Aug 2026237 AMAQI
16th Aug 2026238 AMAQI
16th Aug 2026339 AMAQI
16th Aug 20263210 AMAQI
16th Aug 20262711 AMAQI
16th Aug 20263412 PMAQI
16th Aug 2026291 PMAQI
16th Aug 2026342 PMAQI
16th Aug 2026363 PMAQI
16th Aug 2026544 PMAQI
16th Aug 2026535 PMAQI
16th Aug 2026556 PMAQI
16th Aug 2026367 PMAQI
16th Aug 2026278 PMAQI
16th Aug 2026239 PMAQI
16th Aug 20263310 PMAQI
16th Aug 20263811 PMAQI
17th Aug 20263412 AMAQI
17th Aug 2026421 AMAQI
17th Aug 2026322 AMAQI
17th Aug 2026233 AMAQI
17th Aug 2026444 AMAQI
17th Aug 2026425 AMAQI

16°C10/23°C

17th Aug 2026426 AMAQI
17th Aug 2026427 AMAQI
17th Aug 2026278 AMAQI
17th Aug 2026349 AMAQI
17th Aug 20262310 AMAQI
17th Aug 20265111 AMAQI
17th Aug 20265212 PMAQI
17th Aug 2026541 PMAQI
17th Aug 2026462 PMAQI
17th Aug 2026463 PMAQI
17th Aug 2026484 PMAQI
17th Aug 2026525 PMAQI
17th Aug 2026526 PMAQI
17th Aug 2026407 PMAQI
17th Aug 2026278 PMAQI
17th Aug 2026389 PMAQI
17th Aug 20265810 PMAQI
17th Aug 20266511 PMAQI
18th Aug 20266312 AMAQI
18th Aug 2026651 AMAQI
18th Aug 2026272 AMAQI
18th Aug 2026273 AMAQI
18th Aug 2026444 AMAQI
18th Aug 2026625 AMAQI

17°C13/25°C

18th Aug 2026586 AMAQI
6 AM
18th Aug 2026607 AMAQI
18th Aug 2026428 AMAQI
18th Aug 2026449 AMAQI
18th Aug 20266010 AMAQI
18th Aug 20264611 AMAQI
18th Aug 20263312 PMAQI
18th Aug 2026421 PMAQI
1 PM
18th Aug 2026502 PMAQI
18th Aug 2026513 PMAQI
18th Aug 2026254 PMAQI
18th Aug 2026635 PMAQI
18th Aug 2026236 PMAQI
18th Aug 2026927 PMAQI
18th Aug 2026808 PMAQI
8 PM
18th Aug 2026619 PMAQI
18th Aug 20269510 PMAQI
18th Aug 20267611 PMAQI
1 AM
5 AM

19°C13/27°C

Day time
Avg. Highest Time
9 AM - 10 AM

44AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
7 AM - 8 AM

39AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 AM to 10 AM (Avg. 44), while the lowest AQI was between 7 AM to 8 AM (Avg. 39).
Night time
Avg. Highest Time
1 AM

45AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
3 AM

34AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 1 AM (Avg. 45), while the lowest AQI was between 3 AM to 3 AM (Avg. 34).

2026 Days Vs Air Quality

Rozhen Kfs, Chepelare, Smolyan, Bulgaria

2026

96%

218

4%

8

Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)

Good
218 Days
Moderate
8 Days
Poor
0 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 96%

Health Risk Level:

Very Low

In 2026, 96% of 230 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

Rozhen Kfs, Chepelare, Smolyan, Bulgaria

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
19AQI (US)
2nd January 2026
35AQI (US)
3rd January 2026
13AQI (US)
4th January 2026
21AQI (US)
5th January 2026
18AQI (US)
6th January 2026
29AQI (US)
7th January 2026
28AQI (US)
8th January 2026
24AQI (US)
9th January 2026
24AQI (US)
10th January 2026
32AQI (US)
11th January 2026
27AQI (US)
12th January 2026
16AQI (US)
13th January 2026
24AQI (US)
14th January 2026
30AQI (US)
15th January 2026
35AQI (US)
16th January 2026
25AQI (US)
17th January 2026
21AQI (US)
18th January 2026
18AQI (US)
19th January 2026
19AQI (US)
20th January 2026
30AQI (US)
21st January 2026
64AQI (US)
22nd January 2026
77AQI (US)
23rd January 2026
82AQI (US)
24th January 2026
55AQI (US)
25th January 2026
60AQI (US)
26th January 2026
65AQI (US)
27th January 2026
36AQI (US)
28th January 2026
26AQI (US)
29th January 2026
30AQI (US)
30th January 2026
32AQI (US)
31st January 2026
29AQI (US)
1st February 2026
29AQI (US)
2nd February 2026
30AQI (US)
3rd February 2026
35AQI (US)
4th February 2026
40AQI (US)
5th February 2026
40AQI (US)
6th February 2026
40AQI (US)
7th February 2026
43AQI (US)
8th February 2026
38AQI (US)
9th February 2026
44AQI (US)
10th February 2026
34AQI (US)
11th February 2026
32AQI (US)
12th February 2026
33AQI (US)
13th February 2026
32AQI (US)
14th February 2026
28AQI (US)
15th February 2026
28AQI (US)
16th February 2026
21AQI (US)
17th February 2026
23AQI (US)
18th February 2026
19AQI (US)
19th February 2026
24AQI (US)
20th February 2026
24AQI (US)
21st February 2026
21AQI (US)
22nd February 2026
27AQI (US)
23rd February 2026
25AQI (US)
24th February 2026
24AQI (US)
25th February 2026
21AQI (US)
26th February 2026
24AQI (US)
27th February 2026
28AQI (US)
28th February 2026
32AQI (US)
1st March 2026
36AQI (US)
2nd March 2026
45AQI (US)
3rd March 2026
35AQI (US)
4th March 2026
30AQI (US)
5th March 2026
34AQI (US)
6th March 2026
34AQI (US)
7th March 2026
32AQI (US)
8th March 2026
22AQI (US)
9th March 2026
21AQI (US)
10th March 2026
19AQI (US)
11th March 2026
23AQI (US)
12th March 2026
26AQI (US)
13th March 2026
26AQI (US)
14th March 2026
22AQI (US)
15th March 2026
24AQI (US)
16th March 2026
25AQI (US)
17th March 2026
28AQI (US)
18th March 2026
34AQI (US)
19th March 2026
29AQI (US)
20th March 2026
22AQI (US)
21st March 2026
30AQI (US)
22nd March 2026
31AQI (US)
23rd March 2026
33AQI (US)
24th March 2026
21AQI (US)
25th March 2026
30AQI (US)
26th March 2026
20AQI (US)
27th March 2026
20AQI (US)
28th March 2026
15AQI (US)
29th March 2026
19AQI (US)
30th March 2026
19AQI (US)
31st March 2026
22AQI (US)
1st April 2026
21AQI (US)
2nd April 2026
21AQI (US)
3rd April 2026
18AQI (US)
4th April 2026
22AQI (US)
5th April 2026
24AQI (US)
6th April 2026
21AQI (US)
7th April 2026
21AQI (US)
8th April 2026
21AQI (US)
9th April 2026
19AQI (US)
10th April 2026
20AQI (US)
11th April 2026
19AQI (US)
12th April 2026
22AQI (US)
13th April 2026
23AQI (US)
14th April 2026
24AQI (US)
15th April 2026
28AQI (US)
16th April 2026
26AQI (US)
17th April 2026
18th April 2026
18AQI (US)
19th April 2026
23AQI (US)
20th April 2026
24AQI (US)
21st April 2026
23AQI (US)
22nd April 2026
23rd April 2026
20AQI (US)
24th April 2026
20AQI (US)
25th April 2026
24AQI (US)
26th April 2026
21AQI (US)
27th April 2026
19AQI (US)
28th April 2026
23AQI (US)
29th April 2026
23AQI (US)
30th April 2026
18AQI (US)
1st May 2026
18AQI (US)
2nd May 2026
20AQI (US)
3rd May 2026
21AQI (US)
4th May 2026
18AQI (US)
5th May 2026
25AQI (US)
6th May 2026
22AQI (US)
7th May 2026
25AQI (US)
8th May 2026
30AQI (US)
9th May 2026
10th May 2026
22AQI (US)
11th May 2026
22AQI (US)
12th May 2026
24AQI (US)
13th May 2026
23AQI (US)
14th May 2026
22AQI (US)
15th May 2026
22AQI (US)
16th May 2026
23AQI (US)
17th May 2026
28AQI (US)
18th May 2026
20AQI (US)
19th May 2026
20AQI (US)
20th May 2026
22AQI (US)
21st May 2026
29AQI (US)
22nd May 2026
31AQI (US)
23rd May 2026
22AQI (US)
24th May 2026
21AQI (US)
25th May 2026
24AQI (US)
26th May 2026
23AQI (US)
27th May 2026
21AQI (US)
28th May 2026
22AQI (US)
29th May 2026
14AQI (US)
30th May 2026
20AQI (US)
31st May 2026
22AQI (US)
1st June 2026
20AQI (US)
2nd June 2026
21AQI (US)
3rd June 2026
24AQI (US)
4th June 2026
26AQI (US)
5th June 2026
26AQI (US)
6th June 2026
27AQI (US)
7th June 2026
30AQI (US)
8th June 2026
27AQI (US)
9th June 2026
19AQI (US)
10th June 2026
22AQI (US)
11th June 2026
24AQI (US)
12th June 2026
18AQI (US)
13th June 2026
15AQI (US)
14th June 2026
16AQI (US)
15th June 2026
17AQI (US)
16th June 2026
19AQI (US)
17th June 2026
19AQI (US)
18th June 2026
20AQI (US)
19th June 2026
20AQI (US)
20th June 2026
18AQI (US)
21st June 2026
21AQI (US)
22nd June 2026
24AQI (US)
23rd June 2026
22AQI (US)
24th June 2026
23AQI (US)
25th June 2026
20AQI (US)
26th June 2026
22AQI (US)
27th June 2026
26AQI (US)
28th June 2026
23AQI (US)
29th June 2026
19AQI (US)
30th June 2026
26AQI (US)
1st July 2026
27AQI (US)
2nd July 2026
24AQI (US)
3rd July 2026
25AQI (US)
4th July 2026
27AQI (US)
5th July 2026
20AQI (US)
6th July 2026
21AQI (US)
7th July 2026
26AQI (US)
8th July 2026
28AQI (US)
9th July 2026
23AQI (US)
10th July 2026
24AQI (US)
11th July 2026
25AQI (US)
12th July 2026
24AQI (US)
13th July 2026
26AQI (US)
14th July 2026
23AQI (US)
15th July 2026
25AQI (US)
16th July 2026
26AQI (US)
17th July 2026
39AQI (US)
18th July 2026
51AQI (US)
19th July 2026
42AQI (US)
20th July 2026
41AQI (US)
21st July 2026
40AQI (US)
22nd July 2026
46AQI (US)
23rd July 2026
44AQI (US)
24th July 2026
47AQI (US)
25th July 2026
46AQI (US)
26th July 2026
47AQI (US)
27th July 2026
48AQI (US)
28th July 2026
45AQI (US)
29th July 2026
41AQI (US)
30th July 2026
21AQI (US)
31st July 2026
30AQI (US)
1st August 2026
36AQI (US)
2nd August 2026
41AQI (US)
3rd August 2026
39AQI (US)
4th August 2026
37AQI (US)
5th August 2026
39AQI (US)
6th August 2026
33AQI (US)
7th August 2026
36AQI (US)
8th August 2026
41AQI (US)
9th August 2026
36AQI (US)
10th August 2026
38AQI (US)
11th August 2026
42AQI (US)
12th August 2026
40AQI (US)
13th August 2026
53AQI (US)
14th August 2026
43AQI (US)
15th August 2026
39AQI (US)
16th August 2026
37AQI (US)
17th August 2026
42AQI (US)
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

34AQI (US)

30AQI (US)

27AQI (US)

22AQI (US)

23AQI (US)

22AQI (US)

33AQI (US)

40AQI (US)

No. of days

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

202628AQI (US)

25
6
28
31
28
30
30
30
1
16
1
218
8

Highest AQI (US) recorded in

August

40AQI (US)

Lowest AQI (US) recorded in

June

22AQI (US)

202546AQI (US)

31
13
15
13
18
27
3
21
10
14
16
24
7
31
29
1
23
8
29
1
27
4
251
114

Highest AQI (US) recorded in

January

69AQI (US)

Lowest AQI (US) recorded in

November

33AQI (US)

202440AQI (US)

27
29
22
30
31
27
3
16
15
30
26
27
4
11
19
31
276
72

Highest AQI (US) recorded in

December

59AQI (US)

Lowest AQI (US) recorded in

March

29AQI (US)

202332AQI (US)

24
11
15
23
31
24
25
31
30
31
29
31
305

Highest AQI (US) recorded in

August

41AQI (US)

Lowest AQI (US) recorded in

November

26AQI (US)

202234AQI (US)

28
22
28
1
27
3
28
27
24
1
25
22
30
31
293
4

Highest AQI (US) recorded in

August

44AQI (US)

Lowest AQI (US) recorded in

December

26AQI (US)

202136AQI (US)

24
27
29
27
22
26
30
1
28
1
27
3
31
30
31
332
5

Highest AQI (US) recorded in

August

44AQI (US)

Lowest AQI (US) recorded in

December

30AQI (US)

202035AQI (US)

13
9
15
30
30
1
29
2
27
2
28
30
28
239
5

Highest AQI (US) recorded in

August

42AQI (US)

Lowest AQI (US) recorded in

December

28AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
46AQI (US)
Least Polluted Year Recorded
2026(Avg.)
28AQI (US)

Rozhen Kfs's annual 2026 AQI (US) (28) shows an average percentage change of -23.5% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (36), 2022 (34), 2023 (32), 2024 (40), 2025 (46).