Sliven, Sliven Province, 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
Sliven, Sliven Province, Bulgaria
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
43AQILowest AQI recorded on
1st Aug 2022
3AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 37 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Sliven, Sliven Province, Bulgaria
AQI
Day
Night
.
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
12PM4th Aug
42AQI
Avg. Lowest Time
6AM4th Aug
33AQI
Night time
Avg. Highest Time
10PM4th Aug
38AQI
Avg. Lowest Time
2AM5th Aug
36AQI
In the last 24 hours,
Sliven's AQI reached its highest point of 42 at 12 PM during the Day, while the lowest point, 33, was recorded at 6 AM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Sliven, Sliven Province, Bulgaria
JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025495 AMAQI
6th Jul 2025446 AMAQI
6th Jul 2025477 AMAQI
6th Jul 2025488 AMAQI
6th Jul 2025489 AMAQI
6th Jul 20254710 AMAQI
6th Jul 20254611 AMAQI
6th Jul 20254712 PMAQI
6th Jul 2025481 PMAQI
6th Jul 2025462 PMAQI
6th Jul 2025483 PMAQI
6th Jul 2025484 PMAQI
6th Jul 2025475 PMAQI
6th Jul 2025476 PMAQI
6th Jul 2025467 PMAQI
6th Jul 2025488 PMAQI
6th Jul 2025469 PMAQI
6th Jul 20255110 PMAQI
6th Jul 20255011 PMAQI
7th Jul 20254912 AMAQI
7th Jul 2025491 AMAQI
7th Jul 2025492 AMAQI
7th Jul 2025503 AMAQI
7th Jul 2025524 AMAQI
26°C18/35°C
7th Jul 2025525 AMAQI
7th Jul 2025486 AMAQI
7th Jul 2025447 AMAQI
7th Jul 2025468 AMAQI
7th Jul 2025459 AMAQI
7th Jul 20254810 AMAQI
7th Jul 20254511 AMAQI
7th Jul 20254812 PMAQI
7th Jul 2025481 PMAQI
7th Jul 2025522 PMAQI
7th Jul 2025513 PMAQI
7th Jul 2025504 PMAQI
7th Jul 2025505 PMAQI
7th Jul 2025506 PMAQI
7th Jul 2025507 PMAQI
7th Jul 2025508 PMAQI
7th Jul 2025519 PMAQI
7th Jul 20255210 PMAQI
7th Jul 20255211 PMAQI
8th Jul 20255212 AMAQI
8th Jul 2025511 AMAQI
8th Jul 2025522 AMAQI
8th Jul 2025513 AMAQI
8th Jul 2025504 AMAQI
26°C18/36°C
8th Jul 2025505 AMAQI
8th Jul 2025476 AMAQI
8th Jul 2025497 AMAQI
8th Jul 2025518 AMAQI
8th Jul 2025529 AMAQI
8th Jul 20255210 AMAQI
8th Jul 20255111 AMAQI
8th Jul 20255112 PMAQI
8th Jul 2025521 PMAQI
8th Jul 2025512 PMAQI
8th Jul 2025513 PMAQI
8th Jul 2025504 PMAQI
8th Jul 2025485 PMAQI
8th Jul 2025496 PMAQI
8th Jul 2025477 PMAQI
8th Jul 2025488 PMAQI
8th Jul 2025509 PMAQI
8th Jul 20255010 PMAQI
8th Jul 20255211 PMAQI
9th Jul 20255212 AMAQI
9th Jul 2025521 AMAQI
9th Jul 2025522 AMAQI
9th Jul 2025503 AMAQI
9th Jul 2025504 AMAQI
27°C18/37°C
9th Jul 2025475 AMAQI
9th Jul 2025516 AMAQI
9th Jul 2025497 AMAQI
9th Jul 2025508 AMAQI
9th Jul 2025529 AMAQI
9th Jul 20255010 AMAQI
9th Jul 20255111 AMAQI
9th Jul 20255012 PMAQI
9th Jul 2025521 PMAQI
9th Jul 2025522 PMAQI
9th Jul 2025513 PMAQI
9th Jul 2025504 PMAQI
9th Jul 2025505 PMAQI
9th Jul 2025496 PMAQI
9th Jul 2025477 PMAQI
9th Jul 2025498 PMAQI
9th Jul 2025529 PMAQI
9th Jul 20255310 PMAQI
9th Jul 20255311 PMAQI
10th Jul 20255212 AMAQI
10th Jul 2025521 AMAQI
10th Jul 2025532 AMAQI
10th Jul 2025523 AMAQI
10th Jul 2025514 AMAQI
26°C16/37°C
10th Jul 2025525 AMAQI
10th Jul 2025526 AMAQI
10th Jul 2025517 AMAQI
10th Jul 2025518 AMAQI
10th Jul 2025509 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20254711 AMAQI
10th Jul 20254612 PMAQI
10th Jul 2025471 PMAQI
10th Jul 2025462 PMAQI
10th Jul 2025483 PMAQI
10th Jul 2025484 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025486 PMAQI
10th Jul 2025487 PMAQI
10th Jul 2025478 PMAQI
10th Jul 2025469 PMAQI
10th Jul 20254910 PMAQI
10th Jul 20255211 PMAQI
11th Jul 20255412 AMAQI
11th Jul 2025501 AMAQI
11th Jul 2025512 AMAQI
11th Jul 2025503 AMAQI
11th Jul 2025514 AMAQI
20°C12/28°C
11th Jul 2025505 AMAQI
11th Jul 2025506 AMAQI
11th Jul 2025487 AMAQI
11th Jul 2025508 AMAQI
11th Jul 2025509 AMAQI
11th Jul 20254810 AMAQI
11th Jul 20254811 AMAQI
11th Jul 20254712 PMAQI
11th Jul 2025481 PMAQI
11th Jul 2025482 PMAQI
11th Jul 2025483 PMAQI
11th Jul 2025494 PMAQI
11th Jul 2025505 PMAQI
11th Jul 2025486 PMAQI
11th Jul 2025487 PMAQI
11th Jul 2025478 PMAQI
11th Jul 2025469 PMAQI
11th Jul 20254910 PMAQI
11th Jul 20255011 PMAQI
12th Jul 20255112 AMAQI
12th Jul 2025481 AMAQI
12th Jul 2025492 AMAQI
12th Jul 2025493 AMAQI
12th Jul 2025484 AMAQI
21°C13/28°C
12th Jul 2025515 AMAQI
12th Jul 2025476 AMAQI
12th Jul 2025477 AMAQI
12th Jul 2025498 AMAQI
12th Jul 2025449 AMAQI
12th Jul 20254910 AMAQI
12th Jul 20254711 AMAQI
12th Jul 20254612 PMAQI
12th Jul 2025451 PMAQI
12th Jul 2025462 PMAQI
12th Jul 2025483 PMAQI
12th Jul 2025484 PMAQI
12th Jul 2025465 PMAQI
12th Jul 2025476 PMAQI
12th Jul 2025497 PMAQI
12th Jul 2025488 PMAQI
12th Jul 2025509 PMAQI
12th Jul 20255110 PMAQI
12th Jul 20255511 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025501 AMAQI
13th Jul 2025532 AMAQI
13th Jul 2025503 AMAQI
13th Jul 2025484 AMAQI
23°C16/31°C
13th Jul 2025485 AMAQI
13th Jul 2025506 AMAQI
13th Jul 2025467 AMAQI
13th Jul 2025508 AMAQI
13th Jul 2025439 AMAQI
13th Jul 20254210 AMAQI
13th Jul 20254411 AMAQI
13th Jul 20254412 PMAQI
13th Jul 2025431 PMAQI
13th Jul 2025472 PMAQI
13th Jul 2025483 PMAQI
13th Jul 2025494 PMAQI
13th Jul 2025495 PMAQI
13th Jul 2025516 PMAQI
13th Jul 2025507 PMAQI
13th Jul 2025498 PMAQI
13th Jul 2025499 PMAQI
13th Jul 20254910 PMAQI
13th Jul 20255111 PMAQI
14th Jul 20255212 AMAQI
14th Jul 2025521 AMAQI
14th Jul 2025522 AMAQI
14th Jul 2025503 AMAQI
14th Jul 2025474 AMAQI
25°C16/34°C
14th Jul 2025495 AMAQI
14th Jul 2025476 AMAQI
14th Jul 2025467 AMAQI
14th Jul 2025538 AMAQI
14th Jul 2025519 AMAQI
14th Jul 20254610 AMAQI
14th Jul 20254711 AMAQI
14th Jul 20254712 PMAQI
14th Jul 2025461 PMAQI
14th Jul 2025462 PMAQI
14th Jul 2025473 PMAQI
14th Jul 2025484 PMAQI
14th Jul 2025485 PMAQI
14th Jul 2025486 PMAQI
14th Jul 2025497 PMAQI
14th Jul 2025468 PMAQI
14th Jul 2025459 PMAQI
14th Jul 20254810 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20254812 AMAQI
15th Jul 2025491 AMAQI
15th Jul 2025492 AMAQI
15th Jul 2025473 AMAQI
15th Jul 2025464 AMAQI
26°C18/35°C
15th Jul 2025425 AMAQI
15th Jul 2025436 AMAQI
15th Jul 2025447 AMAQI
15th Jul 2025448 AMAQI
15th Jul 2025459 AMAQI
15th Jul 20254210 AMAQI
15th Jul 20254111 AMAQI
15th Jul 20254012 PMAQI
15th Jul 2025401 PMAQI
15th Jul 2025412 PMAQI
15th Jul 2025423 PMAQI
15th Jul 2025434 PMAQI
15th Jul 2025465 PMAQI
15th Jul 2025446 PMAQI
15th Jul 2025447 PMAQI
15th Jul 2025448 PMAQI
15th Jul 2025459 PMAQI
15th Jul 20254610 PMAQI
15th Jul 20254611 PMAQI
16th Jul 20254412 AMAQI
16th Jul 2025441 AMAQI
16th Jul 2025442 AMAQI
16th Jul 2025463 AMAQI
16th Jul 2025464 AMAQI
26°C19/34°C
16th Jul 2025445 AMAQI
16th Jul 2025426 AMAQI
16th Jul 2025457 AMAQI
16th Jul 2025428 AMAQI
16th Jul 2025429 AMAQI
16th Jul 20254310 AMAQI
16th Jul 20254211 AMAQI
16th Jul 20254312 PMAQI
16th Jul 2025451 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025424 PMAQI
16th Jul 2025445 PMAQI
16th Jul 2025436 PMAQI
16th Jul 2025467 PMAQI
16th Jul 2025458 PMAQI
16th Jul 2025469 PMAQI
16th Jul 20254610 PMAQI
16th Jul 20254811 PMAQI
17th Jul 20254712 AMAQI
17th Jul 2025451 AMAQI
17th Jul 2025432 AMAQI
17th Jul 2025443 AMAQI
17th Jul 2025454 AMAQI
26°C20/32°C
17th Jul 2025465 AMAQI
17th Jul 2025466 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025459 AMAQI
17th Jul 20254410 AMAQI
17th Jul 20254611 AMAQI
17th Jul 20254312 PMAQI
17th Jul 2025431 PMAQI
17th Jul 2025422 PMAQI
17th Jul 2025433 PMAQI
17th Jul 2025434 PMAQI
17th Jul 2025445 PMAQI
17th Jul 2025436 PMAQI
17th Jul 2025457 PMAQI
17th Jul 2025468 PMAQI
17th Jul 2025479 PMAQI
17th Jul 20254510 PMAQI
17th Jul 20254411 PMAQI
18th Jul 20254412 AMAQI
18th Jul 2025451 AMAQI
18th Jul 2025442 AMAQI
18th Jul 2025433 AMAQI
18th Jul 2025384 AMAQI
25°C16/34°C
18th Jul 2025365 AMAQI
18th Jul 2025366 AMAQI
18th Jul 2025407 AMAQI
18th Jul 2025388 AMAQI
18th Jul 2025389 AMAQI
18th Jul 20254010 AMAQI
18th Jul 20254111 AMAQI
18th Jul 20254112 PMAQI
18th Jul 2025391 PMAQI
18th Jul 2025362 PMAQI
18th Jul 2025363 PMAQI
18th Jul 2025354 PMAQI
18th Jul 2025365 PMAQI
18th Jul 2025356 PMAQI
18th Jul 2025367 PMAQI
18th Jul 2025358 PMAQI
18th Jul 2025379 PMAQI
18th Jul 20253810 PMAQI
18th Jul 20253811 PMAQI
19th Jul 20254012 AMAQI
19th Jul 2025391 AMAQI
19th Jul 2025402 AMAQI
19th Jul 2025373 AMAQI
19th Jul 2025384 AMAQI
21°C14/29°C
19th Jul 2025365 AMAQI
19th Jul 2025356 AMAQI
19th Jul 2025367 AMAQI
19th Jul 2025368 AMAQI
19th Jul 2025369 AMAQI
19th Jul 20253710 AMAQI
19th Jul 20253611 AMAQI
19th Jul 20253612 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025342 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025344 PMAQI
19th Jul 2025335 PMAQI
19th Jul 2025346 PMAQI
19th Jul 2025357 PMAQI
19th Jul 2025358 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253410 PMAQI
19th Jul 20253711 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025371 AMAQI
20th Jul 2025362 AMAQI
20th Jul 2025363 AMAQI
20th Jul 2025354 AMAQI
23°C15/31°C
20th Jul 2025365 AMAQI
20th Jul 2025446 AMAQI
20th Jul 2025337 AMAQI
20th Jul 2025348 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253510 AMAQI
20th Jul 20253511 AMAQI
20th Jul 20253612 PMAQI
20th Jul 2025351 PMAQI
20th Jul 2025362 PMAQI
20th Jul 2025343 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025335 PMAQI
20th Jul 2025346 PMAQI
20th Jul 2025337 PMAQI
20th Jul 2025348 PMAQI
20th Jul 2025339 PMAQI
20th Jul 20253410 PMAQI
20th Jul 20253411 PMAQI
21st Jul 20253412 AMAQI
21st Jul 2025361 AMAQI
21st Jul 2025362 AMAQI
21st Jul 2025383 AMAQI
21st Jul 2025364 AMAQI
25°C17/33°C
21st Jul 2025375 AMAQI
21st Jul 2025366 AMAQI
21st Jul 2025377 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025389 AMAQI
21st Jul 20254110 AMAQI
21st Jul 20253811 AMAQI
21st Jul 20253712 PMAQI
21st Jul 2025391 PMAQI
21st Jul 2025402 PMAQI
21st Jul 2025423 PMAQI
21st Jul 2025464 PMAQI
21st Jul 2025495 PMAQI
21st Jul 2025476 PMAQI
21st Jul 2025487 PMAQI
21st Jul 2025468 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20253911 PMAQI
22nd Jul 20254012 AMAQI
22nd Jul 2025371 AMAQI
22nd Jul 2025362 AMAQI
22nd Jul 2025443 AMAQI
22nd Jul 2025474 AMAQI
28°C20/37°C
22nd Jul 2025585 AMAQI
22nd Jul 2025566 AMAQI
22nd Jul 2025557 AMAQI
22nd Jul 2025468 AMAQI
22nd Jul 2025389 AMAQI
22nd Jul 20253610 AMAQI
22nd Jul 20253611 AMAQI
22nd Jul 20253312 PMAQI
22nd Jul 2025341 PMAQI
22nd Jul 2025402 PMAQI
22nd Jul 2025423 PMAQI
22nd Jul 2025424 PMAQI
22nd Jul 2025435 PMAQI
22nd Jul 2025426 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025428 PMAQI
22nd Jul 2025409 PMAQI
22nd Jul 20253910 PMAQI
22nd Jul 20254211 PMAQI
23rd Jul 20254312 AMAQI
23rd Jul 2025421 AMAQI
23rd Jul 2025432 AMAQI
23rd Jul 2025433 AMAQI
23rd Jul 2025464 AMAQI
30°C21/39°C
23rd Jul 2025425 AMAQI
23rd Jul 2025416 AMAQI
23rd Jul 2025417 AMAQI
23rd Jul 2025408 AMAQI
23rd Jul 2025419 AMAQI
23rd Jul 20254110 AMAQI
23rd Jul 20254211 AMAQI
23rd Jul 20254012 PMAQI
23rd Jul 2025431 PMAQI
23rd Jul 2025402 PMAQI
23rd Jul 2025383 PMAQI
23rd Jul 2025384 PMAQI
23rd Jul 2025395 PMAQI
23rd Jul 2025396 PMAQI
23rd Jul 2025407 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025399 PMAQI
23rd Jul 20254010 PMAQI
23rd Jul 20254211 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025411 AMAQI
24th Jul 2025412 AMAQI
24th Jul 2025433 AMAQI
24th Jul 2025444 AMAQI
29°C22/39°C
24th Jul 2025375 AMAQI
24th Jul 2025346 AMAQI
24th Jul 2025387 AMAQI
24th Jul 2025368 AMAQI
24th Jul 2025369 AMAQI
24th Jul 20253510 AMAQI
24th Jul 20253411 AMAQI
24th Jul 20253712 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025413 PMAQI
24th Jul 2025384 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025386 PMAQI
24th Jul 2025387 PMAQI
24th Jul 2025378 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253910 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20254112 AMAQI
25th Jul 2025381 AMAQI
25th Jul 2025382 AMAQI
25th Jul 2025393 AMAQI
25th Jul 2025404 AMAQI
27°C19/37°C
25th Jul 2025385 AMAQI
25th Jul 2025386 AMAQI
25th Jul 2025367 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025409 AMAQI
25th Jul 20254410 AMAQI
25th Jul 20254511 AMAQI
25th Jul 20254012 PMAQI
25th Jul 2025381 PMAQI
25th Jul 2025382 PMAQI
25th Jul 2025363 PMAQI
25th Jul 2025354 PMAQI
25th Jul 2025385 PMAQI
25th Jul 2025366 PMAQI
25th Jul 2025377 PMAQI
25th Jul 2025378 PMAQI
25th Jul 2025389 PMAQI
25th Jul 20254010 PMAQI
25th Jul 20254011 PMAQI
26th Jul 20254112 AMAQI
26th Jul 2025391 AMAQI
26th Jul 2025382 AMAQI
26th Jul 2025433 AMAQI
26th Jul 2025444 AMAQI
28°C20/38°C
26th Jul 2025435 AMAQI
26th Jul 2025486 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025488 AMAQI
26th Jul 2025419 AMAQI
26th Jul 20254210 AMAQI
26th Jul 20254411 AMAQI
26th Jul 20254312 PMAQI
26th Jul 2025421 PMAQI
26th Jul 2025372 PMAQI
26th Jul 2025423 PMAQI
26th Jul 2025444 PMAQI
26th Jul 2025405 PMAQI
26th Jul 2025416 PMAQI
26th Jul 2025407 PMAQI
26th Jul 2025408 PMAQI
26th Jul 2025399 PMAQI
26th Jul 20254010 PMAQI
26th Jul 20254111 PMAQI
27th Jul 20254212 AMAQI
27th Jul 2025431 AMAQI
27th Jul 2025422 AMAQI
27th Jul 2025423 AMAQI
27th Jul 2025444 AMAQI
29°C22/38°C
27th Jul 2025475 AMAQI
27th Jul 2025436 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025428 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20254510 AMAQI
27th Jul 20254211 AMAQI
27th Jul 20254312 PMAQI
27th Jul 2025481 PMAQI
27th Jul 2025472 PMAQI
27th Jul 2025443 PMAQI
27th Jul 2025454 PMAQI
27th Jul 2025485 PMAQI
27th Jul 2025486 PMAQI
27th Jul 2025467 PMAQI
27th Jul 2025428 PMAQI
27th Jul 2025469 PMAQI
27th Jul 20254610 PMAQI
27th Jul 20254511 PMAQI
28th Jul 20254712 AMAQI
28th Jul 2025461 AMAQI
28th Jul 2025442 AMAQI
28th Jul 2025503 AMAQI
28th Jul 2025524 AMAQI
27°C20/35°C
28th Jul 2025525 AMAQI
28th Jul 2025506 AMAQI
28th Jul 2025487 AMAQI
28th Jul 2025528 AMAQI
28th Jul 2025539 AMAQI
28th Jul 20254910 AMAQI
28th Jul 20254911 AMAQI
28th Jul 20255012 PMAQI
28th Jul 2025541 PMAQI
28th Jul 2025482 PMAQI
28th Jul 2025503 PMAQI
28th Jul 2025484 PMAQI
28th Jul 2025485 PMAQI
28th Jul 2025486 PMAQI
28th Jul 2025487 PMAQI
28th Jul 2025508 PMAQI
28th Jul 2025529 PMAQI
28th Jul 20255310 PMAQI
28th Jul 20255211 PMAQI
29th Jul 20255212 AMAQI
29th Jul 2025511 AMAQI
29th Jul 2025492 AMAQI
29th Jul 2025503 AMAQI
29th Jul 2025484 AMAQI
27°C19/36°C
29th Jul 2025475 AMAQI
29th Jul 2025506 AMAQI
29th Jul 2025507 AMAQI
29th Jul 2025488 AMAQI
29th Jul 2025489 AMAQI
29th Jul 20254710 AMAQI
29th Jul 20254811 AMAQI
29th Jul 20254812 PMAQI
29th Jul 2025471 PMAQI
29th Jul 2025482 PMAQI
29th Jul 2025473 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025505 PMAQI
29th Jul 2025506 PMAQI
29th Jul 2025497 PMAQI
29th Jul 2025528 PMAQI
29th Jul 2025529 PMAQI
29th Jul 20255010 PMAQI
29th Jul 20255411 PMAQI
30th Jul 20255412 AMAQI
30th Jul 2025501 AMAQI
30th Jul 2025482 AMAQI
30th Jul 2025483 AMAQI
30th Jul 2025434 AMAQI
25°C19/35°C
30th Jul 2025415 AMAQI
30th Jul 2025446 AMAQI
30th Jul 2025427 AMAQI
30th Jul 2025458 AMAQI
30th Jul 2025429 AMAQI
30th Jul 20254110 AMAQI
30th Jul 20254211 AMAQI
30th Jul 20254112 PMAQI
30th Jul 2025431 PMAQI
30th Jul 2025432 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025424 PMAQI
30th Jul 2025395 PMAQI
30th Jul 2025416 PMAQI
30th Jul 2025407 PMAQI
30th Jul 2025398 PMAQI
30th Jul 2025409 PMAQI
30th Jul 20254110 PMAQI
30th Jul 20254211 PMAQI
31st Jul 20254212 AMAQI
31st Jul 2025421 AMAQI
31st Jul 2025422 AMAQI
31st Jul 2025423 AMAQI
31st Jul 2025424 AMAQI
24°C17/31°C
31st Jul 2025415 AMAQI
31st Jul 2025436 AMAQI
31st Jul 2025487 AMAQI
31st Jul 2025498 AMAQI
31st Jul 2025509 AMAQI
31st Jul 20254710 AMAQI
31st Jul 20254411 AMAQI
31st Jul 20254412 PMAQI
31st Jul 2025471 PMAQI
31st Jul 2025452 PMAQI
31st Jul 2025433 PMAQI
31st Jul 2025424 PMAQI
31st Jul 2025415 PMAQI
31st Jul 2025406 PMAQI
31st Jul 2025407 PMAQI
31st Jul 2025438 PMAQI
31st Jul 2025429 PMAQI
31st Jul 20254310 PMAQI
31st Jul 20254211 PMAQI
1st Aug 20254312 AMAQI
1st Aug 2025421 AMAQI
1st Aug 2025432 AMAQI
1st Aug 2025423 AMAQI
1st Aug 2025424 AMAQI
22°C19/28°C
1st Aug 2025435 AMAQI
1st Aug 2025416 AMAQI
1st Aug 2025427 AMAQI
1st Aug 2025458 AMAQI
1st Aug 2025439 AMAQI
1st Aug 20254110 AMAQI
1st Aug 20254111 AMAQI
1st Aug 20254112 PMAQI
1st Aug 2025411 PMAQI
1st Aug 2025432 PMAQI
1st Aug 2025443 PMAQI
1st Aug 2025434 PMAQI
1st Aug 2025435 PMAQI
1st Aug 2025416 PMAQI
1st Aug 2025437 PMAQI
1st Aug 2025458 PMAQI
1st Aug 2025449 PMAQI
1st Aug 20254310 PMAQI
1st Aug 20254311 PMAQI
2nd Aug 20254112 AMAQI
2nd Aug 2025411 AMAQI
2nd Aug 2025412 AMAQI
2nd Aug 2025423 AMAQI
2nd Aug 2025394 AMAQI
21°C17/27°C
2nd Aug 2025375 AMAQI
2nd Aug 2025406 AMAQI
2nd Aug 2025397 AMAQI
2nd Aug 2025418 AMAQI
2nd Aug 2025409 AMAQI
2nd Aug 20253910 AMAQI
2nd Aug 20253711 AMAQI
2nd Aug 20253712 PMAQI
2nd Aug 2025371 PMAQI
2nd Aug 2025392 PMAQI
2nd Aug 2025383 PMAQI
2nd Aug 2025394 PMAQI
2nd Aug 2025405 PMAQI
2nd Aug 2025396 PMAQI
2nd Aug 2025387 PMAQI
2nd Aug 2025388 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20253910 PMAQI
2nd Aug 20253811 PMAQI
3rd Aug 20253912 AMAQI
3rd Aug 2025401 AMAQI
3rd Aug 2025382 AMAQI
3rd Aug 2025393 AMAQI
3rd Aug 2025384 AMAQI
24°C17/32°C
3rd Aug 2025385 AMAQI
3rd Aug 2025386 AMAQI
3rd Aug 2025437 AMAQI
3rd Aug 2025398 AMAQI
3rd Aug 2025419 AMAQI
3rd Aug 20254010 AMAQI
3rd Aug 20253811 AMAQI
3rd Aug 20253612 PMAQI
3rd Aug 2025381 PMAQI
3rd Aug 2025382 PMAQI
3rd Aug 2025383 PMAQI
3rd Aug 2025404 PMAQI
3rd Aug 2025405 PMAQI
3rd Aug 2025386 PMAQI
3rd Aug 2025397 PMAQI
3rd Aug 2025398 PMAQI
3rd Aug 2025399 PMAQI
3rd Aug 20253910 PMAQI
3rd Aug 20253911 PMAQI
4th Aug 20253912 AMAQI
4th Aug 2025391 AMAQI
4th Aug 2025392 AMAQI
4th Aug 2025383 AMAQI
4th Aug 2025364 AMAQI
24°C17/33°C
4th Aug 2025365 AMAQI
4th Aug 2025336 AMAQI
4th Aug 2025357 AMAQI
4th Aug 2025408 AMAQI
4th Aug 2025379 AMAQI
4th Aug 20253810 AMAQI
4th Aug 20253711 AMAQI
4th Aug 20254212 PMAQI
4th Aug 2025361 PMAQI
4th Aug 2025372 PMAQI
4th Aug 2025363 PMAQI
4th Aug 2025384 PMAQI
4th Aug 2025395 PMAQI
4th Aug 2025366 PMAQI
4th Aug 2025387 PMAQI
4th Aug 2025378 PMAQI
4th Aug 2025369 PMAQI
4th Aug 20253810 PMAQI
4th Aug 20253611 PMAQI
5th Aug 20253712 AMAQI
5th Aug 2025361 AMAQI
5th Aug 2025362 AMAQI
5th Aug 2025383 AMAQI
5th Aug 2025384 AMAQI
25°C18/33°C
5th Aug 2025405 AMAQI
5 AM5th Aug 2025376 AMAQI
5th Aug 2025377 AMAQI
5th Aug 2025388 AMAQI
5th Aug 2025419 AMAQI
5th Aug 20253910 AMAQI
5th Aug 20253911 AMAQI
5th Aug 20254012 PMAQI
12 PM5th Aug 2025381 PMAQI
5th Aug 2025372 PMAQI
5th Aug 2025363 PMAQI
5th Aug 2025384 PMAQI
5th Aug 2025395 PMAQI
5th Aug 2025376 PMAQI
8 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 PM
43AQI
16 hours / Day
480 hours / Month
Avg. Lowest Time
5 AM - 8 PM
43AQI
16 hours / Day
480 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 PM (Avg. 43), while the lowest AQI was between 5 AM to 8 PM (Avg. 43).
Night time
Avg. Highest Time
12 AM - 11 PM
44AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
44AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 44), while the lowest AQI was between 12 AM to 11 PM (Avg. 44).
2025 Days Vs Air Quality
Sliven, Sliven Province, Bulgaria
2025
38%
81
63%
135
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
81 DaysModerate
135 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 38%
Health Risk Level:
High
In 2025, 38% of 217 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Sliven, Sliven Province, Bulgaria
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
88AQI
88AQI
2nd January 2025
82AQI
82AQI
3rd January 2025
79AQI
79AQI
4th January 2025
73AQI
73AQI
5th January 2025
68AQI
68AQI
6th January 2025
67AQI
67AQI
7th January 2025
69AQI
69AQI
8th January 2025
70AQI
70AQI
9th January 2025
70AQI
70AQI
10th January 2025
70AQI
70AQI
11th January 2025
66AQI
66AQI
12th January 2025
62AQI
62AQI
13th January 2025
60AQI
60AQI
14th January 2025
58AQI
58AQI
15th January 2025
58AQI
58AQI
16th January 2025
59AQI
59AQI
17th January 2025
61AQI
61AQI
18th January 2025
66AQI
66AQI
19th January 2025
71AQI
71AQI
20th January 2025
71AQI
71AQI
21st January 2025
73AQI
73AQI
22nd January 2025
75AQI
75AQI
23rd January 2025
76AQI
76AQI
24th January 2025
77AQI
77AQI
25th January 2025
75AQI
75AQI
26th January 2025
73AQI
73AQI
27th January 2025
72AQI
72AQI
28th January 2025
72AQI
72AQI
29th January 2025
68AQI
68AQI
30th January 2025
69AQI
69AQI
31st January 2025
70AQI
70AQI
1st February 2025
74AQI
74AQI
2nd February 2025
72AQI
72AQI
3rd February 2025
72AQI
72AQI
4th February 2025
69AQI
69AQI
5th February 2025
67AQI
67AQI
6th February 2025
64AQI
64AQI
7th February 2025
63AQI
63AQI
8th February 2025
62AQI
62AQI
9th February 2025
61AQI
61AQI
10th February 2025
60AQI
60AQI
11th February 2025
61AQI
61AQI
12th February 2025
61AQI
61AQI
13th February 2025
62AQI
62AQI
14th February 2025
62AQI
62AQI
15th February 2025
64AQI
64AQI
16th February 2025
64AQI
64AQI
17th February 2025
62AQI
62AQI
18th February 2025
61AQI
61AQI
19th February 2025
60AQI
60AQI
20th February 2025
60AQI
60AQI
21st February 2025
59AQI
59AQI
22nd February 2025
59AQI
59AQI
23rd February 2025
59AQI
59AQI
24th February 2025
60AQI
60AQI
25th February 2025
62AQI
62AQI
26th February 2025
67AQI
67AQI
27th February 2025
66AQI
66AQI
28th February 2025
68AQI
68AQI
1st March 2025
68AQI
68AQI
2nd March 2025
63AQI
63AQI
3rd March 2025
61AQI
61AQI
4th March 2025
60AQI
60AQI
5th March 2025
62AQI
62AQI
6th March 2025
62AQI
62AQI
7th March 2025
61AQI
61AQI
8th March 2025
61AQI
61AQI
9th March 2025
63AQI
63AQI
10th March 2025
63AQI
63AQI
11th March 2025
63AQI
63AQI
12th March 2025
63AQI
63AQI
13th March 2025
61AQI
61AQI
14th March 2025
60AQI
60AQI
15th March 2025
58AQI
58AQI
16th March 2025
56AQI
56AQI
17th March 2025
54AQI
54AQI
18th March 2025
51AQI
51AQI
19th March 2025
48AQI
48AQI
20th March 2025
48AQI
48AQI
21st March 2025
51AQI
51AQI
22nd March 2025
53AQI
53AQI
23rd March 2025
53AQI
53AQI
24th March 2025
54AQI
54AQI
25th March 2025
56AQI
56AQI
26th March 2025
58AQI
58AQI
27th March 2025
58AQI
58AQI
28th March 2025
58AQI
58AQI
29th March 2025
57AQI
57AQI
30th March 2025
56AQI
56AQI
31st March 2025
56AQI
56AQI
1st April 2025
54AQI
54AQI
2nd April 2025
52AQI
52AQI
3rd April 2025
52AQI
52AQI
4th April 2025
51AQI
51AQI
5th April 2025
50AQI
50AQI
6th April 2025
46AQI
46AQI
7th April 2025
42AQI
42AQI
8th April 2025
42AQI
42AQI
9th April 2025
42AQI
42AQI
10th April 2025
43AQI
43AQI
11th April 2025
39AQI
39AQI
12th April 2025
36AQI
36AQI
13th April 2025
37AQI
37AQI
14th April 2025
39AQI
39AQI
15th April 2025
40AQI
40AQI
16th April 2025
44AQI
44AQI
17th April 2025
44AQI
44AQI
18th April 2025
42AQI
42AQI
19th April 2025
42AQI
42AQI
20th April 2025
42AQI
42AQI
21st April 2025
41AQI
41AQI
22nd April 2025
41AQI
41AQI
23rd April 2025
41AQI
41AQI
24th April 2025
42AQI
42AQI
25th April 2025
43AQI
43AQI
26th April 2025
43AQI
43AQI
27th April 2025
41AQI
41AQI
28th April 2025
39AQI
39AQI
29th April 2025
37AQI
37AQI
30th April 2025
37AQI
37AQI
1st May 2025
43AQI
43AQI
2nd May 2025
45AQI
45AQI
3rd May 2025
62AQI
62AQI
4th May 2025
50AQI
50AQI
5th May 2025
51AQI
51AQI
6th May 2025
53AQI
53AQI
7th May 2025
52AQI
52AQI
8th May 2025
53AQI
53AQI
9th May 2025
57AQI
57AQI
10th May 2025
57AQI
57AQI
11th May 2025
48AQI
48AQI
12th May 2025
54AQI
54AQI
13th May 2025
53AQI
53AQI
14th May 2025
52AQI
52AQI
15th May 2025
53AQI
53AQI
16th May 2025
54AQI
54AQI
17th May 2025
49AQI
49AQI
18th May 2025
53AQI
53AQI
19th May 2025
52AQI
52AQI
20th May 2025
57AQI
57AQI
21st May 2025
53AQI
53AQI
22nd May 2025
55AQI
55AQI
23rd May 2025
53AQI
53AQI
24th May 2025
52AQI
52AQI
25th May 2025
51AQI
51AQI
26th May 2025
43AQI
43AQI
27th May 2025
42AQI
42AQI
28th May 2025
42AQI
42AQI
29th May 2025
49AQI
49AQI
30th May 2025
46AQI
46AQI
31st May 2025
44AQI
44AQI
1st June 2025
44AQI
44AQI
2nd June 2025
44AQI
44AQI
3rd June 2025
44AQI
44AQI
4th June 2025
47AQI
47AQI
5th June 2025
51AQI
51AQI
6th June 2025
53AQI
53AQI
7th June 2025
55AQI
55AQI
8th June 2025
54AQI
54AQI
9th June 2025
54AQI
54AQI
10th June 2025
56AQI
56AQI
11th June 2025
57AQI
57AQI
12th June 2025
58AQI
58AQI
13th June 2025
54AQI
54AQI
14th June 2025
53AQI
53AQI
15th June 2025
51AQI
51AQI
16th June 2025
53AQI
53AQI
17th June 2025
55AQI
55AQI
18th June 2025
52AQI
52AQI
19th June 2025
55AQI
55AQI
20th June 2025
55AQI
55AQI
21st June 2025
52AQI
52AQI
22nd June 2025
51AQI
51AQI
23rd June 2025
50AQI
50AQI
24th June 2025
51AQI
51AQI
25th June 2025
50AQI
50AQI
26th June 2025
51AQI
51AQI
27th June 2025
52AQI
52AQI
28th June 2025
51AQI
51AQI
29th June 2025
49AQI
49AQI
30th June 2025
46AQI
46AQI
1st July 2025
47AQI
47AQI
2nd July 2025
44AQI
44AQI
3rd July 2025
41AQI
41AQI
4th July 2025
42AQI
42AQI
5th July 2025
46AQI
46AQI
6th July 2025
48AQI
48AQI
7th July 2025
49AQI
49AQI
8th July 2025
50AQI
50AQI
9th July 2025
51AQI
51AQI
10th July 2025
49AQI
49AQI
11th July 2025
49AQI
49AQI
12th July 2025
48AQI
48AQI
13th July 2025
49AQI
49AQI
14th July 2025
48AQI
48AQI
15th July 2025
45AQI
45AQI
16th July 2025
44AQI
44AQI
17th July 2025
45AQI
45AQI
18th July 2025
39AQI
39AQI
19th July 2025
36AQI
36AQI
20th July 2025
35AQI
35AQI
21st July 2025
40AQI
40AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
41AQI
41AQI
24th July 2025
39AQI
39AQI
25th July 2025
39AQI
39AQI
26th July 2025
42AQI
42AQI
27th July 2025
45AQI
45AQI
28th July 2025
50AQI
50AQI
29th July 2025
49AQI
49AQI
30th July 2025
43AQI
43AQI
31st July 2025
43AQI
43AQI
1st August 2025
43AQI
43AQI
2nd August 2025
39AQI
39AQI
3rd August 2025
39AQI
39AQI
4th August 2025
37AQI
37AQI
70AQI
64AQI
58AQI
43AQI
51AQI
52AQI
44AQI
40AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202554AQI
31
28
2
29
26
4
11
20
8
22
30
1
4
81
135
Highest AQI recorded in
January70AQI
Lowest AQI recorded in
August40AQI
202429AQI
30
1
29
19
1
28
2
31
30
31
30
24
21
10
8
22
31
281
67
Highest AQI recorded in
December58AQI
Lowest AQI recorded in
July13AQI
202321AQI
22
10
15
28
31
28
28
1
30
29
1
30
1
28
27
4
306
7
Highest AQI recorded in
December32AQI
Lowest AQI recorded in
January7AQI
20229AQI
28
21
31
30
30
30
24
2
29
24
30
31
310
Highest AQI recorded in
February12AQI
Lowest AQI recorded in
August6AQI
202112AQI
24
28
29
18
31
30
31
31
30
31
30
31
344
Highest AQI recorded in
February18AQI
Lowest AQI recorded in
October8AQI
202011AQI
13
9
17
30
31
31
30
28
28
28
245
Highest AQI recorded in
March16AQI
Lowest AQI recorded in
May9AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
54AQILeast Polluted Year Recorded
2022(Avg.)
9AQISliven's annual 2025 AQI (54) shows an average percentage change of 299.2% (worsened AQI) compared to previous years: 2020 (11), 2021 (12), 2022 (9), 2023 (21), 2024 (29).
