Air at the Sarajevo-BJ-Automat station
Centar, Sarajevo Canton · Federation of Bosnia and Herzegovina
Network: Federal Hydrometeorological Institute · Station code: BA0029A
This year, up to yesterday (October 6)
at least
3 days
with a daily average of nitrogen dioxide (NO₂) above the legal limit of 85 µg/m³.
No such day is allowed.
The number allowed for the whole year has been exceeded.at least 3 days more than allowed
In 2025: 3 days above the limit, none allowed.
at least
29 days
with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.
The target value allows 25 such days a year, averaged over three years.
Worst day: January 23, 2026, NO₂ 111 µg/m³ as a daily average, 1.3 times the limit.
At least 3 days with a daily average of PM10 above 150 µg/m³, the warning threshold in the Federation of BiH.
These are measured values only. Whether a warning or alert episode has been declared is decided and published by the competent authorities.
Also: at least 2 days above the legal daily limit for SO₂ of 125 µg/m³ (too few readings to compare with the allowed number).
Also: at least 14 hours above the legal hourly limit for SO₂ of 350 µg/m³ (too few readings to compare with the allowed number).
Also: at least 20 days above the legal daily limit for PM10 of 50 µg/m³ (too few readings to compare with the allowed number).
Daily average for 208 of 279 days · data for 2026 not yet finally verified · Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)
Fair
Air now · Measured at 21:00
Latest values
Latest value: 21:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 18.3 µg/m³ | Fair |
| NO₂ | 23.2 µg/m³ | Fair |
| O₃ | 96 µg/m³ | Fair |
| SO₂ | 10.7 µg/m³ | Good |
How the air is changing
Over the last seven days there was more NO₂ and O₃ and less SO₂ in the air than the week before.
- PM10: average 16 µg/m³, week before 14.7 µg/m³
- PM2.5: too few readings to compare
- NO₂: average 13.8 µg/m³, week before 11.5 µg/m³
- O₃: average 80.9 µg/m³, week before 60.9 µg/m³
- SO₂: average 7.3 µg/m³, week before 10.9 µg/m³
There are not enough readings to compare with the month before.
- PM10: too few readings to compare
- PM2.5: too few readings to compare
- NO₂: too few readings to compare
- O₃: too few readings to compare
- SO₂: too few readings to compare
Show
Particulate matter PM10
18.3
Nowµg/m³
Measured at 21:00
25.7
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
16
Last 7 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 30 days
measured in 48 % of hours · provisional
too few readings
Last 12 months
measured in 89 % of hours · 1 month with too few readings · provisional
Days in 2025: PM10, daily average above 50 µg/m³
54 days above the limit.
- above the limit
- below the limit
Days above the limit with values (54)
- Jan 1 227
- Jan 2 169
- Jan 4 56
- Jan 5 80
- Jan 15 55
- Jan 16 74
- Jan 17 98
- Jan 18 104
- Jan 19 164
- Jan 20 255
- Jan 21 299
- Jan 22 213
- Jan 30 52
- Feb 2 103
- Feb 3 50
- Feb 6 61
- Feb 7 86
- Feb 8 107
- Feb 9 58
- Feb 10 102
- Feb 11 130
- Feb 12 65
- Feb 21 52
- Feb 23 86
- Feb 24 89
- Mar 15 82
- Oct 17 60
- Oct 18 63
- Nov 6 51
- Nov 7 71
- Nov 8 51
- Nov 9 76
- Nov 19 55
- Nov 20 54
- Nov 30 50
- Dec 2 52
- Dec 3 94
- Dec 4 60
- Dec 9 58
- Dec 10 70
- Dec 11 68
- Dec 12 80
- Dec 13 75
- Dec 14 70
- Dec 15 137
- Dec 16 240
- Dec 17 149
- Dec 18 66
- Dec 19 95
- Dec 20 68
- Dec 23 53
- Dec 24 70
- Dec 29 82
- Dec 30 95
Values in µg/m³, limit 50 µg/m³.
Months of 2025
| Month | Days above 50 | Highest day | No readings |
|---|---|---|---|
| January | 13 above the number allowed | 299 | 0 |
| February | 12 above the number allowed | 130 | 0 |
| March | 1 above the number allowed | 82 | 0 |
| April | 0 | 32 | 0 |
| May | 0 | 18 | 0 |
| June | 0 | 37 | 0 |
| July | 0 | 38 | 0 |
| August | 0 | 30 | 0 |
| September | 0 | 26 | 0 |
| October | 2 above the number allowed | 63 | 0 |
| November | 7 above the number allowed | 76 | 0 |
| December | 19 above the number allowed | 240 | 0 |
Values in µg/m³. ■ marks a month with at least one day above the limit; the number allowed applies to the whole year. “No readings”: days on which not a single reading came from the station.
Values as a table
| Hour to | µg/m³ | Note |
|---|---|---|
| Wednesday, 10/7 | ||
| 22:00 | 50 | model estimate, not counted |
| 21:00 | 18.3 | |
| 20:00 | 21.2 | |
| 19:00 | 26 | |
| 18:00 | 15 | |
| 17:00 | 14.2 | |
| 16:00 | 13.1 | |
| 15:00 | 14.3 | |
| 14:00 | 15 | |
| 13:00 | 36.3 | |
| 12:00 | 41.5 | |
| 11:00 | 53.6 | |
| 10:00 | 45.6 | |
| 09:00 | 47.3 | |
| 08:00 | 24.5 | |
| 07:00 | 16.9 | |
| 06:00 | 17.8 | |
| 05:00 | 19.4 | |
| 04:00 | 21.6 | |
| 03:00 | 23.9 | |
| 02:00 | 24.1 | |
| 01:00 | 27.1 | |
| Tuesday, 10/6 | ||
| 00:00 | 28.5 | |
| 23:00 | 30.7 | |
| 22:00 | 27.8 | |
| 21:00 | 27 | |
| 20:00 | 44 | |
| 19:00 | 37.5 | |
| 18:00 | 18.8 | |
| 17:00 | 18.3 | |
| 16:00 | 24.3 | |
| 15:00 | 33.2 | |
| 14:00 | 36.2 | |
| 13:00 | 29.9 | |
| 12:00 | 29.6 | |
| 11:00 | 36 | |
| 10:00 | 26.7 | |
| 09:00 | 17.3 | |
| 08:00 | 15 | |
| 07:00 | 12.7 | |
| 06:00 | 12.1 | |
| 05:00 | 12.4 | |
| 04:00 | 12.5 | |
| 03:00 | 14.4 | |
| 02:00 | 15.3 | |
| 01:00 | 17.2 | |
| Monday, 10/5 | ||
| 00:00 | 20.1 | |
| 23:00 | 16.3 | |
| 22:00 | 15 | |
| 21:00 | 21.4 | |
| 20:00 | 18.3 | |
| 19:00 | 31.2 | |
| 18:00 | 20.3 | |
| 17:00 | 13 | |
| 16:00 | 19.4 | |
| 15:00 | 29.3 | |
| 14:00 | 33.7 | |
| 13:00 | 27.7 | |
| 12:00 | 22.5 | |
| 11:00 | 24.7 | |
| 10:00 | 27.2 | |
| 09:00 | 15.4 | |
| 08:00 | 9.3 | |
| 07:00 | 8.2 | |
| 06:00 | 7.9 | |
| 05:00 | 8.1 | |
| 04:00 | 9.1 | |
| 03:00 | 10.4 | |
| 02:00 | 11.4 | |
| 01:00 | 11.9 | |
| Sunday, 10/4 | ||
| 00:00 | 11.5 | |
| 23:00 | 12.1 | |
| 22:00 | 11.1 | |
| 21:00 | 11.5 | |
| 20:00 | 17.6 | |
| 19:00 | 20 | |
| 18:00 | 14.7 | |
| 17:00 | 10.1 | |
| 16:00 | 14.3 | |
| 15:00 | 14.8 | |
| 14:00 | 19.7 | |
| 13:00 | 18.3 | |
| 12:00 | 15 | |
| 11:00 | 15.9 | |
| 10:00 | 21.6 | |
| 09:00 | 11.9 | |
| 08:00 | 10.5 | |
| 07:00 | 8.6 | |
| 06:00 | 9.8 | |
| 05:00 | 10.6 | |
| 04:00 | 12.1 | |
| 03:00 | 11.7 | |
| 02:00 | 12.8 | |
| 01:00 | 15.1 | |
| Saturday, 10/3 | ||
| 00:00 | 13.4 | |
| 23:00 | 12.5 | |
| 22:00 | 10.6 | |
| 21:00 | 10.7 | |
| 20:00 | 11.8 | |
| 19:00 | 10.1 | |
| 18:00 | 8 | |
| 17:00 | 6.9 | |
| 16:00 | 8.3 | |
| 15:00 | 9.3 | |
| 14:00 | 9.2 | |
| 13:00 | 12.5 | |
| 12:00 | 20.2 | |
| 11:00 | 25.8 | |
| 10:00 | 20.8 | |
| 09:00 | 14.6 | |
| 08:00 | 13.6 | |
| 07:00 | 12 | |
| 06:00 | 11 | |
| 05:00 | 13.6 | |
| 04:00 | 11.3 | |
| 03:00 | 12.6 | |
| 02:00 | 12.3 | |
| 01:00 | 12.8 | |
| Friday, 10/2 | ||
| 00:00 | 13.1 | |
| 23:00 | 12.2 | |
| 22:00 | 10.8 | |
| 21:00 | 9.3 | |
| 20:00 | 8.6 | |
| 19:00 | 11.8 | |
| 18:00 | 9.1 | |
| 17:00 | 12.5 | |
| 16:00 | 6.6 | |
| 15:00 | 10.5 | |
| 14:00 | 22.8 | |
| 13:00 | 25.9 | |
| 12:00 | 25.3 | |
| 11:00 | 24.7 | |
| 10:00 | 28.6 | |
| 09:00 | 16.3 | |
| 08:00 | 13.4 | |
| 07:00 | 9.1 | |
| 06:00 | 10.9 | |
| 05:00 | 11.8 | |
| 04:00 | 10.9 | |
| 03:00 | 11 | |
| 02:00 | 11.2 | |
| 01:00 | 12.1 | |
| Thursday, 10/1 | ||
| 00:00 | 14.7 | |
| 23:00 | 12.5 | |
| 22:00 | 10.1 | |
| 21:00 | 8.5 | |
| 20:00 | 8.3 | |
| 19:00 | 8.7 | |
| 18:00 | 10.7 | |
| 17:00 | 13.1 | |
| 16:00 | 8.4 | |
| 15:00 | 7.3 | |
| 14:00 | 8.8 | |
| 13:00 | 12.3 | |
| 12:00 | 20.8 | |
| 11:00 | 26.8 | |
| 10:00 | 30.3 | |
| 09:00 | 21.7 | |
| 08:00 | 13.7 | |
| 07:00 | 11.1 | |
| 06:00 | 12.2 | |
| 05:00 | 12.6 | |
| 04:00 | 12.5 | |
| 03:00 | 13.2 | |
| 02:00 | 12.6 | |
| 01:00 | 13.4 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 24.1 | provisional |
| Mon, 10/5 | 18 | provisional |
| Sun, 10/4 | 13.8 | provisional |
| Sat, 10/3 | 12.7 | provisional |
| Fri, 10/2 | 14.1 | provisional |
| Thu, 10/1 | 13.5 | provisional |
| Wed, 9/30 | 15.8 | provisional |
| Tue, 9/29 | 17.1 | provisional |
| Mon, 9/28 | 16.6 | provisional |
| Sun, 9/27 | 16.4 | provisional |
| Sat, 9/26 | 19.8 | provisional |
| Fri, 9/25 | 10.4 | provisional |
| Thu, 9/24 | 12.5 | provisional |
| Wed, 9/23 | 9.6 | provisional |
| Tue, 9/22 | too few readings | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | no data from the station | |
| Tue, 9/8 | no data from the station | |
| Mon, 9/7 | no data from the station |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 16 | 14.2 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 16.7 | measured in 30 % of hours · provisional · 20 days without data from the station |
| August 2026 | 23.4 | 17.8 | measured in 96 % of hours · provisional |
| July 2026 | 14.2 | 17.4 | measured in 92 % of hours · provisional |
| June 2026 | 17.3 | 22 | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 13.3 | 11.9 | measured in 94 % of hours · provisional |
| April 2026 | 23.7 | 19 | measured in 79 % of hours · provisional · 4 days without data from the station |
| March 2026 | 29.1 | 23.7 | measured in 100 % of hours · provisional |
| February 2026 | 23.6 | 53.3 | measured in 100 % of hours · provisional |
| January 2026 | 69 | 70.6 | measured in 88 % of hours · provisional · 2 days without data from the station |
| December 2025 | 67.7 | 67.1 | measured in 100 % of hours · verified |
| November 2025 | 34.6 | 65 | measured in 100 % of hours · verified |
PM10 by year
Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days above 50 µg/m³ (allowed 35) | ≥ 20² | 54 above the number allowed | 52 above the number allowed |
| Days above 150 µg/m³ (warning threshold FBiH) | ≥ 3 above the number allowed | 7 above the number allowed | 7 above the number allowed |
| Days above 300 µg/m³ (alert threshold FBiH) | 0 | 0 | 0 |
| Annual average, µg/m³ (legal limit 40) | too few | 31.4 | 32.5 |
| Highest daily average, µg/m³ | 264January 22 | 299January 21 | 257December 18 |
| Highest hourly value, µg/m³ | 373January 22 | 422January 1 | 465March 27 |
| Hours measured | 86 % | 100 % | 93 % |
| Days without any reading from the station | 27 | 0 | 8 |
* 2026 up to October 6; the average since the start of the year is not yet an annual average.
The monitoring networks have not yet finally verified this year’s data. The EEA publishes verified values once a year.
≥ means at least: more than a tenth of the days or hours are missing, so the real number may be higher.
² Too few readings to compare with the number allowed: the figure covers only what was measured.
Unverified hourly values of particulate matter from 975 µg/m³ up, and single spikes from 500 µg/m³ up between low values, count as missing. In the verified data for BiH from 2023 to 2025 no hour was above 600 µg/m³.
■ and a figure in red: more than is allowed for the whole year.
There is no allowed number for the warning and alert thresholds: every such hour or day is in red.
The column for 2023 is shown on wider screens.
Compared with the new EU rules and the WHO recommendation
This is not the yardstick for the verdict above, only a comparison. From 2030 the EU tightens its limits (Directive (EU) 2024/2881), and since 2021 the World Health Organization has recommended even lower values.
- EU from 2030: daily 45 µg/m³, 18 days allowed. In 2025 there were 61 such days.
- WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2025 there were 61 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 31 µg/m³.
- WHO 2021: annual average 15 µg/m³. Average in 2025: 31 µg/m³.
Sources: Directive (EU) 2024/2881, Annex I; WHO global air quality guidelines 2021, table 0.1. Checked against the texts on 7 October 2026.
The worst days of 2025
| Day | Average | Times the limit |
|---|---|---|
| Jan 21, 2025 | 299 | 6.0 × |
| Jan 20, 2025 | 255 | 5.1 × |
| Dec 16, 2025 | 240 | 4.8 × |
| Jan 1, 2025 | 227 | 4.5 × |
| Jan 22, 2025 | 213 | 4.3 × |
Daily average in µg/m³, daily limit 50 µg/m³. Days with the same unverified value over many hours are not on this list.
Particulate matter PM2.5
no measurement
Now
too few readings
Last 24 hours
measured in 0 % of hours
too few readings
Last 7 days
measured in 0 % of hours
too few readings
Last 30 days
measured in 0 % of hours
too few readings
Last 12 months
measured in 24 % of hours · verified
Months of 2025
| Month | Highest day | No readings |
|---|---|---|
| January | 286 | 0 |
| February | 123 | 0 |
| March | 38 | 0 |
| April | 29 | 0 |
| May | 12 | 0 |
| June | 28 | 0 |
| July | 21 | 0 |
| August | 19 | 0 |
| September | 19 | 0 |
| October | 56 | 0 |
| November | 73 | 0 |
| December | 227 | 0 |
Values in µg/m³. ■ marks a month with at least one day above the limit; the number allowed applies to the whole year. “No readings”: days on which not a single reading came from the station.
There are no readings for this period.
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | no measurement | |
| Mon, 10/5 | no measurement | |
| Sun, 10/4 | no measurement | |
| Sat, 10/3 | no measurement | |
| Fri, 10/2 | no measurement | |
| Thu, 10/1 | no measurement | |
| Wed, 9/30 | no measurement | |
| Tue, 9/29 | no measurement | |
| Mon, 9/28 | no measurement | |
| Sun, 9/27 | no measurement | |
| Sat, 9/26 | no measurement | |
| Fri, 9/25 | no measurement | |
| Thu, 9/24 | no measurement | |
| Wed, 9/23 | no measurement | |
| Tue, 9/22 | no measurement | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | no data from the station | |
| Tue, 9/8 | no data from the station | |
| Mon, 9/7 | no data from the station |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | too few readings | 11.5 | year before: same days |
| September 2026 | too few readings | 9.9 | 20 days without data from the station |
| August 2026 | too few readings | 11.1 | |
| July 2026 | too few readings | 10.7 | |
| June 2026 | too few readings | 14 | 1 day without data from the station |
| May 2026 | too few readings | 7.8 | |
| April 2026 | too few readings | 12.9 | 4 days without data from the station |
| March 2026 | too few readings | 17 | |
| February 2026 | too few readings | 48.2 | |
| January 2026 | too few readings | 65.2 | 2 days without data from the station |
| December 2025 | 62.2 | 63.5 | measured in 100 % of hours · verified |
| November 2025 | 30.3 | 60.2 | measured in 100 % of hours · verified |
PM2.5 by year
Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)
| Measure | 2025 | 2024 | 2023 |
|---|---|---|---|
| Days above 140 µg/m³ (warning threshold FBiH) | 8 above the number allowed | 8 above the number allowed | 3 above the number allowed |
| Days above 280 µg/m³ (alert threshold FBiH) | 1 above the number allowed | 0 | 0 |
| Annual average, µg/m³ (legal limit 25) | 25.5 above the number allowed | 26.1 above the number allowed | 23.9 |
| Highest daily average, µg/m³ | 286January 21 | 243December 18 | 228December 20 |
| Highest hourly value, µg/m³ | 406January 1 | 376December 18 | 371December 21 |
| Hours measured | 100 % | 93 % | 98 % |
| Days without any reading from the station | 0 | 8 | 5 |
Unverified hourly values of particulate matter from 975 µg/m³ up, and single spikes from 500 µg/m³ up between low values, count as missing. In the verified data for BiH from 2023 to 2025 no hour was above 600 µg/m³.
■ and a figure in red: more than is allowed for the whole year.
There is no allowed number for the warning and alert thresholds: every such hour or day is in red.
Compared with the new EU rules and the WHO recommendation
This is not the yardstick for the verdict above, only a comparison. From 2030 the EU tightens its limits (Directive (EU) 2024/2881), and since 2021 the World Health Organization has recommended even lower values.
- EU from 2030: daily 25 µg/m³, 18 days allowed. In 2025 there were 99 such days.
- WHO 2021: daily 15 µg/m³, at most three to four days a year. In 2025 there were 166 such days.
- EU from 2030: annual average 10 µg/m³. Average in 2025: 26 µg/m³.
- WHO 2021: annual average 5 µg/m³. Average in 2025: 26 µg/m³.
Sources: Directive (EU) 2024/2881, Annex I; WHO global air quality guidelines 2021, table 0.1. Checked against the texts on 7 October 2026.
Nitrogen dioxide NO₂
23.2
Nowµg/m³
Measured at 21:00
21.2
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
13.8
Last 7 daysµg/m³
measured in 92 % of hours · provisional
too few readings
Last 30 days
measured in 46 % of hours · provisional
too few readings
Last 12 months
measured in 84 % of hours · 1 month with too few readings · provisional
Days in 2025: NO₂, daily average above 85 µg/m³
3 days above the limit.
- above the limit
- below the limit
- too few readings for the day
- no NO₂ data in the EEA database
Days above the limit with values (3)
- Jan 1 105
- Jan 2 94
- Jan 21 96
Values in µg/m³, limit 85 µg/m³.
Months of 2025
| Month | Days above 85 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 3 above the number allowed | 0 | 105 | 0 |
| February | 0 | 0 | 64 | 0 |
| March | 0 | 0 | 39 | 0 |
| April | 0 | 0 | 39 | 0 |
| May | 0 | 0 | 20 | 0 |
| June | 0 | 0 | 18 | 0 |
| July | 0 | 0 | 21 | 0 |
| August | 0 | 0 | 22 | 0 |
| September | 0 | 0 | 18 | 0 |
| October | 0 | 0 | 42 | 0 |
| November | 0 | 0 | 46 | 0 |
| December | 0 | 0 | 62 | 0 |
Values in µg/m³. ■ marks a month with at least one day above the limit; the number allowed applies to the whole year. “No readings”: days on which not a single reading came from the station.
Values as a table
| Hour to | µg/m³ | Note |
|---|---|---|
| Wednesday, 10/7 | ||
| 22:00 | 22 | model estimate, not counted |
| 21:00 | 23.2 | |
| 20:00 | 16.9 | |
| 19:00 | 40.3 | |
| 18:00 | 34 | |
| 17:00 | 31.1 | |
| 16:00 | 17.1 | |
| 15:00 | 16.5 | |
| 14:00 | 17.1 | |
| 13:00 | 53.6 | |
| 12:00 | 53.3 | |
| 11:00 | 59.1 | |
| 10:00 | 41.4 | |
| 09:00 | 20.9 | |
| 08:00 | 12.9 | |
| 07:00 | 4.2 | |
| 06:00 | 1.3 | |
| 05:00 | 0.7 | |
| 04:00 | 1.6 | |
| 03:00 | 2.1 | |
| 02:00 | 3.7 | |
| 01:00 | 6.6 | |
| Tuesday, 10/6 | ||
| 00:00 | 8.3 | |
| 23:00 | 12.2 | |
| 22:00 | 14.1 | |
| 21:00 | 26.1 | |
| 20:00 | 39.2 | |
| 19:00 | 55 | |
| 18:00 | 52.7 | |
| 17:00 | 37.3 | |
| 16:00 | 31.1 | |
| 15:00 | 37.6 | |
| 14:00 | 53 | |
| 13:00 | 50.4 | |
| 12:00 | 50.6 | |
| 11:00 | 58.2 | |
| 10:00 | 38.3 | |
| 09:00 | 19.3 | |
| 08:00 | 10.8 | |
| 07:00 | 4 | |
| 06:00 | 0.9 | |
| 05:00 | 0.5 | |
| 04:00 | 0.8 | |
| 03:00 | 1.6 | |
| 02:00 | 4.1 | |
| 01:00 | 8.6 | |
| Monday, 10/5 | ||
| 00:00 | 9.9 | |
| 23:00 | 6.1 | |
| 22:00 | 7.1 | |
| 21:00 | 12.9 | |
| 20:00 | 18.2 | |
| 19:00 | 27.6 | |
| 18:00 | 39.4 | |
| 17:00 | 37.1 | |
| 16:00 | 20.6 | |
| 15:00 | 36.8 | |
| 14:00 | 41.4 | |
| 13:00 | 45.3 | |
| 12:00 | 41.4 | |
| 11:00 | 37.2 | |
| 10:00 | 47.4 | |
| 09:00 | 15.7 | |
| 08:00 | 9.1 | |
| 07:00 | 2.7 | |
| 06:00 | 0.4 | |
| 05:00 | 0.3 | |
| 04:00 | 0.8 | |
| 03:00 | 0.9 | |
| 02:00 | 3.3 | |
| 01:00 | 3.9 | |
| Sunday, 10/4 | ||
| 00:00 | 4.6 | |
| 23:00 | 4.7 | |
| 22:00 | 6.2 | |
| 21:00 | 5.2 | |
| 20:00 | 11.7 | |
| 19:00 | 18.6 | |
| 18:00 | 28.3 | |
| 17:00 | 19.6 | |
| 16:00 | 16.9 | |
| 15:00 | 14.5 | |
| 14:00 | 21.4 | |
| 13:00 | 19.1 | |
| 12:00 | 14.1 | |
| 11:00 | 15.3 | |
| 10:00 | 23.6 | |
| 09:00 | 6.3 | |
| 08:00 | 2.5 | |
| 07:00 | 0.7 | |
| 06:00 | 0.1 | |
| 05:00 | 0.2 | |
| 04:00 | 1.4 | |
| 03:00 | 1.2 | |
| 02:00 | 2.1 | |
| 01:00 | 3.8 | |
| Saturday, 10/3 | ||
| 00:00 | 4.1 | |
| 23:00 | 6 | |
| 22:00 | 5.7 | |
| 21:00 | 4.9 | |
| 20:00 | 5.1 | |
| 19:00 | 3.8 | |
| 18:00 | 1.7 | |
| 17:00 | 0.8 | |
| 16:00 | 0.4 | |
| 13:00 | 5.9 | |
| 12:00 | 22.6 | |
| 11:00 | 34 | |
| 10:00 | 29.7 | |
| 09:00 | 12 | |
| 08:00 | 6.7 | |
| 07:00 | 2.6 | |
| 06:00 | 2.1 | |
| 05:00 | 2.2 | |
| 04:00 | 1.8 | |
| 03:00 | 1.9 | |
| 02:00 | 2 | |
| 01:00 | 3.2 | |
| Friday, 10/2 | ||
| 00:00 | 5.2 | |
| 23:00 | 5 | |
| 22:00 | 5.3 | |
| 21:00 | 5.7 | |
| 20:00 | 0.9 | |
| 19:00 | 0.7 | |
| 18:00 | 1.3 | |
| 17:00 | 23 | |
| 16:00 | 1.2 | |
| 15:00 | 10.3 | |
| 14:00 | 26.5 | |
| 13:00 | 36.6 | |
| 12:00 | 35.5 | |
| 11:00 | 35.2 | |
| 10:00 | 45.8 | |
| 09:00 | 15.3 | |
| 08:00 | 5.3 | |
| 07:00 | 2.1 | |
| 06:00 | 0.3 | |
| 05:00 | 0.2 | |
| 03:00 | 0.2 | |
| 02:00 | 1 | |
| 01:00 | 2.1 | |
| Thursday, 10/1 | ||
| 00:00 | 11.3 | |
| 23:00 | 5.4 | |
| 22:00 | 5.7 | |
| 21:00 | 2.6 | |
| 20:00 | 4 | |
| 19:00 | 5.1 | |
| 18:00 | 4.6 | |
| 17:00 | 2 | |
| 13:00 | 0.1 | |
| 12:00 | 20.5 | |
| 11:00 | 40.3 | |
| 10:00 | 47 | |
| 09:00 | 25.7 | |
| 08:00 | 7 | |
| 07:00 | 0.8 | |
| 06:00 | 0.1 | |
| 02:00 | 0.2 | |
| 01:00 | 1.2 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 25.6 | provisional |
| Mon, 10/5 | 19.4 | provisional |
| Sun, 10/4 | 10.1 | provisional |
| Sat, 10/3 | 7.2 | provisional |
| Fri, 10/2 | 11.5 | provisional |
| Thu, 10/1 | 10.2 | provisional |
| Wed, 9/30 | 10.6 | provisional |
| Tue, 9/29 | 12 | provisional |
| Mon, 9/28 | 11.9 | provisional |
| Sun, 9/27 | 5.6 | provisional |
| Sat, 9/26 | 12.6 | provisional |
| Fri, 9/25 | 10.9 | provisional |
| Thu, 9/24 | 13.2 | provisional |
| Wed, 9/23 | 13.4 | provisional |
| Tue, 9/22 | too few readings | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | no data from the station | |
| Tue, 9/8 | no data from the station | |
| Mon, 9/7 | no data from the station |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 14.3 | 19.4 | measured in 94 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 12.7 | measured in 28 % of hours · provisional · 20 days without data from the station |
| August 2026 | 11.3 | 11.8 | measured in 86 % of hours · provisional |
| July 2026 | 12 | 13.4 | measured in 83 % of hours · provisional |
| June 2026 | 12.7 | 11.7 | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 14.3 | 12.2 | measured in 94 % of hours · provisional |
| April 2026 | too few readings | 18.4 | measured in 65 % of hours · provisional · 4 days without data from the station |
| March 2026 | 14.8 | too few readings | measured in 100 % of hours · provisional |
| February 2026 | 14.9 | 34.3 | measured in 81 % of hours · provisional |
| January 2026 | 48.1 | 37.2 | measured in 87 % of hours · provisional · 2 days without data from the station |
| December 2025 | 33.3 | 42.5 | measured in 92 % of hours · verified |
| November 2025 | 29.6 | 38.5 | measured in 100 % of hours · verified |
NO₂ by year
Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days above 85 µg/m³ (none allowed) | ≥ 3 above the number allowed | 3 above the number allowed | ≥ 6 above the number allowed |
| Hours above 200 µg/m³ (allowed 18) | 0² | 0 | 0² |
| Hours above 400 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (legal limit 40) | too few | 21.4 | too few |
| Highest daily average, µg/m³ | 111January 23 | 105January 1 | 106December 31 |
| Highest hourly value, µg/m³ | 188January 9 | 190January 2 | 173November 26 |
| Hours measured | 80 % | 97 % | 73 % |
| Days without any reading from the station | 27 | 0 | 8 |
* 2026 up to October 6; the average since the start of the year is not yet an annual average.
The monitoring networks have not yet finally verified this year’s data. The EEA publishes verified values once a year.
≥ means at least: more than a tenth of the days or hours are missing, so the real number may be higher.
² Too few readings to compare with the number allowed: the figure covers only what was measured.
■ and a figure in red: more than is allowed for the whole year.
There is no allowed number for the warning and alert thresholds: every such hour or day is in red.
The column for 2023 is shown on wider screens.
Compared with the new EU rules and the WHO recommendation
This is not the yardstick for the verdict above, only a comparison. From 2030 the EU tightens its limits (Directive (EU) 2024/2881), and since 2021 the World Health Organization has recommended even lower values.
- EU from 2030: daily 50 µg/m³, 18 days allowed. In 2025 there were 17 such days.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2025 there were 110 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 21 µg/m³.
- WHO 2021: annual average 10 µg/m³. Average in 2025: 21 µg/m³.
Sources: Directive (EU) 2024/2881, Annex I; WHO global air quality guidelines 2021, table 0.1. Checked against the texts on 7 October 2026.
The worst days of 2025
| Day | Average | Times the limit |
|---|---|---|
| Jan 1, 2025 | 105 | 1.2 × |
| Jan 21, 2025 | 96 | 1.1 × |
| Jan 2, 2025 | 94 | 1.1 × |
Daily average in µg/m³, daily limit 85 µg/m³. Days with the same unverified value over many hours are not on this list.
Ozone O₃
96
Nowµg/m³
Measured at 21:00
84.8
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
80.9
Last 7 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 30 days
measured in 48 % of hours · provisional
too few readings
Last 12 months
measured in 77 % of hours · 3 months with too few readings · provisional
Days in 2025: O₃, 8-hour average above 120 µg/m³
74 days above the limit.
- above the limit
- below the limit
Days above the limit with values (74)
- Mar 9 121
- Mar 10 122
- Mar 14 123
- Apr 13 124
- Apr 14 127
- Apr 15 137
- Apr 18 135
- Apr 29 125
- Apr 30 131
- May 1 152
- May 2 147
- May 3 131
- May 4 137
- May 5 128
- May 11 122
- May 13 128
- May 14 127
- May 15 129
- May 16 125
- May 19 121
- Jun 5 130
- Jun 6 132
- Jun 7 128
- Jun 8 123
- Jun 10 142
- Jun 11 161
- Jun 12 158
- Jun 13 161
- Jun 14 161
- Jun 15 158
- Jun 16 157
- Jun 17 155
- Jun 19 140
- Jun 20 137
- Jun 21 137
- Jun 22 147
- Jun 23 141
- Jun 24 159
- Jun 25 140
- Jun 26 143
- Jun 30 125
- Jul 1 128
- Jul 2 141
- Jul 3 140
- Jul 4 185
- Jul 5 174
- Jul 6 146
- Jul 7 138
- Jul 13 131
- Jul 14 125
- Jul 15 130
- Jul 16 129
- Jul 17 122
- Jul 21 124
- Jul 22 146
- Jul 23 133
- Jul 24 127
- Jul 25 125
- Jul 27 128
- Aug 1 123
- Aug 2 126
- Aug 8 131
- Aug 9 142
- Aug 10 135
- Aug 11 143
- Aug 12 143
- Aug 13 152
- Aug 14 142
- Aug 15 131
- Aug 16 125
- Aug 17 127
- Aug 19 124
- Aug 21 131
- Aug 29 130
Values in µg/m³, limit 120 µg/m³.
Months of 2025
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 105 | 0 |
| February | 0 | 109 | 0 |
| March | 3 above the number allowed | 123 | 0 |
| April | 6 above the number allowed | 137 | 0 |
| May | 11 above the number allowed | 152 | 0 |
| June | 21 above the number allowed | 161 | 0 |
| July | 18 above the number allowed | 185 | 0 |
| August | 15 above the number allowed | 152 | 0 |
| September | 0 | 114 | 0 |
| October | 0 | 105 | 0 |
| November | 0 | 102 | 0 |
| December | 0 | 80 | 0 |
Values in µg/m³. ■ marks a month with at least one day above the limit; the number allowed applies to the whole year. “No readings”: days on which not a single reading came from the station.
Values as a table
| Hour to | µg/m³ | Note |
|---|---|---|
| Wednesday, 10/7 | ||
| 22:00 | 44 | model estimate, not counted |
| 21:00 | 96 | |
| 20:00 | 105.6 | |
| 19:00 | 80.3 | |
| 18:00 | 98.4 | |
| 17:00 | 102 | |
| 16:00 | 120 | |
| 15:00 | 120.5 | |
| 14:00 | 115.6 | |
| 13:00 | 74.8 | |
| 12:00 | 61.9 | |
| 11:00 | 40.4 | |
| 10:00 | 46.6 | |
| 09:00 | 61.2 | |
| 08:00 | 64.4 | |
| 07:00 | 76.4 | |
| 06:00 | 80.7 | |
| 05:00 | 82.8 | |
| 04:00 | 86.5 | |
| 03:00 | 88.7 | |
| 02:00 | 88 | |
| 01:00 | 85.5 | |
| Tuesday, 10/6 | ||
| 00:00 | 89.2 | |
| 23:00 | 87.2 | |
| 22:00 | 90.9 | |
| 21:00 | 86.8 | |
| 20:00 | 76 | |
| 19:00 | 65.8 | |
| 18:00 | 86.8 | |
| 17:00 | 104.3 | |
| 16:00 | 110.4 | |
| 15:00 | 95.7 | |
| 14:00 | 71.7 | |
| 13:00 | 66.6 | |
| 12:00 | 58.1 | |
| 11:00 | 37.2 | |
| 10:00 | 44.4 | |
| 09:00 | 53.4 | |
| 08:00 | 62.7 | |
| 07:00 | 71.2 | |
| 06:00 | 79 | |
| 05:00 | 79.6 | |
| 04:00 | 82.9 | |
| 03:00 | 83.8 | |
| 02:00 | 78.6 | |
| 01:00 | 73.2 | |
| Monday, 10/5 | ||
| 00:00 | 73.3 | |
| 23:00 | 88.6 | |
| 22:00 | 90.1 | |
| 21:00 | 87 | |
| 20:00 | 83 | |
| 19:00 | 80.4 | |
| 18:00 | 89.4 | |
| 17:00 | 103.6 | |
| 16:00 | 114.3 | |
| 15:00 | 89 | |
| 14:00 | 73.9 | |
| 13:00 | 63.3 | |
| 12:00 | 59 | |
| 11:00 | 54.1 | |
| 10:00 | 31.9 | |
| 09:00 | 51.2 | |
| 08:00 | 57.4 | |
| 07:00 | 67.3 | |
| 06:00 | 71.2 | |
| 05:00 | 71.4 | |
| 04:00 | 73.4 | |
| 03:00 | 76.3 | |
| 02:00 | 72.1 | |
| 01:00 | 75.7 | |
| Sunday, 10/4 | ||
| 00:00 | 82.1 | |
| 23:00 | 83.3 | |
| 22:00 | 84 | |
| 21:00 | 91.5 | |
| 20:00 | 90.7 | |
| 19:00 | 89.5 | |
| 18:00 | 96.5 | |
| 17:00 | 107.1 | |
| 16:00 | 114.3 | |
| 15:00 | 114.3 | |
| 14:00 | 101 | |
| 13:00 | 91.8 | |
| 12:00 | 87.5 | |
| 11:00 | 76.2 | |
| 10:00 | 47.7 | |
| 09:00 | 60.3 | |
| 08:00 | 63.8 | |
| 07:00 | 69.8 | |
| 06:00 | 75.2 | |
| 05:00 | 77.2 | |
| 04:00 | 74.1 | |
| 03:00 | 80.2 | |
| 02:00 | 80.7 | |
| 01:00 | 82.8 | |
| Saturday, 10/3 | ||
| 00:00 | 85.3 | |
| 23:00 | 87.2 | |
| 22:00 | 89 | |
| 21:00 | 94.1 | |
| 20:00 | 92.8 | |
| 19:00 | 100.6 | |
| 18:00 | 107.5 | |
| 17:00 | 110.8 | |
| 16:00 | 112.4 | |
| 15:00 | 114.7 | |
| 14:00 | 113.1 | |
| 13:00 | 106.3 | |
| 12:00 | 83.6 | |
| 11:00 | 57.5 | |
| 10:00 | 48.6 | |
| 09:00 | 58.5 | |
| 08:00 | 63.9 | |
| 07:00 | 70.3 | |
| 06:00 | 73.2 | |
| 05:00 | 72.7 | |
| 04:00 | 82.9 | |
| 03:00 | 88.7 | |
| 02:00 | 93.5 | |
| 01:00 | 93.3 | |
| Friday, 10/2 | ||
| 00:00 | 89.5 | |
| 23:00 | 91.9 | |
| 22:00 | 95.1 | |
| 21:00 | 99.5 | |
| 20:00 | 111.1 | |
| 19:00 | 111.4 | |
| 18:00 | 112.4 | |
| 17:00 | 103.1 | |
| 16:00 | 115 | |
| 15:00 | 106.3 | |
| 14:00 | 87.6 | |
| 13:00 | 68.6 | |
| 12:00 | 62.7 | |
| 11:00 | 52.6 | |
| 10:00 | 32.3 | |
| 09:00 | 52.4 | |
| 08:00 | 68.2 | |
| 07:00 | 69.7 | |
| 06:00 | 74.6 | |
| 05:00 | 76.4 | |
| 04:00 | 80.9 | |
| 03:00 | 83.4 | |
| 02:00 | 85.7 | |
| 01:00 | 95.7 | |
| Thursday, 10/1 | ||
| 00:00 | 80.3 | |
| 23:00 | 83.2 | |
| 22:00 | 88.7 | |
| 21:00 | 96.8 | |
| 20:00 | 92.5 | |
| 19:00 | 92.4 | |
| 18:00 | 99.8 | |
| 17:00 | 103.8 | |
| 16:00 | 106.2 | |
| 15:00 | 106.4 | |
| 14:00 | 106.8 | |
| 13:00 | 101.8 | |
| 12:00 | 75.5 | |
| 11:00 | 43.7 | |
| 10:00 | 27.1 | |
| 09:00 | 37.6 | |
| 08:00 | 54.5 | |
| 07:00 | 62.6 | |
| 06:00 | 65.6 | |
| 05:00 | 67.7 | |
| 04:00 | 76.8 | |
| 03:00 | 82.9 | |
| 02:00 | 83.8 | |
| 01:00 | 86 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 89.6 | provisional |
| Mon, 10/5 | 92.1 | provisional |
| Sun, 10/4 | 100.6 | provisional |
| Sat, 10/3 | 107.3 | provisional |
| Fri, 10/2 | 106.7 | provisional |
| Thu, 10/1 | 102.3 | provisional |
| Wed, 9/30 | 107.3 | provisional |
| Tue, 9/29 | 102.3 | provisional |
| Mon, 9/28 | 113.3 | provisional |
| Sun, 9/27 | 96.1 | provisional |
| Sat, 9/26 | 74 | provisional |
| Fri, 9/25 | 73.7 | provisional |
| Thu, 9/24 | 84.6 | provisional |
| Wed, 9/23 | 62.4 | provisional |
| Tue, 9/22 | too few readings | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | no data from the station | |
| Tue, 9/8 | no data from the station | |
| Mon, 9/7 | no data from the station |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 81.3 | 53 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 61.3 | measured in 30 % of hours · provisional · 20 days without data from the station |
| August 2026 | too few readings | 88.9 | measured in 2 % of hours · provisional |
| July 2026 | too few readings | 91.6 | measured in 37 % of hours · provisional |
| June 2026 | 72.6 | 102.3 | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 80.8 | 87.5 | measured in 94 % of hours · provisional |
| April 2026 | 88.1 | 78.3 | measured in 79 % of hours · provisional · 4 days without data from the station |
| March 2026 | 85.7 | 77.8 | measured in 100 % of hours · provisional |
| February 2026 | 68.3 | 46.4 | measured in 100 % of hours · provisional |
| January 2026 | 50.2 | 47.2 | measured in 88 % of hours · provisional · 2 days without data from the station |
| December 2025 | 25 | 25.5 | measured in 100 % of hours · verified |
| November 2025 | 39.1 | too few readings | measured in 100 % of hours · verified |
O₃ by year
Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days with 8-hour average above 120 µg/m³ (target value 25) | ≥ 29 | 74 | ≥ 201 |
| Annual average, µg/m³ | too few | 66.3 | too few |
| Highest 8-hour average, µg/m³ | 150April 18 | 185July 4 | 216July 15 |
| Hours measured | 69 % | 100 % | 83 % |
| Days without any reading from the station | 27 | 0 | 8 |
* 2026 up to October 6; the average since the start of the year is not yet an annual average.
The monitoring networks have not yet finally verified this year’s data. The EEA publishes verified values once a year.
≥ means at least: more than a tenth of the days or hours are missing, so the real number may be higher.
■ and a figure in red: more than is allowed for the whole year.
The column for 2023 is shown on wider screens.
The worst days of 2025
| Day | Highest 8 h | Times the limit |
|---|---|---|
| Jul 4, 2025 | 185 | 1.5 × |
| Jul 5, 2025 | 174 | 1.4 × |
| Jun 11, 2025 | 161 | 1.3 × |
| Jun 13, 2025 | 161 | 1.3 × |
| Jun 14, 2025 | 161 | 1.3 × |
Daily average in µg/m³, daily limit 120 µg/m³. Days with the same unverified value over many hours are not on this list.
Sulphur dioxide SO₂
10.7
Nowµg/m³
Measured at 21:00
11.9
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
7.3
Last 7 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 30 days
measured in 48 % of hours · provisional
too few readings
Last 12 months
measured in 88 % of hours · 1 month with too few readings · provisional
Days in 2025: SO₂, daily average above 125 µg/m³
3 days above the limit.
- above the limit
- below the limit
- too few readings for the day
Days above the limit with values (3)
- Jan 16 150
- Feb 11 141
- Oct 17 149
Values in µg/m³, limit 125 µg/m³.
Months of 2025
| Month | Days above 125 | Hours above 350 | Highest day | No readings |
|---|---|---|---|---|
| January | 1 above the number allowed | 2 | 150 | 0 |
| February | 1 above the number allowed | 2 | 141 | 0 |
| March | 0 | 0 | 36 | 0 |
| April | 0 | 0 | 57 | 0 |
| May | 0 | 1 | 80 | 0 |
| June | 0 | 0 | 40 | 0 |
| July | 0 | 0 | 56 | 0 |
| August | 0 | 1 | 86 | 0 |
| September | 0 | 0 | 35 | 0 |
| October | 1 above the number allowed | 1 | 149 | 0 |
| November | 0 | 0 | 71 | 0 |
| December | 0 | 2 | 98 | 0 |
Values in µg/m³. ■ marks a month with at least one day above the limit; the number allowed applies to the whole year. “No readings”: days on which not a single reading came from the station.
Values as a table
| Hour to | µg/m³ | Note |
|---|---|---|
| Wednesday, 10/7 | ||
| 21:00 | 10.7 | |
| 20:00 | 11.1 | |
| 19:00 | 10.8 | |
| 18:00 | 10.4 | |
| 17:00 | 9.9 | |
| 16:00 | 11.1 | |
| 15:00 | 13.8 | |
| 14:00 | 14.5 | |
| 13:00 | 19.1 | |
| 12:00 | 19.9 | |
| 11:00 | 14.6 | |
| 10:00 | 12 | |
| 09:00 | 11.4 | |
| 08:00 | 10.1 | |
| 07:00 | 9.8 | |
| 06:00 | 9.9 | |
| 05:00 | 10.4 | |
| 04:00 | 11 | |
| 03:00 | 10.8 | |
| 02:00 | 9.9 | |
| 01:00 | 10.1 | |
| Tuesday, 10/6 | ||
| 00:00 | 10.9 | |
| 23:00 | 11.9 | |
| 22:00 | 13 | |
| 21:00 | 15.7 | |
| 20:00 | 16.7 | |
| 19:00 | 16.6 | |
| 18:00 | 19 | |
| 17:00 | 14.9 | |
| 16:00 | 10 | |
| 15:00 | 10.5 | |
| 14:00 | 11.2 | |
| 13:00 | 10.5 | |
| 12:00 | 9.9 | |
| 11:00 | 10.3 | |
| 10:00 | 8.8 | |
| 09:00 | 7.5 | |
| 08:00 | 7.1 | |
| 07:00 | 7 | |
| 06:00 | 7.2 | |
| 05:00 | 7.4 | |
| 04:00 | 7.5 | |
| 03:00 | 7.6 | |
| 02:00 | 7.7 | |
| 01:00 | 7.6 | |
| Monday, 10/5 | ||
| 00:00 | 8.3 | |
| 23:00 | 9.4 | |
| 22:00 | 9.6 | |
| 21:00 | 11.3 | |
| 20:00 | 9.1 | |
| 19:00 | 8.9 | |
| 18:00 | 9.3 | |
| 17:00 | 8.8 | |
| 16:00 | 9.2 | |
| 15:00 | 10.1 | |
| 14:00 | 10.7 | |
| 13:00 | 9.9 | |
| 12:00 | 9 | |
| 11:00 | 9.4 | |
| 10:00 | 9.3 | |
| 09:00 | 7.2 | |
| 08:00 | 7 | |
| 07:00 | 6.9 | |
| 06:00 | 6.9 | |
| 05:00 | 7.1 | |
| 04:00 | 6.8 | |
| 03:00 | 7 | |
| 02:00 | 6.7 | |
| 01:00 | 7.3 | |
| Sunday, 10/4 | ||
| 00:00 | 7.3 | |
| 23:00 | 7.6 | |
| 22:00 | 7.9 | |
| 21:00 | 8.3 | |
| 20:00 | 8.9 | |
| 19:00 | 8.7 | |
| 18:00 | 18 | |
| 17:00 | 9.3 | |
| 16:00 | 7.7 | |
| 15:00 | 7.5 | |
| 14:00 | 7.8 | |
| 13:00 | 7.7 | |
| 12:00 | 7.5 | |
| 11:00 | 7.3 | |
| 10:00 | 7.9 | |
| 09:00 | 7.2 | |
| 08:00 | 7 | |
| 07:00 | 6.5 | |
| 06:00 | 6.5 | |
| 05:00 | 6.3 | |
| 04:00 | 6.2 | |
| 03:00 | 6.4 | |
| 02:00 | 6.6 | |
| 01:00 | 6.8 | |
| Saturday, 10/3 | ||
| 00:00 | 6.9 | |
| 23:00 | 6.9 | |
| 22:00 | 6.5 | |
| 21:00 | 6.9 | |
| 20:00 | 6.7 | |
| 19:00 | 6.3 | |
| 18:00 | 6.2 | |
| 17:00 | 6.3 | |
| 16:00 | 6.2 | |
| 15:00 | 6.3 | |
| 14:00 | 6.2 | |
| 13:00 | 6.6 | |
| 12:00 | 7.4 | |
| 11:00 | 7.3 | |
| 10:00 | 7.4 | |
| 09:00 | 7 | |
| 08:00 | 6.3 | |
| 07:00 | 6 | |
| 06:00 | 6.2 | |
| 05:00 | 6 | |
| 04:00 | 6.1 | |
| 03:00 | 6.4 | |
| 02:00 | 6.3 | |
| 01:00 | 6.3 | |
| Friday, 10/2 | ||
| 00:00 | 6.1 | |
| 23:00 | 6 | |
| 22:00 | 5.8 | |
| 21:00 | 5.8 | |
| 20:00 | 5.7 | |
| 19:00 | 5.2 | |
| 18:00 | 5.8 | |
| 17:00 | 6.6 | |
| 16:00 | 5.8 | |
| 15:00 | 5.8 | |
| 14:00 | 6.4 | |
| 13:00 | 6.8 | |
| 12:00 | 7.1 | |
| 11:00 | 7.2 | |
| 10:00 | 8.1 | |
| 09:00 | 6.2 | |
| 08:00 | 5.8 | |
| 07:00 | 5.5 | |
| 06:00 | 5.6 | |
| 05:00 | 5.9 | |
| 04:00 | 5.7 | |
| 03:00 | 5.8 | |
| 02:00 | 6 | |
| 01:00 | 6.1 | |
| Thursday, 10/1 | ||
| 00:00 | 6 | |
| 23:00 | 5.8 | |
| 22:00 | 6.1 | |
| 21:00 | 6 | |
| 20:00 | 5.7 | |
| 19:00 | 5.2 | |
| 18:00 | 5.2 | |
| 17:00 | 5.3 | |
| 16:00 | 5 | |
| 15:00 | 5.3 | |
| 14:00 | 5.5 | |
| 13:00 | 5.5 | |
| 12:00 | 6.3 | |
| 11:00 | 7 | |
| 10:00 | 7.8 | |
| 09:00 | 6.6 | |
| 08:00 | 5.7 | |
| 07:00 | 5.3 | |
| 06:00 | 5.3 | |
| 05:00 | 5.6 | |
| 04:00 | 5.5 | |
| 03:00 | 5.7 | |
| 02:00 | 5.8 | |
| 01:00 | 5.7 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 10.7 | provisional |
| Mon, 10/5 | 8.5 | provisional |
| Sun, 10/4 | 7.9 | provisional |
| Sat, 10/3 | 6.5 | provisional |
| Fri, 10/2 | 6.1 | provisional |
| Thu, 10/1 | 5.8 | provisional |
| Wed, 9/30 | 5.6 | provisional |
| Tue, 9/29 | 10.3 | provisional |
| Mon, 9/28 | 7.3 | provisional |
| Sun, 9/27 | 4.8 | provisional |
| Sat, 9/26 | 6.1 | provisional |
| Fri, 9/25 | 5.8 | provisional |
| Thu, 9/24 | 7.1 | provisional |
| Wed, 9/23 | 36.9 | provisional |
| Tue, 9/22 | too few readings | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | no data from the station | |
| Tue, 9/8 | no data from the station | |
| Mon, 9/7 | no data from the station |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 7.6 | 39.5 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 21.6 | measured in 30 % of hours · provisional · 20 days without data from the station |
| August 2026 | 23.5 | 25.1 | measured in 96 % of hours · provisional |
| July 2026 | 31.5 | 19.8 | measured in 89 % of hours · provisional |
| June 2026 | 47.1 | 14.8 | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 27.1 | 39.2 | measured in 94 % of hours · provisional |
| April 2026 | 34.6 | 35.8 | measured in 79 % of hours · provisional · 4 days without data from the station |
| March 2026 | 41.2 | 29.7 | measured in 100 % of hours · provisional |
| February 2026 | 30.6 | 50.6 | measured in 100 % of hours · provisional |
| January 2026 | 55.7 | 38.3 | measured in 82 % of hours · provisional · 2 days without data from the station |
| December 2025 | 36.4 | 29.2 | measured in 100 % of hours · verified |
| November 2025 | 19.8 | 31.8 | measured in 100 % of hours · verified |
SO₂ by year
Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days above 125 µg/m³ (allowed 3) | ≥ 2² | 3 | 0 |
| Hours above 350 µg/m³ (allowed 24) | ≥ 14² | 9 | 2 |
| Hours above 500 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (legal limit 50) | too few | 30.7 | 17.4 |
| Highest daily average, µg/m³ | 152March 30 | 150January 16 | 112December 28 |
| Highest hourly value, µg/m³ | 739June 22 | 942January 16 | 685November 2 |
| Hours measured | 85 % | 100 % | 92 % |
| Days without any reading from the station | 27 | 0 | 8 |
* 2026 up to October 6; the average since the start of the year is not yet an annual average.
The monitoring networks have not yet finally verified this year’s data. The EEA publishes verified values once a year.
≥ means at least: more than a tenth of the days or hours are missing, so the real number may be higher.
² Too few readings to compare with the number allowed: the figure covers only what was measured.
■ and a figure in red: more than is allowed for the whole year.
There is no allowed number for the warning and alert thresholds: every such hour or day is in red.
The column for 2023 is shown on wider screens.
Compared with the new EU rules and the WHO recommendation
This is not the yardstick for the verdict above, only a comparison. From 2030 the EU tightens its limits (Directive (EU) 2024/2881), and since 2021 the World Health Organization has recommended even lower values.
- EU from 2030: daily 50 µg/m³, 18 days allowed. In 2025 there were 45 such days.
- WHO 2021: daily 40 µg/m³, at most three to four days a year. In 2025 there were 78 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 31 µg/m³.
Sources: Directive (EU) 2024/2881, Annex I; WHO global air quality guidelines 2021, table 0.1. Checked against the texts on 7 October 2026.
The worst days of 2025
| Day | Average | Times the limit |
|---|---|---|
| Jan 16, 2025 | 150 | 1.2 × |
| Oct 17, 2025 | 149 | 1.2 × |
| Feb 11, 2025 | 141 | 1.1 × |
Daily average in µg/m³, daily limit 125 µg/m³. Days with the same unverified value over many hours are not on this list.
Outages in the last 12 months
Every period of at least 24 hours in which no reading arrived from this station.
Days without a reading: 36
8 outages, 853 hours in total in the last 12 months.
Timeline of outages from October 7, 2025 to today
| From | To | Duration |
|---|---|---|
| Sep 1, 2026 09:00 | Sep 22, 2026 09:00 | 21 days |
| Jul 1, 2026 09:00 | Jul 2, 2026 09:00 | 24 hours |
| Jun 9, 2026 05:00 | Jun 11, 2026 11:00 | 2 days |
| May 23, 2026 01:00 | May 24, 2026 08:00 | 31 hours |
| Apr 10, 2026 04:00 | Apr 13, 2026 11:00 | 3 days |
| Apr 4, 2026 12:00 | Apr 7, 2026 09:00 | 3 days |
| Jan 26, 2026 15:00 | Jan 28, 2026 14:00 | 47 hours |
| Jan 9, 2026 14:00 | Jan 11, 2026 11:00 | 45 hours |
Calculated from the hourly values the EEA publishes. If late values arrive afterwards, an outage gets shorter or disappears.
Who is responsible
Air quality in the Federation of BiH is monitored by three networks of stations: the federal, the cantonal and the municipal one (Air Protection Act, Official Gazette FBiH 72/24, Art. 12 to 16).
- Federal Hydrometeorological Institute (FHMZ)
- Runs the federal network, collects the data of all networks and publishes it. It issues a report every month and, every year by 31 July, the annual air quality report (Art. 14, 19 and 63).
- Canton
- Sets up the cantonal network and is responsible for the measures. When limit values are exceeded, it adopts an air quality plan. When warning or alert thresholds are at risk of being exceeded, it adopts a short-term intervention plan. When the information threshold or a concentration dangerous to health is exceeded, it informs the public (Art. 15, 22, 25, 27 and 61).
- Municipality
- May run its own stations with the consent of the canton and must publish their results (Art. 16 and 17).
- Inspectorates
- The inspectorates of the Federation, the canton and the municipality supervise the law and the measures, each within its remit (Art. 71).
What the law requires when a limit is exceeded
A limit value is not a recommendation. The deadline for meeting the limit values for sulphur dioxide, nitrogen dioxide and particulate matter expired on 1 January 2021. Since then only the number of exceedances that the Pravilnik allows applies (Official Gazette FBiH 1/12, Annex X). The Air Protection Act adds that limit values, once met, must not be exceeded again (Art. 5(4)).
The law allows: for PM10 at most 35 days a year above 50 µg/m³, for sulphur dioxide at most 24 hours above 350 µg/m³ and at most 3 days above 125 µg/m³, for nitrogen dioxide at most 18 hours above 200 µg/m³ and no day with a daily average above 85 µg/m³ (Annex X).
When limits are exceeded, the canton adopts an air quality plan with measures that shorten the period of exceedance. The plan is published within eight days of adoption (Art. 8, 25, 26 and 63).
The alert thresholds are 500 µg/m³ for sulphur dioxide and 400 µg/m³ for nitrogen dioxide over three hours in a row, and 300 µg/m³ for PM10 and 280 µg/m³ for PM2.5 as a daily average (Pravilnik, Annex XIV, amended in Official Gazette FBiH 3/21). When such a situation threatens, the canton must have a short-term intervention plan. It can restrict traffic, construction work, the operation of plants and heating (Art. 27 and 28).
When the information threshold or a concentration dangerous to health is exceeded, the competent cantonal authorities inform the public through radio, television, newspapers and the internet: where, since when, how much was measured, what is expected and how to protect oneself (Art. 61 and 62).
The limit values in BiH match the EU rules of 2008. Since 2021 the World Health Organization has recommended much lower values, for PM10 45 µg/m³ a day and 15 µg/m³ a year. From 2030 the EU lowers the annual PM10 limit to 20 µg/m³ (Directive (EU) 2024/2881).
We checked the rules against the published texts on 7 October 2026.
Where the data comes from
Measured by Federal Hydrometeorological Institute. We take the values from the European Environment Agency (EEA) under the CC BY 4.0 licence.
Values marked provisional have not been fully checked by the network yet. The EEA publishes verified data for the previous year once a year, usually by the end of September.
An hourly value is the average of one hour. We show the end of the hour: the value to 18:00 was measured from 17:00 to 18:00.
A day runs from midnight to midnight local time.
We only show an average when at least three out of four hours in the period have a reading. The EU air quality directive requires this for daily averages, and we apply the same rule to longer periods. We compare an annual average with the EU limit only once 90 % of hours are measured, as the directive requires. For 12 months and for a year we ask for more: if less than 90 % of hours are measured, every full calendar month needs readings for at least half of its hours. Otherwise a whole season could be missing from the average, such as summer, when ozone is highest.
We do not call a difference of up to 10 % a change, nor one of up to 1 µg/m³ at low levels, because weather and measurement uncertainty alone cause differences that size.
When a station sends no reading, the EEA sometimes fills the hour with a model estimate. We draw those hours dashed and leave them out of every average.
The limits are the legal limits of the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19 and 3/21, Annexes X and XIV). They match EU Directive 2008/50/EC. When more than a tenth of the days or hours are missing, the number of exceedances can only be higher, so we write “at least” in front of it.
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