Air at the Sarajevo - Otoka station
Novi Grad, Sarajevo Canton, Sarajevo Canton · Federation of Bosnia and Herzegovina
Network: Federal Hydrometeorological Institute · Station code: BA0042A
This year, up to yesterday (October 6)
at least
11 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 11 days more than allowed
at least
54 hours
with nitrogen dioxide (NO₂) above the legal hourly limit of 200 µg/m³.
18 hours are allowed in the whole year.
The number allowed for the whole year has been exceeded.at least 36 hours more than allowed
Worst day: January 15, 2026, NO₂ 206 µg/m³ as a daily average, 2.4 times the limit.
At least 1 day with a daily average of PM10 above 300 µg/m³, the alert 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 40 days above the legal daily limit for PM10 of 50 µg/m³ (35 allowed).
Also: at least 1 day with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.
Daily average for 217 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)
Poor
Air now · Measured at 21:00
Latest values
Latest value: 21:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 33.2 µg/m³ | Fair |
| NO₂ | 79.6 µg/m³ | Poor |
| O₃ | 40.2 µg/m³ | Good |
| SO₂ | 5.4 µg/m³ | Good |
How the air is changing
Over the last seven days there was more PM10, PM2.5, NO₂, and O₃ and less SO₂ in the air than the week before.
- PM10: average 26.7 µg/m³, week before 19.6 µg/m³
- PM2.5: average 17.7 µg/m³, week before 14.3 µg/m³
- NO₂: average 47.8 µg/m³, week before 35.2 µg/m³
- O₃: average 31.2 µg/m³, week before 28.4 µg/m³
- SO₂: average 4.6 µg/m³, week before 7.9 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
33.2
Nowµg/m³
Measured at 21:00
42.9
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
26.7
Last 7 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 30 days
measured in 49 % of hours · provisional
too few readings
Last 12 months
measured in 90 % of hours · 1 month with too few readings · provisional
Days in 2024: PM10, daily average above 50 µg/m³
92 days above the limit. 7 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Days above the limit with values (92)
- Jan 13 64
- Jan 14 184
- Jan 15 210
- Jan 17 61
- Jan 21 127
- Jan 22 200
- Jan 23 265
- Jan 24 200
- Jan 25 215
- Jan 26 160
- Jan 27 116
- Jan 29 105
- Jan 30 134
- Jan 31 158
- Feb 1 188
- Feb 2 145
- Feb 3 143
- Feb 4 155
- Feb 5 164
- Feb 6 113
- Feb 7 91
- Feb 8 99
- Feb 15 93
- Feb 16 107
- Feb 17 90
- Feb 18 63
- Feb 19 51
- Feb 22 50
- Feb 26 74
- Feb 28 56
- Feb 29 63
- Mar 22 50
- Mar 27 111
- Apr 1 78
- May 21 69
- Jun 20 83
- Jun 21 99
- Jun 22 102
- Jun 23 65
- Jul 17 55
- Sep 8 54
- Oct 17 62
- Oct 18 53
- Oct 19 57
- Oct 21 57
- Oct 22 74
- Oct 23 84
- Oct 24 83
- Oct 25 70
- Oct 26 61
- Oct 27 64
- Oct 28 64
- Oct 29 70
- Oct 30 66
- Oct 31 67
- Nov 1 74
- Nov 2 85
- Nov 3 64
- Nov 4 69
- Nov 5 97
- Nov 6 125
- Nov 7 133
- Nov 8 99
- Nov 9 73
- Nov 10 58
- Nov 11 61
- Nov 12 52
- Nov 13 55
- Nov 14 52
- Nov 17 134
- Nov 18 202
- Nov 19 140
- Nov 23 72
- Nov 24 147
- Nov 25 244
- Nov 26 226
- Nov 27 238
- Nov 28 203
- Dec 6 67
- Dec 8 52
- Dec 9 52
- Dec 14 56
- Dec 16 128
- Dec 17 256
- Dec 18 248
- Dec 19 236
- Dec 22 82
- Dec 27 104
- Dec 28 115
- Dec 29 84
- Dec 30 119
- Dec 31 137
Values in µg/m³, limit 50 µg/m³.
Months of 2024
| Month | Days above 50 | Highest day | No readings |
|---|---|---|---|
| January | 14 above the number allowed | 265 | 7 |
| February | 17 above the number allowed | 188 | 0 |
| March | 2 above the number allowed | 111 | 0 |
| April | 1 above the number allowed | 78 | 0 |
| May | 1 above the number allowed | 69 | 0 |
| June | 4 above the number allowed | 102 | 0 |
| July | 1 above the number allowed | 55 | 0 |
| August | 0 | 46 | 0 |
| September | 1 above the number allowed | 54 | 0 |
| October | 14 above the number allowed | 84 | 0 |
| November | 23 above the number allowed | 244 | 0 |
| December | 14 above the number allowed | 256 | 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 | 52 | model estimate, not counted |
| 21:00 | 33.2 | |
| 20:00 | 58 | |
| 19:00 | 42.3 | |
| 18:00 | 16.8 | |
| 17:00 | 12.5 | |
| 16:00 | 14 | |
| 15:00 | 16.8 | |
| 14:00 | 22.8 | |
| 13:00 | 42.9 | |
| 12:00 | 40 | |
| 11:00 | 53.6 | |
| 10:00 | 63.1 | |
| 09:00 | 57 | |
| 08:00 | 50.9 | |
| 07:00 | 46.8 | |
| 06:00 | 46.9 | |
| 05:00 | 49.4 | |
| 04:00 | 55 | |
| 03:00 | 61.7 | |
| 02:00 | 59 | |
| 01:00 | 49.4 | |
| Tuesday, 10/6 | ||
| 00:00 | 52.1 | |
| 23:00 | 51.4 | |
| 22:00 | 56.6 | |
| 21:00 | 67.4 | |
| 20:00 | 71.3 | |
| 19:00 | 47 | |
| 18:00 | 22.1 | |
| 17:00 | 19.2 | |
| 16:00 | 21.4 | |
| 15:00 | 22.7 | |
| 14:00 | 32 | |
| 13:00 | 29.8 | |
| 12:00 | 30.4 | |
| 11:00 | 38.5 | |
| 10:00 | 33 | |
| 09:00 | 40 | |
| 08:00 | 32 | |
| 07:00 | 30.6 | |
| 06:00 | 31.7 | |
| 05:00 | 24.6 | |
| 04:00 | 31.6 | |
| 03:00 | 33.3 | |
| 02:00 | 30.5 | |
| 01:00 | 35 | |
| Monday, 10/5 | ||
| 00:00 | 37.8 | |
| 23:00 | 43.9 | |
| 22:00 | 54 | |
| 21:00 | 59.1 | |
| 20:00 | 81 | |
| 19:00 | 58.6 | |
| 18:00 | 32.5 | |
| 17:00 | 19.4 | |
| 16:00 | 18.7 | |
| 15:00 | 19.9 | |
| 14:00 | 22.2 | |
| 13:00 | 23.8 | |
| 12:00 | 24.4 | |
| 11:00 | 33.4 | |
| 10:00 | 30.7 | |
| 09:00 | 37.9 | |
| 08:00 | 35.8 | |
| 07:00 | 28 | |
| 06:00 | 24.6 | |
| 05:00 | 22 | |
| 04:00 | 28 | |
| 03:00 | 23.1 | |
| 02:00 | 26.1 | |
| 01:00 | 37.9 | |
| Sunday, 10/4 | ||
| 00:00 | 39.4 | |
| 23:00 | 37.7 | |
| 22:00 | 62 | |
| 21:00 | 58.7 | |
| 20:00 | 46.3 | |
| 19:00 | 30.8 | |
| 18:00 | 12.1 | |
| 17:00 | 11.5 | |
| 16:00 | 12.5 | |
| 15:00 | 15.5 | |
| 14:00 | 15.7 | |
| 13:00 | 15.6 | |
| 12:00 | 15.8 | |
| 11:00 | 21.6 | |
| 10:00 | 22.3 | |
| 09:00 | 24.5 | |
| 08:00 | 25.9 | |
| 07:00 | 26.5 | |
| 06:00 | 24 | |
| 05:00 | 20.5 | |
| 04:00 | 26.3 | |
| 03:00 | 29.2 | |
| 02:00 | 31 | |
| 01:00 | 36.3 | |
| Saturday, 10/3 | ||
| 00:00 | 40 | |
| 23:00 | 42.5 | |
| 22:00 | 42.3 | |
| 21:00 | 31.3 | |
| 20:00 | 27.8 | |
| 19:00 | 17.6 | |
| 18:00 | 9.6 | |
| 17:00 | 7.9 | |
| 16:00 | 9 | |
| 15:00 | 8.7 | |
| 14:00 | 9.2 | |
| 13:00 | 14.1 | |
| 12:00 | 22.7 | |
| 11:00 | 26.2 | |
| 10:00 | 28 | |
| 09:00 | 30.4 | |
| 08:00 | 24.1 | |
| 07:00 | 27.9 | |
| 06:00 | 25.6 | |
| 05:00 | 28.2 | |
| 04:00 | 24.1 | |
| 03:00 | 28.1 | |
| 02:00 | 29.4 | |
| 01:00 | 31.9 | |
| Friday, 10/2 | ||
| 00:00 | 32.5 | |
| 23:00 | 27.7 | |
| 22:00 | 22.3 | |
| 21:00 | 21 | |
| 20:00 | 15.2 | |
| 19:00 | 16.8 | |
| 18:00 | 15.1 | |
| 17:00 | 12.3 | |
| 16:00 | 10.6 | |
| 15:00 | 12.9 | |
| 14:00 | 17.3 | |
| 13:00 | 22.1 | |
| 12:00 | 22 | |
| 11:00 | 20.9 | |
| 10:00 | 23.6 | |
| 09:00 | 26.9 | |
| 08:00 | 33.4 | |
| 07:00 | 25.6 | |
| 06:00 | 22.3 | |
| 05:00 | 23.2 | |
| 04:00 | 26.4 | |
| 03:00 | 25 | |
| 02:00 | 24.3 | |
| 01:00 | 22.5 | |
| Thursday, 10/1 | ||
| 00:00 | 15.5 | |
| 23:00 | 16.7 | |
| 22:00 | 19.2 | |
| 21:00 | 18.8 | |
| 20:00 | 24.1 | |
| 19:00 | 14 | |
| 18:00 | 6.5 | |
| 17:00 | 8.1 | |
| 16:00 | 8.8 | |
| 15:00 | 8.7 | |
| 14:00 | 12.9 | |
| 13:00 | 17.5 | |
| 12:00 | 24.6 | |
| 11:00 | 29.3 | |
| 10:00 | 28.5 | |
| 09:00 | 26.4 | |
| 08:00 | 30.3 | |
| 07:00 | 26.8 | |
| 06:00 | 26.1 | |
| 05:00 | 23.4 | |
| 04:00 | 22.8 | |
| 03:00 | 23.4 | |
| 02:00 | 23.7 | |
| 01:00 | 20.1 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 36.8 | provisional |
| Mon, 10/5 | 34.3 | provisional |
| Sun, 10/4 | 27.6 | provisional |
| Sat, 10/3 | 24.4 | provisional |
| Fri, 10/2 | 21.8 | provisional |
| Thu, 10/1 | 19.8 | provisional |
| Wed, 9/30 | 22.2 | provisional |
| Tue, 9/29 | 23.6 | provisional |
| Mon, 9/28 | 24.6 | provisional |
| Sun, 9/27 | 23.4 | provisional |
| Sat, 9/26 | 23.5 | provisional |
| Fri, 9/25 | 13.8 | provisional |
| Thu, 9/24 | 16.5 | provisional |
| Wed, 9/23 | 11.8 | 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 | 27.5 | 19.9 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 22.2 | measured in 30 % of hours · provisional · 20 days without data from the station |
| August 2026 | 27.5 | 22.1 | measured in 97 % of hours · provisional |
| July 2026 | 18.3 | 22.8 | measured in 93 % of hours · provisional |
| June 2026 | 20.5 | too few readings | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 17.1 | 17.3 | measured in 94 % of hours · provisional |
| April 2026 | 29.6 | 25.7 | measured in 79 % of hours · provisional · 4 days without data from the station |
| March 2026 | 42 | 43.9 | measured in 100 % of hours · provisional |
| February 2026 | 42.7 | 81.8 | measured in 100 % of hours · provisional |
| January 2026 | 108.4 | 96.5 | measured in 88 % of hours · provisional · 2 days without data from the station |
| December 2025 | 80.8 | 71.9 | measured in 100 % of hours · verified |
| November 2025 | 52.3 | 96.4 | 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) | ≥ 40 above the number allowed | 88 above the number allowed | 92 above the number allowed |
| Days above 150 µg/m³ (warning threshold FBiH) | ≥ 7 above the number allowed | 12 above the number allowed | 19 above the number allowed |
| Days above 300 µg/m³ (alert threshold FBiH) | ≥ 1 above the number allowed | 1 above the number allowed | 0 |
| Annual average, µg/m³ (legal limit 40) | too few | 44 above the number allowed | 47.8 above the number allowed |
| Highest daily average, µg/m³ | 331January 23 | 303January 21 | 265January 23 |
| Highest hourly value, µg/m³ | 385January 22 | 420January 6 | 486December 18 |
| Hours measured | 86 % | 97 % | 98 % |
| Days without any reading from the station | 27 | 0 | 7 |
* 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.
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 2024 there were 103 such days.
- WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2024 there were 103 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2024: 48 µg/m³.
- WHO 2021: annual average 15 µg/m³. Average in 2024: 48 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 2024
| Day | Average | Times the limit |
|---|---|---|
| Jan 23, 2024 | 265 | 5.3 × |
| Dec 17, 2024 | 256 | 5.1 × |
| Dec 18, 2024 | 248 | 5.0 × |
| Nov 25, 2024 | 244 | 4.9 × |
| Nov 27, 2024 | 238 | 4.8 × |
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
17.7
Last 7 daysµg/m³
measured in 99 % of hours · provisional
too few readings
Last 30 days
measured in 49 % of hours · provisional
too few readings
Last 12 months
measured in 4 % of hours · provisional
Values as a table
| Hour to | µg/m³ | Note |
|---|---|---|
| Tuesday, 10/6 | ||
| 23:00 | 35.9 | |
| 22:00 | 41.1 | |
| 21:00 | 44.9 | |
| 20:00 | 49.7 | |
| 19:00 | 28.8 | |
| 18:00 | 14.4 | |
| 17:00 | 13.5 | |
| 16:00 | 16.1 | |
| 15:00 | 14.4 | |
| 14:00 | 18.1 | |
| 13:00 | 18.1 | |
| 12:00 | 21.3 | |
| 11:00 | 24.6 | |
| 10:00 | 22.3 | |
| 09:00 | 25.6 | |
| 08:00 | 22.4 | |
| 07:00 | 23.3 | |
| 06:00 | 23.8 | |
| 05:00 | 18.7 | |
| 04:00 | 24.5 | |
| 03:00 | 24.1 | |
| 02:00 | 22.1 | |
| 01:00 | 25.4 | |
| Monday, 10/5 | ||
| 00:00 | 24.9 | |
| 23:00 | 32.7 | |
| 22:00 | 37.1 | |
| 21:00 | 38.5 | |
| 20:00 | 57.5 | |
| 19:00 | 37.9 | |
| 18:00 | 19.5 | |
| 17:00 | 11.7 | |
| 16:00 | 10.7 | |
| 15:00 | 10.8 | |
| 14:00 | 10.6 | |
| 13:00 | 12.8 | |
| 12:00 | 15 | |
| 11:00 | 20.7 | |
| 10:00 | 20.1 | |
| 09:00 | 22.7 | |
| 08:00 | 25.7 | |
| 07:00 | 21.3 | |
| 06:00 | 19 | |
| 05:00 | 17.6 | |
| 04:00 | 22.9 | |
| 03:00 | 18.1 | |
| 02:00 | 19.2 | |
| 01:00 | 26.1 | |
| Sunday, 10/4 | ||
| 00:00 | 27.6 | |
| 23:00 | 26.9 | |
| 22:00 | 48.7 | |
| 21:00 | 45.2 | |
| 20:00 | 30.1 | |
| 19:00 | 17.8 | |
| 18:00 | 7.1 | |
| 17:00 | 7.3 | |
| 16:00 | 7.8 | |
| 15:00 | 9.4 | |
| 14:00 | 9.6 | |
| 13:00 | 9.7 | |
| 12:00 | 10.7 | |
| 11:00 | 15.5 | |
| 10:00 | 16.5 | |
| 09:00 | 18.1 | |
| 08:00 | 19.2 | |
| 07:00 | 18.8 | |
| 06:00 | 18.3 | |
| 05:00 | 14.1 | |
| 04:00 | 17.9 | |
| 03:00 | 21.2 | |
| 02:00 | 22.7 | |
| 01:00 | 24.9 | |
| Saturday, 10/3 | ||
| 00:00 | 27.3 | |
| 23:00 | 27.6 | |
| 22:00 | 27.5 | |
| 21:00 | 22.7 | |
| 20:00 | 17.7 | |
| 19:00 | 9.1 | |
| 18:00 | 4.8 | |
| 17:00 | 4.4 | |
| 16:00 | 4.6 | |
| 15:00 | 4.7 | |
| 14:00 | 5.1 | |
| 13:00 | 7.9 | |
| 12:00 | 12.9 | |
| 11:00 | 15.2 | |
| 10:00 | 17.8 | |
| 09:00 | 18 | |
| 08:00 | 15.9 | |
| 07:00 | 20.7 | |
| 06:00 | 18.8 | |
| 05:00 | 22.2 | |
| 04:00 | 17.9 | |
| 03:00 | 19.7 | |
| 02:00 | 20.9 | |
| 01:00 | 20.6 | |
| Friday, 10/2 | ||
| 00:00 | 19.7 | |
| 23:00 | 17.4 | |
| 22:00 | 12.1 | |
| 21:00 | 11.3 | |
| 20:00 | 7.9 | |
| 19:00 | 6.8 | |
| 18:00 | 7.1 | |
| 17:00 | 6.3 | |
| 16:00 | 4.9 | |
| 15:00 | 6.3 | |
| 14:00 | 8.2 | |
| 13:00 | 10.3 | |
| 12:00 | 11.5 | |
| 11:00 | 13.4 | |
| 10:00 | 14.1 | |
| 09:00 | 16.8 | |
| 08:00 | 20.5 | |
| 07:00 | 15.8 | |
| 06:00 | 15 | |
| 05:00 | 15.8 | |
| 04:00 | 17.8 | |
| 03:00 | 17.5 | |
| 02:00 | 16.3 | |
| 01:00 | 13.6 | |
| Thursday, 10/1 | ||
| 00:00 | 9 | |
| 23:00 | 9 | |
| 22:00 | 12 | |
| 21:00 | 9.4 | |
| 20:00 | 10.7 | |
| 19:00 | 7.7 | |
| 18:00 | 3.8 | |
| 17:00 | 4.5 | |
| 16:00 | 5 | |
| 15:00 | 5 | |
| 14:00 | 7.6 | |
| 13:00 | 12.6 | |
| 12:00 | 15 | |
| 11:00 | 19.4 | |
| 10:00 | 19.1 | |
| 09:00 | 17 | |
| 08:00 | 20.3 | |
| 07:00 | 19.5 | |
| 06:00 | 18.9 | |
| 05:00 | 17.5 | |
| 04:00 | 16.7 | |
| 03:00 | 17.3 | |
| 02:00 | 15.3 | |
| 01:00 | 13 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 24.9 | provisional |
| Mon, 10/5 | 23 | provisional |
| Sun, 10/4 | 19.4 | provisional |
| Sat, 10/3 | 16 | provisional |
| Fri, 10/2 | 12.8 | provisional |
| Thu, 10/1 | 12.7 | provisional |
| Wed, 9/30 | 15.1 | provisional |
| Tue, 9/29 | 16 | provisional |
| Mon, 9/28 | 17.8 | provisional |
| Sun, 9/27 | 18.5 | provisional |
| Sat, 9/26 | 19.3 | provisional |
| Fri, 9/25 | 11.1 | provisional |
| Thu, 9/24 | 10.6 | provisional |
| Wed, 9/23 | 6.9 | 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 | 18.1 | measured in 99 % of hours · provisional | |
| September 2026 | too few readings | measured in 30 % of hours · provisional · 20 days without data from the station | |
| August 2026 | too few readings | measured in 2 % of hours · provisional | |
| July 2026 | too few readings | ||
| June 2026 | too few readings | 1 day without data from the station | |
| May 2026 | too few readings | ||
| April 2026 | too few readings | 4 days without data from the station | |
| March 2026 | too few readings | ||
| February 2026 | too few readings | ||
| January 2026 | too few readings | 2 days without data from the station | |
| December 2025 | too few readings | ||
| November 2025 | too few readings |
PM2.5 by year
Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)
| Measure | 2026* |
|---|---|
| Days above 140 µg/m³ (warning threshold FBiH) | 0 |
| Days above 280 µg/m³ (alert threshold FBiH) | 0 |
| Annual average, µg/m³ (legal limit 25) | too few |
| Highest daily average, µg/m³ | 25October 6 |
| Highest hourly value, µg/m³ | 58October 5 |
| Hours measured | 6 % |
| Days without any reading from the station | 27 |
* 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.
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.
Nitrogen dioxide NO₂
79.6
Nowµg/m³
Measured at 21:00
58.9
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
47.8
Last 7 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 30 days
measured in 49 % of hours · provisional
too few readings
Last 12 months
measured in 80 % of hours · 1 month with too few readings · provisional
Days in 2024: NO₂, daily average above 85 µg/m³
12 days above the limit. 7 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Days above the limit with values (12)
- Jan 14 96
- Jan 15 114
- Jan 22 102
- Jan 23 122
- Jan 24 97
- Jan 25 102
- Jan 26 88
- Jan 31 88
- Feb 5 86
- Nov 26 86
- Dec 19 88
- Dec 31 93
Values in µg/m³, limit 85 µg/m³.
Months of 2024
| Month | Days above 85 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 8 above the number allowed | 0 | 122 | 7 |
| February | 1 above the number allowed | 0 | 86 | 0 |
| March | 0 | 0 | 58 | 0 |
| April | 0 | 0 | 54 | 0 |
| May | 0 | 0 | 37 | 0 |
| June | 0 | 0 | 38 | 0 |
| July | 0 | 0 | 39 | 0 |
| August | 0 | 0 | 50 | 0 |
| September | 0 | 0 | 46 | 0 |
| October | 0 | 0 | 41 | 0 |
| November | 1 above the number allowed | 0 | 86 | 0 |
| December | 2 above the number allowed | 0 | 93 | 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 | 29 | model estimate, not counted |
| 21:00 | 79.6 | |
| 20:00 | 124.2 | |
| 19:00 | 116.6 | |
| 18:00 | 50.4 | |
| 17:00 | 38.6 | |
| 16:00 | 21.8 | |
| 15:00 | 14.8 | |
| 14:00 | 27.2 | |
| 13:00 | 48.5 | |
| 12:00 | 51.7 | |
| 11:00 | 57.6 | |
| 10:00 | 67.4 | |
| 09:00 | 67.7 | |
| 08:00 | 53.4 | |
| 07:00 | 44.9 | |
| 06:00 | 44.5 | |
| 05:00 | 45.1 | |
| 04:00 | 52.1 | |
| 03:00 | 61.6 | |
| 02:00 | 68.4 | |
| 01:00 | 72 | |
| Tuesday, 10/6 | ||
| 00:00 | 88.6 | |
| 23:00 | 93.9 | |
| 22:00 | 100.4 | |
| 21:00 | 110.6 | |
| 20:00 | 123.7 | |
| 19:00 | 121.7 | |
| 18:00 | 67.5 | |
| 17:00 | 43.9 | |
| 16:00 | 21.6 | |
| 15:00 | 17.1 | |
| 14:00 | 35.1 | |
| 13:00 | 37.5 | |
| 12:00 | 35.2 | |
| 11:00 | 47.4 | |
| 10:00 | 43.2 | |
| 09:00 | 56.2 | |
| 08:00 | 52.6 | |
| 07:00 | 45.5 | |
| 06:00 | 42.9 | |
| 05:00 | 31.9 | |
| 04:00 | 43.7 | |
| 03:00 | 53.3 | |
| 02:00 | 56 | |
| 01:00 | 67.4 | |
| Monday, 10/5 | ||
| 00:00 | 77.5 | |
| 23:00 | 77.5 | |
| 22:00 | 87.4 | |
| 21:00 | 101.8 | |
| 20:00 | 113.6 | |
| 19:00 | 117.4 | |
| 18:00 | 84.4 | |
| 17:00 | 22.1 | |
| 16:00 | 18.4 | |
| 15:00 | 20.7 | |
| 14:00 | 26.8 | |
| 13:00 | 30.7 | |
| 12:00 | 28 | |
| 11:00 | 43.7 | |
| 10:00 | 39.8 | |
| 09:00 | 55.7 | |
| 08:00 | 49.3 | |
| 07:00 | 41.3 | |
| 06:00 | 38.5 | |
| 05:00 | 33.6 | |
| 04:00 | 38.5 | |
| 03:00 | 43.2 | |
| 02:00 | 45 | |
| 01:00 | 65.2 | |
| Sunday, 10/4 | ||
| 00:00 | 75.5 | |
| 23:00 | 79.5 | |
| 22:00 | 88.7 | |
| 21:00 | 95.7 | |
| 20:00 | 111.4 | |
| 19:00 | 101.5 | |
| 18:00 | 24.7 | |
| 17:00 | 18.7 | |
| 16:00 | 20 | |
| 15:00 | 19.4 | |
| 14:00 | 13.6 | |
| 13:00 | 15.9 | |
| 12:00 | 19.3 | |
| 11:00 | 25 | |
| 10:00 | 23 | |
| 09:00 | 29.8 | |
| 08:00 | 30.2 | |
| 07:00 | 37 | |
| 06:00 | 31.9 | |
| 05:00 | 31.8 | |
| 04:00 | 45.8 | |
| 03:00 | 49.2 | |
| 02:00 | 60.2 | |
| 01:00 | 67 | |
| Saturday, 10/3 | ||
| 00:00 | 73.1 | |
| 23:00 | 79.6 | |
| 22:00 | 87.9 | |
| 21:00 | 84.6 | |
| 20:00 | 93.1 | |
| 19:00 | 80.1 | |
| 18:00 | 42.9 | |
| 17:00 | 24 | |
| 16:00 | 21.2 | |
| 15:00 | 19.7 | |
| 14:00 | 18.4 | |
| 13:00 | 19.1 | |
| 12:00 | 29.2 | |
| 11:00 | 35.1 | |
| 10:00 | 38.8 | |
| 09:00 | 47.1 | |
| 08:00 | 44.1 | |
| 07:00 | 38.9 | |
| 06:00 | 36.5 | |
| 05:00 | 39.3 | |
| 04:00 | 44.5 | |
| 03:00 | 60.7 | |
| 02:00 | 63.3 | |
| 01:00 | 71.4 | |
| Friday, 10/2 | ||
| 00:00 | 75.2 | |
| 23:00 | 69.7 | |
| 22:00 | 73.8 | |
| 21:00 | 80.7 | |
| 20:00 | 68.3 | |
| 19:00 | 71.1 | |
| 18:00 | 53.6 | |
| 17:00 | 33 | |
| 16:00 | 22.2 | |
| 15:00 | 19.5 | |
| 14:00 | 22.1 | |
| 13:00 | 21.2 | |
| 12:00 | 27.6 | |
| 11:00 | 29.7 | |
| 10:00 | 29.9 | |
| 09:00 | 47.2 | |
| 08:00 | 51.6 | |
| 07:00 | 45 | |
| 06:00 | 34.3 | |
| 05:00 | 29.8 | |
| 04:00 | 29.4 | |
| 03:00 | 33.6 | |
| 02:00 | 49.4 | |
| 01:00 | 59 | |
| Thursday, 10/1 | ||
| 00:00 | 44.8 | |
| 23:00 | 52.8 | |
| 22:00 | 73.6 | |
| 21:00 | 68.5 | |
| 20:00 | 83.8 | |
| 19:00 | 68.5 | |
| 18:00 | 17.8 | |
| 17:00 | 21 | |
| 16:00 | 22.3 | |
| 15:00 | 19.5 | |
| 14:00 | 17.5 | |
| 13:00 | 12.3 | |
| 12:00 | 34.6 | |
| 11:00 | 43.1 | |
| 10:00 | 42 | |
| 09:00 | 42.9 | |
| 08:00 | 45.3 | |
| 07:00 | 38.2 | |
| 06:00 | 31.3 | |
| 05:00 | 23.4 | |
| 04:00 | 25.5 | |
| 03:00 | 30 | |
| 02:00 | 52.5 | |
| 01:00 | 46.4 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 59.9 | provisional |
| Mon, 10/5 | 54.2 | provisional |
| Sun, 10/4 | 46.5 | provisional |
| Sat, 10/3 | 49.7 | provisional |
| Fri, 10/2 | 44.9 | provisional |
| Thu, 10/1 | 39.9 | provisional |
| Wed, 9/30 | 39.5 | provisional |
| Tue, 9/29 | 47.2 | provisional |
| Mon, 9/28 | 44.2 | provisional |
| Sun, 9/27 | 26.9 | provisional |
| Sat, 9/26 | 28.2 | provisional |
| Fri, 9/25 | 29.8 | provisional |
| Thu, 9/24 | 40 | provisional |
| Wed, 9/23 | 30.2 | 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 | 49.2 | 73.9 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 87.2 | measured in 30 % of hours · provisional · 20 days without data from the station |
| August 2026 | 36.7 | too few readings | measured in 97 % of hours · provisional |
| July 2026 | 28.1 | 32.2 | measured in 93 % of hours · provisional |
| June 2026 | 25.2 | 34.2 | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 25.9 | 30.6 | measured in 93 % of hours · provisional |
| April 2026 | 32 | 31.2 | measured in 79 % of hours · provisional · 4 days without data from the station |
| March 2026 | too few readings | 36.5 | measured in 61 % of hours · provisional |
| February 2026 | 54.3 | 48 | measured in 100 % of hours · provisional |
| January 2026 | 91.1 | 52.3 | measured in 86 % of hours · provisional · 2 days without data from the station |
| December 2025 | too few readings | 46.4 | measured in 72 % of hours · verified |
| November 2025 | too few readings | 44 | measured in 62 % 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) | ≥ 11 above the number allowed | ≥ 52 above the number allowed | 12 above the number allowed |
| Hours above 200 µg/m³ (allowed 18) | ≥ 54 above the number allowed | ≥ 6² | 0 |
| Hours above 400 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (legal limit 40) | too few | 50.8¹ | 37.1 |
| Highest daily average, µg/m³ | 206January 15 | 133January 2 | 122January 23 |
| Highest hourly value, µg/m³ | 344January 15 | 220December 29 | 173January 22 |
| Hours measured | 82 % | 90 % | 97 % |
| Days without any reading from the station | 27 | 0 | 7 |
* 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.
¹ Fewer than 90 % of the hours were measured, so we do not compare this average with the limit.
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 2024 there were 57 such days.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2024 there were 281 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2024: 37 µg/m³.
- WHO 2021: annual average 10 µg/m³. Average in 2024: 37 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 2024
| Day | Average | Times the limit |
|---|---|---|
| Jan 23, 2024 | 122 | 1.4 × |
| Jan 15, 2024 | 114 | 1.3 × |
| Jan 22, 2024 | 102 | 1.2 × |
| Jan 25, 2024 | 102 | 1.2 × |
| Jan 24, 2024 | 97 | 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
40.2
Nowµg/m³
Measured at 21:00
29.5
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
31.2
Last 7 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 30 days
measured in 49 % of hours · provisional
too few readings
Last 12 months
measured in 89 % of hours · 1 month with too few readings · provisional
Days in 2024: O₃, 8-hour average above 120 µg/m³
55 days above the limit. 7 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Days above the limit with values (55)
- Feb 23 120
- Feb 24 126
- Mar 10 121
- Mar 11 122
- Mar 24 121
- Mar 31 131
- Apr 1 124
- Apr 10 121
- Apr 13 121
- Apr 15 150
- Apr 16 160
- Apr 26 120
- Apr 28 121
- May 2 124
- May 5 128
- May 12 126
- May 17 133
- May 19 132
- May 31 120
- Jun 1 131
- Jun 6 124
- Jun 10 137
- Jun 16 133
- Jun 17 137
- Jun 19 131
- Jul 1 127
- Jul 7 133
- Jul 10 151
- Jul 11 143
- Jul 12 130
- Jul 13 137
- Jul 14 143
- Jul 15 158
- Jul 16 137
- Jul 22 124
- Jul 26 124
- Jul 27 128
- Jul 28 126
- Jul 31 142
- Aug 1 123
- Aug 4 126
- Aug 5 124
- Aug 7 127
- Aug 13 138
- Aug 15 155
- Aug 16 156
- Aug 17 139
- Aug 18 132
- Aug 23 128
- Aug 24 133
- Aug 25 136
- Aug 26 128
- Sep 1 130
- Sep 2 133
- Sep 3 131
Values in µg/m³, limit 120 µg/m³.
Months of 2024
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 90 | 7 |
| February | 2 above the number allowed | 126 | 0 |
| March | 4 above the number allowed | 131 | 0 |
| April | 7 above the number allowed | 160 | 0 |
| May | 6 above the number allowed | 133 | 0 |
| June | 6 above the number allowed | 137 | 0 |
| July | 14 above the number allowed | 158 | 0 |
| August | 13 above the number allowed | 156 | 0 |
| September | 3 above the number allowed | 133 | 0 |
| October | 0 | 100 | 0 |
| November | 0 | 88 | 0 |
| December | 0 | 52 | 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 | 40 | model estimate, not counted |
| 21:00 | 40.2 | |
| 20:00 | 3.6 | |
| 19:00 | 8.1 | |
| 18:00 | 61.4 | |
| 17:00 | 78.3 | |
| 16:00 | 97.2 | |
| 15:00 | 105.2 | |
| 14:00 | 81.7 | |
| 13:00 | 57.6 | |
| 12:00 | 50 | |
| 11:00 | 28.8 | |
| 10:00 | 10.5 | |
| 09:00 | 3.4 | |
| 08:00 | 1.8 | |
| 07:00 | 1.2 | |
| 06:00 | 1.7 | |
| 05:00 | 5.1 | |
| 04:00 | 2.8 | |
| 03:00 | 2 | |
| 02:00 | 2.4 | |
| 01:00 | 3.5 | |
| Tuesday, 10/6 | ||
| 00:00 | 2.3 | |
| 23:00 | 2.7 | |
| 22:00 | 3.3 | |
| 21:00 | 3.3 | |
| 20:00 | 3.7 | |
| 19:00 | 4.5 | |
| 18:00 | 53.2 | |
| 17:00 | 81.3 | |
| 16:00 | 99.5 | |
| 15:00 | 101.7 | |
| 14:00 | 75.8 | |
| 13:00 | 66.4 | |
| 12:00 | 58 | |
| 11:00 | 32.5 | |
| 10:00 | 26.2 | |
| 09:00 | 8.9 | |
| 08:00 | 2.1 | |
| 07:00 | 1.4 | |
| 06:00 | 2 | |
| 05:00 | 20.2 | |
| 04:00 | 9.1 | |
| 03:00 | 5.6 | |
| 02:00 | 9.5 | |
| 01:00 | 4.3 | |
| Monday, 10/5 | ||
| 00:00 | 2.4 | |
| 23:00 | 3.3 | |
| 22:00 | 2.7 | |
| 21:00 | 3 | |
| 20:00 | 4 | |
| 19:00 | 3.7 | |
| 18:00 | 29.7 | |
| 17:00 | 95.4 | |
| 16:00 | 98 | |
| 15:00 | 89.7 | |
| 14:00 | 77.4 | |
| 13:00 | 66.5 | |
| 12:00 | 59.3 | |
| 11:00 | 31 | |
| 10:00 | 24.9 | |
| 09:00 | 6.5 | |
| 08:00 | 2.7 | |
| 07:00 | 2.3 | |
| 06:00 | 4.9 | |
| 05:00 | 13.8 | |
| 04:00 | 11.1 | |
| 03:00 | 10.4 | |
| 02:00 | 15.5 | |
| 01:00 | 3.4 | |
| Sunday, 10/4 | ||
| 00:00 | 3.1 | |
| 23:00 | 2.9 | |
| 22:00 | 3.5 | |
| 21:00 | 3.9 | |
| 20:00 | 3.4 | |
| 19:00 | 15.2 | |
| 18:00 | 79.7 | |
| 17:00 | 89.7 | |
| 16:00 | 91.8 | |
| 15:00 | 93.5 | |
| 14:00 | 91.8 | |
| 13:00 | 82.3 | |
| 12:00 | 67.4 | |
| 11:00 | 47.4 | |
| 10:00 | 35.6 | |
| 09:00 | 18.3 | |
| 08:00 | 11 | |
| 07:00 | 3.4 | |
| 06:00 | 6.5 | |
| 05:00 | 17.8 | |
| 04:00 | 7.1 | |
| 03:00 | 4.5 | |
| 02:00 | 3.4 | |
| 01:00 | 2.4 | |
| Saturday, 10/3 | ||
| 00:00 | 2.9 | |
| 23:00 | 2.8 | |
| 22:00 | 2.9 | |
| 21:00 | 3.6 | |
| 20:00 | 5.8 | |
| 19:00 | 20.3 | |
| 18:00 | 55.5 | |
| 17:00 | 72.7 | |
| 16:00 | 76.1 | |
| 15:00 | 78.4 | |
| 14:00 | 80.8 | |
| 13:00 | 81.3 | |
| 12:00 | 61.4 | |
| 11:00 | 46 | |
| 10:00 | 27.2 | |
| 09:00 | 9.6 | |
| 08:00 | 5.5 | |
| 07:00 | 7.5 | |
| 06:00 | 11.8 | |
| 05:00 | 8 | |
| 04:00 | 12.2 | |
| 03:00 | 2.5 | |
| 02:00 | 3.8 | |
| 01:00 | 2.3 | |
| Friday, 10/2 | ||
| 00:00 | 2.5 | |
| 23:00 | 12.3 | |
| 22:00 | 22.1 | |
| 21:00 | 25.3 | |
| 20:00 | 33.2 | |
| 19:00 | 34.9 | |
| 18:00 | 51.5 | |
| 17:00 | 78.5 | |
| 16:00 | 85.6 | |
| 15:00 | 85.9 | |
| 14:00 | 76.8 | |
| 13:00 | 69.5 | |
| 12:00 | 57.8 | |
| 11:00 | 44.4 | |
| 10:00 | 31.6 | |
| 09:00 | 10.5 | |
| 08:00 | 2.5 | |
| 07:00 | 1.9 | |
| 06:00 | 7.2 | |
| 05:00 | 17.2 | |
| 04:00 | 17 | |
| 03:00 | 17.6 | |
| 02:00 | 8.6 | |
| 01:00 | 4.7 | |
| Thursday, 10/1 | ||
| 00:00 | 37.2 | |
| 23:00 | 39.7 | |
| 22:00 | 16.7 | |
| 21:00 | 24.2 | |
| 20:00 | 13.7 | |
| 19:00 | 27.7 | |
| 18:00 | 72 | |
| 17:00 | 71.2 | |
| 16:00 | 71.2 | |
| 15:00 | 74.6 | |
| 14:00 | 78.2 | |
| 13:00 | 80.1 | |
| 12:00 | 51.9 | |
| 11:00 | 27.2 | |
| 10:00 | 17.4 | |
| 09:00 | 9.9 | |
| 08:00 | 2.4 | |
| 07:00 | 2.1 | |
| 06:00 | 7.4 | |
| 05:00 | 17.6 | |
| 04:00 | 21.9 | |
| 03:00 | 20.9 | |
| 02:00 | 6.9 | |
| 01:00 | 21.6 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 71 | provisional |
| Mon, 10/5 | 68.4 | provisional |
| Sun, 10/4 | 80.5 | provisional |
| Sat, 10/3 | 69 | provisional |
| Fri, 10/2 | 68.7 | provisional |
| Thu, 10/1 | 65.9 | provisional |
| Wed, 9/30 | 64.1 | provisional |
| Tue, 9/29 | 71.9 | provisional |
| Mon, 9/28 | 70.5 | provisional |
| Sun, 9/27 | 64.7 | provisional |
| Sat, 9/26 | 49.4 | provisional |
| Fri, 9/25 | 39.5 | provisional |
| Thu, 9/24 | 60.1 | provisional |
| Wed, 9/23 | 46.2 | 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 | 30.7 | 28.9 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 34 | measured in 30 % of hours · provisional · 20 days without data from the station |
| August 2026 | 57 | 54.8 | measured in 97 % of hours · provisional |
| July 2026 | 49.6 | 61.6 | measured in 93 % of hours · provisional |
| June 2026 | 46.2 | 70 | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 53.5 | 61 | measured in 94 % of hours · provisional |
| April 2026 | 49.5 | 61.5 | measured in 79 % of hours · provisional · 4 days without data from the station |
| March 2026 | 38.4 | 57.1 | measured in 100 % of hours · provisional |
| February 2026 | 29.1 | too few readings | measured in 100 % of hours · provisional |
| January 2026 | 19.7 | too few readings | measured in 88 % of hours · provisional · 2 days without data from the station |
| December 2025 | 7 | 13.1 | measured in 100 % of hours · verified |
| November 2025 | 17.8 | 12.3 | 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) | ≥ 1² | ≥ 36 | 55 |
| Annual average, µg/m³ | too few | 44.4 | 44.2 |
| Highest 8-hour average, µg/m³ | 125August 11 | 146July 4 | 160April 16 |
| Hours measured | 86 % | 90 % | 98 % |
| Days without any reading from the station | 27 | 0 | 7 |
* 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.
The column for 2023 is shown on wider screens.
The worst days of 2024
| Day | Highest 8 h | Times the limit |
|---|---|---|
| Apr 16, 2024 | 160 | 1.3 × |
| Jul 15, 2024 | 158 | 1.3 × |
| Aug 16, 2024 | 156 | 1.3 × |
| Aug 15, 2024 | 155 | 1.3 × |
| Jul 10, 2024 | 151 | 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
5.4
Nowµg/m³
Measured at 21:00
5
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
4.6
Last 7 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 30 days
measured in 49 % of hours · provisional
too few readings
Last 12 months
measured in 89 % of hours · 1 month with too few readings · provisional
Days in 2024: SO₂, daily average above 125 µg/m³
No measured day above the limit. 7 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no SO₂ data in the EEA database
- no data from the station
Months of 2024
| Month | Days above 125 | Hours above 350 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 80 | 7 |
| February | 0 | 0 | 70 | 0 |
| March | 0 | 0 | 44 | 0 |
| April | 0 | 0 | 19 | 0 |
| May | 0 | 0 | 18 | 0 |
| June | 0 | 0 | 14 | 0 |
| July | 0 | 0 | 31 | 0 |
| August | 0 | 0 | 26 | 0 |
| September | 0 | 0 | 11 | 0 |
| October | 0 | 0 | 35 | 0 |
| November | 0 | 0 | 63 | 0 |
| December | 0 | 0 | 113 | 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 | 5.4 | |
| 20:00 | 11.3 | |
| 19:00 | 6 | |
| 18:00 | 2.8 | |
| 17:00 | 3.1 | |
| 16:00 | 3.7 | |
| 15:00 | 5 | |
| 14:00 | 5.8 | |
| 13:00 | 8.7 | |
| 12:00 | 9.2 | |
| 11:00 | 7 | |
| 10:00 | 6.5 | |
| 09:00 | 5 | |
| 08:00 | 3.8 | |
| 07:00 | 2.9 | |
| 06:00 | 2.6 | |
| 05:00 | 2.4 | |
| 04:00 | 3 | |
| 03:00 | 3.4 | |
| 02:00 | 3.6 | |
| 01:00 | 4.3 | |
| Tuesday, 10/6 | ||
| 00:00 | 5.7 | |
| 23:00 | 7.1 | |
| 22:00 | 8.1 | |
| 21:00 | 9.4 | |
| 20:00 | 12 | |
| 19:00 | 9 | |
| 18:00 | 9.9 | |
| 17:00 | 6.1 | |
| 16:00 | 3.2 | |
| 15:00 | 3.3 | |
| 14:00 | 4.1 | |
| 13:00 | 4.7 | |
| 12:00 | 5.2 | |
| 11:00 | 5.4 | |
| 10:00 | 4.9 | |
| 09:00 | 4 | |
| 08:00 | 3.3 | |
| 07:00 | 2.7 | |
| 06:00 | 2.5 | |
| 05:00 | 2.6 | |
| 04:00 | 2.8 | |
| 03:00 | 3.2 | |
| 02:00 | 3.6 | |
| 01:00 | 4.2 | |
| Monday, 10/5 | ||
| 00:00 | 5.6 | |
| 23:00 | 6 | |
| 22:00 | 7.4 | |
| 21:00 | 9.7 | |
| 20:00 | 15.7 | |
| 19:00 | 6.7 | |
| 18:00 | 4.2 | |
| 17:00 | 4.4 | |
| 16:00 | 3.9 | |
| 15:00 | 3.7 | |
| 14:00 | 4.3 | |
| 13:00 | 5.2 | |
| 12:00 | 5.2 | |
| 11:00 | 4.7 | |
| 10:00 | 4.8 | |
| 09:00 | 4.1 | |
| 08:00 | 3.4 | |
| 07:00 | 2.7 | |
| 06:00 | 2.7 | |
| 05:00 | 2.6 | |
| 04:00 | 2.7 | |
| 03:00 | 2.8 | |
| 02:00 | 3 | |
| 01:00 | 4 | |
| Sunday, 10/4 | ||
| 00:00 | 5.2 | |
| 23:00 | 6 | |
| 22:00 | 7.7 | |
| 21:00 | 11.9 | |
| 20:00 | 32 | |
| 19:00 | 94.2 | |
| 18:00 | 36.3 | |
| 17:00 | 2.5 | |
| 16:00 | 2.5 | |
| 15:00 | 2.5 | |
| 14:00 | 2.6 | |
| 13:00 | 2.9 | |
| 12:00 | 2.8 | |
| 11:00 | 3.3 | |
| 10:00 | 3.8 | |
| 09:00 | 3 | |
| 08:00 | 2.4 | |
| 07:00 | 2.1 | |
| 06:00 | 2.1 | |
| 05:00 | 2.3 | |
| 04:00 | 2.4 | |
| 03:00 | 2.3 | |
| 02:00 | 3.1 | |
| 01:00 | 3.7 | |
| Saturday, 10/3 | ||
| 00:00 | 4.3 | |
| 23:00 | 4.7 | |
| 22:00 | 5.5 | |
| 21:00 | 5.4 | |
| 20:00 | 3.6 | |
| 19:00 | 3.1 | |
| 18:00 | 2.1 | |
| 17:00 | 2 | |
| 16:00 | 1.9 | |
| 15:00 | 2.1 | |
| 14:00 | 2.1 | |
| 13:00 | 2.7 | |
| 12:00 | 3 | |
| 11:00 | 3.4 | |
| 10:00 | 4.1 | |
| 09:00 | 3.3 | |
| 08:00 | 2.6 | |
| 07:00 | 2.2 | |
| 06:00 | 2.2 | |
| 05:00 | 2.1 | |
| 04:00 | 2.4 | |
| 03:00 | 2.9 | |
| 02:00 | 2.9 | |
| 01:00 | 3.5 | |
| Friday, 10/2 | ||
| 00:00 | 4 | |
| 23:00 | 4.1 | |
| 22:00 | 3.3 | |
| 21:00 | 3.1 | |
| 20:00 | 2.7 | |
| 19:00 | 2.4 | |
| 18:00 | 3.1 | |
| 17:00 | 2.3 | |
| 16:00 | 2.1 | |
| 15:00 | 2.1 | |
| 14:00 | 2.3 | |
| 13:00 | 2.6 | |
| 12:00 | 2.8 | |
| 11:00 | 3.3 | |
| 10:00 | 4.3 | |
| 09:00 | 4 | |
| 08:00 | 3.8 | |
| 07:00 | 2.7 | |
| 06:00 | 2.4 | |
| 05:00 | 2.5 | |
| 04:00 | 2.4 | |
| 03:00 | 2.4 | |
| 02:00 | 2.6 | |
| 01:00 | 2.7 | |
| Thursday, 10/1 | ||
| 00:00 | 2.4 | |
| 23:00 | 2.4 | |
| 22:00 | 3 | |
| 21:00 | 2.6 | |
| 20:00 | 3.1 | |
| 19:00 | 2.6 | |
| 18:00 | 2 | |
| 17:00 | 2.2 | |
| 16:00 | 2 | |
| 15:00 | 1.9 | |
| 14:00 | 2.1 | |
| 13:00 | 2.4 | |
| 12:00 | 3.3 | |
| 11:00 | 4.4 | |
| 10:00 | 4.9 | |
| 09:00 | 3.4 | |
| 08:00 | 3.3 | |
| 07:00 | 2.4 | |
| 06:00 | 2.1 | |
| 05:00 | 2.4 | |
| 04:00 | 2.3 | |
| 03:00 | 2.3 | |
| 02:00 | 2.4 | |
| 01:00 | 2.6 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 5.3 | provisional |
| Mon, 10/5 | 5 | provisional |
| Sun, 10/4 | 10 | provisional |
| Sat, 10/3 | 3.1 | provisional |
| Fri, 10/2 | 2.9 | provisional |
| Thu, 10/1 | 2.7 | provisional |
| Wed, 9/30 | 3 | provisional |
| Tue, 9/29 | 8.1 | provisional |
| Mon, 9/28 | 4.1 | provisional |
| Sun, 9/27 | 2.5 | provisional |
| Sat, 9/26 | 4.6 | provisional |
| Fri, 9/25 | 4.8 | provisional |
| Thu, 9/24 | 4.7 | provisional |
| Wed, 9/23 | 26.6 | 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 | 4.8 | 7.9 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 5.7 | measured in 30 % of hours · provisional · 20 days without data from the station |
| August 2026 | 9.5 | 7.8 | measured in 97 % of hours · provisional |
| July 2026 | 9 | 8.6 | measured in 93 % of hours · provisional |
| June 2026 | 8.4 | 7.8 | measured in 92 % of hours · provisional · 1 day without data from the station |
| May 2026 | 7.1 | 6.5 | measured in 94 % of hours · provisional |
| April 2026 | 10.4 | 6.9 | measured in 79 % of hours · provisional · 4 days without data from the station |
| March 2026 | 12.9 | 8 | measured in 100 % of hours · provisional |
| February 2026 | 16.6 | 33.7 | measured in 100 % of hours · provisional |
| January 2026 | 31.6 | 25 | measured in 88 % of hours · provisional · 2 days without data from the station |
| December 2025 | 14.5 | 27.6 | measured in 100 % of hours · verified |
| November 2025 | 13.1 | 16.9 | 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) | 0² | 0 | 0 |
| Hours above 350 µg/m³ (allowed 24) | 0² | 2 | 0 |
| Hours above 500 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (legal limit 50) | too few | 12.2 | 13.3 |
| Highest daily average, µg/m³ | 105January 22 | 103February 5 | 113December 28 |
| Highest hourly value, µg/m³ | 279August 7 | 423February 5 | 298February 17 |
| Hours measured | 86 % | 100 % | 95 % |
| Days without any reading from the station | 27 | 0 | 7 |
* 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.
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 2024 there were 9 such days.
- WHO 2021: daily 40 µg/m³, at most three to four days a year. In 2024 there were 17 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2024: 13 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.
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.
Other stations in Novi Grad, Sarajevo Canton
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