Air at the Nis-Osnovna skola Sveti Sava station
Medijana, Serbia
Network: Agency for Environmental Protection · Station code: RS0033A
This year, up to yesterday (October 6)
at least
12 days
with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.
Readings are missing for part of the period, so the real number may be higher.
In 2025: 15 days above the limit, the target value allows 25 as a three-year average.
at least
5 days
with a daily average of particulate matter PM10 above the EU limit of 50 µg/m³.
Readings are missing for part of the period, so the real number may be higher.
Worst day: August 8, 2026, O₃ 138 µg/m³ as a daily average, 1.1 times the limit.
Daily average for 217 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
Poor
Air now · Measured at 21:00
Latest values
Latest value: 21:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 76 µg/m³ | Moderate |
| NO₂ | 77.2 µg/m³ | Poor |
| O₃ | 11.4 µg/m³ | Good |
| SO₂ | 8 µg/m³ | Good |
How the air is changing
Over the last seven days there was more PM10, PM2.5, NO₂, and O₃ in the air than the week before.
- PM10: average 28.6 µg/m³, week before 18.9 µg/m³
- PM2.5: average 12 µg/m³, week before 10.5 µg/m³
- NO₂: average 21.5 µg/m³, week before 16.7 µg/m³
- O₃: average 51.5 µg/m³, week before 39.4 µg/m³
- SO₂: average 6 µg/m³, week before 7 µg/m³
Last month there was more NO₂ and less O₃ in the air than the month before.
- PM10: average 25.6 µg/m³, month before 27.6 µg/m³
- PM2.5: average 11 µg/m³, month before 11.3 µg/m³
- NO₂: average 16.8 µg/m³, month before 13.4 µg/m³
- O₃: average 62.7 µg/m³, month before 84.8 µg/m³
- SO₂: average 7.9 µg/m³, month before 7.4 µg/m³
Show
Particulate matter PM10
76
Nowµg/m³
Measured at 21:00
49.5
Last 24 hoursµg/m³
measured in 96 % of hours · provisional
28.6
Last 7 daysµg/m³
measured in 100 % of hours · provisional
26
Last 30 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 12 months
measured in 84 % of hours · 2 months with too few readings · provisional
Days in 2025: PM10, daily average above 50 µg/m³
72 days above the limit.
- above the limit
- below the limit
- too few readings for the day
Days above the limit with values (72)
- Jan 1 108
- Jan 2 140
- Jan 3 51
- Jan 5 92
- Jan 6 124
- Jan 7 70
- Jan 8 78
- Jan 9 84
- Jan 17 53
- Jan 19 51
- Jan 20 86
- Jan 21 144
- Jan 22 131
- Jan 23 97
- Jan 24 61
- Jan 25 56
- Jan 26 109
- Jan 27 78
- Jan 28 69
- Jan 30 60
- Jan 31 75
- Feb 1 64
- Feb 2 74
- Feb 3 53
- Feb 4 52
- Feb 5 62
- Feb 6 59
- Feb 10 71
- Feb 11 57
- Feb 13 51
- Feb 14 68
- Feb 19 53
- Feb 20 83
- Feb 21 62
- Feb 24 84
- Feb 25 97
- Feb 26 61
- Feb 28 54
- Mar 4 59
- Mar 5 64
- Mar 6 75
- Mar 7 62
- Mar 8 57
- Mar 9 53
- Mar 10 73
- Mar 12 96
- Mar 21 57
- Apr 11 68
- Oct 25 51
- Oct 29 54
- Oct 31 50
- Nov 1 53
- Nov 2 53
- Nov 12 65
- Nov 13 58
- Nov 14 77
- Nov 15 77
- Nov 16 96
- Nov 17 101
- Dec 1 55
- Dec 2 78
- Dec 9 72
- Dec 10 79
- Dec 11 57
- Dec 15 77
- Dec 16 106
- Dec 17 144
- Dec 18 108
- Dec 19 89
- Dec 20 92
- Dec 23 64
- Dec 29 68
Values in µg/m³, limit 50 µg/m³.
Months of 2025
| Month | Days above 50 | Highest day | No readings |
|---|---|---|---|
| January | 21 above the number allowed | 144 | 0 |
| February | 17 above the number allowed | 97 | 0 |
| March | 9 above the number allowed | 96 | 0 |
| April | 1 above the number allowed | 68 | 0 |
| May | 0 | 35 | 0 |
| June | 0 | 46 | 0 |
| July | 0 | 47 | 0 |
| August | 0 | 34 | 0 |
| September | 0 | 35 | 0 |
| October | 3 above the number allowed | 54 | 0 |
| November | 8 above the number allowed | 101 | 0 |
| December | 13 above the number allowed | 144 | 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 | 76 | |
| 20:00 | 104.6 | |
| 19:00 | 89.9 | |
| 18:00 | 82.7 | |
| 17:00 | 59.7 | |
| 16:00 | 53.6 | |
| 15:00 | 47.4 | |
| 14:00 | 43.1 | |
| 13:00 | 56 | |
| 12:00 | 57.4 | |
| 11:00 | 48.9 | |
| 10:00 | 51 | |
| 09:00 | 48.9 | |
| 08:00 | 30.6 | |
| 07:00 | 22.1 | |
| 06:00 | 20 | |
| 05:00 | 21.1 | |
| 04:00 | 23.9 | |
| 03:00 | 28.4 | |
| 02:00 | 29.2 | |
| 01:00 | 40.1 | |
| Tuesday, 10/6 | ||
| 00:00 | 51.1 | |
| 23:00 | 53.4 | |
| 22:00 | 53.9 | |
| 21:00 | 60.5 | |
| 20:00 | 72.7 | |
| 19:00 | 47.6 | |
| 18:00 | 38.9 | |
| 17:00 | 30.1 | |
| 16:00 | 28.5 | |
| 15:00 | 37.1 | |
| 14:00 | 34.6 | |
| 13:00 | 34.9 | |
| 12:00 | 36.6 | |
| 11:00 | 39.4 | |
| 10:00 | 51.1 | |
| 09:00 | 28.8 | |
| 08:00 | 19 | |
| 07:00 | 17.7 | |
| 06:00 | 17.5 | |
| 05:00 | 15.8 | |
| 04:00 | 17.9 | |
| 03:00 | 22.8 | |
| 02:00 | 32.1 | |
| 01:00 | 41.6 | |
| Monday, 10/5 | ||
| 00:00 | 43.4 | |
| 23:00 | 52.5 | |
| 22:00 | 50.5 | |
| 21:00 | 51.9 | |
| 20:00 | 48.7 | |
| 19:00 | 51.5 | |
| 18:00 | 26.8 | |
| 17:00 | 24.6 | |
| 16:00 | 33.7 | |
| 15:00 | 32.9 | |
| 14:00 | 26.2 | |
| 13:00 | 28.7 | |
| 12:00 | 29 | |
| 11:00 | 33.4 | |
| 10:00 | 43.6 | |
| 09:00 | 31.5 | |
| 08:00 | 18.8 | |
| 07:00 | 15.7 | |
| 06:00 | 15 | |
| 05:00 | 16.9 | |
| 04:00 | 19.6 | |
| 03:00 | 20.2 | |
| 02:00 | 24.9 | |
| 01:00 | 29.8 | |
| Sunday, 10/4 | ||
| 00:00 | 34.2 | |
| 23:00 | 40.9 | |
| 22:00 | 52.9 | |
| 21:00 | 63.6 | |
| 20:00 | 45.7 | |
| 19:00 | 33.8 | |
| 18:00 | 22.9 | |
| 17:00 | 16.8 | |
| 16:00 | 16.2 | |
| 15:00 | 18.1 | |
| 14:00 | 26.4 | |
| 13:00 | 24.3 | |
| 12:00 | 23.3 | |
| 11:00 | 15.8 | |
| 10:00 | 17.1 | |
| 09:00 | 15.5 | |
| 08:00 | 11 | |
| 07:00 | 10.8 | |
| 06:00 | 12.7 | |
| 05:00 | 19 | |
| 04:00 | 19.5 | |
| 03:00 | 23.6 | |
| 02:00 | 23.3 | |
| 01:00 | 28 | |
| Saturday, 10/3 | ||
| 00:00 | 33.9 | |
| 23:00 | 34.5 | |
| 22:00 | 28.1 | |
| 21:00 | 28.5 | |
| 20:00 | 26.2 | |
| 19:00 | 19.1 | |
| 18:00 | 18.7 | |
| 17:00 | 19.1 | |
| 16:00 | 19 | |
| 15:00 | 20.9 | |
| 14:00 | 25.5 | |
| 13:00 | 30.8 | |
| 12:00 | 40.6 | |
| 11:00 | 49.2 | |
| 10:00 | 29.7 | |
| 09:00 | 22.2 | |
| 08:00 | 13.7 | |
| 07:00 | 12 | |
| 06:00 | 16.7 | |
| 05:00 | 18.1 | |
| 04:00 | 24.7 | |
| 03:00 | 34.5 | |
| 02:00 | 36.4 | |
| 01:00 | 33.9 | |
| Friday, 10/2 | ||
| 00:00 | 34.3 | |
| 23:00 | 34 | |
| 22:00 | 32.6 | |
| 21:00 | 28.1 | |
| 20:00 | 22.2 | |
| 19:00 | 27.8 | |
| 18:00 | 22.4 | |
| 17:00 | 27.3 | |
| 16:00 | 16.6 | |
| 15:00 | 15.2 | |
| 14:00 | 19.1 | |
| 13:00 | 28.3 | |
| 12:00 | 42.1 | |
| 11:00 | 44.9 | |
| 10:00 | 40.4 | |
| 09:00 | 37.6 | |
| 08:00 | 18.1 | |
| 07:00 | 14.2 | |
| 06:00 | 14.4 | |
| 05:00 | 17.2 | |
| 04:00 | 21.5 | |
| 03:00 | 19.3 | |
| 02:00 | 23.9 | |
| 01:00 | 26.4 | |
| Thursday, 10/1 | ||
| 00:00 | 28.9 | |
| 23:00 | 32.7 | |
| 22:00 | 26.9 | |
| 21:00 | 26.1 | |
| 20:00 | 24.2 | |
| 19:00 | 22 | |
| 18:00 | 26.5 | |
| 17:00 | 29.4 | |
| 16:00 | 23.7 | |
| 15:00 | 16.8 | |
| 14:00 | 17.2 | |
| 13:00 | 21.5 | |
| 12:00 | 40.9 | |
| 11:00 | 44.7 | |
| 10:00 | 44.7 | |
| 09:00 | 30.3 | |
| 08:00 | 16.6 | |
| 07:00 | 12.3 | |
| 06:00 | 11.8 | |
| 05:00 | 14.8 | |
| 04:00 | 18.4 | |
| 03:00 | 20.9 | |
| 02:00 | 25.7 | |
| 01:00 | 32 | |
| Wednesday, 9/30 | ||
| 00:00 | 30.1 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 36.8 | provisional |
| Mon, 10/5 | 32.1 | provisional |
| Sun, 10/4 | 25.6 | provisional |
| Sat, 10/3 | 26.5 | provisional |
| Fri, 10/2 | 26.2 | provisional |
| Thu, 10/1 | 25.4 | provisional |
| Wed, 9/30 | 27.6 | provisional |
| Tue, 9/29 | 23.1 | provisional |
| Mon, 9/28 | 19.5 | provisional |
| Sun, 9/27 | 14.3 | provisional |
| Sat, 9/26 | 20.4 | provisional |
| Fri, 9/25 | 19.3 | provisional |
| Thu, 9/24 | 19.1 | provisional |
| Wed, 9/23 | 16.6 | provisional |
| Tue, 9/22 | 27.4 | provisional |
| Mon, 9/21 | 33 | provisional |
| Sun, 9/20 | 21 | provisional |
| Sat, 9/19 | 23 | provisional |
| Fri, 9/18 | 30.5 | provisional |
| Thu, 9/17 | 23.7 | provisional |
| Wed, 9/16 | 26 | provisional |
| Tue, 9/15 | 21 | provisional |
| Mon, 9/14 | 19.5 | provisional |
| Sun, 9/13 | 18.1 | provisional |
| Sat, 9/12 | 21.4 | provisional |
| Fri, 9/11 | 47.2 | provisional |
| Thu, 9/10 | 41.6 | provisional |
| Wed, 9/9 | 33.6 | provisional |
| Tue, 9/8 | 38.9 | provisional |
| Mon, 9/7 | 23 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 28.8 | 18.4 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 25.6 | 21.5 | measured in 100 % of hours · provisional |
| August 2026 | 27.6 | 19.7 | measured in 100 % of hours · provisional |
| July 2026 | 19.9 | 22.6 | measured in 100 % of hours · provisional |
| June 2026 | 19.3 | 26.6 | measured in 100 % of hours · provisional |
| May 2026 | 20.9 | 20.1 | measured in 100 % of hours · provisional |
| April 2026 | 25.5 | 27.7 | measured in 100 % of hours · provisional |
| March 2026 | 38.2 | 44 | measured in 100 % of hours · provisional |
| February 2026 | too few readings | 52.2 | 28 days without data from the station |
| January 2026 | too few readings | 70.8 | 31 days without data from the station |
| December 2025 | 50.5 | 50.2 | measured in 100 % of hours · verified |
| November 2025 | 36.8 | 59.8 | measured in 100 % of hours · verified |
PM10 by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days above 50 µg/m³ (allowed 35) | ≥ 5² | 72 above the number allowed | 81 above the number allowed |
| Annual average, µg/m³ (EU limit 40) | too few | 35.1 | 38.3 |
| Highest daily average, µg/m³ | 97March 4 | 144December 17 | 146January 15 |
| Highest hourly value, µg/m³ | 243March 4 | 326March 12 | 338December 19 |
| Hours measured | 79 % | 100 % | 100 % |
| Days without any reading from the station | 59 | 0 | 0 |
* 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.
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 87 such days.
- WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2025 there were 87 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 35 µg/m³.
- WHO 2021: annual average 15 µg/m³. Average in 2025: 35 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 |
|---|---|---|
| Dec 17, 2025 | 144 | 2.9 × |
| Jan 21, 2025 | 144 | 2.9 × |
| Jan 2, 2025 | 140 | 2.8 × |
| Jan 22, 2025 | 131 | 2.6 × |
| Jan 6, 2025 | 124 | 2.5 × |
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 8 % of hours · provisional
12
Last 7 daysµg/m³
measured in 100 % of hours · provisional
11.8
Last 30 daysµg/m³
measured in 100 % of hours · provisional
too few readings
Last 12 months
measured in 83 % of hours · 2 months with too few readings · provisional
Months of 2025
| Month | Highest day | No readings |
|---|---|---|
| January | 135 | 0 |
| February | 81 | 0 |
| March | 53 | 0 |
| April | 34 | 0 |
| May | 13 | 0 |
| June | 19 | 0 |
| July | 17 | 0 |
| August | 15 | 0 |
| September | 22 | 0 |
| October | 32 | 0 |
| November | 68 | 0 |
| December | 114 | 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 |
|---|---|---|
| Tuesday, 10/6 | ||
| 00:00 | 25.9 | |
| 23:00 | 26.1 | |
| 22:00 | 26.4 | |
| 21:00 | 30.9 | |
| 20:00 | 29.2 | |
| 19:00 | 15.1 | |
| 18:00 | 13.1 | |
| 17:00 | 8.9 | |
| 16:00 | 7.6 | |
| 15:00 | 11.8 | |
| 14:00 | 12.6 | |
| 13:00 | 15.3 | |
| 12:00 | 17.3 | |
| 11:00 | 16.7 | |
| 10:00 | 20.5 | |
| 09:00 | 16.7 | |
| 08:00 | 13.1 | |
| 07:00 | 11.8 | |
| 06:00 | 11.6 | |
| 05:00 | 11.6 | |
| 04:00 | 12.9 | |
| 03:00 | 15.6 | |
| 02:00 | 19.1 | |
| 01:00 | 24.2 | |
| Monday, 10/5 | ||
| 00:00 | 25.3 | |
| 23:00 | 27.3 | |
| 22:00 | 27.1 | |
| 21:00 | 22.6 | |
| 20:00 | 18 | |
| 19:00 | 10.8 | |
| 18:00 | 10.6 | |
| 17:00 | 10.4 | |
| 16:00 | 16.2 | |
| 15:00 | 9.9 | |
| 14:00 | 8.6 | |
| 13:00 | 10.4 | |
| 12:00 | 12.9 | |
| 11:00 | 13.9 | |
| 10:00 | 16.4 | |
| 09:00 | 16.4 | |
| 08:00 | 13.2 | |
| 07:00 | 11.5 | |
| 06:00 | 10.2 | |
| 05:00 | 11.7 | |
| 04:00 | 12.6 | |
| 03:00 | 12.9 | |
| 02:00 | 15.4 | |
| 01:00 | 17.8 | |
| Sunday, 10/4 | ||
| 00:00 | 19.3 | |
| 23:00 | 22.1 | |
| 22:00 | 27.1 | |
| 21:00 | 26.2 | |
| 20:00 | 16.8 | |
| 19:00 | 8.1 | |
| 18:00 | 5.9 | |
| 17:00 | 4.3 | |
| 16:00 | 5 | |
| 15:00 | 6 | |
| 14:00 | 8.7 | |
| 13:00 | 9.8 | |
| 12:00 | 10.2 | |
| 11:00 | 7.3 | |
| 10:00 | 8.7 | |
| 09:00 | 8.5 | |
| 08:00 | 7.1 | |
| 07:00 | 6.7 | |
| 06:00 | 7.1 | |
| 05:00 | 9.2 | |
| 04:00 | 9.5 | |
| 03:00 | 11.6 | |
| 02:00 | 10.3 | |
| 01:00 | 14.4 | |
| Saturday, 10/3 | ||
| 00:00 | 17.6 | |
| 23:00 | 13.1 | |
| 22:00 | 8.1 | |
| 21:00 | 8.1 | |
| 20:00 | 7.2 | |
| 19:00 | 5.5 | |
| 18:00 | 5.3 | |
| 17:00 | 5.2 | |
| 16:00 | 5.5 | |
| 15:00 | 6.3 | |
| 14:00 | 7.8 | |
| 13:00 | 9.5 | |
| 12:00 | 11.8 | |
| 11:00 | 17.3 | |
| 10:00 | 12 | |
| 09:00 | 10.6 | |
| 08:00 | 9.3 | |
| 07:00 | 8.2 | |
| 06:00 | 8.1 | |
| 05:00 | 9.1 | |
| 04:00 | 9.8 | |
| 03:00 | 13.5 | |
| 02:00 | 12.8 | |
| 01:00 | 9.2 | |
| Friday, 10/2 | ||
| 00:00 | 10.8 | |
| 23:00 | 10.3 | |
| 22:00 | 9 | |
| 21:00 | 8.2 | |
| 20:00 | 6.2 | |
| 19:00 | 5.5 | |
| 18:00 | 4.8 | |
| 17:00 | 4.8 | |
| 16:00 | 4.6 | |
| 15:00 | 5.4 | |
| 14:00 | 6.6 | |
| 13:00 | 9.4 | |
| 12:00 | 16 | |
| 11:00 | 18.5 | |
| 10:00 | 18.5 | |
| 09:00 | 17.7 | |
| 08:00 | 12.5 | |
| 07:00 | 10.1 | |
| 06:00 | 10.1 | |
| 05:00 | 9.9 | |
| 04:00 | 10.6 | |
| 03:00 | 9.6 | |
| 02:00 | 10.2 | |
| 01:00 | 10.9 | |
| Thursday, 10/1 | ||
| 00:00 | 10.6 | |
| 23:00 | 11.6 | |
| 22:00 | 8.9 | |
| 21:00 | 7.9 | |
| 20:00 | 6.7 | |
| 19:00 | 5.6 | |
| 18:00 | 5.4 | |
| 17:00 | 5.5 | |
| 16:00 | 4.9 | |
| 15:00 | 5.3 | |
| 14:00 | 6.1 | |
| 13:00 | 6.9 | |
| 12:00 | 17 | |
| 11:00 | 16.9 | |
| 10:00 | 17.8 | |
| 09:00 | 13.1 | |
| 08:00 | 11.4 | |
| 07:00 | 8.9 | |
| 06:00 | 8.3 | |
| 05:00 | 9.3 | |
| 04:00 | 9.7 | |
| 03:00 | 9.7 | |
| 02:00 | 11.2 | |
| 01:00 | 11.6 | |
| Wednesday, 9/30 | ||
| 00:00 | 11.5 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 17.3 | provisional |
| Mon, 10/5 | 15.1 | provisional |
| Sun, 10/4 | 11.3 | provisional |
| Sat, 10/3 | 9.6 | provisional |
| Fri, 10/2 | 10 | provisional |
| Thu, 10/1 | 9.6 | provisional |
| Wed, 9/30 | 11.1 | provisional |
| Tue, 9/29 | 11.3 | provisional |
| Mon, 9/28 | 10.1 | provisional |
| Sun, 9/27 | 8 | provisional |
| Sat, 9/26 | 15 | provisional |
| Fri, 9/25 | 13.8 | provisional |
| Thu, 9/24 | 8.7 | provisional |
| Wed, 9/23 | 7 | provisional |
| Tue, 9/22 | 10.5 | provisional |
| Mon, 9/21 | 12.5 | provisional |
| Sun, 9/20 | 8.6 | provisional |
| Sat, 9/19 | 11.6 | provisional |
| Fri, 9/18 | 13 | provisional |
| Thu, 9/17 | 10 | provisional |
| Wed, 9/16 | 13.8 | provisional |
| Tue, 9/15 | 14.6 | provisional |
| Mon, 9/14 | 7.8 | provisional |
| Sun, 9/13 | 8.4 | provisional |
| Sat, 9/12 | 12.1 | provisional |
| Fri, 9/11 | 17.6 | provisional |
| Thu, 9/10 | 15.2 | provisional |
| Wed, 9/9 | 14.3 | provisional |
| Tue, 9/8 | 19.7 | provisional |
| Mon, 9/7 | 6.9 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 12.1 | 14.5 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 11 | 9.7 | measured in 100 % of hours · provisional |
| August 2026 | 11.3 | 9 | measured in 100 % of hours · provisional |
| July 2026 | 9 | 10.4 | measured in 100 % of hours · provisional |
| June 2026 | 9.3 | 11.2 | measured in 100 % of hours · provisional |
| May 2026 | 10.1 | 10.4 | measured in 100 % of hours · provisional |
| April 2026 | 14.8 | 16.5 | measured in 100 % of hours · provisional |
| March 2026 | 25.5 | 29.4 | measured in 100 % of hours · provisional |
| February 2026 | too few readings | 45.5 | 28 days without data from the station |
| January 2026 | too few readings | 60.9 | 31 days without data from the station |
| December 2025 | 41.4 | 44.5 | measured in 99 % of hours · verified |
| November 2025 | 27.2 | 46.4 | measured in 96 % of hours · verified |
PM2.5 by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Annual average, µg/m³ (EU limit 25) | too few | 24.2 | 25.2 above the number allowed |
| Highest daily average, µg/m³ | 60March 4 | 135January 21 | 123January 15 |
| Highest hourly value, µg/m³ | 142March 4 | 248January 6 | 246January 14 |
| Hours measured | 79 % | 99 % | 98 % |
| Days without any reading from the station | 59 | 0 | 0 |
* 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.
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 121 such days.
- WHO 2021: daily 15 µg/m³, at most three to four days a year. In 2025 there were 179 such days.
- EU from 2030: annual average 10 µg/m³. Average in 2025: 24 µg/m³.
- WHO 2021: annual average 5 µg/m³. Average in 2025: 24 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
77.2
Nowµg/m³
Measured at 21:00
42.3
Last 24 hoursµg/m³
measured in 96 % of hours · provisional
21.5
Last 7 daysµg/m³
measured in 99 % of hours · provisional
17.8
Last 30 daysµg/m³
measured in 99 % of hours · provisional
too few readings
Last 12 months
measured in 82 % of hours · 2 months with too few readings · provisional
Days in 2025: NO₂, at least one hour above 200 µg/m³
No measured day above the limit.
- above the limit
- below the limit
- too few readings for the day
- no NO₂ data in the EEA database
Months of 2025
| Month | Days with an hour above 200 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 107 | 0 |
| February | 0 | 0 | 85 | 0 |
| March | 0 | 0 | 107 | 0 |
| April | 0 | 0 | 29 | 0 |
| May | 0 | 0 | 21 | 0 |
| June | 0 | 0 | 20 | 0 |
| July | 0 | 0 | 24 | 0 |
| August | 0 | 0 | 24 | 0 |
| September | 0 | 0 | 22 | 0 |
| October | 0 | 0 | 35 | 0 |
| November | 0 | 0 | 39 | 0 |
| December | 0 | 0 | 41 | 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 | 77.2 | |
| 20:00 | 101.7 | |
| 19:00 | 89.4 | |
| 18:00 | 94.8 | |
| 17:00 | 73.5 | |
| 16:00 | 39.9 | |
| 15:00 | 25.9 | |
| 14:00 | 31.9 | |
| 13:00 | 40.5 | |
| 12:00 | 45.8 | |
| 11:00 | 36.2 | |
| 10:00 | 36.4 | |
| 09:00 | 40.9 | |
| 08:00 | 24.6 | |
| 07:00 | 12.4 | |
| 06:00 | 9 | |
| 05:00 | 9.1 | |
| 04:00 | 11.9 | |
| 03:00 | 17.9 | |
| 02:00 | 22.1 | |
| 01:00 | 34.5 | |
| Tuesday, 10/6 | ||
| 00:00 | 43.6 | |
| 23:00 | 52.9 | |
| 22:00 | 57 | |
| 21:00 | 66.3 | |
| 20:00 | 91.1 | |
| 19:00 | 87.3 | |
| 18:00 | 64.9 | |
| 17:00 | 34.9 | |
| 16:00 | 25.5 | |
| 15:00 | 22.4 | |
| 14:00 | 17 | |
| 13:00 | 24.1 | |
| 12:00 | 25.6 | |
| 11:00 | 23.4 | |
| 10:00 | 34.6 | |
| 09:00 | 31.4 | |
| 08:00 | 17.6 | |
| 07:00 | 10.9 | |
| 06:00 | 7.4 | |
| 05:00 | 8.3 | |
| 04:00 | 8.7 | |
| 03:00 | 14.1 | |
| 02:00 | 32.2 | |
| 01:00 | 38.3 | |
| Monday, 10/5 | ||
| 00:00 | 34.6 | |
| 23:00 | 46.6 | |
| 21:00 | 66.9 | |
| 20:00 | 77.2 | |
| 19:00 | 49 | |
| 18:00 | 31.1 | |
| 17:00 | 19.8 | |
| 16:00 | 22.3 | |
| 15:00 | 18.4 | |
| 14:00 | 17.4 | |
| 13:00 | 20.1 | |
| 12:00 | 24.3 | |
| 11:00 | 20.8 | |
| 10:00 | 31.7 | |
| 09:00 | 30.5 | |
| 08:00 | 21.1 | |
| 07:00 | 10.7 | |
| 06:00 | 6.9 | |
| 05:00 | 12.4 | |
| 04:00 | 14.8 | |
| 03:00 | 15.1 | |
| 02:00 | 19.3 | |
| 01:00 | 25.2 | |
| Sunday, 10/4 | ||
| 00:00 | 35.6 | |
| 23:00 | 44.6 | |
| 22:00 | 60.9 | |
| 21:00 | 83.2 | |
| 20:00 | 68.3 | |
| 19:00 | 47.1 | |
| 18:00 | 35 | |
| 17:00 | 22.9 | |
| 16:00 | 12.5 | |
| 15:00 | 11.9 | |
| 14:00 | 15.4 | |
| 13:00 | 12.2 | |
| 12:00 | 13.5 | |
| 11:00 | 8.6 | |
| 10:00 | 10.3 | |
| 09:00 | 10 | |
| 08:00 | 9.8 | |
| 07:00 | 7.5 | |
| 06:00 | 8.1 | |
| 05:00 | 19.3 | |
| 04:00 | 13.5 | |
| 03:00 | 15.4 | |
| 02:00 | 14.5 | |
| 01:00 | 22.4 | |
| Saturday, 10/3 | ||
| 00:00 | 30.6 | |
| 23:00 | 29.1 | |
| 22:00 | 22.7 | |
| 21:00 | 17.8 | |
| 20:00 | 13.3 | |
| 19:00 | 7.6 | |
| 18:00 | 7.3 | |
| 17:00 | 8.9 | |
| 16:00 | 7.2 | |
| 15:00 | 7.1 | |
| 14:00 | 11.1 | |
| 13:00 | 15 | |
| 12:00 | 18.1 | |
| 11:00 | 28.8 | |
| 10:00 | 21.7 | |
| 09:00 | 20.6 | |
| 08:00 | 18.6 | |
| 07:00 | 8.7 | |
| 06:00 | 9.3 | |
| 05:00 | 12.9 | |
| 04:00 | 14.9 | |
| 03:00 | 27 | |
| 02:00 | 31.3 | |
| 01:00 | 15.2 | |
| Friday, 10/2 | ||
| 00:00 | 18.6 | |
| 23:00 | 26.1 | |
| 22:00 | 17.7 | |
| 20:00 | 6.9 | |
| 19:00 | 7.9 | |
| 18:00 | 7.4 | |
| 17:00 | 8.8 | |
| 16:00 | 7 | |
| 15:00 | 6.9 | |
| 14:00 | 6.9 | |
| 13:00 | 14.2 | |
| 12:00 | 24.1 | |
| 11:00 | 32.8 | |
| 10:00 | 32.9 | |
| 09:00 | 35.4 | |
| 08:00 | 21.7 | |
| 07:00 | 11.3 | |
| 06:00 | 10.4 | |
| 05:00 | 7.8 | |
| 04:00 | 8.9 | |
| 03:00 | 6.4 | |
| 02:00 | 9 | |
| 01:00 | 11.6 | |
| Thursday, 10/1 | ||
| 00:00 | 15.9 | |
| 23:00 | 22.4 | |
| 22:00 | 10.4 | |
| 21:00 | 6.6 | |
| 20:00 | 7.8 | |
| 19:00 | 7.8 | |
| 18:00 | 7.6 | |
| 17:00 | 7.1 | |
| 16:00 | 6.4 | |
| 15:00 | 6.3 | |
| 14:00 | 6.6 | |
| 13:00 | 6.6 | |
| 12:00 | 22.3 | |
| 11:00 | 26.6 | |
| 10:00 | 33.8 | |
| 09:00 | 32.1 | |
| 08:00 | 24.9 | |
| 07:00 | 11.7 | |
| 06:00 | 7 | |
| 05:00 | 7.5 | |
| 04:00 | 7.2 | |
| 03:00 | 9.7 | |
| 02:00 | 16.1 | |
| 01:00 | 28.2 | |
| Wednesday, 9/30 | ||
| 00:00 | 18.9 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 35 | provisional |
| Mon, 10/5 | 27.7 | provisional |
| Sun, 10/4 | 25.1 | provisional |
| Sat, 10/3 | 16.9 | provisional |
| Fri, 10/2 | 14.8 | provisional |
| Thu, 10/1 | 14.1 | provisional |
| Wed, 9/30 | 16.8 | provisional |
| Tue, 9/29 | 19.3 | provisional |
| Mon, 9/28 | 17.8 | provisional |
| Sun, 9/27 | 13.8 | provisional |
| Sat, 9/26 | 15 | provisional |
| Fri, 9/25 | 22.2 | provisional |
| Thu, 9/24 | 16.7 | provisional |
| Wed, 9/23 | 11.5 | provisional |
| Tue, 9/22 | 11.8 | provisional |
| Mon, 9/21 | 15.9 | provisional |
| Sun, 9/20 | 18.8 | provisional |
| Sat, 9/19 | 13.8 | provisional |
| Fri, 9/18 | 23.5 | provisional |
| Thu, 9/17 | 25.8 | provisional |
| Wed, 9/16 | 22.5 | provisional |
| Tue, 9/15 | 16.7 | provisional |
| Mon, 9/14 | 12.7 | provisional |
| Sun, 9/13 | 13.9 | provisional |
| Sat, 9/12 | 9.5 | provisional |
| Fri, 9/11 | 16.8 | provisional |
| Thu, 9/10 | 20.1 | provisional |
| Wed, 9/9 | 12.2 | provisional |
| Tue, 9/8 | 18.1 | provisional |
| Mon, 9/7 | 14.6 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 22.3 | 14.6 | measured in 99 % of hours · provisional · year before: same days |
| September 2026 | 16.8 | 13.4 | measured in 99 % of hours · provisional |
| August 2026 | 13.4 | 11.6 | measured in 99 % of hours · provisional |
| July 2026 | 13.4 | 13.9 | measured in 99 % of hours · provisional |
| June 2026 | 11.4 | 13.9 | measured in 98 % of hours · provisional |
| May 2026 | 13.9 | 12.1 | measured in 99 % of hours · provisional |
| April 2026 | 15.2 | 15 | measured in 99 % of hours · provisional |
| March 2026 | 17 | 54.4 | measured in 98 % of hours · provisional |
| February 2026 | too few readings | 61.3 | 28 days without data from the station |
| January 2026 | too few readings | 73.7 | 31 days without data from the station |
| December 2025 | 20.4 | 26 | measured in 92 % of hours · verified |
| November 2025 | 23.2 | 28 | measured in 99 % of hours · verified |
NO₂ by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Hours above 200 µg/m³ (allowed 18) | 0² | 0 | 0 |
| Hours above 400 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (EU limit 40) | too few | 27.7 | 20.9 |
| Highest daily average, µg/m³ | 37March 4 | 107January 3 | 61January 15 |
| Highest hourly value, µg/m³ | 99May 5 | 181March 6 | 127January 15 |
| Hours measured | 78 % | 98 % | 98 % |
| Days without any reading from the station | 59 | 0 | 0 |
* 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 2025 there were 70 such days.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2025 there were 108 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 28 µg/m³.
- WHO 2021: annual average 10 µg/m³. Average in 2025: 28 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.
Ozone O₃
11.4
Nowµg/m³
Measured at 21:00
40.7
Last 24 hoursµg/m³
measured in 96 % of hours · provisional
51.5
Last 7 daysµg/m³
measured in 99 % of hours · provisional
57.4
Last 30 daysµg/m³
measured in 99 % of hours · provisional
too few readings
Last 12 months
measured in 82 % of hours · 2 months with too few readings · provisional
Days in 2025: O₃, 8-hour average above 120 µg/m³
15 days above the limit.
- above the limit
- below the limit
- too few readings for the day
Days above the limit with values (15)
- Jun 12 127
- Jun 13 123
- Jun 24 125
- Jun 25 127
- Jun 27 130
- Jul 4 124
- Jul 6 127
- Jul 14 120
- Jul 21 121
- Jul 22 120
- Jul 24 131
- Jul 25 127
- Aug 3 127
- Aug 11 133
- Sep 6 121
Values in µg/m³, limit 120 µg/m³.
Months of 2025
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 59 | 0 |
| February | 0 | 89 | 0 |
| March | 0 | 103 | 0 |
| April | 0 | 104 | 0 |
| May | 0 | 113 | 0 |
| June | 5 above the number allowed | 130 | 0 |
| July | 7 above the number allowed | 131 | 0 |
| August | 2 above the number allowed | 133 | 0 |
| September | 1 above the number allowed | 121 | 0 |
| October | 0 | 66 | 0 |
| November | 0 | 50 | 0 |
| December | 0 | 46 | 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 | 11.4 | |
| 20:00 | 0.1 | |
| 19:00 | 16.4 | |
| 18:00 | 17.5 | |
| 17:00 | 51.6 | |
| 16:00 | 94.1 | |
| 15:00 | 106.8 | |
| 14:00 | 85.1 | |
| 13:00 | 61.4 | |
| 12:00 | 49.3 | |
| 11:00 | 44.1 | |
| 10:00 | 25.6 | |
| 09:00 | 7.7 | |
| 08:00 | 19.6 | |
| 07:00 | 37.4 | |
| 06:00 | 44.7 | |
| 05:00 | 50.2 | |
| 04:00 | 45.9 | |
| 03:00 | 41.1 | |
| 02:00 | 44.9 | |
| 01:00 | 31.4 | |
| Tuesday, 10/6 | ||
| 00:00 | 27.5 | |
| 23:00 | 21.4 | |
| 22:00 | 23 | |
| 21:00 | 22.5 | |
| 20:00 | 12.1 | |
| 19:00 | 22.1 | |
| 18:00 | 55.2 | |
| 17:00 | 89 | |
| 16:00 | 97.9 | |
| 15:00 | 103.9 | |
| 14:00 | 102.5 | |
| 13:00 | 81.8 | |
| 12:00 | 66.6 | |
| 11:00 | 53.1 | |
| 10:00 | 24.1 | |
| 09:00 | 19.5 | |
| 08:00 | 28.8 | |
| 07:00 | 38 | |
| 06:00 | 45.7 | |
| 05:00 | 44.8 | |
| 04:00 | 47.5 | |
| 03:00 | 44 | |
| 02:00 | 25.2 | |
| 01:00 | 18 | |
| Monday, 10/5 | ||
| 00:00 | 31.3 | |
| 23:00 | 22.6 | |
| 21:00 | 15.7 | |
| 20:00 | 13.9 | |
| 19:00 | 47.9 | |
| 18:00 | 67 | |
| 17:00 | 69.7 | |
| 16:00 | 90.3 | |
| 15:00 | 91 | |
| 14:00 | 84.3 | |
| 13:00 | 74 | |
| 12:00 | 60.1 | |
| 11:00 | 50 | |
| 10:00 | 18.7 | |
| 09:00 | 12.5 | |
| 08:00 | 20.1 | |
| 07:00 | 32.4 | |
| 06:00 | 40 | |
| 05:00 | 33.4 | |
| 04:00 | 32.2 | |
| 03:00 | 37 | |
| 02:00 | 34.8 | |
| 01:00 | 32.2 | |
| Sunday, 10/4 | ||
| 00:00 | 26.2 | |
| 23:00 | 17.9 | |
| 22:00 | 9.2 | |
| 21:00 | 0.1 | |
| 20:00 | 15.8 | |
| 19:00 | 44.5 | |
| 18:00 | 62.4 | |
| 17:00 | 82.5 | |
| 16:00 | 88.9 | |
| 15:00 | 88.6 | |
| 14:00 | 79.5 | |
| 13:00 | 76.5 | |
| 12:00 | 64.2 | |
| 11:00 | 62.5 | |
| 10:00 | 45.9 | |
| 09:00 | 36.8 | |
| 08:00 | 32.7 | |
| 07:00 | 36.1 | |
| 06:00 | 38.1 | |
| 05:00 | 23.3 | |
| 04:00 | 34.1 | |
| 03:00 | 37.8 | |
| 02:00 | 45.2 | |
| 01:00 | 36.9 | |
| Saturday, 10/3 | ||
| 00:00 | 33.2 | |
| 23:00 | 44 | |
| 22:00 | 59.5 | |
| 21:00 | 66.5 | |
| 20:00 | 75.1 | |
| 19:00 | 85.3 | |
| 18:00 | 88.7 | |
| 17:00 | 88.6 | |
| 16:00 | 89.9 | |
| 15:00 | 91.8 | |
| 14:00 | 90.3 | |
| 13:00 | 79.6 | |
| 12:00 | 65.3 | |
| 11:00 | 35.2 | |
| 10:00 | 29.3 | |
| 09:00 | 23.6 | |
| 08:00 | 21.9 | |
| 07:00 | 38.3 | |
| 06:00 | 42.1 | |
| 05:00 | 37.7 | |
| 04:00 | 40.4 | |
| 03:00 | 28.8 | |
| 02:00 | 30.1 | |
| 01:00 | 66.6 | |
| Friday, 10/2 | ||
| 00:00 | 64.8 | |
| 23:00 | 60.2 | |
| 22:00 | 74.3 | |
| 20:00 | 90.8 | |
| 19:00 | 91.2 | |
| 18:00 | 94.4 | |
| 17:00 | 92.6 | |
| 16:00 | 92.5 | |
| 15:00 | 92 | |
| 14:00 | 91.3 | |
| 13:00 | 79 | |
| 12:00 | 52.9 | |
| 11:00 | 30.8 | |
| 10:00 | 14.6 | |
| 09:00 | 5.2 | |
| 08:00 | 11.6 | |
| 07:00 | 28.4 | |
| 06:00 | 35.3 | |
| 05:00 | 46.4 | |
| 04:00 | 49.9 | |
| 03:00 | 61.6 | |
| 02:00 | 64.4 | |
| 01:00 | 66.6 | |
| Thursday, 10/1 | ||
| 00:00 | 67.1 | |
| 23:00 | 58.6 | |
| 22:00 | 78.1 | |
| 21:00 | 85.4 | |
| 20:00 | 86.2 | |
| 19:00 | 87.6 | |
| 18:00 | 88.4 | |
| 17:00 | 87.2 | |
| 16:00 | 87.2 | |
| 15:00 | 87.1 | |
| 14:00 | 84.9 | |
| 13:00 | 82.9 | |
| 12:00 | 50.1 | |
| 11:00 | 32.9 | |
| 10:00 | 12.9 | |
| 09:00 | 5.8 | |
| 08:00 | 4.2 | |
| 07:00 | 24.5 | |
| 06:00 | 36.6 | |
| 05:00 | 40.6 | |
| 04:00 | 47.7 | |
| 03:00 | 54.2 | |
| 02:00 | 51.8 | |
| 01:00 | 41.4 | |
| Wednesday, 9/30 | ||
| 00:00 | 56.6 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 81.3 | provisional |
| Mon, 10/5 | 73.3 | provisional |
| Sun, 10/4 | 75.6 | provisional |
| Sat, 10/3 | 86.2 | provisional |
| Fri, 10/2 | 92.1 | provisional |
| Thu, 10/1 | 86.7 | provisional |
| Wed, 9/30 | 84.2 | provisional |
| Tue, 9/29 | 76.3 | provisional |
| Mon, 9/28 | 86.1 | provisional |
| Sun, 9/27 | 79.4 | provisional |
| Sat, 9/26 | 68.7 | provisional |
| Fri, 9/25 | 42.9 | provisional |
| Thu, 9/24 | 68.8 | provisional |
| Wed, 9/23 | 58.3 | provisional |
| Tue, 9/22 | 68.5 | provisional |
| Mon, 9/21 | 89 | provisional |
| Sun, 9/20 | 113.4 | provisional |
| Sat, 9/19 | 105.6 | provisional |
| Fri, 9/18 | 108.9 | provisional |
| Thu, 9/17 | 96.1 | provisional |
| Wed, 9/16 | 81.6 | provisional |
| Tue, 9/15 | 86.5 | provisional |
| Mon, 9/14 | 95.3 | provisional |
| Sun, 9/13 | 88.2 | provisional |
| Sat, 9/12 | 104.2 | provisional |
| Fri, 9/11 | 118.6 | provisional |
| Thu, 9/10 | 128.7 | above the limit · provisional |
| Wed, 9/9 | 127.1 | above the limit · provisional |
| Tue, 9/8 | 115 | provisional |
| Mon, 9/7 | 103.1 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 51.7 | 31.3 | measured in 99 % of hours · provisional · year before: same days |
| September 2026 | 62.7 | 58.7 | measured in 99 % of hours · provisional |
| August 2026 | 84.8 | 80 | measured in 99 % of hours · provisional |
| July 2026 | 64.8 | 76.3 | measured in 90 % of hours · provisional |
| June 2026 | 67.3 | 79.5 | measured in 98 % of hours · provisional |
| May 2026 | 65.9 | 64.4 | measured in 99 % of hours · provisional |
| April 2026 | 65.1 | 56.9 | measured in 99 % of hours · provisional |
| March 2026 | 56.2 | 46.8 | measured in 98 % of hours · provisional |
| February 2026 | too few readings | 42.8 | 28 days without data from the station |
| January 2026 | too few readings | 24.2 | 31 days without data from the station |
| December 2025 | 15.2 | 22.1 | measured in 98 % of hours · verified |
| November 2025 | 14.8 | 23.1 | measured in 98 % of hours · verified |
O₃ by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days with 8-hour average above 120 µg/m³ (target value 25) | ≥ 12² | 15 | 28 |
| Annual average, µg/m³ | too few | 49.1 | 50.9 |
| Highest 8-hour average, µg/m³ | 138August 8 | 133August 11 | 145July 17 |
| Hours measured | 77 % | 98 % | 99 % |
| Days without any reading from the station | 59 | 0 | 0 |
* 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 2025
| Day | Highest 8 h | Times the limit |
|---|---|---|
| Aug 11, 2025 | 133 | 1.1 × |
| Jul 24, 2025 | 131 | 1.1 × |
| Jun 27, 2025 | 130 | 1.1 × |
| Jun 12, 2025 | 127 | 1.1 × |
| Jul 25, 2025 | 127 | 1.1 × |
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
8
Nowµg/m³
Measured at 21:00
7
Last 24 hoursµg/m³
measured in 96 % of hours · provisional
6
Last 7 daysµg/m³
measured in 99 % of hours · provisional
7.7
Last 30 daysµg/m³
measured in 99 % of hours · provisional
too few readings
Last 12 months
measured in 83 % of hours · 2 months with too few readings · provisional
Days in 2025: SO₂, daily average above 125 µg/m³
No measured day above the limit.
- above the limit
- below the limit
- too few readings for the day
- no SO₂ data in the EEA database
Months of 2025
| Month | Days above 125 | Hours above 350 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 23 | 0 |
| February | 0 | 0 | 18 | 0 |
| March | 0 | 0 | 12 | 0 |
| April | 0 | 0 | 11 | 0 |
| May | 0 | 0 | 10 | 0 |
| June | 0 | 0 | 13 | 0 |
| July | 0 | 0 | 13 | 0 |
| August | 0 | 0 | 11 | 0 |
| September | 0 | 0 | 12 | 0 |
| October | 0 | 0 | 11 | 0 |
| November | 0 | 0 | 18 | 0 |
| December | 0 | 0 | 26 | 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 | 8 | |
| 20:00 | 7.2 | |
| 19:00 | 7.6 | |
| 18:00 | 8 | |
| 17:00 | 7.8 | |
| 16:00 | 7.8 | |
| 15:00 | 7.8 | |
| 14:00 | 8.4 | |
| 13:00 | 10.9 | |
| 12:00 | 8.5 | |
| 11:00 | 7.3 | |
| 10:00 | 6.7 | |
| 09:00 | 5.4 | |
| 08:00 | 5 | |
| 07:00 | 5.5 | |
| 06:00 | 5.9 | |
| 05:00 | 5.7 | |
| 04:00 | 5.7 | |
| 03:00 | 6.3 | |
| 02:00 | 6 | |
| 01:00 | 5.9 | |
| Tuesday, 10/6 | ||
| 00:00 | 6.6 | |
| 23:00 | 6.2 | |
| 22:00 | 7 | |
| 21:00 | 6.4 | |
| 20:00 | 6.8 | |
| 19:00 | 7 | |
| 18:00 | 7.8 | |
| 17:00 | 7.8 | |
| 16:00 | 8.6 | |
| 15:00 | 11.3 | |
| 14:00 | 11.4 | |
| 13:00 | 9.2 | |
| 12:00 | 7.8 | |
| 11:00 | 7.7 | |
| 10:00 | 6.6 | |
| 09:00 | 5.5 | |
| 08:00 | 5.5 | |
| 07:00 | 5.4 | |
| 06:00 | 5.7 | |
| 05:00 | 5.6 | |
| 04:00 | 5.7 | |
| 03:00 | 5.7 | |
| 02:00 | 5.7 | |
| 01:00 | 6.2 | |
| Monday, 10/5 | ||
| 00:00 | 2.2 | |
| 23:00 | 6 | |
| 22:00 | 7 | |
| 21:00 | 7.1 | |
| 20:00 | 7.4 | |
| 19:00 | 6.2 | |
| 18:00 | 5.5 | |
| 17:00 | 6.4 | |
| 16:00 | 7.2 | |
| 15:00 | 7.5 | |
| 14:00 | 6.8 | |
| 13:00 | 6.5 | |
| 12:00 | 6.9 | |
| 11:00 | 6.3 | |
| 10:00 | 5.7 | |
| 09:00 | 5 | |
| 08:00 | 5.8 | |
| 07:00 | 5.6 | |
| 06:00 | 6.1 | |
| 05:00 | 5.9 | |
| 04:00 | 5.6 | |
| 03:00 | 5.9 | |
| 02:00 | 5.8 | |
| 01:00 | 5.7 | |
| Sunday, 10/4 | ||
| 00:00 | 5.5 | |
| 23:00 | 5.5 | |
| 22:00 | 6.1 | |
| 21:00 | 6.4 | |
| 20:00 | 6.1 | |
| 19:00 | 6.3 | |
| 18:00 | 5.9 | |
| 17:00 | 6.4 | |
| 16:00 | 6.2 | |
| 15:00 | 6.5 | |
| 14:00 | 6.3 | |
| 13:00 | 5.8 | |
| 12:00 | 6.4 | |
| 11:00 | 6.2 | |
| 10:00 | 6 | |
| 09:00 | 5.1 | |
| 08:00 | 5 | |
| 07:00 | 4.2 | |
| 06:00 | 4.9 | |
| 05:00 | 5 | |
| 04:00 | 4.8 | |
| 03:00 | 5.2 | |
| 02:00 | 5 | |
| 01:00 | 6 | |
| Saturday, 10/3 | ||
| 00:00 | 5.7 | |
| 23:00 | 6.1 | |
| 22:00 | 5.6 | |
| 21:00 | 4.8 | |
| 20:00 | 5.1 | |
| 19:00 | 5.3 | |
| 18:00 | 6.2 | |
| 17:00 | 6 | |
| 16:00 | 5.5 | |
| 15:00 | 6 | |
| 14:00 | 5.8 | |
| 13:00 | 5.9 | |
| 12:00 | 7 | |
| 11:00 | 6 | |
| 10:00 | 5.3 | |
| 08:00 | 2.3 | |
| 07:00 | 4.9 | |
| 06:00 | 5 | |
| 05:00 | 5.3 | |
| 04:00 | 5.5 | |
| 03:00 | 5.5 | |
| 02:00 | 5.4 | |
| 01:00 | 5.6 | |
| Friday, 10/2 | ||
| 00:00 | 5.7 | |
| 23:00 | 5.7 | |
| 22:00 | 6.1 | |
| 21:00 | 6.1 | |
| 20:00 | 5.3 | |
| 19:00 | 5.2 | |
| 18:00 | 5.8 | |
| 17:00 | 6.6 | |
| 16:00 | 6.3 | |
| 15:00 | 6.2 | |
| 14:00 | 6.2 | |
| 13:00 | 6.9 | |
| 12:00 | 6.9 | |
| 11:00 | 6.8 | |
| 10:00 | 6 | |
| 09:00 | 6 | |
| 08:00 | 5.4 | |
| 07:00 | 5.5 | |
| 06:00 | 5.6 | |
| 05:00 | 5.7 | |
| 04:00 | 5.7 | |
| 03:00 | 5.6 | |
| 02:00 | 5.6 | |
| 01:00 | 5.7 | |
| Thursday, 10/1 | ||
| 00:00 | 5.7 | |
| 23:00 | 5.6 | |
| 22:00 | 5.7 | |
| 21:00 | 5.8 | |
| 20:00 | 5.9 | |
| 19:00 | 5.9 | |
| 18:00 | 5.8 | |
| 17:00 | 6 | |
| 16:00 | 5.9 | |
| 15:00 | 5.9 | |
| 14:00 | 5.8 | |
| 13:00 | 6.2 | |
| 12:00 | 6.8 | |
| 11:00 | 6.7 | |
| 10:00 | 6.1 | |
| 09:00 | 6 | |
| 08:00 | 5.6 | |
| 07:00 | 5.5 | |
| 06:00 | 5.4 | |
| 05:00 | 5.2 | |
| 04:00 | 5.4 | |
| 03:00 | 5.1 | |
| 02:00 | 5.4 | |
| 01:00 | 6.2 | |
| Wednesday, 9/30 | ||
| 00:00 | 6.3 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 7.1 | provisional |
| Mon, 10/5 | 6.1 | provisional |
| Sun, 10/4 | 5.7 | provisional |
| Sat, 10/3 | 5.5 | provisional |
| Fri, 10/2 | 5.9 | provisional |
| Thu, 10/1 | 5.8 | provisional |
| Wed, 9/30 | 6 | provisional |
| Tue, 9/29 | 6.2 | provisional |
| Mon, 9/28 | 7.5 | provisional |
| Sun, 9/27 | 6.3 | provisional |
| Sat, 9/26 | 6.6 | provisional |
| Fri, 9/25 | 7.3 | provisional |
| Thu, 9/24 | 7.4 | provisional |
| Wed, 9/23 | 7.3 | provisional |
| Tue, 9/22 | 8.1 | provisional |
| Mon, 9/21 | 10.4 | provisional |
| Sun, 9/20 | 10.5 | provisional |
| Sat, 9/19 | 11 | provisional |
| Fri, 9/18 | 11.5 | provisional |
| Thu, 9/17 | 8 | provisional |
| Wed, 9/16 | 7.1 | provisional |
| Tue, 9/15 | 7.4 | provisional |
| Mon, 9/14 | 7.2 | provisional |
| Sun, 9/13 | 6.2 | provisional |
| Sat, 9/12 | 7.9 | provisional |
| Fri, 9/11 | 10.5 | provisional |
| Thu, 9/10 | 10.6 | provisional |
| Wed, 9/9 | 11 | provisional |
| Tue, 9/8 | 7.3 | provisional |
| Mon, 9/7 | 5.8 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 6 | 8.2 | measured in 99 % of hours · provisional · year before: same days |
| September 2026 | 7.9 | 8.9 | measured in 99 % of hours · provisional |
| August 2026 | 7.4 | 8.9 | measured in 99 % of hours · provisional |
| July 2026 | 6.3 | 9.7 | measured in 99 % of hours · provisional |
| June 2026 | 6.1 | 8.5 | measured in 99 % of hours · provisional |
| May 2026 | 5.8 | 7.3 | measured in 99 % of hours · provisional |
| April 2026 | 6.1 | 7.3 | measured in 99 % of hours · provisional |
| March 2026 | 8.4 | 7.8 | measured in 99 % of hours · provisional |
| February 2026 | too few readings | 7.2 | 28 days without data from the station |
| January 2026 | too few readings | 8.1 | 31 days without data from the station |
| December 2025 | 9.1 | 12.1 | measured in 93 % of hours · verified |
| November 2025 | 8.5 | 9.6 | measured in 99 % of hours · verified |
SO₂ by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days above 125 µg/m³ (allowed 3) | 0² | 0 | 0 |
| Hours above 350 µg/m³ (allowed 24) | 0² | 0 | 0 |
| Hours above 500 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ | too few | 8.3 | 8.2 |
| Highest daily average, µg/m³ | 13March 3 | 26December 27 | 31January 12 |
| Highest hourly value, µg/m³ | 32September 19 | 70November 17 | 72March 18 |
| Hours measured | 78 % | 98 % | 99 % |
| Days without any reading from the station | 59 | 0 | 0 |
* 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 2025 there were 0 such days.
- WHO 2021: daily 40 µg/m³, at most three to four days a year. In 2025 there were 0 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 8 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: 59
1 outage, 1,416 hours in total in the last 12 months.
Timeline of outages from October 7, 2025 to today
| From | To | Duration |
|---|---|---|
| Jan 1, 2026 00:00 | Mar 1, 2026 00:00 | 59 days |
Calculated from the hourly values the EEA publishes. If late values arrive afterwards, an outage gets shorter or disappears.
Where the data comes from
Measured by Agency for Environmental Protection. 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 EU limits come from Directive 2008/50/EC. Here they serve as a yardstick for comparison. 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.
samoEKO is a brand of samoLabs, Juelich.