Air at the Karpos station
Karpoš, North Macedonia
Network: Ministry of Environment and Physical Planning · Station code: MK0048A
This year, up to yesterday (October 6)
at least
30 days
with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.
The target value allows 25 such days a year, averaged over three years.
In 2025: 17 days above the limit, the target value allows 25 as a three-year average.
29 days
with a daily average of particulate matter PM10 above the EU limit of 50 µg/m³.
35 days are allowed in the whole year.
Worst day: August 24, 2026, O₃ 159 µg/m³ as a daily average, 1.3 times the limit.
Daily average for 244 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
Moderate
Air now · Measured at 22:00
Latest values
Latest value: 22:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 81.7 µg/m³ | Moderate |
| O₃ | 7.3 µg/m³ | Good |
| SO₂ | 4.6 µg/m³ | Good |
How the air is changing
Over the last seven days there was more PM10 and PM2.5 in the air than the week before.
- PM10: average 34 µg/m³, week before 21.8 µg/m³
- PM2.5: average 17.1 µg/m³, week before 11.6 µg/m³
- NO₂: too few readings to compare
- O₃: average 36.4 µg/m³, week before 38.6 µg/m³
- SO₂: average 3.5 µg/m³, week before 3.9 µg/m³
Last month there was less PM10 and O₃ in the air than the month before.
- PM10: average 29.6 µg/m³, month before 41.6 µg/m³
- PM2.5: average 14.7 µg/m³, month before 14.4 µg/m³
- NO₂: too few readings to compare
- O₃: average 55.2 µg/m³, month before 82.1 µg/m³
- SO₂: average 4 µg/m³, month before 4 µg/m³
Show
Particulate matter PM10
81.7
Nowµg/m³
Measured at 22:00
48.8
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
34
Last 7 daysµg/m³
measured in 100 % of hours · provisional
29.7
Last 30 daysµg/m³
measured in 100 % of hours · provisional
34
Last 12 monthsµg/m³
measured in 97 % of hours · provisional
Days in 2025: PM10, daily average above 50 µg/m³
59 days above the limit. 2 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 (59)
- Jan 1 103
- Jan 2 106
- Jan 3 132
- Jan 6 86
- Jan 7 105
- Jan 8 72
- Jan 17 74
- Jan 18 67
- Jan 20 73
- Jan 21 97
- Jan 22 86
- Jan 23 53
- Jan 24 67
- Jan 25 89
- Jan 26 64
- Jan 27 67
- Jan 28 53
- Feb 1 61
- Feb 2 70
- Feb 6 52
- Feb 7 58
- Feb 8 61
- Feb 9 68
- Feb 10 68
- Feb 11 77
- Feb 12 68
- Feb 13 50
- Feb 14 56
- Feb 20 53
- Feb 21 67
- Feb 22 60
- Feb 23 53
- Feb 24 65
- Feb 25 65
- Feb 26 58
- Mar 6 54
- Mar 7 55
- Mar 8 54
- Mar 10 69
- Nov 16 56
- Nov 17 54
- Dec 2 79
- Dec 3 72
- Dec 10 66
- Dec 11 85
- Dec 12 56
- Dec 13 52
- Dec 14 60
- Dec 15 110
- Dec 16 136
- Dec 17 153
- Dec 18 181
- Dec 19 192
- Dec 20 161
- Dec 21 84
- Dec 22 56
- Dec 23 75
- Dec 24 57
- Dec 30 51
Values in µg/m³, limit 50 µg/m³.
Months of 2025
| Month | Days above 50 | Highest day | No readings |
|---|---|---|---|
| January | 17 above the number allowed | 132 | 0 |
| February | 18 above the number allowed | 77 | 0 |
| March | 4 above the number allowed | 69 | 0 |
| April | 0 | 30 | 0 |
| May | 0 | 35 | 0 |
| June | 0 | 30 | 0 |
| July | 0 | 47 | 0 |
| August | 0 | 37 | 0 |
| September | 0 | 32 | 0 |
| October | 0 | 38 | 2 |
| November | 2 above the number allowed | 56 | 0 |
| December | 18 above the number allowed | 192 | 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 | 63 | model estimate, not counted |
| 21:00 | 85.1 | |
| 20:00 | 66.8 | |
| 19:00 | 40.5 | |
| 18:00 | 35.1 | |
| 17:00 | 43.4 | |
| 16:00 | 36.1 | |
| 15:00 | 66 | |
| 14:00 | 44.9 | |
| 13:00 | 59 | |
| 12:00 | 62.7 | |
| 11:00 | 70 | |
| 10:00 | 65.1 | |
| 09:00 | 48.9 | |
| 08:00 | 31.5 | |
| 07:00 | 30.1 | |
| 06:00 | 29 | |
| 05:00 | 28.5 | |
| 04:00 | 35.7 | |
| 03:00 | 41.6 | |
| 02:00 | 63.1 | |
| 01:00 | 39.3 | |
| Tuesday, 10/6 | ||
| 00:00 | 51.4 | |
| 23:00 | 59.4 | |
| 22:00 | 86.4 | |
| 21:00 | 81.6 | |
| 20:00 | 52.5 | |
| 19:00 | 26.5 | |
| 18:00 | 24.7 | |
| 17:00 | 31.8 | |
| 16:00 | 25.7 | |
| 15:00 | 67.5 | |
| 14:00 | 47.2 | |
| 13:00 | 51.9 | |
| 12:00 | 54.8 | |
| 11:00 | 54.2 | |
| 10:00 | 59.6 | |
| 09:00 | 50.1 | |
| 08:00 | 30.6 | |
| 07:00 | 27.4 | |
| 06:00 | 31.4 | |
| 05:00 | 29.4 | |
| 04:00 | 31.3 | |
| 03:00 | 40.3 | |
| 02:00 | 38.7 | |
| 01:00 | 35.8 | |
| Monday, 10/5 | ||
| 00:00 | 59.8 | |
| 23:00 | 68.4 | |
| 22:00 | 87.5 | |
| 21:00 | 70.4 | |
| 20:00 | 53.9 | |
| 19:00 | 20.9 | |
| 18:00 | 23 | |
| 17:00 | 31.4 | |
| 16:00 | 19.4 | |
| 15:00 | 53.8 | |
| 14:00 | 34.8 | |
| 13:00 | 32 | |
| 12:00 | 40.7 | |
| 11:00 | 50.8 | |
| 10:00 | 55 | |
| 09:00 | 36 | |
| 08:00 | 21.5 | |
| 07:00 | 20.5 | |
| 06:00 | 21.5 | |
| 05:00 | 23.6 | |
| 04:00 | 29.6 | |
| 03:00 | 29 | |
| 02:00 | 28.3 | |
| 01:00 | 29.8 | |
| Sunday, 10/4 | ||
| 00:00 | 31.7 | |
| 23:00 | 37.9 | |
| 22:00 | 61.3 | |
| 21:00 | 63.6 | |
| 20:00 | 48.1 | |
| 19:00 | 20.6 | |
| 18:00 | 10.2 | |
| 17:00 | 25.9 | |
| 16:00 | 27 | |
| 15:00 | 14.7 | |
| 14:00 | 17.2 | |
| 13:00 | 17.7 | |
| 12:00 | 18.7 | |
| 11:00 | 18.8 | |
| 10:00 | 21.3 | |
| 09:00 | 20.3 | |
| 08:00 | 19.1 | |
| 07:00 | 13.8 | |
| 06:00 | 15.7 | |
| 05:00 | 19.5 | |
| 04:00 | 24.1 | |
| 03:00 | 30.2 | |
| 02:00 | 30.7 | |
| 01:00 | 32.1 | |
| Saturday, 10/3 | ||
| 00:00 | 37.4 | |
| 23:00 | 37.7 | |
| 22:00 | 53.1 | |
| 21:00 | 45.5 | |
| 20:00 | 53.3 | |
| 19:00 | 21.5 | |
| 18:00 | 14.3 | |
| 17:00 | 15.8 | |
| 16:00 | 16.6 | |
| 15:00 | 17.3 | |
| 14:00 | 15.9 | |
| 13:00 | 19.5 | |
| 12:00 | 19.4 | |
| 11:00 | 23.3 | |
| 10:00 | 27.9 | |
| 09:00 | 27.6 | |
| 08:00 | 14.3 | |
| 07:00 | 14.3 | |
| 06:00 | 14.6 | |
| 05:00 | 20.5 | |
| 04:00 | 23.6 | |
| 03:00 | 32.5 | |
| 02:00 | 32.3 | |
| 01:00 | 33.6 | |
| Friday, 10/2 | ||
| 00:00 | 36.5 | |
| 23:00 | 42.1 | |
| 22:00 | 50.4 | |
| 21:00 | 57.7 | |
| 20:00 | 52.2 | |
| 19:00 | 26.5 | |
| 18:00 | 34.2 | |
| 17:00 | 48.6 | |
| 16:00 | 15.9 | |
| 15:00 | 80.7 | |
| 14:00 | 60 | |
| 13:00 | 14.6 | |
| 12:00 | 79.4 | |
| 11:00 | 32.1 | |
| 10:00 | 28.1 | |
| 09:00 | 24.1 | |
| 08:00 | 15.8 | |
| 07:00 | 11.8 | |
| 06:00 | 11.9 | |
| 05:00 | 14.2 | |
| 04:00 | 19.4 | |
| 03:00 | 22.8 | |
| 02:00 | 32.2 | |
| 01:00 | 28.1 | |
| Thursday, 10/1 | ||
| 00:00 | 30.7 | |
| 23:00 | 33 | |
| 22:00 | 58 | |
| 21:00 | 67.3 | |
| 20:00 | 50.6 | |
| 19:00 | 19.2 | |
| 18:00 | 10.5 | |
| 17:00 | 26 | |
| 16:00 | 12.4 | |
| 15:00 | 70.1 | |
| 14:00 | 66 | |
| 13:00 | 19.1 | |
| 12:00 | 33.4 | |
| 11:00 | 29.2 | |
| 10:00 | 47.4 | |
| 09:00 | 31.3 | |
| 08:00 | 14.7 | |
| 07:00 | 12.4 | |
| 06:00 | 13.1 | |
| 05:00 | 14.2 | |
| 04:00 | 23.9 | |
| 03:00 | 27.7 | |
| 02:00 | 27.1 | |
| 01:00 | 28.8 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 45.4 | provisional |
| Mon, 10/5 | 39.2 | provisional |
| Sun, 10/4 | 26.7 | provisional |
| Sat, 10/3 | 26.3 | provisional |
| Fri, 10/2 | 35 | provisional |
| Thu, 10/1 | 31.9 | provisional |
| Wed, 9/30 | 33.5 | provisional |
| Tue, 9/29 | 21.4 | provisional |
| Mon, 9/28 | 18 | provisional |
| Sun, 9/27 | 11.1 | provisional |
| Sat, 9/26 | 13.7 | provisional |
| Fri, 9/25 | 29.8 | provisional |
| Thu, 9/24 | 31.9 | provisional |
| Wed, 9/23 | 26.5 | provisional |
| Tue, 9/22 | 21.1 | provisional |
| Mon, 9/21 | 26.8 | provisional |
| Sun, 9/20 | 27.2 | provisional |
| Sat, 9/19 | 28.9 | provisional |
| Fri, 9/18 | 35.7 | provisional |
| Thu, 9/17 | 33.1 | provisional |
| Wed, 9/16 | 21.8 | provisional |
| Tue, 9/15 | 19.8 | provisional |
| Mon, 9/14 | 18.8 | provisional |
| Sun, 9/13 | 12.8 | provisional |
| Sat, 9/12 | 31.6 | provisional |
| Fri, 9/11 | 46.3 | provisional |
| Thu, 9/10 | 52.9 | above the limit · provisional |
| Wed, 9/9 | 48.7 | provisional |
| Tue, 9/8 | 39.6 | provisional |
| Mon, 9/7 | 35.7 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 34.1 | 8.4 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 29.6 | 20.2 | measured in 100 % of hours · provisional |
| August 2026 | 41.6 | 20.9 | measured in 100 % of hours · provisional |
| July 2026 | 24.3 | 22.3 | measured in 100 % of hours · provisional |
| June 2026 | 26 | 21.8 | measured in 100 % of hours · provisional |
| May 2026 | 20.3 | 16.4 | measured in 89 % of hours · provisional · 3 days without data from the station |
| April 2026 | 22.4 | 17.5 | measured in 93 % of hours · provisional · 1 day without data from the station |
| March 2026 | 36.3 | 31.5 | measured in 100 % of hours · provisional |
| February 2026 | 32.4 | 51.2 | measured in 100 % of hours · provisional |
| January 2026 | 51.6 | 59.3 | measured in 100 % of hours · provisional |
| December 2025 | 67.4 | 38.6 | measured in 99 % of hours · verified |
| November 2025 | 27.5 | 46.3 | 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) | 29 | 59 above the number allowed | 67 above the number allowed |
| Annual average, µg/m³ (EU limit 40) | 31.9* | 31.2 | 36 |
| Highest daily average, µg/m³ | 113January 16 | 192December 19 | 157January 2 |
| Highest hourly value, µg/m³ | 294August 16 | 280July 22 | 465September 3 |
| Hours measured | 98 % | 99 % | 97 % |
| Days without any reading from the station | 4 | 2 | 2 |
* 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.
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.
The column for 2023 is shown on wider screens.
Compared with the new EU rules and the WHO recommendation
This is not the yardstick for the verdict above, only a comparison. From 2030 the EU tightens its limits (Directive (EU) 2024/2881), and since 2021 the World Health Organization has recommended even lower values.
- EU from 2030: daily 45 µg/m³, 18 days allowed. In 2025 there were 71 such days.
- WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2025 there were 71 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 31 µg/m³.
- WHO 2021: annual average 15 µg/m³. Average in 2025: 31 µg/m³.
Sources: Directive (EU) 2024/2881, Annex I; WHO global air quality guidelines 2021, table 0.1. Checked against the texts on 7 October 2026.
The worst days of 2025
| Day | Average | Times the limit |
|---|---|---|
| Dec 19, 2025 | 192 | 3.8 × |
| Dec 18, 2025 | 181 | 3.6 × |
| Dec 20, 2025 | 161 | 3.2 × |
| Dec 17, 2025 | 153 | 3.1 × |
| Dec 16, 2025 | 136 | 2.7 × |
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 4 % of hours · provisional
17.1
Last 7 daysµg/m³
measured in 100 % of hours · provisional
15.2
Last 30 daysµg/m³
measured in 100 % of hours · provisional
24.8
Last 12 monthsµg/m³
measured in 97 % of hours · provisional
Months of 2025
| Month | Highest day | No readings |
|---|---|---|
| January | 143 | 0 |
| February | 67 | 0 |
| March | 52 | 0 |
| April | 22 | 0 |
| May | 16 | 0 |
| June | 20 | 0 |
| July | 21 | 0 |
| August | 27 | 0 |
| September | 26 | 0 |
| October | 38 | 2 |
| November | 61 | 0 |
| December | 159 | 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 | 30.1 | |
| 23:00 | 38.6 | |
| 22:00 | 42 | |
| 21:00 | 29.7 | |
| 20:00 | 21.3 | |
| 19:00 | 14.3 | |
| 18:00 | 11 | |
| 17:00 | 10.7 | |
| 16:00 | 12 | |
| 15:00 | 18.1 | |
| 14:00 | 21.5 | |
| 13:00 | 29.8 | |
| 12:00 | 34.2 | |
| 11:00 | 30.2 | |
| 10:00 | 30.1 | |
| 09:00 | 27.9 | |
| 08:00 | 25.1 | |
| 07:00 | 23.3 | |
| 06:00 | 25.7 | |
| 05:00 | 24.8 | |
| 04:00 | 26.3 | |
| 03:00 | 28.3 | |
| 02:00 | 30 | |
| 01:00 | 27.8 | |
| Monday, 10/5 | ||
| 00:00 | 37.4 | |
| 23:00 | 40.2 | |
| 22:00 | 39.8 | |
| 21:00 | 24.4 | |
| 20:00 | 16.9 | |
| 19:00 | 7.9 | |
| 18:00 | 13.9 | |
| 17:00 | 19.5 | |
| 16:00 | 10.5 | |
| 15:00 | 12.6 | |
| 14:00 | 17.4 | |
| 13:00 | 18.8 | |
| 12:00 | 25.9 | |
| 11:00 | 30.3 | |
| 10:00 | 27.9 | |
| 09:00 | 23.8 | |
| 08:00 | 20.6 | |
| 07:00 | 20 | |
| 06:00 | 20.4 | |
| 05:00 | 20.7 | |
| 04:00 | 20.7 | |
| 03:00 | 21.4 | |
| 02:00 | 20.4 | |
| 01:00 | 21.4 | |
| Sunday, 10/4 | ||
| 00:00 | 21.9 | |
| 23:00 | 23.7 | |
| 22:00 | 33.2 | |
| 21:00 | 28.6 | |
| 20:00 | 21.4 | |
| 19:00 | 9.2 | |
| 18:00 | 6 | |
| 17:00 | 6.8 | |
| 16:00 | 6.3 | |
| 15:00 | 6.9 | |
| 14:00 | 9.3 | |
| 13:00 | 10.5 | |
| 12:00 | 11.7 | |
| 11:00 | 12 | |
| 10:00 | 13.9 | |
| 09:00 | 15.2 | |
| 08:00 | 16.6 | |
| 07:00 | 13.8 | |
| 06:00 | 13.4 | |
| 05:00 | 13.8 | |
| 04:00 | 16.3 | |
| 03:00 | 18.8 | |
| 02:00 | 17.8 | |
| 01:00 | 18.2 | |
| Saturday, 10/3 | ||
| 00:00 | 18.5 | |
| 23:00 | 21 | |
| 22:00 | 22.9 | |
| 21:00 | 21.1 | |
| 20:00 | 18.8 | |
| 19:00 | 9.8 | |
| 18:00 | 7.6 | |
| 17:00 | 8.2 | |
| 16:00 | 6.6 | |
| 15:00 | 6 | |
| 14:00 | 5.6 | |
| 13:00 | 6.3 | |
| 12:00 | 9.1 | |
| 11:00 | 12.9 | |
| 10:00 | 14.7 | |
| 09:00 | 11.8 | |
| 08:00 | 10.6 | |
| 07:00 | 10.3 | |
| 06:00 | 12.1 | |
| 05:00 | 15 | |
| 04:00 | 18.2 | |
| 03:00 | 25.2 | |
| 02:00 | 26.3 | |
| 01:00 | 24.1 | |
| Friday, 10/2 | ||
| 00:00 | 18.3 | |
| 23:00 | 14.2 | |
| 22:00 | 13.3 | |
| 21:00 | 12.7 | |
| 20:00 | 10.1 | |
| 19:00 | 6.3 | |
| 18:00 | 7.1 | |
| 17:00 | 8.4 | |
| 16:00 | 6 | |
| 15:00 | 9.2 | |
| 14:00 | 8.3 | |
| 13:00 | 5 | |
| 12:00 | 12.8 | |
| 11:00 | 13.2 | |
| 10:00 | 13.5 | |
| 09:00 | 12.4 | |
| 08:00 | 11.2 | |
| 07:00 | 8.9 | |
| 06:00 | 10 | |
| 05:00 | 11.8 | |
| 04:00 | 14.8 | |
| 03:00 | 15.4 | |
| 02:00 | 20.5 | |
| 01:00 | 17.5 | |
| Thursday, 10/1 | ||
| 00:00 | 18.5 | |
| 23:00 | 18.9 | |
| 22:00 | 18.2 | |
| 21:00 | 15.9 | |
| 20:00 | 12.9 | |
| 19:00 | 6.2 | |
| 18:00 | 3.9 | |
| 17:00 | 5.1 | |
| 16:00 | 4.3 | |
| 15:00 | 8.6 | |
| 14:00 | 8 | |
| 13:00 | 8.5 | |
| 12:00 | 13.1 | |
| 11:00 | 14 | |
| 10:00 | 16.5 | |
| 09:00 | 13.6 | |
| 08:00 | 10.6 | |
| 07:00 | 10 | |
| 06:00 | 10.7 | |
| 05:00 | 13.1 | |
| 04:00 | 17.4 | |
| 03:00 | 18.7 | |
| 02:00 | 18.1 | |
| 01:00 | 19.5 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 25.5 | provisional |
| Mon, 10/5 | 22.2 | provisional |
| Sun, 10/4 | 15.2 | provisional |
| Sat, 10/3 | 14.3 | provisional |
| Fri, 10/2 | 11.7 | provisional |
| Thu, 10/1 | 12.7 | provisional |
| Wed, 9/30 | 18.1 | provisional |
| Tue, 9/29 | 12 | provisional |
| Mon, 9/28 | 9 | provisional |
| Sun, 9/27 | 8.7 | provisional |
| Sat, 9/26 | 12.6 | provisional |
| Fri, 9/25 | 19.3 | provisional |
| Thu, 9/24 | 12.8 | provisional |
| Wed, 9/23 | 7.2 | provisional |
| Tue, 9/22 | 5.7 | provisional |
| Mon, 9/21 | 18.2 | provisional |
| Sun, 9/20 | 17.9 | provisional |
| Sat, 9/19 | 15.8 | provisional |
| Fri, 9/18 | 18.4 | provisional |
| Thu, 9/17 | 15.7 | provisional |
| Wed, 9/16 | 10.8 | provisional |
| Tue, 9/15 | 11.7 | provisional |
| Mon, 9/14 | 11 | provisional |
| Sun, 9/13 | 8.7 | provisional |
| Sat, 9/12 | 15.8 | provisional |
| Fri, 9/11 | 20.1 | provisional |
| Thu, 9/10 | 28.2 | provisional |
| Wed, 9/9 | 25.5 | provisional |
| Tue, 9/8 | 19.7 | provisional |
| Mon, 9/7 | 11.4 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 16.9 | 9.1 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 14.7 | 12.4 | measured in 100 % of hours · provisional |
| August 2026 | 14.4 | 12.5 | measured in 100 % of hours · provisional |
| July 2026 | 10.6 | 10.5 | measured in 100 % of hours · provisional |
| June 2026 | 9.8 | 10.4 | measured in 100 % of hours · provisional |
| May 2026 | 10.3 | 9.8 | measured in 89 % of hours · provisional · 3 days without data from the station |
| April 2026 | 13.5 | 12.2 | measured in 93 % of hours · provisional · 1 day without data from the station |
| March 2026 | 27.5 | 24.9 | measured in 100 % of hours · provisional |
| February 2026 | 28.6 | 48.2 | measured in 100 % of hours · provisional |
| January 2026 | 50.9 | 63 | measured in 100 % of hours · provisional |
| December 2025 | 63.3 | 43.6 | measured in 99 % of hours · verified |
| November 2025 | 29.6 | 47 | measured in 100 % 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) | 20.1* | 26.5 above the number allowed | too few |
| Highest daily average, µg/m³ | 107January 15 | 159December 19 | 108December 20 |
| Highest hourly value, µg/m³ | 163January 15 | 224January 1 | 180December 31 |
| Hours measured | 98 % | 98 % | 73 % |
| Days without any reading from the station | 4 | 2 | 2 |
* 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 117 such days.
- WHO 2021: daily 15 µg/m³, at most three to four days a year. In 2025 there were 185 such days.
- EU from 2030: annual average 10 µg/m³. Average in 2025: 26 µg/m³.
- WHO 2021: annual average 5 µg/m³. Average in 2025: 26 µg/m³.
Sources: Directive (EU) 2024/2881, Annex I; WHO global air quality guidelines 2021, table 0.1. Checked against the texts on 7 October 2026.
Nitrogen dioxide NO₂
no measurement
Now
too few readings
Last 24 hours
measured in 0 % of hours
too few readings
Last 7 days
measured in 0 % of hours
too few readings
Last 30 days
measured in 0 % of hours
too few readings
Last 12 months
measured in 55 % of hours · provisional
Days in 2025: NO₂, at least one hour above 200 µg/m³
No measured day above the limit. 2 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Months of 2025
| Month | Days with an hour above 200 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 43 | 0 |
| February | 0 | 0 | 40 | 0 |
| March | 0 | 0 | 48 | 0 |
| April | 0 | 0 | 28 | 0 |
| May | 0 | 0 | 31 | 0 |
| June | 0 | 0 | 24 | 0 |
| July | 0 | 0 | 26 | 0 |
| August | 0 | 0 | 31 | 0 |
| September | 0 | 0 | 39 | 0 |
| October | 0 | 0 | 33 | 2 |
| November | 0 | 0 | 30 | 0 |
| December | 0 | 0 | 48 | 0 |
Values in µg/m³. ■ marks a month with at least one day above the limit; the number allowed applies to the whole year. “No readings”: days on which not a single reading came from the station.
There are no readings for this period.
There are no readings for this period.
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | no measurement | |
| Mon, 10/5 | no measurement | |
| Sun, 10/4 | no measurement | |
| Sat, 10/3 | no measurement | |
| Fri, 10/2 | no measurement | |
| Thu, 10/1 | no measurement | |
| Wed, 9/30 | no measurement | |
| Tue, 9/29 | no measurement | |
| Mon, 9/28 | no measurement | |
| Sun, 9/27 | no measurement | |
| Sat, 9/26 | no measurement | |
| Fri, 9/25 | no measurement | |
| Thu, 9/24 | no measurement | |
| Wed, 9/23 | no measurement | |
| Tue, 9/22 | no measurement | |
| Mon, 9/21 | no measurement | |
| Sun, 9/20 | no measurement | |
| Sat, 9/19 | no measurement | |
| Fri, 9/18 | no measurement | |
| Thu, 9/17 | no measurement | |
| Wed, 9/16 | no measurement | |
| Tue, 9/15 | no measurement | |
| Mon, 9/14 | no measurement | |
| Sun, 9/13 | no measurement | |
| Sat, 9/12 | no measurement | |
| Fri, 9/11 | no measurement | |
| Thu, 9/10 | no measurement | |
| Wed, 9/9 | no measurement | |
| Tue, 9/8 | no measurement | |
| Mon, 9/7 | no measurement |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | too few readings | 19.9 | year before: same days |
| September 2026 | too few readings | 24.1 | |
| August 2026 | too few readings | 19.6 | |
| July 2026 | too few readings | 15.6 | |
| June 2026 | too few readings | 15 | |
| May 2026 | too few readings | 18.2 | 3 days without data from the station |
| April 2026 | 19 | 15.7 | measured in 93 % of hours · provisional · 1 day without data from the station |
| March 2026 | 26.3 | 32.6 | measured in 100 % of hours · provisional |
| February 2026 | 24.3 | 29.9 | measured in 99 % of hours · provisional |
| January 2026 | 28 | 29.2 | measured in 100 % of hours · provisional |
| December 2025 | 26.2 | 32.4 | measured in 100 % of hours · verified |
| November 2025 | 22.3 | 37.3 | measured in 100 % 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 | 0² |
| Hours above 400 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (EU limit 40) | too few | 22.5 | too few |
| Highest daily average, µg/m³ | 44January 13 | 48March 7 | 54November 27 |
| Highest hourly value, µg/m³ | 83March 2 | 118December 19 | 102November 27 |
| Hours measured | 42 % | 98 % | 74 % |
| Days without any reading from the station | 4 | 2 | 2 |
* 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.
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 2025 there were 0 such days.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2025 there were 120 such days.
- EU from 2030: annual average 20 µg/m³. Average in 2025: 22 µg/m³.
- WHO 2021: annual average 10 µg/m³. Average in 2025: 22 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
7.3
Nowµg/m³
Measured at 22:00
29
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
36.4
Last 7 daysµg/m³
measured in 100 % of hours · provisional
47.7
Last 30 daysµg/m³
measured in 100 % of hours · provisional
39.7
Last 12 monthsµg/m³
measured in 90 % of hours · provisional
Days in 2025: O₃, 8-hour average above 120 µg/m³
17 days above the limit. 2 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no O₃ data in the EEA database
- no data from the station
Days above the limit with values (17)
- Jun 16 129
- Jun 23 121
- Jun 24 132
- Jun 25 134
- Jun 26 133
- Jul 4 134
- Jul 5 139
- Jul 6 131
- Jul 20 122
- Jul 21 123
- Jul 22 127
- Jul 23 129
- Jul 24 139
- Jul 25 123
- Jul 26 122
- Aug 3 121
- Aug 12 127
Values in µg/m³, limit 120 µg/m³.
Months of 2025
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 28 | 0 |
| February | 0 | 38 | 0 |
| March | 0 | 61 | 0 |
| April | 0 | 91 | 0 |
| May | 0 | 103 | 0 |
| June | 5 above the number allowed | 134 | 0 |
| July | 10 above the number allowed | 139 | 0 |
| August | 2 above the number allowed | 127 | 0 |
| September | 0 | 109 | 0 |
| October | 0 | 62 | 2 |
| November | 0 | 37 | 0 |
| December | 0 | 35 | 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 | 35 | model estimate, not counted |
| 21:00 | 7.8 | |
| 20:00 | 16.7 | |
| 19:00 | 37.2 | |
| 18:00 | 78.9 | |
| 17:00 | 102.2 | |
| 16:00 | 97.6 | |
| 15:00 | 84.5 | |
| 14:00 | 52.2 | |
| 13:00 | 35 | |
| 12:00 | 17.7 | |
| 11:00 | 16.3 | |
| 10:00 | 8.9 | |
| 09:00 | 5.6 | |
| 08:00 | 6.8 | |
| 07:00 | 13.6 | |
| 06:00 | 15.4 | |
| 05:00 | 12.1 | |
| 04:00 | 6.3 | |
| 03:00 | 4.4 | |
| 02:00 | 4.6 | |
| 01:00 | 7 | |
| Tuesday, 10/6 | ||
| 00:00 | 6.6 | |
| 23:00 | 4.5 | |
| 22:00 | 4.8 | |
| 21:00 | 4.7 | |
| 20:00 | 8.6 | |
| 19:00 | 54.8 | |
| 18:00 | 86.3 | |
| 17:00 | 103.9 | |
| 16:00 | 97.4 | |
| 15:00 | 79.9 | |
| 14:00 | 70.4 | |
| 13:00 | 46.7 | |
| 12:00 | 21.8 | |
| 11:00 | 16.5 | |
| 10:00 | 8.3 | |
| 09:00 | 5.3 | |
| 08:00 | 4.6 | |
| 07:00 | 7.1 | |
| 06:00 | 11.6 | |
| 05:00 | 10.6 | |
| 04:00 | 12.9 | |
| 03:00 | 11.3 | |
| 02:00 | 12.3 | |
| 01:00 | 17.8 | |
| Monday, 10/5 | ||
| 00:00 | 6.4 | |
| 23:00 | 4.6 | |
| 22:00 | 5.3 | |
| 21:00 | 9.7 | |
| 20:00 | 14.9 | |
| 19:00 | 61.3 | |
| 18:00 | 92.7 | |
| 17:00 | 108 | |
| 16:00 | 87.5 | |
| 15:00 | 77.3 | |
| 14:00 | 45.3 | |
| 13:00 | 35.4 | |
| 12:00 | 18.4 | |
| 11:00 | 8.1 | |
| 10:00 | 6.9 | |
| 09:00 | 5.1 | |
| 08:00 | 5.6 | |
| 07:00 | 13 | |
| 06:00 | 14.3 | |
| 05:00 | 13.1 | |
| 04:00 | 10.6 | |
| 03:00 | 7.6 | |
| 02:00 | 11.5 | |
| 01:00 | 12.9 | |
| Sunday, 10/4 | ||
| 00:00 | 21 | |
| 23:00 | 24.1 | |
| 22:00 | 8.1 | |
| 21:00 | 6.6 | |
| 20:00 | 10 | |
| 19:00 | 54.2 | |
| 18:00 | 86.9 | |
| 17:00 | 92.4 | |
| 16:00 | 92.1 | |
| 15:00 | 92.2 | |
| 14:00 | 81.9 | |
| 13:00 | 68.6 | |
| 12:00 | 51.4 | |
| 11:00 | 34.9 | |
| 10:00 | 21.6 | |
| 09:00 | 15.5 | |
| 08:00 | 14.3 | |
| 07:00 | 17.3 | |
| 06:00 | 18.6 | |
| 05:00 | 16.8 | |
| 04:00 | 11.7 | |
| 03:00 | 6.9 | |
| 02:00 | 6.8 | |
| 01:00 | 5.8 | |
| Saturday, 10/3 | ||
| 00:00 | 7.7 | |
| 23:00 | 15.3 | |
| 22:00 | 15.5 | |
| 21:00 | 13.3 | |
| 20:00 | 29.1 | |
| 19:00 | 70.6 | |
| 18:00 | 97.2 | |
| 17:00 | 98.1 | |
| 16:00 | 94.5 | |
| 15:00 | 92.7 | |
| 14:00 | 89.1 | |
| 13:00 | 82.4 | |
| 12:00 | 74.6 | |
| 11:00 | 51.3 | |
| 10:00 | 36.9 | |
| 09:00 | 31.9 | |
| 08:00 | 35.7 | |
| 07:00 | 34.1 | |
| 06:00 | 31.6 | |
| 05:00 | 26.7 | |
| 04:00 | 19 | |
| 03:00 | 7 | |
| 02:00 | 12.8 | |
| 01:00 | 16.4 | |
| Friday, 10/2 | ||
| 00:00 | 12.2 | |
| 23:00 | 21.8 | |
| 22:00 | 25.7 | |
| 21:00 | 34.2 | |
| 20:00 | 57.6 | |
| 19:00 | 83.8 | |
| 18:00 | 91 | |
| 17:00 | 98.5 | |
| 16:00 | 94.9 | |
| 15:00 | 92.7 | |
| 14:00 | 85.6 | |
| 13:00 | 80.2 | |
| 12:00 | 62.7 | |
| 11:00 | 42.3 | |
| 10:00 | 21.3 | |
| 09:00 | 14.9 | |
| 08:00 | 18.4 | |
| 07:00 | 31.5 | |
| 06:00 | 33.8 | |
| 05:00 | 26.2 | |
| 04:00 | 21 | |
| 03:00 | 14.1 | |
| 02:00 | 5 | |
| 01:00 | 6.1 | |
| Thursday, 10/1 | ||
| 00:00 | 9.8 | |
| 23:00 | 8.8 | |
| 22:00 | 4.9 | |
| 21:00 | 5.9 | |
| 20:00 | 13.1 | |
| 19:00 | 48.7 | |
| 18:00 | 80.9 | |
| 17:00 | 85 | |
| 16:00 | 85.2 | |
| 15:00 | 81.9 | |
| 14:00 | 74.2 | |
| 13:00 | 51.9 | |
| 12:00 | 31.9 | |
| 11:00 | 24.1 | |
| 10:00 | 12.3 | |
| 09:00 | 13.5 | |
| 08:00 | 21.4 | |
| 07:00 | 28.4 | |
| 06:00 | 27.3 | |
| 05:00 | 20.2 | |
| 04:00 | 9.6 | |
| 03:00 | 6.3 | |
| 02:00 | 8.6 | |
| 01:00 | 6.3 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 70.2 | provisional |
| Mon, 10/5 | 65.7 | provisional |
| Sun, 10/4 | 77.5 | provisional |
| Sat, 10/3 | 87.4 | provisional |
| Fri, 10/2 | 86.2 | provisional |
| Thu, 10/1 | 67.5 | provisional |
| Wed, 9/30 | 78.8 | provisional |
| Tue, 9/29 | 64.7 | provisional |
| Mon, 9/28 | 77.8 | provisional |
| Sun, 9/27 | 69.5 | provisional |
| Sat, 9/26 | 43.2 | provisional |
| Fri, 9/25 | 43.8 | provisional |
| Thu, 9/24 | 69.4 | provisional |
| Wed, 9/23 | 58.9 | provisional |
| Tue, 9/22 | 75.8 | provisional |
| Mon, 9/21 | 86.7 | provisional |
| Sun, 9/20 | 97.2 | provisional |
| Sat, 9/19 | 110.5 | provisional |
| Fri, 9/18 | 99.7 | provisional |
| Thu, 9/17 | 95 | provisional |
| Wed, 9/16 | 87.1 | provisional |
| Tue, 9/15 | 88.9 | provisional |
| Mon, 9/14 | 104.1 | provisional |
| Sun, 9/13 | 86.7 | provisional |
| Sat, 9/12 | 58 | provisional |
| Fri, 9/11 | 101 | provisional |
| Thu, 9/10 | 114.3 | provisional |
| Wed, 9/9 | 102.7 | provisional |
| Tue, 9/8 | 114.2 | provisional |
| Mon, 9/7 | 115.7 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 35.9 | 23.4 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 55.2 | 42.4 | measured in 100 % of hours · provisional |
| August 2026 | 82.1 | 66.6 | measured in 100 % of hours · provisional |
| July 2026 | too few readings | 76.9 | measured in 54 % of hours · provisional |
| June 2026 | 68.8 | 70.7 | measured in 100 % of hours · provisional |
| May 2026 | 55.1 | 42.1 | measured in 89 % of hours · provisional · 3 days without data from the station |
| April 2026 | 50.6 | 37.4 | measured in 93 % of hours · provisional · 1 day without data from the station |
| March 2026 | 31.7 | too few readings | measured in 100 % of hours · provisional |
| February 2026 | too few readings | 12.1 | measured in 55 % of hours · provisional |
| January 2026 | 12.4 | 6.4 | measured in 100 % of hours · provisional |
| December 2025 | 9.7 | 6.6 | measured in 100 % of hours · verified |
| November 2025 | 9.9 | 7.4 | measured in 100 % 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) | ≥ 30 | 17 | ≥ 22² |
| Annual average, µg/m³ | 49.3* | 35.3 | too few |
| Highest 8-hour average, µg/m³ | 159August 24 | 139July 5 | 143July 19 |
| Hours measured | 88 % | 93 % | 90 % |
| Days without any reading from the station | 4 | 2 | 2 |
* 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 |
|---|---|---|
| Jul 5, 2025 | 139 | 1.2 × |
| Jul 24, 2025 | 139 | 1.2 × |
| Jul 4, 2025 | 134 | 1.1 × |
| Jun 25, 2025 | 134 | 1.1 × |
| Jun 26, 2025 | 133 | 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
4.6
Nowµg/m³
Measured at 22:00
4
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
3.5
Last 7 daysµg/m³
measured in 99 % of hours · provisional
3.9
Last 30 daysµg/m³
measured in 100 % of hours · provisional
3
Last 12 monthsµg/m³
measured in 97 % of hours · provisional
Days in 2025: SO₂, daily average above 125 µg/m³
No measured day above the limit. 2 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Months of 2025
| Month | Days above 125 | Hours above 350 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 4 | 0 |
| February | 0 | 0 | 5 | 0 |
| March | 0 | 0 | 8 | 0 |
| April | 0 | 0 | 4 | 0 |
| May | 0 | 0 | 4 | 0 |
| June | 0 | 0 | 5 | 0 |
| July | 0 | 0 | 10 | 0 |
| August | 0 | 0 | 5 | 0 |
| September | 0 | 0 | 4 | 0 |
| October | 0 | 0 | 5 | 2 |
| November | 0 | 0 | 3 | 0 |
| December | 0 | 0 | 3 | 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 | 4.9 | |
| 20:00 | 5.3 | |
| 19:00 | 6 | |
| 18:00 | 7.2 | |
| 17:00 | 5.3 | |
| 16:00 | 4.8 | |
| 15:00 | 4.8 | |
| 14:00 | 5.3 | |
| 13:00 | 3.2 | |
| 12:00 | 3.9 | |
| 11:00 | 3.5 | |
| 10:00 | 3.2 | |
| 09:00 | 1.4 | |
| 08:00 | 1.8 | |
| 07:00 | 2.3 | |
| 06:00 | 3 | |
| 05:00 | 3.1 | |
| 04:00 | 3.3 | |
| 03:00 | 4.6 | |
| 02:00 | 3.5 | |
| 01:00 | 3.4 | |
| Tuesday, 10/6 | ||
| 00:00 | 3.3 | |
| 23:00 | 2.8 | |
| 22:00 | 4.8 | |
| 21:00 | 4.5 | |
| 20:00 | 5.1 | |
| 19:00 | 5.1 | |
| 18:00 | 5 | |
| 17:00 | 4.3 | |
| 16:00 | 3.6 | |
| 15:00 | 5 | |
| 14:00 | 5.2 | |
| 13:00 | 4.2 | |
| 12:00 | 3.3 | |
| 11:00 | 5.5 | |
| 10:00 | 4.3 | |
| 09:00 | 4.5 | |
| 08:00 | 4.6 | |
| 07:00 | 4.4 | |
| 06:00 | 4.3 | |
| 05:00 | 4.3 | |
| 04:00 | 3.8 | |
| 03:00 | 1.9 | |
| 02:00 | 4.2 | |
| 01:00 | 3.9 | |
| Monday, 10/5 | ||
| 00:00 | 3.7 | |
| 23:00 | 2.9 | |
| 22:00 | 4.9 | |
| 21:00 | 4.8 | |
| 20:00 | 3.5 | |
| 19:00 | 4.4 | |
| 18:00 | 4.3 | |
| 17:00 | 5.5 | |
| 16:00 | 4.5 | |
| 15:00 | 5.4 | |
| 14:00 | 5 | |
| 13:00 | 4.2 | |
| 12:00 | 3.9 | |
| 11:00 | 4.5 | |
| 10:00 | 3.8 | |
| 09:00 | 3.5 | |
| 08:00 | 3.9 | |
| 07:00 | 3.6 | |
| 06:00 | 3.6 | |
| 05:00 | 3 | |
| 04:00 | 2.5 | |
| 03:00 | 2.4 | |
| 02:00 | 2.2 | |
| 01:00 | 2.7 | |
| Sunday, 10/4 | ||
| 00:00 | 2.9 | |
| 23:00 | 2.7 | |
| 22:00 | 4.8 | |
| 21:00 | 3.6 | |
| 20:00 | 3.6 | |
| 19:00 | 5.5 | |
| 18:00 | 3.9 | |
| 17:00 | 3.8 | |
| 16:00 | 4.4 | |
| 15:00 | 4.3 | |
| 14:00 | 4.3 | |
| 13:00 | 3.5 | |
| 12:00 | 2.4 | |
| 11:00 | 2.8 | |
| 10:00 | 1.1 | |
| 09:00 | 1.7 | |
| 08:00 | 1 | |
| 07:00 | 2.7 | |
| 06:00 | 3 | |
| 05:00 | 3.1 | |
| 04:00 | 4.1 | |
| 03:00 | 4.5 | |
| 02:00 | 2 | |
| Saturday, 10/3 | ||
| 00:00 | 0.3 | |
| 23:00 | 3.3 | |
| 22:00 | 3.2 | |
| 21:00 | 2.8 | |
| 20:00 | 3.5 | |
| 19:00 | 4 | |
| 18:00 | 3.3 | |
| 17:00 | 2.9 | |
| 16:00 | 3.9 | |
| 15:00 | 3.8 | |
| 14:00 | 3 | |
| 13:00 | 3 | |
| 12:00 | 2.4 | |
| 11:00 | 3.9 | |
| 10:00 | 3.4 | |
| 09:00 | 3.5 | |
| 08:00 | 3.4 | |
| 07:00 | 3.6 | |
| 06:00 | 3.4 | |
| 05:00 | 2.6 | |
| 04:00 | 1.9 | |
| 03:00 | 2.3 | |
| 02:00 | 2.9 | |
| 01:00 | 3.9 | |
| Friday, 10/2 | ||
| 00:00 | 2.7 | |
| 23:00 | 3.6 | |
| 22:00 | 4.2 | |
| 21:00 | 4.2 | |
| 20:00 | 3.8 | |
| 19:00 | 2.6 | |
| 18:00 | 2.7 | |
| 17:00 | 3.7 | |
| 16:00 | 4 | |
| 15:00 | 2.5 | |
| 14:00 | 3.4 | |
| 13:00 | 2.8 | |
| 12:00 | 3.1 | |
| 11:00 | 3.1 | |
| 10:00 | 1.1 | |
| 09:00 | 2.2 | |
| 08:00 | 2 | |
| 07:00 | 2.8 | |
| 06:00 | 3.5 | |
| 05:00 | 3.4 | |
| 04:00 | 2.4 | |
| 03:00 | 2.7 | |
| 02:00 | 3.5 | |
| 01:00 | 2.8 | |
| Thursday, 10/1 | ||
| 00:00 | 3.7 | |
| 23:00 | 3.3 | |
| 22:00 | 3.5 | |
| 21:00 | 4.1 | |
| 20:00 | 4.4 | |
| 19:00 | 4.1 | |
| 18:00 | 3.2 | |
| 17:00 | 3.2 | |
| 16:00 | 3.2 | |
| 15:00 | 4.3 | |
| 14:00 | 3.4 | |
| 13:00 | 3.8 | |
| 12:00 | 3.8 | |
| 11:00 | 3.5 | |
| 10:00 | 2.5 | |
| 09:00 | 3.1 | |
| 08:00 | 4.3 | |
| 07:00 | 4 | |
| 06:00 | 2.7 | |
| 05:00 | 2.2 | |
| 04:00 | 3.5 | |
| 03:00 | 2 | |
| 02:00 | 0.6 | |
| 01:00 | 3.5 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 4.2 | provisional |
| Mon, 10/5 | 3.9 | provisional |
| Sun, 10/4 | 3.3 | provisional |
| Sat, 10/3 | 3.1 | provisional |
| Fri, 10/2 | 3 | provisional |
| Thu, 10/1 | 3.3 | provisional |
| Wed, 9/30 | 3.5 | provisional |
| Tue, 9/29 | 3.6 | provisional |
| Mon, 9/28 | 3.5 | provisional |
| Sun, 9/27 | 3.5 | provisional |
| Sat, 9/26 | 3.8 | provisional |
| Fri, 9/25 | 3.9 | provisional |
| Thu, 9/24 | 4.1 | provisional |
| Wed, 9/23 | 4.9 | provisional |
| Tue, 9/22 | 4.9 | provisional |
| Mon, 9/21 | 4.6 | provisional |
| Sun, 9/20 | 3.8 | provisional |
| Sat, 9/19 | 4.4 | provisional |
| Fri, 9/18 | 4 | provisional |
| Thu, 9/17 | 4.2 | provisional |
| Wed, 9/16 | 3.8 | provisional |
| Tue, 9/15 | 4.1 | provisional |
| Mon, 9/14 | 4.4 | provisional |
| Sun, 9/13 | 3.9 | provisional |
| Sat, 9/12 | 3.6 | provisional |
| Fri, 9/11 | 3.9 | provisional |
| Thu, 9/10 | 3.9 | provisional |
| Wed, 9/9 | 4.1 | provisional |
| Tue, 9/8 | 3.7 | provisional |
| Mon, 9/7 | 3.7 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 3.5 | 3.2 | measured in 99 % of hours · provisional · year before: same days |
| September 2026 | 4 | 3 | measured in 100 % of hours · provisional |
| August 2026 | 4 | 4 | measured in 99 % of hours · provisional |
| July 2026 | 3.4 | 5.3 | measured in 100 % of hours · provisional |
| June 2026 | 3.1 | 4 | measured in 99 % of hours · provisional |
| May 2026 | 2.7 | 3.3 | measured in 88 % of hours · provisional · 3 days without data from the station |
| April 2026 | 2.7 | 2.8 | measured in 92 % of hours · provisional · 1 day without data from the station |
| March 2026 | 2.5 | 4.2 | measured in 99 % of hours · provisional |
| February 2026 | 2.4 | 3.4 | measured in 99 % of hours · provisional |
| January 2026 | 2.9 | 3 | measured in 100 % of hours · provisional |
| December 2025 | 2.6 | 2.6 | measured in 99 % of hours · verified |
| November 2025 | 2.2 | 2.5 | 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) | 0 | 0 | 0 |
| Hours above 350 µg/m³ (allowed 24) | 0 | 0 | 0 |
| Hours above 500 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ | 3.1* | 3.4 | 2.2 |
| Highest daily average, µg/m³ | 9June 16 | 10July 24 | 7February 4 |
| Highest hourly value, µg/m³ | 19June 16 | 27July 24 | 32August 10 |
| Hours measured | 97 % | 98 % | 97 % |
| Days without any reading from the station | 4 | 2 | 2 |
* 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.
■ 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: 3 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: 8
2 outages, 193 hours in total in the last 12 months.
Timeline of outages from October 7, 2025 to today
| From | To | Duration |
|---|---|---|
| Apr 29, 2026 13:00 | May 4, 2026 12:00 | 5 days |
| Oct 23, 2025 10:00 | Oct 26, 2025 11:00 | 3 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 Ministry of Environment and Physical Planning. 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.