Air at the Slavonski Brod-1 station
Slavonski Brod, Croatia
Network: Državna mreža za trajno praćenje kvalitete zraka · Station code: HR0010A
This year, up to yesterday (October 6)
38 days
with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.
The target value allows 25 such days a year, averaged over three years.
Worst day: August 10, 2026, O₃ 149 µg/m³ as a daily average, 1.2 times the limit.
Daily average for 258 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
Poor
Air now · Measured at 19:00
Latest values
Latest value: 19:00
| Pollutant | Value | Level |
|---|---|---|
| NO₂ | 66.6 µg/m³ | Poor |
| O₃ | 19.3 µg/m³ | Good |
| SO₂ | 5.3 µg/m³ | Good |
How the air is changing
Over the last seven days there was more NO₂, O₃, and SO₂ in the air than the week before.
- NO₂: average 20 µg/m³, week before 11.7 µg/m³
- O₃: average 51 µg/m³, week before 43.6 µg/m³
- SO₂: average 7.2 µg/m³, week before 2.6 µg/m³
Last month there was less O₃ in the air than the month before.
- NO₂: average 12.4 µg/m³, month before 11.7 µg/m³
- O₃: average 54.8 µg/m³, month before 77.7 µg/m³
- SO₂: average 3.6 µg/m³, month before 4.2 µg/m³
Show
Nitrogen dioxide NO₂
66.6
Nowµg/m³
Measured at 19:00
19.8
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
20
Last 7 daysµg/m³
measured in 100 % of hours · provisional
14
Last 30 daysµg/m³
measured in 100 % of hours · provisional
14.6
Last 12 monthsµg/m³
measured in 97 % of hours · provisional
Days in 2025: NO₂, at least one hour above 200 µg/m³
No measured day above the limit. 116 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 | 46 | 0 |
| February | 0 | 0 | 36 | 0 |
| March | 0 | 0 | 43 | 5 |
| April | 0 | 0 | 23 | 3 |
| May | 0 | 0 | 17 | 1 |
| June | 30 | |||
| July | 31 | |||
| August | 31 | |||
| September | 0 | 0 | 16 | 15 |
| October | 0 | 0 | 31 | 0 |
| November | 0 | 0 | 37 | 0 |
| December | 0 | 0 | 34 | 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 | 19 | model estimate, not counted |
| 21:00 | 20 | model estimate, not counted |
| 20:00 | 84.4 | |
| 19:00 | 66.6 | |
| 18:00 | 35.6 | |
| 17:00 | 2.9 | |
| 16:00 | 2.2 | |
| 15:00 | 2.3 | |
| 14:00 | 2.5 | |
| 13:00 | 3.6 | |
| 12:00 | 6.3 | |
| 11:00 | 9.9 | |
| 10:00 | 15.8 | |
| 09:00 | 16.4 | |
| 08:00 | 23.9 | |
| 07:00 | 13.5 | |
| 06:00 | 11.2 | |
| 05:00 | 12.3 | |
| 04:00 | 12.5 | |
| 03:00 | 12.9 | |
| 02:00 | 24.2 | |
| 01:00 | 25.2 | |
| Tuesday, 10/6 | ||
| 00:00 | 28.2 | |
| 23:00 | 22.7 | |
| 22:00 | 19.7 | |
| 21:00 | 21.4 | |
| 20:00 | 65.3 | |
| 19:00 | 104.2 | |
| 18:00 | 29.2 | |
| 17:00 | 13.6 | |
| 16:00 | 13.3 | |
| 15:00 | 11.8 | |
| 14:00 | 11.7 | |
| 13:00 | 8.7 | |
| 12:00 | 6.4 | |
| 11:00 | 5.6 | |
| 10:00 | 6.3 | |
| 09:00 | 8.9 | |
| 08:00 | 11.5 | |
| 07:00 | 19.7 | |
| 06:00 | 10.7 | |
| 05:00 | 10.3 | |
| 04:00 | 15.5 | |
| 03:00 | 19.8 | |
| 02:00 | 23.8 | |
| 01:00 | 29.6 | |
| Monday, 10/5 | ||
| 00:00 | 31.6 | |
| 23:00 | 27.8 | |
| 22:00 | 16.5 | |
| 21:00 | 25.5 | |
| 20:00 | 46.3 | |
| 19:00 | 69.3 | |
| 18:00 | 50.7 | |
| 17:00 | 16.4 | |
| 16:00 | 10.5 | |
| 15:00 | 11.5 | |
| 14:00 | 12.3 | |
| 13:00 | 7.3 | |
| 12:00 | 5.1 | |
| 11:00 | 5.5 | |
| 10:00 | 6.4 | |
| 09:00 | 8.3 | |
| 08:00 | 10.8 | |
| 07:00 | 8.7 | |
| 06:00 | 15.6 | |
| 05:00 | 20.7 | |
| 04:00 | 9.4 | |
| 03:00 | 16.9 | |
| 02:00 | 15.5 | |
| 01:00 | 27.3 | |
| Sunday, 10/4 | ||
| 00:00 | 30.7 | |
| 23:00 | 28.9 | |
| 22:00 | 17.1 | |
| 21:00 | 31.4 | |
| 20:00 | 66.4 | |
| 19:00 | 57 | |
| 18:00 | 16.5 | |
| 17:00 | 9.9 | |
| 16:00 | 8.5 | |
| 15:00 | 8.4 | |
| 14:00 | 6.6 | |
| 13:00 | 10.4 | |
| 12:00 | 9.9 | |
| 11:00 | 6.4 | |
| 10:00 | 6.8 | |
| 09:00 | 7.4 | |
| 08:00 | 4.7 | |
| 07:00 | 8 | |
| 06:00 | 7.5 | |
| 05:00 | 15.6 | |
| 04:00 | 18.3 | |
| 03:00 | 11.9 | |
| 02:00 | 11.2 | |
| 01:00 | 19.4 | |
| Saturday, 10/3 | ||
| 00:00 | 18.6 | |
| 23:00 | 24.3 | |
| 22:00 | 32.6 | |
| 21:00 | 52.1 | |
| 20:00 | 72.7 | |
| 19:00 | 44.6 | |
| 18:00 | 16.9 | |
| 17:00 | 10.5 | |
| 16:00 | 8.8 | |
| 15:00 | 10.1 | |
| 14:00 | 10.7 | |
| 13:00 | 10.9 | |
| 12:00 | 12.7 | |
| 11:00 | 16.6 | |
| 10:00 | 22.3 | |
| 09:00 | 21.4 | |
| 08:00 | 15 | |
| 07:00 | 9.1 | |
| 06:00 | 18 | |
| 05:00 | 14.2 | |
| 04:00 | 16.7 | |
| 03:00 | 17.2 | |
| 02:00 | 22.2 | |
| 01:00 | 16 | |
| Friday, 10/2 | ||
| 00:00 | 18.6 | |
| 23:00 | 38.5 | |
| 22:00 | 39.8 | |
| 21:00 | 46.1 | |
| 20:00 | 80.3 | |
| 19:00 | 74.6 | |
| 18:00 | 27.8 | |
| 17:00 | 11.6 | |
| 16:00 | 9.5 | |
| 15:00 | 10.1 | |
| 14:00 | 9.7 | |
| 13:00 | 10.5 | |
| 12:00 | 12.2 | |
| 11:00 | 14.3 | |
| 10:00 | 20.7 | |
| 09:00 | 13.3 | |
| 08:00 | 12.8 | |
| 07:00 | 11 | |
| 06:00 | 12.6 | |
| 05:00 | 13.8 | |
| 04:00 | 13.2 | |
| 03:00 | 14 | |
| 02:00 | 18.2 | |
| 01:00 | 19.9 | |
| Thursday, 10/1 | ||
| 00:00 | 21.8 | |
| 23:00 | 18 | |
| 22:00 | 20.9 | |
| 21:00 | 25.5 | |
| 20:00 | 52.7 | |
| 19:00 | 34.4 | |
| 18:00 | 14.6 | |
| 17:00 | 11 | |
| 16:00 | 10.5 | |
| 15:00 | 9.4 | |
| 14:00 | 8.8 | |
| 13:00 | 9 | |
| 12:00 | 10.4 | |
| 11:00 | 11.8 | |
| 10:00 | 13.7 | |
| 09:00 | 20.5 | |
| 08:00 | 29.3 | |
| 07:00 | 23.8 | |
| 06:00 | 22.6 | |
| 05:00 | 14.3 | |
| 04:00 | 13.6 | |
| 03:00 | 15.1 | |
| 02:00 | 11.6 | |
| 01:00 | 18.7 | |
| Wednesday, 9/30 | ||
| 00:00 | 19.6 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 21.6 | provisional |
| Mon, 10/5 | 19.8 | provisional |
| Sun, 10/4 | 17.5 | provisional |
| Sat, 10/3 | 21.4 | provisional |
| Fri, 10/2 | 23 | provisional |
| Thu, 10/1 | 18.4 | provisional |
| Wed, 9/30 | 18.3 | provisional |
| Tue, 9/29 | 18.8 | provisional |
| Mon, 9/28 | 14.1 | provisional |
| Sun, 9/27 | 15.4 | provisional |
| Sat, 9/26 | 11.5 | provisional |
| Fri, 9/25 | 7.1 | provisional |
| Thu, 9/24 | 8.7 | provisional |
| Wed, 9/23 | 6.6 | provisional |
| Tue, 9/22 | 5.5 | provisional |
| Mon, 9/21 | 13.6 | provisional |
| Sun, 9/20 | 10.9 | provisional |
| Sat, 9/19 | 13.2 | provisional |
| Fri, 9/18 | 13.8 | provisional |
| Thu, 9/17 | 8.7 | provisional |
| Wed, 9/16 | 17.4 | provisional |
| Tue, 9/15 | 13.2 | provisional |
| Mon, 9/14 | 10.4 | provisional |
| Sun, 9/13 | 12.6 | provisional |
| Sat, 9/12 | 10.3 | provisional |
| Fri, 9/11 | 11.8 | provisional |
| Thu, 9/10 | 12.3 | provisional |
| Wed, 9/9 | 9.5 | provisional |
| Tue, 9/8 | 18.2 | provisional |
| Mon, 9/7 | 16 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 20.3 | 8.1 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 12.4 | too few readings | measured in 100 % of hours · provisional |
| August 2026 | 11.7 | measured in 100 % of hours · provisional | |
| July 2026 | 8.7 | measured in 100 % of hours · provisional | |
| June 2026 | 8.1 | measured in 96 % of hours · provisional | |
| May 2026 | 8.5 | 9 | measured in 99 % of hours · provisional |
| April 2026 | 13.1 | 12.6 | measured in 100 % of hours · provisional |
| March 2026 | too few readings | 23.5 | measured in 73 % of hours · provisional · 7 days without data from the station |
| February 2026 | 21 | 24.1 | measured in 100 % of hours · provisional |
| January 2026 | 24.3 | 22.6 | measured in 100 % of hours · provisional |
| December 2025 | 16.4 | 18.2 | measured in 99 % of hours · verified |
| November 2025 | 16 | 17.8 | 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) | 0 | 0² | 0 |
| Hours above 400 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (EU limit 40) | 14.2* | too few | 14.1 |
| Highest daily average, µg/m³ | 58January 15 | 46January 9 | 37January 22 |
| Highest hourly value, µg/m³ | 139January 15 | 123March 8 | 133January 5 |
| Hours measured | 96 % | 67 % | 95 % |
| Days without any reading from the station | 7 | 116 | 13 |
* 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 25 µg/m³, at most three to four days a year. In 2025 there were 44 such days.
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
19.3
Nowµg/m³
Measured at 19:00
47.5
Last 24 hoursµg/m³
measured in 88 % of hours · provisional
51
Last 7 daysµg/m³
measured in 98 % of hours · provisional
50.6
Last 30 daysµg/m³
measured in 94 % of hours · provisional
46.3
Last 12 monthsµg/m³
measured in 96 % of hours · provisional
Days in 2025: O₃, 8-hour average above 120 µg/m³
No measured day above the limit. 116 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
Months of 2025
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 67 | 0 |
| February | 0 | 80 | 0 |
| March | 0 | 110 | 5 |
| April | 0 | 103 | 3 |
| May | 0 | 114 | 1 |
| June | 30 | ||
| July | 31 | ||
| August | 31 | ||
| September | 0 | 94 | 15 |
| October | 0 | 72 | 0 |
| November | 0 | 54 | 0 |
| December | 0 | 37 | 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 | 48 | model estimate, not counted |
| 21:00 | 58 | model estimate, not counted |
| 20:00 | 2.2 | |
| 19:00 | 19.3 | |
| 18:00 | 57.5 | |
| 17:00 | 114.7 | |
| 16:00 | 120.7 | |
| 15:00 | 119.8 | |
| 14:00 | 118.8 | |
| 13:00 | 108.9 | |
| 12:00 | 96.6 | |
| 11:00 | 83.9 | |
| 10:00 | 47.4 | |
| 09:00 | 11.6 | |
| 08:00 | 0.6 | |
| 06:00 | 3.6 | |
| 05:00 | 4.4 | |
| 04:00 | 9.1 | |
| 03:00 | 11 | |
| 02:00 | 8.9 | |
| 01:00 | 9.8 | |
| Tuesday, 10/6 | ||
| 00:00 | 12.1 | |
| 23:00 | 35.6 | |
| 22:00 | 44.5 | |
| 21:00 | 44.9 | |
| 20:00 | 16.3 | |
| 19:00 | 18.3 | |
| 18:00 | 109.6 | |
| 17:00 | 135.7 | |
| 16:00 | 133.2 | |
| 15:00 | 128.4 | |
| 14:00 | 121.4 | |
| 13:00 | 111 | |
| 12:00 | 86.2 | |
| 11:00 | 65 | |
| 10:00 | 38.4 | |
| 09:00 | 17.3 | |
| 08:00 | 4.9 | |
| 07:00 | 2.6 | |
| 06:00 | 0.6 | |
| 05:00 | 1.9 | |
| 04:00 | 2.5 | |
| 03:00 | 0.4 | |
| 02:00 | 4.7 | |
| 01:00 | 1.6 | |
| Monday, 10/5 | ||
| 00:00 | 6.3 | |
| 23:00 | 19.2 | |
| 22:00 | 41.2 | |
| 21:00 | 26.8 | |
| 20:00 | 17 | |
| 19:00 | 12.7 | |
| 18:00 | 58.8 | |
| 17:00 | 105.1 | |
| 16:00 | 112.4 | |
| 15:00 | 114.8 | |
| 14:00 | 109.4 | |
| 13:00 | 95.9 | |
| 12:00 | 85.4 | |
| 11:00 | 68 | |
| 10:00 | 47 | |
| 09:00 | 21.5 | |
| 08:00 | 1.8 | |
| 07:00 | 2.8 | |
| 05:00 | 2 | |
| 04:00 | 11.7 | |
| 03:00 | 11 | |
| 02:00 | 6.7 | |
| 01:00 | 10.4 | |
| Sunday, 10/4 | ||
| 00:00 | 16.9 | |
| 23:00 | 33.2 | |
| 22:00 | 35.6 | |
| 21:00 | 20.4 | |
| 19:00 | 57.2 | |
| 18:00 | 107.9 | |
| 17:00 | 115.6 | |
| 16:00 | 114.9 | |
| 15:00 | 104.7 | |
| 14:00 | 102.3 | |
| 13:00 | 99.3 | |
| 12:00 | 90.7 | |
| 11:00 | 69 | |
| 10:00 | 41.9 | |
| 09:00 | 19 | |
| 08:00 | 4.8 | |
| 07:00 | 2.7 | |
| 06:00 | 7.7 | |
| 05:00 | 8.4 | |
| 04:00 | 11.8 | |
| 03:00 | 17.4 | |
| 02:00 | 26.5 | |
| 01:00 | 54.4 | |
| Saturday, 10/3 | ||
| 00:00 | 56.5 | |
| 23:00 | 68.9 | |
| 22:00 | 57.5 | |
| 21:00 | 41.8 | |
| 20:00 | 24.7 | |
| 19:00 | 66.1 | |
| 18:00 | 102.8 | |
| 17:00 | 109.9 | |
| 16:00 | 108.6 | |
| 15:00 | 104.5 | |
| 14:00 | 102.8 | |
| 13:00 | 98.4 | |
| 12:00 | 89.3 | |
| 11:00 | 67.2 | |
| 10:00 | 41.5 | |
| 09:00 | 15.1 | |
| 08:00 | 0 | |
| 07:00 | 0.5 | |
| 06:00 | 0.3 | |
| 05:00 | 3.3 | |
| 04:00 | 2.8 | |
| 03:00 | 11.9 | |
| 02:00 | 12.6 | |
| 01:00 | 21 | |
| Friday, 10/2 | ||
| 00:00 | 11 | |
| 23:00 | 28.1 | |
| 22:00 | 30.6 | |
| 21:00 | 12.3 | |
| 20:00 | 10.5 | |
| 19:00 | 27.6 | |
| 18:00 | 82.3 | |
| 17:00 | 100.7 | |
| 16:00 | 103.8 | |
| 15:00 | 98.6 | |
| 14:00 | 97.7 | |
| 13:00 | 89.8 | |
| 12:00 | 81.7 | |
| 11:00 | 71.1 | |
| 10:00 | 43 | |
| 09:00 | 18.9 | |
| 08:00 | 11.5 | |
| 07:00 | 5.2 | |
| 06:00 | 5.9 | |
| 05:00 | 25.2 | |
| 04:00 | 38.6 | |
| 03:00 | 38.1 | |
| 02:00 | 53 | |
| 01:00 | 58.3 | |
| Thursday, 10/1 | ||
| 00:00 | 59.4 | |
| 23:00 | 72.9 | |
| 22:00 | 76.1 | |
| 21:00 | 77 | |
| 20:00 | 46.4 | |
| 19:00 | 69.5 | |
| 18:00 | 99.1 | |
| 17:00 | 102.3 | |
| 16:00 | 97.3 | |
| 15:00 | 96.7 | |
| 14:00 | 94 | |
| 13:00 | 88.9 | |
| 12:00 | 79.3 | |
| 11:00 | 69 | |
| 10:00 | 59.6 | |
| 09:00 | 42.6 | |
| 08:00 | 26 | |
| 07:00 | 31.6 | |
| 06:00 | 30.6 | |
| 05:00 | 38.8 | |
| 04:00 | 49.2 | |
| 03:00 | 48.5 | |
| 02:00 | 55.9 | |
| 01:00 | 53.7 | |
| Wednesday, 9/30 | ||
| 00:00 | 55.1 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 111.3 | provisional |
| Mon, 10/5 | 93.7 | provisional |
| Sun, 10/4 | 100.6 | provisional |
| Sat, 10/3 | 97.9 | provisional |
| Fri, 10/2 | 90.7 | provisional |
| Thu, 10/1 | 90.9 | provisional |
| Wed, 9/30 | 90.8 | provisional |
| Tue, 9/29 | 89.9 | provisional |
| Mon, 9/28 | 100.3 | provisional |
| Sun, 9/27 | 94.9 | provisional |
| Sat, 9/26 | 85.6 | provisional |
| Fri, 9/25 | 65.6 | provisional |
| Thu, 9/24 | too few readings | |
| Wed, 9/23 | 67.4 | provisional |
| Tue, 9/22 | 76.7 | provisional |
| Mon, 9/21 | 78.2 | provisional |
| Sun, 9/20 | too few readings | |
| Sat, 9/19 | 100.1 | provisional |
| Fri, 9/18 | 97.3 | provisional |
| Thu, 9/17 | 102.2 | provisional |
| Wed, 9/16 | too few readings | |
| Tue, 9/15 | too few readings | |
| Mon, 9/14 | 85.1 | provisional |
| Sun, 9/13 | too few readings | |
| Sat, 9/12 | 86.6 | provisional |
| Fri, 9/11 | 46.1 | provisional |
| Thu, 9/10 | 78.4 | provisional |
| Wed, 9/9 | 123.8 | above the limit · provisional |
| Tue, 9/8 | 124.4 | above the limit · provisional |
| Mon, 9/7 | 111.7 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 50.7 | 42.5 | measured in 99 % of hours · provisional · year before: same days |
| September 2026 | 54.8 | too few readings | measured in 94 % of hours · provisional |
| August 2026 | 77.7 | measured in 100 % of hours · provisional | |
| July 2026 | 67 | measured in 100 % of hours · provisional | |
| June 2026 | 61.1 | measured in 95 % of hours · provisional | |
| May 2026 | 64.6 | too few readings | measured in 99 % of hours · provisional |
| April 2026 | 59.4 | too few readings | measured in 99 % of hours · provisional |
| March 2026 | too few readings | 41.3 | measured in 73 % of hours · provisional · 7 days without data from the station |
| February 2026 | 31.3 | 31.6 | measured in 97 % of hours · provisional |
| January 2026 | 31 | too few readings | measured in 98 % of hours · provisional |
| December 2025 | 10 | 21.5 | measured in 98 % of hours · verified |
| November 2025 | 17.4 | 22.5 | measured in 99 % 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) | 38 | 0² | ≥ 24² |
| Annual average, µg/m³ | 55.6* | too few | 45.4 |
| Highest 8-hour average, µg/m³ | 149August 10 | 114May 15 | 155August 17 |
| Hours measured | 95 % | 57 % | 90 % |
| Days without any reading from the station | 7 | 116 | 13 |
* 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.
The column for 2023 is shown on wider screens.
Sulphur dioxide SO₂
5.3
Nowµg/m³
Measured at 19:00
7.2
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
7.2
Last 7 daysµg/m³
measured in 100 % of hours · provisional
4.5
Last 30 daysµg/m³
measured in 100 % of hours · provisional
3.8
Last 12 monthsµg/m³
measured in 96 % of hours · provisional
Days in 2025: SO₂, daily average above 125 µg/m³
No measured day above the limit. 116 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 | 84 | 0 |
| February | 0 | 0 | 27 | 0 |
| March | 0 | 0 | 25 | 5 |
| April | 0 | 0 | 9 | 3 |
| May | 0 | 0 | 4 | 1 |
| June | 30 | |||
| July | 31 | |||
| August | 31 | |||
| September | 0 | 0 | 12 | 15 |
| October | 0 | 0 | 9 | 0 |
| November | 0 | 0 | 14 | 0 |
| December | 0 | 0 | 33 | 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 | ||
| 20:00 | 5.6 | |
| 19:00 | 5.3 | |
| 18:00 | 3.9 | |
| 17:00 | 4.7 | |
| 16:00 | 5.4 | |
| 15:00 | 5.5 | |
| 14:00 | 7.1 | |
| 13:00 | 11.4 | |
| 12:00 | 25.8 | |
| 11:00 | 29.1 | |
| 10:00 | 12 | |
| 09:00 | 4 | |
| 08:00 | 2.9 | |
| 07:00 | 2.9 | |
| 06:00 | 3 | |
| 05:00 | 2.7 | |
| 04:00 | 2.9 | |
| 03:00 | 3.1 | |
| 02:00 | 3.4 | |
| 01:00 | 4.1 | |
| Tuesday, 10/6 | ||
| 00:00 | 5.8 | |
| 23:00 | 7.9 | |
| 22:00 | 8.4 | |
| 21:00 | 10.3 | |
| 20:00 | 20.4 | |
| 19:00 | 45.3 | |
| 18:00 | 40.1 | |
| 17:00 | 35.3 | |
| 16:00 | 41.4 | |
| 15:00 | 57.6 | |
| 14:00 | 32.1 | |
| 13:00 | 24.7 | |
| 12:00 | 5.7 | |
| 11:00 | 4.8 | |
| 10:00 | 3.9 | |
| 09:00 | 2.4 | |
| 08:00 | 2.3 | |
| 07:00 | 2.3 | |
| 06:00 | 1.9 | |
| 05:00 | 2.1 | |
| 04:00 | 2.4 | |
| 03:00 | 2.3 | |
| 02:00 | 2.5 | |
| 01:00 | 3.1 | |
| Monday, 10/5 | ||
| 00:00 | 4.1 | |
| 23:00 | 5.8 | |
| 22:00 | 7.6 | |
| 21:00 | 6.5 | |
| 20:00 | 14.1 | |
| 19:00 | 20.9 | |
| 18:00 | 32.2 | |
| 17:00 | 32.8 | |
| 16:00 | 16.6 | |
| 15:00 | 8.1 | |
| 14:00 | 8 | |
| 13:00 | 6.6 | |
| 12:00 | 6.3 | |
| 11:00 | 5.8 | |
| 10:00 | 4.3 | |
| 09:00 | 1.9 | |
| 08:00 | 2 | |
| 07:00 | 2.3 | |
| 06:00 | 2.1 | |
| 05:00 | 2 | |
| 04:00 | 2.1 | |
| 03:00 | 2.3 | |
| 02:00 | 1.9 | |
| 01:00 | 2.7 | |
| Sunday, 10/4 | ||
| 00:00 | 4.3 | |
| 23:00 | 5.9 | |
| 22:00 | 4.4 | |
| 21:00 | 7.7 | |
| 20:00 | 15.9 | |
| 19:00 | 39.2 | |
| 18:00 | 53.1 | |
| 17:00 | 25.7 | |
| 16:00 | 26.2 | |
| 15:00 | 39.3 | |
| 14:00 | 15.2 | |
| 13:00 | 6.5 | |
| 12:00 | 5.1 | |
| 11:00 | 4.2 | |
| 10:00 | 2.5 | |
| 09:00 | 1.8 | |
| 08:00 | 1.7 | |
| 07:00 | 1.6 | |
| 06:00 | 1.6 | |
| 05:00 | 1.7 | |
| 04:00 | 1.8 | |
| 03:00 | 1.6 | |
| 02:00 | 2.4 | |
| 01:00 | 4.4 | |
| Saturday, 10/3 | ||
| 00:00 | 4.5 | |
| 23:00 | 8.3 | |
| 22:00 | 7.8 | |
| 21:00 | 5.9 | |
| 20:00 | 3.9 | |
| 19:00 | 3.3 | |
| 18:00 | 3.3 | |
| 17:00 | 2.9 | |
| 16:00 | 3.1 | |
| 15:00 | 2.9 | |
| 14:00 | 3.2 | |
| 13:00 | 4.2 | |
| 12:00 | 5.6 | |
| 11:00 | 6.1 | |
| 10:00 | 3.7 | |
| 09:00 | 1.8 | |
| 08:00 | 0.7 | |
| 07:00 | 1.8 | |
| 06:00 | 1.5 | |
| 05:00 | 1.2 | |
| 04:00 | 1.7 | |
| 03:00 | 1.8 | |
| 02:00 | 1.8 | |
| 01:00 | 1.5 | |
| Friday, 10/2 | ||
| 00:00 | 1.7 | |
| 23:00 | 2.1 | |
| 22:00 | 2.7 | |
| 21:00 | 2.6 | |
| 20:00 | 3.9 | |
| 19:00 | 2.8 | |
| 18:00 | 2.5 | |
| 17:00 | 2.1 | |
| 16:00 | 2.2 | |
| 15:00 | 1.9 | |
| 14:00 | 2.1 | |
| 13:00 | 2.3 | |
| 12:00 | 3.3 | |
| 11:00 | 3.5 | |
| 10:00 | 3.4 | |
| 09:00 | 2.1 | |
| 08:00 | 1.5 | |
| 07:00 | 1.9 | |
| 06:00 | 1.7 | |
| 05:00 | 2.6 | |
| 04:00 | 3.8 | |
| 03:00 | 3.7 | |
| 02:00 | 6 | |
| 01:00 | 6.7 | |
| Thursday, 10/1 | ||
| 00:00 | 8.1 | |
| 23:00 | 7.8 | |
| 22:00 | 5.9 | |
| 21:00 | 4.3 | |
| 20:00 | 12.1 | |
| 19:00 | 13.2 | |
| 18:00 | 4.5 | |
| 17:00 | 2.1 | |
| 16:00 | 2.3 | |
| 15:00 | 2.1 | |
| 14:00 | 9.2 | |
| 13:00 | 5 | |
| 12:00 | 2.4 | |
| 11:00 | 2.9 | |
| 10:00 | 3.2 | |
| 09:00 | 3.6 | |
| 08:00 | 2.9 | |
| 07:00 | 2.4 | |
| 06:00 | 1.5 | |
| 05:00 | 3.6 | |
| 04:00 | 4.2 | |
| 03:00 | 4.4 | |
| 02:00 | 5.1 | |
| 01:00 | 6.6 | |
| Wednesday, 9/30 | ||
| 00:00 | 5.8 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 15.2 | provisional |
| Mon, 10/5 | 8.3 | provisional |
| Sun, 10/4 | 11.4 | provisional |
| Sat, 10/3 | 3.4 | provisional |
| Fri, 10/2 | 2.9 | provisional |
| Thu, 10/1 | 5 | provisional |
| Wed, 9/30 | 4.5 | provisional |
| Tue, 9/29 | 2.4 | provisional |
| Mon, 9/28 | 3.9 | provisional |
| Sun, 9/27 | 2.9 | provisional |
| Sat, 9/26 | 2.4 | provisional |
| Fri, 9/25 | 2.4 | provisional |
| Thu, 9/24 | 2.4 | provisional |
| Wed, 9/23 | 2.1 | provisional |
| Tue, 9/22 | 2.1 | provisional |
| Mon, 9/21 | 2.5 | provisional |
| Sun, 9/20 | 3.5 | provisional |
| Sat, 9/19 | 2.7 | provisional |
| Fri, 9/18 | 3 | provisional |
| Thu, 9/17 | 3.5 | provisional |
| Wed, 9/16 | 9.5 | provisional |
| Tue, 9/15 | 2.5 | provisional |
| Mon, 9/14 | 2.7 | provisional |
| Sun, 9/13 | 2.4 | provisional |
| Sat, 9/12 | 2.3 | provisional |
| Fri, 9/11 | 2.6 | provisional |
| Thu, 9/10 | 2.8 | provisional |
| Wed, 9/9 | 6.1 | provisional |
| Tue, 9/8 | 9 | provisional |
| Mon, 9/7 | 7.1 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 7.7 | 1 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 3.6 | too few readings | measured in 100 % of hours · provisional |
| August 2026 | 4.2 | measured in 100 % of hours · provisional | |
| July 2026 | 2.9 | measured in 100 % of hours · provisional | |
| June 2026 | 2.4 | measured in 96 % of hours · provisional | |
| May 2026 | 1.7 | 2.3 | measured in 94 % of hours · provisional |
| April 2026 | 1 | 3.3 | measured in 88 % of hours · provisional |
| March 2026 | too few readings | 6.6 | measured in 72 % of hours · provisional · 7 days without data from the station |
| February 2026 | 6.2 | 5.3 | measured in 100 % of hours · provisional |
| January 2026 | 5.2 | 9.1 | measured in 100 % of hours · provisional |
| December 2025 | 6.3 | 4 | measured in 99 % of hours · verified |
| November 2025 | 3.9 | 3.2 | 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 | 0² | 0 |
| Hours above 350 µg/m³ (allowed 24) | 0 | 0² | 0 |
| Hours above 500 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ | 3.5* | too few | 3.7 |
| Highest daily average, µg/m³ | 16March 4 | 84January 21 | 31December 30 |
| Highest hourly value, µg/m³ | 58October 6 | 134January 21 | 136December 30 |
| Hours measured | 94 % | 67 % | 95 % |
| Days without any reading from the station | 7 | 116 | 13 |
* 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 was 1 such day.
- WHO 2021: daily 40 µg/m³, at most three to four days a year. In 2025 there was 1 such day.
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: 9
2 outages, 222 hours in total in the last 12 months.
Timeline of outages from October 7, 2025 to today
| From | To | Duration |
|---|---|---|
| Jun 4, 2026 09:00 | Jun 5, 2026 11:00 | 26 hours |
| Mar 11, 2026 09:00 | Mar 19, 2026 13:00 | 8 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 Državna mreža za trajno praćenje kvalitete zraka. 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.