Air at the Osijek-1 station
Osijek, Croatia
Network: Državna mreža za trajno praćenje kvalitete zraka · Station code: HR0003A
This year, up to yesterday (October 6)
18 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: 6 days above the limit, the target value allows 25 as a three-year average.
15 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 10, 2026, O₃ 168 µg/m³ as a daily average, 1.4 times the limit.
Daily average for 268 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
Moderate
Air now · Measured at 16:00
Latest values
Latest value: 16:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 29.2 µg/m³ | Fair |
| NO₂ | 34.6 µg/m³ | Moderate |
| O₃ | 103.2 µg/m³ | Moderate |
How the air is changing
Over the last seven days there was more PM10, NO₂, and O₃ in the air than the week before.
- PM10: average 44.2 µg/m³, week before 19.5 µg/m³
- NO₂: average 28.9 µg/m³, week before 20.5 µg/m³
- O₃: average 55.1 µg/m³, week before 48.4 µg/m³
Last month there was more NO₂ and less PM10 and O₃ in the air than the month before.
- PM10: average 21.9 µg/m³, month before 29.5 µg/m³
- NO₂: average 20.2 µg/m³, month before 18.2 µg/m³
- O₃: average 60 µg/m³, month before 85.3 µg/m³
Show
Particulate matter PM10
29.2
Nowµg/m³
Measured at 16:00
69.7
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
44.2
Last 7 daysµg/m³
measured in 100 % of hours · provisional
26.9
Last 30 daysµg/m³
measured in 97 % of hours · provisional
27.9
Last 12 monthsµg/m³
measured in 97 % of hours · provisional
Days in 2026: PM10, daily average above 50 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)
- Jan 10 53
- Jan 13 54
- Jan 14 61
- Jan 15 97
- Jan 16 88
- Jan 22 63
- Jan 23 99
- Jan 24 91
- Feb 6 53
- Mar 2 76
- Mar 3 79
- Mar 4 87
- Mar 6 61
- Jun 30 54
- Oct 6 66
Values in µg/m³, limit 50 µg/m³.
Months of 2026
| Month | Days above 50 | Highest day | No readings |
|---|---|---|---|
| January | 8 above the number allowed | 99 | 0 |
| February | 1 above the number allowed | 53 | 0 |
| March | 4 above the number allowed | 87 | 0 |
| April | 0 | 47 | 0 |
| May | 0 | 32 | 0 |
| June | 1 above the number allowed | 54 | 0 |
| July | 0 | 33 | 0 |
| August | 0 | 49 | 0 |
| September | 0 | 45 | 0 |
| October up to yesterday | 1 above the number allowed | 66 | 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 | ||
| 18:00 | 50 | model estimate, not counted |
| 17:00 | 51 | model estimate, not counted |
| 16:00 | 73 | model estimate, not counted |
| 15:00 | 35.9 | |
| 14:00 | 73 | |
| 13:00 | 84.9 | |
| 12:00 | 76 | |
| 11:00 | 72.9 | |
| 10:00 | 87.1 | |
| 09:00 | 82.6 | |
| 08:00 | 55.5 | |
| 07:00 | 49.7 | |
| 06:00 | 51.2 | |
| 05:00 | 47.9 | |
| 04:00 | 47.8 | |
| 03:00 | 42.9 | |
| 02:00 | 39 | |
| 01:00 | 40.2 | |
| Tuesday, 10/6 | ||
| 00:00 | 45.6 | |
| 23:00 | 74.7 | |
| 22:00 | 101.9 | |
| 21:00 | 156.2 | |
| 20:00 | 129.3 | |
| 19:00 | 121.3 | |
| 18:00 | 60.1 | |
| 17:00 | 56.4 | |
| 16:00 | 56.4 | |
| 15:00 | 62.2 | |
| 14:00 | 70.3 | |
| 13:00 | 74.7 | |
| 12:00 | 78.8 | |
| 11:00 | 76.2 | |
| 10:00 | 77.5 | |
| 09:00 | 57.8 | |
| 08:00 | 41.1 | |
| 07:00 | 39.8 | |
| 06:00 | 29.9 | |
| 05:00 | 30.9 | |
| 04:00 | 32.1 | |
| 03:00 | 32.1 | |
| 02:00 | 36.4 | |
| 01:00 | 39.9 | |
| Monday, 10/5 | ||
| 00:00 | 35.5 | |
| 23:00 | 28.6 | |
| 22:00 | 29.9 | |
| 21:00 | 46 | |
| 20:00 | 87.2 | |
| 19:00 | 76.1 | |
| 18:00 | 42.8 | |
| 17:00 | 46.1 | |
| 16:00 | 42.5 | |
| 15:00 | 51.8 | |
| 14:00 | 54.7 | |
| 13:00 | 48.3 | |
| 12:00 | 48.8 | |
| 11:00 | 46.8 | |
| 10:00 | 71.4 | |
| 09:00 | 49.4 | |
| 08:00 | 28.3 | |
| 07:00 | 24 | |
| 06:00 | 23.1 | |
| 05:00 | 21.2 | |
| 04:00 | 20.1 | |
| 03:00 | 21.1 | |
| 02:00 | 23 | |
| 01:00 | 26.1 | |
| Sunday, 10/4 | ||
| 00:00 | 31.7 | |
| 23:00 | 39.3 | |
| 22:00 | 38.8 | |
| 21:00 | 57.3 | |
| 20:00 | 53.7 | |
| 19:00 | 68.8 | |
| 18:00 | 35.3 | |
| 17:00 | 28.1 | |
| 16:00 | 27.8 | |
| 15:00 | 24.7 | |
| 14:00 | 24.6 | |
| 13:00 | 21.1 | |
| 12:00 | 29.6 | |
| 11:00 | 50.8 | |
| 10:00 | 65.3 | |
| 09:00 | 51.3 | |
| 08:00 | 27.8 | |
| 07:00 | 27.9 | |
| 06:00 | 26 | |
| 05:00 | 24 | |
| 04:00 | 25.2 | |
| 03:00 | 25.9 | |
| 02:00 | 35.8 | |
| 01:00 | 28.7 | |
| Saturday, 10/3 | ||
| 00:00 | 56.5 | |
| 23:00 | 67.4 | |
| 22:00 | 44 | |
| 21:00 | 43.4 | |
| 20:00 | 51.3 | |
| 19:00 | 52.3 | |
| 18:00 | 40.4 | |
| 17:00 | 28.7 | |
| 16:00 | 27.2 | |
| 15:00 | 28.1 | |
| 14:00 | 31.8 | |
| 13:00 | 38.9 | |
| 12:00 | 48.3 | |
| 11:00 | 50.3 | |
| 10:00 | 59.9 | |
| 09:00 | 44.3 | |
| 08:00 | 33.9 | |
| 07:00 | 32.2 | |
| 06:00 | 29.5 | |
| 05:00 | 29.9 | |
| 04:00 | 30.6 | |
| 03:00 | 30.3 | |
| 02:00 | 29.4 | |
| 01:00 | 27.6 | |
| Friday, 10/2 | ||
| 00:00 | 30.9 | |
| 23:00 | 59.9 | |
| 22:00 | 63.1 | |
| 21:00 | 71.3 | |
| 20:00 | 65 | |
| 19:00 | 47.3 | |
| 18:00 | 35 | |
| 17:00 | 29.1 | |
| 16:00 | 32.1 | |
| 15:00 | 31.6 | |
| 14:00 | 34.2 | |
| 13:00 | 32.5 | |
| 12:00 | 36.5 | |
| 11:00 | 48.2 | |
| 10:00 | 82.9 | |
| 09:00 | 56 | |
| 08:00 | 38.5 | |
| 07:00 | 36.2 | |
| 06:00 | 35.8 | |
| 05:00 | 33.2 | |
| 04:00 | 35.2 | |
| 03:00 | 33.5 | |
| 02:00 | 38.1 | |
| 01:00 | 34.5 | |
| Thursday, 10/1 | ||
| 00:00 | 43.3 | |
| 23:00 | 59.8 | |
| 22:00 | 56.4 | |
| 21:00 | 51.6 | |
| 20:00 | 55.6 | |
| 19:00 | 45.7 | |
| 18:00 | 31.9 | |
| 17:00 | 36.2 | |
| 16:00 | 46.9 | |
| 15:00 | 42.2 | |
| 14:00 | 46.2 | |
| 13:00 | 42.4 | |
| 12:00 | 46.4 | |
| 11:00 | 45.8 | |
| 10:00 | 50.1 | |
| 09:00 | 59.6 | |
| 08:00 | 48.8 | |
| 07:00 | 39.2 | |
| 06:00 | 39.5 | |
| 05:00 | 38.8 | |
| 04:00 | 35.9 | |
| 03:00 | 30.8 | |
| 02:00 | 35.2 | |
| 01:00 | 35.2 | |
| Wednesday, 9/30 | ||
| 00:00 | 41.7 | |
| 23:00 | 43.7 | |
| 22:00 | 38.4 | |
| 21:00 | 57.8 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 65.9 | above the limit · provisional |
| Mon, 10/5 | 41.4 | provisional |
| Sun, 10/4 | 36.2 | provisional |
| Sat, 10/3 | 39.8 | provisional |
| Fri, 10/2 | 43.4 | provisional |
| Thu, 10/1 | 44.3 | provisional |
| Wed, 9/30 | 38.7 | provisional |
| Tue, 9/29 | 25.3 | provisional |
| Mon, 9/28 | 26 | provisional |
| Sun, 9/27 | 22.2 | provisional |
| Sat, 9/26 | 22.5 | provisional |
| Fri, 9/25 | 14.2 | provisional |
| Thu, 9/24 | 13.7 | provisional |
| Wed, 9/23 | 12.6 | provisional |
| Tue, 9/22 | 16.6 | provisional |
| Mon, 9/21 | 21.6 | provisional |
| Sun, 9/20 | 22.8 | provisional |
| Sat, 9/19 | 18 | provisional |
| Fri, 9/18 | 16.4 | provisional |
| Thu, 9/17 | 27 | provisional |
| Wed, 9/16 | 31.4 | provisional |
| Tue, 9/15 | 15.6 | provisional |
| Mon, 9/14 | 15.4 | provisional |
| Sun, 9/13 | 18.3 | provisional |
| Sat, 9/12 | 14.5 | provisional |
| Fri, 9/11 | 17.7 | provisional |
| Thu, 9/10 | 16 | provisional |
| Wed, 9/9 | 41.6 | provisional |
| Tue, 9/8 | 45.1 | provisional |
| Mon, 9/7 | too few readings |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 45.2 | 17.8 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 21.9 | 20.8 | measured in 97 % of hours · provisional |
| August 2026 | 29.5 | 26.2 | measured in 100 % of hours · provisional |
| July 2026 | 21 | 16.6 | measured in 96 % of hours · provisional |
| June 2026 | 22.2 | 21.8 | measured in 94 % of hours · provisional |
| May 2026 | 17.2 | 15 | measured in 86 % of hours · provisional |
| April 2026 | 23.3 | 22.2 | measured in 99 % of hours · provisional |
| March 2026 | 37.7 | 32.4 | measured in 99 % of hours · provisional |
| February 2026 | 30.1 | 45.1 | measured in 97 % of hours · provisional |
| January 2026 | 41.4 | too few readings | measured in 99 % of hours · provisional |
| December 2025 | 32.2 | 35.7 | measured in 99 % of hours · verified |
| November 2025 | 27.9 | 36.2 | 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) | 15 | ≥ 23² | 34 |
| Annual average, µg/m³ (EU limit 40) | 27.8* | 25.7 | 28.3 |
| Highest daily average, µg/m³ | 99January 23 | 90December 19 | 115March 31 |
| Highest hourly value, µg/m³ | 165June 10 | 297August 14 | 249March 31 |
| Hours measured | 96 % | 90 % | 99 % |
| Days without any reading from the station | 0 | 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.
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 2026 there were 28 such days.
- WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2026 there were 28 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.
The worst days of 2026
| Day | Average | Times the limit |
|---|---|---|
| Jan 23, 2026provisional | 99 | 2.0 × |
| Jan 15, 2026provisional | 97 | 1.9 × |
| Jan 24, 2026provisional | 91 | 1.8 × |
| Jan 16, 2026provisional | 88 | 1.8 × |
| Mar 4, 2026provisional | 87 | 1.7 × |
Daily average in µg/m³, daily limit 50 µg/m³. Days with the same unverified value over many hours are not on this list.
Nitrogen dioxide NO₂
34.6
Nowµg/m³
Measured at 16:00
38.8
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
28.9
Last 7 daysµg/m³
measured in 100 % of hours · provisional
22.5
Last 30 daysµg/m³
measured in 100 % of hours · provisional
20.9
Last 12 monthsµg/m³
measured in 98 % of hours · provisional
Days in 2026: 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 2026
| Month | Days with an hour above 200 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 57 | 0 |
| February | 0 | 0 | 47 | 0 |
| March | 0 | 0 | 44 | 0 |
| April | 0 | 0 | 38 | 0 |
| May | 0 | 0 | 26 | 0 |
| June | 0 | 0 | 29 | 0 |
| July | 0 | 0 | 26 | 0 |
| August | 0 | 0 | 31 | 0 |
| September | 0 | 0 | 35 | 0 |
| October up to yesterday | 0 | 0 | 42 | 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 | ||
| 18:00 | 12 | model estimate, not counted |
| 17:00 | 7 | model estimate, not counted |
| 16:00 | 5 | model estimate, not counted |
| 15:00 | 28.9 | |
| 14:00 | 23.8 | |
| 13:00 | 28.5 | |
| 12:00 | 30.8 | |
| 11:00 | 30.6 | |
| 10:00 | 38.4 | |
| 09:00 | 45.8 | |
| 08:00 | 36.6 | |
| 07:00 | 49.4 | |
| 06:00 | 38.1 | |
| 05:00 | 10.9 | |
| 04:00 | 11.1 | |
| 03:00 | 12.3 | |
| 02:00 | 25.2 | |
| 01:00 | 25.5 | |
| Tuesday, 10/6 | ||
| 00:00 | 33.1 | |
| 23:00 | 59 | |
| 22:00 | 77.2 | |
| 21:00 | 77.8 | |
| 20:00 | 93.8 | |
| 19:00 | 87.1 | |
| 18:00 | 53.1 | |
| 17:00 | 17 | |
| 16:00 | 26.2 | |
| 15:00 | 25.5 | |
| 14:00 | 21.3 | |
| 13:00 | 21.7 | |
| 12:00 | 26 | |
| 11:00 | 36.8 | |
| 10:00 | 42.9 | |
| 09:00 | 60.6 | |
| 08:00 | 46.3 | |
| 07:00 | 46.6 | |
| 06:00 | 16.5 | |
| 05:00 | 16.2 | |
| 04:00 | 18.6 | |
| 03:00 | 21.1 | |
| 02:00 | 32.2 | |
| 01:00 | 48.6 | |
| Monday, 10/5 | ||
| 00:00 | 37.9 | |
| 23:00 | 33.3 | |
| 22:00 | 38.7 | |
| 21:00 | 53.1 | |
| 20:00 | 66.5 | |
| 19:00 | 68.9 | |
| 18:00 | 53.6 | |
| 17:00 | 14.9 | |
| 16:00 | 12.7 | |
| 15:00 | 18.9 | |
| 14:00 | 16.1 | |
| 13:00 | 11.8 | |
| 12:00 | 17.9 | |
| 11:00 | 15.9 | |
| 10:00 | 30.6 | |
| 09:00 | 25.9 | |
| 08:00 | 40.4 | |
| 07:00 | 25.2 | |
| 06:00 | 25.6 | |
| 05:00 | 9.4 | |
| 04:00 | 9.8 | |
| 03:00 | 11.5 | |
| 02:00 | 15.6 | |
| 01:00 | 20.3 | |
| Sunday, 10/4 | ||
| 00:00 | 39.1 | |
| 23:00 | 66.4 | |
| 22:00 | 53.9 | |
| 21:00 | 46.8 | |
| 20:00 | 61.2 | |
| 19:00 | 88.9 | |
| 18:00 | 43.2 | |
| 17:00 | 12.1 | |
| 16:00 | 6.9 | |
| 15:00 | 5.5 | |
| 14:00 | 6.5 | |
| 13:00 | 6.1 | |
| 12:00 | 8.4 | |
| 11:00 | 15.6 | |
| 10:00 | 13.6 | |
| 09:00 | 9 | |
| 08:00 | 9.9 | |
| 07:00 | 13.4 | |
| 06:00 | 10.1 | |
| 05:00 | 15.8 | |
| 04:00 | 20.3 | |
| 03:00 | 29.2 | |
| 02:00 | 45 | |
| 01:00 | 60.1 | |
| Saturday, 10/3 | ||
| 00:00 | 59.1 | |
| 23:00 | 72.2 | |
| 22:00 | 56.2 | |
| 21:00 | 33.1 | |
| 20:00 | 74.2 | |
| 19:00 | 88.8 | |
| 18:00 | 33.7 | |
| 17:00 | 5.9 | |
| 16:00 | 5.2 | |
| 15:00 | 10.1 | |
| 14:00 | 9.8 | |
| 13:00 | 14.8 | |
| 12:00 | 16.7 | |
| 11:00 | 19.2 | |
| 10:00 | 24.7 | |
| 09:00 | 16.4 | |
| 08:00 | 25.5 | |
| 07:00 | 32.6 | |
| 06:00 | 16.3 | |
| 05:00 | 12.1 | |
| 04:00 | 26.8 | |
| 03:00 | 25.4 | |
| 02:00 | 28.5 | |
| 01:00 | 31.4 | |
| Friday, 10/2 | ||
| 00:00 | 51.2 | |
| 23:00 | 58.2 | |
| 22:00 | 79 | |
| 21:00 | 98.8 | |
| 20:00 | 90 | |
| 19:00 | 59 | |
| 18:00 | 20.8 | |
| 17:00 | 9.7 | |
| 16:00 | 11.5 | |
| 15:00 | 9 | |
| 14:00 | 11.9 | |
| 13:00 | 17.7 | |
| 12:00 | 18.1 | |
| 11:00 | 22.5 | |
| 10:00 | 18.3 | |
| 09:00 | 23.5 | |
| 08:00 | 26 | |
| 07:00 | 36.7 | |
| 06:00 | 21.6 | |
| 05:00 | 11.7 | |
| 04:00 | 10.1 | |
| 03:00 | 14.2 | |
| 02:00 | 15.2 | |
| 01:00 | 24.4 | |
| Thursday, 10/1 | ||
| 00:00 | 28.7 | |
| 23:00 | 41.9 | |
| 22:00 | 56.1 | |
| 21:00 | 68.3 | |
| 20:00 | 63.1 | |
| 19:00 | 25.8 | |
| 18:00 | 10.9 | |
| 17:00 | 6.2 | |
| 16:00 | 9 | |
| 15:00 | 9.7 | |
| 14:00 | 14.1 | |
| 13:00 | 15.6 | |
| 12:00 | 17.1 | |
| 11:00 | 17.1 | |
| 10:00 | 16.9 | |
| 09:00 | 15.6 | |
| 08:00 | 29.5 | |
| 07:00 | 27.5 | |
| 06:00 | 20.9 | |
| 05:00 | 10.9 | |
| 04:00 | 8.4 | |
| 03:00 | 6.9 | |
| 02:00 | 10 | |
| 01:00 | 23.8 | |
| Wednesday, 9/30 | ||
| 00:00 | 34.8 | |
| 23:00 | 33.7 | |
| 22:00 | 20.1 | |
| 21:00 | 23.5 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 41.9 | provisional |
| Mon, 10/5 | 28.1 | provisional |
| Sun, 10/4 | 28.6 | provisional |
| Sat, 10/3 | 30.8 | provisional |
| Fri, 10/2 | 31.6 | provisional |
| Thu, 10/1 | 23.1 | provisional |
| Wed, 9/30 | 18.4 | provisional |
| Tue, 9/29 | 25.2 | provisional |
| Mon, 9/28 | 23.7 | provisional |
| Sun, 9/27 | 21.6 | provisional |
| Sat, 9/26 | 22.5 | provisional |
| Fri, 9/25 | 19.7 | provisional |
| Thu, 9/24 | 19.4 | provisional |
| Wed, 9/23 | 11.2 | provisional |
| Tue, 9/22 | 8.8 | provisional |
| Mon, 9/21 | 8.7 | provisional |
| Sun, 9/20 | 31 | provisional |
| Sat, 9/19 | 28.7 | provisional |
| Fri, 9/18 | 24.3 | provisional |
| Thu, 9/17 | 17.8 | provisional |
| Wed, 9/16 | 35.2 | provisional |
| Tue, 9/15 | 23 | provisional |
| Mon, 9/14 | 17.5 | provisional |
| Sun, 9/13 | 29.9 | provisional |
| Sat, 9/12 | 21.2 | provisional |
| Fri, 9/11 | 12.8 | provisional |
| Thu, 9/10 | 14.4 | provisional |
| Wed, 9/9 | 23.6 | provisional |
| Tue, 9/8 | 20.2 | provisional |
| Mon, 9/7 | 12.6 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 30.7 | 13.5 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 20.2 | 21.8 | measured in 100 % of hours · provisional |
| August 2026 | 18.2 | 19.2 | measured in 100 % of hours · provisional |
| July 2026 | 15.5 | too few readings | measured in 100 % of hours · provisional |
| June 2026 | 18.5 | 20.4 | measured in 96 % of hours · provisional |
| May 2026 | 17.6 | too few readings | measured in 77 % of hours · provisional |
| April 2026 | 17.8 | 19.9 | measured in 100 % of hours · provisional |
| March 2026 | 23.6 | 28.1 | measured in 99 % of hours · provisional |
| February 2026 | 22.7 | 25.1 | measured in 100 % of hours · provisional |
| January 2026 | 25 | 23.8 | measured in 100 % of hours · provisional |
| December 2025 | 21.7 | 24 | measured in 100 % of hours · verified |
| November 2025 | 23.3 | 24 | 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 | 0 | 0 |
| Hours above 400 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ (EU limit 40) | 20.2* | 22 | 23.5 |
| Highest daily average, µg/m³ | 57January 13 | 54March 4 | 63February 6 |
| Highest hourly value, µg/m³ | 127January 13 | 136March 8 | 122January 31 |
| Hours measured | 97 % | 95 % | 97 % |
| Days without any reading from the station | 0 | 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.
■ 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 2026 there was 1 such day.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2026 there were 54 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
103.2
Nowµg/m³
Measured at 16:00
44.8
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
55.1
Last 7 daysµg/m³
measured in 100 % of hours · provisional
56.2
Last 30 daysµg/m³
measured in 100 % of hours · provisional
54.1
Last 12 monthsµg/m³
measured in 98 % of hours · provisional
Days in 2026: O₃, 8-hour average above 120 µg/m³
18 days above the limit.
- above the limit
- below the limit
- too few readings for the day
- no O₃ data in the EEA database
Days above the limit with values (18)
- Jun 27 130
- Jun 28 121
- Jul 17 120
- Jul 29 124
- Jul 31 135
- Aug 2 127
- Aug 4 138
- Aug 5 142
- Aug 6 152
- Aug 7 129
- Aug 9 126
- Aug 10 168
- Aug 11 144
- Aug 15 125
- Aug 17 123
- Aug 31 127
- Sep 8 121
- Sep 9 130
Values in µg/m³, limit 120 µg/m³.
Months of 2026
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 77 | 0 |
| February | 0 | 80 | 0 |
| March | 0 | 98 | 0 |
| April | 0 | 119 | 0 |
| May | 0 | 119 | 0 |
| June | 2 above the number allowed | 130 | 0 |
| July | 3 above the number allowed | 135 | 0 |
| August | 11 above the number allowed | 168 | 0 |
| September | 2 above the number allowed | 130 | 0 |
| October up to yesterday | 0 | 106 | 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 | ||
| 18:00 | 92 | model estimate, not counted |
| 17:00 | 103 | model estimate, not counted |
| 16:00 | 102 | model estimate, not counted |
| 15:00 | 110 | |
| 14:00 | 110.7 | |
| 13:00 | 110.1 | |
| 12:00 | 100.8 | |
| 11:00 | 83.5 | |
| 10:00 | 53.9 | |
| 09:00 | 20.3 | |
| 08:00 | 9.4 | |
| 07:00 | 8.6 | |
| 06:00 | 12 | |
| 05:00 | 32.8 | |
| 04:00 | 44.4 | |
| 03:00 | 42.9 | |
| 02:00 | 31.8 | |
| 01:00 | 33.1 | |
| Tuesday, 10/6 | ||
| 00:00 | 31.6 | |
| 23:00 | 25.9 | |
| 22:00 | 13.5 | |
| 21:00 | 11 | |
| 20:00 | 9.4 | |
| 19:00 | 26.7 | |
| 18:00 | 73.6 | |
| 17:00 | 118.8 | |
| 16:00 | 111.5 | |
| 15:00 | 109.4 | |
| 14:00 | 102.3 | |
| 13:00 | 102.8 | |
| 12:00 | 97.6 | |
| 11:00 | 63.7 | |
| 10:00 | 35.2 | |
| 09:00 | 12 | |
| 08:00 | 12.1 | |
| 07:00 | 14.5 | |
| 06:00 | 23.3 | |
| 05:00 | 22.8 | |
| 04:00 | 23.2 | |
| 03:00 | 21.5 | |
| 02:00 | 19.1 | |
| 01:00 | 18.9 | |
| Monday, 10/5 | ||
| 00:00 | 21.9 | |
| 23:00 | 28.6 | |
| 22:00 | 33.9 | |
| 21:00 | 24.1 | |
| 20:00 | 23.9 | |
| 19:00 | 44.9 | |
| 18:00 | 73.5 | |
| 17:00 | 125.9 | |
| 16:00 | 127 | |
| 15:00 | 119.7 | |
| 14:00 | 116.7 | |
| 13:00 | 109 | |
| 12:00 | 79.5 | |
| 11:00 | 59.7 | |
| 10:00 | 38.2 | |
| 09:00 | 19.4 | |
| 08:00 | 10 | |
| 07:00 | 12.8 | |
| 06:00 | 13 | |
| 05:00 | 33.3 | |
| 04:00 | 30.6 | |
| 03:00 | 36 | |
| 02:00 | 39.6 | |
| 01:00 | 34.5 | |
| Sunday, 10/4 | ||
| 00:00 | 20.4 | |
| 23:00 | 12.4 | |
| 22:00 | 19 | |
| 21:00 | 28 | |
| 20:00 | 24.9 | |
| 19:00 | 16.5 | |
| 18:00 | 70.7 | |
| 17:00 | 109.8 | |
| 16:00 | 115 | |
| 15:00 | 113.3 | |
| 14:00 | 110 | |
| 13:00 | 105.4 | |
| 12:00 | 98.4 | |
| 11:00 | 87.5 | |
| 10:00 | 65 | |
| 09:00 | 52.6 | |
| 08:00 | 26.9 | |
| 07:00 | 22.3 | |
| 06:00 | 29.3 | |
| 05:00 | 34.7 | |
| 04:00 | 34.5 | |
| 03:00 | 33.8 | |
| 02:00 | 24 | |
| 01:00 | 16.4 | |
| Saturday, 10/3 | ||
| 00:00 | 20.4 | |
| 23:00 | 19.5 | |
| 22:00 | 49.2 | |
| 21:00 | 76.1 | |
| 20:00 | 36.2 | |
| 19:00 | 32.3 | |
| 18:00 | 96.6 | |
| 17:00 | 122 | |
| 16:00 | 117.5 | |
| 15:00 | 114.3 | |
| 14:00 | 112.4 | |
| 13:00 | 105.2 | |
| 12:00 | 96.1 | |
| 11:00 | 83.1 | |
| 10:00 | 54.9 | |
| 09:00 | 29 | |
| 08:00 | 12.2 | |
| 07:00 | 10.4 | |
| 06:00 | 21.8 | |
| 05:00 | 31.3 | |
| 04:00 | 29.7 | |
| 03:00 | 24.2 | |
| 02:00 | 32.1 | |
| 01:00 | 24.8 | |
| Friday, 10/2 | ||
| 00:00 | 17.7 | |
| 23:00 | 18.6 | |
| 22:00 | 12.8 | |
| 21:00 | 7.7 | |
| 20:00 | 12.4 | |
| 19:00 | 56.5 | |
| 18:00 | 100.7 | |
| 17:00 | 116.2 | |
| 16:00 | 115.6 | |
| 15:00 | 114.1 | |
| 14:00 | 106.9 | |
| 13:00 | 92.8 | |
| 12:00 | 86.5 | |
| 11:00 | 76.7 | |
| 10:00 | 60.1 | |
| 09:00 | 33.9 | |
| 08:00 | 27.2 | |
| 07:00 | 14.3 | |
| 06:00 | 25.6 | |
| 05:00 | 34.3 | |
| 04:00 | 49 | |
| 03:00 | 43.9 | |
| 02:00 | 44.8 | |
| 01:00 | 44.5 | |
| Thursday, 10/1 | ||
| 00:00 | 45.5 | |
| 23:00 | 33.7 | |
| 22:00 | 24.8 | |
| 21:00 | 20.1 | |
| 20:00 | 30.3 | |
| 19:00 | 75.8 | |
| 18:00 | 102.3 | |
| 17:00 | 113 | |
| 16:00 | 112.1 | |
| 15:00 | 109.4 | |
| 14:00 | 110.1 | |
| 13:00 | 98.6 | |
| 12:00 | 83.8 | |
| 11:00 | 72.1 | |
| 10:00 | 65.5 | |
| 09:00 | 52.9 | |
| 08:00 | 30.8 | |
| 07:00 | 25.6 | |
| 06:00 | 30.4 | |
| 05:00 | 34 | |
| 04:00 | 40.7 | |
| 03:00 | 49.3 | |
| 02:00 | 55.4 | |
| 01:00 | 47.2 | |
| Wednesday, 9/30 | ||
| 00:00 | 37.6 | |
| 23:00 | 50.3 | |
| 22:00 | 74 | |
| 21:00 | 76.4 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 97.5 | provisional |
| Mon, 10/5 | 101.4 | provisional |
| Sun, 10/4 | 101.3 | provisional |
| Sat, 10/3 | 105.9 | provisional |
| Fri, 10/2 | 101.2 | provisional |
| Thu, 10/1 | 100.6 | provisional |
| Wed, 9/30 | 100.8 | provisional |
| Tue, 9/29 | 86.8 | provisional |
| Mon, 9/28 | 99.9 | provisional |
| Sun, 9/27 | 99.6 | provisional |
| Sat, 9/26 | 92 | provisional |
| Fri, 9/25 | 60.5 | provisional |
| Thu, 9/24 | 76.1 | provisional |
| Wed, 9/23 | 67.7 | provisional |
| Tue, 9/22 | 76.5 | provisional |
| Mon, 9/21 | 77.4 | provisional |
| Sun, 9/20 | 118 | provisional |
| Sat, 9/19 | 108.2 | provisional |
| Fri, 9/18 | 90.9 | provisional |
| Thu, 9/17 | 102.3 | provisional |
| Wed, 9/16 | 105.7 | provisional |
| Tue, 9/15 | 82.8 | provisional |
| Mon, 9/14 | 75.1 | provisional |
| Sun, 9/13 | 95.9 | provisional |
| Sat, 9/12 | 84.3 | provisional |
| Fri, 9/11 | 54.8 | provisional |
| Thu, 9/10 | 77.9 | provisional |
| Wed, 9/9 | 129.7 | above the limit · provisional |
| Tue, 9/8 | 121.3 | above the limit · provisional |
| Mon, 9/7 | 109.9 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 53.9 | 41 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 60 | 42.3 | measured in 100 % of hours · provisional |
| August 2026 | 85.3 | 64.1 | measured in 100 % of hours · provisional |
| July 2026 | 77 | 67.4 | measured in 100 % of hours · provisional |
| June 2026 | 63.9 | 68.7 | measured in 96 % of hours · provisional |
| May 2026 | 78.6 | too few readings | measured in 77 % of hours · provisional |
| April 2026 | 69.4 | 57 | measured in 100 % of hours · provisional |
| March 2026 | 54.4 | 45.8 | measured in 99 % of hours · provisional |
| February 2026 | 41 | 35.2 | measured in 100 % of hours · provisional |
| January 2026 | 43.2 | 29.4 | measured in 100 % of hours · provisional |
| December 2025 | 19.3 | 20.7 | measured in 100 % of hours · verified |
| November 2025 | 24.9 | 23.6 | 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) | 18 | 6 | 10 |
| Annual average, µg/m³ | 63.3* | 45.5 | 46 |
| Highest 8-hour average, µg/m³ | 168August 10 | 131August 9 | 139August 23 |
| Hours measured | 97 % | 97 % | 93 % |
| Days without any reading from the station | 0 | 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.
■ 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 2026
| Day | Highest 8 h | Times the limit |
|---|---|---|
| Aug 10, 2026provisional | 168 | 1.4 × |
| Aug 6, 2026provisional | 152 | 1.3 × |
| Aug 11, 2026provisional | 144 | 1.2 × |
| Aug 5, 2026provisional | 142 | 1.2 × |
| Aug 4, 2026provisional | 138 | 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.
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: 1
1 outage, 25 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 10:00 | 25 hours |
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.