Air at the Dubrovnik station
Dubrovnik, Croatia
Network: Državna mreža za trajno praćenje kvalitete zraka · Station code: HR0045A
This year, up to yesterday (October 6)
27 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: 10 days above the limit, the target value allows 25 as a three-year average.
1 day
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 12, 2026, O₃ 154 µg/m³ as a daily average, 1.3 times the limit.
Daily average for 276 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
Poor
Air now · Measured at 15:00
Latest values
Latest value: 15:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 24 µg/m³ | Fair |
| NO₂ | 3.3 µg/m³ | Good |
| O₃ | 126.7 µg/m³ | Poor |
How the air is changing
Over the last seven days there was more PM10, PM2.5, NO₂, and O₃ in the air than the week before.
- PM10: average 15.6 µg/m³, week before 7.7 µg/m³
- PM2.5: average 10.1 µg/m³, week before 4.8 µg/m³
- NO₂: average 11.8 µg/m³, week before 7.2 µg/m³
- O₃: average 87.3 µg/m³, week before 78.8 µg/m³
Last month there was less PM10, PM2.5, and O₃ in the air than the month before.
- PM10: average 15.5 µg/m³, month before 21.9 µg/m³
- PM2.5: average 10.3 µg/m³, month before 13.3 µg/m³
- NO₂: average 8.9 µg/m³, month before 9.5 µg/m³
- O₃: average 83.5 µg/m³, month before 99.4 µg/m³
Show
Particulate matter PM10
24
Nowµg/m³
Measured at 15:00
16.7
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
15.6
Last 7 daysµg/m³
measured in 100 % of hours · provisional
13.6
Last 30 daysµg/m³
measured in 96 % of hours · provisional
13.9
Last 12 monthsµg/m³
measured in 95 % of hours · provisional
Days in 2026: PM10, daily average above 50 µg/m³
1 day above the limit.
- above the limit
- below the limit
- too few readings for the day
- no PM10 data in the EEA database
Days above the limit with values (1)
- Aug 31 57
Values in µg/m³, limit 50 µg/m³.
Months of 2026
| Month | Days above 50 | Highest day | No readings |
|---|---|---|---|
| January | 0 | 38 | 0 |
| February | 0 | 32 | 0 |
| March | 0 | 25 | 0 |
| April | 0 | 34 | 0 |
| May | 0 | 22 | 0 |
| June | 0 | 23 | 0 |
| July | 0 | 37 | 0 |
| August | 1 above the number allowed | 57 | 0 |
| September | 0 | 43 | 0 |
| October up to yesterday | 0 | 21 | 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 | ||
| 17:00 | 23 | model estimate, not counted |
| 16:00 | 23 | model estimate, not counted |
| 15:00 | 23 | model estimate, not counted |
| 14:00 | 19.3 | |
| 13:00 | 17.3 | |
| 12:00 | 14.1 | |
| 11:00 | 13.1 | |
| 10:00 | 14.5 | |
| 09:00 | 33 | |
| 08:00 | 15.6 | |
| 07:00 | 13.4 | |
| 06:00 | 12.5 | |
| 05:00 | 13 | |
| 04:00 | 12.7 | |
| 03:00 | 12.5 | |
| 02:00 | 12.9 | |
| 01:00 | 14.5 | |
| Tuesday, 10/6 | ||
| 00:00 | 15.5 | |
| 23:00 | 15.9 | |
| 22:00 | 19.5 | |
| 21:00 | 24.7 | |
| 20:00 | 22.6 | |
| 19:00 | 16.8 | |
| 18:00 | 13.5 | |
| 17:00 | 11.8 | |
| 16:00 | 11.8 | |
| 15:00 | 12.4 | |
| 14:00 | 12.3 | |
| 13:00 | 11.7 | |
| 12:00 | 14.3 | |
| 11:00 | 17.4 | |
| 10:00 | 23.1 | |
| 09:00 | 25.4 | |
| 08:00 | 18.5 | |
| 07:00 | 15.8 | |
| 06:00 | 15.4 | |
| 05:00 | 16.4 | |
| 04:00 | 18.2 | |
| 03:00 | 18.1 | |
| 02:00 | 17.3 | |
| 01:00 | 17 | |
| Monday, 10/5 | ||
| 00:00 | 16.6 | |
| 23:00 | 16.3 | |
| 22:00 | 19.9 | |
| 21:00 | 20.3 | |
| 20:00 | 19.1 | |
| 19:00 | 14 | |
| 18:00 | 12.7 | |
| 17:00 | 10.4 | |
| 16:00 | 10.6 | |
| 15:00 | 11.5 | |
| 14:00 | 10.8 | |
| 13:00 | 11 | |
| 12:00 | 15.2 | |
| 11:00 | 17.9 | |
| 10:00 | 20.4 | |
| 09:00 | 23.1 | |
| 08:00 | 19.5 | |
| 07:00 | 17.1 | |
| 06:00 | 17.8 | |
| 05:00 | 16.6 | |
| 04:00 | 14.8 | |
| 03:00 | 14.3 | |
| 02:00 | 14.3 | |
| 01:00 | 14.3 | |
| Sunday, 10/4 | ||
| 00:00 | 14.6 | |
| 23:00 | 14.3 | |
| 22:00 | 16 | |
| 21:00 | 18.3 | |
| 20:00 | 15.5 | |
| 19:00 | 12.7 | |
| 18:00 | 12.6 | |
| 17:00 | 11.3 | |
| 16:00 | 12.1 | |
| 15:00 | 15.2 | |
| 14:00 | 17.1 | |
| 13:00 | 17.8 | |
| 12:00 | 18.5 | |
| 11:00 | 23.2 | |
| 10:00 | 23 | |
| 09:00 | 29.1 | |
| 08:00 | 34.1 | |
| 07:00 | 33.1 | |
| 06:00 | 27.5 | |
| 05:00 | 32.1 | |
| 04:00 | 33.1 | |
| 03:00 | 24.3 | |
| 02:00 | 22.7 | |
| 01:00 | 15.8 | |
| Saturday, 10/3 | ||
| 00:00 | 14.6 | |
| 23:00 | 15.8 | |
| 22:00 | 17.9 | |
| 21:00 | 18.8 | |
| 20:00 | 16.1 | |
| 19:00 | 15.8 | |
| 18:00 | 15.2 | |
| 17:00 | 16.3 | |
| 16:00 | 15.7 | |
| 15:00 | 15.1 | |
| 14:00 | 12.6 | |
| 13:00 | 12.6 | |
| 12:00 | 12 | |
| 11:00 | 11.8 | |
| 10:00 | 11.7 | |
| 09:00 | 13.3 | |
| 08:00 | 14.8 | |
| 07:00 | 13 | |
| 06:00 | 10.9 | |
| 05:00 | 11.5 | |
| 04:00 | 10.5 | |
| 03:00 | 11.7 | |
| 02:00 | 11.7 | |
| 01:00 | 12.7 | |
| Friday, 10/2 | ||
| 00:00 | 11.6 | |
| 23:00 | 12.4 | |
| 22:00 | 21.4 | |
| 21:00 | 20.4 | |
| 20:00 | 19 | |
| 19:00 | 14 | |
| 18:00 | 12.7 | |
| 17:00 | 13 | |
| 16:00 | 12.7 | |
| 15:00 | 12.4 | |
| 14:00 | 11.7 | |
| 13:00 | 14.6 | |
| 12:00 | 16.7 | |
| 11:00 | 17.2 | |
| 10:00 | 18.7 | |
| 09:00 | 19.2 | |
| 08:00 | 19.3 | |
| 07:00 | 15.8 | |
| 06:00 | 10.6 | |
| 05:00 | 9.8 | |
| 04:00 | 9.6 | |
| 03:00 | 10.5 | |
| 02:00 | 12.2 | |
| 01:00 | 9.8 | |
| Thursday, 10/1 | ||
| 00:00 | 10.6 | |
| 23:00 | 17.5 | |
| 22:00 | 19.3 | |
| 21:00 | 19.7 | |
| 20:00 | 18.3 | |
| 19:00 | 18.1 | |
| 18:00 | 16.4 | |
| 17:00 | 14.5 | |
| 16:00 | 12.9 | |
| 15:00 | 12.2 | |
| 14:00 | 12.1 | |
| 13:00 | 12 | |
| 12:00 | 13.1 | |
| 11:00 | 13.3 | |
| 10:00 | 14.4 | |
| 09:00 | 15.9 | |
| 08:00 | 13.7 | |
| 07:00 | 12.7 | |
| 06:00 | 12 | |
| 05:00 | 11.8 | |
| 04:00 | 11.5 | |
| 03:00 | 10.5 | |
| 02:00 | 11.5 | |
| 01:00 | 13.9 | |
| Wednesday, 9/30 | ||
| 00:00 | 15 | |
| 23:00 | 16.3 | |
| 22:00 | 17.1 | |
| 21:00 | 17.4 | |
| 20:00 | 13.7 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 16.9 | provisional |
| Mon, 10/5 | 15.8 | provisional |
| Sun, 10/4 | 20.6 | provisional |
| Sat, 10/3 | 13.8 | provisional |
| Fri, 10/2 | 14.4 | provisional |
| Thu, 10/1 | 14.1 | provisional |
| Wed, 9/30 | 13.4 | provisional |
| Tue, 9/29 | 12.7 | provisional |
| Mon, 9/28 | 9.9 | provisional |
| Sun, 9/27 | 7.6 | provisional |
| Sat, 9/26 | 7 | provisional |
| Fri, 9/25 | 4.2 | provisional |
| Thu, 9/24 | 6.3 | provisional |
| Wed, 9/23 | 5.6 | provisional |
| Tue, 9/22 | 7.7 | provisional |
| Mon, 9/21 | 12.2 | provisional |
| Sun, 9/20 | 11.3 | provisional |
| Sat, 9/19 | 6.5 | provisional |
| Fri, 9/18 | 9.1 | provisional |
| Thu, 9/17 | 7.6 | provisional |
| Wed, 9/16 | 8.8 | provisional |
| Tue, 9/15 | 8.7 | provisional |
| Mon, 9/14 | 7.8 | provisional |
| Sun, 9/13 | 9.5 | provisional |
| Sat, 9/12 | 11.9 | provisional |
| Fri, 9/11 | 19.5 | provisional |
| Thu, 9/10 | 26.3 | provisional |
| Wed, 9/9 | 29.5 | provisional |
| Tue, 9/8 | 35.8 | provisional |
| Mon, 9/7 | 40.2 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 15.9 | 8.9 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 15.5 | 17.3 | measured in 94 % of hours · provisional |
| August 2026 | 21.9 | too few readings | measured in 90 % of hours · provisional |
| July 2026 | 14.2 | too few readings | measured in 92 % of hours · provisional |
| June 2026 | 13.7 | 17.4 | measured in 79 % of hours · provisional |
| May 2026 | 9.8 | 14.8 | measured in 92 % of hours · provisional |
| April 2026 | 13.5 | 14.2 | measured in 94 % of hours · provisional |
| March 2026 | 15.5 | 23 | measured in 98 % of hours · provisional |
| February 2026 | 8.2 | 19.8 | measured in 100 % of hours · provisional |
| January 2026 | 12.2 | 16.9 | measured in 100 % of hours · provisional |
| December 2025 | 13.5 | 9 | measured in 100 % of hours · verified |
| November 2025 | 12 | 20.2 | 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) | 1 | ≥ 1² | 7 |
| Annual average, µg/m³ (EU limit 40) | 13.9* | 16.7 | 18.6 |
| Highest daily average, µg/m³ | 57August 31 | 66March 15 | 103March 27 |
| Highest hourly value, µg/m³ | 107September 6 | 355December 16 | 196March 27 |
| Hours measured | 93 % | 91 % | 98 % |
| Days without any reading from the station | 0 | 20 | 1 |
* 2026 up to October 6; the average since the start of the year is not yet an annual average.
The monitoring networks have not yet finally verified this year’s data. The EEA publishes verified values once a year.
≥ means at least: more than a tenth of the days or hours are missing, so the real number may be higher.
² Too few readings to compare with the number allowed: the figure covers only what was measured.
Unverified hourly values of particulate matter from 975 µg/m³ up, and single spikes from 500 µg/m³ up between low values, count as missing. In the verified data for BiH from 2023 to 2025 no hour was above 600 µg/m³.
■ and a figure in red: more than is allowed for the whole year.
Compared with the new EU rules and the WHO recommendation
This is not the yardstick for the verdict above, only a comparison. From 2030 the EU tightens its limits (Directive (EU) 2024/2881), and since 2021 the World Health Organization has recommended even lower values.
- EU from 2030: daily 45 µg/m³, 18 days allowed. In 2026 there was 1 such day.
- WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2026 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.
The worst days of 2026
| Day | Average | Times the limit |
|---|---|---|
| Aug 31, 2026provisional | 57 | 1.1 × |
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 13 % of hours · provisional
10.1
Last 7 daysµg/m³
measured in 98 % of hours · provisional
9.4
Last 30 daysµg/m³
measured in 95 % of hours · provisional
8.5
Last 12 monthsµg/m³
measured in 94 % of hours · provisional
Months of 2026
| Month | Highest day | No readings |
|---|---|---|
| January | 26 | 0 |
| February | 20 | 0 |
| March | 18 | 0 |
| April | 20 | 0 |
| May | 15 | 0 |
| June | 16 | 0 |
| July | 22 | 0 |
| August | 29 | 0 |
| September | 31 | 0 |
| October up to yesterday | 16 | 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 | ||
| 21:00 | 19.6 | |
| 20:00 | 17.1 | |
| 19:00 | 11.3 | |
| 18:00 | 9.7 | |
| 17:00 | 8.7 | |
| 16:00 | 8.8 | |
| 15:00 | 9.3 | |
| 14:00 | 9 | |
| 13:00 | 9 | |
| 12:00 | 10.2 | |
| 11:00 | 11.3 | |
| 10:00 | 11.6 | |
| 09:00 | 15.8 | |
| 08:00 | 14 | |
| 07:00 | 12.4 | |
| 06:00 | 12.1 | |
| 05:00 | 12.8 | |
| 04:00 | 14.1 | |
| 03:00 | 13.8 | |
| 02:00 | 12.9 | |
| 01:00 | 12.5 | |
| Monday, 10/5 | ||
| 00:00 | 11.5 | |
| 23:00 | 11.7 | |
| 22:00 | 15.2 | |
| 21:00 | 16.3 | |
| 20:00 | 14.2 | |
| 19:00 | 9.8 | |
| 18:00 | 8.7 | |
| 17:00 | 7.5 | |
| 16:00 | 7 | |
| 15:00 | 7.2 | |
| 14:00 | 7.3 | |
| 13:00 | 7.5 | |
| 12:00 | 9.7 | |
| 11:00 | 11.8 | |
| 10:00 | 11.8 | |
| 09:00 | 17 | |
| 08:00 | 15.9 | |
| 07:00 | 14.2 | |
| 06:00 | 14.8 | |
| 05:00 | 13.8 | |
| 04:00 | 11.9 | |
| 03:00 | 11.5 | |
| 02:00 | 11.2 | |
| 01:00 | 11.3 | |
| Sunday, 10/4 | ||
| 00:00 | 11 | |
| 23:00 | 11.3 | |
| 22:00 | 12 | |
| 21:00 | 12.6 | |
| 20:00 | 10.2 | |
| 19:00 | 7.9 | |
| 18:00 | 8.1 | |
| 17:00 | 7.4 | |
| 16:00 | 8.1 | |
| 15:00 | 11.6 | |
| 14:00 | 12.5 | |
| 13:00 | 12.7 | |
| 12:00 | 12.9 | |
| 11:00 | 16.2 | |
| 10:00 | 16.3 | |
| 09:00 | 22.9 | |
| 08:00 | 29.2 | |
| 07:00 | 28.3 | |
| 06:00 | 23.2 | |
| 05:00 | 27.9 | |
| 04:00 | 28.7 | |
| 03:00 | 20.1 | |
| 02:00 | 17.7 | |
| 01:00 | 11.7 | |
| Saturday, 10/3 | ||
| 00:00 | 10.9 | |
| 23:00 | 12 | |
| 22:00 | 13.4 | |
| 21:00 | 12.7 | |
| 20:00 | 10 | |
| 19:00 | 9 | |
| 18:00 | 9.1 | |
| 17:00 | 7.8 | |
| 16:00 | 6.9 | |
| 15:00 | 7 | |
| 14:00 | 6.4 | |
| 13:00 | 5.8 | |
| 12:00 | 5.6 | |
| 11:00 | 4.8 | |
| 10:00 | 5.2 | |
| 09:00 | 6.7 | |
| 08:00 | 7.9 | |
| 07:00 | 8.2 | |
| 06:00 | 6.8 | |
| 05:00 | 7.3 | |
| 04:00 | 6.9 | |
| 03:00 | 7.2 | |
| 02:00 | 6.1 | |
| 01:00 | 5.7 | |
| Friday, 10/2 | ||
| 00:00 | 4.9 | |
| 23:00 | 5.8 | |
| 22:00 | 13.9 | |
| 21:00 | 11.4 | |
| 20:00 | 9.2 | |
| 19:00 | 6.7 | |
| 18:00 | 6.3 | |
| 17:00 | 6.9 | |
| 16:00 | 7.3 | |
| 15:00 | 6.9 | |
| 14:00 | 6.7 | |
| 13:00 | 8.4 | |
| 12:00 | 8.3 | |
| 11:00 | 8.3 | |
| 10:00 | 9.2 | |
| 09:00 | 9.4 | |
| 08:00 | 9.2 | |
| 07:00 | 7.8 | |
| 06:00 | 6.6 | |
| 05:00 | 6.3 | |
| 04:00 | 6 | |
| 03:00 | 6.3 | |
| 02:00 | 7 | |
| 01:00 | 5.7 | |
| Thursday, 10/1 | ||
| 00:00 | 6 | |
| 23:00 | 10 | |
| 22:00 | 11.5 | |
| 21:00 | 11.1 | |
| 20:00 | 9.6 | |
| 19:00 | 8.8 | |
| 18:00 | 8.3 | |
| 17:00 | 7.8 | |
| 16:00 | 7 | |
| 15:00 | 7.1 | |
| 14:00 | 6.9 | |
| 13:00 | 7.3 | |
| 12:00 | 7.4 | |
| 11:00 | 6.1 | |
| 10:00 | 6.8 | |
| 09:00 | 7.5 | |
| 08:00 | 8 | |
| 07:00 | 8 | |
| 06:00 | 7.7 | |
| 05:00 | 7.6 | |
| 04:00 | 7.2 | |
| 03:00 | 6.6 | |
| 02:00 | 6.7 | |
| 01:00 | 8.6 | |
| Wednesday, 9/30 | ||
| 00:00 | 10.1 | |
| 23:00 | 11.1 | |
| 22:00 | 10.7 | |
| 21:00 | 11.6 | |
| 20:00 | 8.4 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 12.2 | provisional |
| Mon, 10/5 | 11.6 | provisional |
| Sun, 10/4 | 15.9 | provisional |
| Sat, 10/3 | 7.9 | provisional |
| Fri, 10/2 | 7.7 | provisional |
| Thu, 10/1 | 7.9 | provisional |
| Wed, 9/30 | 7.6 | provisional |
| Tue, 9/29 | 6.9 | provisional |
| Mon, 9/28 | 6 | provisional |
| Sun, 9/27 | 5.1 | provisional |
| Sat, 9/26 | 5 | provisional |
| Fri, 9/25 | 3.3 | provisional |
| Thu, 9/24 | 4.2 | provisional |
| Wed, 9/23 | 2.8 | provisional |
| Tue, 9/22 | 3 | provisional |
| Mon, 9/21 | 9.2 | provisional |
| Sun, 9/20 | 8.4 | provisional |
| Sat, 9/19 | 4 | provisional |
| Fri, 9/18 | 5.7 | provisional |
| Thu, 9/17 | 5.8 | provisional |
| Wed, 9/16 | 6.8 | provisional |
| Tue, 9/15 | 5.6 | provisional |
| Mon, 9/14 | 5.2 | provisional |
| Sun, 9/13 | 5.9 | provisional |
| Sat, 9/12 | 7.5 | provisional |
| Fri, 9/11 | 13.4 | provisional |
| Thu, 9/10 | 18.6 | provisional |
| Wed, 9/9 | 24.2 | provisional |
| Tue, 9/8 | 28.9 | provisional |
| Mon, 9/7 | 31.1 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 10.5 | 4 | measured in 98 % of hours · provisional · year before: same days |
| September 2026 | 10.3 | 6.6 | measured in 94 % of hours · provisional |
| August 2026 | 13.3 | too few readings | measured in 90 % of hours · provisional |
| July 2026 | 8.3 | too few readings | measured in 92 % of hours · provisional |
| June 2026 | 8.4 | 9 | measured in 79 % of hours · provisional |
| May 2026 | 6.3 | 6.5 | measured in 92 % of hours · provisional |
| April 2026 | 8.5 | 6.7 | measured in 94 % of hours · provisional |
| March 2026 | 11.9 | 12 | measured in 98 % of hours · provisional |
| February 2026 | 6 | 11.6 | measured in 100 % of hours · provisional |
| January 2026 | 8.4 | 8.8 | measured in 100 % of hours · provisional |
| December 2025 | 6.5 | 4.4 | measured in 100 % of hours · verified |
| November 2025 | 5.7 | 6.8 | measured in 96 % of hours · verified |
PM2.5 by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Annual average, µg/m³ (EU limit 25) | 9.1* | too few | 7.4 |
| Highest daily average, µg/m³ | 31September 7 | 33March 15 | 31March 27 |
| Highest hourly value, µg/m³ | 69September 7 | 66May 2 | 49March 27 |
| Hours measured | 93 % | 90 % | 95 % |
| Days without any reading from the station | 0 | 20 | 1 |
* 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 2026 there were 5 such days.
- WHO 2021: daily 15 µg/m³, at most three to four days a year. In 2026 there were 30 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.
Nitrogen dioxide NO₂
3.3
Nowµg/m³
Measured at 15:00
22.9
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
11.8
Last 7 daysµg/m³
measured in 100 % of hours · provisional
9.4
Last 30 daysµg/m³
measured in 96 % of hours · provisional
6.8
Last 12 monthsµg/m³
measured in 91 % 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
Months of 2026
| Month | Days with an hour above 200 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 9 | 0 |
| February | 0 | 0 | 9 | 0 |
| March | 0 | 0 | 10 | 0 |
| April | 0 | 0 | 17 | 0 |
| May | 0 | 0 | 12 | 0 |
| June | 0 | 0 | 16 | 0 |
| July | 0 | 0 | 14 | 0 |
| August | 0 | 0 | 17 | 0 |
| September | 0 | 0 | 19 | 0 |
| October up to yesterday | 0 | 0 | 20 | 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 | ||
| 17:00 | 9 | model estimate, not counted |
| 16:00 | 9 | model estimate, not counted |
| 15:00 | 9 | model estimate, not counted |
| 14:00 | 2.2 | |
| 13:00 | 3.1 | |
| 12:00 | 4.3 | |
| 11:00 | 5.5 | |
| 10:00 | 9.9 | |
| 09:00 | 33.4 | |
| 08:00 | 27.8 | |
| 07:00 | 10.4 | |
| 06:00 | 6.3 | |
| 05:00 | 4.6 | |
| 04:00 | 5.1 | |
| 03:00 | 5.9 | |
| 02:00 | 8.6 | |
| 01:00 | 17.1 | |
| Tuesday, 10/6 | ||
| 00:00 | 46.4 | |
| 23:00 | 66.4 | |
| 22:00 | 70.7 | |
| 21:00 | 86.3 | |
| 20:00 | 35.2 | |
| 19:00 | 8.4 | |
| 18:00 | 2 | |
| 17:00 | 2.6 | |
| 16:00 | 1.7 | |
| 15:00 | 2.3 | |
| 14:00 | 2.6 | |
| 13:00 | 2.4 | |
| 12:00 | 4.4 | |
| 11:00 | 6.1 | |
| 10:00 | 14.9 | |
| 09:00 | 50.4 | |
| 08:00 | 36.8 | |
| 07:00 | 6.6 | |
| 06:00 | 4.3 | |
| 05:00 | 4 | |
| 04:00 | 4.1 | |
| 03:00 | 5.1 | |
| 02:00 | 5.4 | |
| 01:00 | 8.1 | |
| Monday, 10/5 | ||
| 00:00 | 13.5 | |
| 23:00 | 22.6 | |
| 22:00 | 65.9 | |
| 21:00 | 68.5 | |
| 20:00 | 35 | |
| 19:00 | 3.1 | |
| 18:00 | 3.4 | |
| 17:00 | 1.7 | |
| 16:00 | 2 | |
| 15:00 | 2.3 | |
| 14:00 | 2.1 | |
| 13:00 | 2.3 | |
| 12:00 | 5.6 | |
| 11:00 | 6.7 | |
| 10:00 | 13.2 | |
| 09:00 | 29.1 | |
| 08:00 | 15.2 | |
| 07:00 | 7.4 | |
| 06:00 | 5.2 | |
| 05:00 | 5.6 | |
| 04:00 | 4.2 | |
| 03:00 | 4.5 | |
| 02:00 | 4.6 | |
| 01:00 | 7.3 | |
| Sunday, 10/4 | ||
| 00:00 | 7.1 | |
| 23:00 | 19.7 | |
| 22:00 | 26.8 | |
| 21:00 | 48.4 | |
| 20:00 | 15.1 | |
| 19:00 | 2.6 | |
| 18:00 | 3.2 | |
| 17:00 | 2.3 | |
| 16:00 | 2 | |
| 15:00 | 2.9 | |
| 14:00 | 4.7 | |
| 13:00 | 3.8 | |
| 12:00 | 4.2 | |
| 11:00 | 24.6 | |
| 10:00 | 15.7 | |
| 09:00 | 50.3 | |
| 08:00 | 63.7 | |
| 07:00 | 10.9 | |
| 06:00 | 5.6 | |
| 05:00 | 5.8 | |
| 04:00 | 5.1 | |
| 03:00 | 4.8 | |
| 02:00 | 5.9 | |
| 01:00 | 8.4 | |
| Saturday, 10/3 | ||
| 00:00 | 9.8 | |
| 23:00 | 11.6 | |
| 22:00 | 12.6 | |
| 21:00 | 20.9 | |
| 20:00 | 8.3 | |
| 19:00 | 2.4 | |
| 18:00 | 3.7 | |
| 17:00 | 2.9 | |
| 16:00 | 2.2 | |
| 15:00 | 2.3 | |
| 14:00 | 2.1 | |
| 13:00 | 2.1 | |
| 12:00 | 5 | |
| 11:00 | 5.8 | |
| 10:00 | 7.2 | |
| 09:00 | 6.9 | |
| 08:00 | 4.9 | |
| 07:00 | 3.9 | |
| 06:00 | 2.6 | |
| 05:00 | 2.6 | |
| 04:00 | 2.5 | |
| 03:00 | 2.8 | |
| 02:00 | 2.7 | |
| 01:00 | 2.9 | |
| Friday, 10/2 | ||
| 00:00 | 3.4 | |
| 23:00 | 7.5 | |
| 22:00 | 86.5 | |
| 21:00 | 76.1 | |
| 20:00 | 16.2 | |
| 19:00 | 2 | |
| 18:00 | 2.3 | |
| 17:00 | 1.9 | |
| 16:00 | 2.1 | |
| 15:00 | 2.5 | |
| 14:00 | 2 | |
| 13:00 | 2.7 | |
| 12:00 | 6.8 | |
| 11:00 | 8.4 | |
| 10:00 | 13.6 | |
| 09:00 | 11.4 | |
| 08:00 | 11.9 | |
| 07:00 | 6.4 | |
| 06:00 | 5.2 | |
| 05:00 | 4.8 | |
| 04:00 | 4.4 | |
| 03:00 | 4.1 | |
| 02:00 | 3.9 | |
| 01:00 | 5.2 | |
| Thursday, 10/1 | ||
| 00:00 | 6.6 | |
| 23:00 | 10.4 | |
| 22:00 | 32 | |
| 21:00 | 50.3 | |
| 20:00 | 5.6 | |
| 19:00 | 2.4 | |
| 18:00 | 1.8 | |
| 17:00 | 2.1 | |
| 16:00 | 1.8 | |
| 15:00 | 1.9 | |
| 14:00 | 1.7 | |
| 13:00 | 2.6 | |
| 12:00 | 5.3 | |
| 11:00 | 8.1 | |
| 10:00 | 9.1 | |
| 09:00 | 11.3 | |
| 08:00 | 10.1 | |
| 07:00 | 7.7 | |
| 06:00 | 3.6 | |
| 05:00 | 2.9 | |
| 04:00 | 2.4 | |
| 03:00 | 2.6 | |
| 02:00 | 2.7 | |
| 01:00 | 9.8 | |
| Wednesday, 9/30 | ||
| 00:00 | 16.5 | |
| 23:00 | 28.1 | |
| 22:00 | 25 | |
| 21:00 | 60.4 | |
| 20:00 | 9.5 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 19.9 | provisional |
| Mon, 10/5 | 13.8 | provisional |
| Sun, 10/4 | 14.3 | provisional |
| Sat, 10/3 | 5.4 | provisional |
| Fri, 10/2 | 12.1 | provisional |
| Thu, 10/1 | 8.1 | provisional |
| Wed, 9/30 | 9.2 | provisional |
| Tue, 9/29 | 6 | provisional |
| Mon, 9/28 | 12.6 | provisional |
| Sun, 9/27 | 6.9 | provisional |
| Sat, 9/26 | 3.3 | provisional |
| Fri, 9/25 | 5 | provisional |
| Thu, 9/24 | 9.5 | provisional |
| Wed, 9/23 | 6.7 | provisional |
| Tue, 9/22 | 5.9 | provisional |
| Mon, 9/21 | 9.3 | provisional |
| Sun, 9/20 | 14.2 | provisional |
| Sat, 9/19 | 13.1 | provisional |
| Fri, 9/18 | 9.7 | provisional |
| Thu, 9/17 | 18.7 | provisional |
| Wed, 9/16 | 9 | provisional |
| Tue, 9/15 | 6.9 | provisional |
| Mon, 9/14 | 4.5 | provisional |
| Sun, 9/13 | 6.2 | provisional |
| Sat, 9/12 | 5.1 | provisional |
| Fri, 9/11 | 2.6 | provisional |
| Thu, 9/10 | 8.4 | provisional |
| Wed, 9/9 | 9.1 | provisional |
| Tue, 9/8 | 13.9 | provisional |
| Mon, 9/7 | 12.1 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 12.3 | 5.3 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 8.9 | 9.1 | measured in 94 % of hours · provisional |
| August 2026 | 9.5 | too few readings | measured in 90 % of hours · provisional |
| July 2026 | 8.2 | 9.2 | measured in 92 % of hours · provisional |
| June 2026 | 6.5 | 8.6 | measured in 89 % of hours · provisional |
| May 2026 | 5.9 | 4.8 | measured in 92 % of hours · provisional |
| April 2026 | 5 | 5 | measured in 94 % of hours · provisional |
| March 2026 | 5.5 | 3.6 | measured in 98 % of hours · provisional |
| February 2026 | 4.4 | 5.8 | measured in 100 % of hours · provisional |
| January 2026 | 4.2 | 5.5 | measured in 100 % of hours · provisional |
| December 2025 | 7 | 5.8 | measured in 96 % of hours · verified |
| November 2025 | too few readings | too few readings | measured in 50 % 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) | 6.6* | too few | 6.7 |
| Highest daily average, µg/m³ | 20October 6 | 25July 20 | 21August 1 |
| Highest hourly value, µg/m³ | 122August 3 | 100June 14 | 118July 31 |
| Hours measured | 94 % | 88 % | 93 % |
| Days without any reading from the station | 0 | 20 | 1 |
* 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.
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 were 0 such days.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2026 there were 0 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
126.7
Nowµg/m³
Measured at 15:00
82.7
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
87.3
Last 7 daysµg/m³
measured in 100 % of hours · provisional
83.7
Last 30 daysµg/m³
measured in 96 % of hours · provisional
82.3
Last 12 monthsµg/m³
measured in 96 % of hours · provisional
Days in 2026: O₃, 8-hour average above 120 µg/m³
27 days above the limit.
- above the limit
- below the limit
- too few readings for the day
Days above the limit with values (27)
- Apr 19 126
- Apr 24 124
- Apr 27 134
- Apr 28 122
- May 5 122
- May 20 122
- May 24 131
- May 25 121
- May 26 129
- May 30 131
- Jun 1 122
- Jun 23 122
- Jun 27 136
- Jul 1 125
- Jul 5 123
- Jul 12 122
- Jul 30 124
- Aug 8 146
- Aug 9 129
- Aug 12 154
- Aug 13 132
- Aug 14 143
- Aug 15 123
- Aug 23 122
- Aug 24 121
- Aug 26 122
- Sep 4 125
Values in µg/m³, limit 120 µg/m³.
Months of 2026
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 101 | 0 |
| February | 0 | 97 | 0 |
| March | 0 | 115 | 0 |
| April | 4 above the number allowed | 134 | 0 |
| May | 6 above the number allowed | 131 | 0 |
| June | 3 above the number allowed | 136 | 0 |
| July | 4 above the number allowed | 125 | 0 |
| August | 9 above the number allowed | 154 | 0 |
| September | 1 above the number allowed | 125 | 0 |
| October up to yesterday | 0 | 117 | 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 | ||
| 17:00 | 90 | model estimate, not counted |
| 16:00 | 89 | model estimate, not counted |
| 15:00 | 88 | model estimate, not counted |
| 14:00 | 122.2 | |
| 13:00 | 117.2 | |
| 12:00 | 115.5 | |
| 11:00 | 110.3 | |
| 10:00 | 95.5 | |
| 09:00 | 63 | |
| 08:00 | 78.1 | |
| 07:00 | 89.9 | |
| 06:00 | 95.8 | |
| 05:00 | 102.8 | |
| 04:00 | 101.4 | |
| 03:00 | 97.8 | |
| 02:00 | 96.5 | |
| 01:00 | 81.1 | |
| Tuesday, 10/6 | ||
| 00:00 | 52.5 | |
| 23:00 | 32.7 | |
| 22:00 | 28.4 | |
| 21:00 | 12.7 | |
| 20:00 | 63.7 | |
| 19:00 | 97.7 | |
| 18:00 | 112.9 | |
| 17:00 | 113 | |
| 16:00 | 114.7 | |
| 15:00 | 118.3 | |
| 14:00 | 119.1 | |
| 13:00 | 117.1 | |
| 12:00 | 112.3 | |
| 11:00 | 102.3 | |
| 10:00 | 84.9 | |
| 09:00 | 38 | |
| 08:00 | 56.1 | |
| 07:00 | 93.8 | |
| 06:00 | 95.7 | |
| 05:00 | 97.3 | |
| 04:00 | 95.4 | |
| 03:00 | 96.3 | |
| 02:00 | 98.6 | |
| 01:00 | 97.6 | |
| Monday, 10/5 | ||
| 00:00 | 95.7 | |
| 23:00 | 82.5 | |
| 22:00 | 40.3 | |
| 21:00 | 34.1 | |
| 20:00 | 66.7 | |
| 19:00 | 112.6 | |
| 18:00 | 110.2 | |
| 17:00 | 115.4 | |
| 16:00 | 112.7 | |
| 15:00 | 116.5 | |
| 14:00 | 115.5 | |
| 13:00 | 110.8 | |
| 12:00 | 105.1 | |
| 11:00 | 97 | |
| 10:00 | 80.3 | |
| 09:00 | 55.3 | |
| 08:00 | 77.6 | |
| 07:00 | 86.6 | |
| 06:00 | 90.2 | |
| 05:00 | 90.2 | |
| 04:00 | 96.2 | |
| 03:00 | 95.6 | |
| 02:00 | 96.4 | |
| 01:00 | 93.3 | |
| Sunday, 10/4 | ||
| 00:00 | 97.1 | |
| 23:00 | 83.1 | |
| 22:00 | 73.5 | |
| 21:00 | 53.1 | |
| 20:00 | 95.5 | |
| 19:00 | 118.3 | |
| 18:00 | 117 | |
| 17:00 | 120.5 | |
| 16:00 | 120.4 | |
| 15:00 | 125.2 | |
| 14:00 | 125.6 | |
| 13:00 | 110.6 | |
| 12:00 | 95.9 | |
| 11:00 | 69.7 | |
| 10:00 | 57 | |
| 09:00 | 24 | |
| 08:00 | 12.9 | |
| 07:00 | 67.9 | |
| 06:00 | 76.2 | |
| 05:00 | 75 | |
| 04:00 | 79.5 | |
| 03:00 | 82.4 | |
| 02:00 | 81.7 | |
| 01:00 | 80.6 | |
| Saturday, 10/3 | ||
| 00:00 | 84.9 | |
| 23:00 | 83.1 | |
| 22:00 | 84.1 | |
| 21:00 | 77 | |
| 20:00 | 98.4 | |
| 19:00 | 109.9 | |
| 18:00 | 107.1 | |
| 17:00 | 110.1 | |
| 16:00 | 110.1 | |
| 15:00 | 107.6 | |
| 14:00 | 107.8 | |
| 13:00 | 103.7 | |
| 12:00 | 100.5 | |
| 11:00 | 74 | |
| 10:00 | 71.3 | |
| 09:00 | 84.4 | |
| 08:00 | 89.2 | |
| 07:00 | 92.3 | |
| 06:00 | 94 | |
| 05:00 | 94.2 | |
| 04:00 | 95.9 | |
| 03:00 | 95.5 | |
| 02:00 | 95.2 | |
| 01:00 | 94.8 | |
| Friday, 10/2 | ||
| 00:00 | 91.7 | |
| 23:00 | 84.8 | |
| 22:00 | 9.7 | |
| 21:00 | 17.1 | |
| 20:00 | 83.6 | |
| 19:00 | 112.2 | |
| 18:00 | 111.1 | |
| 17:00 | 109.7 | |
| 16:00 | 111.7 | |
| 15:00 | 106.2 | |
| 14:00 | 103.4 | |
| 13:00 | 101.2 | |
| 12:00 | 95.2 | |
| 11:00 | 77 | |
| 10:00 | 72.4 | |
| 09:00 | 78.7 | |
| 08:00 | 75.8 | |
| 07:00 | 81.2 | |
| 06:00 | 80.5 | |
| 05:00 | 81.8 | |
| 04:00 | 82.3 | |
| 03:00 | 83.3 | |
| 02:00 | 89.5 | |
| 01:00 | 85.3 | |
| Thursday, 10/1 | ||
| 00:00 | 78.3 | |
| 23:00 | 82.5 | |
| 22:00 | 56 | |
| 21:00 | 43.3 | |
| 20:00 | 98.2 | |
| 19:00 | 107.6 | |
| 18:00 | 107.7 | |
| 17:00 | 105.4 | |
| 16:00 | 105 | |
| 15:00 | 104.5 | |
| 14:00 | 103 | |
| 13:00 | 104.4 | |
| 12:00 | 96.5 | |
| 11:00 | 72 | |
| 10:00 | 68.3 | |
| 09:00 | 67.8 | |
| 08:00 | 76.7 | |
| 07:00 | 79 | |
| 06:00 | 83.1 | |
| 05:00 | 85.2 | |
| 04:00 | 84.9 | |
| 03:00 | 86 | |
| 02:00 | 86.3 | |
| 01:00 | 72.4 | |
| Wednesday, 9/30 | ||
| 00:00 | 71.3 | |
| 23:00 | 62.7 | |
| 22:00 | 66.2 | |
| 21:00 | 37.4 | |
| 20:00 | 93.4 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 113.7 | provisional |
| Mon, 10/5 | 112.4 | provisional |
| Sun, 10/4 | 116.7 | provisional |
| Sat, 10/3 | 107.1 | provisional |
| Fri, 10/2 | 106.3 | provisional |
| Thu, 10/1 | 104.5 | provisional |
| Wed, 9/30 | 105.1 | provisional |
| Tue, 9/29 | 112.8 | provisional |
| Mon, 9/28 | 99.7 | provisional |
| Sun, 9/27 | 91.7 | provisional |
| Sat, 9/26 | 87.2 | provisional |
| Fri, 9/25 | 80.4 | provisional |
| Thu, 9/24 | 77.7 | provisional |
| Wed, 9/23 | 76.9 | provisional |
| Tue, 9/22 | 82.5 | provisional |
| Mon, 9/21 | 95.6 | provisional |
| Sun, 9/20 | 106.5 | provisional |
| Sat, 9/19 | 96 | provisional |
| Fri, 9/18 | 96.5 | provisional |
| Thu, 9/17 | 84.3 | provisional |
| Wed, 9/16 | 89.1 | provisional |
| Tue, 9/15 | 95.6 | provisional |
| Mon, 9/14 | 112.1 | provisional |
| Sun, 9/13 | 99.2 | provisional |
| Sat, 9/12 | 98.9 | provisional |
| Fri, 9/11 | 114.7 | provisional |
| Thu, 9/10 | 107.3 | provisional |
| Wed, 9/9 | 114 | provisional |
| Tue, 9/8 | 103.2 | provisional |
| Mon, 9/7 | 114.8 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 87.6 | 65.3 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 83.5 | 69.3 | measured in 94 % of hours · provisional |
| August 2026 | 99.4 | too few readings | measured in 90 % of hours · provisional |
| July 2026 | 94.8 | 86.7 | measured in 92 % of hours · provisional |
| June 2026 | 92.7 | 94.4 | measured in 89 % of hours · provisional |
| May 2026 | 99.2 | 89.3 | measured in 92 % of hours · provisional |
| April 2026 | 96.9 | 82.4 | measured in 94 % of hours · provisional |
| March 2026 | 81.8 | 83.6 | measured in 98 % of hours · provisional |
| February 2026 | 76.1 | 74.3 | measured in 100 % of hours · provisional |
| January 2026 | 75.1 | 67.9 | measured in 100 % of hours · provisional |
| December 2025 | 61.1 | 61.5 | measured in 100 % of hours · verified |
| November 2025 | 62.3 | too few readings | 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) | 27 | 10 | ≥ 15² |
| Annual average, µg/m³ | 88.6* | 76.5 | 80.1 |
| Highest 8-hour average, µg/m³ | 154August 12 | 137June 15 | 133August 26 |
| Hours measured | 94 % | 93 % | 91 % |
| Days without any reading from the station | 0 | 20 | 1 |
* 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 worst days of 2026
| Day | Highest 8 h | Times the limit |
|---|---|---|
| Aug 12, 2026provisional | 154 | 1.3 × |
| Aug 8, 2026provisional | 146 | 1.2 × |
| Aug 14, 2026provisional | 143 | 1.2 × |
| Jun 27, 2026provisional | 136 | 1.1 × |
| Apr 27, 2026provisional | 134 | 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.