Air at the Split-1 station
Split, Croatia
Network: Mjerna mreža Cemex Hrvatska d.o.o. · Station code: HR0022A
This year, up to yesterday (October 6)
No exceedance on the measured days. 268 of 279 days were measured.
Daily average for 268 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
There has been no measurement in the last 4 hours.
Last reading 4 hours ago.
Latest values
Latest value: 14:00
| Pollutant | Value | Level |
|---|---|---|
| NO₂ | 6 µg/m³ | no level |
| SO₂ | 3.1 µg/m³ | no level |
How the air is changing
Over the last seven days there was more NO₂ in the air than the week before.
- NO₂: average 30.1 µg/m³, week before 19.6 µg/m³
- SO₂: average 7 µg/m³, week before 7.3 µg/m³
Last month there was less NO₂ in the air than the month before.
- NO₂: average 20.5 µg/m³, month before 31.2 µg/m³
- SO₂: too few readings to compare
Show
Nitrogen dioxide NO₂
no measurement
Now
29.7
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
30.1
Last 7 daysµg/m³
measured in 96 % of hours · provisional
21.1
Last 30 daysµg/m³
measured in 95 % of hours · provisional
21
Last 12 monthsµg/m³
measured in 93 % of hours · provisional
Days in 2026: NO₂, at least one hour above 200 µg/m³
No measured day above the limit. 6 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 2026
| Month | Days with an hour above 200 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 30 | 0 |
| February | 0 | 0 | 38 | 0 |
| March | 0 | 0 | 44 | 0 |
| April | 0 | 0 | 41 | 0 |
| May | 0 | 0 | 36 | 6 |
| June | 0 | 0 | 37 | 0 |
| July | 0 | 0 | 67 | 0 |
| August | 0 | 0 | 65 | 0 |
| September | 0 | 0 | 46 | 0 |
| October up to yesterday | 0 | 0 | 39 | 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 | 10 | model estimate, not counted |
| 16:00 | 11 | model estimate, not counted |
| 15:00 | 10 | model estimate, not counted |
| 14:00 | 6 | |
| 13:00 | 6.4 | |
| 12:00 | 5.5 | |
| 11:00 | 7.3 | |
| 10:00 | 32.6 | |
| 09:00 | 44 | |
| 08:00 | 26.8 | |
| 07:00 | 12.6 | |
| 06:00 | 6.2 | |
| 05:00 | 4.3 | |
| 04:00 | 4.2 | |
| 03:00 | 5.5 | |
| 02:00 | 10.1 | |
| 01:00 | 29.6 | |
| Tuesday, 10/6 | ||
| 00:00 | 61.8 | |
| 23:00 | 57.9 | |
| 22:00 | 87.3 | |
| 21:00 | 96.4 | |
| 20:00 | 51.2 | |
| 19:00 | 37.5 | |
| 18:00 | 34.3 | |
| 17:00 | 32.1 | |
| 15:00 | 24.8 | |
| 14:00 | 10.8 | |
| 13:00 | 11.2 | |
| 12:00 | 10.6 | |
| 11:00 | 25.2 | |
| 10:00 | 32.9 | |
| 09:00 | 37.1 | |
| 08:00 | 34.7 | |
| 07:00 | 14.5 | |
| 06:00 | 8 | |
| 05:00 | 4.7 | |
| 04:00 | 5.4 | |
| 03:00 | 5.2 | |
| 02:00 | 8.1 | |
| 01:00 | 19.2 | |
| Monday, 10/5 | ||
| 00:00 | 52.3 | |
| 23:00 | 83.5 | |
| 22:00 | 71.2 | |
| 21:00 | 62 | |
| 20:00 | 79.9 | |
| 19:00 | 22.3 | |
| 18:00 | 15.5 | |
| 17:00 | 39.9 | |
| 16:00 | 25.4 | |
| 14:00 | 79.8 | |
| 13:00 | 57.2 | |
| 12:00 | 76.1 | |
| 11:00 | 35.5 | |
| 10:00 | 36.2 | |
| 09:00 | 38.3 | |
| 08:00 | 38.6 | |
| 07:00 | 17 | |
| 06:00 | 6.9 | |
| 05:00 | 3.8 | |
| 04:00 | 4.7 | |
| 03:00 | 4.7 | |
| 02:00 | 7.4 | |
| 01:00 | 29.5 | |
| Sunday, 10/4 | ||
| 00:00 | 42.9 | |
| 23:00 | 58 | |
| 22:00 | 39.3 | |
| 21:00 | 58.9 | |
| 20:00 | 54.3 | |
| 19:00 | 102.2 | |
| 18:00 | 47.5 | |
| 17:00 | 11.9 | |
| 16:00 | 12 | |
| 15:00 | 24.3 | |
| 13:00 | 22.2 | |
| 12:00 | 61.7 | |
| 11:00 | 17.5 | |
| 10:00 | 15.4 | |
| 09:00 | 12.4 | |
| 08:00 | 9.2 | |
| 07:00 | 7.3 | |
| 06:00 | 5.1 | |
| 05:00 | 4.9 | |
| 04:00 | 5.8 | |
| 03:00 | 10.7 | |
| 02:00 | 23.9 | |
| 01:00 | 17.7 | |
| Saturday, 10/3 | ||
| 00:00 | 28.5 | |
| 23:00 | 55 | |
| 22:00 | 69.1 | |
| 21:00 | 100.7 | |
| 20:00 | 95.1 | |
| 19:00 | 48.8 | |
| 18:00 | 15.7 | |
| 17:00 | 13.6 | |
| 16:00 | 30.5 | |
| 15:00 | 51.4 | |
| 14:00 | 48.9 | |
| 12:00 | 7.7 | |
| 11:00 | 17 | |
| 10:00 | 17.7 | |
| 09:00 | 17 | |
| 08:00 | 12.1 | |
| 07:00 | 8.7 | |
| 06:00 | 5.5 | |
| 05:00 | 5.1 | |
| 04:00 | 4.2 | |
| 03:00 | 4.8 | |
| 02:00 | 6.2 | |
| 01:00 | 8.2 | |
| Friday, 10/2 | ||
| 00:00 | 9.2 | |
| 23:00 | 23.7 | |
| 22:00 | 73.2 | |
| 21:00 | 80.8 | |
| 20:00 | 31.5 | |
| 19:00 | 25.2 | |
| 18:00 | 28.9 | |
| 17:00 | 22.8 | |
| 16:00 | 50.5 | |
| 15:00 | 64.5 | |
| 14:00 | 53.2 | |
| 13:00 | 23.3 | |
| 11:00 | 14.7 | |
| 10:00 | 30.4 | |
| 09:00 | 34.7 | |
| 08:00 | 31.6 | |
| 07:00 | 15.4 | |
| 06:00 | 5 | |
| 05:00 | 4 | |
| 04:00 | 3.9 | |
| 03:00 | 4.3 | |
| 02:00 | 7.6 | |
| 01:00 | 20.7 | |
| Thursday, 10/1 | ||
| 00:00 | 37.1 | |
| 23:00 | 37.3 | |
| 22:00 | 39.1 | |
| 21:00 | 80.3 | |
| 20:00 | 83.5 | |
| 19:00 | 67.1 | |
| 18:00 | 22.8 | |
| 17:00 | 20.8 | |
| 16:00 | 21.6 | |
| 15:00 | 41.5 | |
| 14:00 | 43 | |
| 13:00 | 42.3 | |
| 12:00 | 13.8 | |
| 10:00 | 27.5 | |
| 09:00 | 29.1 | |
| 08:00 | 29.9 | |
| 07:00 | 12.4 | |
| 06:00 | 6.2 | |
| 05:00 | 4.8 | |
| 04:00 | 4.3 | |
| 03:00 | 5.1 | |
| 02:00 | 6.8 | |
| 01:00 | 10.9 | |
| Wednesday, 9/30 | ||
| 00:00 | 29.4 | |
| 23:00 | 28.9 | |
| 22:00 | 59.5 | |
| 21:00 | 41 | |
| 20:00 | 28.9 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 30.9 | provisional |
| Mon, 10/5 | 38.6 | provisional |
| Sun, 10/4 | 28.9 | provisional |
| Sat, 10/3 | 29.2 | provisional |
| Fri, 10/2 | 28.7 | provisional |
| Thu, 10/1 | 29.9 | provisional |
| Wed, 9/30 | 24.4 | provisional |
| Tue, 9/29 | 23.4 | provisional |
| Mon, 9/28 | 30.2 | provisional |
| Sun, 9/27 | 25.5 | provisional |
| Sat, 9/26 | 12 | provisional |
| Fri, 9/25 | 9.5 | provisional |
| Thu, 9/24 | 21.9 | provisional |
| Wed, 9/23 | 14.3 | provisional |
| Tue, 9/22 | 7 | provisional |
| Mon, 9/21 | 13.7 | provisional |
| Sun, 9/20 | 19.1 | provisional |
| Sat, 9/19 | 22.5 | provisional |
| Fri, 9/18 | 22.1 | provisional |
| Thu, 9/17 | 18.8 | provisional |
| Wed, 9/16 | 22.5 | provisional |
| Tue, 9/15 | 10.8 | provisional |
| Mon, 9/14 | 20.8 | provisional |
| Sun, 9/13 | 6.7 | provisional |
| Sat, 9/12 | 9.1 | provisional |
| Fri, 9/11 | too few readings | |
| Thu, 9/10 | 12 | provisional |
| Wed, 9/9 | 21.9 | provisional |
| Tue, 9/8 | 37 | provisional |
| Mon, 9/7 | 26.2 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 31 | 8.9 | measured in 96 % of hours · provisional · year before: same days |
| September 2026 | 20.5 | 23.1 | measured in 95 % of hours · provisional |
| August 2026 | 31.2 | 26.8 | measured in 96 % of hours · provisional |
| July 2026 | 25.1 | 26.8 | measured in 94 % of hours · provisional |
| June 2026 | 20.9 | 29.2 | measured in 96 % of hours · provisional |
| May 2026 | too few readings | 15.1 | measured in 74 % of hours · provisional · 6 days without data from the station |
| April 2026 | 18.2 | too few readings | measured in 96 % of hours · provisional |
| March 2026 | 19.7 | 17.3 | measured in 96 % of hours · provisional |
| February 2026 | 18.2 | 18.5 | measured in 96 % of hours · provisional |
| January 2026 | 17.6 | 18.4 | measured in 96 % of hours · provisional |
| December 2025 | 23.4 | 19.8 | measured in 100 % of hours · verified |
| November 2025 | 18 | too few readings | measured in 91 % 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) | 21.2* | 21 | 22.2 |
| Highest daily average, µg/m³ | 67July 31 | 61July 25 | 62August 13 |
| Highest hourly value, µg/m³ | 137July 31 | 144August 15 | 154July 10 |
| Hours measured | 93 % | 95 % | 92 % |
| Days without any reading from the station | 6 | 11 | 19 |
* 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 were 5 such days.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2026 there were 92 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.
Sulphur dioxide SO₂
no measurement
Now
3.7
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
7
Last 7 daysµg/m³
measured in 96 % of hours · provisional
too few readings
Last 30 days
measured in 43 % of hours · provisional
too few readings
Last 12 months
measured in 86 % of hours · 1 month with too few readings · provisional
Days in 2026: SO₂, daily average above 125 µg/m³
No measured day above the limit. 6 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no SO₂ data in the EEA database
- no data from the station
Months of 2026
| Month | Days above 125 | Hours above 350 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 26 | 0 |
| February | 0 | 0 | 27 | 0 |
| March | 0 | 0 | 31 | 0 |
| April | 0 | 0 | 37 | 0 |
| May | 0 | 0 | 35 | 6 |
| June | 0 | 0 | 36 | 0 |
| July | 0 | 0 | 40 | 0 |
| August | 0 | 0 | 47 | 0 |
| September | 0 | 0 | 11 | 0 |
| October up to yesterday | 0 | 0 | 8 | 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 | ||
| 14:00 | 3.1 | |
| 13:00 | 3.4 | |
| 12:00 | 3.7 | |
| 11:00 | 4.1 | |
| 10:00 | 3.8 | |
| 09:00 | 3.7 | |
| 08:00 | 3.6 | |
| 07:00 | 3.8 | |
| 06:00 | 3.8 | |
| 05:00 | 3.9 | |
| 04:00 | 3.9 | |
| 03:00 | 4 | |
| 02:00 | 3.8 | |
| 01:00 | 3.8 | |
| Tuesday, 10/6 | ||
| 00:00 | 3.7 | |
| 23:00 | 3.3 | |
| 22:00 | 3.6 | |
| 21:00 | 3.8 | |
| 20:00 | 3.8 | |
| 19:00 | 4.2 | |
| 18:00 | 4.6 | |
| 17:00 | 4.5 | |
| 15:00 | 4.7 | |
| 14:00 | 4.6 | |
| 13:00 | 4.9 | |
| 12:00 | 5.7 | |
| 11:00 | 5.6 | |
| 10:00 | 4.7 | |
| 09:00 | 3.4 | |
| 08:00 | 3.2 | |
| 07:00 | 3.5 | |
| 06:00 | 3.7 | |
| 05:00 | 3.5 | |
| 04:00 | 3.3 | |
| 03:00 | 3.8 | |
| 02:00 | 3.8 | |
| 01:00 | 3.7 | |
| Monday, 10/5 | ||
| 00:00 | 3.5 | |
| 23:00 | 3.7 | |
| 22:00 | 3.7 | |
| 21:00 | 3.6 | |
| 20:00 | 3.7 | |
| 19:00 | 4.2 | |
| 18:00 | 4.7 | |
| 17:00 | 5 | |
| 16:00 | 5 | |
| 14:00 | 8.5 | |
| 13:00 | 8.1 | |
| 12:00 | 7.8 | |
| 11:00 | 7 | |
| 10:00 | 5.4 | |
| 09:00 | 4.9 | |
| 08:00 | 4.2 | |
| 07:00 | 4.6 | |
| 06:00 | 4.1 | |
| 05:00 | 4 | |
| 04:00 | 3.7 | |
| 03:00 | 3.7 | |
| 02:00 | 4 | |
| 01:00 | 4.3 | |
| Sunday, 10/4 | ||
| 00:00 | 4.6 | |
| 23:00 | 4.5 | |
| 22:00 | 4.1 | |
| 21:00 | 4.2 | |
| 20:00 | 4.4 | |
| 19:00 | 5.3 | |
| 18:00 | 4.9 | |
| 17:00 | 5.6 | |
| 16:00 | 5.9 | |
| 15:00 | 6.1 | |
| 13:00 | 6.2 | |
| 12:00 | 10.6 | |
| 11:00 | 9.1 | |
| 10:00 | 7.8 | |
| 09:00 | 8.5 | |
| 08:00 | 7.9 | |
| 07:00 | 8.9 | |
| 06:00 | 8 | |
| 05:00 | 7.5 | |
| 04:00 | 7.6 | |
| 03:00 | 6.9 | |
| 02:00 | 4.2 | |
| 01:00 | 5.3 | |
| Saturday, 10/3 | ||
| 00:00 | 5.1 | |
| 23:00 | 5.2 | |
| 22:00 | 5.8 | |
| 21:00 | 5.9 | |
| 20:00 | 5.4 | |
| 19:00 | 5.7 | |
| 18:00 | 5.2 | |
| 17:00 | 5.3 | |
| 16:00 | 6.3 | |
| 15:00 | 6.5 | |
| 14:00 | 6.3 | |
| 12:00 | 5.5 | |
| 11:00 | 6 | |
| 10:00 | 6 | |
| 09:00 | 6 | |
| 08:00 | 5.8 | |
| 07:00 | 7.7 | |
| 06:00 | 9.4 | |
| 05:00 | 10.1 | |
| 04:00 | 11 | |
| 03:00 | 11.5 | |
| 02:00 | 11.2 | |
| 01:00 | 10.5 | |
| Friday, 10/2 | ||
| 00:00 | 10.5 | |
| 23:00 | 8.4 | |
| 22:00 | 4.7 | |
| 21:00 | 4.6 | |
| 20:00 | 4.5 | |
| 19:00 | 4.9 | |
| 18:00 | 5.2 | |
| 17:00 | 4.6 | |
| 16:00 | 5.2 | |
| 15:00 | 6.1 | |
| 14:00 | 7.3 | |
| 13:00 | 7.7 | |
| 11:00 | 9.3 | |
| 10:00 | 9.5 | |
| 09:00 | 9.6 | |
| 08:00 | 9.9 | |
| 07:00 | 10.4 | |
| 06:00 | 11.1 | |
| 05:00 | 11.9 | |
| 04:00 | 12.6 | |
| 03:00 | 13.7 | |
| 02:00 | 10.9 | |
| 01:00 | 5.5 | |
| Thursday, 10/1 | ||
| 00:00 | 5.1 | |
| 23:00 | 5.1 | |
| 22:00 | 4.5 | |
| 21:00 | 5 | |
| 20:00 | 4.9 | |
| 19:00 | 5 | |
| 18:00 | 5.6 | |
| 17:00 | 5.5 | |
| 16:00 | 6 | |
| 15:00 | 8.5 | |
| 14:00 | 8.7 | |
| 13:00 | 12.5 | |
| 12:00 | 8.3 | |
| 10:00 | 10.7 | |
| 09:00 | 10.2 | |
| 08:00 | 10.2 | |
| 07:00 | 9.6 | |
| 06:00 | 9.3 | |
| 05:00 | 8.9 | |
| 04:00 | 8.2 | |
| 03:00 | 8.6 | |
| 02:00 | 8.1 | |
| 01:00 | 7.1 | |
| Wednesday, 9/30 | ||
| 00:00 | 6.7 | |
| 23:00 | 6.9 | |
| 22:00 | 7.8 | |
| 21:00 | 8 | |
| 20:00 | 8.8 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 4.1 | provisional |
| Mon, 10/5 | 4.9 | provisional |
| Sun, 10/4 | 6.4 | provisional |
| Sat, 10/3 | 7.1 | provisional |
| Fri, 10/2 | 8.2 | provisional |
| Thu, 10/1 | 7.6 | provisional |
| Wed, 9/30 | 10.9 | provisional |
| Tue, 9/29 | 10.5 | provisional |
| Mon, 9/28 | 7.1 | provisional |
| Sun, 9/27 | 7.2 | provisional |
| Sat, 9/26 | 7.2 | provisional |
| Fri, 9/25 | 5.9 | provisional |
| Thu, 9/24 | 6.5 | provisional |
| Wed, 9/23 | too few readings | |
| Tue, 9/22 | no measurement | |
| Mon, 9/21 | no measurement | |
| Sun, 9/20 | no measurement | |
| Sat, 9/19 | no measurement | |
| Fri, 9/18 | no measurement | |
| Thu, 9/17 | no measurement | |
| Wed, 9/16 | no measurement | |
| Tue, 9/15 | no measurement | |
| Mon, 9/14 | no measurement | |
| Sun, 9/13 | no measurement | |
| Sat, 9/12 | no measurement | |
| Fri, 9/11 | no measurement | |
| Thu, 9/10 | no measurement | |
| Wed, 9/9 | no measurement | |
| Tue, 9/8 | no measurement | |
| Mon, 9/7 | no measurement |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 6.4 | 6.5 | measured in 96 % of hours · provisional · year before: same days |
| September 2026 | too few readings | 12.9 | measured in 24 % of hours · provisional |
| August 2026 | 41.7 | 16.8 | measured in 96 % of hours · provisional |
| July 2026 | 36.4 | 11.9 | measured in 94 % of hours · provisional |
| June 2026 | 29.2 | too few readings | measured in 96 % of hours · provisional |
| May 2026 | too few readings | 3.8 | measured in 72 % of hours · provisional · 6 days without data from the station |
| April 2026 | 31.4 | too few readings | measured in 96 % of hours · provisional |
| March 2026 | 25.5 | 6.5 | measured in 96 % of hours · provisional |
| February 2026 | 24.7 | 6.2 | measured in 96 % of hours · provisional |
| January 2026 | 20.9 | 6 | measured in 96 % of hours · provisional |
| December 2025 | 17.7 | 4.2 | measured in 100 % of hours · verified |
| November 2025 | 14.9 | too few readings | measured in 100 % of hours · verified |
SO₂ by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Days above 125 µg/m³ (allowed 3) | 0² | 0² | 0² |
| Hours above 350 µg/m³ (allowed 24) | 0² | 0² | 0² |
| Hours above 500 µg/m³, three hours in a row (alert threshold) | 0 | 0 | 0 |
| Annual average, µg/m³ | too few | 10.5¹ | too few |
| Highest daily average, µg/m³ | 47August 29 | 21August 11 | 8July 31 |
| Highest hourly value, µg/m³ | 52August 29 | 27August 11 | 17October 30 |
| Hours measured | 85 % | 90 % | 89 % |
| Days without any reading from the station | 6 | 11 | 19 |
* 2026 up to October 6; the average since the start of the year is not yet an annual average.
The monitoring networks have not yet finally verified this year’s data. The EEA publishes verified values once a year.
¹ Fewer than 90 % of the hours were measured, so we do not compare this average with the limit.
² Too few readings to compare with the number allowed: the figure covers only what was measured.
■ and a figure in red: more than is allowed for the whole year.
There is no allowed number for the warning and alert thresholds: every such hour or day is in red.
The column for 2023 is shown on wider screens.
Compared with the new EU rules and the WHO recommendation
This is not the yardstick for the verdict above, only a comparison. From 2030 the EU tightens its limits (Directive (EU) 2024/2881), and since 2021 the World Health Organization has recommended even lower values.
- EU from 2030: daily 50 µg/m³, 18 days allowed. In 2026 there were 0 such days.
- WHO 2021: daily 40 µg/m³, at most three to four days a year. In 2026 there were 20 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.
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: 7
1 outage, 168 hours in total in the last 12 months.
Timeline of outages from October 7, 2025 to today
| From | To | Duration |
|---|---|---|
| May 7, 2026 12:00 | May 14, 2026 12:00 | 7 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 Mjerna mreža Cemex Hrvatska d.o.o.. 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.