Air at the Hrastnik station
Hrastnik, Slovenia
Network: Slovenian Environment Agency · Station code: SI0037A
This year, up to yesterday (October 7)
3 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: January 23, 2026, PM10 88 µg/m³ as a daily average, 1.8 times the limit.
Daily average for 277 of 280 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
Good
Air now · Measured at 23:00
Latest values
Latest value: Wed 23:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 15 µg/m³ | Good |
How the air is changing
Over the last seven days there was more PM10 and PM2.5 in the air than the week before.
- PM10: average 20 µg/m³, week before 13.7 µg/m³
- PM2.5: average 10.7 µg/m³, week before 8 µg/m³
Last month there was less PM10 and PM2.5 in the air than the month before.
- PM10: average 11.2 µg/m³, month before 14.8 µg/m³
- PM2.5: average 5.3 µg/m³, month before 7.2 µg/m³
Show
Particulate matter PM10
15
Nowµg/m³
Measured at 23:00
23.4
Last 24 hoursµg/m³
measured in 92 % of hours · provisional
20
Last 7 daysµg/m³
measured in 95 % of hours · provisional
13
Last 30 daysµg/m³
measured in 99 % of hours · provisional
too few readings
Last 12 months
measured in 76 % of hours · 2 months with too few readings · provisional
Values as a table
| Hour to | µg/m³ | Note |
|---|---|---|
| Wednesday, 10/7 | ||
| 23:00 | 22 | model estimate, not counted |
| 22:00 | 16.4 | |
| 21:00 | 17.7 | |
| 20:00 | 18.9 | |
| 19:00 | 18.5 | |
| 18:00 | 23.1 | |
| 17:00 | 24.8 | |
| 16:00 | 16.8 | |
| 15:00 | 14.3 | |
| 14:00 | 18.8 | |
| 13:00 | 18.9 | |
| 12:00 | 19.8 | |
| 11:00 | 22.8 | |
| 10:00 | 36.1 | |
| 09:00 | 53.6 | |
| 08:00 | 44.9 | |
| 07:00 | 25.7 | |
| 06:00 | 21 | |
| 05:00 | 20.4 | |
| 04:00 | 20.5 | |
| 03:00 | 20.4 | |
| 02:00 | 20.2 | |
| 01:00 | 20.8 | |
| Tuesday, 10/6 | ||
| 00:00 | 21.6 | |
| 23:00 | 23 | |
| 22:00 | 25.8 | |
| 21:00 | 30.3 | |
| 20:00 | 31 | |
| 19:00 | 31.5 | |
| 18:00 | 27.1 | |
| 17:00 | 31.7 | |
| 16:00 | 19.6 | |
| 15:00 | 26.5 | |
| 14:00 | 19.6 | |
| 13:00 | 17.8 | |
| 12:00 | 21.5 | |
| 11:00 | 40.2 | |
| 10:00 | 32.8 | |
| 09:00 | 29.9 | |
| 08:00 | 35.7 | |
| 07:00 | 16.6 | |
| 06:00 | 12.8 | |
| 05:00 | 11.9 | |
| 04:00 | 12.6 | |
| 03:00 | 13.1 | |
| 02:00 | 13.5 | |
| 01:00 | 14.3 | |
| Monday, 10/5 | ||
| 00:00 | 16.9 | |
| 23:00 | 18.9 | |
| 22:00 | 24.1 | |
| 21:00 | 23.1 | |
| 20:00 | 23.4 | |
| 19:00 | 34.5 | |
| 18:00 | 39.5 | |
| 17:00 | 17.2 | |
| 16:00 | 12.6 | |
| 15:00 | 18 | |
| 14:00 | 19.3 | |
| 13:00 | 24.7 | |
| 12:00 | 30.5 | |
| 11:00 | 31.3 | |
| 10:00 | 27.5 | |
| 09:00 | 33.2 | |
| 08:00 | 27.7 | |
| 07:00 | 15 | |
| 06:00 | 12.2 | |
| 05:00 | 10.6 | |
| 04:00 | 11.2 | |
| 03:00 | 12.1 | |
| 02:00 | 14 | |
| 01:00 | 13.9 | |
| Sunday, 10/4 | ||
| 00:00 | 15.5 | |
| 23:00 | 15.6 | |
| 22:00 | 16 | |
| 21:00 | 20.4 | |
| 20:00 | 20.6 | |
| 19:00 | 25 | |
| 18:00 | 27.2 | |
| 17:00 | 18.2 | |
| 16:00 | 14.7 | |
| 15:00 | 14.4 | |
| 08:00 | 10.4 | |
| 07:00 | 10.3 | |
| 06:00 | 10 | |
| 05:00 | 10.4 | |
| 04:00 | 13.5 | |
| 03:00 | 14.2 | |
| 02:00 | 12.2 | |
| 01:00 | 14.9 | |
| Saturday, 10/3 | ||
| 00:00 | 17.8 | |
| 23:00 | 19.8 | |
| 22:00 | 19.7 | |
| 21:00 | 21.4 | |
| 20:00 | 23.9 | |
| 19:00 | 28.6 | |
| 18:00 | 28.8 | |
| 17:00 | 14.4 | |
| 16:00 | 13.5 | |
| 15:00 | 13 | |
| 14:00 | 15.7 | |
| 13:00 | 18.8 | |
| 12:00 | 14.8 | |
| 11:00 | 16.2 | |
| 10:00 | 15.1 | |
| 09:00 | 13.7 | |
| 08:00 | 12 | |
| 07:00 | 10.3 | |
| 06:00 | 11.6 | |
| 05:00 | 9.8 | |
| 04:00 | 9.6 | |
| 03:00 | 10.4 | |
| 02:00 | 11.6 | |
| 01:00 | 13.3 | |
| Friday, 10/2 | ||
| 00:00 | 15.5 | |
| 23:00 | 17.3 | |
| 22:00 | 19.4 | |
| 21:00 | 23.5 | |
| 20:00 | 25.2 | |
| 19:00 | 48 | |
| 18:00 | 33.1 | |
| 17:00 | 20.1 | |
| 16:00 | 15.4 | |
| 15:00 | 15.5 | |
| 14:00 | 16.5 | |
| 13:00 | 17.9 | |
| 12:00 | 23.1 | |
| 11:00 | 25.9 | |
| 10:00 | 29.2 | |
| 09:00 | 26.5 | |
| 08:00 | 21.5 | |
| 07:00 | 14.9 | |
| 06:00 | 11.3 | |
| 05:00 | 9.4 | |
| 04:00 | 9.6 | |
| 03:00 | 10 | |
| 02:00 | 13.2 | |
| 01:00 | 10.2 | |
| Thursday, 10/1 | ||
| 00:00 | 11.2 | |
| 23:00 | 11.9 | |
| 22:00 | 14.6 | |
| 21:00 | 16.8 | |
| 20:00 | 14.8 | |
| 19:00 | 29.9 | |
| 18:00 | 13.3 | |
| 17:00 | 14.7 | |
| 16:00 | 15.9 | |
| 15:00 | 12 | |
| 14:00 | 12.6 | |
| 13:00 | 13.9 | |
| 12:00 | 20.7 | |
| 11:00 | 24.7 | |
| 10:00 | 32.6 | |
| 09:00 | 50.1 | |
| 08:00 | 27.7 | |
| 07:00 | 22.8 | |
| 06:00 | 19.8 | |
| 05:00 | 20.2 | |
| 04:00 | 24.2 | |
| 03:00 | 21.6 | |
| 02:00 | 17.4 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Wed, 10/7 | 23.4 | provisional |
| Tue, 10/6 | 23.3 | provisional |
| Mon, 10/5 | 21.3 | provisional |
| Sun, 10/4 | 15.7 | provisional |
| Sat, 10/3 | 16 | provisional |
| Fri, 10/2 | 19.7 | provisional |
| Thu, 10/1 | 20.1 | provisional |
| Wed, 9/30 | 19.1 | provisional |
| Tue, 9/29 | 17.9 | provisional |
| Mon, 9/28 | 19.5 | provisional |
| Sun, 9/27 | 11.1 | provisional |
| Sat, 9/26 | 7.7 | provisional |
| Fri, 9/25 | 7.5 | provisional |
| Thu, 9/24 | 12.9 | provisional |
| Wed, 9/23 | 11.7 | provisional |
| Tue, 9/22 | 10.8 | provisional |
| Mon, 9/21 | 10.9 | provisional |
| Sun, 9/20 | 8.3 | provisional |
| Sat, 9/19 | 10 | provisional |
| Fri, 9/18 | 9.4 | provisional |
| Thu, 9/17 | 13.6 | provisional |
| Wed, 9/16 | 11.1 | provisional |
| Tue, 9/15 | 7.3 | provisional |
| Mon, 9/14 | 8.7 | provisional |
| Sun, 9/13 | 7.6 | provisional |
| Sat, 9/12 | 7.1 | provisional |
| Fri, 9/11 | 4.5 | provisional |
| Thu, 9/10 | 5.3 | provisional |
| Wed, 9/9 | 15.3 | provisional |
| Tue, 9/8 | 15.7 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 20 | measured in 95 % of hours · provisional | |
| September 2026 | 11.2 | measured in 100 % of hours · provisional | |
| August 2026 | 14.8 | measured in 100 % of hours · provisional | |
| July 2026 | 12.3 | measured in 93 % of hours · provisional · 1 day without data from the station | |
| June 2026 | 13.3 | measured in 100 % of hours · provisional | |
| May 2026 | 11.1 | measured in 100 % of hours · provisional | |
| April 2026 | 14.5 | measured in 100 % of hours · provisional | |
| March 2026 | 20.2 | measured in 100 % of hours · provisional | |
| February 2026 | 20.2 | measured in 100 % of hours · provisional | |
| January 2026 | 24.9 | measured in 100 % of hours · provisional | |
| December 2025 | too few readings | ||
| November 2025 | too few readings |
PM10 by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* |
|---|---|
| Days above 50 µg/m³ (allowed 35) | 3 |
| Annual average, µg/m³ (EU limit 40) | 15.9* |
| Highest daily average, µg/m³ | 88January 23 |
| Highest hourly value, µg/m³ | 124January 23 |
| Hours measured | 99 % |
| Days without any reading from the station | 1 |
* 2026 up to October 7; 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.
Particulate matter PM2.5
no measurement
Now
too few readings
Last 24 hours
measured in 0 % of hours
10.7
Last 7 daysµg/m³
measured in 82 % of hours · provisional
6.6
Last 30 daysµg/m³
measured in 96 % of hours · provisional
10.4
Last 12 monthsµg/m³
measured in 99 % of hours · provisional
Months of 2025
| Month | Highest day | No readings |
|---|---|---|
| January | 46 | 0 |
| February | 56 | 0 |
| March | 20 | 0 |
| April | 12 | 0 |
| May | 12 | 0 |
| June | 24 | 0 |
| July | 10 | 0 |
| August | 12 | 0 |
| September | 12 | 0 |
| October | 13 | 0 |
| November | 26 | 0 |
| December | 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 |
|---|---|---|
| Tuesday, 10/6 | ||
| 00:00 | 16.5 | |
| 23:00 | 17.2 | |
| 22:00 | 19.6 | |
| 21:00 | 19.5 | |
| 20:00 | 19.5 | |
| 19:00 | 16.9 | |
| 18:00 | 14.2 | |
| 17:00 | 13.3 | |
| 16:00 | 11.4 | |
| 15:00 | 11.4 | |
| 14:00 | 10.8 | |
| 13:00 | 10 | |
| 12:00 | 11.4 | |
| 11:00 | 16.4 | |
| 10:00 | 15.5 | |
| 09:00 | 13.1 | |
| 08:00 | 13.6 | |
| 07:00 | 10.4 | |
| 06:00 | 9.9 | |
| 05:00 | 9.8 | |
| 04:00 | 10.5 | |
| 03:00 | 10.7 | |
| 02:00 | 11.1 | |
| 01:00 | 11.6 | |
| Monday, 10/5 | ||
| 00:00 | 12.8 | |
| 23:00 | 14.8 | |
| 22:00 | 17.6 | |
| 21:00 | 14.9 | |
| 20:00 | 12.9 | |
| 19:00 | 12.5 | |
| 18:00 | 14.8 | |
| 17:00 | 7.9 | |
| 16:00 | 7.5 | |
| 15:00 | 8.4 | |
| 14:00 | 9.9 | |
| 13:00 | 10.9 | |
| 12:00 | 12.2 | |
| 11:00 | 14.3 | |
| 10:00 | 13 | |
| 09:00 | 12.5 | |
| 08:00 | 11.9 | |
| 07:00 | 9.4 | |
| 06:00 | 8.6 | |
| 05:00 | 8.4 | |
| 04:00 | 9.2 | |
| 03:00 | 9.7 | |
| 02:00 | 10.6 | |
| 01:00 | 11 | |
| Sunday, 10/4 | ||
| 00:00 | 12.1 | |
| 23:00 | 11.5 | |
| 22:00 | 10.8 | |
| 21:00 | 12.5 | |
| 20:00 | 12.9 | |
| 19:00 | 12.7 | |
| 18:00 | 9.4 | |
| 17:00 | 7.6 | |
| 16:00 | 7.5 | |
| 15:00 | 7.5 | |
| 08:00 | 7.7 | |
| 07:00 | 7.9 | |
| 06:00 | 8 | |
| 05:00 | 8.6 | |
| 04:00 | 11 | |
| 03:00 | 11.2 | |
| 02:00 | 9.6 | |
| 01:00 | 11 | |
| Saturday, 10/3 | ||
| 00:00 | 12.9 | |
| 23:00 | 13.5 | |
| 22:00 | 13.7 | |
| 21:00 | 14.1 | |
| 20:00 | 13.1 | |
| 19:00 | 11.5 | |
| 18:00 | 13 | |
| 17:00 | 7.1 | |
| 16:00 | 6.6 | |
| 15:00 | 6.3 | |
| 14:00 | 7.3 | |
| 13:00 | 8.2 | |
| 12:00 | 8.3 | |
| 11:00 | 9 | |
| 10:00 | 8.9 | |
| 09:00 | 8.3 | |
| 08:00 | 7.6 | |
| 07:00 | 7.4 | |
| 06:00 | 8.8 | |
| 05:00 | 7.4 | |
| 04:00 | 7 | |
| 03:00 | 7.5 | |
| 02:00 | 8.1 | |
| 01:00 | 8.8 | |
| Friday, 10/2 | ||
| 00:00 | 9.9 | |
| 23:00 | 10.4 | |
| 22:00 | 11 | |
| 21:00 | 13.6 | |
| 20:00 | 12 | |
| 19:00 | 12.2 | |
| 18:00 | 9.2 | |
| 17:00 | 7.3 | |
| 16:00 | 6.7 | |
| 15:00 | 6.7 | |
| 14:00 | 7.4 | |
| 13:00 | 8.5 | |
| 12:00 | 9.9 | |
| 11:00 | 10.6 | |
| 10:00 | 11.1 | |
| 09:00 | 10 | |
| 08:00 | 9.2 | |
| 07:00 | 8 | |
| 06:00 | 6.9 | |
| 05:00 | 6.4 | |
| 04:00 | 6.8 | |
| 03:00 | 7.1 | |
| 02:00 | 10.2 | |
| 01:00 | 6.7 | |
| Thursday, 10/1 | ||
| 00:00 | 6.9 | |
| 23:00 | 7.4 | |
| 22:00 | 8.4 | |
| 21:00 | 8 | |
| 20:00 | 7.7 | |
| 19:00 | 8.2 | |
| 18:00 | 6 | |
| 17:00 | 6 | |
| 16:00 | 5.8 | |
| 15:00 | 6.4 | |
| 14:00 | 6.9 | |
| 13:00 | 7.9 | |
| 12:00 | 10.3 | |
| 11:00 | 11.3 | |
| 10:00 | 13 | |
| 09:00 | 16.8 | |
| 08:00 | 13.1 | |
| 07:00 | 13.9 | |
| 06:00 | 15 | |
| 05:00 | 16.9 | |
| 04:00 | 20.6 | |
| 03:00 | 17.2 | |
| 02:00 | 13.7 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Wed, 10/7 | no measurement | |
| Tue, 10/6 | 13.5 | provisional |
| Mon, 10/5 | 11.5 | provisional |
| Sun, 10/4 | 10 | provisional |
| Sat, 10/3 | 9.3 | provisional |
| Fri, 10/2 | 9.1 | provisional |
| Thu, 10/1 | 10.9 | provisional |
| Wed, 9/30 | 9 | provisional |
| Tue, 9/29 | 10.4 | provisional |
| Mon, 9/28 | 13.8 | provisional |
| Sun, 9/27 | 7.8 | provisional |
| Sat, 9/26 | 4.3 | provisional |
| Fri, 9/25 | 4 | provisional |
| Thu, 9/24 | 6.6 | provisional |
| Wed, 9/23 | 5.7 | provisional |
| Tue, 9/22 | 4.2 | provisional |
| Mon, 9/21 | 4.4 | provisional |
| Sun, 9/20 | 4.6 | provisional |
| Sat, 9/19 | 5.1 | provisional |
| Fri, 9/18 | 4.2 | provisional |
| Thu, 9/17 | 6.8 | provisional |
| Wed, 9/16 | 4.9 | provisional |
| Tue, 9/15 | 3.2 | provisional |
| Mon, 9/14 | 4.2 | provisional |
| Sun, 9/13 | 3.8 | provisional |
| Sat, 9/12 | 3.5 | provisional |
| Fri, 9/11 | 2.2 | provisional |
| Thu, 9/10 | 2.9 | provisional |
| Wed, 9/9 | 6.4 | provisional |
| Tue, 9/8 | 6 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 10.7 | 6.3 | measured in 82 % of hours · provisional · year before: same days |
| September 2026 | 5.3 | 5.2 | measured in 100 % of hours · provisional |
| August 2026 | 7.2 | 6.8 | measured in 100 % of hours · provisional |
| July 2026 | 6.4 | 4.8 | measured in 93 % of hours · provisional · 1 day without data from the station |
| June 2026 | 7.1 | 8.9 | measured in 100 % of hours · provisional |
| May 2026 | 5.3 | 5.4 | measured in 100 % of hours · provisional |
| April 2026 | 7.9 | 7.1 | measured in 100 % of hours · provisional |
| March 2026 | 12.4 | 9.5 | measured in 100 % of hours · provisional |
| February 2026 | 13.8 | 26.9 | measured in 100 % of hours · provisional |
| January 2026 | 20.7 | 15 | measured in 100 % of hours · provisional |
| December 2025 | 16.9 | 18.1 | measured in 100 % of hours · verified |
| November 2025 | 12.9 | 19.1 | measured in 100 % of hours · verified |
PM2.5 by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 | 2024 |
|---|---|---|---|
| Annual average, µg/m³ (EU limit 25) | 9.6* | 10.4 | 11.9 |
| Highest daily average, µg/m³ | 68January 23 | 56February 9 | 43December 31 |
| Highest hourly value, µg/m³ | 104July 2 | 184January 1 | 79December 31 |
| Hours measured | 99 % | 100 % | 100 % |
| Days without any reading from the station | 1 | 0 | 0 |
* 2026 up to October 7; 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.
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 25 µg/m³, 18 days allowed. In 2025 there were 24 such days.
- WHO 2021: daily 15 µg/m³, at most three to four days a year. In 2025 there were 72 such days.
- EU from 2030: annual average 10 µg/m³. Average in 2025: 10 µg/m³.
- WHO 2021: annual average 5 µg/m³. Average in 2025: 10 µg/m³.
Sources: Directive (EU) 2024/2881, Annex I; WHO global air quality guidelines 2021, table 0.1. Checked against the texts on 7 October 2026.
Outages in the last 12 months
Every period of at least 24 hours in which no reading arrived from this station.
Days without a reading: 2
1 outage, 46 hours in total in the last 12 months.
Timeline of outages from October 8, 2025 to today
| From | To | Duration |
|---|---|---|
| Jul 13, 2026 16:00 | Jul 15, 2026 14:00 | 46 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 Slovenian Environment Agency. 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.