Air at the Sisak-1 station
Sisak, Croatia
Network: Državna mreža za trajno praćenje kvalitete zraka · Station code: HR0006A
This year, up to yesterday (October 6)
27 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.
In 2025: 77 days above the limit, 35 allowed.
Worst day: January 24, 2026, PM10 103 µg/m³ as a daily average, 2.1 times the limit.
Daily average for 266 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
Fair
Air now · Measured at 17:00
Latest values
Latest value: 17:00
| Pollutant | Value | Level |
|---|---|---|
| PM10 | 17.3 µg/m³ | Fair |
How the air is changing
Over the last seven days there was more PM10 in the air than the week before.
- PM10: average 28.2 µg/m³, week before 16.2 µg/m³
Last month there was less PM10 in the air than the month before.
- PM10: average 15 µg/m³, month before 19.7 µg/m³
Particulate matter PM10
17.3
Nowµg/m³
Measured at 17:00
36.5
Last 24 hoursµg/m³
measured in 83 % of hours · provisional
28.2
Last 7 daysµg/m³
measured in 100 % of hours · provisional
17.5
Last 30 daysµg/m³
measured in 97 % of hours · provisional
26.3
Last 12 monthsµg/m³
measured in 97 % of hours · provisional
Days in 2026: PM10, daily average above 50 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)
- Jan 8 56
- Jan 12 53
- Jan 22 57
- Jan 23 59
- Jan 24 103
- Jan 25 82
- Jan 30 59
- Jan 31 56
- Feb 3 65
- Feb 23 62
- Feb 25 76
- Feb 26 88
- Feb 27 72
- Feb 28 54
- Mar 1 61
- Mar 2 69
- Mar 3 65
- Mar 4 56
- Mar 5 52
- Mar 6 83
- Mar 7 59
- Mar 8 58
- Mar 9 89
- Mar 10 76
- Mar 16 63
- Apr 16 53
- Apr 28 73
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 | 103 | 0 |
| February | 6 above the number allowed | 88 | 0 |
| March | 11 above the number allowed | 89 | 0 |
| April | 2 above the number allowed | 73 | 0 |
| May | 0 | 40 | 0 |
| June | 0 | 25 | 0 |
| July | 0 | 33 | 0 |
| August | 0 | 34 | 0 |
| September | 0 | 33 | 0 |
| October up to yesterday | 0 | 34 | 0 |
Values in µg/m³. ■ marks a month with at least one day above the limit; the number allowed applies to the whole year. “No readings”: days on which not a single reading came from the station.
Values as a table
| Hour to | µg/m³ | Note |
|---|---|---|
| Wednesday, 10/7 | ||
| 19:00 | 34 | model estimate, not counted |
| 18:00 | 31 | model estimate, not counted |
| 17:00 | 30 | model estimate, not counted |
| 16:00 | 16.2 | |
| 15:00 | 16.5 | |
| 14:00 | 37.8 | |
| 13:00 | 50 | |
| 12:00 | 29.8 | |
| 11:00 | 49.9 | |
| 10:00 | 44.6 | |
| 09:00 | 39.7 | |
| 08:00 | 45.6 | |
| 07:00 | 48.5 | |
| 06:00 | 33.5 | |
| 05:00 | 31.3 | |
| 04:00 | 31.3 | |
| 03:00 | 30 | |
| 02:00 | 32.3 | |
| 01:00 | 38.3 | |
| Tuesday, 10/6 | ||
| 00:00 | 38.7 | |
| 23:00 | 40.6 | |
| 22:00 | 39.4 | |
| 21:00 | 36.4 | |
| 20:00 | 43.8 | |
| 19:00 | 34.5 | |
| 18:00 | 34 | |
| 17:00 | 26.2 | |
| 16:00 | 24.3 | |
| 15:00 | 30 | |
| 14:00 | 43 | |
| 13:00 | 30.2 | |
| 12:00 | 43.7 | |
| 11:00 | 26.1 | |
| 10:00 | 23.8 | |
| 09:00 | 32.6 | |
| 08:00 | 32 | |
| 07:00 | 30.4 | |
| 06:00 | 32.2 | |
| 05:00 | 29.2 | |
| 04:00 | 30.8 | |
| 03:00 | 34.6 | |
| 02:00 | 37.3 | |
| 01:00 | 42.5 | |
| Monday, 10/5 | ||
| 00:00 | 42.5 | |
| 23:00 | 31.1 | |
| 22:00 | 38.4 | |
| 21:00 | 27.7 | |
| 20:00 | 29.9 | |
| 19:00 | 31.6 | |
| 18:00 | 36.4 | |
| 17:00 | 25.5 | |
| 16:00 | 23 | |
| 15:00 | 31.5 | |
| 14:00 | 27 | |
| 13:00 | 41.5 | |
| 12:00 | 26.6 | |
| 11:00 | 22 | |
| 10:00 | 31.6 | |
| 09:00 | 33.5 | |
| 08:00 | 36 | |
| 07:00 | 34.5 | |
| 06:00 | 30 | |
| 05:00 | 29.3 | |
| 04:00 | 31.7 | |
| 03:00 | 33.4 | |
| 02:00 | 39.2 | |
| 01:00 | 34.1 | |
| Sunday, 10/4 | ||
| 00:00 | 33.1 | |
| 23:00 | 32.2 | |
| 22:00 | 34.6 | |
| 21:00 | 30.6 | |
| 20:00 | 26.8 | |
| 19:00 | 27 | |
| 18:00 | 19 | |
| 17:00 | 17.6 | |
| 16:00 | 16.4 | |
| 15:00 | 15.4 | |
| 14:00 | 19.3 | |
| 13:00 | 17.1 | |
| 12:00 | 18.3 | |
| 11:00 | 17.9 | |
| 10:00 | 17.1 | |
| 09:00 | 20.4 | |
| 08:00 | 19.7 | |
| 07:00 | 21.1 | |
| 06:00 | 21 | |
| 05:00 | 22 | |
| 04:00 | 26.3 | |
| 03:00 | 30.2 | |
| 02:00 | 31.5 | |
| 01:00 | 32.2 | |
| Saturday, 10/3 | ||
| 00:00 | 29.6 | |
| 23:00 | 35.6 | |
| 22:00 | 31.6 | |
| 21:00 | 25.3 | |
| 20:00 | 22.3 | |
| 19:00 | 25 | |
| 18:00 | 17.9 | |
| 17:00 | 14.1 | |
| 16:00 | 13.6 | |
| 15:00 | 74.7 | |
| 14:00 | 19 | |
| 13:00 | 22.1 | |
| 12:00 | 24.9 | |
| 11:00 | 25.7 | |
| 10:00 | 23.6 | |
| 09:00 | 26.6 | |
| 08:00 | 23.5 | |
| 07:00 | 21.3 | |
| 06:00 | 20.3 | |
| 05:00 | 22.9 | |
| 04:00 | 23 | |
| 03:00 | 26.7 | |
| 02:00 | 29.4 | |
| 01:00 | 28.8 | |
| Friday, 10/2 | ||
| 00:00 | 30 | |
| 23:00 | 25.6 | |
| 22:00 | 28.9 | |
| 21:00 | 28.1 | |
| 20:00 | 25 | |
| 19:00 | 25.2 | |
| 18:00 | 25.7 | |
| 17:00 | 43.6 | |
| 16:00 | 19.4 | |
| 15:00 | 33.5 | |
| 14:00 | 41.7 | |
| 13:00 | 50.9 | |
| 12:00 | 23.2 | |
| 11:00 | 23.2 | |
| 10:00 | 20.1 | |
| 09:00 | 26.2 | |
| 08:00 | 23.7 | |
| 07:00 | 21.1 | |
| 06:00 | 19.4 | |
| 05:00 | 18.9 | |
| 04:00 | 22.1 | |
| 03:00 | 24.5 | |
| 02:00 | 24.9 | |
| 01:00 | 25.2 | |
| Thursday, 10/1 | ||
| 00:00 | 24.9 | |
| 23:00 | 24.3 | |
| 22:00 | 23.8 | |
| 21:00 | 26.6 | |
| 20:00 | 32.1 | |
| 19:00 | 22.2 | |
| 18:00 | 18.8 | |
| 17:00 | 32.2 | |
| 16:00 | 21.9 | |
| 15:00 | 31.2 | |
| 14:00 | 23.9 | |
| 13:00 | 74.8 | |
| 12:00 | 31 | |
| 11:00 | 50.3 | |
| 10:00 | 29.3 | |
| 09:00 | 28.8 | |
| 08:00 | 25 | |
| 07:00 | 26.5 | |
| 06:00 | 23.3 | |
| 05:00 | 21.9 | |
| 04:00 | 25.7 | |
| 03:00 | 29.9 | |
| 02:00 | 25.2 | |
| 01:00 | 24.5 | |
| Wednesday, 9/30 | ||
| 00:00 | 26.6 | |
| 23:00 | 26.5 | |
| 22:00 | 32.3 | |
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | 34 | provisional |
| Mon, 10/5 | 32 | provisional |
| Sun, 10/4 | 23.6 | provisional |
| Sat, 10/3 | 26.1 | provisional |
| Fri, 10/2 | 27.1 | provisional |
| Thu, 10/1 | 29.1 | provisional |
| Wed, 9/30 | 25.4 | provisional |
| Tue, 9/29 | 24.5 | provisional |
| Mon, 9/28 | 24.7 | provisional |
| Sun, 9/27 | 16.7 | provisional |
| Sat, 9/26 | 11.4 | provisional |
| Fri, 9/25 | 11.9 | provisional |
| Thu, 9/24 | 14.7 | provisional |
| Wed, 9/23 | 9.3 | provisional |
| Tue, 9/22 | 12.6 | provisional |
| Mon, 9/21 | 14.1 | provisional |
| Sun, 9/20 | 11.4 | provisional |
| Sat, 9/19 | 9.9 | provisional |
| Fri, 9/18 | 11.2 | provisional |
| Thu, 9/17 | 13.6 | provisional |
| Wed, 9/16 | 19.1 | provisional |
| Tue, 9/15 | 10.1 | provisional |
| Mon, 9/14 | 11.9 | provisional |
| Sun, 9/13 | 9.1 | provisional |
| Sat, 9/12 | 8.4 | provisional |
| Fri, 9/11 | 6.9 | provisional |
| Thu, 9/10 | 9.4 | provisional |
| Wed, 9/9 | 21.4 | provisional |
| Tue, 9/8 | 33.1 | provisional |
| Mon, 9/7 | too few readings |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | 28.7 | 16.5 | measured in 100 % of hours · provisional · year before: same days |
| September 2026 | 15 | 13.7 | measured in 97 % of hours · provisional |
| August 2026 | 19.7 | 33.4 | measured in 100 % of hours · provisional |
| July 2026 | 13.6 | 30.6 | measured in 95 % of hours · provisional |
| June 2026 | 12.6 | 54.7 | measured in 92 % of hours · provisional |
| May 2026 | 17.4 | 37.2 | measured in 94 % of hours · provisional |
| April 2026 | 30.6 | too few readings | measured in 96 % of hours · provisional |
| March 2026 | 41.1 | 50.9 | measured in 99 % of hours · provisional |
| February 2026 | 38.6 | 69 | measured in 96 % of hours · provisional |
| January 2026 | 37.8 | 30.3 | measured in 95 % of hours · provisional |
| December 2025 | 34.5 | 41.2 | measured in 97 % of hours · verified |
| November 2025 | 26.9 | 32.5 | 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) | 27 | 77 above the number allowed | 49 above the number allowed |
| Annual average, µg/m³ (EU limit 40) | 25.2* | 37.2 | 30.6 |
| Highest daily average, µg/m³ | 103January 24 | 184February 19 | 122April 1 |
| Highest hourly value, µg/m³ | 243March 11 | 922February 20 | 876September 5 |
| Hours measured | 96 % | 96 % | 96 % |
| Days without any reading from the station | 0 | 7 | 4 |
* 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 45 µg/m³, 18 days allowed. In 2026 there were 37 such days.
- WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2026 there were 37 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 24, 2026provisional | 103 | 2.1 × |
| Mar 9, 2026provisional | 89 | 1.8 × |
| Feb 26, 2026provisional | 88 | 1.8 × |
| Mar 6, 2026provisional | 83 | 1.7 × |
| Jan 25, 2026provisional | 82 | 1.6 × |
Daily average in µg/m³, daily limit 50 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, 26 hours in total in the last 12 months.
Timeline of outages from October 7, 2025 to today
| From | To | Duration |
|---|---|---|
| Jun 4, 2026 09:00 | Jun 5, 2026 11:00 | 26 hours |
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.