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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)

All figures by year and month

Moderate

Air now · Measured at 19:00

Latest values

Latest value: 19:00

Readings
PollutantValueLevel
PM1048.8 µg/m³Moderate

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

48.8

Nowµg/m³

Measured at 19:00

34.9

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 2024: PM10, daily average above 50 µg/m³

49 days above the limit. 4 days without any reading from the station.

1102031JanJan 12: 53 µg/m³, above the limitJan 20: 54 µg/m³, above the limitJan 22: 74 µg/m³, above the limitJan 26: 52 µg/m³, above the limitJan 29: 66 µg/m³, above the limitJan 30: 75 µg/m³, above the limitJan 31: 93 µg/m³, above the limitFebFeb 1: 109 µg/m³, above the limitFeb 2: 82 µg/m³, above the limitFeb 3: 69 µg/m³, above the limitFeb 4: 83 µg/m³, above the limitFeb 15: 53 µg/m³, above the limitFeb 19: 63 µg/m³, above the limitFeb 26: 51 µg/m³, above the limitFeb 27: 57 µg/m³, above the limitFeb 28: 60 µg/m³, above the limitMarMar 4: 55 µg/m³, above the limitMar 14: 57 µg/m³, above the limitMar 20: 66 µg/m³, above the limitMar 31: 106 µg/m³, above the limitAprApr 1: 122 µg/m³, above the limitApr 8: 60 µg/m³, above the limitApr 30: 63 µg/m³, above the limitMayJunJun 19: 55 µg/m³, above the limitJun 21: 80 µg/m³, above the limitJulJul 16: 59 µg/m³, above the limitAugAug 20: 64 µg/m³, above the limitAug 30: 68 µg/m³, above the limitSepSep 2: 73 µg/m³, above the limitSep 3: 87 µg/m³, above the limitSep 4: 90 µg/m³, above the limitSep 5: 82 µg/m³, above the limitSep 11: 62 µg/m³, above the limitSep 18: 54 µg/m³, above the limitOctOct 22: 53 µg/m³, above the limitOct 26: no data from the stationOct 27: no data from the stationOct 28: no data from the stationNovNov 5: 69 µg/m³, above the limitNov 6: 69 µg/m³, above the limitNov 7: 61 µg/m³, above the limitNov 8: 51 µg/m³, above the limitNov 11: 52 µg/m³, above the limitDecDec 2: 61 µg/m³, above the limitDec 3: 56 µg/m³, above the limitDec 11: no data from the stationDec 17: 60 µg/m³, above the limitDec 18: 57 µg/m³, above the limitDec 27: 51 µg/m³, above the limitDec 28: 58 µg/m³, above the limitDec 29: 66 µg/m³, above the limitDec 30: 95 µg/m³, above the limitDec 31: 90 µg/m³, above the limit
  • above the limit
  • below the limit
  • too few readings for the day
  • no data from the station
Days above the limit with values (49)
  1. Jan 12 53
  2. Jan 20 54
  3. Jan 22 74
  4. Jan 26 52
  5. Jan 29 66
  6. Jan 30 75
  7. Jan 31 93
  8. Feb 1 109
  9. Feb 2 82
  10. Feb 3 69
  11. Feb 4 83
  12. Feb 15 53
  13. Feb 19 63
  14. Feb 26 51
  15. Feb 27 57
  16. Feb 28 60
  17. Mar 4 55
  18. Mar 14 57
  19. Mar 20 66
  20. Mar 31 106
  21. Apr 1 122
  22. Apr 8 60
  23. Apr 30 63
  24. Jun 19 55
  25. Jun 21 80
  26. Jul 16 59
  27. Aug 20 64
  28. Aug 30 68
  29. Sep 2 73
  30. Sep 3 87
  31. Sep 4 90
  32. Sep 5 82
  33. Sep 11 62
  34. Sep 18 54
  35. Oct 22 53
  36. Nov 5 69
  37. Nov 6 69
  38. Nov 7 61
  39. Nov 8 51
  40. Nov 11 52
  41. Dec 2 61
  42. Dec 3 56
  43. Dec 17 60
  44. Dec 18 57
  45. Dec 27 51
  46. Dec 28 58
  47. Dec 29 66
  48. Dec 30 95
  49. Dec 31 90

Values in µg/m³, limit 50 µg/m³.

Months of 2024

MonthDays above 50Highest dayNo readings
January7 above the number allowed930
February9 above the number allowed1090
March4 above the number allowed1060
April3 above the number allowed1220
May0450
June2 above the number allowed800
July1 above the number allowed590
August2 above the number allowed680
September6 above the number allowed900
October1 above the number allowed533
November5 above the number allowed690
December9 above the number allowed951

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.

Last 7 days, every hour: PM10 in µg/m³highest 75 µg/m³, latest 26 µg/m³ (18:00)050100ThuFriSatSunMonTueWedhighest 75latest 26 (18:00)
measuredmodel estimate, not counted
Last 7 days, every hour: PM10 in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
21:0032model estimate, not counted
20:0032model estimate, not counted
19:0034model estimate, not counted
18:0025.5
17:0017.3
16:0016.2
15:0016.5
14:0037.8
13:0050
12:0029.8
11:0049.9
10:0044.6
09:0039.7
08:0045.6
07:0048.5
06:0033.5
05:0031.3
04:0031.3
03:0030
02:0032.3
01:0038.3
Tuesday, 10/6
00:0038.7
23:0040.6
22:0039.4
21:0036.4
20:0043.8
19:0034.5
18:0034
17:0026.2
16:0024.3
15:0030
14:0043
13:0030.2
12:0043.7
11:0026.1
10:0023.8
09:0032.6
08:0032
07:0030.4
06:0032.2
05:0029.2
04:0030.8
03:0034.6
02:0037.3
01:0042.5
Monday, 10/5
00:0042.5
23:0031.1
22:0038.4
21:0027.7
20:0029.9
19:0031.6
18:0036.4
17:0025.5
16:0023
15:0031.5
14:0027
13:0041.5
12:0026.6
11:0022
10:0031.6
09:0033.5
08:0036
07:0034.5
06:0030
05:0029.3
04:0031.7
03:0033.4
02:0039.2
01:0034.1
Sunday, 10/4
00:0033.1
23:0032.2
22:0034.6
21:0030.6
20:0026.8
19:0027
18:0019
17:0017.6
16:0016.4
15:0015.4
14:0019.3
13:0017.1
12:0018.3
11:0017.9
10:0017.1
09:0020.4
08:0019.7
07:0021.1
06:0021
05:0022
04:0026.3
03:0030.2
02:0031.5
01:0032.2
Saturday, 10/3
00:0029.6
23:0035.6
22:0031.6
21:0025.3
20:0022.3
19:0025
18:0017.9
17:0014.1
16:0013.6
15:0074.7
14:0019
13:0022.1
12:0024.9
11:0025.7
10:0023.6
09:0026.6
08:0023.5
07:0021.3
06:0020.3
05:0022.9
04:0023
03:0026.7
02:0029.4
01:0028.8
Friday, 10/2
00:0030
23:0025.6
22:0028.9
21:0028.1
20:0025
19:0025.2
18:0025.7
17:0043.6
16:0019.4
15:0033.5
14:0041.7
13:0050.9
12:0023.2
11:0023.2
10:0020.1
09:0026.2
08:0023.7
07:0021.1
06:0019.4
05:0018.9
04:0022.1
03:0024.5
02:0024.9
01:0025.2
Thursday, 10/1
00:0024.9
23:0024.3
22:0023.8
21:0026.6
20:0032.1
19:0022.2
18:0018.8
17:0032.2
16:0021.9
15:0031.2
14:0023.9
13:0074.8
12:0031
11:0050.3
10:0029.3
09:0028.8
08:0025
07:0026.5
06:0023.3
05:0021.9
04:0025.7
03:0029.9
02:0025.2
01:0024.5
Wednesday, 9/30
00:0026.6
Last 30 days, daily average: PM10 in µg/m³highest 34 µg/m³, latest 34 µg/m³02040609/99/169/239/30highest 34
too few readingsEU daily limit, 50 µg/m³
Last 30 days, daily average: PM10 in µg/m³
Values as a table
Dayµg/m³Note
Tue, 10/634provisional
Mon, 10/532provisional
Sun, 10/423.6provisional
Sat, 10/326.1provisional
Fri, 10/227.1provisional
Thu, 10/129.1provisional
Wed, 9/3025.4provisional
Tue, 9/2924.5provisional
Mon, 9/2824.7provisional
Sun, 9/2716.7provisional
Sat, 9/2611.4provisional
Fri, 9/2511.9provisional
Thu, 9/2414.7provisional
Wed, 9/239.3provisional
Tue, 9/2212.6provisional
Mon, 9/2114.1provisional
Sun, 9/2011.4provisional
Sat, 9/199.9provisional
Fri, 9/1811.2provisional
Thu, 9/1713.6provisional
Wed, 9/1619.1provisional
Tue, 9/1510.1provisional
Mon, 9/1411.9provisional
Sun, 9/139.1provisional
Sat, 9/128.4provisional
Fri, 9/116.9provisional
Thu, 9/109.4provisional
Wed, 9/921.4provisional
Tue, 9/833.1provisional
Mon, 9/7too few readings
Last 12 months, monthly average: PM10 in µg/m³highest 41 µg/m³, latest 29 µg/m³0255075DecFebAprJunAugOcthighest 41latest 29
Last 12 monthsthis month so fara year earlierEU annual limit, 40 µg/m³
Last 12 months, monthly average: PM10 in µg/m³
Values as a table
Monthµg/m³a year earlierNote
October 2026 so far28.716.5measured in 100 % of hours · provisional · year before: same days
September 20261513.7measured in 97 % of hours · provisional
August 202619.733.4measured in 100 % of hours · provisional
July 202613.630.6measured in 95 % of hours · provisional
June 202612.654.7measured in 92 % of hours · provisional
May 202617.437.2measured in 94 % of hours · provisional
April 202630.6too few readingsmeasured in 96 % of hours · provisional
March 202641.150.9measured in 99 % of hours · provisional
February 202638.669measured in 96 % of hours · provisional
January 202637.830.3measured in 95 % of hours · provisional
December 202534.541.2measured in 97 % of hours · verified
November 202526.932.5measured in 100 % of hours · verified

PM10 by year

Yardstick: EU limits (Directive 2008/50/EC)

Measure2026*20252024
Days above 50 µg/m³ (allowed 35)2777 above the number allowed49 above the number allowed
Annual average, µg/m³ (EU limit 40)25.2*37.230.6
Highest daily average, µg/m³103January 24184February 19122April 1
Highest hourly value, µg/m³243March 11922February 20876September 5
Hours measured96 %96 %96 %
Days without any reading from the station074

* 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 2024 there were 70 such days.
  • WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2024 there were 70 such days.
  • EU from 2030: annual average 20 µg/m³. Average in 2024: 31 µg/m³.
  • WHO 2021: annual average 15 µg/m³. Average in 2024: 31 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.

The worst days of 2024

DayAverageTimes the limit
Apr 1, 20241222.4 ×
Feb 1, 20241092.2 ×
Mar 31, 20241062.1 ×
Dec 30, 2024951.9 ×
Jan 31, 2024931.9 ×

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

FromToDuration
Jun 4, 2026 09:00Jun 5, 2026 11:0026 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.

How we measure

samoEKO is a brand of samoLabs, Juelich.