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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 7)

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 267 of 280 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 21:00

Latest values

Latest value: Wed 21:00

Readings
PollutantValueLevel
PM1073.4 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 29.7 µg/m³, week before 18.5 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

73.4

Nowµg/m³

Measured at 21:00

37.2

Last 24 hoursµg/m³

measured in 88 % of hours · provisional

29.7

Last 7 daysµg/m³

measured in 98 % of hours · provisional

18.1

Last 30 daysµg/m³

measured in 99 % of hours · provisional

26.3

Last 12 monthsµg/m³

measured in 97 % of hours · provisional

Days in 2025: PM10, daily average above 50 µg/m³

77 days above the limit. 7 days without any reading from the station.

1102031JanJan 22: 63 µg/m³, above the limitJan 29: 57 µg/m³, above the limitJan 30: 97 µg/m³, above the limitJan 31: 77 µg/m³, above the limitFebFeb 2: 56 µg/m³, above the limitFeb 3: 61 µg/m³, above the limitFeb 4: 89 µg/m³, above the limitFeb 5: 104 µg/m³, above the limitFeb 6: 87 µg/m³, above the limitFeb 7: 102 µg/m³, above the limitFeb 8: 64 µg/m³, above the limitFeb 9: 66 µg/m³, above the limitFeb 10: 64 µg/m³, above the limitFeb 11: 85 µg/m³, above the limitFeb 12: 54 µg/m³, above the limitFeb 13: 55 µg/m³, above the limitFeb 18: 119 µg/m³, above the limitFeb 19: 184 µg/m³, above the limitFeb 20: 166 µg/m³, above the limitFeb 21: 113 µg/m³, above the limitFeb 22: 75 µg/m³, above the limitFeb 23: 62 µg/m³, above the limitFeb 24: 53 µg/m³, above the limitMarMar 3: 86 µg/m³, above the limitMar 4: 92 µg/m³, above the limitMar 5: 132 µg/m³, above the limitMar 6: 116 µg/m³, above the limitMar 7: 130 µg/m³, above the limitMar 8: 99 µg/m³, above the limitMar 9: 81 µg/m³, above the limitMar 10: 75 µg/m³, above the limitMar 14: 51 µg/m³, above the limitMar 19: 98 µg/m³, above the limitMar 20: 82 µg/m³, above the limitMar 21: 69 µg/m³, above the limitAprApr 3: 73 µg/m³, above the limitApr 6: no data from the stationApr 7: no data from the stationApr 8: no data from the stationApr 12: 62 µg/m³, above the limitApr 17: 54 µg/m³, above the limitApr 24: no data from the stationApr 25: no data from the stationApr 26: no data from the stationApr 27: no data from the stationApr 29: 76 µg/m³, above the limitApr 30: 69 µg/m³, above the limitMayMay 2: 72 µg/m³, above the limitMay 3: 70 µg/m³, above the limitMay 13: 82 µg/m³, above the limitMay 14: 89 µg/m³, above the limitMay 28: 59 µg/m³, above the limitJunJun 2: 66 µg/m³, above the limitJun 3: 87 µg/m³, above the limitJun 4: 70 µg/m³, above the limitJun 5: 87 µg/m³, above the limitJun 6: 89 µg/m³, above the limitJun 7: 61 µg/m³, above the limitJun 9: 57 µg/m³, above the limitJun 10: 101 µg/m³, above the limitJun 11: 95 µg/m³, above the limitJun 12: 51 µg/m³, above the limitJun 23: 57 µg/m³, above the limitJun 24: 65 µg/m³, above the limitJun 25: 72 µg/m³, above the limitJun 26: 70 µg/m³, above the limitJun 30: 56 µg/m³, above the limitJulJul 3: 73 µg/m³, above the limitJul 21: 56 µg/m³, above the limitAugAug 7: 91 µg/m³, above the limitAug 8: 71 µg/m³, above the limitAug 9: 74 µg/m³, above the limitAug 10: 52 µg/m³, above the limitAug 12: 58 µg/m³, above the limitAug 13: 54 µg/m³, above the limitSepOctNovNov 6: 59 µg/m³, above the limitDecDec 1: 78 µg/m³, above the limitDec 2: 53 µg/m³, above the limitDec 9: 57 µg/m³, above the limitDec 10: 67 µg/m³, above the limitDec 11: 85 µg/m³, above the limitDec 12: 56 µg/m³, above the limitDec 18: 59 µg/m³, above the limitDec 19: 52 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 (77)
  1. Jan 22 63
  2. Jan 29 57
  3. Jan 30 97
  4. Jan 31 77
  5. Feb 2 56
  6. Feb 3 61
  7. Feb 4 89
  8. Feb 5 104
  9. Feb 6 87
  10. Feb 7 102
  11. Feb 8 64
  12. Feb 9 66
  13. Feb 10 64
  14. Feb 11 85
  15. Feb 12 54
  16. Feb 13 55
  17. Feb 18 119
  18. Feb 19 184
  19. Feb 20 166
  20. Feb 21 113
  21. Feb 22 75
  22. Feb 23 62
  23. Feb 24 53
  24. Mar 3 86
  25. Mar 4 92
  26. Mar 5 132
  27. Mar 6 116
  28. Mar 7 130
  29. Mar 8 99
  30. Mar 9 81
  31. Mar 10 75
  32. Mar 14 51
  33. Mar 19 98
  34. Mar 20 82
  35. Mar 21 69
  36. Apr 3 73
  37. Apr 12 62
  38. Apr 17 54
  39. Apr 29 76
  40. Apr 30 69
  41. May 2 72
  42. May 3 70
  43. May 13 82
  44. May 14 89
  45. May 28 59
  46. Jun 2 66
  47. Jun 3 87
  48. Jun 4 70
  49. Jun 5 87
  50. Jun 6 89
  51. Jun 7 61
  52. Jun 9 57
  53. Jun 10 101
  54. Jun 11 95
  55. Jun 12 51
  56. Jun 23 57
  57. Jun 24 65
  58. Jun 25 72
  59. Jun 26 70
  60. Jun 30 56
  61. Jul 3 73
  62. Jul 21 56
  63. Aug 7 91
  64. Aug 8 71
  65. Aug 9 74
  66. Aug 10 52
  67. Aug 12 58
  68. Aug 13 54
  69. Nov 6 59
  70. Dec 1 78
  71. Dec 2 53
  72. Dec 9 57
  73. Dec 10 67
  74. Dec 11 85
  75. Dec 12 56
  76. Dec 18 59
  77. Dec 19 52

Values in µg/m³, limit 50 µg/m³.

Months of 2025

MonthDays above 50Highest dayNo readings
January4 above the number allowed970
February19 above the number allowed1840
March12 above the number allowed1320
April5 above the number allowed767
May5 above the number allowed890
June15 above the number allowed1010
July2 above the number allowed730
August6 above the number allowed910
September0210
October0480
November1 above the number allowed590
December8 above the number allowed850

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 73 µg/m³ (21:00)050100ThuFriSatSunMonTueWedhighest 75latest 73 (21:00)
measuredmodel estimate, not counted
Last 7 days, every hour: PM10 in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
23:0031model estimate, not counted
22:0032model estimate, not counted
21:0073.4
20:0040
19:0048.8
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
Last 30 days, daily average: PM10 in µg/m³highest 37 µg/m³, latest 37 µg/m³02040609/109/179/2410/1highest 37
EU daily limit, 50 µg/m³
Last 30 days, daily average: PM10 in µg/m³
Values as a table
Dayµg/m³Note
Wed, 10/737.2provisional
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
Last 12 months, monthly average: PM10 in µg/m³highest 41 µg/m³, latest 30 µg/m³0255075DecFebAprJunAugOcthighest 41latest 30
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 far29.716.9measured in 98 % 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)25.3*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 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.

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 2025 there were 98 such days.
  • WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2025 there were 98 such days.
  • EU from 2030: annual average 20 µg/m³. Average in 2025: 37 µg/m³.
  • WHO 2021: annual average 15 µg/m³. Average in 2025: 37 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 2025

DayAverageTimes the limit
Feb 19, 20251843.7 ×
Feb 20, 20251663.3 ×
Mar 5, 20251322.6 ×
Mar 7, 20251302.6 ×
Feb 18, 20251192.4 ×

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 8, 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.