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Air at the Pula Fižela station

Pula, Croatia

Network: Državna mreža za trajno praćenje kvalitete zraka · Station code: HR0034A

This year, up to yesterday (October 6)

77 days

with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.

The target value allows 25 such days a year, averaged over three years.

In 2025: 41 days above the limit, the target value allows 25 as a three-year average.

Worst day: August 1, 2026, O₃ 158 µg/m³ as a daily average, 1.3 times the limit.

Daily average for 261 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 17:00

Latest values

Latest value: 17:00

Readings
PollutantValueLevel
NO₂1.6 µg/m³Good
O₃112.8 µg/m³Moderate

How the air is changing

Over the last seven days there was more NO₂ and O₃ in the air than the week before.

  • NO₂: average 23 µg/m³, week before 20.5 µg/m³
  • O₃: average 77.5 µg/m³, week before 64.2 µg/m³

Last month there was more NO₂ and less O₃ in the air than the month before.

  • NO₂: average 15.5 µg/m³, month before 14.1 µg/m³
  • O₃: average 71.5 µg/m³, month before 89.4 µg/m³

Show

Ozone O₃

112.8

Nowµg/m³

Measured at 17:00

67.1

Last 24 hoursµg/m³

measured in 83 % of hours · provisional

77.5

Last 7 daysµg/m³

measured in 95 % of hours · provisional

69.7

Last 30 daysµg/m³

measured in 99 % of hours · provisional

69.8

Last 12 monthsµg/m³

measured in 96 % of hours · provisional

Days in 2025: O₃, 8-hour average above 120 µg/m³

41 days above the limit.

1102031JanFebMarAprMayMay 1: 124 µg/m³, above the limitMay 2: 124 µg/m³, above the limitMay 3: 121 µg/m³, above the limitMay 4: 124 µg/m³, above the limitJunJun 11: 154 µg/m³, above the limitJun 12: 140 µg/m³, above the limitJun 13: 124 µg/m³, above the limitJun 14: 133 µg/m³, above the limitJun 15: 140 µg/m³, above the limitJun 19: 147 µg/m³, above the limitJun 22: 121 µg/m³, above the limitJun 23: 134 µg/m³, above the limitJun 25: 125 µg/m³, above the limitJulJul 3: 167 µg/m³, above the limitJul 4: 160 µg/m³, above the limitJul 5: 127 µg/m³, above the limitJul 6: 132 µg/m³, above the limitJul 10: 127 µg/m³, above the limitJul 12: 130 µg/m³, above the limitJul 13: 121 µg/m³, above the limitJul 15: 121 µg/m³, above the limitJul 19: 125 µg/m³, above the limitJul 22: 123 µg/m³, above the limitJul 27: 122 µg/m³, above the limitJul 31: 121 µg/m³, above the limitAugAug 1: 127 µg/m³, above the limitAug 8: 125 µg/m³, above the limitAug 9: 124 µg/m³, above the limitAug 10: 139 µg/m³, above the limitAug 11: 128 µg/m³, above the limitAug 12: 133 µg/m³, above the limitAug 13: 130 µg/m³, above the limitAug 14: 142 µg/m³, above the limitAug 15: 127 µg/m³, above the limitAug 16: 141 µg/m³, above the limitAug 17: 130 µg/m³, above the limitAug 19: 123 µg/m³, above the limitAug 26: 131 µg/m³, above the limitSepSep 5: 130 µg/m³, above the limitSep 19: 127 µg/m³, above the limitSep 20: 139 µg/m³, above the limitOctNovDec
  • above the limit
  • below the limit
  • too few readings for the day
Days above the limit with values (41)
  1. May 1 124
  2. May 2 124
  3. May 3 121
  4. May 4 124
  5. Jun 11 154
  6. Jun 12 140
  7. Jun 13 124
  8. Jun 14 133
  9. Jun 15 140
  10. Jun 19 147
  11. Jun 22 121
  12. Jun 23 134
  13. Jun 25 125
  14. Jul 3 167
  15. Jul 4 160
  16. Jul 5 127
  17. Jul 6 132
  18. Jul 10 127
  19. Jul 12 130
  20. Jul 13 121
  21. Jul 15 121
  22. Jul 19 125
  23. Jul 22 123
  24. Jul 27 122
  25. Jul 31 121
  26. Aug 1 127
  27. Aug 8 125
  28. Aug 9 124
  29. Aug 10 139
  30. Aug 11 128
  31. Aug 12 133
  32. Aug 13 130
  33. Aug 14 142
  34. Aug 15 127
  35. Aug 16 141
  36. Aug 17 130
  37. Aug 19 123
  38. Aug 26 131
  39. Sep 5 130
  40. Sep 19 127
  41. Sep 20 139

Values in µg/m³, limit 120 µg/m³.

Months of 2025

MonthDays above 120Highest 8 hNo readings
January0880
February0980
March01080
April01190
May4 above the number allowed1240
June9 above the number allowed1540
July12 above the number allowed1670
August13 above the number allowed1420
September3 above the number allowed1390
October0990
November0930
December0730

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: O₃ in µg/m³highest 134 µg/m³, latest 109 µg/m³ (16:00)0100200ThuFriSatSunMonTueWedlatest 109 (16:00)
measuredmodel estimate, not counted
Last 7 days, every hour: O₃ in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
19:0097model estimate, not counted
18:0096model estimate, not counted
17:0096model estimate, not counted
16:00109.1
15:00105.5
14:0096.3
13:00102.4
12:00105.2
11:0098.4
10:0090.8
09:0068.9
08:0074.4
07:0083
06:0064.5
05:0016.2
04:0013
03:0026.7
02:0066.4
01:0059.6
Tuesday, 10/6
00:0046
23:0019.2
22:0064.3
21:0031.5
20:0085.7
19:0094.8
18:00102.9
17:0099.9
16:00103.2
15:00106.3
14:0097.5
13:0097.6
12:0088.5
11:0079.7
10:0049.4
09:0023
08:0012.2
07:0035
06:0052.3
05:0066.9
04:0027.1
03:0074.4
02:0039.2
01:0038.7
Monday, 10/5
00:0032.5
23:0066.3
22:0093.3
21:00109
20:00119.6
19:00123.4
18:00128.6
17:00134
16:00132.6
15:00129.6
14:00127.3
13:00120.3
12:00114.3
02:0034.3
01:0022.6
Sunday, 10/4
00:0048.9
23:00100.6
22:0099.9
21:00104
20:00116.2
19:00120.1
18:00124.6
17:00119.1
16:00121.3
15:00118.8
14:00119.9
13:00113.9
12:00109.8
11:0096.2
10:0045.7
09:0011.5
08:0014.5
07:0040.4
06:0053.6
05:0074.1
04:0085.9
03:0074.1
02:0088
01:0075.6
Saturday, 10/3
00:0061.2
23:0094.8
22:00105.7
21:00109.5
20:00118.5
19:00124.6
18:00124.4
17:00121.1
16:00124
15:00123.5
14:00122.6
13:00116.3
12:00113.2
11:0087.2
10:0055.6
09:0022.7
08:0040.1
07:0064.9
06:0059.6
05:0040.6
04:0046.6
03:0019.3
02:0024.8
01:007.3
Friday, 10/2
00:0044.1
23:0081.4
22:0058.8
21:0079.1
20:0094.4
19:00107.3
18:00114.5
17:00112.5
16:00111.7
15:0098.6
14:00103.8
13:00106.9
12:0084.2
11:0042.9
10:0022.3
09:0028.2
08:0039.2
07:0026.4
06:0023.7
05:0025.9
04:0031.2
03:0029.1
02:0031.1
01:0044.7
Thursday, 10/1
00:0047.5
23:0060.2
22:0056.4
21:0065.2
20:0087.6
19:00102.2
18:00110.4
17:00124.4
16:00124.7
15:00109.2
14:00121.8
13:00107.4
12:0098.3
11:0069.5
10:0040.1
09:009.3
08:0014.3
07:0022.5
06:0040.1
05:0061.1
04:0065.1
03:0058
02:0069.2
01:0082.3
Wednesday, 9/30
00:0089.9
23:0085.5
22:0091.7
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³ · 2 days above the limithighest 132 µg/m³, latest 99 µg/m³0501001509/99/169/239/30highest 132latest 99
day above the limittoo few readingstarget value, 120 µg/m³
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³ · 2 days above the limit
Values as a table
Dayµg/m³Note
Tue, 10/698.8provisional
Mon, 10/5too few readings
Sun, 10/4119.2provisional
Sat, 10/3121.9above the limit · provisional
Fri, 10/2106.2provisional
Thu, 10/1112.3provisional
Wed, 9/30111.5provisional
Tue, 9/29102.1provisional
Mon, 9/28111.5provisional
Sun, 9/27100.9provisional
Sat, 9/2695.3provisional
Fri, 9/2572.4provisional
Thu, 9/2499.5provisional
Wed, 9/2382.3provisional
Tue, 9/2278.3provisional
Mon, 9/2183.6provisional
Sun, 9/2097.6provisional
Sat, 9/1996.5provisional
Fri, 9/1881.7provisional
Thu, 9/1783.4provisional
Wed, 9/16100.9provisional
Tue, 9/1592.1provisional
Mon, 9/14111.1provisional
Sun, 9/13102.3provisional
Sat, 9/1289.3provisional
Fri, 9/1179.9provisional
Thu, 9/1086.3provisional
Wed, 9/9104.1provisional
Tue, 9/8132.1above the limit · provisional
Mon, 9/7116.4provisional
Last 12 months, monthly average: O₃ in µg/m³highest 95 µg/m³, latest 76 µg/m³050100150DecFebAprJunAugOcthighest 95latest 76
Last 12 monthsthis month so fara year earliermonth with days without data from the station
Last 12 months, monthly average: O₃ in µg/m³
Values as a table
Monthµg/m³a year earlierNote
October 2026 so far76.458.8measured in 94 % of hours · provisional · year before: same days
September 202671.570.7measured in 100 % of hours · provisional
August 202689.489.8measured in 100 % of hours · provisional
July 2026too few readings92.6measured in 71 % of hours · provisional · 8 days without data from the station
June 202694.688.4measured in 96 % of hours · provisional
May 202693.180.8measured in 98 % of hours · provisional
April 202682.376.1measured in 100 % of hours · provisional
March 202670.369.5measured in 93 % of hours · provisional
February 20265952.7measured in 100 % of hours · provisional
January 202645.751.5measured in 100 % of hours · provisional
December 202529.542.2measured in 100 % of hours · verified
November 202552.247.8measured in 100 % of hours · verified

O₃ by year

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

Measure2026*20252024
Days with 8-hour average above 120 µg/m³ (target value 25)774142
Annual average, µg/m³77.5*67.867.7
Highest 8-hour average, µg/m³158August 1167July 3144August 30
Hours measured95 %100 %96 %
Days without any reading from the station809

* 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.

The column for 2023 is shown on wider screens.

The worst days of 2025

DayHighest 8 hTimes the limit
Jul 3, 20251671.4 ×
Jul 4, 20251601.3 ×
Jun 11, 20251541.3 ×
Jun 19, 20251471.2 ×
Aug 14, 20251421.2 ×

Daily average in µg/m³, daily limit 120 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: 10

2 outages, 243 hours in total in the last 12 months.

Timeline of outages from October 7, 2025 to today

FromToDuration
Jul 13, 2026 12:00Jul 22, 2026 13:009 days
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.