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Air at the Plitvička Jezera station

Plitvička Jezera, Croatia

Network: Državna mreža za trajno praćenje kvalitete zraka · Station code: HR0013A

This year, up to yesterday (October 7)

at least

31 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: 27 days above the limit, the target value allows 25 as a three-year average.

1 day

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: August 6, 2026, O₃ 142 µg/m³ as a daily average, 1.2 times the limit.

Daily average for 241 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
PM1020.6 µg/m³Fair
NO₂1.6 µg/m³Good
O₃113.8 µg/m³Moderate
SO₂7.9 µg/m³Good

How the air is changing

Over the last seven days there was more PM10, PM2.5, and O₃ in the air than the week before.

  • PM10: average 24.5 µg/m³, week before 16.9 µg/m³
  • PM2.5: average 10.4 µg/m³, week before 7.4 µg/m³
  • NO₂: average 2 µg/m³, week before 1.7 µg/m³
  • O₃: average 58 µg/m³, week before 49.7 µg/m³
  • SO₂: average 7.4 µg/m³, week before 6.8 µg/m³

Last month there was less PM2.5 and O₃ in the air than the month before.

  • PM10: average 15.3 µg/m³, month before 14.8 µg/m³
  • PM2.5: average 6.7 µg/m³, month before 9.1 µg/m³
  • NO₂: average 2 µg/m³, month before 2 µg/m³
  • O₃: average 58.9 µg/m³, month before 85.7 µg/m³
  • SO₂: average 6.7 µg/m³, month before 7.1 µg/m³

Show

Ozone O₃

113.8

Nowµg/m³

Measured at 21:00

90.6

Last 24 hoursµg/m³

measured in 88 % of hours · provisional

58

Last 7 daysµg/m³

measured in 97 % of hours · provisional

53.9

Last 30 daysµg/m³

measured in 99 % of hours · provisional

64.1

Last 12 monthsµg/m³

measured in 87 % of hours · provisional

Days in 2024: O₃, 8-hour average above 120 µg/m³

9 days above the limit.

1102031JanFebMarAprMayMay 12: 121 µg/m³, above the limitJunJulAugAug 2: 121 µg/m³, above the limitAug 13: 128 µg/m³, above the limitAug 15: 122 µg/m³, above the limitAug 16: 123 µg/m³, above the limitAug 29: 128 µg/m³, above the limitAug 30: 120 µg/m³, above the limitSepSep 1: 121 µg/m³, above the limitSep 2: 121 µg/m³, above the limitOctNovDec
  • above the limit
  • below the limit
  • too few readings for the day
  • no O₃ data in the EEA database
Days above the limit with values (9)
  1. May 12 121
  2. Aug 2 121
  3. Aug 13 128
  4. Aug 15 122
  5. Aug 16 123
  6. Aug 29 128
  7. Aug 30 120
  8. Sep 1 121
  9. Sep 2 121

Values in µg/m³, limit 120 µg/m³.

Months of 2024

MonthDays above 120Highest 8 hNo readings
January0850
February0960
March01100
April01200
May1 above the number allowed1210
June01170
July01160
August6 above the number allowed1280
September2 above the number allowed1210
October0930
November0800
December0820

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 119 µg/m³, latest 114 µg/m³ (21:00)050100150ThuFriSatSunMonTueWedlatest 114 (21:00)
measuredmodel estimate, not counted
Last 7 days, every hour: O₃ in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
23:0084model estimate, not counted
22:0076model estimate, not counted
21:00113.8
20:00115.1
19:00115.8
18:00117.3
17:00118.6
16:00114.9
15:00114.3
14:00115.3
13:00113.4
12:00108.1
11:00103.3
10:0099
09:0095.1
08:0099
07:0097.5
06:0089
05:0053.5
04:0037.2
03:0028.4
02:0024.1
01:0029.1
Tuesday, 10/6
00:0026.8
23:0027.7
22:0023.5
21:0028.6
20:0030.2
19:0052.7
18:0084.3
17:00105.3
16:00102.6
15:00100
14:0098.5
13:0096.2
12:0094.1
11:0079.3
10:0057.2
09:0027.6
08:0015.1
07:0015.2
06:0017.2
05:0015.8
04:0011.1
03:0012.3
02:0010.8
01:0013.5
Monday, 10/5
00:0013.7
23:0017.7
22:0018.6
21:0020.3
20:0028.3
19:0067.9
18:00103.5
17:00109
16:00108
15:00111.2
14:00106
13:00107.2
12:00108.5
11:0097.4
10:0059.2
09:0031.4
08:0027.5
07:0029
06:0025.8
05:0031.2
04:0031
03:0026.3
02:0031.6
01:0025.6
Sunday, 10/4
00:0024.4
23:0022.4
22:0020.4
21:0027.5
20:0035.6
19:0078
18:00108.9
17:00115
16:00115.2
15:00113.8
14:00108
13:00107.4
12:00108.6
11:0095.1
10:0073.3
09:0046.8
08:0029.5
07:0024.7
06:0021
05:0021.8
04:0023.9
03:0026.4
02:0030.3
01:0029.8
Saturday, 10/3
00:0030
23:0023.5
22:0021.8
21:0024.5
20:0041.2
19:0081.1
18:00106.1
17:00108.7
16:00111.2
15:00113.5
14:00110.6
13:00105.7
12:00107
11:00104.3
10:0073.6
09:0029.7
08:0015.7
07:0016.4
06:0015.4
05:0014.8
04:0016.2
03:0014.8
02:0016.7
01:0018.6
Friday, 10/2
00:0014.9
23:0021.7
22:0021.9
21:0027.4
20:0037.6
19:0080.5
18:0097.6
17:00103.4
16:00104.7
15:00104.1
14:00103.9
13:00103
12:00101.4
11:0091.9
10:0078.1
09:0031.9
08:0010.2
07:0010.2
06:0010.1
05:0011.4
04:0014.4
03:0013.5
Thursday, 10/1
00:0012.3
23:0012.5
22:0017.7
21:0021.5
20:0047.3
19:0084.5
18:0099.7
17:00103.9
16:00103.1
15:00102.8
14:00100.7
13:0095.1
12:0093
11:0089.8
10:0074
09:0026.7
08:006.4
07:007
06:007.2
05:0010.6
04:008.2
03:009.3
02:009.3
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³ · 1 day above the limithighest 127 µg/m³, latest 116 µg/m³0501001509/109/179/2410/1highest 127latest 116
day above the limittoo few readingstarget value, 120 µg/m³
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³ · 1 day above the limit
Values as a table
Dayµg/m³Note
Wed, 10/7115.9provisional
Tue, 10/695provisional
Mon, 10/5106.4provisional
Sun, 10/4109provisional
Sat, 10/3108.4provisional
Fri, 10/2101.3provisional
Thu, 10/198.5provisional
Wed, 9/3099.3provisional
Tue, 9/29104.5provisional
Mon, 9/2895.1provisional
Sun, 9/2791.9provisional
Sat, 9/2688.4provisional
Fri, 9/2572.6provisional
Thu, 9/2485.5provisional
Wed, 9/2372.6provisional
Tue, 9/2280provisional
Mon, 9/2174.8provisional
Sun, 9/2096.7provisional
Sat, 9/1977.5provisional
Fri, 9/1864.4provisional
Thu, 9/1781.1provisional
Wed, 9/1693.1provisional
Tue, 9/1580.5provisional
Mon, 9/1484.6provisional
Sun, 9/13102.3provisional
Sat, 9/1284.9provisional
Fri, 9/1150.3provisional
Thu, 9/1097.2provisional
Wed, 9/9too few readings
Tue, 9/8126.7above the limit · provisional
Last 12 months, monthly average: O₃ in µg/m³highest 86 µg/m³, latest 58 µg/m³050100DecFebAprJunAugOcthighest 86latest 58
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 far5856measured in 97 % of hours · provisional · year before: same days
September 202658.950.4measured in 99 % of hours · provisional
August 202685.768measured in 99 % of hours · provisional
July 202673.673.1measured in 100 % of hours · provisional
June 202662.380.3measured in 96 % of hours · provisional
May 20267372.8measured in 99 % of hours · provisional
April 2026too few readings73.3measured in 50 % of hours · provisional
March 2026too few readings73.9measured in 67 % of hours · provisional
February 2026too few readings60.9measured in 71 % of hours · provisional
January 202663.768.3measured in 98 % of hours · provisional
December 202541.951.2measured in 100 % of hours · verified
November 20255753.1measured in 88 % of hours · verified · 3 days without data from the station

O₃ by year

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

Measure2026*20252024
Days with 8-hour average above 120 µg/m³ (target value 25)≥ 3127≥ 9²
Annual average, µg/m³68.6*64.4too few
Highest 8-hour average, µg/m³142August 6139August 13128August 29
Hours measured87 %92 %89 %
Days without any reading from the station0140

* 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.

≥ means at least: more than a tenth of the days or hours are missing, so the real number may be higher.

¹ Fewer than 90 % of the hours were measured, so we do not compare this average with the limit.

² Too few readings to compare with the number allowed: the figure covers only what was measured.

■ 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 2024

DayHighest 8 hTimes the limit
Aug 29, 20241281.1 ×
Aug 13, 20241281.1 ×
Aug 16, 20241231.0 ×
Aug 15, 20241221.0 ×
May 12, 20241211.0 ×

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: 13

2 outages, 313 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
Oct 23, 2025 13:00Nov 4, 2025 11:0012 days

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.