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Air at the Višnjan station

Višnjan, Croatia

Network: Državna mreža za trajno praćenje kvalitete zraka · Station code: HR0015A

This year, up to yesterday (October 6)

No measured day above the EU limit in 2026.

Daily average for 277 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)

Fair

Air now · Measured at 18:00

Latest values

Latest value: 18:00

Readings
PollutantValueLevel
PM1015.7 µg/m³Fair

How the air is changing

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

  • PM10: average 14.5 µg/m³, week before 7.9 µg/m³
  • PM2.5: average 5.3 µg/m³, week before 3 µg/m³

Last month there was less PM10 and PM2.5 in the air than the month before.

  • PM10: average 8.3 µg/m³, month before 15.2 µg/m³
  • PM2.5: average 2.5 µg/m³, month before 4.9 µg/m³

Show

Particulate matter PM10

15.7

Nowµg/m³

Measured at 18:00

17.8

Last 24 hoursµg/m³

measured in 83 % of hours · provisional

14.5

Last 7 daysµg/m³

measured in 100 % of hours · provisional

9.2

Last 30 daysµg/m³

measured in 100 % of hours · provisional

11.9

Last 12 monthsµg/m³

measured in 99 % of hours · provisional

Days in 2024: PM10, daily average above 50 µg/m³

1 day above the limit. 9 days without any reading from the station.

1102031JanFebMarAprMayJunJun 21: 75 µg/m³, above the limitJulAugAug 31: no data from the stationSepSep 1: no data from the stationSep 2: no data from the stationSep 3: no data from the stationSep 4: no data from the stationSep 24: no data from the stationSep 25: no data from the stationOctOct 9: no data from the stationOct 23: no data from the stationNovDec
  • above the limit
  • below the limit
  • too few readings for the day
  • no data from the station
Days above the limit with values (1)
  1. Jun 21 75

Values in µg/m³, limit 50 µg/m³.

Months of 2024

MonthDays above 50Highest dayNo readings
January0370
February0440
March0370
April0310
May0260
June1 above the number allowed750
July0260
August0211
September0246
October0192
November0280
December0310

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 27 µg/m³, latest 15 µg/m³ (17:00)02040ThuFriSatSunMonTueWedlatest 15 (17:00)
measuredmodel estimate, not counted
Last 7 days, every hour: PM10 in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
20:0015model estimate, not counted
19:0016model estimate, not counted
18:0012model estimate, not counted
17:0015.2
16:0013.9
15:0014.6
14:0013.3
13:0014.2
12:0013.4
11:0013.8
10:0015
09:0014.5
08:0013.4
07:0013.3
06:0014.7
05:0020.6
04:0021
03:0021.9
02:0023.5
01:0022.1
Tuesday, 10/6
00:0024.7
23:0027.1
22:0025.9
21:0026.2
20:0025.5
19:0024.3
18:0026.6
17:0023.6
16:0022.3
15:0022.4
14:0023.1
13:0023.4
12:0019.7
11:0014.6
10:0014.4
09:0014.8
08:0014.3
07:0014.4
06:0013.9
05:0014.9
04:0013.8
03:0014.5
02:0014.9
01:0016.9
Monday, 10/5
00:0016.4
23:0016
22:0016.5
21:0016.2
20:0017
19:0017.6
18:0017.7
17:0015.8
16:0016.5
15:0014.8
14:0017.5
13:0017.8
12:0015.3
11:0016
10:0016
09:0015.5
08:0015.3
07:0015.3
06:0015.2
05:0014.8
04:0014.2
03:0012.7
02:0012.2
01:0013.5
Sunday, 10/4
00:0014.4
23:0014.3
22:0014.2
21:0014.7
20:0016.9
19:0016.2
18:0015.2
17:0011.6
16:0010.2
15:0010.3
14:0011.1
13:0011.5
12:0011.5
11:0012.6
10:0012.5
09:0011.8
08:0012.8
07:0013.1
06:0013.7
05:0012.9
04:0012.7
03:0012.6
02:0012
01:0012.7
Saturday, 10/3
00:0012.4
23:0012.7
22:0012.7
21:0012.3
20:0013.8
19:0016
18:0015.7
17:0013.2
16:0013.7
15:0010.3
14:009.7
13:0010.6
12:0011.1
11:0012
10:0014.2
09:0014.6
08:0014.1
07:0014.3
06:0013.7
05:0013.3
04:0013.1
03:0010.8
02:009.5
01:008.9
Friday, 10/2
00:007.8
23:008.9
22:0010.9
21:0011.9
20:0017.8
19:0022.7
18:0026.1
17:0016
16:0014.1
15:0012.5
14:0012
13:0011.9
12:0012.9
11:0013.6
10:0015.3
09:0014.7
08:0014.2
07:0013.9
06:0013.7
05:0012.7
04:0011.9
03:0011.3
02:0011.9
01:0012.6
Thursday, 10/1
00:0013.6
23:0014.3
22:0015.7
21:0015.5
20:0013.5
19:0020.8
18:0017.3
17:0013.2
16:0012.2
15:0013.1
14:0013.4
13:0012.1
12:0011.1
11:0010.8
10:0011.6
09:0012.4
08:0012.4
07:0013.2
06:0013
05:0012.7
04:0012.5
03:0012.4
02:0012.5
01:0013.6
Wednesday, 9/30
00:0014.4
23:0015.7
Last 30 days, daily average: PM10 in µg/m³highest 20 µg/m³, latest 20 µg/m³01020309/99/169/239/30highest 20
Last 30 days, daily average: PM10 in µg/m³
Values as a table
Dayµg/m³Note
Tue, 10/619.8provisional
Mon, 10/515.7provisional
Sun, 10/413provisional
Sat, 10/312.6provisional
Fri, 10/213.8provisional
Thu, 10/113.5provisional
Wed, 9/3012.9provisional
Tue, 9/2913.3provisional
Mon, 9/2811.7provisional
Sun, 9/276.4provisional
Sat, 9/264.8provisional
Fri, 9/254.1provisional
Thu, 9/248provisional
Wed, 9/237.2provisional
Tue, 9/227.2provisional
Mon, 9/2110.8provisional
Sun, 9/207.6provisional
Sat, 9/197provisional
Fri, 9/186.8provisional
Thu, 9/175.1provisional
Wed, 9/166.7provisional
Tue, 9/155.2provisional
Mon, 9/145.8provisional
Sun, 9/135.9provisional
Sat, 9/125.8provisional
Fri, 9/116.9provisional
Thu, 9/109provisional
Wed, 9/910.9provisional
Tue, 9/811.6provisional
Mon, 9/78.2provisional
Last 12 months, monthly average: PM10 in µg/m³highest 16 µg/m³, latest 15 µg/m³0204060DecFebAprJunAugOcthighest 16latest 15
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 far14.77.1measured in 100 % of hours · provisional · year before: same days
September 20268.38.8measured in 100 % of hours · provisional
August 202615.229measured in 100 % of hours · provisional
July 202611.59.1measured in 100 % of hours · provisional
June 202612.516measured in 96 % of hours · provisional
May 202610.59.1measured in 99 % of hours · provisional
April 202612.812.9measured in 100 % of hours · provisional
March 202616.111.3measured in 100 % of hours · provisional
February 202610.517.3measured in 100 % of hours · provisional
January 202612.411.8measured in 100 % of hours · provisional
December 2025118.9measured in 100 % of hours · verified
November 202511.512.3measured in 100 % of hours · verified

PM10 by year

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

Measure2026*20252024
Days above 50 µg/m³ (allowed 35)051
Annual average, µg/m³ (EU limit 40)12.3*1312.1
Highest daily average, µg/m³38February 28129August 375June 21
Highest hourly value, µg/m³53March 7203August 3106June 21
Hours measured99 %99 %95 %
Days without any reading from the station009

* 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.

The column for 2023 is shown on wider screens.

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 was 1 such day.
  • WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2024 there was 1 such day.
  • EU from 2030: annual average 20 µg/m³. Average in 2024: 12 µg/m³.
  • WHO 2021: annual average 15 µg/m³. Average in 2024: 12 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
Jun 21, 2024751.5 ×

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.