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Air at the Maribor station

Maribor, Slovenia

Network: Slovenian Environment Agency · Station code: SI0002A

This year, up to yesterday (October 6)

6 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.

Worst day: January 23, 2026, PM10 86 µg/m³ as a daily average, 1.7 times the limit.

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

All figures by year and month

Fair

Air now · Measured at 21:00

Latest values

Latest value: 21:00

Readings
PollutantValueLevel
PM1014.7 µg/m³Good
NO₂22.7 µg/m³Fair

How the air is changing

Over the last seven days there was more PM10, PM2.5, and NO₂ in the air than the week before.

  • PM10: average 18.8 µg/m³, week before 13 µg/m³
  • PM2.5: average 9.5 µg/m³, week before 7.2 µg/m³
  • NO₂: average 20.9 µg/m³, week before 17.4 µg/m³

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

  • PM10: average 10.3 µg/m³, month before 14.6 µg/m³
  • PM2.5: average 5.1 µg/m³, month before 7.5 µg/m³
  • NO₂: average 16.5 µg/m³, month before 17.8 µg/m³

Show

Particulate matter PM10

14.7

Nowµg/m³

Measured at 21:00

20.9

Last 24 hoursµg/m³

measured in 96 % of hours · provisional

18.8

Last 7 daysµg/m³

measured in 100 % of hours · provisional

12.2

Last 30 daysµg/m³

measured in 100 % of hours · provisional

too few readings

Last 12 months

measured in 76 % of hours · 2 months with too few readings · provisional

Last 7 days, every hour: PM10 in µg/m³highest 38 µg/m³, latest 15 µg/m³ (21:00)0204060ThuFriSatSunMonTueWedlatest 15 (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
22:0022model estimate, not counted
21:0014.7
20:0018
19:0016.9
18:0017.4
17:0020.4
16:0019.2
15:0029
14:0021.4
13:0020.2
12:0017.9
11:0035.2
10:0037.5
09:0028
08:0025.8
07:0019.4
06:0017.4
05:0016.4
04:0014.9
03:0015.9
02:0017.1
01:0016.6
Tuesday, 10/6
00:0018.6
23:0023.2
22:0035.4
21:0036.1
20:0029.2
19:0027.6
18:0023.9
17:0021.9
16:0024.4
15:0024.4
14:0024.5
13:0032.9
12:0033.5
11:0029.2
10:0022.1
09:0022
08:0019.5
07:0014.9
06:0014.7
05:0013.7
04:0012.8
03:0014.3
02:0014.4
01:0015.9
Monday, 10/5
00:0017.1
23:0020.9
22:0026.6
21:0030.8
20:0037.7
19:0027.2
18:0032.1
17:0029.6
16:0029.9
15:0028.4
14:0025.9
13:0030
12:0022.6
11:0021
10:0021
09:0020.5
08:0018.6
07:0015.7
06:0013.6
05:0012.1
04:0012
03:0012.7
02:0012.7
01:0013.5
Sunday, 10/4
00:0013.5
23:0016.1
22:0019.7
21:0023
20:0023.8
19:0018.2
18:0014.7
17:0015.2
16:0015.8
15:0015.7
14:0017.7
13:0017.4
12:0017.2
11:0014.5
10:0015.5
09:0014.1
08:0018.1
07:0012.4
06:0012.4
05:0012.2
04:0011.6
03:0012.8
02:0013
01:0014.6
Saturday, 10/3
00:0014.5
23:0017.3
22:0020.9
21:0022.5
20:0020.6
19:0017.1
18:0016.6
17:0014.9
16:0015.6
15:0019.5
14:0020.2
13:0025.6
12:0022
11:0019.1
10:0018.6
09:0016.7
08:0014.7
07:0014.7
06:0013.6
05:0013.4
04:0013.1
03:0014.3
02:0013.2
01:0013.6
Friday, 10/2
00:0015
23:0017.2
22:0022.6
21:0026.4
20:0026.7
19:0021.5
18:0018.5
17:0016.2
16:0019.8
15:0021.9
14:0022.9
13:0022.1
12:0024.3
11:0022.4
10:0027
09:0019.9
08:0019.2
07:0015.8
06:0014.2
05:0012
04:0012.1
03:0012.4
02:0013.3
01:0014
Thursday, 10/1
00:0015.6
23:0017.5
22:0017.4
21:0022
20:0023.6
19:0018.1
18:0019.1
17:0017.1
16:0017.6
15:0014.6
14:0018.6
13:0022.4
12:0021.7
11:0022.9
10:0023.5
09:0020.5
08:0020.8
07:0015.7
06:0014
05:0011
04:0010.4
03:0010.3
02:0010.5
01:0010.9
Wednesday, 9/30
00:0012.5
Last 30 days, daily average: PM10 in µg/m³highest 23 µg/m³, latest 23 µg/m³02040609/99/169/239/30highest 23
EU daily limit, 50 µg/m³
Last 30 days, daily average: PM10 in µg/m³
Values as a table
Dayµg/m³Note
Tue, 10/622.9provisional
Mon, 10/522.2provisional
Sun, 10/415.8provisional
Sat, 10/317.2provisional
Fri, 10/219.1provisional
Thu, 10/117.3provisional
Wed, 9/3017provisional
Tue, 9/2921.8provisional
Mon, 9/2819.5provisional
Sun, 9/2712.2provisional
Sat, 9/267.2provisional
Fri, 9/257provisional
Thu, 9/2414.8provisional
Wed, 9/238.3provisional
Tue, 9/229.1provisional
Mon, 9/2111.3provisional
Sun, 9/208.8provisional
Sat, 9/199.3provisional
Fri, 9/187.7provisional
Thu, 9/178.1provisional
Wed, 9/1611.1provisional
Tue, 9/158.3provisional
Mon, 9/148.6provisional
Sun, 9/137.5provisional
Sat, 9/126.6provisional
Fri, 9/114.3provisional
Thu, 9/104.6provisional
Wed, 9/914.8provisional
Tue, 9/811.8provisional
Mon, 9/711.8provisional
Last 12 months, monthly average: PM10 in µg/m³highest 34 µg/m³, latest 19 µg/m³0204060DecFebAprJunAugOcthighest 34latest 19
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 far19.1measured in 100 % of hours · provisional
September 202610.3measured in 100 % of hours · provisional
August 202614.6measured in 100 % of hours · provisional
July 202612.3measured in 100 % of hours · provisional
June 202614measured in 100 % of hours · provisional
May 202611.2measured in 100 % of hours · provisional
April 202615.2measured in 100 % of hours · provisional
March 202620measured in 100 % of hours · provisional
February 202620.1measured in 100 % of hours · provisional
January 202634.3measured in 100 % of hours · provisional
December 2025too few readings
November 2025too few readings

PM10 by year

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

Measure2026*
Days above 50 µg/m³ (allowed 35)6
Annual average, µg/m³ (EU limit 40)16.9*
Highest daily average, µg/m³86January 23
Highest hourly value, µg/m³132January 12
Hours measured100 %
Days without any reading from the station0

* 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.

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: 0

Timeline of outages from October 7, 2025 to today

In the last 12 months this station had no outage of 24 hours or longer.

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 Slovenian Environment Agency. 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.