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Air at the Sarajevo - Vogosca station

Vogošća, Sarajevo Canton · Federation of Bosnia and Herzegovina

Network: Federal Hydrometeorological Institute · Station code: BA0061A

This year, up to yesterday (October 7)

at least

27 days

with a daily average of particulate matter PM10 above the legal limit of 50 µg/m³.

Readings are missing for part of the period, so the real number may be higher.

In 2025: 62 days above the limit, 35 allowed.

at least

2 days

with a daily average of sulphur dioxide (SO₂) above the legal limit of 125 µg/m³.

Readings are missing for part of the period, so the real number may be higher.

Worst day: January 23, 2026, PM10 265 µg/m³ as a daily average, 5.3 times the limit.

At least 3 days with a daily average of PM10 above 150 µg/m³, the warning threshold in the Federation of BiH.

These are measured values only. Whether a warning or alert episode has been declared is decided and published by the competent authorities.

Also: at least 3 hours above the legal hourly limit for SO₂ of 350 µg/m³ (too few readings to compare with the allowed number).

Daily average for 231 of 280 days · data for 2026 not yet finally verified · Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)

All figures by year and month

Moderate

Air now · Measured at 00:00

Latest values

Latest value: 00:00

Readings
PollutantValueLevel
PM1033 µg/m³Fair
NO₂37 µg/m³Moderate
SO₂1.7 µg/m³Good

How the air is changing

Over the last seven days there was more PM10 and NO₂ and less SO₂ in the air than the week before.

  • PM10: average 23.2 µg/m³, week before 17.5 µg/m³
  • PM2.5: average 12.9 µg/m³, week before 12.4 µg/m³
  • NO₂: average 22.7 µg/m³, week before 16 µg/m³
  • SO₂: average 5.5 µg/m³, week before 7.8 µg/m³

There are not enough readings to compare with the month before.

  • PM10: too few readings to compare
  • PM2.5: too few readings to compare
  • NO₂: too few readings to compare
  • SO₂: too few readings to compare

Show

Particulate matter PM10

33

Nowµg/m³

Measured at 00:00

33.2

Last 24 hoursµg/m³

measured in 92 % of hours · provisional

23.2

Last 7 daysµg/m³

measured in 100 % of hours · provisional

too few readings

Last 30 days

measured in 52 % of hours · provisional

too few readings

Last 12 months

measured in 89 % of hours · 1 month with too few readings · provisional

Days in 2023: PM10, daily average above 50 µg/m³

26 days above the limit. 3 days without any reading from the station.

1102031JanJan 1: 67 µg/m³, above the limitJan 2: 89 µg/m³, above the limitJan 3: 88 µg/m³, above the limitJan 4: 59 µg/m³, above the limitJan 6: 68 µg/m³, above the limitJan 7: 66 µg/m³, above the limitFebFeb 12: 54 µg/m³, above the limitMarAprMayJunJulAugSepOctNovNov 17: no data from the stationNov 18: no data from the stationNov 19: no data from the stationNov 21: 110 µg/m³, above the limitNov 22: 51 µg/m³, above the limitNov 27: 58 µg/m³, above the limitNov 30: 50 µg/m³, above the limitDecDec 5: 91 µg/m³, above the limitDec 9: 74 µg/m³, above the limitDec 10: 137 µg/m³, above the limitDec 11: 62 µg/m³, above the limitDec 12: 127 µg/m³, above the limitDec 13: 58 µg/m³, above the limitDec 18: 69 µg/m³, above the limitDec 19: 114 µg/m³, above the limitDec 20: 141 µg/m³, above the limitDec 21: 114 µg/m³, above the limitDec 27: 51 µg/m³, above the limitDec 28: 75 µg/m³, above the limitDec 29: 95 µg/m³, above the limitDec 30: 76 µg/m³, above the limitDec 31: 83 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 (26)
  1. Jan 1 67
  2. Jan 2 89
  3. Jan 3 88
  4. Jan 4 59
  5. Jan 6 68
  6. Jan 7 66
  7. Feb 12 54
  8. Nov 21 110
  9. Nov 22 51
  10. Nov 27 58
  11. Nov 30 50
  12. Dec 5 91
  13. Dec 9 74
  14. Dec 10 137
  15. Dec 11 62
  16. Dec 12 127
  17. Dec 13 58
  18. Dec 18 69
  19. Dec 19 114
  20. Dec 20 141
  21. Dec 21 114
  22. Dec 27 51
  23. Dec 28 75
  24. Dec 29 95
  25. Dec 30 76
  26. Dec 31 83

Values in µg/m³, limit 50 µg/m³.

Months of 2023

MonthDays above 50Highest dayNo readings
January6 above the number allowed890
February1 above the number allowed540
March0390
April0300
May0220
June0450
July0360
August0320
September0140
October0210
November4 above the number allowed1103
December15 above the number allowed1410

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 81 µg/m³, latest 33 µg/m³ (00:00)050100ThuFriSatSunMonTueWedlatest 33 (00:00)
measuredmodel estimate, not counted
Last 7 days, every hour: PM10 in µg/m³
Values as a table
Hour toµg/m³Note
Thursday, 10/8
01:0020model estimate, not counted
Wednesday, 10/7
00:0033
23:0080.7
22:0059.1
21:0036.6
20:0046.2
19:0039.5
18:0032.3
17:0015.6
16:0013.6
15:0016.2
14:0016.8
13:0027.9
12:0034.3
11:0048.4
10:0043.4
09:0042.4
08:0030.7
07:0023.9
06:0021.9
05:0023.5
04:0022.3
03:0021.5
02:0025.2
01:0028.6
Tuesday, 10/6
00:0040.2
23:0041.8
22:0054.4
21:0070.4
20:0070.9
19:0043.4
18:0033.3
17:0021
16:0018.3
15:0019.2
14:0025.8
13:0024.7
12:0036.1
11:0035.4
10:0026.8
09:0034.2
08:0034.2
07:0015.5
06:0014
05:0013.5
04:0015.1
03:0015.9
02:0019.1
01:0025.8
Monday, 10/5
00:0038.7
23:0055.3
22:0052.1
21:0046.9
20:0044.3
19:0035.4
18:0031.1
17:0020.9
16:0019.6
15:0020.3
14:0021.7
13:0018.6
12:0017.8
11:0039
10:0022.4
09:0027.2
08:0018.2
07:0012.2
06:0011
05:0011.8
04:0012.2
03:0010.5
02:0017.1
01:0017.1
Sunday, 10/4
00:0023.9
23:0023.8
22:0034.5
21:0028.9
20:0043.6
19:0026.5
18:0021.5
17:0016.7
16:0013.8
15:0014.7
14:0016.4
13:0015.7
12:0017.4
11:0021.1
10:0020.3
09:0017.8
08:0017.6
07:0011.4
06:0010.3
05:0015.3
04:0013.6
03:0019.7
02:0021
01:0022.1
Saturday, 10/3
00:0018
23:0018.4
22:0025.2
21:0044.6
20:0038.4
19:0018.6
18:0013.8
17:0012.4
16:0011
15:0010
14:0013.1
13:0017.7
12:0023.4
11:0025.7
10:0020.6
09:0021.4
08:0020.5
07:0012.8
06:0012
05:0012.2
04:0014.7
03:0014.4
02:0018.8
01:0022.8
Friday, 10/2
00:0024
23:0022.2
22:0025.4
21:0032.4
20:0028.6
19:0013.1
18:008
17:0016.6
16:0014.5
15:0015.4
14:0014.3
13:0015.3
12:0014.5
11:0015.4
10:0016.8
09:0018.8
08:0018.5
07:0012.3
06:0010
05:008.9
04:009.4
03:0010
02:0012.7
01:0013
Thursday, 10/1
00:0015.8
23:0016.1
22:0035.8
21:0025.8
20:0029.3
19:0019.7
18:0014.9
17:009.1
16:0012.4
15:0016.3
14:0017.7
13:0021.5
12:0020.3
11:0020.2
10:0019
09:0017.8
08:0019.4
07:0011.8
06:0011
05:009.7
04:0011
Last 30 days, daily average: PM10 in µg/m³highest 33 µg/m³, latest 33 µg/m³02040609/109/179/2410/1highest 33
too few readingslegal daily limit, 50 µg/m³no data from the station
Last 30 days, daily average: PM10 in µg/m³
Values as a table
Dayµg/m³Note
Wed, 10/732.6provisional
Tue, 10/631.2provisional
Mon, 10/525.9provisional
Sun, 10/420.3provisional
Sat, 10/319.2provisional
Fri, 10/216.2provisional
Thu, 10/117provisional
Wed, 9/3017.9provisional
Tue, 9/2918.5provisional
Mon, 9/2817.7provisional
Sun, 9/2722.9provisional
Sat, 9/2619.5provisional
Fri, 9/2512.6provisional
Thu, 9/2413.7provisional
Wed, 9/2311.4provisional
Tue, 9/22too few readings
Mon, 9/21no data from the station
Sun, 9/20no data from the station
Sat, 9/19no data from the station
Fri, 9/18no data from the station
Thu, 9/17no data from the station
Wed, 9/16no data from the station
Tue, 9/15no data from the station
Mon, 9/14no data from the station
Sun, 9/13no data from the station
Sat, 9/12no data from the station
Fri, 9/11no data from the station
Thu, 9/10no data from the station
Wed, 9/9no data from the station
Tue, 9/8no data from the station
Last 12 months, monthly average: PM10 in µg/m³highest 78 µg/m³, latest 23 µg/m³050100DecFebAprJunAugOcthighest 78latest 23
Last 12 monthsthis month so fara year earlierlegal annual limit, 40 µg/m³month with days without data from the station
Last 12 months, monthly average: PM10 in µg/m³
Values as a table
Monthµg/m³a year earlierNote
October 2026 so far23.214.4measured in 100 % of hours · provisional · year before: same days
September 2026too few readings16.7measured in 30 % of hours · provisional · 20 days without data from the station
August 202624.716.3measured in 96 % of hours · provisional
July 202616.216.3measured in 93 % of hours · provisional
June 202618.120.3measured in 92 % of hours · provisional · 1 day without data from the station
May 202614.411.4measured in 94 % of hours · provisional
April 202624.419.1measured in 79 % of hours · provisional · 4 days without data from the station
March 202636.227.3measured in 100 % of hours · provisional
February 202632.459measured in 100 % of hours · provisional
January 202678.280.2measured in 88 % of hours · provisional · 2 days without data from the station
December 202563.162.5measured in 100 % of hours · verified
November 202539.675.3measured in 100 % of hours · verified

PM10 by year

Yardstick: legal limits in the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19, 3/21)

Measure2026*20252024
Days above 50 µg/m³ (allowed 35)≥ 27²62 above the number allowed66 above the number allowed
Days above 150 µg/m³ (warning threshold FBiH)≥ 3 above the number allowed7 above the number allowed8 above the number allowed
Days above 300 µg/m³ (alert threshold FBiH)000
Annual average, µg/m³ (legal limit 40)too few32.636.5
Highest daily average, µg/m³265January 23249January 21205January 23
Highest hourly value, µg/m³305January 23320January 5479March 27
Hours measured86 %100 %99 %
Days without any reading from the station2701

* 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.

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

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.

There is no allowed number for the warning and alert thresholds: every such hour or day is in red.

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 2023 there were 29 such days.
  • WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2023 there were 29 such days.
  • EU from 2030: annual average 20 µg/m³. Average in 2023: 20 µg/m³.
  • WHO 2021: annual average 15 µg/m³. Average in 2023: 20 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 2023

DayAverageTimes the limit
Dec 20, 20231412.8 ×
Dec 10, 20231372.7 ×
Dec 12, 20231272.5 ×
Dec 19, 20231142.3 ×
Dec 21, 20231142.3 ×

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: 36

8 outages, 853 hours in total in the last 12 months.

Timeline of outages from October 8, 2025 to today

FromToDuration
Sep 1, 2026 09:00Sep 22, 2026 09:0021 days
Jul 1, 2026 09:00Jul 2, 2026 09:0024 hours
Jun 9, 2026 05:00Jun 11, 2026 11:002 days
May 23, 2026 01:00May 24, 2026 08:0031 hours
Apr 10, 2026 04:00Apr 13, 2026 11:003 days
Apr 4, 2026 12:00Apr 7, 2026 09:003 days
Jan 26, 2026 15:00Jan 28, 2026 14:0047 hours
Jan 9, 2026 14:00Jan 11, 2026 11:0045 hours

Calculated from the hourly values the EEA publishes. If late values arrive afterwards, an outage gets shorter or disappears.

Who is responsible

Air quality in the Federation of BiH is monitored by three networks of stations: the federal, the cantonal and the municipal one (Air Protection Act, Official Gazette FBiH 72/24, Art. 12 to 16).

Federal Hydrometeorological Institute (FHMZ)
Runs the federal network, collects the data of all networks and publishes it. It issues a report every month and, every year by 31 July, the annual air quality report (Art. 14, 19 and 63).
Canton
Sets up the cantonal network and is responsible for the measures. When limit values are exceeded, it adopts an air quality plan. When warning or alert thresholds are at risk of being exceeded, it adopts a short-term intervention plan. When the information threshold or a concentration dangerous to health is exceeded, it informs the public (Art. 15, 22, 25, 27 and 61).
Municipality
May run its own stations with the consent of the canton and must publish their results (Art. 16 and 17).
Inspectorates
The inspectorates of the Federation, the canton and the municipality supervise the law and the measures, each within its remit (Art. 71).

What the law requires when a limit is exceeded

A limit value is not a recommendation. The deadline for meeting the limit values for sulphur dioxide, nitrogen dioxide and particulate matter expired on 1 January 2021. Since then only the number of exceedances that the Pravilnik allows applies (Official Gazette FBiH 1/12, Annex X). The Air Protection Act adds that limit values, once met, must not be exceeded again (Art. 5(4)).

The law allows: for PM10 at most 35 days a year above 50 µg/m³, for sulphur dioxide at most 24 hours above 350 µg/m³ and at most 3 days above 125 µg/m³, for nitrogen dioxide at most 18 hours above 200 µg/m³ and no day with a daily average above 85 µg/m³ (Annex X).

When limits are exceeded, the canton adopts an air quality plan with measures that shorten the period of exceedance. The plan is published within eight days of adoption (Art. 8, 25, 26 and 63).

The alert thresholds are 500 µg/m³ for sulphur dioxide and 400 µg/m³ for nitrogen dioxide over three hours in a row, and 300 µg/m³ for PM10 and 280 µg/m³ for PM2.5 as a daily average (Pravilnik, Annex XIV, amended in Official Gazette FBiH 3/21). When such a situation threatens, the canton must have a short-term intervention plan. It can restrict traffic, construction work, the operation of plants and heating (Art. 27 and 28).

When the information threshold or a concentration dangerous to health is exceeded, the competent cantonal authorities inform the public through radio, television, newspapers and the internet: where, since when, how much was measured, what is expected and how to protect oneself (Art. 61 and 62).

The limit values in BiH match the EU rules of 2008. Since 2021 the World Health Organization has recommended much lower values, for PM10 45 µg/m³ a day and 15 µg/m³ a year. From 2030 the EU lowers the annual PM10 limit to 20 µg/m³ (Directive (EU) 2024/2881).

We checked the rules against the published texts on 7 October 2026.

Where the data comes from

Measured by Federal Hydrometeorological Institute. 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 limits are the legal limits of the Federation of BiH (Pravilnik, Official Gazette FBiH 1/12, 50/19 and 3/21, Annexes X and XIV). They match EU Directive 2008/50/EC. 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.