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Air at the Doboj station

Doboj, Republika Srpska

Network: Republic Hydrometeorological Institute of Republic of Srpska · Station code: BA0064A

This year, up to yesterday (October 6)

at least

49 days

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

35 days are allowed in the whole year.

The number allowed for the whole year has been exceeded.

at least 14 days more than allowed

at least

3 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 24, 2026, PM10 193 µg/m³ as a daily average, 3.9 times the limit.

Also: at least 17 days with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.

Also: at least 16 hours above the legal hourly limit for SO₂ of 350 µg/m³ (too few readings to compare with the allowed number).

Daily average for 221 of 279 days · data for 2026 not yet finally verified · Yardstick: limits in Republika Srpska (Uredba, Official Gazette RS 124/12, as given in the RHMZ RS report)

All figures by year and month

No data has arrived from this station since October 6, 2026 at 15:00

No reading for 29 hours.

We take the readings from the European Environment Agency (EEA), and no new values for this station are coming from there. The cause may lie with the station itself or with the data transmission.

This station is one of 6 stations in Republika Srpska from which no data has been arriving since October 6, 2026. The data stopped at almost the same time. When data from several stations stops within a few hours, the cause is probably shared, for example in the data transmission. Where exactly, we cannot tell from here.

Last reading: October 6, 2026 at 15:00
Measured then: NO₂ 29.5 µg/m³, O₃ 103.1 µg/m³, PM10 63.9 µg/m³, SO₂ 43.3 µg/m³

All outages of this station

Nearest station measuring now: Maglaj, about 21 km away.

That reading is from another place. Your air may be better or worse.

Go to that station

How the air is changing

Over the last seven days there was more PM10, NO₂, O₃, and SO₂ in the air than the week before.

  • PM10: average 36.4 µg/m³, week before 23.9 µg/m³
  • NO₂: average 33.6 µg/m³, week before 24.7 µg/m³
  • O₃: average 48.1 µg/m³, week before 43 µg/m³
  • SO₂: average 17.2 µg/m³, week before 8.4 µg/m³

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

  • PM10: too few readings to compare
  • NO₂: too few readings to compare
  • O₃: too few readings to compare
  • SO₂: too few readings to compare

Show

Particulate matter PM10

no measurement

Now

too few readings

Last 24 hours

measured in 0 % of hours

36.4

Last 7 daysµg/m³

measured in 95 % of hours · provisional

25.7

Last 30 daysµg/m³

measured in 99 % of hours · provisional

too few readings

Last 12 months

measured in 62 % of hours · provisional

Days in 2026: PM10, daily average above 50 µg/m³

49 days above the limit. 33 days without any reading from the station.

1102031JanJan 1: 78 µg/m³, above the limitJan 2: 53 µg/m³, above the limitJan 7: no data from the stationJan 8: no data from the stationJan 9: no data from the stationJan 10: no data from the stationJan 11: no data from the stationJan 13: 115 µg/m³, above the limitJan 15: 108 µg/m³, above the limitJan 16: 117 µg/m³, above the limitJan 17: 82 µg/m³, above the limitJan 19: 61 µg/m³, above the limitJan 20: 80 µg/m³, above the limitJan 21: 73 µg/m³, above the limitJan 23: 155 µg/m³, above the limitJan 24: 193 µg/m³, above the limitJan 25: 64 µg/m³, above the limitJan 27: no data from the stationJan 31: 57 µg/m³, above the limitFebFeb 3: 51 µg/m³, above the limitFeb 4: 59 µg/m³, above the limitFeb 5: 50 µg/m³, above the limitFeb 6: 62 µg/m³, above the limitFeb 7: 68 µg/m³, above the limitFeb 8: 51 µg/m³, above the limitFeb 11: 74 µg/m³, above the limitFeb 12: 52 µg/m³, above the limitFeb 14: 69 µg/m³, above the limitFeb 16: 52 µg/m³, above the limitFeb 19: no data from the stationFeb 23: 58 µg/m³, above the limitFeb 24: 67 µg/m³, above the limitFeb 25: 51 µg/m³, above the limitFeb 26: 53 µg/m³, above the limitFeb 27: 60 µg/m³, above the limitFeb 28: 64 µg/m³, above the limitMarMar 1: 66 µg/m³, above the limitMar 2: 89 µg/m³, above the limitMar 3: 73 µg/m³, above the limitMar 4: 92 µg/m³, above the limitMar 5: 65 µg/m³, above the limitMar 6: 59 µg/m³, above the limitMar 7: 68 µg/m³, above the limitMar 8: 60 µg/m³, above the limitMar 9: 75 µg/m³, above the limitMar 10: 60 µg/m³, above the limitMar 11: 56 µg/m³, above the limitMar 12: 58 µg/m³, above the limitMar 13: 52 µg/m³, above the limitMar 14: 51 µg/m³, above the limitMar 16: 57 µg/m³, above the limitMar 19: 60 µg/m³, above the limitMar 20: 51 µg/m³, above the limitMar 23: 51 µg/m³, above the limitMar 24: 56 µg/m³, above the limitMar 25: 57 µg/m³, above the limitAprApr 20: no data from the stationApr 28: no data from the stationMayMay 31: no data from the stationJunJulAugAug 1: no data from the stationAug 2: no data from the stationAug 3: no data from the stationAug 4: no data from the stationAug 14: no data from the stationAug 15: no data from the stationAug 16: no data from the stationAug 17: no data from the stationAug 18: no data from the stationAug 19: no data from the stationAug 20: no data from the stationAug 21: no data from the stationAug 22: no data from the stationAug 23: no data from the stationAug 24: no data from the stationAug 25: no data from the stationAug 26: no data from the stationAug 27: no data from the stationAug 28: no data from the stationAug 29: no data from the stationAug 30: no data from the stationAug 31: no data from the stationSepSep 1: no data from the stationOctNovDec
  • above the limit
  • below the limit
  • too few readings for the day
  • no PM10 data in the EEA database
  • no data from the station
Days above the limit with values (49)
  1. Jan 1 78
  2. Jan 2 53
  3. Jan 13 115
  4. Jan 15 108
  5. Jan 16 117
  6. Jan 17 82
  7. Jan 19 61
  8. Jan 20 80
  9. Jan 21 73
  10. Jan 23 155
  11. Jan 24 193
  12. Jan 25 64
  13. Jan 31 57
  14. Feb 3 51
  15. Feb 4 59
  16. Feb 5 50
  17. Feb 6 62
  18. Feb 7 68
  19. Feb 8 51
  20. Feb 11 74
  21. Feb 12 52
  22. Feb 14 69
  23. Feb 16 52
  24. Feb 23 58
  25. Feb 24 67
  26. Feb 25 51
  27. Feb 26 53
  28. Feb 27 60
  29. Feb 28 64
  30. Mar 1 66
  31. Mar 2 89
  32. Mar 3 73
  33. Mar 4 92
  34. Mar 5 65
  35. Mar 6 59
  36. Mar 7 68
  37. Mar 8 60
  38. Mar 9 75
  39. Mar 10 60
  40. Mar 11 56
  41. Mar 12 58
  42. Mar 13 52
  43. Mar 14 51
  44. Mar 16 57
  45. Mar 19 60
  46. Mar 20 51
  47. Mar 23 51
  48. Mar 24 56
  49. Mar 25 57

Values in µg/m³, limit 50 µg/m³.

Months of 2026

MonthDays above 50Highest dayNo readings
January13 above the number allowed1936
February16 above the number allowed741
March20 above the number allowed920
April0502
May0301
June0400
July0390
August03522
September0421
October up to yesterday0440

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 78 µg/m³, latest 64 µg/m³ (15:00)050100ThuFriSatSunMonTueWedhighest 78latest 64 (15:00)
measuredmodel estimate, not counted
Last 7 days, every hour: PM10 in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
19:0068model estimate, not counted
18:0058model estimate, not counted
17:0055model estimate, not counted
16:0058model estimate, not counted
15:0053model estimate, not counted
14:0050model estimate, not counted
13:0048model estimate, not counted
12:0048model estimate, not counted
11:0049model estimate, not counted
10:0047model estimate, not counted
09:0055model estimate, not counted
08:0048model estimate, not counted
07:0047model estimate, not counted
06:0047model estimate, not counted
05:0048model estimate, not counted
04:0051model estimate, not counted
03:0056model estimate, not counted
02:0063model estimate, not counted
01:0066model estimate, not counted
Tuesday, 10/6
00:0066model estimate, not counted
23:0066model estimate, not counted
22:0066model estimate, not counted
21:0066model estimate, not counted
20:0066model estimate, not counted
19:0066model estimate, not counted
18:0066model estimate, not counted
17:0066model estimate, not counted
16:0066model estimate, not counted
15:0063.9
14:0053.8
13:0053
12:0045.6
11:0059.8
10:0077.7
09:0075.3
08:0050.9
07:0048.1
06:0043.4
05:0039.3
04:0046.4
03:0043.3
02:0039.3
01:0043.6
Monday, 10/5
00:0058.9
23:0060.9
22:0058.2
21:0054.3
20:0056.8
19:0045
18:0040.3
17:0044.6
16:0041.3
15:0044.7
14:0041.3
13:0042.9
12:0046.7
11:0047
10:0046.1
09:0048.8
08:0039.7
07:0038.1
06:0028.7
05:0035.4
04:0030.5
03:0033.7
02:0031.2
01:0032.9
Sunday, 10/4
00:0037.6
23:0039.9
22:0040.9
21:0035.5
20:0038.7
19:0031.6
18:0027.3
17:0030.7
16:0026.4
15:0014.9
14:0018.6
13:0020.9
12:0034.9
11:0037.9
10:0034.3
09:0031.2
08:0026.4
07:0029.7
06:0030.9
05:0031
04:0033.8
03:0028.5
02:0035.4
01:0041.6
Saturday, 10/3
00:0045.7
23:0043.2
22:0043
21:0036.5
20:0029.5
19:0028.1
18:0028.9
17:0021.6
16:0026.6
15:0021.5
14:0024.7
13:0046.3
12:0070.3
11:0041.5
10:0048.3
09:0049.9
08:0042.6
07:0029
06:0037.3
05:0037.1
04:0034.2
03:0027.5
02:0030.7
01:0035.6
Friday, 10/2
00:0040.7
23:0041.9
22:0051.3
21:0041.8
20:0038.2
19:0027.8
18:0031.6
17:0028.3
16:0028.9
15:0039.2
14:0045.6
13:0051.6
12:0041.8
11:0049.3
10:0056.5
09:0052.4
08:0034.4
07:0028.4
06:0028.9
05:0023.5
04:0022.1
03:0027.6
02:0026.2
01:0039
Thursday, 10/1
00:0035.4
23:0033.2
22:0028.4
21:0028
20:0032.6
19:0030.2
18:0027.2
17:0027.9
16:0018.7
15:0021.7
14:0029.4
13:0028.2
12:0028.9
11:0037.3
10:0046.3
09:0041.5
08:0033.6
07:0021
06:0025.6
05:0023.2
04:0023.9
03:0025.9
02:0028.8
01:0026.2
Wednesday, 9/30
00:0027.9
23:0028.9
22:0029
Last 30 days, daily average: PM10 in µg/m³highest 44 µg/m³, latest 44 µg/m³02040609/99/169/239/30highest 44
too few readingslegal daily limit, 50 µg/m³
Last 30 days, daily average: PM10 in µg/m³
Values as a table
Dayµg/m³Note
Tue, 10/6too few readings
Mon, 10/543.7provisional
Sun, 10/431.6provisional
Sat, 10/336.6provisional
Fri, 10/237.4provisional
Thu, 10/129.3provisional
Wed, 9/3030provisional
Tue, 9/2928.4provisional
Mon, 9/2831.6provisional
Sun, 9/2736.5provisional
Sat, 9/2621.1provisional
Fri, 9/2512.1provisional
Thu, 9/2420provisional
Wed, 9/2317.4provisional
Tue, 9/2221.1provisional
Mon, 9/2124.8provisional
Sun, 9/2025.2provisional
Sat, 9/1920.2provisional
Fri, 9/1816.3provisional
Thu, 9/1723.4provisional
Wed, 9/1623provisional
Tue, 9/1514.6provisional
Mon, 9/1422.4provisional
Sun, 9/1316.8provisional
Sat, 9/1214.4provisional
Fri, 9/1116provisional
Thu, 9/1019.4provisional
Wed, 9/941.6provisional
Tue, 9/833.5provisional
Mon, 9/720.7provisional
Last 12 months, monthly average: PM10 in µg/m³highest 53 µg/m³, latest 38 µg/m³0204060DecFebAprJunAugOcthighest 53latest 38
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 far37.5measured in 94 % of hours · provisional
September 202623.4measured in 95 % of hours · provisional · 1 day without data from the station
August 2026too few readingsmeasured in 26 % of hours · provisional · 22 days without data from the station
July 202621.5measured in 94 % of hours · provisional
June 202624.8measured in 90 % of hours · provisional
May 202622.4measured in 92 % of hours · provisional · 1 day without data from the station
April 202633measured in 82 % of hours · provisional · 2 days without data from the station
March 202653.1measured in 97 % of hours · provisional
February 202649.8measured in 90 % of hours · provisional · 1 day without data from the station
January 2026too few readingsmeasured in 69 % of hours · provisional · 6 days without data from the station
December 2025too few readings
November 2025too few readings

PM10 by year

Yardstick: limits in Republika Srpska (Uredba, Official Gazette RS 124/12, as given in the RHMZ RS report)

Measure2026*
Days above 50 µg/m³ (allowed 35)≥ 49 above the number allowed
Annual average, µg/m³ (legal limit 40)too few
Highest daily average, µg/m³193January 24
Highest hourly value, µg/m³280January 24
Hours measured82 %
Days without any reading from the station33

* 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.

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

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.

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 2026 there were 57 such days.
  • WHO 2021: daily 45 µg/m³, at most three to four days a year. In 2026 there were 57 such days.

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 2026

DayAverageTimes the limit
Jan 24, 2026provisional1933.9 ×
Jan 23, 2026provisional1553.1 ×
Jan 16, 2026provisional1172.3 ×
Jan 13, 2026provisional1152.3 ×
Jan 15, 2026provisional1082.2 ×

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: 43

9 outages, 1,024 hours in total in the last 12 months.

Timeline of outages from October 7, 2025 to today

FromToDuration
Oct 6, 2026 15:00still ongoing29 hours
Aug 13, 2026 15:00Sep 2, 2026 09:0020 days
Jul 31, 2026 12:00Aug 5, 2026 14:005 days
May 30, 2026 08:00Jun 1, 2026 10:002 days
Apr 27, 2026 05:00Apr 29, 2026 13:002 days
Apr 19, 2026 09:00Apr 21, 2026 12:002 days
Feb 18, 2026 08:00Feb 20, 2026 07:0047 hours
Jan 26, 2026 09:00Jan 28, 2026 11:002 days
Jan 6, 2026 13:00Jan 12, 2026 14:006 days

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

Who is responsible

In Republika Srpska air quality is governed by the Air Protection Act (Official Gazette RS 124/11 and 46/17) and the Regulation on Air Quality Values (Official Gazette RS 124/12). The republic’s monitoring network is run by the Republic Hydrometeorological Institute (RHMZ RS), which publishes an air quality report every year.

We take the limit values from the RHMZ RS report for 2025, which cites the regulation. Unlike in the Federation of BiH, the hourly limit for nitrogen dioxide is 150 µg/m³, at most 18 times a year. As in the Federation, nitrogen dioxide also has a daily limit of 85 µg/m³ with no exceedance allowed. The regulation calls 500 µg/m³ of sulphur dioxide and 400 µg/m³ of nitrogen dioxide over three hours in a row a concentration dangerous to health.

We have not yet checked in the text of the law who in Republika Srpska must adopt a plan when a limit is exceeded, so we do not state it here.

We show measured values only. Whether an episode has been declared is decided by the competent authorities, who publish it on their own pages.

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 Republic Hydrometeorological Institute of Republic of Srpska. 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 those of Republika Srpska (Uredba o vrijednostima kvaliteta vazduha, Official Gazette RS 124/12), as listed by RHMZ RS in its report for 2025. Unlike in the FBiH, the hourly limit for NO₂ is 150 µg/m³. 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.