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Air at the Novi Sad Liman station

Novi Sad, Serbia

Network: Agency for Environmental Protection · Station code: RS1008A

This year, up to yesterday (October 7)

72 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: 40 days above the limit, the target value allows 25 as a three-year average.

Worst day: July 17, 2026, O₃ 170 µg/m³ as a daily average, 1.4 times the limit.

Daily average for 278 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 00:00

Latest values

Latest value: 00:00

Readings
PollutantValueLevel
NO₂17.8 µg/m³Fair
O₃102.1 µg/m³Moderate
SO₂25.9 µg/m³Fair

How the air is changing

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

  • NO₂: average 24.5 µg/m³, week before 18.9 µg/m³
  • O₃: average 73.7 µg/m³, week before 58.7 µg/m³
  • SO₂: average 7.8 µg/m³, week before 6 µg/m³

Last month there was more NO₂ and less O₃ and SO₂ in the air than the month before.

  • NO₂: average 17.5 µg/m³, month before 12.9 µg/m³
  • O₃: average 71.8 µg/m³, month before 103.6 µg/m³
  • SO₂: average 7 µg/m³, month before 9.1 µg/m³

Show

Ozone O₃

102.1

Nowµg/m³

Measured at 00:00

74

Last 24 hoursµg/m³

measured in 88 % of hours · provisional

73.7

Last 7 daysµg/m³

measured in 98 % of hours · provisional

68.4

Last 30 daysµg/m³

measured in 98 % of hours · provisional

62.7

Last 12 monthsµg/m³

measured in 98 % of hours · provisional

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

48 days above the limit.

1102031JanFebMarAprMayMay 5: 131 µg/m³, above the limitJunJun 6: 126 µg/m³, above the limitJun 7: 138 µg/m³, above the limitJun 8: 129 µg/m³, above the limitJun 18: 144 µg/m³, above the limitJun 19: 125 µg/m³, above the limitJun 20: 124 µg/m³, above the limitJun 21: 138 µg/m³, above the limitJun 22: 123 µg/m³, above the limitJun 29: 123 µg/m³, above the limitJun 30: 126 µg/m³, above the limitJulJul 10: 155 µg/m³, above the limitJul 12: 149 µg/m³, above the limitJul 13: 132 µg/m³, above the limitJul 14: 146 µg/m³, above the limitJul 15: 151 µg/m³, above the limitJul 16: 147 µg/m³, above the limitJul 17: 138 µg/m³, above the limitJul 18: 145 µg/m³, above the limitJul 19: 134 µg/m³, above the limitJul 22: 123 µg/m³, above the limitJul 23: 122 µg/m³, above the limitJul 27: 122 µg/m³, above the limitJul 28: 148 µg/m³, above the limitJul 31: 126 µg/m³, above the limitAugAug 1: 143 µg/m³, above the limitAug 2: 129 µg/m³, above the limitAug 12: 134 µg/m³, above the limitAug 13: 120 µg/m³, above the limitAug 14: 137 µg/m³, above the limitAug 15: 149 µg/m³, above the limitAug 16: 149 µg/m³, above the limitAug 17: 133 µg/m³, above the limitAug 18: 165 µg/m³, above the limitAug 19: 129 µg/m³, above the limitAug 20: 120 µg/m³, above the limitAug 21: 130 µg/m³, above the limitAug 23: 125 µg/m³, above the limitAug 24: 140 µg/m³, above the limitAug 25: 136 µg/m³, above the limitAug 26: 130 µg/m³, above the limitAug 27: 134 µg/m³, above the limitSepSep 2: 129 µg/m³, above the limitSep 3: 128 µg/m³, above the limitSep 4: 130 µg/m³, above the limitSep 5: 140 µg/m³, above the limitSep 6: 150 µg/m³, above the limitSep 23: 120 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 (48)
  1. May 5 131
  2. Jun 6 126
  3. Jun 7 138
  4. Jun 8 129
  5. Jun 18 144
  6. Jun 19 125
  7. Jun 20 124
  8. Jun 21 138
  9. Jun 22 123
  10. Jun 29 123
  11. Jun 30 126
  12. Jul 10 155
  13. Jul 12 149
  14. Jul 13 132
  15. Jul 14 146
  16. Jul 15 151
  17. Jul 16 147
  18. Jul 17 138
  19. Jul 18 145
  20. Jul 19 134
  21. Jul 22 123
  22. Jul 23 122
  23. Jul 27 122
  24. Jul 28 148
  25. Jul 31 126
  26. Aug 1 143
  27. Aug 2 129
  28. Aug 12 134
  29. Aug 13 120
  30. Aug 14 137
  31. Aug 15 149
  32. Aug 16 149
  33. Aug 17 133
  34. Aug 18 165
  35. Aug 19 129
  36. Aug 20 120
  37. Aug 21 130
  38. Aug 23 125
  39. Aug 24 140
  40. Aug 25 136
  41. Aug 26 130
  42. Aug 27 134
  43. Sep 2 129
  44. Sep 3 128
  45. Sep 4 130
  46. Sep 5 140
  47. Sep 6 150
  48. Sep 23 120

Values in µg/m³, limit 120 µg/m³.

Months of 2024

MonthDays above 120Highest 8 hNo readings
January0760
February0930
March01050
April01150
May1 above the number allowed1310
June10 above the number allowed1440
July14 above the number allowed1550
August17 above the number allowed1650
September6 above the number allowed1500
October0800
November0730
December0620

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 133 µg/m³, latest 93 µg/m³ (23:00)050100150ThuFriSatSunMonTueWedlatest 93 (23:00)
measuredmodel estimate, not counted
Last 7 days, every hour: O₃ in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
00:0030model estimate, not counted
23:0093.1
22:0091.9
21:0083.5
20:0086.1
19:00119.1
18:00125.5
17:00133.4
16:00117.2
15:00116.3
14:0077.1
13:0055.7
12:0047
11:0055model estimate, not counted
10:0018
09:0015.7
08:0039.7
07:0050.2
06:0052.6
05:0055.2
04:0065
03:0042.6
02:0069.2
01:0096.9
Tuesday, 10/6
00:00104
23:00102
22:0090.2
21:0096.1
20:0081
19:00111.7
18:00122.2
17:00124.5
16:00123.9
15:00120.2
14:00120.3
13:00112
12:0080.2
11:0034.4
10:0017.6
09:0029.3
08:0048.9
07:0060.5
06:0078.7
05:0068.6
04:0067
03:0051.8
02:0051.9
01:0084.2
Monday, 10/5
00:0087.6
23:0080.9
22:0076.8
21:0064.6
20:0052
19:0097.9
18:00114.5
17:00121.4
16:00119.9
15:00117.7
14:00109.1
13:0056.5
12:0018.5
11:0016.1
10:0020.4
09:0020.8
08:0038.9
07:0054.1
06:0041.7
05:0024.7
04:0066.3
03:0078.5
02:0077.9
01:0076.7
Sunday, 10/4
00:0067.8
23:0069.6
22:0076.7
21:0069.9
20:0061.4
19:0089.3
18:0096.2
17:00102
16:00102.3
15:00100.7
14:0097.2
13:0092.1
12:0076.7
11:0055.3
09:0049.1
08:0041.5
07:0042.3
06:0045.2
05:0047.7
04:0048
03:0055.8
02:0047.9
01:0060.2
Saturday, 10/3
00:0070.5
23:0071.8
22:0075.2
21:0074.6
20:0074.5
19:0096.7
18:00110.9
17:00109.7
16:00111.3
15:00110
14:00108.5
13:00104.4
12:0092.3
11:0045
10:0038.6
09:0029.9
08:0025.5
07:0030.9
06:0035.2
05:0036.4
04:0064.3
03:0077.2
02:0072
01:0067.3
Friday, 10/2
00:0075
23:0075.3
22:0071.6
21:0058
20:0075.4
19:00103
18:00114.9
17:00113.6
16:00105.7
15:00103.1
14:00103.5
13:0098.3
12:0085.5
11:0073.6
10:0064.6
09:0047.4
08:0042
07:0066.9
06:0075.6
05:0051.6
04:0032.3
03:0015.1
02:006.8
01:0019.2
Thursday, 10/1
00:0064
23:0073.1
22:0067.6
21:0061
20:0080.8
19:0097
18:00103
17:00103.7
16:0099.9
15:0097.6
14:0095.5
13:0089.1
12:0084.9
11:0077.7
10:0058.9
08:0045.3
07:0057.7
06:0059.2
05:0057
04:0081.5
03:0087.5
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³ · 5 days above the limithighest 157 µg/m³, latest 109 µg/m³01002009/109/179/2410/1highest 157latest 109
day above the limittarget value, 120 µg/m³
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³ · 5 days above the limit
Values as a table
Dayµg/m³Note
Wed, 10/7109.1provisional
Tue, 10/6114.5provisional
Mon, 10/599.6provisional
Sun, 10/494.6provisional
Sat, 10/3105.5provisional
Fri, 10/2103.4provisional
Thu, 10/196.3provisional
Wed, 9/3094.8provisional
Tue, 9/2995.7provisional
Mon, 9/2891.3provisional
Sun, 9/2799.3provisional
Sat, 9/2688.2provisional
Fri, 9/2563.2provisional
Thu, 9/2475.7provisional
Wed, 9/2360.3provisional
Tue, 9/2263.1provisional
Mon, 9/21104.9provisional
Sun, 9/20131.2above the limit · provisional
Sat, 9/19107provisional
Fri, 9/1892provisional
Thu, 9/17117.8provisional
Wed, 9/16132.8above the limit · provisional
Tue, 9/1597.9provisional
Mon, 9/1487.5provisional
Sun, 9/13102.8provisional
Sat, 9/1294.2provisional
Fri, 9/1170.8provisional
Thu, 9/10122.8above the limit · provisional
Wed, 9/9157.5above the limit · provisional
Tue, 9/8134.4above the limit · provisional
Last 12 months, monthly average: O₃ in µg/m³highest 104 µg/m³, latest 74 µg/m³050100150DecFebAprJunAugOcthighest 104latest 74
Last 12 monthsthis month so fara year earlier
Last 12 months, monthly average: O₃ in µg/m³
Values as a table
Monthµg/m³a year earlierNote
October 2026 so far73.733.3measured in 98 % of hours · provisional · year before: same days
September 202671.862.7measured in 98 % of hours · provisional
August 2026103.686.4measured in 99 % of hours · provisional
July 202691.384.2measured in 99 % of hours · provisional
June 20268389.9measured in 98 % of hours · provisional
May 202684.673measured in 99 % of hours · provisional
April 202673.367.7measured in 99 % of hours · provisional
March 202652.159.9measured in 98 % of hours · provisional
February 20264545.3measured in 94 % of hours · provisional
January 202641.335.9measured in 99 % of hours · provisional
December 202523.124.7measured in 99 % of hours · verified
November 202529.530.4measured in 95 % of hours · verified

O₃ by year

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

Measure2026*20252024
Days with 8-hour average above 120 µg/m³ (target value 25)724048
Annual average, µg/m³72.2*58.362
Highest 8-hour average, µg/m³170July 17159June 23165August 18
Hours measured98 %98 %98 %
Days without any reading from the station000

* 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.

■ 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 18, 20241651.4 ×
Jul 10, 20241551.3 ×
Jul 15, 20241511.3 ×
Sep 6, 20241501.2 ×
Aug 16, 20241491.2 ×

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: 3

2 outages, 63 hours in total in the last 12 months.

Timeline of outages from October 8, 2025 to today

FromToDuration
Feb 12, 2026 09:00Feb 13, 2026 18:0033 hours
Nov 11, 2025 10:00Nov 12, 2025 16:0030 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 Agency for Environmental Protection. 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.