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Air at the Kocani station

Kočani, North Macedonia

Network: Ministry of Environment and Physical Planning · Station code: MK0034A

This year, up to yesterday (October 6)

No exceedance on the measured days. 216 of 279 days were measured.

Daily average for 204 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)

Good

Air now · Measured at 21:00

Latest values

Latest value: 21:00

Readings
PollutantValueLevel
O₃40.4 µg/m³Good

How the air is changing

Over the last seven days there was more O₃ in the air than the week before.

  • PM2.5: average 4 µg/m³, week before 4 µg/m³
  • NO₂: too few readings to compare
  • O₃: average 32.9 µg/m³, week before 21.6 µg/m³
  • SO₂: too few readings to compare

Last month there was less PM2.5 and O₃ in the air than the month before.

  • PM2.5: average 5.3 µg/m³, month before 7.9 µg/m³
  • NO₂: too few readings to compare
  • O₃: average 26.3 µg/m³, month before 34.7 µg/m³
  • SO₂: too few readings to compare

Show

Ozone O₃

40.4

Nowµg/m³

Measured at 21:00

32

Last 24 hoursµg/m³

measured in 92 % of hours · provisional

32.9

Last 7 daysµg/m³

measured in 100 % of hours · provisional

27.9

Last 30 daysµg/m³

measured in 100 % of hours · provisional

too few readings

Last 12 months

measured in 82 % of hours · 2 months with too few readings · provisional

Days in 2026: O₃, 8-hour average above 120 µg/m³

No measured day above the limit. 61 days without any reading from the station.

1102031JanFebMarAprMayMay 3: no data from the stationMay 4: no data from the stationMay 5: no data from the stationMay 6: no data from the stationMay 7: no data from the stationMay 8: no data from the stationMay 9: no data from the stationMay 10: no data from the stationMay 11: no data from the stationMay 12: no data from the stationMay 13: no data from the stationMay 14: no data from the stationMay 15: no data from the stationMay 16: no data from the stationMay 17: no data from the stationMay 18: no data from the stationMay 19: no data from the stationMay 20: no data from the stationMay 21: no data from the stationMay 22: no data from the stationMay 23: no data from the stationMay 24: no data from the stationMay 25: no data from the stationMay 26: no data from the stationMay 27: no data from the stationMay 28: no data from the stationMay 29: no data from the stationMay 30: no data from the stationMay 31: no data from the stationJunJun 1: no data from the stationJun 2: no data from the stationJun 3: no data from the stationJun 4: no data from the stationJun 5: no data from the stationJun 6: no data from the stationJun 7: no data from the stationJun 8: no data from the stationJun 9: no data from the stationJun 10: no data from the stationJun 11: no data from the stationJun 12: no data from the stationJun 13: no data from the stationJun 14: no data from the stationJun 15: no data from the stationJun 16: no data from the stationJun 17: no data from the stationJun 18: no data from the stationJun 19: no data from the stationJun 20: no data from the stationJun 21: no data from the stationJun 22: no data from the stationJun 23: no data from the stationJun 24: no data from the stationJun 25: no data from the stationJun 26: no data from the stationJun 27: no data from the stationJun 28: no data from the stationJun 29: no data from the stationJun 30: no data from the stationJulJul 1: no data from the stationJul 2: no data from the stationAugSepOctNovDec
  • above the limit
  • below the limit
  • too few readings for the day
  • no data from the station

Months of 2026

MonthDays above 120Highest 8 hNo readings
January0310
February0420
March0640
April0670
May04829
June30
July0612
August0570
September0510
October up to yesterday0460

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 62 µg/m³, latest 39 µg/m³ (20:00)0255075ThuFriSatSunMonTueWedlatest 39 (20:00)
measuredmodel estimate, not counted
Last 7 days, every hour: O₃ in µg/m³
Values as a table
Hour toµg/m³Note
Wednesday, 10/7
21:0061model estimate, not counted
20:0038.8
19:0027
18:0023
17:0055.8
16:0062.2
15:0057.2
14:0049.6
13:0043.8
12:0040.6
11:0030.8
10:0023.2
09:0011.6
08:005.6
07:0013
06:0032.4
05:0034
04:0030.4
03:0031.8
02:0025.2
01:0026.8
Tuesday, 10/6
00:0022.4
23:0019.4
22:0029
21:0035
20:0036.8
19:0031
18:0041.8
17:0054.2
16:0057
15:0052.4
14:0048.2
13:0046.4
12:0040
11:0029.6
10:0024.2
09:009.6
08:005.8
07:0014.8
06:0030.4
05:0035.6
04:0029.6
03:0029.6
02:0024.2
01:0028.4
Monday, 10/5
00:0026.4
23:0024.8
22:0027.6
21:0037.6
20:0032.2
19:0027.2
18:0033.2
17:0047.8
16:0050
15:0047.8
14:0043
13:0040.6
12:0040
11:0031.4
10:0020.6
09:0012.2
08:006.8
07:0019.8
06:0033.6
05:0029.6
04:0030.6
03:0029.2
02:0023.8
01:0028.2
Sunday, 10/4
00:0030
23:0035.2
22:0041.4
21:0036
20:0032.6
19:0033.4
18:0043.6
17:0048.8
16:0049.8
15:0048.4
14:0044.4
13:0042.6
12:0038
11:0029
10:0029.8
09:0026.4
08:0022.8
07:0026.4
06:0034
05:0028.2
04:0035.6
03:0035.2
02:0035
01:0036.6
Saturday, 10/3
00:0036.6
23:0034.4
22:0039.4
21:0035
20:0028.6
19:0021.4
18:0030.8
17:0042.4
16:0045
15:0038.2
14:0038.8
13:0043
12:0037
11:0042.8
10:0035.6
09:0030.6
08:0034.6
07:0037.4
06:0043.4
05:0043.8
04:0043.2
03:0041.2
02:0036.4
01:0031.4
Friday, 10/2
00:0026.6
23:0022.8
22:0022.6
21:0017.2
20:0024.4
19:0032.2
18:0041.6
17:0043
16:0038.2
15:0041.8
14:0041.6
13:0033.8
12:0039
11:0035.4
10:0022
09:0022.8
08:0020.2
07:0027.4
06:0038.8
05:0039.4
04:0039.4
03:0038.8
02:0038.8
01:0039
Thursday, 10/1
00:0032.8
23:0032.2
22:0021.8
21:0017
20:0028.4
19:0040.8
18:0043.8
17:0036.4
16:0034.4
15:0038.8
14:0034.4
13:0037
12:0037.4
11:0035.8
10:0030.4
09:0021
08:0020.6
07:0029.6
06:0035.6
05:0035.6
04:0035.8
03:0036.2
02:0036
01:0037
Wednesday, 9/30
00:0037.2
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³highest 51 µg/m³, latest 46 µg/m³0501001509/99/169/239/30highest 51latest 46
target value, 120 µg/m³
Last 30 days, highest 8-hour average of the day: O₃ in µg/m³
Values as a table
Dayµg/m³Note
Tue, 10/646.4provisional
Mon, 10/541.7provisional
Sun, 10/443.6provisional
Sat, 10/340.4provisional
Fri, 10/239.3provisional
Thu, 10/137.9provisional
Wed, 9/3034.6provisional
Tue, 9/2927.4provisional
Mon, 9/2830.6provisional
Sun, 9/2732.4provisional
Sat, 9/2615.1provisional
Fri, 9/2531.6provisional
Thu, 9/2437.4provisional
Wed, 9/2329.8provisional
Tue, 9/2232.2provisional
Mon, 9/2129.7provisional
Sun, 9/2042.4provisional
Sat, 9/1944.1provisional
Fri, 9/1846.1provisional
Thu, 9/1742.5provisional
Wed, 9/1642.6provisional
Tue, 9/1535.1provisional
Mon, 9/1439.7provisional
Sun, 9/1337.7provisional
Sat, 9/1234.9provisional
Fri, 9/1139provisional
Thu, 9/1041.7provisional
Wed, 9/946.8provisional
Tue, 9/851.3provisional
Mon, 9/739provisional
Last 12 months, monthly average: O₃ in µg/m³highest 35 µg/m³, latest 34 µg/m³02040DecFebAprJunAugOcthighest 35latest 34
Last 12 monthsthis month so fara year earliermonth with days without data from the station
Last 12 months, monthly average: O₃ in µg/m³
Values as a table
Monthµg/m³a year earlierNote
October 2026 so far33.710.9measured in 100 % of hours · provisional · year before: same days
September 202626.327.3measured in 100 % of hours · provisional
August 202634.731measured in 100 % of hours · provisional
July 202634.535.7measured in 92 % of hours · provisional · 2 days without data from the station
June 2026too few readings33.130 days without data from the station
May 2026too few readings25.5measured in 4 % of hours · provisional · 29 days without data from the station
April 202629.125.5measured in 100 % of hours · provisional
March 202627.723.1measured in 100 % of hours · provisional
February 202614.817.6measured in 100 % of hours · provisional
January 202610.47.4measured in 100 % of hours · provisional
December 20257.57.3measured in 93 % of hours · verified · 1 day without data from the station
November 20258.912.1measured in 100 % 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)0²00²
Annual average, µg/m³too few21.2too few
Highest 8-hour average, µg/m³67April 2763May 170July 31
Hours measured78 %99 %62 %
Days without any reading from the station6110

* 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.

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

■ and a figure in red: more than is allowed for the whole year.

The column for 2023 is shown on wider screens.

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: 65

2 outages, 1,550 hours in total in the last 12 months.

Timeline of outages from October 7, 2025 to today

FromToDuration
May 2, 2026 03:00Jul 3, 2026 13:0062 days
Dec 15, 2025 08:00Dec 17, 2025 12:002 days

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 Ministry of Environment and Physical Planning. 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.