Air at the Gradina station
Pljevlja, Montenegro
Network: Environmental Protection Agency of Montenegro · Station code: ME0007A
This year, up to the last reading (September 9)
at least
1 day
with an 8-hour average of ozone (O₃) above the target value of 120 µg/m³.
Readings are missing for part of the period, so the real number may be higher.
Worst day: August 12, 2026, O₃ 123 µg/m³ as a daily average, 1.0 times the limit.
Daily average for 237 of 279 days · data for 2026 not yet finally verified · Yardstick: EU limits (Directive 2008/50/EC)
No data has arrived from this station since September 9, 2026 at 15:00
No reading for 28 days.
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.
Last reading: September 9, 2026 at 15:00
Measured then: NO₂ 8.2 µg/m³, O₃ 110.9 µg/m³, SO₂ 4.8 µg/m³
Nearest station measuring now: Pljevlja, Montenegro, about 11 km away.
That reading is from another place. Your air may be better or worse.
How the air is changing
There are not enough readings to compare with the week before.
- NO₂: too few readings to compare
- O₃: too few readings to compare
- SO₂: too few readings to compare
There are not enough readings to compare with the month before.
- NO₂: too few readings to compare
- O₃: too few readings to compare
- SO₂: too few readings to compare
Show
Nitrogen dioxide NO₂
no measurement
Now
too few readings
Last 24 hours
measured in 0 % of hours
too few readings
Last 7 days
measured in 0 % of hours
too few readings
Last 30 days
measured in 9 % of hours · provisional
too few readings
Last 12 months
measured in 89 % of hours · 1 month with too few readings · provisional
Days in 2026: NO₂, at least one hour above 200 µg/m³
No measured day above the limit. 31 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Months of 2026
| Month | Days with an hour above 200 | Hours above 200 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 15 | 0 |
| February | 0 | 0 | 10 | 0 |
| March | 0 | 0 | 11 | 0 |
| April | 0 | 0 | 15 | 0 |
| May | 0 | 0 | 19 | 0 |
| June | 0 | 0 | 29 | 3 |
| July | 0 | 0 | 29 | 1 |
| August | 0 | 0 | 28 | 0 |
| September | 0 | 0 | 11 | 21 |
| October up to yesterday | 6 |
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.
There are no readings for this period.
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | no data from the station | |
| Mon, 10/5 | no data from the station | |
| Sun, 10/4 | no data from the station | |
| Sat, 10/3 | no data from the station | |
| Fri, 10/2 | no data from the station | |
| Thu, 10/1 | no data from the station | |
| Wed, 9/30 | no data from the station | |
| Tue, 9/29 | no data from the station | |
| Mon, 9/28 | no data from the station | |
| Sun, 9/27 | no data from the station | |
| Sat, 9/26 | no data from the station | |
| Fri, 9/25 | no data from the station | |
| Thu, 9/24 | no data from the station | |
| Wed, 9/23 | no data from the station | |
| Tue, 9/22 | no data from the station | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | too few readings | |
| Tue, 9/8 | 11.3 | provisional |
| Mon, 9/7 | 8.8 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | too few readings | too few readings | year before: same days · 6 days without data from the station |
| September 2026 | too few readings | 10.7 | measured in 28 % of hours · provisional · 21 days without data from the station |
| August 2026 | 12.9 | too few readings | measured in 99 % of hours · provisional |
| July 2026 | 14.2 | 12.9 | measured in 94 % of hours · provisional · 1 day without data from the station |
| June 2026 | 13.7 | 8.5 | measured in 87 % of hours · provisional · 3 days without data from the station |
| May 2026 | 7.1 | 3.9 | measured in 100 % of hours · provisional |
| April 2026 | 4.5 | 3.7 | measured in 99 % of hours · provisional |
| March 2026 | 4.8 | 2.8 | measured in 100 % of hours · provisional |
| February 2026 | 4 | too few readings | measured in 89 % of hours · provisional |
| January 2026 | 4.1 | measured in 96 % of hours · provisional | |
| December 2025 | 7.5 | measured in 94 % of hours · verified · 1 day without data from the station | |
| November 2025 | 6.2 | measured in 99 % of hours · verified |
NO₂ by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 |
|---|---|---|
| Hours above 200 µg/m³ (allowed 18) | 0² | 0² |
| Hours above 400 µg/m³, three hours in a row (alert threshold) | 0 | 0 |
| Annual average, µg/m³ (EU limit 40) | too few | too few |
| Highest daily average, µg/m³ | 29June 29 | 32August 16 |
| Highest hourly value, µg/m³ | 192April 7 | 184June 30 |
| Hours measured | 86 % | 83 % |
| Days without any reading from the station | 31 | 11 |
* 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.
There is no allowed number for the warning and alert thresholds: every such hour or day is in red.
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 50 µg/m³, 18 days allowed. In 2026 there were 0 such days.
- WHO 2021: daily 25 µg/m³, at most three to four days a year. In 2026 there were 4 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.
Ozone O₃
no measurement
Now
too few readings
Last 24 hours
measured in 0 % of hours
too few readings
Last 7 days
measured in 0 % of hours
too few readings
Last 30 days
measured in 9 % of hours · provisional
too few readings
Last 12 months
measured in 73 % of hours · provisional
Days in 2026: O₃, 8-hour average above 120 µg/m³
1 day above the limit. 31 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Days above the limit with values (1)
- Aug 12 123
Values in µg/m³, limit 120 µg/m³.
Months of 2026
| Month | Days above 120 | Highest 8 h | No readings |
|---|---|---|---|
| January | 0 | 77 | 0 |
| February | 0 | 81 | 0 |
| March | 0 | 84 | 0 |
| April | 0 | 93 | 0 |
| May | 0 | 78 | 0 |
| June | 0 | 94 | 3 |
| July | 0 | 101 | 1 |
| August | 1 above the number allowed | 123 | 0 |
| September | 0 | 97 | 21 |
| October up to yesterday | 6 |
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.
There are no readings for this period.
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | no data from the station | |
| Mon, 10/5 | no data from the station | |
| Sun, 10/4 | no data from the station | |
| Sat, 10/3 | no data from the station | |
| Fri, 10/2 | no data from the station | |
| Thu, 10/1 | no data from the station | |
| Wed, 9/30 | no data from the station | |
| Tue, 9/29 | no data from the station | |
| Mon, 9/28 | no data from the station | |
| Sun, 9/27 | no data from the station | |
| Sat, 9/26 | no data from the station | |
| Fri, 9/25 | no data from the station | |
| Thu, 9/24 | no data from the station | |
| Wed, 9/23 | no data from the station | |
| Tue, 9/22 | no data from the station | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | too few readings | |
| Tue, 9/8 | 75.9 | provisional |
| Mon, 9/7 | 66.9 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | too few readings | 6 days without data from the station | |
| September 2026 | too few readings | measured in 28 % of hours · provisional · 21 days without data from the station | |
| August 2026 | 60.8 | measured in 98 % of hours · provisional | |
| July 2026 | 36.3 | measured in 94 % of hours · provisional · 1 day without data from the station | |
| June 2026 | 37.8 | 43.5 | measured in 87 % of hours · provisional · 3 days without data from the station |
| May 2026 | 48.1 | 49.3 | measured in 100 % of hours · provisional |
| April 2026 | 54.2 | 53.9 | measured in 100 % of hours · provisional |
| March 2026 | 43.8 | 52.7 | measured in 100 % of hours · provisional |
| February 2026 | 40.3 | 38 | measured in 90 % of hours · provisional |
| January 2026 | 40.3 | measured in 96 % of hours · provisional | |
| December 2025 | 20.1 | measured in 83 % of hours · verified · 1 day without data from the station | |
| November 2025 | too few readings |
O₃ by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 |
|---|---|---|
| Days with 8-hour average above 120 µg/m³ (target value 25) | ≥ 1² | 0² |
| Annual average, µg/m³ | too few | too few |
| Highest 8-hour average, µg/m³ | 123August 12 | 103April 11 |
| Hours measured | 86 % | 46 % |
| Days without any reading from the station | 31 | 11 |
* 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.
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 worst days of 2026
| Day | Highest 8 h | Times the limit |
|---|---|---|
| Aug 12, 2026provisional | 123 | 1.0 × |
Daily average in µg/m³, daily limit 120 µg/m³. Days with the same unverified value over many hours are not on this list.
Sulphur dioxide SO₂
no measurement
Now
too few readings
Last 24 hours
measured in 0 % of hours
too few readings
Last 7 days
measured in 0 % of hours
too few readings
Last 30 days
measured in 9 % of hours · provisional
too few readings
Last 12 months
measured in 89 % of hours · 1 month with too few readings · provisional
Days in 2026: SO₂, daily average above 125 µg/m³
No measured day above the limit. 31 days without any reading from the station.
- above the limit
- below the limit
- too few readings for the day
- no data from the station
Months of 2026
| Month | Days above 125 | Hours above 350 | Highest day | No readings |
|---|---|---|---|---|
| January | 0 | 0 | 25 | 0 |
| February | 0 | 0 | 8 | 0 |
| March | 0 | 0 | 7 | 0 |
| April | 0 | 0 | 5 | 0 |
| May | 0 | 0 | 10 | 0 |
| June | 0 | 0 | 8 | 3 |
| July | 0 | 0 | 6 | 1 |
| August | 0 | 0 | 8 | 0 |
| September | 0 | 0 | 5 | 21 |
| October up to yesterday | 6 |
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.
There are no readings for this period.
Values as a table
| Day | µg/m³ | Note |
|---|---|---|
| Tue, 10/6 | no data from the station | |
| Mon, 10/5 | no data from the station | |
| Sun, 10/4 | no data from the station | |
| Sat, 10/3 | no data from the station | |
| Fri, 10/2 | no data from the station | |
| Thu, 10/1 | no data from the station | |
| Wed, 9/30 | no data from the station | |
| Tue, 9/29 | no data from the station | |
| Mon, 9/28 | no data from the station | |
| Sun, 9/27 | no data from the station | |
| Sat, 9/26 | no data from the station | |
| Fri, 9/25 | no data from the station | |
| Thu, 9/24 | no data from the station | |
| Wed, 9/23 | no data from the station | |
| Tue, 9/22 | no data from the station | |
| Mon, 9/21 | no data from the station | |
| Sun, 9/20 | no data from the station | |
| Sat, 9/19 | no data from the station | |
| Fri, 9/18 | no data from the station | |
| Thu, 9/17 | no data from the station | |
| Wed, 9/16 | no data from the station | |
| Tue, 9/15 | no data from the station | |
| Mon, 9/14 | no data from the station | |
| Sun, 9/13 | no data from the station | |
| Sat, 9/12 | no data from the station | |
| Fri, 9/11 | no data from the station | |
| Thu, 9/10 | no data from the station | |
| Wed, 9/9 | too few readings | |
| Tue, 9/8 | 3.8 | provisional |
| Mon, 9/7 | 4 | provisional |
Values as a table
| Month | µg/m³ | a year earlier | Note |
|---|---|---|---|
| October 2026 so far | too few readings | too few readings | year before: same days · 6 days without data from the station |
| September 2026 | too few readings | 2.6 | measured in 28 % of hours · provisional · 21 days without data from the station |
| August 2026 | 2.9 | too few readings | measured in 100 % of hours · provisional |
| July 2026 | 3.5 | 3 | measured in 94 % of hours · provisional · 1 day without data from the station |
| June 2026 | 4.4 | 2.8 | measured in 87 % of hours · provisional · 3 days without data from the station |
| May 2026 | 5.4 | 3.6 | measured in 100 % of hours · provisional |
| April 2026 | 3.7 | 3 | measured in 100 % of hours · provisional |
| March 2026 | 3.7 | 3.5 | measured in 100 % of hours · provisional |
| February 2026 | 5.5 | too few readings | measured in 90 % of hours · provisional |
| January 2026 | 5.5 | measured in 96 % of hours · provisional | |
| December 2025 | 5.1 | measured in 94 % of hours · verified · 1 day without data from the station | |
| November 2025 | 1.7 | measured in 99 % of hours · verified |
SO₂ by year
Yardstick: EU limits (Directive 2008/50/EC)
| Measure | 2026* | 2025 |
|---|---|---|
| Days above 125 µg/m³ (allowed 3) | 0² | 0² |
| Hours above 350 µg/m³ (allowed 24) | 0² | 0² |
| Hours above 500 µg/m³, three hours in a row (alert threshold) | 0 | 0 |
| Annual average, µg/m³ | too few | too few |
| Highest daily average, µg/m³ | 25January 18 | 23December 23 |
| Highest hourly value, µg/m³ | 127January 18 | 89March 21 |
| Hours measured | 87 % | 83 % |
| Days without any reading from the station | 31 | 11 |
* 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.
There is no allowed number for the warning and alert thresholds: every such hour or day is in red.
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 50 µg/m³, 18 days allowed. In 2026 there were 0 such days.
- WHO 2021: daily 40 µg/m³, at most three to four days a year. In 2026 there were 0 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.
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: 39
7 outages, 944 hours in total in the last 12 months.
Timeline of outages from October 7, 2025 to today
| From | To | Duration |
|---|---|---|
| Sep 9, 2026 15:00 | still ongoing | 28 days |
| Jul 20, 2026 15:00 | Jul 22, 2026 10:00 | 43 hours |
| Jun 5, 2026 20:00 | Jun 9, 2026 11:00 | 4 days |
| Feb 19, 2026 03:00 | Feb 20, 2026 16:00 | 37 hours |
| Feb 17, 2026 05:00 | Feb 18, 2026 10:00 | 29 hours |
| Jan 11, 2026 04:00 | Jan 12, 2026 10:00 | 30 hours |
| Dec 9, 2025 09:00 | Dec 11, 2025 02:00 | 41 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 Environmental Protection Agency of Montenegro. 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.
samoEKO is a brand of samoLabs, Juelich.