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[ZR08] Concentrations of particulate matter in ambient air
State

Key message
Neutral

Air pollution with PM10 was the lowest in 2021 since we have been carrying out measurements. For the first time, at no monitoring site did the sum of exceeding the daily limit value for PM10 (50 µg/m3) exceed the number of 35, which is allowed for the whole year. Even the annual limit value for PM10 in 2021 was not exceeded at any monitoring site. Despite the fact that in 2021 the permitted number of exceedances or the annual limit value for PM10 particles was not exceeded at any monitoring site, high levels of PM10 are still measured, especially during the heating season in adverse weather conditions. Less polluted air with particles is the result of favorable meteorological conditions that prevailed in the winter period of the year. These allowes the dilution of emissions from small combustion plants and traffic, which are the main sources of PM10 particles emissions in Slovenia. The annual limit value of 20 µg/m3 for PM2,5  particles in 2021 was not exceeded at any of the five monitoring sites where we perform measurements. The average exposure KPI for PM2,5 in 2021 was 14 µg/m3. The obligation regarding the level of exposure for 2021 amounts to 20 µg/m3.

Charts

Figure ZR08-1: Number of days with exceeded 24-hour limit concentration of 50 µg PM10/m3 (may not be exceeded more than 35 times per calendar year)
Sources:

National automatic measurement air quality network database, Environmental Agency of the Republic of Slovenia, database of complementary automated measurement networks (TE Šoštanj, TE-TO Ljubljana, EIS Anhovo, MO Ljubljana, MO Celje, MO Maribor, Občina Miklavž na Dravskem polju, Občina Ruše in MO Ptuj)

Show data
Urban-traffic type[] Rural/Agricultural type[number of days] Rural/Industrial type[number of days] Urban background[number of days] Suburban background[number of days] Rural type/natural background[number of days] permitted exceedance[number of days]
2005 111 40 68 65 5 35
2006 102 35.67 48 43 5 35
2007 95 27.67 17 38 35.33 0 35
2008 88 33.50 20 29.25 31 0 35
2009 67.67 25 15 24.60 24.33 5 35
2010 63 40.50 15.67 37.50 28.67 5 35
2011 77.67 60 36.67 48.44 34.67 3 35
2012 67.67 34.50 21.67 25.30 25.33 1 35
2013 52.67 20.50 15 23.73 14 0 35
2014 39.33 17.50 7.33 19.73 12.50 0 35
2015 63 23.50 7.67 33.36 14.75 0 35
2016 53.33 29.33 9.33 29.45 12.50 0 35
2017 41.50 33.33 7.33 29.17 20.50 3 35
2018 36 28 3.67 19 11.75 2 35
2019 26 19 4 11 5 2 35
2020 26 16 8 14 7 2 35
2021 19 12 6 8 3 1 35
Figure ZR08-2: Average annual concentration of PM10 (annual limit value is 40 µg/m3)
Sources:

National automatic measurement air quality network database, Slovenian Environment Agency, database of complementary automated measurement networks, 2020 (Thermal power plant Šoštanj, TE-TO Thermal power plant Ljubljana, Environment Information System Anhovo, Municipality of Ljubljana, Municipality of Celje, Municipality of Maribor, Municipality of Miklavž in the Drava field, Municipality of Ruše, Municipality of Ptuj and Municipality of Grosuplje), 2021

Show data
Urban-traffic type[µg/m3] Rural/Agricultural type[µg/m3] Rural/Industrial type[µg/m3] Rural type/natural background[µg/m3] Urban background[µg/m3] Suburban background[µg/m3] annual limit value[µg/m3] average annual concentration - total[µg/m3]
2005 46.67 32.50 16 39.75 35 40 34.15
2006 44.50 34 16 32.75 31.33 40 31.72
2007 40.50 31.50 23.50 15 31.50 27.33 40 28.22
2008 40.67 29.50 24 16 29 26.67 40 27.64
2009 38 30 21.50 16 27.40 26.33 40 26.54
2010 37 29.50 21.67 14 29.13 26.33 40 26.27
2011 38.33 33.50 26 17 29.89 26.67 40 28.56
2012 35.67 28.50 23.33 15 25.60 24.67 40 25.46
2013 33.33 25 20 13 23.91 20.50 40 22.62
2014 30.84 22.03 13.33 11 22.35 19.89 40 19.91
2015 33.33 25 21 13 26.36 21.50 40 23.37
2016 32 23.67 18.67 11 23.64 21 40 21.66
2017 29.50 26.33 19.33 12 24.25 22.50 40 22.32
2018 29 25.33 18 14 22.64 21 40 21.83
2019 26 23 17 11 20 18 40 19.23
2020 25 20 19 10 20 18 40 18.54
2021 24 20 17 9 19 16 40 17.58
Figure ZR08-3: Average annual concentration of PM2,5 (annual limit value is 25 µg/m3)
Sources:

National automatic measurement air quality network database, Slovenian Environment Agency, 2020

Show data
Urban background[µg/m3] Urban-traffic type[µg/m3] Rural background[µg/m3] annual limit value[µg/m3]
2005 28 28 15 25
2006 29 31 13 25
2007 25 27 10 25
2008 24 23 11 25
2009 19 22 12 25
2010 22 24 12 25
2011 24 26 14 25
2012 19.50 21 13 25
2013 20 22 11 25
2014 17.36 19.20 9.33 25
2015 21 21 10 25
2016 21 21 9 25
2017 19 20 10 25
2018 16.67 0 11 25
2019 14 0 8 25
2020 14.25 0 7 20
2021 13.75 0 7 20
Figure ZR08-4: Average exposure indicator (AEI) for PM2.5(a three-calendaryear running annual mean concentration averaged over last three calendar year - exposure concentration obligation that need to be met by 2015 is 20 µg/m3)
Sources:

National automatic measurement air quality network database (DKMZ), Slovenian Environment Agency, 2020

Show data
Slovenia[µg/m3] exposure concentration obligation[µg/m3]
2010 21
2011 22
2012 22
2013 21
2014 19 20
2015 20 20
2016 20 20
2017 20 20
2018 19 20
2019 17 20
2020 16 20
2021 14 20

Methodology

Date of data source summarization
Other sources and literature

 

  1. Uredba o kakovosti zunanjega zraka, Uradni list RS, 9/11, 8/15 in 66/18 ter 44/22-ZVO-2
  2. Pravilnik o ocenjevanju kakovosti zunanjega zraka. Uradni list RS, 55/11, 6/15 in 5/17 ter 44/22-ZVO-2
  3. Direktiva 2008/50/EC o kakovosti zunanjega zraka in čistejšem zraku za Evropo

Last modified
10.05.2023
Author(s)

Tanja Koleša, Slovenian Environment Agency