Environmental indicators in Slovenia

Environmental indicators are based on graphs, maps and assessments and as such present environmental trends in Slovenia. The indicators represent one of the four pillars of our environmental reporting, and are prepared in accordance with the Environmental Protection Act. The Environmental Indicators in Slovenia website enables users to browse among 180 indicators. They are based on numerical data and they indicate the state, characteristics and trends of environmental development in Slovenia. They are prepared using a systematic approach based on data and monitoring, as shown in the information pyramid.

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In the period 2002-2017, the highest exposure to ozone concentrations were detected in the Primorska region in summer where air quality measuring stations in Koper and Nova Gorica detected highest ozone concentrations in ambient air. There are some differences from year to year in a level of ozone exposure due to meteorological conditions in the warm half of the year and other regional characteristics.


In Slovenia, forests have been growing in terms of timber reserves and growth for decades. They have increased by more than 140% over the last 70 years. In addition to natural conditions, harvesting depends on socioeconomic factors, and recently on the occurrence of natural disasters (windbreaks, icebreakers) and bark beetles, and today it amounts to about 50% of the increase. By 2014, the felling accounted for about 50% of the increment, after which it increased substantially and presents 60 to 75% of the total increment of conifers and deciduous trees.


In the past centuries, forest area has been increasing constantly po letu 2010 pa se je povečevanje umirilo in ostaja zadnja leta razmeroma stabilno. Since 1875, when forests covered only 36% of the Slovenian territory, forest cover has increased to 58.5%. In terms of forest share, Slovenia ranks third among EU-28 countries, behind Sweden and Finland.


Slovenian Environmental Agency (ARSO) is responsible for providing monetary compesation for damage caused by protected animal species. In 2018 there were 738 reported damage cases caused by protected animal species, out of which, we paid compesation for 635. A total of 301.424,80 EUR was paid in compesation, for damage caused by 23 different protected animal species. Most damage cases happened between the months of July and October, with most of the damage caused by large carnivores and most of the damage being on small livestock.


Slovenian groundwater bodies most polluted with nitrates are those with intergranular (alluvium) aquifers, particularly in north-eastern Slovenia. Groundwater in karst and fractured aquifers is less burdened with nitrates due to geographical conditions, low population density and less agricultural land. In the period 1998–2018, the average annual levels of nitrates in water bodies in the Savinja, Drava and Mura basins show a statistically significant downward trend.


In Slovenia, the majority of energy consumption in agriculture is gas oil used as a propellant for agricultural machinery (56.2%), followed by energy for the production of mineral nitrogen fertilizers (36.4%) and electric energy (4.4%). Compared to the average of 28 European countries, in 2016 Slovenia has 9.5% more direct energy consumption per hectare of utilized agricultural area and 13.5% less indirect energy use in agriculture.