In 2023, Slovenia recorded a decrease in the number and total area of functionally derelict areas (FDAs): 1070 FDAs were registered with a total area of 3225.44 ha. This brings the situation closer to that of 2017, with a decrease of 62 in the number of FDAs and 469.83 ha in total area, compared to 2020.

Systematic research on soil pollution shows that soils in Slovenia, with some exceptions, are not heavily polluted. In 42% of top soil samples taken in the period from 1999 to 2019, no exceedances of the limit values of dangerous substances into the soil were detected. In 56% of the samples the limit values of inorganic pollutants were exceeded and in 5% the limit values of organic pollutants. The most polluted areas with inorganic pollutants were Jesenice, Idrija, the Celje Basin and the Upper Mežica Valley.

As of 2022, the Potentially Contaminated Sites (PCS) inventory in Slovenia includes 671 sites that are a potential source of pollution due to past or present activities. With the establishment of the first database, Slovenia has taken the first of six steps toward systematic management and monitoring of contaminated sites. An analysis of the degree of environmental sensitivity and threat to human health due to potential contamination revealed that priority treatment is urgent for 35 sites and very urgent for 196 sites.

Frequency of groundwater drought is increasing in recent decades in alluvial aquifers. 8 out of 10 years with highest intensity of groundwater drought in period 1981-2022 occurred after year 2000. Groundwater droughts with higher intensity is characteristic for winter while milder groundwater droughts mostly occur at the end of the summer and at the beginning of autumn. Groundwater drought intensity is also increasing seasonally with time between June and September when groundwater use is pronounced.