The rate of defoliation and forest decline in Slovenia was relatively stable until 2020, with a slightly negative trend. After 2020, a deterioration of tree defoliation was observed.

The reporting score under the Core data flow of the European Environment Agency decreased for Slovenia in recent years. In 2019, we reached 90%, which is also the EEA target for the average of all countries. In the following years, we reached around 83%. In 2021, 6 EEA countries achieved 100% reporting, 9 countries achieved more than 90%. The 11 most important data flows, supporting major environmental decisions, were evaluated.

Air pollution is the greatest environmental risk to health and a major cause of disease and premature deaths in Europe. Pollution due to PM_2.5 causes respiratory, cardiovascular, neurological and metabolic diseases. Since 2005, the number of premature deaths due to PM_2.5 pollution has been decreasing in Slovenia and in EU countries. In 2019, there were 1,409 premature deaths due to PM_2.5 pollution in Slovenia, and 307,000 in the European Union.

The Green Key is an international label for the environment, which is awarded to tourist accommodations and catering establishments that strive for environmental responsibility and sustainable behavior in the tourism industry. In Slovenia, 143 siteswere certified in 2022. In 2021, 3,165 sites were certified in the European Union, and 3,165 around the world.

Concentrations of total arsenic in blood, urine and breast milk in Slovenia are low and comparable to concentrations worldwide.

Long-term surveillance will be possible once regular national human biomonitoring is established.