Energy efficiency in transport is improving, but too slowly, as it improved by only 11% in the period 2000-2019. Most of the energy in traffic is consumed in passenger cars, where efficiency has deteriorated.

In households, energy efficiency improved by 33% over the same period, mainly due to an improvement in energy efficiency for heating. Most energy in households is used to heat homes.

In recent years, the amount of wastewater treated by secondary or tertiary treatment processes increased, while primary treatment processes have closed. The amount of wastewater treated through secondary treatment processes increased by 150 % since 2000 or from 30 million m3 (in 2000) to almoust 45 million m3 (in 2019). There were almost no tertiary wastewater treatment processes in Slovenia in 2000, and in 2019, 72% of wastewater or 113 million m3 of wastewater was treated by tertiary process.

The incidence of malignant mesothelioma is (still) not decreasing in Slovenia or elsewhere in the world. Given the long latent period of the disease, it is likely to increase in Slovenia, especially among the elderly. Amon youngsters we expect to decline. We have not yet removed all asbestos products from the work and living environment, so the risk factor for this disease still exists, not only for workers who work professionally with asbestos products and waste, but also for others.

In Slovenia, 98.7% of surface water bodies are in good chemical condition. The two water bodies are in poor chemical condition due to the excess of metals. In general, Slovenian surface waters are not loaded with priority substances in the water, but they are loaded with too high concentrations of mercury and brominated diphenylethers in fish. These are ubiquitous pollutants that are excessively present in biota both in Slovenia and in Europe.

Water protection areas cover 3532 km² or 17,4% of Slovenia’s land surface in 2021. This is a slight increase, compared to 2017, but the goal of protecting the areas of all water sources for public water supply with a regulation on national level, has not been reached yet.