In Slovenia, between 2012 and 2022, 1 to 3 waterborne outbreaks were reported annually, except in the years 2015 and 2017–2020, when no outbreaks were reported. In individual outbreaks, between 3 and 355 cases were reported. In about half of these outbreaks, the causative agent was not identified. Confirmed causative agents included Cryptosporidium parvum, Escherichia coli, rotavirus, norovirus, Bacillus cereus, Campylobacter jejuni, Salmonella Typhimurium, and Francisella tularensis.

The average concentrations of dioxins and dl-PCBs in fish and seafood are the highest among all foods, followed by other animal-derived foods. Long-term average exposure of the Slovenian population to dioxins due to fish consumption does not exceed the Tolerable Weekly Intake (TWI), except for infants and toddlers, indicating a higher health risk for the most vulnerable groups. When considering only fish consumers, exposure to dioxins and PCBs exceeds the TWI in all age groups.

In Slovenia, in 2022, drinking water monitoring (quality monitoring) was conducted for 93.8% of the population at the point of use (user's tap) across drinking water supply systems or within 863 supply zones that served 50 or more inhabitants. This also included 26 smaller supply areas that provided water to public facilities and facilities involved in the production and distribution of foodstuffs.

The data for Slovenia shows that in the past five years, one infant died due to respiratory diseases, specifically in 2021, representing 11.1% of all infant deaths in that year. Research has indicated that air pollution is associated with higher infant mortality rates due to respiratory diseases. However, this relationship is complex, as it is also influenced by other factors such as the presence of allergens, exposure to cigarette smoke, diet, and lifestyle.

Values ​​of parameters used for monitoring the organic loading of rivers have greatly reduced since 1996, however ammonium levels remain much higher than natural background. The observed reduction in organic loading corresponds to an increase in the share of population whose wastewater is treated at wastewater treatment plants. The nutrient loading varies considerably among rivers of the Adriatic and the Danube river basins.