KAZALCI OKOLJA

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Neutral

Water consumption in Slovenia represents a relatively small proportion of the annual gross water outflow from the country. In 2019, the annual WEI+ index was around 3%, and same 3% compared to the periodic average of water availability. The Long-term Annual Average Water Exploitation Index shows a slight decrease, but the trend is not statistically significant.

Neutral

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.

Neutral

The above-average years 2013 and 2014 were followed by average and below-average annual runoff. In the period 1961 - 2019, the driest years were 2011, 2007, 2003, 1983, and 1971. In the year 2019 annual runoff was average. The long-term downward trend of river runoff from the territory of Slovenian currently persists

Neutral

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 1998–2020, the average annual levels of nitrates in water bodies in the Sava valley, Ljubljansko barje, Savinja, Drava and Mura basins show a statistically significant downward trend. In other water bodies, nitrate levels are not statistically significant.

Neutral

In general, the levels of pesticides in groundwater are decreasing. In Slovenian lowlands (the Drava and Mura river basins), which are characterised by intensive agricultural activity, certain pesticides, phytopharmaceuticals in particular, still exceed quality standards. Individual point sources of pollution can be a result of unskilled use of plant protection products.

Neutral

In Slovenia, nutrient overloading is still the basic problem concerning lakes and reservoirs, and from 2006 to 2019, no improvement is observed. In the assessment period 2016–2019, only 4 out of 11 lake water bodies were determined to be in good or very good trophic status. Overloading of lakes with phosphorus is usually a result of inadequate wastewater drainage and intensive agriculture in the watershed area.

Neutral

In 2019, drinking water monitoring was carried out in supply zones (water supply systems) that supply 50 or more persons (93% of the population). Large and medium supply zones that supply more than 1,000 (85%) of the population, generally have adequate drinking water quality. The smallest supply zones that supply 50-500 people are the least regulated, in comparison to larger due to the fecal contamination, as some with surface and karst water resources.

Good

Inland bathing water quality in Slovenia is good and comparable with bathing water quality in other European countries.

Neutral

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.

Neutral

Groundwater is most polluted in aquifers with intergranular porosity in the northeastern part of Slovenia.


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