KAZALCI OKOLJA

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Neutral

In the period 1960-2019, the mean sea level along the Slovenian coast increased by 11 cm. On average, this means by 1.8 mm/year and in the last 20 years by 4,4 mm/year. It is estimated that the increase of the middle sea level is affected by global see level increase, and in the last period also by extreme weather conditions in the region. In the last twenty years, at the Slovenian and in the Adriatic coast sea level has been rising faster than the European and global trends.

Neutral

The concentration of dissolved oxygen is important for the life of all aerobic marine organisms because they consume oxygen during respiration. During periods of stratified water column, especially in late summer or early autumn, episodes of hypoxia and anoxia may occur. Long-term measurements of dissolved oxygen concentrations in the bottom layer of the sampling station in the central part of the Gulf of Trieste show significant fluctuations on both annual and long-term scales.

Good

Phytoplankton biomass, expressed as chlorophyll a concentration, reflects nutrient loading in the marine environment. Chlorophyll a concentrations shows a trend towards improvement in the status of the Slovenian sea, as the ecological status has been assessed as high or good over the last period.

Good

The quality of bathing water along the Slovenian coast is excellent, which ranks Slovenia at the top among the EU countries.

Neutral

Based on monitoring data for the period 2006–2008, five Slovenian marine water bodies were classified as being in a poor chemical state. This state was determined by values that exceeded the environmental standard of the quality of tributyltin compounds, which have been monitored at the level of the European Union since 2007. Three marine water bodies have been determined to be in a good or very good ecological state.

Good

Nutrients, especially nitrogen and phosphorus compounds, are important for the growth of algae and higher plants, but in high concentrations can cause undesirable changes in aquatic organisms and seawater quality. Long-term measurements of selected nutrients in the Slovenian sea show that their concentrations have decreased significantly. Therefore, the ecological status of the Slovenian Sea is assessed as good to very good based on nutrients in recent years.

Good

The quality of water required to support life and growth of marine bivalves and gastropods in the period 2003–2009 was in compliance with statutory requirements.


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