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You are here: Home / The European environment – state and outlook 2010 / Country assessments / Croatia / Freshwater - Drivers and pressures (Croatia)

Freshwater - Drivers and pressures (Croatia)

Topics: ,
SOER Common environmental theme from Croatia
Published: 26 Nov 2010 Modified: 08 Apr 2011


Figure 5. Estimated discharge of organic pollution in industrial wastewater (tonnes CODCr /year), 2004-2008

Data source
Figure 5. Estimated discharge of organic pollution in industrial wastewater (tonnes CODCr /year), 2004-2008
Fullscreen image Original link

Figure 6 Spatial distribution of urban wastewater treatment plants, 2008

Text related to figure 6 cro. Stupanj pročišćavanja = en. Treatment cro. Prethodni stupanj = en. Previous stage cro. I stupanj = en. I stage cro. II stupanj = en. II stage cro. III stupanj = en. III stage
Data source
Figure 6 Spatial distribution of urban wastewater treatment plants, 2008
Fullscreen image Original link

Figure 7. Non-point sources of pollution from agriculture (by total N)

Text related to figure 7: cro. Ukipni dušik = en. Total nitrogen cro. Polj. površina = en. Agricultural land cro. Obradiva površina = en. Arable land cro. Pašnjaci = en. Pastures cro. Slivovi Dunava i Drave = en. Danube and Drava river basin cro. Sliv Save = en. Sava River basin cro. Primorsko-Istarski slivovi = en. Primorje and Istria river basins cro. Dalmatinski slivovi = en. Dalmatia river basins

Data source
This figure has no data source. For further information contact  EEA enquiry service.

Figure 7. Non-point sources of pollution from agriculture (by total N)
Fullscreen image Original link

Data sources

Hrvatske vode
Data sources

Water use

The average annual quantity of water abstracted for the needs of the population and industry in the period 2004-2008 amounted to 530 million m3, and the largest quantities were used for public water supply (Table 3).

In 2006, the average population coverage rate for public water supply systems amounted to approx. 80% (91 % in the Adriatic sea basin district and 77 % in the Danube River basin district).


Table 3. Abstracted water by use (average for 2004–2008)


Quantity (million m3)

Public water supply


Process water (in-plant intake structures)


Water for irrigation


Mineral and thermal water


Source: Hrvatske vode (Croatian Waters) 

Wastewater – point sources

The quality of urban and industrial wastewater is monitored in accordance with the requirements of the Ordinances [3, 4], which transposed into the national legislation the majority of requirements of the UWWT Directive and E-PRTR Decision. According to estimates, the quantity of organic pollution in industrial wastewater (tonnes CODCr) was reduced in the period 2006-2008 (Figure 5), and the most significant decrease was recorded in the Danube River basin district.

In 2008, there were 101 operational urban wastewater treatment plants (Figure 6) with installed capacity of 3.48 million PE, treating 27% of wastewater from total population, i.e. 62 % of collected domestic wastewater. 15% of urban wastewater is treated at secondary treatment plants, 9% at pretreatment plants, 3% at primary treatment plants and 0.4% at tertiary treatment plants.

The connection rate of the population to public sewerage systems in agglomerations of more than 150,000 PE is the highest and amounts to 74 % (approximately 30% of total population lives in such agglomerations), and the lowest in so-called small agglomerations of 2,000 PE, amounting to approx. 7 % (there are 469 small agglomerations with approx. 13 % of total population).

Non-point sources of water pollution

Non-point pollution from agriculture is estimated on the basis of: land area, category of land use, calculation of fertilisers and soil assessment (Figure 7). The pressure was estimated based on indicators relating to regular agricultural activities, through consumption of mineral fertilisers and quantities of organic fertilisers from animal farms. The highest nitrogen loads from non-point sources of pollution are found in the Danube River basin district.



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