A mass fish die-off has occurred in the Sava River along the stretch extending from Dubrovčak Lijevi near Ivanić Grad to Zagreb. This phenomenon has triggered urgent responses from relevant institutions, and the State Inspectorate has immediately launched an inspection to determine the causes of the incident.
The Water Law Inspectorate of the State Inspectorate has taken water samples from the aforementioned area on site. The primary aim of the water analysis is to identify any pollution that could be the cause of the mass mortality. Alongside water samples, inspectors have also collected fish samples for laboratory testing. This analysis aims to rule out the possibility that the die-off is the result of the spread of infectious diseases among fish populations.
The inspection is ongoing, and veterinary inspectors are also acting on the specified section of the river. Hina reported this information on Friday, emphasising that procedures are being carried out systematically to ascertain the exact causes of the event.
Zagrebački Holding, via the company Water Supply and Sewerage (ViO), has strongly denied claims that an emergency event occurred at the operation of the Central Wastewater Treatment Plant of Zagreb (CUPOVZ). The company stated that the system is functional, stable, and that purification processes are proceeding continuously and without interruption. No difficulties in the operation of the facility were recorded, and all output parameters for the quality of treated wastewater are in compliance with current legal regulations.
Meanwhile, ViO clarified that it is not responsible for monitoring the biological, chemical, and physical indicators of the quality of the Sava River. Furthermore, the company is not responsible for interpreting the impact of climatic conditions on the flora and fauna in the river. Monitoring of water quality in the Sava is conducted by Croatian Waters, which are the only authorised institutions for this type of monitoring.
