Current Issue

Caffeine and urea as indicators of anthropogenic load on bathing ponds

RNDr. Dana Baudišová, Ph.D., Ing. Lenka Mayerová, Ph.D., Mgr. Petr Pumann, Ing. Hana Kujalová, Ph.D. and Ing. Martin Ferenčík – 4/2025

Bathing ponds represent a specific ecosystem where living organisms play a dominant role in maintaining the quality of water in the water body. At the same time, they are very frequently visited, so the biggest source of pollution is from bathers. The aim of this publication is to present and evaluate possible chemical indicators of anthropogenic load – caffeine and urea at four sites (two of which during the entire bath-ing season) in the summer of 2023.

Water quality and transport of pollutants in downstream part of the Czech Elbe

RNDr. Josef Fuksa, CSc. – 4/2025

The paper presents an analysis of water quality data from the downstream part of the Czech Elbe and the Vltava for the period 1961–2020 and compares it with archive data (reference period 1880–1913). The transport of nitrogen and total phosphorus within the catchment was compared with the output from wastewater treatment plants (WWTPs).

Hydrotechnical research of flap gates

Ing. Martin Králík, Ph.D. and Ing. Ondřej Němčanský – 4/2025

This article deals with the hydraulic analysis of a flap gate in Doksany and Strakonice based on the evaluation of experimental measurements performed on a physical and mathematic model at the Water Management Experimental Centre, Faculty of Civil Engineering, CTU in Prague.

Where does a settlement end? Defining urban areas for more than just runoff analyses

Ing. Luděk Strouhal, Ph.D. and Ing. Petr Kavka, Ph.D. – 4/2025

The article presents a methodology for the spatial delineation of significant urban areas in the Czech Republic, primarily for the purposes of hydrological analyses and flash flood risk assessment. First, the definition of urban areas was refined in relation to existing terminology, followed by the development of a comprehensive procedure for creating layers of urban and natural features using the planimetric layers of the Fundamental Base of Geographic Data of the Czech Republic (ZABAGED®) supported by additional open data sources.

Interview with Mgr. Petr Birklen, Director General of the Povodí Odry, state enterprise

Ing. Josef Nistler – 4/2025

At the beginning of March this year, Petr Birklen became Director General of the state enterprise Povodí Odry. How long was the journey to this position and what does it mean to him? How did he cope with the aftermath of the 2024 floods, and how does he manage to fight against misinformation? And will the long-discussed Nové Heřminovy dam finally be built? Mgr. Petr Birklen answers our questions.

Jáchymov II.: at the right time in the right place

Mgr. Zuzana Řehořová – 4/2025

The town of Jáchymov in the Ore Mountains foothills is part of the Karlovy Vary Region and member of the West Bohemian spa family. However, Jáchymov offers a very spe-cific treatment; thanks to the high concentration of radon in the local natural mineral water, the world’s first radon spa was established here and is still operating successfully today.