Analysis of the impact of drought on water quality in watercourses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020699%3A_____%2F25%3AN0000229" target="_blank" >RIV/00020699:_____/25:N0000229 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Analysis of the impact of drought on water quality in watercourses
Original language description
Significant changes in long-term hydrological values have led to an increase in the share of treated wastewater in the flow of watercourses [3]. However, the long-term implications of these changes on water quality remain uncertain due to the numerous technical measures implemented in the past to mitigate pollution discharges. As the flows decrease, there is a significant increase in total conductivity, chloride, total phosphorus, and water temperature. Consequently, elevated values of these parameters are observed in "dry" years, defined as years with the highest number of days exhibiting flows below Q355.A comparison of the water quality in the monitoring profiles upstream and downstream of the WWTP discharge reveals the greatest increases in chloride, total and phosphate phosphorus, and ammonium nitrogen concentrations. A notable increase in water temperature and pH downstream of the WWTP is observed during the warmer months, accompanied by a more rapid decomposition of organic matter. This results in smaller differences for ammonium nitrogen, and conversely, larger differences in its concentrations during the colder months. However, phosphorus and chloride concentrations exhibit a marked increase downstream of the WWTP throughout the year.
Czech name
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Czech description
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Project
<a href="/en/project/SS02030040" target="_blank" >SS02030040: Prediction, Evaluation and Research for Understanding National sensitivity and impacts of drought and climate change for Czechia</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Magdeburský seminář o ochraně vod 2025 - Hospodaření s vodou v povodí Labe včera, dnes a zítra
ISBN
978-3-910400-04-7
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
16-20
Publisher name
Mezinárodní komise pro ochranu Labe (MKOL)
Place of publication
Magdeburg
Event location
Magdeburg
Event date
Oct 8, 2025
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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