Analysis of the impact of drought on water quality in watercourses

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of the impact of drought on water quality in watercourses

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Analysis of the impact of drought on water quality in watercourses

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/SS02030040" target="_blank" >SS02030040: Predikce, hodnocení a výzkum citlivosti vybraných systémů, vlivu sucha a změny klimatu v Česku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

5

Strana od-do

16-20

Název nakladatele

Mezinárodní komise pro ochranu Labe (MKOL)

Místo vydání

Magdeburg

Místo konání akce

Magdeburg

Datum konání akce

8. 10. 2025

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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