<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The study attempts to answer the following question: Does human impact contribute to changes recorded in the Ner river ice regime? In replying to this question, data on water consumption in Lodz (Łódź) (a city in central Poland) in 1951–2017 were used, as well as observations of ice cover and all ice phenomena for the same period. The ice regime and water temperature of the river have changed over the past 70 years. The changes result not only from changes caused by global warming but also from additional fluctuations in this temperature as determined by changes in the quantity and quality of wastewater discharged into the river from the Lodz city agglomeration. The frequency of ice phenomena in the river decreased, and their duration dropped by almost half. This tendency was compounded by a decrease in number of days with ice phenomena, which in turn was caused by a rapid increase in the amount of waste and thermally polluted waters supplied from Lodz. The river water temperature has now stopped increasing. The course of the river ice regime now resembles that of a natural watercourse again.</p>
</abstract>

The study attempts to answer the following question: Does human impact contribute to changes recorded in the Ner river ice regime? In replying to this question, data on water consumption in Lodz (Łódź) (a city in central Poland) in 1951–2017 were used, as well as observations of ice cover and all ice phenomena for the same period. The ice regime and water temperature of the river have changed over the past 70 years. The changes result not only from changes caused by global warming but also from additional fluctuations in this temperature as determined by changes in the quantity and quality of wastewater discharged into the river from the Lodz city agglomeration. The frequency of ice phenomena in the river decreased, and their duration dropped by almost half. This tendency was compounded by a decrease in number of days with ice phenomena, which in turn was caused by a rapid increase in the amount of waste and thermally polluted waters supplied from Lodz. The river water temperature has now stopped increasing. The course of the river ice regime now resembles that of a natural watercourse again.

<bold>The influence of treated wastewater</bold> from the Lodz city agglomeration on the ice regime and water temperature of the Ner river

Department of Hydrology and Water Management, Institute of Climatology and Hydrology, Faculty of Geographical Sciences

Miscellanea Geographica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

 from the Lodz city agglomeration on the ice regime and water temperature of the Ner river

The study attempts to answer the following question: Does human impact contribute to changes recorded in the Ner river ice regime? In replying to this...

The influence of treated wastewater from the Lodz city agglomeration on the ice regime and water temperature of the Ner river

Pubblicato online: 09 lug 2021

Pagine: 194 - 203

Ricevuto: 03 lug 2020

Accettato: 04 mag 2021

DOI: https://doi.org/10.2478/mgrsd-2020-0061

Parole chiave
Human impact, ice phenomena, river regime, river water temperature, Lodz (Łódź)

© 2021 Adam Bartnik et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The influence of treated wastewater from the Lodz city agglomeration on the ice regime and water temperature of the Ner river

Pubblicato online: 09 lug 2021

Pagine: 194 - 203

Ricevuto: 03 lug 2020

Accettato: 04 mag 2021

DOI: https://doi.org/10.2478/mgrsd-2020-0061

Parole chiaveHuman impact, ice phenomena, river regime, river water temperature, Lodz (Łódź)

© 2021 Adam Bartnik et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Parole chiave
Human impact, ice phenomena, river regime, river water temperature, Lodz (Łódź)