4.6 Article

The Identification of Risks for Drinking Water Intakes in Urbanized Area: The Case Study of Torun (Central Poland)

Journal

WATER
Volume 13, Issue 23, Pages -

Publisher

MDPI
DOI: 10.3390/w13233378

Keywords

drinking water; floods; drought; risk analysis; climate change

Funding

  1. Strategy of excellence-research university program - Ministry of Science and Higher Education-Project: Urban Soil Environment

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This article discusses the impact of natural hazards caused by climate change on water safety, using a medium-sized town in central Poland as a case study. The findings show that extreme circumstances such as droughts and floods have affected water supply systems, with a significant increase in days without precipitation and average annual air temperature observed during the analyzed period.
This article discusses the problem of natural hazards connected with climatic changes and their influence on water safety. A medium-sized town in central Poland which is supplied with consumption water from both underground water intakes and surface water resources was selected as a case study. Natural hazards, such as droughts or floods, were identified and the risk of the occurrence of natural hazards concerning water supply systems assessed. The findings of the archived data analysis for the period 1971-2020 helped to identify extreme circumstances, the occurrence of which had an impact on secure water supplies in terms of quantity. Moreover, the results obtained indicate that the greatest influence had all the situations connected with the Drweca low water discharge, which in the long term could lead to temporary water shortages. In the analyzed period, there was a significant increase in the number of days without precipitation, together with a statistically significant increase in the average annual air temperature. Meteorological hazards related to days without precipitation far outweighed the occurrence of days with intense precipitation. The analysis of water table fluctuations observed at the Jedwabno infiltration intake showed a high sensitivity of the aquifer to atmospheric conditions.

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