Metal contamination in sediments of dam reservoirs: A multi-facetted generic risk assessment.

Autor: Baran A; Department of Agricultural and Environmental Chemistry, Krakow, Poland. Electronic address: Agnieszka.Baran@urk.edu.pl., Tack FMG; Department of Green Chemistry and Technology, Ghent University, Gent, Belgium. Electronic address: Filip.Tack@UGent.be., Delemazure A; Department of Green Chemistry and Technology, Ghent University, Gent, Belgium. Electronic address: Antoine.Delemazure@ugent.be., Wieczorek J; Department of Agricultural and Environmental Chemistry, Krakow, Poland. Electronic address: Jerzy.Wieczorek@urk.edu.pl., Tarnawski M; University of Agriculture in Krakow, Department of Hydraulic Engineering and Geotechnics, Al. Mickiewicza 24/28, 30-059, Krakow, Poland. Electronic address: Marek.Tarnawski@urk.edu.pl., Birch G; Geocoastal Research Group, School of Geosciences, The University of Sydney, New South Wales, 2006, Australia. Electronic address: gavin.birch@sydney.edu.au.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2023 Jan; Vol. 310, pp. 136760. Date of Electronic Publication: 2022 Oct 12.
DOI: 10.1016/j.chemosphere.2022.136760
Abstrakt: The quality of bottom sediments is a key factor for many functions of dam reservoirs, which include water supply, flood control and recreation. The aim of the study was to combine different pollution indices in a critical generic risk assessment of metal contamination of bottom sediments. Both geochemical and ecological indices reflected that sediment contamination was dominated by Zn, Pb and Cd. The ecological risk indices suggested a high riks for all three metals, whereas human health risks were high for Pb and Cd. An occasional local contamination of sediments with Cr and Ni was revealed, although at levels not expected to cause concerns about potential ecological or health risk. Sediments from the Rybnik reservoir for Cu only revealed a high potential ecological risk. EF turned to be as being the most useful, whereas TRI (∑TRI) was the most important ecological index. All multi-element indices suggested similar trends, indicating that Zn, Pb and Cd taken altogether had the greatest impact on the level of sediment contamination and posed the greatest potential ecological and health risks to organisms. The use of sequential BCR extraction and ecotoxicity analyses allowed for a multi-facetted generic risk assessment of metals in sediments of dam reservoirs.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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