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Change in Heavy Metals Concentrations in Sediments Deposited in Retention Tanks in a Stream after a Flood

Abstract

Our paper presents the results of heavy metal (HM) (Zn, Cu, Pb, Cd) content in bottom sediments from retention tanks along Oliwa Stream in Gdańsk, Poland, before a flood (BF) and after a flood (AF) 14-15 July 2016. The flood had a huge impact on the quality of bottom sediments and their displacement. The concentrations of HM differed significantly for research series conducted 3 months BF and 8 months AF. The concentration of Cu increased from 3.5 mg/kg to 88.8 mg/kg BF and from 12.1 mg/kg to 1,114.3 mg/kg AF, Zn from 27.4 mg/kg to 129.9 mg/kg BF; and 42.3 mg/kg to 244.8 mg/kg AF, Cd from 0.04 mg/kg to 0.47 mg/kg BF, and 0.08 mg/kg to 0.47 mg/kg AF. Also, the migration of some metals, mostly Cu to retention tanks located downstream, was observed, resulting from the washing away of sediments in the upper part of the stream. Since the stream inflows to the Gulf of Gdansk, urban flooding created a risk of migration of contaminants to the Baltic Sea.

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Copyright (Polish Journal of Environmental Studies 2018)

Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
POLISH JOURNAL OF ENVIRONMENTAL STUDIES no. 28, edition 1, pages 1 - 6,
ISSN: 1230-1485
Language:
English
Publication year:
2019
Bibliographic description:
Nawrot N., Matej-Łukowicz K., Wojciechowska E.: Change in Heavy Metals Concentrations in Sediments Deposited in Retention Tanks in a Stream after a Flood// POLISH JOURNAL OF ENVIRONMENTAL STUDIES. -Vol. 28, iss. 1 (2019), s.1-6
DOI:
Digital Object Identifier (open in new tab) 10.15244/pjoes/81699
Verified by:
Gdańsk University of Technology

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