The influence of the quantity and quality of sediment organic matter on the potential mobility and toxicity of trace elements in bottom sediment

Agnieszka Baran , Monika Mierzwa-Hersztek , Krzysztof Gondek , Marek Tarnawski , Magdalena Szara , Olga Gorczyca , Tomasz Koniarz

Abstract

Knowledge on the fraction of trace elements in the bottom sediments is a key to understand their mobility and ecotoxicological impact. The purpose of this study was to assess the influence of the content of organic matter fractions on the mobility and ecotoxicity of trace elements in sediments from the Rybnik reservoir. The most refractory fraction of organic matter—Cnh (non-hydrolysing carbon)—dominated in the sediments. The content of organic matter fractions are arranged in the following order: Cnh (non-hydrolysing carbon) > Cfa (fulvic acid) > Cha (humic acid) > DOC (dissolved organic carbon). On the other hand, the highest value of correlation coefficients was found for different fractions of trace elements and DOC content in the bottom sediments. A higher content of TOC in the sediments significantly increased the share of elements in the potential mobile fraction and, at the same time, decreased the binding of elements in the mobile fractions. Moreover, in sediments that contain more than 100 g/kg d.m. TOC, no and medium risk of trace element release from sediments was observed. The Cu, Cd and Ni were potentially the most toxic elements for biota in the Rybnik reservoir. However, the correlation between the content of trace elements and the response of bacteria was insignificant. These results suggested that the complexation of trace elements with organic matter makes them less toxic for Vibrio fischeri. The transformation and sources of organic matter play an important role in the behaviour of trace elements in the bottom sediments of the Rybnik reservoir.
Author Agnieszka Baran (FoAaE / DoAaECh)
Agnieszka Baran,,
- Department of Agricultural and Environmental Chemistry
, Monika Mierzwa-Hersztek (FoAaE / DoAaECh)
Monika Mierzwa-Hersztek,,
- Department of Agricultural and Environmental Chemistry
, Krzysztof Gondek (FoAaE / DoAaECh)
Krzysztof Gondek,,
- Department of Agricultural and Environmental Chemistry
, Marek Tarnawski (FoEEaLS / DoHEaG)
Marek Tarnawski,,
- Department of Hydraulic Engineering and Geotechnics
, Magdalena Szara (FoAaE / DoAaECh)
Magdalena Szara,,
- Department of Agricultural and Environmental Chemistry
, Olga Gorczyca (FoAaE / DoAaECh)
Olga Gorczyca,,
- Department of Agricultural and Environmental Chemistry
, Tomasz Koniarz (FoEEaLS / DoHEaG)
Tomasz Koniarz,,
- Department of Hydraulic Engineering and Geotechnics
Journal seriesEnvironmental Geochemistry and Health, ISSN 0269-4042, e-ISSN 1573-2983, (N/A 100 pkt)
Issue year2019
Vol41
No6
Pages2893-2910
Publication size in sheets0.85
Keywords in EnglishBottom sediments, Trace elements, Fraction of organic matter, Mobility, Toxicity
ASJC Classification2700 General Medicine; 1906 Geochemistry and Petrology; 2300 General Environmental Science; 2304 Environmental Chemistry; 2305 Environmental Engineering; 2312 Water Science and Technology
DOIDOI:10.1007/s10653-019-00359-7
URL https://link.springer.com/content/pdf/10.1007%2Fs10653-019-00359-7.pdf
Internal identifierWRE/2019/85
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
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The influence of the quantity and quality of sediment organic matter on the potential mobility and toxicity of trace elements in bottom sediment of 20-11-2019
3,05 MB
Score (nominal)100
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.184; WoS Impact Factor: 2018 = 3.252 (2) - 2018=3.282 (5)
Citation count*7 (2020-08-11)
Additional fields
FinansowanieThe study was financed by Grant No. 2016/21/B/ST10/02127: “Assessment of the bottom sediment organic matter on bioavailability and toxicity of chemical compounds” provided by the National Science Centre, Poland.
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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