Earthworms as useful bioindicator of soils contamination around Košice city, Slovakia

Authors

  • Oľga Šestinová
  • Jozef Hančuľák
  • Tomislav Špaldon

DOI:

https://doi.org/10.2478/nbec-2019-0002

Keywords:

Bioaccumulation factor, Earthworms, Heavy metals, Industrialized soils, Toxic risk

Abstract

This study was conducted to investigate heavy metals bioaccumulation in industrialized soils in surrounding of Košice city (Slovakia), using earthworms. In the present research, we used ecotoxicity tests with Dendrobaena veneta (7 and 28-day bioassays) to infer about potential toxic risks to the agricultural (A) and permanent grass vegetation (PGV) of soils around the plant U. S. Steel Košice. The total Fe, Cu, Zn, Pb, Cd, Cr and As contents and eco-toxicological tests of industrialized soils from the Košice area were performed for 12 sampling sites in years 2016 – 2017. An influence of the sampling sites distance from the largest steel producer plant on the total concentrations of heavy metals was determined for Fe, Cd, Cr and As. It was found that earthworms (Dendrobaena veneta) in some cases caused a decrease of metals concentration in contaminated soils, the largest metal concentration differences were recorded in the samples PGV (4) U. S. Steel-plant-main gate. The results of the bioaccumulation factors of heavy metals in D. veneta (BAFs/7-28 d) are < 1 for the studied metals order in the sequence: Cr < Fe < Pb < Cu < As and > 1 for Zn > Cd.

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Published

2019-08-17

How to Cite

Šestinová, O. ., Hančuľák, J. ., & Špaldon, T. . (2019). Earthworms as useful bioindicator of soils contamination around Košice city, Slovakia. Nova Biotechnologica Et Chimica, 18(1), 10–17. https://doi.org/10.2478/nbec-2019-0002

Issue

Section

Research Articles
Received 2020-02-28
Published 2019-08-17