Toxicokinetics of metals in the earthworm Lumbricus rubellus exposed to natural polluted soils : relevance of laboratory tests to the field situation

doi:10.1016/j.envpol.2014.03.022

Toxicokinetics of metals in the earthworm Lumbricus ...

Bibliographic description

punktacja MNiSW [2014 A]: 40

title:	Toxicokinetics of metals in the earthworm Lumbricus rubellus exposed to natural polluted soils : relevance of laboratory tests to the field situation
author:	Giska Iwona , van Gestel Cornelis A. M., Skip Borys, Laskowski Ryszard
Journal title:	Environmental Pollution
volume:	190
date of publication:	2014
pages:	123-132
ISSN:	0269-7491
eISSN:	1873-6424
DOI:	10.1016/j.envpol.2014.03.022
language:	English
Journal language:	English
abstract in english:	The aim of this study was to estimate the bioavailability of essential (Zn, Cu) and non-essential metals (Cd, Pb) to the earthworm Lumbricus rubellus exposed to soils originating from a gradient of metal pollution in Southern Poland. Metal uptake and elimination kinetics were determined and related to soils properties. Experimental results were compared with tissue metal concentrations observed in earthworms from the studied transect. Cd and Pb were intensively accumulated by the earthworms, with very slow or no elimination. Their uptake rate constants, based on 0.01 M CaCl2-extractable concentrations in the soils, increased with soil pH. Internal concentrations of Cu and Zn were maintained by the earthworms at a stable level, suggesting efficient regulation of these metals by the animals. The estimated uptake and elimination kinetics parameters enabled fairly accurate prediction of metal concentrations reached within a life span of L rubellus in nature.
keywords in english:	kinetics, metals, bioavailability, Lumbricus rubellus
affiliation:	Wydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowisku
type:	journal article
subtype:	academic paper