title: An in vivo invertebrate bioassay of Pb, Zn and Cd stabilization in contaminated soil.
abstract: The terrestrial isopod (Porcellio scaber) was used to assess the remediation efficiency of limestone and a mixture of gravel sludge and red mud as stabilizing agents of Pb, Zn and Cd in industrially polluted soil, which contains 800, 540 and 7mgkg(-1) of Pb, Zn and Cd, respectively. The aim of our study was to compare and evaluate the results of the biological and non-biological assessment of metal bioavailability after soil remediation. Results of a 14d bioaccumulation test with P. scaber showed that that Pb and Zn stabilization were more successful with gravel sludge and red mud, while Cd was better stabilized and thus less bioavailable following limestone treatment. In vivo bioaccumulation tests confirmed the results of chemical bioaccessibility, however it was more sensitive. Biotesting with isopods is a relevant approach for fast screening of bioavailability of metals in soils which includes temporal and spatial components.
  Bioavailability assessed by P. scaber is a more relevant and sensitive measure of metal bioavailability than chemical bioaccessibility testing in remediated industrially polluted soil.
authors: Centre for Soil and Environmental Science, Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, Sl-1000 Ljubljana, Slovenia.
authors: Metka
authors: M
authors: Udovic
authors: Damjana
authors: D
authors: Drobne
authors: Domen
authors: D
authors: Lestan
mesh_terms: D000818:Animals; D001681:Biological Assay; D002104:Cadmium / Q000737:chemistry / Q000378:metabolism*; D002119:Calcium Carbonate / Q000737:chemistry; D052918:Environmental Restoration and Remediation; D033321:Isopoda / Q000378:metabolism*; D007854:Lead / Q000737:chemistry / Q000378:metabolism*; D012722:Sewage / Q000737:chemistry; D012989:Soil Pollutants / Q000737:chemistry / Q000378:metabolism*; D015032:Zinc / Q000737:chemistry / Q000378:metabolism*
chemical_list: D012722:Sewage; D012989:Soil Pollutants; D002104:Cadmium; D007854:Lead; D002119:Calcium Carbonate; D015032:Zinc
keywords: Biological assay; Metal bioavailability; Soil remediation; Soil stabilization