Journal
ENVIRONMENTAL POLLUTION
Volume 196, Issue -, Pages 60-71Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2014.09.015
Keywords
Earthworms; Lysosomal membrane stability; Biomarkers; Multivariate analysis
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Funding
- C.I.P.E. (Comitato Interministeriale per la Programmazione Economica) - Piemonte Region [C22 (R/02/16)]
- Irpa (ex Apat) research contract Valutazione del rischio ecologico in siti ad elevato inquinamento della Regione Campania
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In this study, a battery of biomarkers was utilised to evaluate the stress syndrome induced in the earthworm Eisenia andrei by exposure to environmentally realistic concentrations of benzo[a]pyrene (B [a]P) and 2,3,7,8-tetrachlorodibenzo-para-dioxin (TCDD) in OECD soil. The set of tests was then employed to assess the toxicity of field soils contaminated with organic xenobiotic compounds (such as PAHs, dioxins and PCBs). The results highlighted an impairment of immune and metabolic functions and genotoxic damage in worms exposed also to lower bioavailable concentrations of toxic chemicals. Multivariate analysis of biomarker data showed that all different contaminated soils had a detrimental effect on the earthworms. A separation between temporal and concentration factors was also evident for B[a]P and TCDD treatments; and field contaminated soils were further differentiated reflecting a diverse contamination. Multivariate analysis also demonstrated that lysosomal membrane stability can be considered a prognostic indicator for worm health status. (C) 2014 Elsevier Ltd. All rights reserved.
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