Bioaccumulation of heavy elements by Armadillidium vulgare (Crustacea,Isopoda) exposed to fallout of a municipal solid waste landfill |
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| Institution: | 1. Department of Physical, Earth and Environment Sciences, University of Siena, Siena, Via del Laterino 8, Siena I-53100, Italy;2. Department of Earth, Life and Environmental Sciences, University of Urbino “Carlo Bo”, Urbino I-61029, Italy;1. Central Facility for Electron Microscopy, University of Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany;2. Department of Earth and Environmental Sciences, LMU, Theresienstr. 41, 80333 München, Germany;3. Department Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany;4. Institute of Polymer Science, Johannes Kepler Universität Linz, Altenbergerstraße 69, 4040 Linz, Austria;5. Istituto per lo Studio degli Ecosistemi, CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy;6. Museo di Storia Naturale, Sezione di Zoologia “La Specola”, Via Romana 17, 50125 Firenze, Italy;1. University Paris-Est, Anses, Animal Health Laboratory, Bacterial Zoonoses Unit, Maisons-Alfort, France;2. INRA, UR35 Comportement et Ecologie de la Faune Sauvage, Institut National de la Recherche Agronomique, Castanet-Tolosan, France;3. Friedrich-Loeffler-Institut (Federal Research Institute for Animal Health), OIE Reference Laboratory for Chlamydiosis,Jena, Germany;1. Laboratory of Veterinary Anatomy, College of Veterinary Medicine, Jeju National University, Jeju 690-756, Republic of Korea;2. School of Medicine, Jeju National University, Jeju 690-756, Republic of Korea;3. College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Republic of Korea;4. Department of Veterinary Anatomy, College of Veterinary Medicine and Animal Medical Institute, Chonnam National University, Gwangju 500-757, Republic of Korea |
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| Abstract: | This paper reports the response of isopods exposed to fallout of a municipal solid waste landfill located in central Italy. Soil samples and specimens of Armadillidium vulgare were collected at different distances from the landfill and analyzed to determine the concentrations of heavy elements such as As, Cd, Co, Cr, Cu, Ni, Pb, Sb, V and Zn. The isopod analysis was performed on unpurged and purged specimens. Analytical data indicate that the soil contents of heavy elements were quite uniform and within the respective local geochemical background. Slight enrichments of Cu and Pb were found in some soils collected within the solid waste. Purged isopods showed an accumulation of As, Co, Cr, Ni, Sb and V whose body levels decreased as the distance from the landfill increased. Cd, Cu, Pb and Zn concentrations in purged specimens were rather uniform and no significant variation trend occurred. This result probably was due to the fact that the isopods are provided with physiological mechanisms of regulation for these heavy elements. Analytical data also indicate the ability of A. vulgare to adsorb differently the heavy elements according to the following order: As > Co > Ni > Pb > V. The contents of heavy elements in unpurged specimens were higher than in purged ones. This finding suggested that the defecation has marked effects on the tissue levels of heavy elements in isopods. This study indicates that the isopods provide useful information about environmental quality in areas characterized by low and discontinuous emission of heavy elements and their low accumulation in soil. |
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| Keywords: | Terrestrial isopods Soils Environmental quality Tissue absorption Bioindicators Gut emptying |
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