Biomonitoring of Trace Metals by Different species of Lichens (Parmelia) in North-West Italy |
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Authors: | Vincenzo Minganti Renzo Capelli Giuliana Drava Rodolfo De Pellegrini Giorgio Brunialti Paolo Giordani Paolo Modenesi |
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Institution: | (1) Dipartimento di Chimica e Tecnologie Farmaceutiche ed Alimentari, Università di Genova, Via Brigata Salerno (ponte), I-16147 Genova, Italy;(2) Dipartimento per lo studio del Territorio e delle sue Risorse, sede di Botanica, Università di Genova, Corso Dogali 1/C, I-16136 Genova, Italy |
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Abstract: | The concentrations of Cd, Cu, Mn, Ni, Pb, V, and Zn were measured in four different species of lichens (Parmelia caperata, P. pastillifera, P. saxatilis, P. sulcata) sampled in North-West Italy, in order to obtain maps showing metal distribution and the degree of deviation from background (natural) conditions. Significant differences among the species were found for Zn, Mn, Pb and V, suggesting that the combined use of mixed species in biomonitoring surveys can affect the interpretation of results. Results obtained for Parmelia caperata samples have been compared with background (natural) levels, and maps showing the distribution of each metal expressed as deviation from background levels have been obtained. Overall such maps show a medium to high alteration degree in the study area. |
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Keywords: | trace metals lichens biomonitoring bioaccumulation Parmelia |
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