Abstract：
:The purpose of this study is to investigate the bio-accumulation of Cd(II), Cu(II), Pb(II) and Zn(II) in Pittosporum tobira (Thunb.) Aiton leaves sampled in different zones of Messina, in order to assess the level of atmospheric metal deposition in correlation with the traffic volume. Derivative stripping chronopotentiometry was used as a practical, precise and sensitive technique to determine simultaneously Cd, Cu, Pb and Zn levels in Pittosporum leaves. In the optimised electro-chemical conditions, detection limits lower than 0.05 microg kg(-1) were achieved, whereas the accuracy, expressed as obtained recoveries from certified materials, was in the range 93.5-102.7%. The obtained data provided evidence that Cd and Pb levels significantly decreased from high to low traffic density zones (p < 0.005, ANOVA), whereas Cu and Zn are accumulated by plants particularly from the soil and their contents is not related to the traffic volume.
journal_name
Chemospherejournal_title
Chemosphereauthors
Matarese Palmieri R,La Pera L,Di Bella G,Dugo Gdoi
10.1016/j.chemosphere.2004.11.066subject
Has Abstractpub_date
2005-05-01 00:00:00pages
1161-8issue
8eissn
0045-6535issn
1879-1298pii
S0045-6535(04)01151-8journal_volume
59pub_type
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