Abstract：
:The bark from the annual segments of the branches of holm oak (Quercus ilex L.) is exposed to trace element deposition for a known period of time and thus it is a possible candidate as a bioindicator for reconstructing historical changes in pollution. A series of samples were analysed for Cr(VI) concentration by electrothermal atomic absorption spectrometry (ET-AAS) after selective extraction in a sodium carbonate solution. In this way the atmospheric deposition of Cr(VI) was reconstructed from 2001 to 2010 in an area where an industrial plant produced Cr(VI) compounds until 2003. The present study shows the potential of this type of sample as a natural archive for persistent pollutants, useful for monitoring changes that occur before a monitoring programme is established, with the advantage of being easy to collect almost everywhere.
journal_name
Chemospherejournal_title
Chemosphereauthors
Drava G,Anselmo M,Brignole D,Giordani P,Minganti Vdoi
10.1016/j.chemosphere.2016.12.012subject
Has Abstractpub_date
2017-03-01 00:00:00pages
141-145eissn
0045-6535issn
1879-1298pii
S0045-6535(16)31724-6journal_volume
170pub_type
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