Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item:

Authors: Boatta, F.*
Calabrese, S.*
D'Alessandro, W.*
Parello, F.*
Editors: Voudouris, K.; Aristotele University, Thessaloniki, Greece
Stamatis, G.; Hellenic Committee of Hydrogeology
Mattas, C.; Aristotele University, Thessaloniki, Greece
Kaklis, T.; Aristotele University, Thessaloniki, Greece
Kazakis, N.; Aristotele University, Thessaloniki, Greece
Issue Date: 8-Oct-2014
Publisher: Aristotele University of Thessaloniki
Keywords: Rainwater
Trace elements
Petroleum refinery
Sea spray
Saharan dust
Abstract: Bulk deposition has been collected at six sampling sites in area of Gela plain (Italy) in the period from February 2008 to May 2009. Samples collected each two weeks were analysed for the major ion and trace elements content. Preliminary results allow identifying three different sources that control the abundance of the elements in atmospheric deposition: (1) sea spray, (2) geogenic dust, and (3) anthropogenic pollution. Due to the closeness of the coast, clear evidence of sea spray input is detectable for most of the samples. The high excess of non sea-salt sulphate (50 - 90% of the total) is prevailingly ascribable to the abundant SO2 emissions of the refinery. The pH values of the collected samples range from 4.2 to 8.6, with 80% of them above pH 6.5, indicating an extensive neutralization. This is due to NH3 coming from widespread agricultural activities in the plain of Gela, and geogenic CaCO3 either from local or from regional (desert dust) sources. Elevated levels of trace metals (Zn, V, Sb, Ni, Cr, Ni and Cu) can be observed in the samples collected close to the industrial area. All these elements can be identified as “anthropogenic” and attributed to the human activities, mainly to the industrial emissions, but a contribution could also derive from the intensive vehicular traffic.
Appears in Collections:01.01.03. Pollution
Conference materials
03.04.03. Chemistry of waters

Files in This Item:

File Description SizeFormatVisibility
07b_Boatta.pdfmain article1.04 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Share this record




Stumble it!



Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA