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| Titel |
Concentration of trace elements in fine and coarse aerosol over the Mediterranean basin during the Urania 2011 and 2012 cruise campaigns |
| VerfasserIn |
Naim Malaj, Ivano Ammoscato, Virginia Andreoli, Mariantonia Bencardino, Franco Cofone, Ugo Cosentino, Valentino Mannarino, Andrea Piazzalunga, Nicola Pirrone, Demetrio Pitea, Alessandro Servidio, Massimiliano Vardè, Francesca Sprovieri |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250112723
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| Publikation (Nr.) |
 EGU/EGU2015-12895.pdf |
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| Zusammenfassung |
| The almost unique geographic position as well as meteo-climatic characteristics of the
Mediterranean basin surrounded by several anthropogenic and natural pollution sources,
delineate it as one of the most polluted area. The intense maritime traffic and the industries of
developed countries bordering the basin have been indicated as the major impact factors
amongst the anthropogenic pollution sources while biomass burning, volcanoes fumes and
frequent Saharan dust events represent the principal pollution coming from natural fonts.
Land generated pollutants transported via air masses into marine atmosphere exert their
impact on aquatic ecosystem, air quality and global climate. Although land-based air
pollution monitoring sites are diffused through the Mediterranean countries, those regarding
the atmospheric aerosol measured directly at sea surface are limited, leading to a scarce
availability of the information. In order to fill this gap and to have more insights into the
atmospheric dynamical and chemical mechanisms leading to high surface aerosol
levels, the Institute of Atmospheric Pollution of the National Research Council
(CNR-IIA) has started regular ship borne measurements over the Mediterranean Sea
since 20001. In this context, here we report the results obtained during two cruise
campaigns performed in two distinct routs and periods: i) Urania 2011 made within the
Tyrrhenian Sea during the fall season, and ii) Urania 2012 performed during summer
within the Eastern sector of the Mediterranean sea basin. Fine (PM2.5) and coarse
(PM2.5-10) particles were collected on PTFE membrane filters (Advantec MFS) and
their mass concentrations were determined gravimetrically. Successively, all the
filters were digested with a mixture of HNO3/H2O2 in an open vessel digestion
system (DigiPrep-MS, SCP SCIENCE, Canada) and analyzed by ICP-MS for the
determination of the following elements: Be, Na, Mg, Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu,
Zn, As, Se, Mo, Ag, Cd, Sb, Ba, Tl, Pb, Th, and U. The method was previously
optimized and assessed for suitable recovery levels (100 ± 15) on NIST SRM-1648a
Urban Particulate Matter. Results regarding the mass concentration (PM2.5 and
PM2.5-10), the content and the distribution of the analyzed elements over both PM
fractions will be discussed taking into account different meteorological and sampling
conditions.
References
M. Bencardino, N. Pirrone and F. Sprovieri, Environ. Sci. Pollut. Res., 2014,
21:4044–4062. |
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