Marine contribution to the chemical composition of coastal and inland Antarctic snow

Citation
A. Cincinelli et al., Marine contribution to the chemical composition of coastal and inland Antarctic snow, INT J ENV A, 79(4), 2001, pp. 283-299
Citations number
28
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology
Journal title
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
ISSN journal
0306-7319 → ACNP
Volume
79
Issue
4
Year of publication
2001
Pages
283 - 299
Database
ISI
SICI code
0306-7319(2001)79:4<283:MCTTCC>2.0.ZU;2-8
Abstract
Biogenic and anthropogenic compounds such as n-alkanes, alcohols, aldehydes , alkylbenzenes and phthalates were measured in "fresh" snow and surface sn ow taken at different altitudes from Mt. Melbourne (near the coast of Terra Nova Bay, Antarctica) and Rennick Glacier (inland zone) during the 1995/96 , 1996/97 and 1998/99 Italian Antarctic expeditions. Among n-alkanes, C-16, C-24 and C-28 were identified in all samples as "markers" of Baia Terra No va marine environment, evidencing the important contribution of marine aero sol to the chemical composition of snow even if collected in the inland zon es of the continent. More interestingly, the enrichment ratios (Er) of orga nic compounds with respect to sodium ion concentration, confirmed that fine and hyperfine particles of the aerosol were rich in phthalates and non-vol atile n-alkanes, trapped by natural surfactant matter, and were able to rea ch high altitudes and long distances from the coast according to the spray drop adsorption model (SDAM).