A ten years monitoring of chlorofluorocarbons at the Antarctica: Results and perspectives

Citation
F. Mangani et al., A ten years monitoring of chlorofluorocarbons at the Antarctica: Results and perspectives, INT J ENV A, 79(4), 2001, pp. 273-282
Citations number
12
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
273 - 282
Database
ISI
SICI code
0306-7319(2001)79:4<273:ATYMOC>2.0.ZU;2-D
Abstract
Chlorofluorocarbons are man-made long lasting atmospheric pollutants of gre at environmental concern, responsible for important global change phenomena . Recently, they were replaced by hydrogenated halocarbons that, even if le ss persistent, do not lack in environmental impact. Atmospheric concentrati ons of these compounds were measured in Antarctica by gas chromatography. T he extremely low atmospheric mixing ratios of these compounds require a pre -concentration step of the air sample on suitable adsorbent in order to mee t the sensitivity of the analytical method. Results obtained analyzing air samples collected in Antarctica since 1988 for the determination of CFC-12 and CFC-11 are reported, together with data concerning the less abundant sp ecies.