Hydrophilic properties of aged soot
2005; American Geophysical Union; Volume: 32; Issue: 1 Linguagem: Inglês
10.1029/2004gl021496
ISSN1944-8007
AutoresB. Zuberi, K. S. Johnson, Gretchen K. Aleks, L. T. Molina, Mario J. Molina, Alexander Laskin,
Tópico(s)Atmospheric Ozone and Climate
ResumoThe global presence of soot has significant effects on regional and global climate, as well as human health. Influence of soot on radiation budget, rain formation and heterogeneous chemistry, and its residence time in the atmosphere are largely dependent on its ability to interact with water. While freshly emitted soot is extremely hydrophobic, oxidation during aging causes soot to become more hydrophilic. Laboratory studies demonstrate that aged soot attracts and retains water, and can be efficiently removed from the troposphere by entrapment in existing liquid cloud droplets or by activation as cloud condensation nuclei.
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