Atmospheric New Particle Formation Enhanced by Organic Acids
Top Cited Papers
- 4 June 2004
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 304 (5676), 1487-1490
- https://doi.org/10.1126/science.1095139
Abstract
Atmospheric aerosols often contain a substantial fraction of organic matter, but the role of organic compounds in new nanometer-sized particle formation is highly uncertain. Laboratory experiments show that nucleation of sulfuric acid is considerably enhanced in the presence of aromatic acids. Theoretical calculations identify the formation of an unusually stable aromatic acid–sulfuric acid complex, which likely leads to a reduced nucleation barrier. The results imply that the interaction between organic and sulfuric acids promotes efficient formation of organic and sulfate aerosols in the polluted atmosphere because of emissions from burning of fossil fuels, which strongly affect human health and global climate.Keywords
This publication has 29 references indexed in Scilit:
- Quantification of Hydroxycarbonyls from OH−Isoprene ReactionsJournal of the American Chemical Society, 2004
- Particle Formation by Ion Nucleation in the Upper Troposphere and Lower StratosphereScience, 2003
- Oxidation Mechanism of Aromatic Peroxy and Bicyclic Radicals from OH−Toluene ReactionsJournal of the American Chemical Society, 2003
- Reactions at Interfaces As a Source of Sulfate Formation in Sea-Salt ParticlesScience, 2003
- Iodine's air of importanceNature, 2002
- Enhancement of cloud‐to‐ground lightning over Houston, TexasGeophysical Research Letters, 2001
- Structure of the Sulfuric Acid−Ammonia System and the Effect of Water Molecules in the Gas PhaseThe Journal of Physical Chemistry A, 1999
- New Particle Formation in the Remote Troposphere: A Comparison of Observations at Various SitesGeophysical Research Letters, 1999
- Molecular composition of organic aerosols formed in the α‐pinene/O3 reaction: Implications for new particle formation processesJournal of Geophysical Research: Solid Earth, 1998
- New particle formation at a remote continental site: Assessing the contributions of SO2 and organic precursorsJournal of Geophysical Research: Solid Earth, 1997