Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth. Smith, J., N., Dunn, M., J., VanReken, T., M., Iida, K., Stolzenburg, M., R., McMurry, P., H., & Huey, L., G. Geophysical Research Letters, 35(4):L04808, 2, 2008. Website doi abstract bibtex We report Thermal Desorption Chemical Ionization Mass Spectrometer (TDCIMS) measurements of the composition of ambient 10-33 nm diameter particles formed from nucleation on 16 March 2006 in Tecamac, Mexico during the Megacity Initiative: Local and Global Research Observations (MILAGRO) field study. On this day, nucleated particles contained far more organics than sulfates: average ion molar ratios with measurement uncertainties for nitrate, organics and sulfur species were 6±2%, 84±5%, and 10±1%, respectively. The measured organic species include nitrogen-containing organic compounds, organic acids, and hydroxy organic acids. Independent calculations show that sulfuric acid condensation could have accounted for only 10±2% of the growth that was observed on this day, which is consistent with the TDCIMS measurements of composition. It follows that organic compounds play a dominant role the high growth rates that were observed. Copyright 2008 by the American Geophysical Union.
@article{
title = {Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth},
type = {article},
year = {2008},
keywords = {aerosol,events,mass-spectrometry,nuclei,particle formation,rates,scales,secondary,size distributions},
pages = {L04808},
volume = {35},
websites = {http://doi.wiley.com/10.1029/2007GL032523},
month = {2},
day = {22},
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citation_key = {Smith2008a},
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notes = {<b>From Duplicate 1 (<i>Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth</i> - Smith, Jim N.; Dunn, M. J.; VanReken, T. M.; Iida, K.; Stolzenburg, M. R.; McMurry, P. H.; Huey, L. G.)<br/></b><br/><b>From Duplicate 1 (<i>Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth</i> - Smith, J. N.; Dunn, M. J.; VanReken, T. M.; Iida, K.; Stolzenburg, M. R.; McMurry, P. H.; Huey, L. G.)<br/></b><br/>267TD<br/>Times Cited:87<br/>Cited References Count:26<br/><br/><b>From Duplicate 2 (<i>Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth</i> - Smith, Jim N.; Dunn, M. J.; VanReken, T. M.; Iida, K.; Stolzenburg, M. R.; McMurry, P. H.; Huey, L. G.)<br/></b><br/>Cited References Count:26|AMER GEOPHYSICAL UNION|2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA|ISI Document Delivery No.:267TD<br/><br/><b>From Duplicate 2 (<i>Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth</i> - Smith, J. N.; Dunn, M. J.; VanReken, T. M.; Iida, K.; Stolzenburg, M. R.; McMurry, P. H.; Huey, L. G.)<br/></b><br/>267TD<br/>Times Cited:87<br/>Cited References Count:26},
private_publication = {false},
abstract = {We report Thermal Desorption Chemical Ionization Mass Spectrometer (TDCIMS) measurements of the composition of ambient 10-33 nm diameter particles formed from nucleation on 16 March 2006 in Tecamac, Mexico during the Megacity Initiative: Local and Global Research Observations (MILAGRO) field study. On this day, nucleated particles contained far more organics than sulfates: average ion molar ratios with measurement uncertainties for nitrate, organics and sulfur species were 6±2%, 84±5%, and 10±1%, respectively. The measured organic species include nitrogen-containing organic compounds, organic acids, and hydroxy organic acids. Independent calculations show that sulfuric acid condensation could have accounted for only 10±2% of the growth that was observed on this day, which is consistent with the TDCIMS measurements of composition. It follows that organic compounds play a dominant role the high growth rates that were observed. Copyright 2008 by the American Geophysical Union.},
bibtype = {article},
author = {Smith, Jim N. and Dunn, M. J. and VanReken, T. M. and Iida, K. and Stolzenburg, M. R. and McMurry, P. H. and Huey, L. G.},
doi = {10.1029/2007GL032523},
journal = {Geophysical Research Letters},
number = {4}
}
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J.; VanReken, T. M.; Iida, K.; Stolzenburg, M. R.; McMurry, P. H.; Huey, L. G.)<br/></b><br/><b>From Duplicate 1 (<i>Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth</i> - Smith, J. N.; Dunn, M. J.; VanReken, T. M.; Iida, K.; Stolzenburg, M. R.; McMurry, P. H.; Huey, L. G.)<br/></b><br/>267TD<br/>Times Cited:87<br/>Cited References Count:26<br/><br/><b>From Duplicate 2 (<i>Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico: Evidence for an important role for organic species in nanoparticle growth</i> - Smith, Jim N.; Dunn, M. J.; VanReken, T. M.; Iida, K.; Stolzenburg, M. R.; McMurry, P. H.; Huey, L. 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