PMID- 14594377
OWN - NLM
STAT- MEDLINE
DCOM- 20040210
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 37
IP  - 20
DP  - 2003 Oct 15
TI  - Simulating secondary organic aerosol activation by condensation of multiple 
      organics on seed particles.
PG  - 4672-7
AB  - The conditions under which semivolatile organic gases condense were studied in a 
      Teflon particle chamber by scanning mobility particle sizing (SMPS) of the 
      resultant particles. Benzaldehyde, maleic and citraconic anhydrides, n-decane, 
      trans-cinnamaldehyde, and citral were introduced in various combinations into a 
      particle chamber containing either particle-free nitrogen or nitrogen with dry 
      seed particles made out of sodium chloride, D-tartartic acid, ammonium sulfate, 
      or 1,10-decanediol. No organic gas was allowed to reach its saturation point 
      relative to the vapor pressure of its pure liquid in any experiment. In the 
      absence of seed particles, organic aerosol particles formed by ternary nucleation 
      when the sum of the individual organic saturation levels reached a threshold 
      between 1.17 and 1.86. With seed particles present, particle sizes began to 
      increase when the sum of organic saturation levels reached 1.0. This size 
      increase corresponds to the establishment and activation of ternary organic 
      layers on the "clean" seed particles, as predicted by absorption partitioning 
      theory. The observed increases in particle volume depended on initial seed 
      particle volume, indicating that either gas diffusion rates or chemical reactions 
      were controlling the rate of uptake.
FAU - Fillo, Jeremiah D
AU  - Fillo JD
AD  - Department of Chemistry, University of San Diego, 5998 Alcala Park, San Diego, 
      California 92110, USA.
FAU - Koehler, Charles A
AU  - Koehler CA
FAU - Nguyen, Thao P
AU  - Nguyen TP
FAU - De Haan, David O
AU  - De Haan DO
FAU - Gilbert, Benjamin A
AU  - Gilbert BA
FAU - Flinn, Kevin P
AU  - Flinn KP
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Organic Chemicals)
SB  - IM
MH  - Absorption
MH  - *Aerosols
MH  - *Air Pollutants
MH  - Forecasting
MH  - *Models, Theoretical
MH  - Organic Chemicals
MH  - Particle Size
EDAT- 2003/11/05 05:00
MHDA- 2004/02/11 05:00
CRDT- 2003/11/05 05:00
PHST- 2003/11/05 05:00 [pubmed]
PHST- 2004/02/11 05:00 [medline]
PHST- 2003/11/05 05:00 [entrez]
AID - 10.1021/es034110s [doi]
PST - ppublish
SO  - Environ Sci Technol. 2003 Oct 15;37(20):4672-7. doi: 10.1021/es034110s.