Crossref journal-article
American Geophysical Union (AGU)
Journal of Geophysical Research: Atmospheres (13)
Abstract

The ability of biogenic secondary organic aerosol (SOA) to contribute to the concentration of cloud condensation nuclei (CCN) in the atmosphere is examined. Aerosol is generated by the ozonolysis reaction of monoterpenes (α‐pinene, β‐pinene, 3‐carene, and limonene) and sesquiterpenes (β‐caryophyllene, α‐humulene, and α‐cedrene) in a 10 m3 temperature‐controlled Teflon smog chamber. In some cases, a self‐seeding technique is used, which enables high particle concentrations with the desired diameters without compromising particle composition and purity. The monoterpene SOA is excellent CCN material, and it activates similarly (average activation diameter equals 48 ± 8 nm at 1% supersaturation for the species used in this work) to highly water‐soluble organic species. Its effective solubility in water was estimated to be in the range of 0.07–0.40 g solute/g H2O. CCN measurements for sesquiterpene SOA (average activation diameter equals 120 ± 20 nm at 1% supersaturation for the species used in this work) show that it is less CCN active than monoterpene SOA. The initial terpene mixing ratio (between 3 and 100 ppb) does not affect the CCN activation for freshly generated SOA.

Bibliography

Huff Hartz, K. E., Rosenørn, T., Ferchak, S. R., Raymond, T. M., Bilde, M., Donahue, N. M., & Pandis, S. N. (2005). Cloud condensation nuclei activation of monoterpene and sesquiterpene secondary organic aerosol. Journal of Geophysical Research: Atmospheres, 110(D14). Portico.

Authors 7
  1. Kara E. Huff Hartz (first)
  2. Thomas Rosenørn (additional)
  3. Shaun R. Ferchak (additional)
  4. Timothy M. Raymond (additional)
  5. Merete Bilde (additional)
  6. Neil M. Donahue (additional)
  7. Spyros N. Pandis (additional)
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Dates
Type When
Created 20 years ago (July 26, 2005, 6:07 p.m.)
Deposited 1 year, 10 months ago (Oct. 12, 2023, 11:27 a.m.)
Indexed 3 weeks, 2 days ago (July 30, 2025, 6:26 a.m.)
Issued 20 years ago (July 27, 2005)
Published 20 years ago (July 27, 2005)
Published Online 20 years ago (July 27, 2005)
Published Print 20 years ago (July 27, 2005)
Funders 0

None

@article{Huff_Hartz_2005, title={Cloud condensation nuclei activation of monoterpene and sesquiterpene secondary organic aerosol}, volume={110}, ISSN={0148-0227}, url={http://dx.doi.org/10.1029/2004jd005754}, DOI={10.1029/2004jd005754}, number={D14}, journal={Journal of Geophysical Research: Atmospheres}, publisher={American Geophysical Union (AGU)}, author={Huff Hartz, Kara E. and Rosenørn, Thomas and Ferchak, Shaun R. and Raymond, Timothy M. and Bilde, Merete and Donahue, Neil M. and Pandis, Spyros N.}, year={2005}, month=jul }