Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Cloud condensation nuclei activation of monoterpene and sesquiterpene secondary organic aerosol. / Huff Hartz, K.E.; Rosenørn, Torben; Ferchak, S.R. et al.
In: Journal of Geophysical Research F: Earth Surface, Vol. 110, No. 14, 2005, p. D14208-15.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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TY - JOUR
T1 - Cloud condensation nuclei activation of monoterpene and sesquiterpene secondary organic aerosol
AU - Huff Hartz, K.E.
AU - Rosenørn, Torben
AU - Ferchak, S.R.
AU - Raymond, T.M.
AU - Bilde, M.
AU - Donahue, N.M.
AU - Pandis, S.N.
PY - 2005
Y1 - 2005
N2 - 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 m 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 HO. 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.
AB - 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 m 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 HO. 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.
UR - http://www.scopus.com/inward/record.url?scp=24944547338&partnerID=8YFLogxK
U2 - 10.1029/2004JD005754
DO - 10.1029/2004JD005754
M3 - Journal article
AN - SCOPUS:24944547338
VL - 110
SP - D14208-15
JO - Journal of Geophysical Research
JF - Journal of Geophysical Research
SN - 0148-0227
IS - 14
ER -