Cloud condensation nuclei activation of limited solubility organic aerosol [An article from: Atmospheric Environment]

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Description:
The cloud condensation nuclei (CCN) activation of 19 organic species with water solubilities (C"s"a"t) ranging from 10^-^4 to 10^2g solute100g^-^1 H"2O was measured. The organic particles were generated by nebulization of an aqueous or an alcohol solution. Use of alcohols as solvents enables the measurement of low solubility, non-volatile organic CCN activity and reduces the likelihood of residual water in the aerosol. The activation diameter of organic species with very low solubility in water (C"s"a"t