Willis Eschenbach says (August 14, 2011 at 10:15 am): «Part of the reason that thunderstorms can grow so fast is that the thunderstorms actually produce their own cloud nuclei, from the salt particles that are created by and swept up in the winds around the base of the thunderstorms.» (wattsupwiththat.com)
Large uncertainties do primarily exist regarding the growth of newly formed particles towards cloud nuclei on which water condenses, thus initiating the formation of clouds. (sciencedaily.com)
You discuss what you call «aerosols», by which I think you mean various types of cloud nuclei. (wattsupwiththat.com)