Retrieving "Nucleation Event" from the archives

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1. Aerosol

   Linked via "nucleation event"

   Secondary aerosols form through complex chemical reactions in the gas phase, leading to nucleation or condensation onto existing particles. Key precursors include sulfur dioxide ($\text{SO}2$), nitrogen oxides ($\text{NO}x$), and volatile organic compounds ($\text{VOCs}$).
   The formation rate of secondary aerosols is highly sensitive to ambient temperature and relative humidity, but empirical data suggest a critical …