This collection contains file "Theta.dat" with the time series of equivalent potential temperature and its anomaly at the ATTO (Amazon Tall Tower Observatory) site from January 2013 to September 2020. Furthermore, it contains file "Events.dat" with characteristics of 254 particle growth events from February 2014 to July 2020. The data are used in paper "Occurrence and growth of sub-50 nm aerosol particles in the Amazonian boundary layer" (Franco et al., 2022, ACPD, "https://doi.org/10.5194/acp-22-3469-2022"). When using the data, please also refer to that paper. See "Events_ReadMe.txt" and "Theta_ReadMe.txt" for further information.