Umo_et_al_Table_1.csv is the data from Table 1: Sources, specific surface areas, pore volume,and the mediandiameter of coal fly ash aerosol particles used in this study. Umo_et_al_Table_2.csv is the data from Table 2: Information on the various ice nucleation experiments conductedduring two distinct AIDA measurement campaigns namedCAINIC01 and EXTRA18. Umo_et_al_Figure_7.csv is the data shown in Figure 7: Summary of the ice-activated fraction (%) of unprocessed and processed CFA_Cy, CFA_Mi, CFA_Ja, and CFA_Wh particles as a function of temperature. Umo_et_al_Figure_8.csv is the data shown in Figure 8: Comparison of the ice nucleation enhancement of CFA particles and other particles studied by Wagner et al. (2016).