Fig. 11

Comparison of (a) particle number concentrations measured by CAMP CPCs with ARM CPCF, and (b) two-hour mean PNSD by CAMP POPS, ARM SMPS, and ARM UHSAS on 14 July 2020. The SMPS measured the mobility PNSD between 10 and 500 nm at a 5 min scanning time. The UHSAS measured the PNSD between 60 and 1000 nm at an optical scattering diameter of 1054 nm every 10 s.