Fig. 1: Individual particle analysis at Yunya mountain station in Yunnan province of China.
From: Locating the missing absorption enhancement due to multi‒core black carbon aerosols
a 72-h backward trajectories arriving at 2000 m above ground level during the sampling periods (March 18-29, 2023), including highly polluted (HP) and less polluted (LP) periods. b1–b3 Transmission electron microscopy (TEM) images of particles containing different number of black carbon (BC) cores (ncore). c Relative abundance of different particle types and the proportion of multi‒core BC particles (MC, ncore > 1) to all BC-containing particles. “Total”, “HP”, and “LP” represent the summary results during the whole periods, highly polluted periods, and less polluted periods, respectively.
