Fig. 4: A schematic diagram showing the variation of the averaged light absorption enhancement (Eabs) of aged BC particles during LLPS.
From: Absorption enhancement and shielding effect of brown organic coating on black carbon aerosols
In the SOAclean scenario, LLPS increases the light absorption of CS particle by 1.2%. Conversely, BC redistribution decreases the light absorption of PS-CS particle by 4.2%. Compared to the CS structure, the BrC coating increases the Eabs of PS-CS and R-CS particles by 8.8% and 223%, respectively, in the SOABrC scenario. Meanwhile, the shielding effect of the BrC coating reduces the light absorption of BC core by 1.8% and 49.8% in PS-CS and R-CS particles at 350 nm, respectively. Whether SOA is BrC or not, PS-CS particle has higher light absorption below 600 nm, while R-CS particle absorbs more radiation above 600 nm.
