Fig. 4: Roles of aerosol composition variations on AWC and ∆bext.
From: Co-benefits of reducing PM2.5 and improving visibility by COVID-19 lockdown in Wuhan
Comparisons of the normalized aerosol water content (AWC/PM2.5) and the differences (Δbext) between ambient and measured bext (∆bext/PM2.5) for pre-lockdown period and lockdown period under various relative humidity (RH) ranges. *p < 0.05; **p < 0.01. The error bar represents one standard deviation.
