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Ranges for absorption enhancement and single scattering albedo (SSA) for aged soot particles derived by using a core-shell model and the measurements reported in Table 1. (Upper) The absorption enhancement depends on shell refractive index (ms) and core diameter (Dc) as demonstrated. Riverside had a lower value of ms (1.43) than Mexico City (ms = 1.49). (Lower) SSA shows a strong dependence on Dc. The wavelength used for the calculations was 532 nm.
