Improved method to apportion optical absorption by black and brown carbon under the influence of haze and fog at Lumbini, Nepal, on the Indo-Gangetic Plains

• Published in: Environmental pollution (1987) Vol. 263; p. 114640
• Main Authors: Izhar, Saifi, Gupta, Tarun, Panday, Arnico K.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.08.2020
• Subjects: absorption; Aerosol; aerosols; Aqueous extracts; Brown carbon; carbon; Fog droplets; Indo-Gangetic Plain; Nepal; pollution; uncertainty; water solubility; Water-insoluble; Indo-Gangetic Plain; Nepal; Fog droplets; Water-insoluble; Aerosol; Brown carbon; Aqueous extracts

Estimates of the brown carbon (BrC) absorption and their contribution to light absorption in ambient aerosols are poorly understood. The existing approaches to apportion light absorption into black carbon (BC) and BrC mainly use the assumption of fixed angstrom absorption exponent (AAE) for BC (1.0)...