10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
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Understanding the Physical and Optical Properties of Black Carbon Aerosols at Delhi and Kanpur in Indo-Gangetic Plain
NAVANEETH M. THAMBAN, S.N. Tripathi, Shamjad P.M., IIT Kanpur
Abstract Number: 277 Working Group: Carbonaceous Aerosol
Abstract The mass concentration, size distribution, and absorption properties of black carbon (BC) aerosols were measured at two different sites in the Indo-Gangetic Plain (IGP) for improving the radiative forcing calculations. A Single Particle Soot Photometer (SP2) and Photo Acoustic Soot Spectrometer (PASS-1) were operated at Kanpur and Delhi for the year of 2015 and 2018 respectively during the winter season. The mean mass absorption cross-section values (MAC781) for Delhi was slightly higher than that of Kanpur (11.04 m2/g, 10.1 m2/g respectively) during the sampling period. The relative lower mode BC number size distribution at Delhi suggested the presence of nearby BC sources in Delhi than Kanpur. In addition, the higher variability in the BC number to mass ratio indicates the heterogeneity in the BC sources in Delhi than Kanpur.