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Quantification of organic carbon from biomass versus non-biomass burning emissions to fine aerosol

In the present study, size-segregated aerosol samples (in five size ranges) were collected from Patiala (30.33°N, 76.40°E; 250m amsl), located in the northwestern Indo-Gangetic Plain (IGP) during October 2012 to September 2013 to quantify the contribution of biomass burning (BB) to ambient organic carbon (OC) in fine aerosol. All of these samples were analyzed for major inorganic ions, whereas, particulate matter smaller than 1 μm aerodynamic diameter (PM1) were also analyzed for carbonaceous aerosol (OC, elemental carbon (EC), and water-soluble organic carbon (WSOC)). The contribution of BB