Measurements of black carbon aerosol were collected using a multi-angle absorption photometer (MAAP 5012, Thermo Fisher Scientific, Waltham, MA, USA). Measurements were taken at Cataract Scout Park, Appin, N.S.W. (34°14'42.29"S 150°49'24.97"E) from an inlet 4.8 m above ground level as part of the Characterizing Organics and Aerosol Loading over Australia (COALA-2020) campaign. The instrument was operated using a sample flow rate of 1000 L/hr (16.67 LPM). The inlet was not heated. It was fitted with a PM10 cap, restricting the measured aerosol to diameters less than 10 µm. Measurements are taken at 1-minute time resolution, as reported here. Flagged measurements have been removed, except for the "Temperature error" flag. This flag was persistent throughout the campaign and relates to the use of a non-heated inlet. Measurements below 0.0005 ug/cm3 have been removed as this is below the detection limit of the instrument. Instrumental details and calculation of aerosol absorption coefficient can be found in Petzold et al. (2002).

Empty cells = ndCOALA-2020 was funded by Australia's National Environmental Science Program through the Clean Air and Urban Landscapes hub