Atmospheric concentrations of total elements and water-soluble ions measured over coastal Namibia in 2016

Aerosol particles smaller than 10 µm in aerodynamic diameter (PM10) were collected at the Henties Bay Aerosol Observatory (HBAO) in Namibia by an automated sampler (model Partisol Plus 2025i, Thermo Fisher Scientific, Waltham, MA USA) on 47 mm Whatman Nuclepore polycarbonate filters (1-µm pore size). The air was drawn through a certified sampling inlet (Rupprecht and Patashnick, Albany, New York, USA) located at approximately 30 m above ground and operated at a flow rate of 1 m3 h-1. Samples were collected for 9 hours during the daytime (from 9:00 to 18:00 UTC time) and night-time (21:00 to 06:00 UTC time) for 8 non-consecutive weeks from February to October 2016 (24 February-02 March, 16-23 March, 01-09 April, 13-20 May, 20-26 July, 26 August-02 September, 16-23 September, 05-12 October). In total, 128 samples (including 8 blanks, one per week of sampling) were collected. Analysis of those samples are provided in two datasets. The dataset “Namibia_HBAO_elemental_concentrations_2016.txt“ reports the atmospheric concentrations of 24 elements (Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Sr, Pb, Nd, Cd, Ba) obtained by wavelength-dispersive X-ray fluorescence (WD-XRF). The dataset “Namibia_HBAO_water-soluble-ionic_concentrations_2016.txt“ reports the atmospheric concentrations of 16 water-soluble ions measured by Ion Chromatography (IC).