Abstract
Four Namib soil samples were fractionated by dry sieving and aerosol generation. The elemental composition of the dry sieved fractions was determined by X-ray fluorescence analysis, while the elemental composition of the aerosol fractions was determined by particle induced X-ray emission. The concentration of the elements Al, Si, K, Rb and Sr did not vary with the particle size for the entire particle size range. The concentration of Ca, Ti, Mn, Fe, Y and Zr increased when the particle size decreased. Crustal rock, average soil, bulk Namib soil, the smallest fraction of Namib soil and the aerosol fraction of Namib soil, were compared as reference material for enrichment factor calculations. For some elements the enrichment factor varied significantly depending on the choice of the reference material. The elemental ratios in the mineral aerosol were compared with those in the Namib atmospheric aerosol and this confirmed a marine contribution to S, Cl, and Sr in the Namib aerosol. A comparison with the ratios in aerosol from South America showed the differences which exist in mineral aerosol composition from different regions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
