| Over a period of eight months, a total of 26 atmospheric particulate matter samples were collected at the location of Tahiti and in other areas of French Polynesia, using a specially equipped sailboat. A 6-stage cascade impact or was used to separate aerosols in the following size classes: > 4,2-4, 1-2,0.5-1,0.25-0.5 and < 0.25 µm equivalent aerodynamic diameter. The resulting set of 156 size segregated aerosol samples was analyzed by particle-induced X-ray emission for 16 elements. This study deals with the concentrations of Na, Mg, Al, Si, S, Cl, K, Ca, Ti, Mn, Fe, Cu, Zn, Br, Sr and Pb. Enrichment factor calculations reveal that Na, Mg, S, A, K, Ca and Sr were little fractionated with respect to bulk sea water, whereas Al, Si, Ti, Mn and Fe... |
