LIGHT-ELEMENT COMPOSITION OF THE ATMOSPHERIC AEROSOL AT CAPE GRIM (TASMANIA) AND TOWNSVILLE (QUEENSLAND) BY PIXE AND PESA

Aerosols were collected during September 1979 at Cape Grim, Tasmania and at Kissing Point, Townsville, Queensland by six-stage single orifice cascade impactors and stacked-filter samplers. The impactor samples were analyzed by PIXE for 18 elements, among them sulfur. The following elements were detected: C, N, O, Na, Mg, Si, S, Cl, and K. Two airmass types were observed at Cape Grim: purely marine air during south-westerly flow. At Townsville, a period of continental flow brought large amounts of soot carbon from biomass burning to the sampling site.