A survey of the environmental pollutants in the city of Dar es Salaam was conducted. Aerosol sampling was conducted using a Sierra Anderson two way impactor for particles less and greater than 10 microns. Analysis was possible with X-ray fluorescence (XRF) rube excitation. We explore the analytical parameters of the spectrometer and present aerosol results for the months of January and February 1993/94 for cites at the highest points of the Dar es Salaam. The results have local significance but are also compared to international values. Lead values is of the order of 0.004 mg/L for Dar es Salaam (DSM) while World health Organisation (WHO), United States of America (USA), Canada and European Economic Community (EEC) values stands at 0.005 mg/L.