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  • 1 Institute of Nuclear Research, Hungarian Academy of Sciences P.O.Box 51, H-4001 Debrecen, Hungary
  • 2 Institute of Nuclear Research, Hungarian Academy of Sciences P.O.Box 51, H-4001 Debrecen, Hungary
  • 3 Institute of Nuclear Research, Hungarian Academy of Sciences P.O.Box 51, H-4001 Debrecen, Hungary
  • 4 Institute of Nuclear Research, Hungarian Academy of Sciences P.O.Box 51, H-4001 Debrecen, Hungary
  • 5 Institute of Nuclear Research, Hungarian Academy of Sciences P.O.Box 51, H-4001 Debrecen, Hungary
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Summary  

Thirty-seven episodes of dust intrusion were observed between February 12, 1991 and August 31, 2000 in the Hungarian atmosphere and found to be of Saharan origin. They have been assigned to typical source areas in Northern Africa selected by systematic investigations related to the Mediterranean Basin. Elemental concentrations and regional signatures deduced from PIXE analysis, total suspended particle mass, and black carbon mass have been measured on dust samples collected in Debrecen, Hungary. These data combined with Aerosol Index data, and dust plume axes obtained from TOMS data from NASA satellites were used for assigning the most probable source areas of the dust transported to the sampling site. Our data and conclusions are in accordance with other published investigations on the predominant role of Saharan dust emission in building up the aerosol load of the global atmosphere.