SHORT-RANGE TRANSPORT OF AEROSOLS EMITTED BY A POINT SOURCE OF MIXED CHARACTER IN COMPLEX TERRAIN

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Abstract
Proton Induced X-ray Emission (PIXE) analysis has been performed to determine the longitudinal distribution of coarse- and fine-fraction as well as total aerosol concentrations at ground level in the neighbourhood of a single emission source situated in a valley in complex terrain. Average environmental impact on the quality of air can be guessed by the comparison of the total .concentration data obtained in two sampling stations with those of a reference background sampling station. Transport properties in the terrain were derived by comparing the measured distributions to the one calculated from a simplified version of the Gaussian plume formula apt for modelling short distance transport over a plane area.

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