Abstract
Coal mine dusts were investigated by scanning Auger spectroscopy and by means of a surface sensitive thermoluminescence method in order to determine the influence of uncontaminated quartz surfaces on the pathogenic behaviour. Even in the case of a fibrogenic dust no clean quartz surfaces could be observed during scanning Auger line scans and the Auger analysis of single points at a lateral resolution between 0.2 and 0.5 μm. The intensities of the thermoluminescence at 160 K agreed fairly well with the quartz content. These results indicate that reactive clean quartz surface areas, only of submicroscopic dimensions however, were present.
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