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The establishment of EVISA is funded by the EU through the Fifth Framework Programme (G7RT- CT- 2002- 05112).

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morphological characterisation

For the morphological characterisation (shape, size, roughness) of individual atmospheric particles, especially of asbestos, mineral fibres and quartz, a scanning electron microscope (SEM), transmission electron microscope (TEM), and a light microscope can be used, as well as quantitative determination of crystalline silica in respirable-size dust samples by infrared spectrophotometry.


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