Quantitative analysis of airborne breathable particles: A comparison between different analytical techniques

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Abstract

Air samples, collected over 6 months, have been analysed by scanning electron microscopy (SEM) with the aim to characterize quantitatively the airborne particulate in an urban area. Total suspended particulate (TSP) and Pb concentrations (in μg m−3) were estimated by inserting into a simple model the particulate data obtained by SEM.

Daily concentration trends were compared with trends measured by gravimetric (TSP) and atomic absorption spectroscopy (Pb) techniques. The correlation coefficients resulted to be 0.8 for TSP and 0.85 for Pb. These results indicate that SEM can be used to have a good evaluation on pollution by airborne breathable particles.

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