Ambient particles PMx, depending on their nature, have very different size, composition and morphology and direct effects on human health. By these criteria it is possible to distinguish their physical and chemical composition, the emitting sources (primary or secondary) and to assess the risks for human health. These dimensional and morphological characteristics could be related with the nature of the particles, due to the different possible formation pathways (chemical reaction in atmosphere, nucleation, condensation, coagulation and cloud processes).This study is focused on detailed characterization of PM on filters by the application of Scanning Electron Microscopy technique together with the implementation of image analysis procedure to compute dimensional and morphological parameters that were useful to PM characterization and classification.
Particulate matter 3D dimensional and morphological characterization
CIULLI, ENRICO;TOGNOTTI, LEONARDO
2006-01-01
Abstract
Ambient particles PMx, depending on their nature, have very different size, composition and morphology and direct effects on human health. By these criteria it is possible to distinguish their physical and chemical composition, the emitting sources (primary or secondary) and to assess the risks for human health. These dimensional and morphological characteristics could be related with the nature of the particles, due to the different possible formation pathways (chemical reaction in atmosphere, nucleation, condensation, coagulation and cloud processes).This study is focused on detailed characterization of PM on filters by the application of Scanning Electron Microscopy technique together with the implementation of image analysis procedure to compute dimensional and morphological parameters that were useful to PM characterization and classification.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
