Caractérisation et identification de la variabilité temporelle des sources de particules dans un environnement intérieur : approche statistique
Résumé
Particle number concentration (particles 0.3-20 μm in aerodynamic diameter) and CO2 concentration were monitored in an office occupied by one adult during 45 days. The temporal characterization and source identification of indoor particulate matter were studied using principal component analysis (PCA) and Independent Component Analysis (ICA). The resulting temporal profiles were explained by relating the calculated source contributions to the information provided by the autocorrelation function. Four particle sources were identified and characterized. The source of 3,5-8,75 μm diameter particles was associated with occupant activity. A random emission source was found to be associated with the larger particles and one continuous emission source was associated with the fine particles.
Domaines
Sciences de l'environnementOrigine | Fichiers produits par l'(les) auteur(s) |
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