The composition of particulate matter in the atmosphere of four major italian towns (Florence, Genoa, Milan and Naples) has been studied with hourly resolution by means of ion beam analysis (IBA) techniques and statistical methods. The aerosol has been collected simultaneously in the four towns during the first weeks of year 2001, by two-stage continuous streaker samplers, which separate and collect the PM10 particulate matter in two fractions. The hourly concentrations in air of about 20 elements have been extracted in the fine and coarse fractions of PM10 by particle induced X-ray (and gamma-ray) emission, PIXE (and PIGE), analysis of about 2700 hourly samples. The coupled use of streaker samplers and IBA techniques made distinguishable time patterns typical of urban environments as well as fast and occasional episodes. Absolute principal component factor analysis (APCFA) and other statistical approaches have been used to obtain a sintetic apportionment of the sources of particulate matter.

Hourly elemental composition and sources identification of fine and coarse PM10 particulate matter in four Italian towns / A. D'ALESSANDRO, F. LUCARELLI, P.A. MANDO', G. MARCAZZAN, S. NAVA, P. PRATI, G. VALLI, R. VECCHI, A. ZUCCHIATTI. - In: JOURNAL OF AEROSOL SCIENCE. - ISSN 0021-8502. - 34:2(2003), pp. 243-259.

Hourly elemental composition and sources identification of fine and coarse PM10 particulate matter in four Italian towns

G. MARCAZZAN;G. VALLI;R. VECCHI
Penultimo
;
2003

Abstract

The composition of particulate matter in the atmosphere of four major italian towns (Florence, Genoa, Milan and Naples) has been studied with hourly resolution by means of ion beam analysis (IBA) techniques and statistical methods. The aerosol has been collected simultaneously in the four towns during the first weeks of year 2001, by two-stage continuous streaker samplers, which separate and collect the PM10 particulate matter in two fractions. The hourly concentrations in air of about 20 elements have been extracted in the fine and coarse fractions of PM10 by particle induced X-ray (and gamma-ray) emission, PIXE (and PIGE), analysis of about 2700 hourly samples. The coupled use of streaker samplers and IBA techniques made distinguishable time patterns typical of urban environments as well as fast and occasional episodes. Absolute principal component factor analysis (APCFA) and other statistical approaches have been used to obtain a sintetic apportionment of the sources of particulate matter.
Particulate matter; Urban pollution; Elemental composition; PIXE; APCFA
Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
2003
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/16921
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