Human exposure to polycyclic aromatic hydrocarbons (PAHs) in indoor environments can be particularly relevant because people spend most of their time inside buildings, especially in homes. This study aimed to investigate the most important particle-bound PAH sources and exposure determinants in PM2.5 samples collected in 19 homes located in northern Italy. Complementary information about ion content in PM10 was also collected in 12 of these homes. Three methods were used for the identification of PAH sources and determinants: diagnostic ratios with principal component and hierarchical cluster analyses (PCA and HCA), chemical mass balance (CMB) and linear mixed models (LMMs). This combined and tiered approach allowed the infiltration of outdoor PAHs into indoor environments to be identified as the most important source in winter, with a relevant role played by biomass burning and traffic exhausts to be identified as a general source of PAHs in both seasons. Tobacco smoke exhibited an important impact on PAH levels in smokers' homes, whereas in the whole sample, cooking food and natural gas sources played a minor or negligible role. Nitrate, sulfate and ammonium were the main inorganic constituents of indoor PM10 owing to the secondary formation of ammonium sulfates and nitrates.

Cattaneo, A., Fermo, P., Urso, P., Perrone, M., Piazzalunga, A., Tarlassi, J., et al. (2016). Particulate-bound polycyclic aromatic hydrocarbon sources and determinants in residential homes. ENVIRONMENTAL POLLUTION, 218, 16-25 [10.1016/j.envpol.2016.08.033].

Particulate-bound polycyclic aromatic hydrocarbon sources and determinants in residential homes

PERRONE, MARIA GRAZIA;
2016

Abstract

Human exposure to polycyclic aromatic hydrocarbons (PAHs) in indoor environments can be particularly relevant because people spend most of their time inside buildings, especially in homes. This study aimed to investigate the most important particle-bound PAH sources and exposure determinants in PM2.5 samples collected in 19 homes located in northern Italy. Complementary information about ion content in PM10 was also collected in 12 of these homes. Three methods were used for the identification of PAH sources and determinants: diagnostic ratios with principal component and hierarchical cluster analyses (PCA and HCA), chemical mass balance (CMB) and linear mixed models (LMMs). This combined and tiered approach allowed the infiltration of outdoor PAHs into indoor environments to be identified as the most important source in winter, with a relevant role played by biomass burning and traffic exhausts to be identified as a general source of PAHs in both seasons. Tobacco smoke exhibited an important impact on PAH levels in smokers' homes, whereas in the whole sample, cooking food and natural gas sources played a minor or negligible role. Nitrate, sulfate and ammonium were the main inorganic constituents of indoor PM10 owing to the secondary formation of ammonium sulfates and nitrates.
Articolo in rivista - Articolo scientifico
Environmental tobacco smoke; Particulate matter; Polyaromatic compounds; Risk management; Vehicular traffic; Wood burning;
Polyaromatic Compounds; Particulate Matter; Risk Management; Vehicular Traffic; Wood Burning; Environmental Tobacco Smoke
English
16
25
10
Cattaneo, A., Fermo, P., Urso, P., Perrone, M., Piazzalunga, A., Tarlassi, J., et al. (2016). Particulate-bound polycyclic aromatic hydrocarbon sources and determinants in residential homes. ENVIRONMENTAL POLLUTION, 218, 16-25 [10.1016/j.envpol.2016.08.033].
Cattaneo, A; Fermo, P; Urso, P; Perrone, M; Piazzalunga, A; Tarlassi, J; Carrer, P; Cavallo, D
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/134817
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