Polyciclic aromatic hydrocarbon in urban aerosol
| Autor: | Ezio Bolzacchini, G. Mognaschi, V. Gianelle, Maria Grazia Perrone |
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| Přispěvatelé: | Perrone, M, Bolzacchini, E, Gianelle, V, Mognaschi, G |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
Fluid Flow and Transfer Processes
chemistry.chemical_classification Atmospheric Science Environmental Engineering Chemistry business.industry Mechanical Engineering Fossil fuel Mineralogy PAHs particulate matter atmospheric urban pollution traffic source Particulates Combustion Pollution Aerosol Adsorption Mutagenic potency CHIM/12 - CHIMICA DELL'AMBIENTE E DEI BENI CULTURALI Environmental chemistry polycyclic compounds business Aromatic hydrocarbon Pyrolysis |
| Popis: | INTRODUCTION Polyciclic aromatic hydrocarbons (PAHs) are produced by high-temperature reactions such as incomplete combustion and pyrolysis of fossil fuels and other organic materials. Studies have estimated that mobile sources are the major contributors to PAHs content of urban and suburban aerosol (Nielsen T., 1996). High concentrations of PM10 are associated to adverse health effects and PAHs, primarily adsorbed to fine particles, account for most of the mutagenic potency that can be assigned to specific compounds (Hanningan et al., 1998). PAHs can be found both in the gas and in the particulate phase, and for more volatile PAHs this is a function of temperature: PAHs with a higher molecular weight, which are more toxic, are always primarily associated with particulate phase (e.g B[a]P more than 90% in the particulate phase) (Odabasi M., 1999) |
| Databáze: | OpenAIRE |
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