title: Automotive shredder residue: a survey of the hazardous organic micro-pollutants spectrum in landfill biogas.
abstract: In this study, we report an extensive set of analytical results on the quality of the biogas produced by a landfill of automotive shredder residues. In particular, the investigation was directed towards the identification of a spectrum of polycyclic aromatic hydrocarbons (16 compounds) and a wide range of volatile organic compounds (35 compounds). This article highlights the most important indications of toxicological concern for the detected compounds. Among the polycyclic aromatic hydrocarbons, chrysene shows the highest concentration, followed by pyrene and benzo(b)fluoranthene. Dibenz(a,h)anthracene, the most carcinogenic of the tested compounds, displayed results below the limit of analytical detectability. Benzo(a)pyrene, another typical carcinogenic compound, was detected at low concentrations. With regard to volatile organic compounds, the survey revealed a relevant concentration of toluene (found in fuels and paint thinner) significantly higher than the other compounds. Noticeable amounts of hexane, trichloromethane, and acetone were also found.
authors.affiliation: Department of Chemistry, Materials and Chemical Engineering, Politecnico di Milano, Milano, LIUC of Castellanza, Italy.
authors.forename: Massimo
authors.initials: M
authors.lastname: Raboni
authors.affiliation: Department of Biotechnologies and Life Sciences, University of Insubria, Varese, Italy vincenzo.torretta@uninsubria.it.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Torretta
authors.affiliation: Department of Biotechnologies and Life Sciences, University of Insubria, Varese, Italy.
authors.forename: Giordano
authors.initials: G
authors.lastname: Urbini
authors.affiliation: Department of Civil and Environmental Engineering, University of Roma La Sapienza, Italy.
authors.forename: Paolo
authors.initials: P
authors.lastname: Viotti
mesh_terms: D001336:Automobiles; D056804:Biofuels / Q000032:analysis*; D007220:Industrial Waste / Q000032:analysis*; D007558:Italy; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D055549:Volatile Organic Compounds / Q000032:analysis*; D064091:Waste Disposal Facilities; D018505:Waste Management
chemical_list: D056804:Biofuels; D007220:Industrial Waste; D011084:Polycyclic Aromatic Hydrocarbons; D055549:Volatile Organic Compounds
keywords: Automotive shredder residue; car fluff; landfill; polycyclic aromatic hydrocarbon; volatile organic compound