11 documents found, page 1 of 2
Particulate matter indoors: a strategy to sample and monitor size-selective fra...
Bergmans, Benjamin; Cattaneo, Andrea; Duarte, Regina; Gomes, João F. P.; Saraga, Dikaia; Ródenas, M.; Querol, Xavier; Liotta, L.; Safell, J.Particulate matter (PM) is an important player in indoor air quality. Even though PM limit values are in force for more than a decade in Europe and reference methods are well in place for ambient air, measuring indoor PM concentration still remains a challenge and standardizing a measurement protocol is complex. As people stay most of their time indoors, indoor PM is of great interest in terms of public health,...
Advanced instrumental approaches for chemical characterization of indoor partic...
Duarte, Regina; Gomes, João; Querol, Xavier; Cattaneo, Andrea; Bergmans, Benjamin; Saraga, Dikaia; MAGGOS, THOMAS; Di Gilio, Alessia; Rovelli, SabrinaParticulate matter (PM) is an important player of indoor air quality and a topic of great interest in terms of public health. Deciphering the complex chemical composition of indoor PM is critical to understand the association between particles components and a wide range of adverse health effects. Over the last decades, advanced analytical instrumentation has been produced capable of providing various levels of...
Loadings, chemical patterns and risks of inhalable road dust particles in an At...
Alves, Célia A.; Vicente, Estela D.; Vicente, Ana M. P.; Rienda, Ismael Casotti; Tomé, Mário; Querol, Xavier; Amato, FulvioRoad dust resuspension has a significant contribution to the atmospheric particulate matter levels in urban areas, but loadings, emission factors, and chemical source profiles vary geographically, hampering the accuracy of emission inventories and source contribution estimates. Given the dearth of studies on the variability of road dust, in the present study, an in-situ resuspension chamber was used to collect ...
Characteristics of ash and particle emissions during bubbling fluidised bed com...
Ribeiro, João Peres; Vicente, Estela Domingos; Alves, Célia; Querol, Xavier; Amato, Fulvio; Tarelho, Luís A. C.Combustion of residual forest biomass (RFB) derived from eucalypt (Eucalyptus globulus), pine (Pinus pinaster) and golden wattle (Acacia longifolia) was evaluated in a pilot-scale bubbling fluidised bed reactor (BFBR). During the combustion experiments, monitoring of temperature, pressure and exhaust gas composition has been made. Ash samples were collected at several locations along the furnace and flue gas tr...
Size-segregated particulate matter and gaseous emissions from motor vehicles in...
Alves, Célia A.; Gomes, Joana; Nunes, Teresa; Duarte, Márcio; Calvo, Ana; Custódio, Danilo; Pio, Casimiro; Karanasiou, Angeliki; Querol, XavierIn order to address road traffic emissions, studies need to be performed under realistic driving conditionswhere the input fromother sources isminimised.Measurements in traffic tunnels have been used for quantifying emissions, but so far no study has established emission factors (EFs) for Southern Europe. To fill this gap, a sampling campaign was carried out for one week in the Liberdade Avenue tunnel (Braga, P...
Elements and polycyclic aromatic hydrocarbons in exhaust particles emitted by l...
Alves, Célia A.; Barbosa, Cátia; Rocha, Sónia; Calvo, Ana; Nunes, Teresa; Cerqueira, Mário; Pio, Casimiro; Karanasiou, Angeliki; Querol, XavierThe main purpose of this work was to evaluate the chemical composition of particulate matter (PM) emitted by eight different light-duty vehicles. Exhaust samples from petrol and diesel cars (Euro 3 to Euro 5) were collected in a chassis dynamometer facility. To simulate the real-world driving conditions, three ARTEMIS cycles were followed: road, to simulate a fluid traffic flow and urban with hot and cold start...
Size-segregated chemical composition of aerosol emissions in an urban road tunn...
Pio, Casimiro; Mirante, Fátima; Oliveira, Cesar; Matos, Manuel; Caseiro, Alexandre; Oliveira, Cristina; Querol, Xavier; Alves, Célia; Martins, NatérciaAn atmospheric aerosol study was performed in 2008 inside an urban road tunnel, in Lisbon, Portugal. Using a high volume impactor, the aerosol was collected into four size fractions (PM0.5, PM0.5-1, PM1-2.5 and PM2.5-10) and analysed for particle mass (PM), organic and elemental carbon (OC and EC), polycyclic aromatic hydrocarbons (PAH), soluble inorganic ions and elemental composition. Three main groups of com...
Size-segregated chemical composition of aerosol emissions in an urban road tunn...
Pio, Casimiro; Mirante, Fátima; Oliveira, César João Santos; Matos, Manuel; Caseiro, Alexandre; Oliveira, Cristina; Querol, Xavier; Alves, CéliaAn atmospheric aerosol study was performed in 2008 inside an urban road tunnel, in Lisbon, Portugal. Using a high volume impactor, the aerosol was collected into four size fractions (PM0.5, PM0.5–1, PM1–2.5 and PM2.5–10) and analysed for particle mass (PM), organic and elemental carbon (OC and EC), polycyclic aromatic hydrocarbons (PAH), soluble inorganic ions and elemental composition. Three main groups of com...
Size-segregated chemical composition of aerosol emissions in an urban road tunn...
Pio, Casimiro; Mirante, Fatima; Oliveira, Cesar; Matos, Manuel; Caseiro, Alexandre; Oliveira, Cristina; Querol, Xavier; Alves, Celia; Martins, NaterciaAn atmospheric aerosol study was performed in 2008 inside an urban road tunnel, in Lisbon, Portugal. Using a high volume impactor, the aerosol was collected into four size fractions (PM0.5, PM0.5-1, PM1-2.5 and PM2.5-10) and analysed for particle mass (PM), organic and elemental carbon (OC and EC), polycyclic aromatic hydrocarbons (PAH), soluble inorganic ions and elemental composition. Three main groups of com...
Organic compounds in aerosols from selected European sites – Biogenic versus an...
Alves, Célia; Vicente, Ana; Pio, Casimiro; Kiss, Gyula; Hoffer, Andras; Decesari, Stefano; Prevôt, André S. H.; Minguillón, María Cruz; Querol, XavierAtmospheric aerosol samples from a boreal forest (Hyytiälä, April 2007), a rural site in Hungary (K-puszta, summer 2008), a polluted rural area in Italy (San Pietro Capofiume, Po Valley, April 2008), a moderately polluted rural site in Germany located on a meadow (Melpitz, May 2008), a natural park in Spain (Montseny, March 2009) and two urban background locations (Zurich, December 2008, and Barcelona, February...