7 documents found, page 1 of 1
Nighttime–daytime PM10 source apportionment and toxicity in a remoteness inland...
Cipoli, Yago Alonso; Alves, Célia; Rapuano, Marco; Evtyugina, Margarita; Rienda, Ismael Casotti; Kováts, Nora; Vicente, Ana; Giardi, FabioThe distribution of daytime and nighttime sources of PM10 collected from January to March 2021 at an urban background site in the city of Bragança, Portugal, was performed using positive matrix factorisation (PMF). Additional data of PM2.5, NOx and meteorological variables were collected to support the interpretations. A solution with 5 factor profiles was found: traffic (33%), dust (24%), biomass burning (21%)...
Assessing the chemical composition, potential toxicity and cancer risk of airbo...
Caumo, Sofia; Yera, Aleinnys B.; Alves, Célia; Rienda, Ismael Casotti; Kováts, Nora; Hubai, Katalin; de Castro Vasconcellos, PérolaIn the vicinity of a petrochemical industrial region in São Paulo, Brazil, PM2.5-bound organic carbon (OC), elemental carbon (EC), polycyclic aromatic hydrocarbons (PAHs), nitro-PAHs, oxy-PAHs, hopanes, and inorganic species were evaluated. Oxidative potential (OP), burden (OB), and Alivibrio fischeri bioluminescence inhibition (AFBIA) assays were conducted to determine the potential health effects of exposure ...
Outdoor charcoal grilling: particulate and gas-phase emissions, organic speciat...
Alves, Célia A.; Evtyugina, Margarita; Vicente, Estela; Vicente, Ana; Gonçalves, Cátia; Neto, Ana Isabel; Nunes, Teresa; Kováts, NoraCharbroiling is a major source of air pollution worldwide. In this study, the particulate and gas-phase emissions from the charcoal lighting phase and during the grilling of meat (pork and rump cap) and fish (sardine and salmon) on an outdoor barbecue grill were characterized. Some gaseous compounds (ethane, hexane, NO2, N2O, SO2, NH3, HCl) did not display significant variations between samples and the backgrou...
In vitro toxicity of particulate matter emissions from residential pellet combu...
Vicente, Estela D.; Figueiredo, Daniela; Gonçalves, Cátia; Lopes, Isabel; Oliveira, Helena; Kováts, Nora; Pinheiro, Teresa; Alves, Célia A.Particulate matter emissions (PM10) from the combustion, in a residential stove, of two commercial brands of certified (ENplus A1) pellets, a non-certified brand and laboratory made pellets of acacia were tested for their ability to induce ecotoxic, cytotoxic, and mutagenic responses in unicellular organisms and a human cell line. Ecotoxicity was evaluated through the Vibrio fischeri bioluminescence inhibition ...
Cooking activities in a domestic kitchen: chemical and toxicological profiling ...
Alves, Célia A.; Vicente, Estela D.; Evtyugina, Margarita; Vicente, Ana M. P.; Sainnokhoi, Tsend-Ayush; Kováts, NoraTo obtain emission factors and cooking-related chemical signatures, a monitoring campaign was carried out in a modern kitchen where different dishes of the Latin cuisine were prepared. Particulate matter (PM10, PM2.5 and PM1) and total volatile organic compounds (TVOCs) were continuously measured. Passive tubes for carbonyls and a high volume PM10 sampler were simultaneously used. PM10 filters were analysed for...
In vitro toxicity of indoor and outdoor PM10 from residential wood combustion
Vicente, Estela D.; Figueiredo, Daniela; Gonçalves, Cátia; Lopes, Isabel; Oliveira, Helena; Kováts, Nora; Pinheiro, Teresa; Alves, Célia A.Particulate matter with aerodynamic diameter < 10 μm (PM10) was collected, indoors and outdoors, when wood burning appliances (open fireplace and woodstove) were in operation. The PM10 ecotoxicity was assessed with the Vibrio fischeri bioluminescence inhibition assay, while the cytotoxicity was evaluated by the WST-8 and lactate dehydrogenase (LDH) release assays using A549 cells. Extracts of PM10-bound polycyc...
Morphological properties, chemical composition, cancer risks and toxicological ...
Alves, Célia; Rienda, Ismael Casotti; Vicente, Ana; Vicente, Estela; Gonçalves, Cátia; Candeias, Carla; Rocha, Fernando; Lucarelli, FrancoFrom a sampling campaign from December 2018 to June 2019, at a traffic and an urban background site in Coimbra, Portugal, two particulate matter (PM10) samples from each month were selected to characterise the morphology by scanning electron microscopy, to determine the organic and inorganic chemical composition by multiple analytical techniques and to assess the ecotoxicity by the Vibrio fischeri bioluminescen...