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“Geochemical assessment of a subtropical reservoir : a case study in Curitiba, Southern Brazil”. Godoi RHM, Hirata PY, Bitterncourt AVL, Godoi AFL, Potgieter-Vermaak S, Gatto Rotondo G, Van Grieken R, et al, Clean : soil, air, water 40, 364 (2012). http://doi.org/10.1002/CLEN.201000610
Abstract: Suspended particles and dissolved substances in water provide reactive surfaces, influence metabolic activity and contribute to the net sediment deposition. It therefore plays an important part in the ecology and quality of the water mass. The water quality in reservoirs is crucial and it is naturally maintained by flushing and sedimentation, which continuously remove phosphorus from the water. In some reservoirs, however, these removal processes are countered by recycling of ions which could play a key role to start and/or maintain the eutrophic state. The combination of macro-, trace- and microanalysis techniques can be useful to trace pollution sources through a chemical fingerprint, whether be during an acute environmental disaster or a long-term release of pollutants. The water quality and total metal content of reservoir sediments were assessed in a reservoir, situated in the capital of the Paraná State, in the South-Eastern part of Brazil. The goal of this paper was to determine the metal presence in the sediment and metal and ionic speciation in the Green River reservoir water. Water and bed sediment samples, collected from various sites during 2008 and 2009, were investigated using XRF, ICP-OES, ICP-MS, XRD and zeta potential measurements. Based on the results, the heavy metal concentration and chemical composition of the suspended matter in the water samples, as well as the sediment's chemical composition will be discussed.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1002/CLEN.201000610
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“Cultural heritage research in “The Micro and Trace Analysis Center&rdquo, of the University of Antwerp”. Godoi RHM, Kontozova V, Godoi AFL, Bencs L, Spolnik Z, Janssens K, Van Grieken R, Coalition 7, 11 (2004)
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Assessment of air pollutant levels in some European museums and churches”. Kontozova V, Spolnik Z, Worobiec A, Godoi R, Van Grieken R, Deutsch F, Bencs L page 245 (2005).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
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“Assessment of atmospheric particles emitted from sugar cane burning in Southeast Brazil”. Godoi RHM, Godoi AFL, Andrade SJ, Santiago-Silva M, de Hoog J, Worobiec A, Van Grieken R, Journal od aerosol science , S749 (2003)
Keywords: A3 Journal article; Laboratory Experimental Medicine and Pediatrics (LEMP); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Caracterização dos sistemas iônicos e particulado no reservatório”. Godoi RHM, Bittencourt AVL, Hirata PY, Jafelicci Junior M, dos Reis Neto JM, de Souza Sarkis JE, Zara LF, Van Grieken R page 170 (2011).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“A case study of high-temperature corrosion in rotary cement kilns”. Potgieter JH, Godoi RHM, Van Grieken R, Journal of the South African Institute of Mining and Metallurgy 104, 603 (2004)
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Characterisation of air pollutants in museum showcases”. Kontozova V, Deutsch F, Godoi R, Godoi AF, Joos P, Van Grieken R, (2002)
Keywords: P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Characterization of air pollutants observed in three European cathedrals: is the protective glazing really effective?”.Kontozova V, Godoi RHM, Spolnik Z, Worobiec A, Deutsch F, Van Grieken R, Rivista della Stazione sperimentale del vetro 3, 13 (2005)
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
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“Characterization of the ionic and particulate systems in the reservoir”. Godoi RHM, Lima Bittencourt AV, Hirata PY, Jafelicci Junior M, dos Reis Neto JM, Van Grieken R page 143 (2014).
Keywords: H2 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Les conclusions du programme européen Vidrio sur la protection des vitraux par verrière extérieure”. Pallot-Frossard I, Van Grieken R, Godoi R, Kontozova V, et al, Monumental: revue scientifique et technique , 113 (2007)
Keywords: A3 Journal article; Art; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Effects of air pollution and microclimate on stained glass windows: prliminary results in the Sainte Chapelle (Paris)”. Bernardi A, Becherini F, Kontozova V, Godoi RHM, Van Grieken R, Deutsch F page 133 (2004).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Influence of gaseous and particulate air pollutants on stained glass windows: case study in the Basilica Saint Urbain in Troyes, France”. Kontozova V, Godoi RHM, Spolnik Z, Worobiec A, Deutsch F, Van Grieken R, (2005)
Keywords: P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
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“Investigation of individual particles and gaseous air pollutants in showcases”. Godoi RHM, Kontozova V, Godoi AFL, Van Grieken R page 147 (2004).
Keywords: H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Oszklenie ochronne i jego wpływ na średniowieczne okna witrazowe: z perspektywy chemii atmosfery: studium przypadku kaplica Sainte Chapelle w Paryzu”. Kontozova V, Godoi R, Krata A, Van Grieken R, Analityka , 20 (2007)
Keywords: A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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Chou L, Harlay J, Roevros N, Lannuzel D, Rebreanu L, van der Zee C, Lapernat P-E, Daro M-H, Aerts K, Godoi R, Van Grieken R (2009) Role of oceanic production and dissolution of calcium carbonate in climate change (CCCC): final report
Keywords: Minutes and reports; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Some studies of the effect of indoor and outdoor pollutants on cultural heritage items”. Van Grieken R, Kontozova V, Godoi RHM, Spolnik Z, Worobiec A, Deutsch F, Bencs L, (2005)
Keywords: P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
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“Elemental composition of PM2.5 in Araraquara City (Southeast Brazil) during seasons with and without sugar cane burning”. Silva FS, Godoi RHM, Tauler R, de André, PA, Saldiva PHN, Van Grieken R, de Marchi MRR, Journal of environmental protection 6, 426 (2015). http://doi.org/10.4236/JEP.2015.65041
Abstract: Particulate matter with an aerodynamic diameter below 2.5 μm (PM2.5), present in polluted air, has been associated with a large spectrum of health impairments, mainly because of its deep deposition into the lungs. Araraquara City (Southeast Brazil) is surrounded by sugar-cane plantations, which are burned to facilitate the harvesting; this process causes environmental pollution due to the large amounts of soot that are released into the atmosphere. In this work, the elemental composition of PM2.5 was studied in two scenarios, namely in sugar-cane harvesting (HV) and in non-harvesting (NHV) seasons. The sampling strategy included one campaign in each season. PM2.5 was collected using a dichotomous sampler (10 L·min-1, 24 h) with PTFE filters. Information concerning the bulk elemental concentration was provided by energy-dispersive X-ray fluorescence. Enrichment factor analysis indicated that S, Cl, K, Cr, Ni, Cu, Zn, As, Cd and Pb were highly enriched relative to their crustal ratios (to Al). Principal component analysis was used to get some insight about the sources of the elements. Principal component 1 (PC1) explained 30.5% of data variance. The elements that had high loading (>0.7) were: S, Cr, As, and Pb; these are associated with combustion of fossil fuels. In principal component 2 (PC2), Cl, Cu, Zn, and Cd showed high loadings; these elements are associated with biomass burning. The Ni concentration found is three times larger than the threshold of risk for lung cancer, as recommended by the World Health Organization.
Keywords: A2 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.4236/JEP.2015.65041
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“Mineral dust variability in central West Antarctica associated with ozone depletion”. Cataldo M, Evangelista H, Simões JC, Godoi RHM, Simmonds I, Hollanda MH, Wainer I, Aquino F, Van Grieken R, Atmospheric chemistry and physics 13, 2165 (2013). http://doi.org/10.5194/ACP-13-2165-2013
Abstract: We present here data of mineral dust variability retrieved from an ice core of the central West Antarctic, spanning the last five decades. Main evidence provided by the geochemical analysis is that northerly air mass incursions to the coring site, tracked by insoluble dust microparticles, have declined over the past 50 yr. This result contrasts with dust records from ice cores reported to the coastal West Antarctic that show increases since mid-20th century. We attribute this difference to regional climatic changes due to the ozone depletion and its implications to westerly winds. We found that the diameters of insoluble microparticles in the central West Antarctica ice core are significantly correlated with cyclone depth (energy) and wind intensity around Antarctica.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.5194/ACP-13-2165-2013
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“Mineral dust variability in central West Antarctica associated with ozone depletion”. Cataldo, Evangelista H, Simões JC, Godoi RHM, Simmonds I, Hollanda MH, Wainer I, Aquino FE, Van Grieken R, Atmospheric chemistry and physics discussions 12, 12685 (2012). http://doi.org/10.5194/ACPD-12-12685-2012
Abstract: Here we show that mineral dust retrieved from an ice core in the central West Antarctic sector, spanning the last five decades, provides evidence that northerly air mass incursions into Antarctica, tracked by dust microparticles, have slightly declined. This result contrasts with dust in ice core records reported in West/coastal Antarctica, which show significant increases to the present day. We attribute that difference, in part, to changes in the regional climate regime triggered by the ozone depletion and its consequences for the polar vortex intensity. The vortex maintains the Antarctic central region relatively isolated from mid-latitude air mass incursions with implications to the intensification of the Westerlies and to a persistent positive phase of the Southern Annular Mode. We also show that variability of the diameter of insoluble microparticles in central West Antarctica can be modeled by linear/quadratic functions of both cyclone depth (energy) and wind intensity around Antarctica.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.5194/ACPD-12-12685-2012
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