Tim Jones and Alex O'Connell, James Landale, Tunku Varadarajan, Helen Johnstone, Robert Cole, Michael Aylwin, Chris Ward, Alexandra Frean, Rob Hughes, Andrew Laurie, Richard Ford, Home Correspondent, Perry Anderson, Simon Barnes, Helga Harrison, Mark Souster, Harold Dyke, David Rhys Jones, Richard Hobson, M. J. Burchell, Ivo Tennant, Philip Howard, Hannah Betts, Tony Pearson, Ian Murray, William Hamilton, Michael Binyon, Christine Buckley Industrial Correspondent, Robert Sheehan, Bridge Correspondent, Joe Joseph, Giles Coren, Arthur Leathley, Aviation Correspondent, M. D. Wicks, Dominic Walsh, Ruth Gledhill, Shirley English, Alasdair Reid, Dr Robert C. Atkins, Raymond Keene Chess Correspondent, Nicholas Booth, Rachel Kelly, James Benson, Peter Waymark, Alan Hamilton, Ian Murray, Medical Correspondent, Brian Wilson, Michael Horsnell and Peter Foster, Michael Clark, Gerry Hanson, Janet Bush, Roland Watson, Anna Blundy, David Hands, Katherine Bergen, James Mottram, Simon Tait, Jasper Gerard, Nigel Williamson, Daniel McGrory, Michael Theodoulou, Carol Midgley Media Correspondent, Richard Cookson, Barry Millington, Ian Rae, Jim Duffy, Raymond Keene, Alan Lee, Cricket Correspondent, John Russell Taylor, Matt Dickinson, Penny Hughes, Chairman, Senay Boztas, Alix Ramsay, Neil Roberts, Chris Partridge, Nigel Hawkes, George Engle, Caroline Merrell, Adam Barnard, Carl Mortished, International Business Editor, Bronwen Maddox, Jill Sherman, Damian Whitworth, Roger Boyes, Oliver August, Ian Murray Medical Correspondent, David Hands Rugby Correspondent, Richard Duce, Agence France-Presse, Giles Whittell, Ben Wakeham, Alan Copps, Norman Sanders, Janet Bush and Richard Miles, Christopher Walker, Simon De Bruxelles, Chris Parker, Nan Miller, Jason Nissé, Gerald Larner, Deborah King, Gavin Hadland, Chris McGrath, George Caulkin, Barrie Jenks, Russell Jenkins, Ben MacIntyre, Richard Miles, Fraser Nelson, Kenny MacLver, A. D. Gatling, Martin Waller, Michael Horsnell, Chris Ayres, Carl Mortished International Business Editor, Daniel Rosenthal, Benedict Nightingale, Dr Thomas Stuttaford, Andrew Turner, Marianne Curphey, Michael Henderson, Susan MacDonald, George Christodoulou, Roger Howard, David Carvel, Susie Steiner, Jan Raath, Michael Harman, Christopher Irvine, Christine Buckley, Industrial Correspondent, Joanna Coles,
... s Rising stars in the arts firmament " Simone Rebello Great British Hopes A masterclass from the Mayas ... Recruitment Consultants Crone Corkill Directors' Secretaries Multilingual creme Angela Mortimer International German Thorman Hunt & Co Ltd Multiple ...
1999 - Gale Group | TDA
Produção Nacional
Revisado por pares
Simon Arras Acebal, Angela de Luca Rebello,
Abstract Lead was determined in polluted tropical sea water by anodic stripping voltammetry in the differential pulse and linear sweepl modes. The quantitative implications of heavy metal determination in polluted sea water and some electrochemical parameters concerning the two voltammetric modes are discussed, as well as the efficiency of the hanging mercury drop mercury film electrodes. Values found for the total lead concentration range between 0.07 and 5.4 μg kg −1 . Some data are also presented ...
Tópico(s): Analytical Chemistry and Sensors
1983 - Elsevier BV | Analytica Chimica Acta
George Cole, John de Visser, Barbara Hall, Dan Cruickshank, Adrian Room, Mike Graham, Alasdair Riley, Paul Nelson, James Dairymple, Alexandra Frean, Toresa Gorman, Rob Hughes, John Peter, Mark Bryant, Andrew Grice Political Correspondent, Susan Hill, Eric Dymock, Roger La Borde, Fiona Walsh, Peter Heinze, Graham Rose, Diana Wright Personal Finance Editor, Alistair Scott, Michael Durham Social Affairs Correspondent, Robert Burchfield, Steve Clarke, Arthur Appleton, Nick Pitt, Jason Tomas, Edward Welsh, Adam Spiegel, Geordie Greig, Tony Allen-Mills, Patrick Stoddart, Philip Hoare, Marie Lamoche, Robert Sandall, Roger Grazebrook, Iain Johnstone, Peter O'Sullevan, Hervör ÁGústsson, John Major, Irwin Stelzer, Ivan Fallon, David Dougill, Cliff Temple, Shena Mackay, Ian Glover-James Diplomatic Correspondent, Harvey Porlock, Hugh Canning, Margarette Driscoll, Colin Dryden, H C Robbins, Susan Crosland, David Cairns, John Melmoth, Tony Mooney, Fiona Walsh Assistant City Editor, Dr Jim Swire, Robert Harris, Paddy Ashdown, Arne Lapidus, George Perry, John Cassidy, Sue Mott, Robin Marlar, Mark Skipworth, Jonathan Bastable, Norman Lamont, Margaret Thatcher, Christine Toomey, Garry O'Connor, Bernard Cafferty, Colin Thubron, Gina Kolata, Stuart Wavell, Roger Eglin, Paul Donovan, Huston Horn, William Shawcross, Paul Fussell, Jeff Randall, Dr Walter Magrutsch, Neil Spilman, Boris Schapiro, David Hughes, Tim Rayment, Rufus Olins, Anne Williams, Andrew Neil Editor The Sunday Times, H Lowe, Jean Denton, Hugh Aldersey-Williams, Maria Laura, Alistair Grant, Charles Hymas Education Correspondent, Brian Reading, Brian Foster, Christopher Ward, John Karter, M Wishner, Antony Whitaker, Kate Saunders, Malcolm Winton, Fred Trueman, Diana Wright, Chris Partridge, Stephen Jones, Sean Wood, Desmond Shawe-Taylor, Harry Mullan, Clive Barda, Andrew Grice, Roland Rench Chairman, Jeremy Lewis, Martin Searby, Keith Wheatley, Rob Ryan, Miranda Seymour, Ian Birrell, Anthony Quinn, Lisa O'Kelly, Patrick Rowley, Alan Walker, Peter Plani, Colin McDowell, Bryan Appleyard, Albery Theatre, Barbara Erskine, Ian Glover-James, John Waugh, Norman Stone, Clive Everton, Richard Woods, Mitchell Symons, Andrew Lorenz Business Editor, Brian MacArthur, Douglas Hurd, Rebecca Fowler, Michael Jones Political Editor, Lord St. John, Andrew Yates, David Hunn, James Blitz, Clare Medwin, Angela Neustatter, Godfrey Smith, Michael Austin, Andrew Alderson, Paul Barker, Brian Glanville, Stan Levenson, Brian Clarke, John Carey, Norman Macrae, Chris Dighton, J Maybury, Brig Patrick Cordingley, Helen Pickles, Peter Guttridge, Georgina Howell, Simon Jenkins, Godfrey Golzen, Norman Tebbit, David H Wells, Donald Cook, Gareth David Deputy City Editor, Andrew Lorenz, Tess Knighton, David Wickers, Benedict Nightingale, Antonio de Almeida, Sam Brown, Sam Kiley, Marina Vaizey, Chris Lightbown, Jeff Randall City Editor, Andrew Davidson, Paula Reed, Margaret Park, J Matthews, Neil MacLean, Penny Perrick, Tony Hetherington, Anthony Howard, Peter Roebuck, Joanna Simon, Susan D'Arcy, James Adams Defence Correspondent, Leslie Geddes-Brown, N I Attallah,
... Hitchcock and the Making of Psycho by Stephen Rebello Marion Boyars £14.95 pp224 Dreaming of decadence ...
1990 - Gale Group | Sunday Times HA GDA
Produção Nacional
Revisado por pares
Angela de Luca Rebello, Friedrich Wilhelm Herms, K. Wagener,
The concentration of iodate and iodide were independently determined in seawater samples from Guanabara Bay (Rio de Janeiro, Brazil) taken at depths from 0.15 to 5 m (which was almost the bottom), at various times of day and in three different seasons. The ratio of the two species varied between 0.3 and 3.9, and their concentrations changed at rates of the order of 10 μM h−. This is about two orders of magnitude faster than can be expected from fluxes from sediments. These rates of variation were ...
Tópico(s): Radioactive contamination and transfer
1990 - Elsevier BV | Marine Chemistry
Louis Blom-Cooper, Liz Dolan, John Terraine, Paul Heiney, Sara Jane Checkland, Tony Travers, Clifford Longley, Martin Fletcher and Paul Adams, Fred Wright, M. F. Cullis, Philip Gross, Anthony Maggs, Simon Barnes, B. M. Lahee, Bill Frost, S. J. C, Sheila Gunn, Political Correspondent, Norman Howell, Angela MacKay, Ross Tieman, Industrial Correspondent, Philip Howard, Laura Thompson, Adam Taussik, Ian Murray, Tom Gibb, Clive Davis, Melinda Wittstock, Media Correspondent, Lynne Truss, Wolfgang Münchau, European Business Correspondent, Albert Dormer, Richard Streeton, Liz Smith, Fashion Editor, Geoff Brown, Gerald Davies, Ray Clancy, Joe Joseph, Michael Seely Racing Correspondent, Martin Fletcher, Peter Davenport, Stewart Tendler Crime Correspondent, Peter Stothard, US Editor, Raymond Gubbay, Hugh Leggatt, Ivor Crewe, Wrenbury, Anne Caborn, Christopher Price, Ray Kennedy, Anthony Quinton, Martin Cropper, Alan Hamilton, Michael Clark, Antony Gold, Byron Rogers, Frances Bissell, David Hands, John Percival, Vivien Asquith, J. R. Lowerson, Graham Wood, Quentin Cowdry Home Affairs Correspondent, Robert Cockburn, C. Lancaster, Harvey Elliott, Air Correspondent, Gavin Bell, Peter Birch, Douglas Broom Local Government Correspondent, George Brock, Sydney Friskin, Raymond Blackburn, Martin Hoyle, William Jackson, Gillian Bowditch, (Michael Phillips), David Powell Athletics Correspondent, Hugh Hanning, Eluned Price, Lindsay Cook, Money Editor, Kerry Gill, Raymond Keene, Jonathan Prynn, John Russell Taylor, Craig Brown, Alix Ramsay, Paul Griffiths, E. Rosenstiel, Peter Bryan, Liz Gill, Martin Fletcher and Bruce Clark, G. A. Goodeve, Alice Thomson, Megan Tresidder, Craig Seton, Jill Sherman, Marc Weller, N. R. MacNICOL, William Cook, C. L. Torrero, M. G. Griffith, Betty Powell, Brian Beel, Keith MacKlin, E. Halton, Richard Duce, Christopher Thomas, Sir Christopher Hogg, Joanna Pitman, Ross Tieman Industrial Correspondent, Sara McConnell, G. Ellenbogen, George Hill, Colin Narbrough, Economics Correspondent, Sean O'Hagan, Clive White, Richard Ford and Douglas Broom, Michael Seely, Gillian E. Balmforth, Walter Gammie, Helen Pridham, Peter Victor, John Herbecq, John C. de la T. Davies, J. W. Saunders, Mark Le Fanu, David Sinclair, Michael Horovitz, Michael Binyon, Diplomatic Editor, Charles Hennessy, Hamilton of Dalzell, Benedict Nightingale, Margaret Wiedemann, Richard Morrison, Michael Evans, John Phillips, Tamara Stokes, Harvey Elliott Air Correspondent, Matthew Bond, Colin Campbell, Susan Ellicott, Judy Froshaug, David Hands, Rugby Correspondent, Andrew Longmore, Tennis Correspondent,
... Hitchcock and the Making of Psycho By Stephen Rebello Marion Boyars, £14.95 Death of a soldier ...
1991 - Gale Group | TDA
Produção Nacional
Revisado por pares
Constant M.G. van den Berg, Angela de Luca Rebello,
Organic-copper interactions were studied in Guanabara Bay, Brazil, which represents an example of highly productive, polluted, tropical, coastal waters. Copper speciation was measured by cathodic stripping voltammetry and ligand competition with catechol. The ligand concentrations detected were high and varied between 40 and 300 nM, with conditional stability constants, log K′ values, for complexes with copper varying between 9.6 and 12.4. The organic copper in most samples amounted to 99.5–99.9% ...
Tópico(s): Environmental Toxicology and Ecotoxicology
1986 - Elsevier BV | The Science of The Total Environment
Produção Nacional
Revisado por pares
Angela de Luca Rebello, W. Haekel, Júlio Cezar Fornazier Moreira, Ricardo Erthal Santelli, Frank C. Schroeder,
The scope of this work is the study of the distribution and accumulation of Cu, Cr, Cd, Pb and Hg in waters and sediments from Guanabara Bay, Rio de Janeiro. An attempt was made to balance removal to the sediments and outputs from the bay. Metal contamination in the sediments is only observed at short distances from the identified point sources. In spite of high primary productivity, the sediments are relatively poor in organic carbon content due to intensive respiratory processes already occurring ...
Tópico(s): Water Quality and Pollution Assessment
1986 - Elsevier BV | Marine Chemistry
Produção Nacional
Revisado por pares
R.-D. Wilken, I. Moreira, Angela de Luca Rebello,
The activities of Pb-210 and Cs-137 were measured in a sediment core collected from the north-west region of Guanabara Bay, Brazil. On the basis of Pb-210 geochronology, a sedimentation rate of 2 cm year−1 was estimated for the area in recent times. The Cs-137 activity was below the detection limit (0.2−0.8 mBq g−1) in all depths of the core.
Tópico(s): Geology and Paleoclimatology Research
1986 - Elsevier BV | The Science of The Total Environment
Produção Nacional
Revisado por pares
Angela de Luca Rebello, C.R. Ponciano, Luis Enrique Melges,
Tópico(s): Agricultural and Food Sciences
1988 - Brazilian Academy of Sciences | Anais da Academia Brasileira de Ciências
Produção Nacional
Revisado por pares
Mónica Sánchez‐Román, Judith A. McKenzie, Ângela de Luca Rebello Wagener, Marı́a Angustias Rivadeneyra, Crisógono Vásconcelos,
The hypothesis that sulfate inhibits dolomite formation evolved from geochemical studies of porewaters from deep-sea sedimentary sequences and has been tested with hydrothermal experiments. We examined the sulfate inhibition factor using aerobic culture experiments with Virgibacillus marismortui and Halomonas meridiana, two moderately halophilic aerobic bacteria, which metabolize independent of sulfate concentration. The culture experiments were conducted at 25 and 35 °C using variable SO42− concentrations ( ...
Tópico(s): Methane Hydrates and Related Phenomena
2009 - Elsevier BV | Earth and Planetary Science Letters
Produção Nacional
Revisado por pares
Marcos Antônio dos Santos Fernandez, Aricelso Maia Limaverde, Ítalo Braga Castro, Ana Cristina Almeida, Ângela de Luca Rebello Wagener,
There are indications that the widespread use of organotin compounds (TBT and TPT) as antifoulings, as stabilizers in plastic and as pesticides, has severely affected several species of marine organisms. The most striking effect of TBT and TPT as hormonal disruptors is the development of male organs in females of gastropods, currently denominated imposex. This syndrome can lead to the sterilization and death of affected organisms. The present work gives an overview of the present state of knowledge ...
Tópico(s): Microplastics and Plastic Pollution
2002 - Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz | Cadernos de Saúde Pública
Produção Nacional
Revisado por pares
Ana Claudia M. Brandão, Ângela de Luca Rebello Wagener, Klaus Wagener,
Abstract Model experiments were performed to examine the influence of photochemical and biological processes on the iodine speciation in seawater. Artificial seawater and natural seawater samples were exposed to (1) sun light and (2) intensive UV-irradiation and the iodine speciation was determined. Furthermore, outdoor cultures of unfiltered seawater (slightly fertilized with phosphate and nitrogen) were maintained for 45 h, iodate and iodide concentrations being determined every 3 h. The experiments ...
Tópico(s): Radioactive contamination and transfer
1994 - Elsevier BV | Marine Chemistry
Produção Nacional
Revisado por pares
Juliana Feitosa Felizzola, Ângela de Luca Rebello Wagener, Ana Cristina Almeida, Wei Oh Lin,
Butyltin compounds were investigated in surface sediments from 17 stations in Todos os Santos Bay. Analytical conditions for organotin determination in marine sediments were optimized for GC with pulsed flame photometric detection. Detection limits were: 5.4 µg kg-1 for TBT; 0.2 µg kg-1 for DBT; and 2.1 µg kg-1 for MBT, using a 610-nm filter. In general, TBT concentrations were low and in the range of <DL to 15.9 µg kg-1. Only in one of the investigated stations DBT and MBT were above detection limit ...
Tópico(s): Microplastics and Plastic Pollution
2008 - Brazilian Chemical Society | Química Nova
Produção Nacional
Revisado por pares
Cássia de Oliveira Farias, Cláudia Hamacher, Ângela de Luca Rebello Wagener, Arthur de L. Scofield,
Compositional alterations of oil (MF380) spilled in mangrove sediments was studied over 4 years with an emphasis on weathering of PAH. Sediment cores were sampled yearly in three mangrove forests in Guanabara Bay, Rio de Janeiro, two of which were contaminated by the spill in January 2000 and one was used as a reference area. Hopanes and steranes (46 compounds) were successfully applied to identify the presence of the oil in the most contaminated mangrove (Suruí). However extensive alterations under ...
Tópico(s): Microbial bioremediation and biosurfactants
2008 - Elsevier BV | Organic Geochemistry
Produção Nacional
Revisado por pares
Mónica Sánchez‐Román, Judith A. McKenzie, Ângela de Luca Rebello Wagener, Christopher S. Romanek, Antonio Sánchez‐Navas, Crisógono Vásconcelos,
Tópico(s): Hydrocarbon exploration and reservoir analysis
2010 - Elsevier BV | Geochimica et Cosmochimica Acta
Produção Nacional
Revisado por pares
Ângela de Luca Rebello Wagener, Cláudia Hamacher, Cássia de Oliveira Farias, José Marcus Godoy, Arthur de L. Scofield,
A number of diagnostic ratios have been applied as tools to distinguish provenance of hydrocarbons in sediments. In the present work the effectiveness of such ratios as source indicators under tropical conditions is evaluated using aliphatic and aromatic hydrocarbons determined in recent and historical sediments from the Todos os Santos Bay (TSB), Brazil. It turned out that substantive alteration of the original hydrocarbon composition often produced misleading results and that source evaluation ...
Tópico(s): Microbial bioremediation and biosurfactants
2010 - Elsevier BV | Marine Chemistry
Produção Nacional
Revisado por pares
Adriana Haddad Nudi, Ângela de Luca Rebello Wagener, Eleine Francioni, Carla B. Sette, André Victor Sartori, Arthur de L. Scofield,
Pyrene metabolites in urine and micronucleus in haemocytes of crabs (Ucides cordatus) were tested as biomarkers of exposure to oil derived PAHs in mangrove sediments. The goal was to verify how well pyrene metabolites in urine represent levels of oil contamination in mangroves and whether the micronuclei assay indicates exposure. For this, bioassays were performed using crabs from clean and contaminated areas, and field studies were conducted in four mangroves. Results of the bioassay show that U. ...
Tópico(s): Pharmaceutical and Antibiotic Environmental Impacts
2010 - Elsevier BV | Environmental Research
Produção Nacional
Revisado por pares
Cássia de Oliveira Farias, Cláudia Hamacher, Ângela de Luca Rebello Wagener, Reinaldo Campos‐Vargas, José Marcus Godoy,
The Guanabara Bay in Rio de Janeiro has undergone profound alterations of its natural environmental conditions. Metal concentration increase in sediments has been reported to be among these alterations. Trace-metal contamination and availability were studied in sediments of 3 mangrove areas of the bay. Cd, Zn, Pb, Ni, Cu and Al concentrations were determined in segments of sediment cores, after treatment with 1 mol L-1 HCl and with concentrated HNO3. Fe and Mn were determined in the leach with HNO3. ...
Tópico(s): Heavy metals in environment
2007 - Brazilian Chemical Society | Journal of the Brazilian Chemical Society
Produção Nacional
Revisado por pares
Aricelso Maia Limaverde, Ângela de Luca Rebello Wagener, Marcos Antônio dos Santos Fernandez, Arthur de L. Scofield, Ricardo Coutinho,
Stramonita haemastoma was investigated as a suitable bioindicator of TBT and TPhT contamination in the tropical Atlantic Ocean by: 1. Imposex induction in healthy females after inoculation with TBT and TPhT in the laboratory; and 2. Determining incidence of imposex in S. haemastoma collected from areas with various levels of tributyltin (TBT) and triphenyltin (TPhT) and determining the concentrations of these chemical in its tissues and that of its prey, the mussell Perna pernas. Imposex intensities ...
Tópico(s): Marine Ecology and Invasive Species
2007 - Elsevier BV | Marine Environmental Research
Produção Nacional
Revisado por pares
Ângela de Luca Rebello Wagener, Maria de Fátima Guadalupe Meniconi, Cláudia Hamacher, Cássia de Oliveira Farias, Gilson C. da Silva, Irene Terezinha Gabardo, Arthur de L. Scofield,
Aliphatic hydrocarbons and 39 PAH (parental and alkylated homologs) determined in ca. 100 sediment samples from the Guanabara Bay, Rio de Janeiro, were evaluated for source discrimination using new approaches. Concentrations of total PAH were in the range of 96-135,000 μg kg(-1) similar to other coastal urbanized embayment. Traditional diagnostic ratios were not as efficient PAH source indicators, e.g. biomass combustion was assigned as the major source of the pyrolytic PAH although the hydrographic ...
Tópico(s): Effects and risks of endocrine disrupting chemicals
2011 - Elsevier BV | Marine Pollution Bulletin
Produção Nacional
Revisado por pares
Ângela de Luca Rebello Wagener, Renato S. Carreira, Cláudia Hamacher, Arthur de L. Scofield, Cássia de Oliveira Farias, Lívia G.M.S. Cordeiro, Letícia G. Luz, Aída P. Baêta, Francine A. Kalas,
Waters and sediments from the Potiguar Basin (NE Brazilian coast) were investigated for the presence and nature of polycyclic aromatic hydrocarbons (PAH) and aliphatic hydrocarbons. The region receives treated produced waters through a submarine outfall system serving the industrial district. The total dispersed/dissolved concentrations in the water column ranged from 10–50 ng L−1 for ∑16PAH and 5–10 μg L−1 for total aliphatic hydrocarbons. In the sediments, hydrocarbon concentrations were low (0.5– ...
Tópico(s): Oil Spill Detection and Mitigation
2011 - Elsevier BV | Marine Pollution Bulletin
Produção Nacional
Revisado por pares
Adriana Haddad Nudi, Ângela de Luca Rebello Wagener, Eleine Francioni, Arthur de L. Scofield, Carla B. Sette, Álvaro Veiga,
This study is aimed at verifying the relevance of Ucides cordatus as a bioindicator of oil contamination and PAH bioavailability in mangrove sediments. For this, crabs and sediment cores were sampled from five mangroves, including an area suspected of contamination derived from an MF380 oil spillage, and analyzed for the 16 PAH in the USEPA priority list as well as for the five series of alkylated homologues. Concentrations in sediments varied from 35 μg kg− 1 in the lower core layer of the control ...
Tópico(s): Environmental Toxicology and Ecotoxicology
2006 - Elsevier BV | Environment International
Produção Nacional
Revisado por pares
Eleine Francioni, Ângela de Luca Rebello Wagener, Arthur de L. Scofield, Michael H. Depledge, B. Cavalier, Carla B. Sette, L. Carvalhosa, C. Lozinsky, Rubia Mariath,
The investigation aimed primarily at understanding the PAH record in inter-tidal mussel tissues and evaluating the bivalve performance as a bioindicator for oil contamination. The species Perna perna was used as test organism since it is abundantly distributed in coastal areas of the Americas, Africa and elsewhere. The study was carried out in Guanabara Bay and comprised two observation phases: phase one included seasonal sampling in 8 sites, whereas in phase two 4 sites were examined over 4 years. ...
Tópico(s): Effects and risks of endocrine disrupting chemicals
2006 - Elsevier BV | The Science of The Total Environment
Produção Nacional
Revisado por pares
Eleine Francioni, Ângela de Luca Rebello Wagener, A.L. Scofield, Michael H. Depledge, B. Cavalier,
The mussel Perna perna was used to monitor and assess areas suspected of oil contamination by transplanting animals from unimpacted to impacted sites and vice versa. The deployment lasted for three months during which total PAH were measured in seawater samples collected every 15 days. PAH concentrations were determined in mussel tissue monthly. The lysosomal neutral red assay and the condition index were used as biomarkers of the adverse biological effects. The PAH concentration in mussels at unimpacted ...
Tópico(s): Effects and risks of endocrine disrupting chemicals
2006 - Elsevier BV | Marine Pollution Bulletin
Produção Nacional
Revisado por pares
Eleine Francioni, Ângela de Luca Rebello Wagener, Arthur L. Scofield, B. Cavalier,
The goal of the present work was to test the response of Perna perna to oil contamination in the marine environment. Mussels Perna perna were collected on several occasions from the pillars of Rio-Niteroi Bridge, Guanabara Bay, Rio de Janeiro, including after a major spill of MFO380 in January 2000. Condition index evaluation and neutral red assay were carried out in these mussels, which were also tested for polycyclic aromatic hydrocarbons (PAHs) concentration by using GC/MS. The PAH burden in mussels, ...
Tópico(s): Effects and risks of endocrine disrupting chemicals
2005 - Taylor & Francis | Environmental Forensics
Eleine Francioni, Ângela de Luca Rebello Wagener, Reinaldo de C Calixto, Gildo C Bastos,
Perna perna was collected from several sites along the coast of Rio de Janeiro and analysed for the content of copper, zinc, cadmium and chromium. In spite of the observed concentration variability in organisms pertaining to the same population, statistical evaluation allowed metal level differentiation among regions and sites as well as between males and females. Differences in metal contents did not confirm expectations based on source strength and existing data on water concentration.
Tópico(s): Heavy metals in environment
2004 - Brazilian Chemical Society | Journal of the Brazilian Chemical Society
Produção Nacional
Revisado por pares
Ana Cristina Almeida, Ângela de Luca Rebello Wagener, Cristina Baptista Maia, Norbert Miekeley,
Abstract The contamination of sediments by organotins poses a threat to marine biota that may last long after release of the substances. The determination of tributyltin (TBT) and its decay products in sediment cores allows elucidation of concentration and degradation trends, and is a useful tool to support management decisions. In this study, organotin speciation was performed on cores from several locations in Guanabara Bay, Rio de Janeiro, to investigate contamination trends over the last 30 years ...
Tópico(s): Marine Ecology and Invasive Species
2004 - Wiley | Applied Organometallic Chemistry
Produção Nacional
Revisado por pares
Marcos Antônio dos Santos Fernandez, Ângela de Luca Rebello Wagener, Aricelso Maia Limaverde, A.L. Scofield, Fernanda Mattos Pinheiro, E. Rodrigues,
An integrated biological–chemical survey of organotin compounds was carried out in Guanabara Bay, the second most important Brazilian harbor complex. The biological survey revealed high levels of imposex in Stramonita haemastoma populations. Inside the bay values of relative penis length index from 42.7 to 107.6 and vas deferens sequence index from III to VI were found, while organisms collected outside the bay had values ranging from <0.1 to 35.2 and from 0 to II. None of the females sampled inside ...
Tópico(s): Microplastics and Plastic Pollution
2004 - Elsevier BV | Marine Environmental Research
Produção Nacional
Revisado por pares
Cristiane Ribeiro Mauad, Ângela de Luca Rebello Wagener, Carlos German Massone, Mayara da S. Aniceto, Letícia Lazzari, Renato S. Carreira, Cássia de Oliveira Farias,
Aliphatic (n-C12–n-C40, unresolved complex mixture, resolved peaks) and aromatic hydrocarbons (46 PAH) were investigated in suspended particulate matter (SPM) sampled over eleven months in six of the major rivers and two channels of the Guanabara Bay Basin. PAH flow rates of the most contaminated rivers, the contribution to the PAH sediment load of the receiving bay, and the main sources of hydrocarbons were determined. PAH (38) ranged from 28 ng L− 1 to 11,514 ng L− 1. Hydrocarbon typology and statistical ...
Tópico(s): Oil Spill Detection and Mitigation
2014 - Elsevier BV | The Science of The Total Environment
Produção Nacional
Revisado por pares
Carla B. Sette, Thais Pedrete, Juliana Feitosa Felizzola, Adriana Haddad Nudi, Arthur de L. Scofield, Ângela de Luca Rebello Wagener,
In this study, the development of the technique APCI+ LC/MS/MS allowed the detection of phenanthrene, pyrene and metabolites of alkyl homologs in fish bile (in situ) and in urine of crabs. Laboratory experiments were carried out exposing crabs from an unpolluted mangrove (Barra de Guaratiba) to phenanthrene, and to the alkylated homologs 1-methyl phenanthrene and 2,6,9-trimethyl phenanthrene. Urine samples were collected at 0, 24, 48, 72, and 96 h. Fishes were captured from strategic sites from Guanabara ...
Tópico(s): Toxic Organic Pollutants Impact
2013 - Elsevier BV | Marine Environmental Research