|
|
|
| Registros recuperados: 125 | |
|
| |
|
|
| Cesar,Augusto; Abessa,Denis Moledo de Souza; Pereira,Camilo Dias Seabra; Santos,Aldo Ramos; Fernández,Nuria; Choueri,Rodrigo Brasil; DelValls,Tomas Angel. |
| In this work, multivariate and numeric methods were used to integrate the chemical and ecotoxicological data obtained for the sediments from the Santos Estuarine System, and for the vicinity of the discharges of the Submarine Sewage Outfall of Santos, in order to establish more accurately the environmental risks, identify the priority areas and thus provide guidance to control the programs and public policies. For both the datasets, the concentrations which exceeded numeric sediment guidelines tended to be associated to toxicity. For the estuary, this trend was corroborated by the correlations between the toxicity and Cu and PAHs levels, whereas for the sewage outfall region, this was observed through the correlation between the toxicity and Hg contents.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sediment; Contamination; Toxicity; Tiburonella viscana; Environmental risk assessment. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100028 |
| |
|
| |
|
| |
|
| |
|
|
| Rodrigues,Carla Susana; Sá,Cláudia Valéria Gonçalves Cordeiro de; Melo,Cristiano Barros de. |
| ABSTRACT: Listeria monocytogenes is a relevant foodborne pathogen in public health, responsible for outbreaks of listeriosis often associated to the consumption of ready to eat meat, dairy and fishery products. Listeriosis is a serious disease that can lead to death and mainly affect children, the elderly and immunocompromised individuals. In pregnant women causes abortion or neonatal listeriosis. In Brazil, ready to eat food are appreciated and increasingly consumed by the population. Furthermore, products such as sausages, bologna, hams and cheeses have characteristics such as pH, Aw and sodium chloride content that favor the development of L. monocytogenes during their shelf life. The purpose of this paper was to present an overview of L. monocytogenes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Food safety; Ready to eat; Contamination; Listeriosis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200452 |
| |
|
|
| Courrat, A.; Lobry, Jeremy; Nicolas, D.; Laffargue, Pascal; Amara, R.; Lepage, M.; Girardin, M.; Le Pape, O.. |
| Estuaries serve as nursery grounds for many marine fish species. However increasing human activities within estuaries and surrounding areas lead to significant habitat loss for the juveniles and decrease the quality of the remaining habitats. This study is based on the data of 470 beam trawls from surveys that were conducted in 13 French estuaries for the purpose of the European Water Framework Directive. It aimed at testing the effects of anthropogenic disturbances on the nursery function of estuaries. With a multispecific approach based on ecological guilds, two fish metrics, abundance and species richness of Marine juvenile migrant fishes, were used as proxies for the estuarine nursery function. Indices of heavy metal and organic contaminations were... |
| Tipo: Text |
Palavras-chave: Contamination; Anthropogenic disturbances; Fish indicators; Estuaries; Nursery grounds; Essential fish habitat. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6291.pdf |
| |
|
|
| Albuquerque,Cynthia Cavalcanti de; Camara,Terezinha Rangel; Mariano,Rosa de Lima Ramos; Willadino,Lilia; Marcelino Júnior,Cristiano; Ulisses,Cláudia. |
| Antimicrobial activity of the essential oil (EO) of Lippia gracilis Schauer over fungi and heliconia endophytic bacteria was evaluated. For the fungi Geotrichum candidum; Trichoderma viride; Torula herbarum; Paecillomyces sp.; Fusicoccum sp.; P. aeruginens; Curvularia lunata; Aspergillus nidulans; A. flavus; and A. niger mycelial discs were inoculated in PDA medium with oil (0; 420; 440; 460; 480 e 500 µL L-1). The inhibition percentage in 420 µL L-1 was 100% for all fungi, except for C. lunata and A. niger, which was 95.58% and 89.40% , respectively. In other experiment, a suspension of the Salmonella choleraceuis-diarizonae, Enterobacter asburiae, Bacillus thuringiensis, B. pumilus, B. cereus, Klebsiella pneumoniae, and E. hormaechei was individually... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Micropropagation; Contamination; Monoterpenes. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000500001 |
| |
|
| |
|
|
| Piriou, Jean-yves; Droit, Julie. |
| L'estuaire de la Penzé (nord-Finistère, France) est le siège de plusieurs dysfonctionnements de type biologique (eutrophisation et contaminations bactériennes) qui nécessitent une bonne connaissance et un suivi des apports d'origine terrigène susceptibles d'influencer ou de provoquer ces phénomènes. Une étude sur ce secteur test a permis la mise au point d'une méthodologie de suivi des apports à l'estuaire. Celle-ci se fait en quatre étapes: 1. Inventaire des paramètres de suivi des apports. • Dans le cas de la prolifération des macroalgues du genre ulva et des microalgues toxiques Alexandrium minutum, les différents apports nutritifs azotés, phosphorés et siliceux ont été mesurés. • Dans le cas de la contamination des mollusques bivalves d'ostréiculture... |
| Tipo: Text |
Palavras-chave: Apports; Bactéries; Bassins versants; Contamination; Eutrophisation marine; Rejets; Sels nutritifs. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00105/21660/19241.pdf |
| |
|
| |
|
|
| Dromard, Charlotte; Bodiguel, Xavier; Lemoine, Soazig; Bouchon-navaro, Yolande; Reynal, Lionel; Thouard, Emmanuel; Bouchon, Claude. |
| Chlordecone is an organochlorine pesticide, used in the Lesser Antilles from 1972 to 1993 to fight against a banana weevil. That molecule is very persistent in the natural environment and ends up in the sea with runoff waters. From 2003 to 2013, seven campaigns of samplings have been conducted to evaluate the level of contamination of fish, crustaceans, and mollusks. The present study is the first assessment and the first comparison of the concentrations of chlordecone between marine areas, taxonomic groups, and ecological factors like trophic groups or preferential habitat of fish species. The four most contaminated marine areas are located downstream the contaminated rivers and banana plantations. Crustaceans seemed to be more sensitive to the... |
| Tipo: Text |
Palavras-chave: Chlordecone; Organochlorine pollution; Marine fauna; Contamination; Guadeloupe; Martinique. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00309/41989/41379.pdf |
| |
|
|
| Cairo,Romilda Castro; Silva,Luciana Rodrigues; Andrade,Carol Ferreira de; Barberino,Maria Goreth de Andrade; Bandeira,Antônio Carlos; Santos,Kleber Pimentel; Diniz-Santos,Daniel R.. |
| Milk may represent an important source of infectious agents to hospitalized pediatric patients. To describe the bacterial microflora isolated from the hands, stools, pharynx of all workers at milk kitchens in pediatric hospitals in the city of Salvador, Brazil, as well as in the formulas prepared by them, we carried out this cross-sectional study with all 91 workers from the 20 milk kitchens of all the public and private hospitals in Salvador, Brazil. Hand and pharynx swabs and stool samples were collected from all workers, as well as samples of the milk and formulas delivered by the kitchens. All samples were cultured for the detection of pathogenic and non-pathogenic bacteria. Pathogenic bacteria were isolated from 20 (22.0%) and 8 (8.8%) cultures of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria; Microflora; Hands; Faeces; Pharynx; Milk; Contamination; Hospital; Children. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000300011 |
| |
|
|
| Arantes,Fábio P.; Savassi,Lourenço A.; Santos,Hélio B.; Gomes,Marcos V.T.; Bazzoli,Nilo. |
| The increasing amounts of heavy metals entering aquatic environments can result in high accumulation levels of these contaminants in fish and their consumers, which pose a serious risk to ecosystems and human health. We investigated the concentrations of mercury (Hg), cadmium (Cd), zinc (Zn), chromium (Cr), and lead (Pb) in muscle, liver, and spleen tissues of Pseudoplatystoma corruscans specimens collected from two sites on the Paraopeba River, Brazil. The level of heavy metals concentrations in the tissues was often higher in viscera (i.e. liver and spleen) than in muscle, and thus, the viscera should not be considered for human consumption. Correlations between metal concentrations and fish size were not significant. Although the levels of muscle... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Contamination; Freshwater fish; Heavy metal; Human health. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100137 |
| |
|
|
| Kojadinovic, Jessica; Potier, Michel; Le Corre, Matthieu; Cosson, Richard P.; Bustamante, Paco. |
| Trace elements were analyzed in fish of commercial interest to determine their importance in marine systems of the Western Indian Ocean and their bioaccumulation patterns. The results are equivalent or lower than levels reported in ichthyofauna worldwide. Certain values of muscular Cd, Hg, Pb and Zn were, however, above thresholds for human consumption. Levels varied among tissues, species and fish length, but were seldom influenced by the nutritional condition of the fish, its gender and its reproductive status. Correlations between hepatic Hg and Se levels in Swordfish (r(2) = 0.747) and Yellowfin Tunas (r(2) = 0.226), and among metallothionein linking metals imply the existence of detoxification processes in these species. Level differences between fish... |
| Tipo: Text |
Palavras-chave: Guidelines; Detoxification; Contamination; Fish; Metals. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2490.pdf |
| |
|
|
| Oliveira, Janiffe Peres de; Scherwinski-Pereira, Jonny Everson. |
| The objective of this work was to characterize the biochemically systemic bacterial isolated from banana plants, to evaluate the bacterial sensitivity to antibiotics, and to determine the phytotoxicity of banana shoots during in vitro proliferation. Systemic bacteria belonging to the Klebsiella and Aeromonas genera were isolated from the “Maravilha” (FHIA 01 AAAB), “Preciosa” (PV 4285 AAAB) and “Thap Maeo” (AAB) varieties and were then characterized. Tests of shoot sensitivity to antibiotics were performed, and the minimum inhibitory concentration (MIC) and phytotoxic effects of selected antibiotics to plants were determined. Among the 20 antibiotics evaluated, the strains showed sensitivity to cefaclor, cefalexin, cefalotin, nalidixic acid,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências agrárias Musa spp.; Micropropagação; Contaminação; Controle microbiano. Produção de mudas Musa spp.; Micropropagation; Contamination; Endophytic microorganisms; Antimicrobial control. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/27689 |
| |
|
|
| Faria,Letícia de Abreu; Luz,Pedro Henrique de Cerqueira; Macedo,Felipe Barros; Tonetti,Paulo Sergio; Ferraz,Marcos Roberto; Mazza,Jairo Antônio; Vitti,Godofredo Cesar. |
| ABSTRACT High contents of plant-available selenium in the soil in the form of selenate, resulting from natural or anthropogenic action, jeopardizes agricultural areas and requires research for solutions to establish or re-establish agricultural or livestock operation, avoiding the risk of poisoning of plants, animals and humans. The purpose was to evaluate sulfur sources in the form of sulfate, e.g., ammonium sulfate, calcium sulfate, ferric sulfate, in the remediation of tropical soils anthropogenically contaminated with Se under the tropical forage grass Brachiaria brizantha (Hochst. ex A. Rich.) Stapf cv. Marandu. More clayey soils are less able to supply plants with Se, which influences the effects of S sources, but it was found that high soil Se... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Contamination; Selenate; Remediation; Toxicity. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000601814 |
| |
|
|
| Wernstedt, Kris; Crooks, Lisa; Hersh, Robert. |
| As the third paper in our three-part series on Wisconsin brownfields, this paper reports the results of a survey on the objectives of brownfields redevelopment, constraints to the redevelopment, the role of the state's Department of Natural Resources (DNR), and institutional controls. The 260 survey respondents include elected officials, staff from economic development and planning agencies, attorneys, private sector representatives, and professionals at nonprofit organizations. We find that: 1) respondents value both economic and environmental gains associated with brownfields redevelopment; 2) the high costs of cleanup are the principal barrier to brownfields redevelopment; 3) no single factor stands out as constraining DNR's ability to oversee cleanups;... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Brownfields; Contamination; Hazardous waste; Regulatory reform; Environmental Economics and Policy; Q24; Q28. |
| Ano: 2003 |
URL: http://purl.umn.edu/10443 |
| |
|
|
| Wernstedt, Kris; Hersh, Robert. |
| In this paper, the second installment of our three-part study on the development of brownfields policy in the state of Wisconsin, we use case studies to explore the implementation of the policy at three scales: 1) two statewide initiatives, the Voluntary Party Liability Exemption process and the Sustainable Urban Development Zone program; 2) the efforts of two Wisconsin cities, West Allis and Wausau, to promote brownfields redevelopment across their neighborhoods; and 3) project-specific uses of institutional, regulatory, and financial innovations to encourage the revitalization of specific areas. Throughout the paper, we focus on the role of economic incentives, regulatory flexibility, regulatory structure, and the behavioral culture of brownfields... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Brownfields; Contamination; Hazardous waste; Regulatory reform; Wisconsin; Environmental Economics and Policy; Q24; Q28. |
| Ano: 2003 |
URL: http://purl.umn.edu/10547 |
| |
|
| |
| Registros recuperados: 125 | |
|
|
|
