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Registros recuperados: 39
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An in situ intercomparison exercise on passive samplers for monitoring metals, polycyclic aromatic hydrocarbons and pesticides in surface waters ArchiMer
Miege, C.; Mazzella, N.; Schiavone, S.; Dabrin, A.; Berho, C.; Ghestem, J. -p.; Gonzalez, C.; Gonzalez, Jean-louis; Lalere, B.; Lardy-fontan, S.; Lepot, B.; Munaron, Dominique; Tixier, Celine; Togola, A.; Coquery, M..
Tipo: Text Palavras-chave: Intercomparison exercise; Marine Strategy Framework Directive (MSFD); Metal; Passive sampling; Pesticide; Polar organic chemical integrative sampler (POCIS); Polycyclic aromatic hydrocarbon (PAH); Priority chemical; Surface water; Water Framework Directive (WFD).
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00077/18853/16597.pdf
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Barraginhas: realimentação de aquíferos. Infoteca-e
BARROS, L. C. de; RIBEIRO, P. E. de A..
As barraginhas são pequenas bacias escavadas no solo em formato de prato, meia-lua e de arco de flecha, com diâmetro médio de 16 m e profundidade média de 1,2 m. São construídas dispersas nas pastagens, lavouras (no final das curvas de nível) e nas margens de estradas, para captar água de enxurradas, controlando a erosão e conservando a água no subsolo. As barraginhas não devem ser construídas em cursos de água perenes, nas áreas de proteção permanente (APPs), no interior das voçorocas e das grotas e em terrenos com inclinação acima de 12%. Um sistema de Barraginhas construídas em uma microbacia promove a elevação do lençol freático e o umedecimento das baixadas, proporcionando segurança hídrica para lavouras, mesmo em regiões semiáridas. Com a água...
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Barraginha; Captação de água de chuva; Barragem; Açude; Construção Rural; Manejo de Água; Manejo do Solo; Water harvesting; Water reservoirs; Surface water; Rain; Rainfed farming.
Ano: 2017 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1099353
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Campylobacter armoricus sp. nov., a novel member of the Campylobacter lari group isolated from surface water and stools from humans with enteric infection ArchiMer
Boukerb, Amine M.; Penny, Christian; Serghine, Joelle; Walczak, Cécile; Cauchie, Henry-michel; Miller, William G.; Losch, Serge; Ragimbeau, Catherine; Mossong, Joël; Mégraud, Francis; Lehours, Philippe; Bénéjat, Lucie; Gourmelon, Michele.
During a study on the prevalence and diversity of members of the genus Campylobacter in a shellfish-harvesting area and its catchment in Brittany, France, six urease-positive isolates of members of the genus Campylobacter were recovered from surface water samples, as well as three isolates from stools of humans displaying enteric infection in the same period. These strains were initially identified as members of the Campylobacter lari group by MALDI-TOF mass spectrometry and placed into a distinct group in the genus Campylobacter, following atpA gene sequence analysis based on whole-genome sequencing data. This taxonomic position was confirmed by phylogenetic analysis of the 16S rRNA, rpoB and hsp60 (groEL) loci, and an analysis of the core genome that...
Tipo: Text Palavras-chave: Campylobacter; Novel species; Surface water; Coastal catchment; Human gastroenteritis; C. lari group; Whole genorne sequence.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00591/70346/69558.pdf
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Capacity building for participatory irrigation management in Sindh Province of Pakistan. AgEcon
Memon, Yameen; Talpur, Mustafa; Murray-Rust, Hammond.
Tipo: Working or Discussion Paper Palavras-chave: River basins; Institutions; Organizations; Private sector; Public sector; Local government; Mapping; Water resource management; Water policy; Legislation; Rural women; Constraints; Groundwater; Surface water; Water quality; Water use; Water users; Dams; Reservoirs; Large-scale systems; Irrigation management; Industrialization; Case studies; Operations; Maintenance; Canals; Conflict; Farmer-agency interactions; Policy; Water supply; Rural development; Community/Rural/Urban Development; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2001 URL: http://purl.umn.edu/92769
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Características físico-químicas de las aguas del Paso Drake durante el verano 1988 OceanDocs
Allauca, S.; Valencia Trejo, M..
Un análisis de parámetros físicos y químicos se realizó en el Paso Drake en base a datos obtenidos durante el trayecto del BAE ORION hacia y desde la Península Antártica. La investigación efectuada en esta área forma parte de la Primera Expedición Ecuatoriana a la Antártica, realizada durante el verano 1988. Los datos de temperatura medidos con probetas de XBT, proporcionaron una clara visión de la estructura térmica de cada sección hasta los 500 metros. Se determinaron las posiciones de los diferentes Frentes y Zonas tanto por las condiciones subsuperficiales como por sus expresiones superficiales. La presencia de un anillo o masa de agua subsuperficial relativamente fría dentro de la Zona del Frente Polar permite pensar que corresponde a Agua Superficial...
Tipo: Journal Contribution Palavras-chave: Chemical oceanography; Surface water; Surface temperature; Air temperature; Salinity; Nutrients (mineral); Polar fronts; Chemical oceanography; Surface water; Air temperature; Salinity; Http://aims.fao.org/aos/agrovoc/c_1516; Http://aims.fao.org/aos/agrovoc/c_25317; Http://aims.fao.org/aos/agrovoc/c_230; Http://aims.fao.org/aos/agrovoc/c_6751.
Ano: 1989 URL: http://hdl.handle.net/1834/3874
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Chemical composition of phytoplankton from the estuaries of Eastern Amazonia Acta Amazonica
Vilhena,Maria do Perpetuo Socorro Progene; Costa,Marcondes Lima da; Berrêdo,José Francisco; Paiva,Rosildo Santos; Almeida,Pryscila Denise.
Phytoplankton is important bioindicator of chemical and biological modifications of natural ecosystems. The objective of this study was to determine the total chemical composition of the phytoplankton of the Pará and Mocajuba estuaries on the eastern coast of the Amazon region in the Brazilian state of Pará. The chemical composition of the surface water, bottom sediments (total sample and bioavailable fraction), and the phytoplankton were determined by inductively coupled plasma optical emission spectrometry. Phytoplankton contained high concentrations of Ca, P, Mn, Fe, Zn, Al, Ba, and Pb. The phytoplankton of the Mocajuba estuary is rich in Fe (2,967-84,750 µg g-1), while those from the Pará is rich in Al (1,216-15,389 µgg-1), probably reflecting...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sediments; Trace metals; Plankton; Surface water.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000400012
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Comparação entre os Índices de Qualidade de Água Cetesb e Bascarán. Repositório Alice
MENEZES, J. M.; SABINO, H.; CRISTO, V.; PRADO, R. B.; LIMA, L. A. de; DI LULLO, L. B.; SILVA JÚNIOR, G. C. da.
A água é um bem essencial à vida e para muitas atividades econômicas. Contudo, sua degradação ocorre de forma acelerada, tornando-a inutilizável para os múltiplos usos da sociedade. Os municípios fluminenses de São José de Ubá e Itaperuna abrigam a bacia hidrográfica do rio São Domingos (BHRSD) no Rio de Janeiro, que apresenta elevados índices de desflorestamento, presença extensiva de agropecuária, centros urbanos com baixos índices de saneamento básico e intensiva extração de água subterrânea para uso doméstico e irrigação. Diante dessa situação, o presente trabalho tem como objetivo analisar a qualidade da água superficial da BHRSD a partir de dois Índices de Qualidade de Água (IQA): o IQA CETESB e o IQA BASCARÁN. Para tal, amostras de águas...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Índice de Qualidade de Água; Água superficial; Rio de Janeiro; Qualidade da Água; Water quality; Surface water.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1092680
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Conjunctive water management in the Rechna Doab: An overview of resources and issues AgEcon
Jehangir, Waqar Ahmed; Qureshi, Asad Sarwar; Ali, Nazim.
Tipo: Working or Discussion Paper Palavras-chave: Water management; Conjunctive use; Surface water; Groundwater; Aquifers; Pumping; Water quality; River basins; Productivity; Canals; Waterlogging; Salinity; Land resources; Land use; Crop production; Rice; Wheat; Cotton; Sugarcane; Crop Production/Industries; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2002 URL: http://purl.umn.edu/92704
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Cost-benefit analysis of abatement measures for nutrient emission from agriculture AgEcon
Wustenberghs, H.; Broekx, Steven; Van Hoof, K.; Claeys, Dakerlia; D'Heygere, T.; D'Hooghe, J.; Dessers, R.; Huysmans, T.; Lauwers, Ludwig H.; Meynaerts, E.; Vercaemst, P..
In intensive animal husbandry areas surface water N and P concentrations often remain too high. The Water Framework Directive calls for additional nutrient emission abatement measures. Therefore, costs and benefits for possible agricultural measures in Flanders were first analysed in terms of soil balance surplus. Finally, abatement measures for agriculture, households and industry were set off against each other and ranked according to their cost-efficiency by the Environmental Costing Model. Increased dairy cattle efficiency, winter cover crops and increased pig feed efficiency turn out very cost efficient. Other agricultural measures are less cost efficient than for instance collective treatment for households and industry.
Tipo: Conference Paper or Presentation Palavras-chave: Nitrogen and phosphorus abatement; Surface water; Cost efficiency; Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/44245
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Cytotoxic and genotoxic potential of surface water from the Pitimbu river, northeastern/RN Brazil Genet. Mol. Biol.
Egito,Lucila Carmem Monte; Medeiros,Maria das Graças; Medeiros,Silvia Regina Batistuzzo de; Agnez-Lima,Lucymara Fassarella.
In this study, the onion (Allium cepa) root test was used to evaluate the genotoxicity of the Pitimbu River (Natal city, Brazil) surface water. The water was collected at five sampling sites along the river and one sample was obtained after the treatment (flocculation, chlorination and pH correction) of the river water for human consumption. All raw river water samples increased the frequency of chromosomal abnormalities and/or micronuclei and two of the water samples produced alterations in the mitotic index of the root cells. Two of the water samples also altered root growth and two produced morphological modifications in the A. cepa roots. Water collected from a site near an industrial area was the most consistently toxic and genotoxic of the samples....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allium cepa; Micronucleus; Cytotoxicity; Genotoxicity; Surface water.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300023
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Developing realistic exposure scenarios for environmental risk assessment of pesticides in brazilian surface water Repositório Alice
MINGOTI, R.; SPADOTTO, C. A.; BERALDO, G. N.; VALLE, L. B.; BRASCO, M. A.; FARIAS, A. R.; LOVISI FILHO, E..
Standard scenarios increase the consistency of the regulatory evaluation process by minimizing the subjective influence when performing the pesticide environmental concentration - PEC calculation, also make interpretation much easier and enable the adoption of a consistem scientific process for a Tier 1 evaluation (FOCUS, 2000). The brazilian lnstitute of the Environment and Renewable Natural Resources (IBAMA) adopts the United States Environmental Protection Agency (USEPA) methodology (IBAMA. 2016), using the "standard farm pond" scenario (Parker et al., 1995) for surface water in the Tier 1 evaluation and, therefore, it may lead to the registration of pesticides without considering brazilian agricultural scenarios in environmental risk assessment - ERA.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Pesticides; Environmental; Brazilian agricultural; Surface water.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1076468
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Developing realistic exposure scenarios for environmental risk rssessment of pesticides in Brazil: surface water Repositório Alice
MINGOTI, R.; SPADOTTO, C. A.; BRASCO, M. A.; VALLE, L. B.; BERALDO, G. N.; FARIAS, A. R.; LOVISI FILHO, E..
Standard scenarios increase the consistency of the regulatory evaluation process by minimizing the subjective influence when performing the pesticide environmental concentration - PEC calculation, also make interpretation much easier, and enable the adoption of a consistent scientific process for a Tier 1 evaluation (FOCUS, 2000). The Brazilian Institute of the Environment and Renewable Natural Resources (IBAMA) adopts the United States Environmental Protection Agency (USEPA) methodology (IBAMA, 2016), using the ?standard farm pond? scenario (Parker et al., 1995) for surface water in the Tier 1 evaluation, and, therefore, it may lead to the registration of pesticides without considering Brazilian agricultural scenarios in environmental risk assessment - ERA.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Pesticide; Registration of pesticides; Surface water; Environmental risk.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1076506
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Distribution of chlorinated pesticides in surface water and fish of El Temsah and Bitter Lakes, Suez Canal OceanDocs
Said, T.O.; Hamed, M.A..
The potential effect of chlorinated pesticides pollutants carried by El Temsah and Bitter Lakes of the Suez Canal was investigated during four seasons of 2003. The results indicate the presence of total DDTs, total cyclodienes and total Hexachlorocyclohexane (HCHs) in surface water with ranges; 2.76-13.88 ng/l, 3.99-16.39 ng/l, and 0.39-1.25 ng/l, respectively. Total DDTs concentrations were ranged from 161-3100 ng/g (wet weight) with an average of 1087 ng/g (wet weight), while total HCHs concentrations were ranged from 30-1145 ng/g (wet weight) with an average of 316 ng/g (wet weight) recorded in three fish species; Lutjanus sp., R. haffara and S. rivulatus of the investigated area. Concentrations of chlorinated pesticides recorded in both of water and...
Tipo: Journal Contribution Palavras-chave: Pesticides; Surface water; El Temsah; Bitter lakes; Suez Canal Accumulation Fish meal Wastes Water masses Fish meal Wastes http://aims.fao.org/aos/agrovoc/c_2925 http://aims.fao.org/aos/agrovoc/c_8307.
Ano: 2005 URL: http://hdl.handle.net/1834/1060
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Environmental Impact Assessment of two polluting sources on stream in Nigeria CIGR Journal
Christopher Oluwakunmi Akinbile; FUTA; Wasiu Olugbojo; Federal University of Technology, Akure; Obafemi Olubanjo; Federal University of Technology, Akure.
The environmental impact of locating two polluting sources of landfill (refuse dump) and petrochemicals on Alaba stream in Akure, Nigeria was assessed. This was due to the dependence of Alaba inhabitants and its environment on the stream for variety of uses. Twenty physio-chemical parameters were analyzed for wet and dry seasons respectively with three sampling points within 5m intervals from one another of the two polluting sources on the stream. The parameters included: colour, odour, taste, pH, temperature, turbidity, alkalinity, conductivity, dissolved oxygen (DO), biochemical oxygen demand (BOD5) and total solids (TS). Others were chloride (CL-), total dissolved solids (TDS), total suspended solids (TSS), lead (Pb), nitrate (NO3), sulphate (SO4-2),...
Palavras-chave: Water quality; Treatment Pollution; Parameters; Petrochemical; Landfill; Surface water; Akure.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3215
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Environmental Impact Assessment of two polluting sources on stream in Nigeria CIGR Journal
Akinbile, Christopher Oluwakunmi; Olugbojo, Wasiu; Olubanjo, Obafemi.
The environmental impact of locating two polluting sources of landfill (refuse dump) and petrochemicals on Alaba stream in Akure, Nigeria was assessed. This was due to the dependence of Alaba inhabitants and its environment on the stream for variety of uses. Twenty physio-chemical parameters were analyzed for wet and dry seasons respectively with three sampling points within 5m intervals from one another of the two polluting sources on the stream. The parameters included: colour, odour, taste, pH, temperature, turbidity, alkalinity, conductivity, dissolved oxygen (DO), biochemical oxygen demand (BOD5) and total solids (TS). Others were chloride (CL-), total dissolved solids (TDS), total suspended solids (TSS), lead (Pb), nitrate (NO3), sulphate (SO4-2),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Water quality; Treatment Pollution; Parameters; Petrochemical; Landfill; Surface water; Akure.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3215
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Estudio de corrientes marinas en la Bahía Chile (Bahía Discovery) OceanDocs
Medina, F..
Velocidades superficiales de las aguas fueron medidas en la Bahía chile en la Isla Greenwich, como parte de la Segunda Expedición Ecuatoriana a la Antártida, durante el verano del hemisferio sur, en 1990. Masas de hielo a la deriva desprendidas desde la costa fueron usadas como trazadores lagrangianos. Son comparadas corrientes superficiales y observaciones de vientos. La circulación superficial es determinada por los vientos cuando la velocidad de estos últimos exceden los 6 m/s. Los valores máximos y la dirección de la deriva superficial dependen exclusivamente del campo de viento prevaleciente. La velocidad de la corriente puede alcanzar valores de hasta 40 cm/s.
Tipo: Journal Contribution Palavras-chave: Surface water; Ice drift; Surface currents; Surface drifters; Polar waters; Surface circulation; Surface water.
Ano: 1990 URL: http://hdl.handle.net/1834/3727
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Estudio hidroquímico en las aguas del Estrecho Bransfield, durante el verano austral 1998 OceanDocs
Burgos, L..
Durante los meses del verano austral (Nov. 1997-feb.1998) se realizó la VII Expedición Ecuatoriana a la Antártida a bordo del B/I ORION del Instituto Oceanográfico de la Armada. del 24 al 27 de enero/98, se realizaron 14 estaciones oceanográficas en el interior del Estrecho Bransfield donde además de varios parámetros físicos, meteorológicos y biológicos se estudiaron parámetros químicos como micronutrientes y oxígeno disuelto hasta una profundidad de 500 m. Se exponen los criterios y resultados obtenido de la distribución superficial y subsuperficial de los nutrientes y oxígeno disueltos. Se describen los diagramas T/S de las masas de aguas identificadas y su composición química. Las aguas superficiales del interior del Estrecho Bransfield se presentaron...
Tipo: Journal Contribution Palavras-chave: Chemical composition; Dissolved oxygen; Surface water; Ground water; Research vessels; Ground water; Chemical composition; Dissolved oxygen; Surface water.
Ano: 1998 URL: http://hdl.handle.net/1834/3849
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Freshwater quality of a stream in agricultural area where organic compost from animal and vegetable wastes is used Ciência e Agrotecnologia
Saran,Luciana Maria; Meneghine,Aylan Kener; Célico,Amanda Schimidt; Pinheiro,Daniel Guariz; Alves,Lucia Maria Carareto.
ABSTRACT Organic compost from biomass residues constitutes a viable alternative for partial or total replacement of mineral fertilizers for growing vegetables. This study evaluated the effects of compost on the water quality of a stream used mainly for irrigation of agricultural crops cultivated in nearby soil that has been treated with organic compost produced by carcasses, animal and vegetable waste for the last ten years. We sampled water biannually for two years, 2013 and 2014, from five locations along the stream. Physical variables and some chemical variables were analyzed. We also analyzed the total number of coliforms (Escherichia coli). Bacterial populations were compared by carbon substrate consumption. Total phosphorus contents in the samples...
Tipo: Info:eu-repo/semantics/article Palavras-chave: EcoPlate; Carcasses and animal waste; Agriculture; Surface water; Composting.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300263
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Influence of environmental and anthropogenic factors on the composition, concentration and spatial distribution of microplastics: A case study of the Bay of Brest (Brittany, France) ArchiMer
Frere, L.; Paul-pont, I.; Rinnert, Emmanuel; Petton, Sebastien; Jaffre, J; Bihannic, Isabelle; Soudant, P.; Lambert, C.; Huvet, Arnaud.
The concentration and spatial distribution of microplastics in the Bay of Brest (Brittany, France) was investigated in two surveys. Surface water and sediment were sampled at nine locations in areas characterized by contrasting anthropic pressures, riverine influences or water mixing. Microplastics were categorized by their polymer type and size class. Microplastic contamination in surface water and sediment was dominated by polyethylene fragments (PE, 53–67%) followed by polypropylene (PP, 16–30%) and polystyrene (PS, 16–17%) microparticles. The presence of buoyant microplastics (PE, PP and PS) in sediment suggests the existence of physical and/or biological processes leading to vertical transfer of lightweight microplastics in the bay. In sediment (upper...
Tipo: Text Palavras-chave: Microplastic; Coastal ecosystem; Surface water; Sediment; Raman spectroscopy; Hydrodynamic; Dispersal particle modelling.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00379/48994/51083.pdf
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Institutional constraints to conjunctive water management in the Rechna Doab. AgEcon
Jehangir, Waqar Ahmed; Horinkova, Vilma.
Tipo: Working or Discussion Paper Palavras-chave: Water management; Conjunctive use; Groundwater; Surface water; River basins; Institutional development; Organizations; Water law; Legislation; Irrigation scheduling; Conflict; Institutional constraints; Organizational change; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2002 URL: http://purl.umn.edu/92705
Registros recuperados: 39
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