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Registros recuperados: 40 | |
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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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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 na mídia |
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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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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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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Takahashi, Taro; Sutherland, S. C.; Chipman, D. W.; Goddard, J. G.; Ho, Cheng; Newberger, Timothy; Sweeney, Colm; Munro, D. R.. |
Climatological mean monthly distributions of pH in the total H+ scale, total CO2 concentration (TCO2), and the degree of CaCO3 saturation for the global surface ocean waters (excluding coastal areas) are calculated using a data set for pCO(2), alkalinity and nutrient concentrations in surface waters (depths <50 m), which is built upon the GLODAP, CARINA and LDEO databases. The mutual consistency among these measured parameters is demonstrated using the inorganic carbon chemistry model with the dissociation constants for carbonic acid by Lueker et al. (2000) and for boric acid by Dickson (1990). Linear potential alkalinity-salinity relationships are established for 24 regions of the global ocean. The mean monthly distributions of pH and carbon chemistry... |
Tipo: Text |
Palavras-chave: Global ocean; Surface water; PH; Carbonate chemistry; Climatology; Seasonal and decadal change. |
Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00290/40098/38796.pdf |
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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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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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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),... |
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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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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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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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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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Registros recuperados: 40 | |
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