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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 10
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Calidad físico química y bacteriológica de las aguas alrededor de la ciudad de Guayaquil 1996 - 1998 OceanDocs
Valencia, M.; Palacios, C.; Rodríguez, A..
Siendo Guayaquil una de las ciudades más pobladas del Ecuador y de gran importancia en el desarrollo industrial del país, se determinó la necesidad de llevar a cabo un estudio de la calidad de aguas del río y esteros que bordean la ciudad, debido a que los asentamientos poblacionales e industriales han crecido descargando sus desechos a esos ecosistemas, sumándose a esto el déficit de los sistemas de alcantarillado. Se presenta los resultados de un estudio realizado en el Río Guayas desde el Muelle de la Unidad Nacional hasta la zona de las Esclusas considerando 9 estaciones ubicadas en 3 perfiles perpendiculares a las riberas del río a dos niveles de profundidad, superficie y 10 m., así como de la zona del Estero Salado comprendida entre el área de...
Tipo: Journal Contribution Palavras-chave: Water quality; River water; Water analysis; Nutrients (mineral); Dissolved oxygen; Petroleum hydrocarbons; Rivers; Marshes; Freshwater pollution; Brackishwater pollution; Estuaries; Water quality; Dissolved oxygen; Rivers; Estuaries; Water analysis; Marshes; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_36106; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_16064; Http://aims.fao.org/aos/agrovoc/c_4631.
Ano: 2000 URL: http://hdl.handle.net/1834/2309
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Chitin/toxicant interactions and microbial degradation within estuarine ecosystems. ArchiMer
Portier, R; Meyers, S.
The environmental effect and fate of several agricultural and industrial source toxicants were evaluated in controlled laboratory microcosm systems in the presence of the aminopolysaccharide polymer, chitin. Toxicants examined included methyl parathion, phenol, pentachlorophenol, 2,4 dichlorophenol, 1,2 dichloroethane and Kepone. Microcosm operating parameters, including pH/Eh, salinity, temperature, flow rate and sediment/water interface conditions, were based on comparable in situ measurements. Fate analysis predictions were based on mineralization of the parent toxicant compound as measured by chromatographic analysis or super(14)CO sub(2) expiration. Chitin, amended to continuous flow microcosms, promoted either cometabolic or cooxidative...
Tipo: Text Palavras-chave: Controlled conditions; Chemical pollutants; Industrial wastes; Pesticides; Metabolism; Food webs; Biodegradation; Ecosystems; Microorganisms; Environmental effects; Brackishwater pollution; Estuaries; Toxicants; Chitin.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1011.pdf
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Comportement chimique et geochimique des elements a l'état de traces dans l''estuaire de la Seine: Une synthese des resultats ArchiMer
Guegueniat, P.
Five topics are developed in this synthesis: (1) multi elements analysis in geochemistry; (2) iron geochemical behavior; (3) complexing properties of waters; (4) copper behavior in estuarine waters; (5) impact of sediment dynamics on dissolved metals concentration.
Tipo: Text Palavras-chave: Geographical distribution; Radiochemistry; Brackishwater pollution; Sediment dynamics; Dissolved chemicals; Heavy metals; Geochemistry; Physicochemical properties; Trace elements.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1290.pdf
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Ecotoxicology assay for the evaluation of environmental water quality in a tropical urban estuary Anais da ABC (AABC)
NILIN,JEAMYLLE; SANTOS,ANDERSON A.O.; NASCIMENTO,MEGGIE K.S..
Abstract Most studies evaluating the impacts of river pollution in the semi-arid region of Brazil have been geared towards physiochemical analyses, and investigations of the adverse effects of water pollution on associated organisms are scarce. This study aimed to evaluate the water quality in the Poxim river estuary in Aracaju, Sergipe throughout the dry and rainy season by evaluating the survival of the microcrustacean Mysidopsis juniae and physicochemical analyses. The evaluation of physiochemical parameters revealed a decrease in dissolved oxygen content in the rainy season. However, there was a significant reduction in microcrustacean survival in samples during the dry season, when the river flow is reduced and effluents become concentrated. These...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Poxim River; Sergipe; Mysidopsis juniae; Basic sanitation; Acute toxicity; Brackishwater pollution.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100604
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Evaluacion de factores hidroquimicos indicadores de contaminacion orgánica en la laguna costera del Doctor, Playa Baracoa, Cuba OceanDocs
Perigó Hernández, A.M.; Perigó Arnaud, E.; Montalvo, J.F.; Chang Corona, E.; César Manfarrol, M.E.; García, R..
En la zona costera del municipio Bauta se encuentra la laguna costera el Doctor, cuya calidad se ha visto seriamente dañada por ser receptora de un considerable volumen de residuales crudos (alrededor de 8000 m3) originados por las actividades domésticas de de una Comunidad de alrededor de 5000 habitantes y otras instalaciones comerciales y vivienda que se desarrollan en la margen de la laguna, como consecuencia ocurrió masivas mortandades de peces derivado de las condiciones anóxicas de la laguna (Perigó, et al, 2003, Alcalde et al, 2003). El objetivo de este trabajo es actualizar el conocimiento sobre el estado de la calidad ambiental de la laguna El Doctor a través de variables de estado indicadoras de contaminación orgánica.
Tipo: Conference Material Palavras-chave: Coastal lagoons; Brackishwater pollution; Organic wastes; Environmental impact; Domestic wastes; Organic wastes; Environmental impact; Domestic wastes; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_35237; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_35241; Http://aims.fao.org/aos/agrovoc/c_1697.
Ano: 2006 URL: http://hdl.handle.net/1834/2255
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Evaluation des apports fluviatiles dans l''estuaire de la Seine ArchiMer
Avoine, J.
Economic activities and urbanization along the Seine watershed, are the main factors of increased river discharge with natural deposits. A long term supervision of this river has allowed the assessment of the liquid flow rate, the solid load, and the metallic pollution.
Tipo: Text Palavras-chave: Seasonal variations; Trace metals; Sediment transport; Fluid flow; Brackishwater pollution; Estuarine sedimentation; River discharge.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1274.pdf
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La Baie de Seine: Utilisation, environnement. Synthese des discussions ArchiMer
Mauvais, J.
This report synthesizes the communications about the processes set in motion or accelerated by man's actions in the Seine Bay. They are grouped in three categories: fishing and pollution and estuarine equipment; colored waters and pollution; and estuarine equipment.
Tipo: Text Palavras-chave: Red tides; Port installations; Estuarine fisheries; Environmental impact; Brackishwater pollution; Coastal zone management; Estuaries.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1322.pdf
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Milieu vivant: Synthese des discussions ArchiMer
Retiere, C.
After a general note the author reports the effects of pollutants in organisms, in particular, sublethal effects and bioaccumulation.
Tipo: Text Palavras-chave: Estuarine organisms; Sublethal effects; Environmental impact; Estuaries; Bioaccumulation; Pollution effects; Brackishwater pollution.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/acte-1311.pdf
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Studies on the water quality of River Ramisi near a sugar factory OceanDocs
Oteko, D..
The findings are presented of a study conducted to investigate the quality of the water at the Ramisi Estuary, which is affected by effluents from a sugar factory. The river was found to be polluted all year round by these wastes and the need for proper treatment of the waste before discharging is stressed.
Tipo: Journal Contribution Palavras-chave: Industrial wastes; Brackishwater pollution; Freshwater pollution; Pollution monitoring; Wastes; Absorption; Wastes.
Ano: 1986 URL: http://hdl.handle.net/1834/1210
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Studies on the water quality of River Ramisi near a sugar factory OceanDocs
Oteko, D..
The findings are presented of a study conducted to investigate the quality of the water at the Ramisi Estuary, which is affected by effluents from a sugar factory. The river was found to be polluted all year round by these wastes and the need for proper treatment of the waste before discharging is stressed.
Tipo: Journal Contribution Palavras-chave: Industrial wastes; Brackishwater pollution; Freshwater pollution; Pollution monitoring; Wastes; Absorption; Wastes.
Ano: 1986 URL: http://hdl.handle.net/1834/1210
Registros recuperados: 10
Primeira ... 1 ... Última
 

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