Non Point Source Pollution
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Assessing the sources of high fecal coliform levels at an urban tropical beach
Recreational water quality is commonly assessed by microbial indicators such as fecal coliforms. Maceió is the capital of Alagoas state, located in tropical northeastern Brazil. Its beaches are considered as the most beautiful urban beaches in the country. Jatiúca Beach in Maceió was found to be unsuitable for bathing continuously during the year of 2011.
Braz. J. Microbiol.. Publicado em: 27/10/2015
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2. Caracterização ambiental e estimativa da produção de cargas difusas da área de drenagem da represa de Itupararanga, SP / Environmental characterization and estimative of diffuse pollution of Itupararanga watershed, SP
The use of satellite images has improved the study of the land use dynamics. Land cover mapping have become fundamental tools in the assessment of landscape changes caused by human action and its influence on regional and urban planning. Computation tools such as Geographic Information Systems and hydrological models have supported these findings. The hydrol
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/05/2012
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3. Identificação dos sistemas de produção agropecuária do arenito caiuá sujeitos a erosão utilizando o modelo AGNPS
The series of impacts due to the inadequate exploitation of natural resources by agriculture produces, among other effects, the erosion of the soils, which causes serious damage to the society through the reduction of its productive capacity and the continuous contamination of surface water with sediments, material and organic matter, chemical products and n
Publicado em: 2009
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4. DiagnÃstico geoquÃmico e geocronologia do sistema estuarino-lagunar do roteiro Alagoas
The estuarine lagoon system of the Roteiro is located in the central coast of Alagoas, showing the largest continuous area of preserved mangroves of the State of Alagoas. This ecosystem has been heavily impacted by various anthropogenic activities such as urbanization, the cultivation of oysters, the gas production, the manufacture of cement and the cultivat
Publicado em: 2008
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5. Avaliação do risco de contaminação de mananciais hídricos para o abastecimento: o caso da bacia da barragem do descoberto
In catchments where the threat of impairment is due to non-point pollution, identifying the critical areas that contribute a large amount of pollutants is of paramount importance for the sustainable development of the watershed. Often resources for catchments management are poor and there is no way to establish a comprehensive monitoring system or to calibra
Publicado em: 2007
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6. A WATERSHED INFORMATION SYSTEM (WIS) FOR WATER QUALITY ANALYSES
Assessments of water quality in surface water bodies are increasingly incorporating both point and non-point pollutant sources. Water quality constituents are transported in the water as well as on the sediments. Predictions of constituent concentrations in the water and on the sediments require simulation models of water and sediment transport processes ove
Publicado em: 2005
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7. Avaliação do risco de poluição por carga difusa na Bacia Ribeirão dos Marins- Monjolinho, Piracicaba, SP
ormado.
Publicado em: 2003
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8. Streamflow and sediment yield simulation within a small watershed through geoprocessing and modeling techniques. / Simulação de escoamento e de produção de sedimentos em uma microbacia hidrográfica utilizando técnicas de modelagem e geoprocessamento.
Hydrological and water quality models have been developed to evaluate the nonpoint source pollution in agricultural watershed. With this objective, SWAT (Soil and Water Assessment Tool) model was applied to simulate the streamflow and sediment yield in Ribeirão dos Marins watershed, on the Piracicaba river basin, Brazil, for the period 1999/2000. The applic
Publicado em: 2002