Conama Resolution 357 2005
Mostrando 13-24 de 28 artigos, teses e dissertações.
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13. Avaliação de parâmetros limnológicos, parasitas, bactérias e metais pesados em água superficial no córrego Ribeirão Preto, Ribeirão Preto - SP / Evaluation of limnological parameters, parasites, bacteria and heavy metals in superficial water of Ribeirão Preto Stream, Ribeirão Preto-SP.
Water is fundamental to life. Its multiple uses are needed for a broad spectrum of human activities, among which stand out, the public and industrial supply, agricultural irrigation, the production of electricity and leisure activities and recreation. It is known that Brazil still has a privileged position of water quantity and quality, but their use hasnt b
Publicado em: 2010
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14. DETERMINATION OF TOTAL AS IN OCEANIC WATER BY HG AFS / DETERMINAÇÃO DE AS TOTAL EM ÁGUAS OCEÂNICAS POR HG AFS
The increase in industrial activity has increased human exposure to metals and metalloids exponentially. In this context, arsenium is a good example, being increasingly found in several natural environments. It is an element with no essential biological function, and possessed of elevated toxicity. The discharge of toxic elements in aquatic bodies can promot
Publicado em: 2010
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15. Um método verde e sensível para determinação de fenóis em amostras de água utilizando sistemas aquosos bifásicos / A greener and sensitive method for phenols determination in water samples using aqueous twophase systems
This work initially presents a brief review of aqueous two- phase systems (ATPS), including the history, principles and properties of the technique. Furthermore, a divulgation on green methods for determination of phenols in water is shown, since these substances have high toxicity. The disposal of phenolic compounds is regulated in several countries, includ
Publicado em: 2009
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16. Groundwater vulnerability to pollution a study of Bauru aquifer in the urban zone of Araguari (MG) / Vulnerabilidade à poluição das águas subterrâneas Um estudo do Aquífero Bauru na zona urbana de Araguari, MG
This work deals with the main aspects related to the study of the vulnerability intrinsic to the pollution of the aquifer Bauru placed under the urban zone of Araguari, MG. The analysis applied the GOD Method and put forward new parameters in order to get a broader evaluation (Hybrid Method). By this way, the main parameters considered in the study of vulner
Publicado em: 2009
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17. Uso do solo na Bacia Hidrográfica do rio Camboriú (SC) e sua influência sobre a qualidade da água
The watershed of the Camboriú River is located in the cities of Camboriú and Balneário Camboriú. With a length of around 40 kilometers, it drains an area of 200 km2. This paper aims to characterize the Camboriú River watershed by determining space-time variations of physical, chemical and biological parameters of superficial water, as well as the soil o
Publicado em: 2009
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18. Water quality in cultivation of shrimp in the Great Aracaju - Sergipe, Brazil. / Qualidade da água na carcinicultura na Grande Aracaju - Sergipe, Brasil.
Known to be essential for human survival, water is one of the most important natural resources of the planet; its quality is of fundamental importance for the sustainability of any agroecosystem. There is a worldwide trend in its preservation, to ensure its availability for various purposes. The aquaculture activity in the cultivation of shrimp has as one of
Publicado em: 2009
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19. Toxicidade subcrônica de lambaris Astyanax aff. bimaculatus expostos ao zinco / Subchronic toxicity in Astyanax aff. bimaculatus exposed to zinc.
Many metals occur naturally in aquatic environments and are classified as pollutants only when added by men in sufficient amounts to produce deleterious effects on organisms. Among these metals already existent on the aquatic environment it can be mentioned zinc (Zn) which is an essential element for living beings. In high concentrations, zinc can become tox
Publicado em: 2009
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20. Diagnóstico ambiental das águas do estuário Jundiaí-Potengi pela determinação dos índices de qualidade da água e toxidez
This study is an environmental diagnosis of the Jundiaí-Potengi/RN estuarine system waters, using calculations of pollution indicator indices such as the Water Quality Index (WQI) and the Toxicity Index (TI). The samples were collected at twelve points on the estuary, at high and low tide, between August and November 2007, over four campaigns. The study are
Publicado em: 2008
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21. Ecotoxicologycal and physical-chemical evaluation of Ribeirão Tatu in the country of Limeira - SP / Avaliação fisico-quimica e ecotoxicologica do Ribeirão Tatu no municipio de Limeira - SP
Water is a finite and essential resource for all life forms. Studies have shown that many illnesses can be caused by contaminated water. The ribeirão Tatu basin comprises much of the urban area of the county of Limeira, SP, Brazil. It originates in the agricultural zone of the county of Cordeirópolis and empties into rio Piracicaba. According to CONAMA Res
Publicado em: 2008
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22. Comparação dos índices de qualidade da água e usos do fator contaminação e índice de geoacumulação para os sedimentos da microbacia do arroio João Corrêa, São Leopoldo, RS, Brasil
The João Corrêa creek, with 7 km length and a 9.7 km2 micro basin (MbaJC), has its main source into the forested hilly landscape of Sapucaia county and flows trough out the São Leopoldo city, receiving along his course several urban wastes and industrial effluents. Looking for a quantified evaluation of environmental impacts related to human activities, m
Publicado em: 2008
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23. Avaliação do perfil e da resistência bacteriana nos efluentes de um hospital em Itajaí/Santa Catarina
Throughout history, bacterial infections associated with a lack of basic sanitation have been the cause of many public health problems. With the development of science and improvements in technologies for treating water and sewage, the control of the spread of water-borne diseases became more efficient. Moreover, the discovery and use of antibiotics also fav
Publicado em: 2008
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24. Investigação da toxicidade, tratabilidade e formação de subprodutos tóxicos em efluentes clorados de lagoas de estabilização com e sem pós-tratamento. / Investigation of toxicity, treatability and toxic disinfection by-products formation in chlorinated stabilization ponds effluents with and without post-treatment.
The main difficulties that the stabilization ponds for sewage treatment systems face to meet the requirements imposed by CONAMA Resolution 357/2005 can highlight the high concentrations of ammonia nitrogen, phosphorus and fecal and total coliform. When the systems use receivers water bodies Class 2 or 3 generate the need for disinfection. Among the different
Publicado em: 2008