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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Limonologia e qualidade ambiental de um corpo l?ntico receptor de efluentes tratados da ind?stria de petr?leo / Limnology and environmental quality of lagoon receiver petroleum effluents treated

Lima, Anita Maria de 02 September 2004 (has links)
Made available in DSpace on 2014-12-17T15:01:20Z (GMT). No. of bitstreams: 1 AnitaML.pdf: 8838564 bytes, checksum: 65c8b2d71a3bd376ee943cbc1f350499 (MD5) Previous issue date: 2004-09-02 / Environmental pollution has become a subject of public interest throughout the world. Not only have developed countries been affected by environmental problems but also the developing nations have started to suffer from the serious impacts of pollution. Within this context it is necessary to collect simplified environmental data to assist in the management of water resources by the appropriate authorities. These data are obtained through an environmental index that allows a space-time comparison of points distributed in the same aquatic body, or between different water bodies, for physico-chemical and bacteriological parameters. The aim of this present study was to determine the environmental status of the Lagoa de Baixo at Guamar?/RN, where a production unit of PETROBRAS RN/CE is located. For this purpose the Water Quality Index (WQI) was used in both an add and multiply form, the Trophic State Index (TSI) and the Environmental Quality Quotient (EQQ), as well as determining the concentrations of metals. The average values obtained for the WQI, in its two forms were 68,67 and 62,76 respectively which were inside the good qualification. According to the TSI the lagoon showed characteristics of a middle trophic state, and an impact level of regular as determined by the EQQ / A polui??o ambiental tornou-se assunto de interesse p?blico em todo o mundo. N?o apenas os pa?ses desenvolvidos v?m sendo afetados pelos problemas ambientais; tamb?m as na??es em desenvolvimento come?am a sofrer os graves impactos da polui??o. Dentro deste contexto ? necess?ria a obten??o de dados simplificados para viabilizar a??es no gerenciamento dos recursos h?dricos pelas autoridades. Esses dados s?o obtidos atrav?s dos ?ndices ambientais, que permitem uma compara??o espa?o-temporal de pontos distribu?dos num mesmo corpo aqu?tico ou entre distintas cole??es h?dricas, nos quais est?o inseridos par?metros f?sico-qu?micos e bacteriol?gicos. O objetivo deste trabalho ? realizar um diagn?stico das condi??es ambientais da Lagoa de Baixo em Guamar?/RN, onde se localiza a unidade de produ??o RN/CE da PETROBRAS, contemplando os ?ndices de Qualidade de ?gua Aditivo e Multiplicativo, ?ndice de Estado Tr?fico e Quociente de Qualidade Ambiental, al?m da avalia??o das concentra??es de metais, com vistas ? caracteriza??o ambiental. Os valores m?dios obtidos para os IQA s, aditivo e multiplicativo foram de 68,67 e 62,76 respectivamente, estando dentro da qualifica??o boa . De acordo IET a lagoa apresentou caracter?sticas variando entre oligotr?fica a mesotr?fica, com n?vel de impacto regular apontado pelo QQA
2

Revelando os modos de vida da Ponta do Tubar?o

Nobre, Itamar de Morais 29 November 2005 (has links)
Made available in DSpace on 2014-12-17T14:20:32Z (GMT). No. of bitstreams: 1 ItamarMN.pdf: 6813634 bytes, checksum: 448924894a71f4a4ab24a0709fb71e33 (MD5) Previous issue date: 2005-11-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / It is analyzed the social struggle held by locals at Barreiras, Diogo Lopes and Sert?ozinho communities (Macau-RN) in order to avoid the ownership of its mangrove area to hotel managers, in 1995 and to hinder the destruction of Ilha dos Cavalos mangrove by the shrimp producers, in 2000, what led to the creation of Ponta do Tubar?o Reserve of State Sustainable Development, located at Macau and Guamar? cities, northern coast of Rio Grande do Norte, respectively 180 and 200 kilometers away from Natal, created in July, 18, 2003 by the Decree State Law n. 8.349, to preserve its traditional territory and way of life. It is photographed and analyzed the developed ways of life in this Unit of Conservation, from the sociocultural category, based in pointers of the material production in the life ways as: the work, the leisure, the religion, the popular knowledge and the action of the contemporary men on the environment. In this perspective, it is considered as method strategy a sociocultural photo cartography, created to this research, and to be concretized used photographic documents, observation, interviews, documental research and bibliographic research, being an association of techniques as peculiarities of this strategy of research. It is concluded that the social struggle developed by the collective actors at Ponta do Tubar?o Reserve of State Sustainable Development, is characterized as a transforming action against the global and predatory capital, for the maintenance of the environment and the traditional way of life; One also concludes that the sociocultural photo cartography is very important as a proposal of possible procedures to being used in qualitative researches, because of its analytical potentialities providing a more including vision of the sociocultural routine of the studied space, in the attempt to know and to disclose the relations lived for the citizens of the research in Social Sciences / Analisa-se a luta social desenvolvida pelos moradores das comunidades de Barreiras, Diogo Lopes e Sert?ozinho (Macau/RN) para impedir a posse da Restinga Ponta do Tubar?o por empres?rios hoteleiros, em 1995 e a devasta??o do manguezal da Ilha dos Cavalos por carcinicultores, em 2000, culminando na cria??o da Reserva de Desenvolvimento Sustent?vel Estadual Ponta do Tubar?o, situada nos munic?pios de Macau e Guamar?, litoral norte do Rio Grande do Norte, respectivamente a cerca de 180 e 200 quil?metros da capital - Natal, criada em 18 de julho de 2003, pelo Decreto Lei estadual N.? 8.349, para a preserva??o do seu territ?rio e dos modos de vida tradicionais. Fotocartografam-se e analisam-se os modos de vida desenvolvidos nesta Unidade de Conserva??o, a partir da categoria sociocultural, baseando-se em indicadores da produ??o material dos modos de vida como: o trabalho, o lazer, a religiosidade, os saberes tradicionais e a a??o do homem presente no local sobre o meio ambiente. Nesta perspectiva, prop?e-se como estrat?gia metodol?gica uma Fotocartografia Sociocultural, criada para esta pesquisa, que para ser efetivada utilizou-se do registro fotogr?fico, da observa??o, da entrevista, da pesquisa documental e da pesquisa bibliogr?fica, enquanto associa??o de t?cnicas como peculiaridades desta estrat?gia de pesquisa. Conclui-se que a luta social desenvolvida pelos atores coletivos da RDS Ponta do Tubar?o, caracteriza-se como uma a??o transformadora contra-hegem?nica ao capital globalizado e predat?rio, em favor da manuten??o do meio ambiente e dos modos de vida tradicionais; conclui-se tamb?m que a Fotocartografia Sociocultural possui relev?ncia como proposta de procedimentos poss?veis de serem utilizados em pesquisas qualitativas, por possuir virtualidades anal?ticas, proporcionando uma vis?o mais abrangente do cotidiano sociocultural do espa?o estudado, na tentativa de conhecer e revelar as rela??es vividas pelos sujeitos da pesquisa em Ci?ncias Sociais

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