Dissertações em Ciências Ambientais (Mestrado) - PPGCA/IG
URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/2855
O Mestrado Acadêmico em Ciências Ambientais teve início em 2005 e funciona no Programa de Pós-Graduação em Ciências Ambientais (PPGCA) do Instituto de Geociências (IG) da Universidade Federal do Pará (UFPA) em parceria com o Museu Paraense Emílio Goeldi (MPEG) e a Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA/Amazônia Oriental).
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Item Acesso aberto (Open Access) Contaminação de canais urbanos por microplástico em uma capital da Amazônia(Universidade Federal do Pará, 2024-04-22) SANTOS, Luana Francy Oliveira; MARTINELLI FILHO, José Eduardo; http://lattes.cnpq.br/2080628833884538; https://orcid.org/0000-0001-8445-1332The socio-environmental problems faced in several cities in the Amazon region are, in part the result of the precariousness or absence of basic sanitation services. The city of Macapá, state of Amapá, has the national indexes in the provision of set of services linked to basic sanitation, among such services the collection and treatment of sewage and the adequate disposal of solid waste such as plastic material. With this comes the objective of this study, which is to evaluate the presence, quantity and types of microplastics in urban canals in the municipality, as well as to analyze the importance of environmental variables in relation to the quantity and distribution of such particles. For this purpose, water samples were collected with a Van Dorn bottle and sediment with a Van Veen dredger from five urban canals. The results obtained showed that microplastics were found in all samples. An average amount of 17 ±13MPs/L for water and of 453 ± 345 MPs/Kg for sediments were recorded. The predominant MPs were the fibers in the water samples, with a predominance of sizes smaller than 300 µm and in the colors blue and black. For sediments, fragments were the dominant format, with a greater proportion of transparent, blue and black colors. The data obtained showed the current state of the level of contamination of Macapá’s urban canals, indicating the need for effective public policies for Amazonian cities.Item Acesso aberto (Open Access) Políticas de Estado e tecnologias sociais de água de chuva na Amazônia brasileira(Universidade Federal do Pará, 2023-04-27) BATISTA, Lucas Mota; SILVA, José Francisco Berrêdo Reis da; http://lattes.cnpq.br/1338038101910673; https://orcid.org/0000-0002-8590-2462; NAHUM, João Santos; http://lattes.cnpq.br/9009465125001273; https://orcid.org/0000-0001-7791-9240The Brazilian Amazon is a region marked by the deficit in the drinking water supply, dispite of your vastness in water resources. This reality imposes itself mainly on the rural populations of the region. Indeed, the utilization of rainwater arise as an alternative to the public supply, safed and regular of water in territories not accessed by conventional services. Therefore, the present research aimed the construction of a investigative and reflective study, guided by the following question: in what extent the state has acted, through public policies instruments, in consideration of the potential of stormwater as a method of public supply in the Brazilian Amazon? The first chapter introduces the introductory aspects to the thematic. The second chapter presents the article 1, with the elaboration of a sizing of the quantitative potential of Rainwater Harvesting Systems (RWHS), and is based on a representative case report of the state of Pará. The chapter three (article 2) uses as reference the case of a riverside community in the insular region of the capital of Pará, Belém, for a comparative approach, in an analysis of the economic viability of this method. In addition, the chapter four (article 3) essentially seeks to answer the guiding question. Conclusively, the results point to, factually, at least over the 20 years, diferentes initiatives to promote the use of rainwater have taken place, supported by governmental entities in the Brazilian Amazon. However, in concern to the non prioritization of this region in the main public programs of this segment in the country, the state’s performance towards the fulfillment of the sanitation universalization goals can still be seen as insufficient.