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Previous issue date: 2009-04-30 / Acid rain is a major assault on the environment, a consequence of burning fossil fuels and industrial pollutants the basis of sulfur dioxide released into the atmosphere. The objective of this research was to monitor and analyze changes in water quality of rain in the city of Natal, seeking to investigate the influence of quality on a local, regional and global, in addition to possible effects of this quality in the local landscape. Data collection was performed from December 2005 to December 2007. We used techniques of nefan?lise in identifying systems sin?ticos, field research in the search for possible effects of acid rain on the landscape, and collect and analyze data of precipitation and its degree of acidity. Used descriptive statistics (standard deviation and coefficient of variation) used to monitor the behavior of chemical precipitation, and monitoring of errors in measurements of pH, level of confidence, Normalized distribution of Gauss, confidence intervals, analysis of variance ANOVA were also used. Main results presented as a variation of pH between 5,021 and 6,836, with an average standard deviation of 5,958 and 0,402, showing that the average may represent the sample. Thus, we can infer that, according to the CONAMA Resolution 357 (the index for fresh water acidity should be between 6.0 and 9.0), the precipitation of Natal / RN is slightly acidic. It appears that the intertropical convergence zone figures showed the most acidic among the systems analyzed sin?ticos, taking its average value of pH of 5,617, which means an acid value now, with a standard deviation of 0,235 and the coefficient of variation of 4,183% which shows that the average may represent the sample. Already in field research and found several places that suffer strongly the action of acid rain. However, the results are original and need further investigation, including the use of new methodologies / As chuvas ?cidas s?o uma das principais agress?es ao meio ambiente, conseq??ncia da queima de combust?veis f?sseis e de poluentes industriais a base de di?xido de enxofre lan?ados na atmosfera. O objetivo da pesquisa foi monitorar e analisar a varia??o da qualidade da ?gua de chuva na cidade de Natal, procurando investigar a influ?ncia dessa qualidade nas escalas local, regional e global, al?m de procurar poss?veis efeitos dessa qualidade na paisagem local. A coleta de dados foi feita no per?odo de dezembro de 2005 a dezembro de 2007. Utilizou-se de t?cnicas de nefan?lise na identifica??o de sistemas sin?ticos, pesquisa de campo na procura de poss?veis efeitos na paisagem da chuva ?cida, al?m de coleta e analise de dados de precipita??o e seu grau de acidez. Estat?stica descritiva utilizada (desvio padr?o e coeficiente de varia??o) serviu para monitorar o comportamento qu?mico da precipita??o, al?m do monitoramento dos erros nas medi??es de pH, n?vel de confian?a, distribui??o de Gauss Normalizada, intervalo de confian?a, An?lise de Vari?ncia ANOVA foram tamb?m utilizadas. Apresenta como principais resultados uma varia??o de pH entre 5,021 e 6,836, com uma m?dia de 5,958 e desvio padr?o de 0,402, demonstrando que a m?dia pode representar a amostra. Assim, pode-se inferir que, segundo a Resolu??o do CONAMA 357 (?guas doces o ?ndice de acidez dever? ficar entre 6,0 e 9,0), a precipita??o de Natal/RN ? pouco ?cida. Constata-se que a Zona de Converg?ncia Intertropical apresentou os valores mais ?cidos entre os sistemas sin?ticos analisados, tendo em sua m?dia o valor de pH de 5,617, o que significa um valor j? ?cido, com um desvio padr?o de 0,235 e com o coeficiente de varia??o de 4,183% o que demonstra que a m?dia pode representar a amostra. J? na pesquisa de campo, foram localizados v?rios locais que sofrem fortemente a a??o da chuva ?cida. Contudo, os resultados s?o iniciais e necessitam de maiores investiga??es, inclusive com o uso de novas metodologias
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/18876 |
| Date | 30 April 2009 |
| Creators | Alves, Adriano Eduardo L?vio |
| Contributors | CPF:20610700430, http://lattes.cnpq.br/3687987476428917, Lima, Zuleide Maria Carvalho, CPF:44366825449, http://lattes.cnpq.br/1283103005046733, Gomes, Cilene, CPF:06677676811, http://lattes.cnpq.br/4907904919744128, Silva, Fernando Moreira da |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Geografia, UFRN, BR, Din?mica e Reestrutura??o do Territ?rio |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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