Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-13T19:33:23Z No. of bitstreams: 1 FernandoAntonioCarneiroDeMedeiros_DISSERT.pdf: 2991950 bytes, checksum: eee8c3de4a1f772d2055165e33721ba0 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-14T19:23:35Z (GMT) No. of bitstreams: 1 FernandoAntonioCarneiroDeMedeiros_DISSERT.pdf: 2991950 bytes, checksum: eee8c3de4a1f772d2055165e33721ba0 (MD5) / Made available in DSpace on 2017-02-14T19:23:35Z (GMT). No. of bitstreams: 1 FernandoAntonioCarneiroDeMedeiros_DISSERT.pdf: 2991950 bytes, checksum: eee8c3de4a1f772d2055165e33721ba0 (MD5) Previous issue date: 2016-07-28 / O crescimento desordenado dos espa?os urbanos, os consequentes problemas decorrentes da contamina??o dos mananciais de abastecimento p?blico, a preocupa??o das pessoas com uma vida mais saud?vel por meio do consumo de produtos menos cal?ricos e mais naturais levaram a mudan?as de h?bitos que resultaram em um expressivo e crescente consumo de ?gua mineral em todo o mundo. Entretanto, nas ?ltimas d?cadas, v?rios estudos constataram casos de contamina??o das ?guas minerais envasadas por coliformes e outras bact?rias, e altera??es nas propriedades f?sico-qu?micas, resultando na desconformidade com os padr?es de potabilidade e recomenda??es dos ?rg?os de controle, colocando em risco a saude dos consumidores. Dentro desta problem?tica, o objetivo deste trabalho foi avaliar a qualidade das ?guas minerais naturais envasadas em recipientes de 20 litros, oferecida pelo com?rcio varejista ? popula??o do Munic?pio de Natal, RN, Brasil. Foram colhidas aleatoriamente 64 amostras de recipientes de 20 litros, mediante estratifica??o, nas quatro regi?es administrativas do munic?pio, considerando a listagem oficial de pontos de venda e os n?veis de contamina??o por coliformes totais encontrados em amostra piloto. Os resultados de mais destaque constataram a presen?a Coliformes Totais acima de 1,1 NMP/100mL em 32,81% (?11,8%) dos garraf?es. Aplicados os testes estat?sticos de coeficiente de Pearson e de associa??o qui-quadrado, n?o foram encontradas rela??es entre a contamina??o por Coliformes Totais e: dist?ncia do ponto comercial ? ind?stria; tempo de envase; idade do garraf?o; regi?o administrativa municipal e modo de estocagem. O confronto das informa??es com outro trabalho realizado em 2015 permitiu inferir que existe uma importante via de contamina??o de coliformes fecais entre o ponto de venda no varejo e o copo dos consumidores. / The uncontrolled growth of urban areas, the consequent problems arising from contamination of public drinking water supply sources, people?s concernof a healthier lifestyle, triggering the consumption of consuming less caloric and more natural products led to changes in habits that resulted in a significant and increasing consumption of bottled water around the world. However, in recent decades, many studies began to find cases off bottled mineral water contamination by coliform and other bacteria, as well as changes in physical-chemical properties, resulting in noncompliance with the standards of potability and recommendations fromregulatory bodies, endangering the health of consumers. With that in mind, this study aimed to evaluate the quality of natural mineral water bottled in 20-liter containers, offered by retailers to the population of Natal, RN, Brazil. 64 random samples were taken by stratification in the four administrative regions of the city, considering the official points of salelist and contamination levels for total coliforms found in the pilot sample. The results of more prominent found contamination by total coliforms in 32.81% (? 11.8%) of bottles. Statistical tests of Pearson's coefficient and chi-square association applied found no correlation between total coliforms presence and: distance between points of sale and manufacturers; time of bottling; bottle age; municipal administrative region or storage mode. The comparison of information with another work done in 2015 allowed us to infer that there is an important route of contamination of fecal coliforms between the point of sale in retail and the glass of consumers.