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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.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/21981 |
| Date | 28 July 2016 |
| Creators | Medeiros, Fernando Antonio Carneiro de |
| Contributors | 06704816453, Santos, Helio Rodrigues dos, 75200252415, Azevedo, Paulo Roberto Medeiros de, 10822470497, Tavares, Jean Leite, 96984465400, Lucas Filho, Manoel |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA SANIT?RIA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| 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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