Níveis de Alumínio e Zinco em água coletada em dois municípios que possuem diferentes Fontes de captação e tratamento no estado de São Paulo
| Autor: | Tania Maria Beltramini Trevilato, Susana Inés Segura Muñoz, Pricilla Costa Ferreira, Georgia Carla Ramos Devecchi, Karina Aparecida de Abreu |
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| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | O Mundo da Saúde. 30:619-627 |
| ISSN: | 1980-3990 0104-7809 |
| DOI: | 10.15343/0104-7809.200630.4.13 |
| Popis: | Ground water treatment requires fluoridation and chlorination processes. In water from superficial sources, the treatment is based on flocculation,filtering, fluoridation and chlorination. Aluminum sulfate is used as a flocculant agent in this kind of treatment, which may increase this metalconcentration in water. Aluminum (Al) has been related to Alzheimer Disease (AD). Zinc (Zn) is also a very important metal for human health, especiallyfor senior populations. The objective of this study is to compare the concentrations of Al and Zn in potable water processes, considering different sourcesof water collecting and treatment. Water samples of two cities in Sao Paulo State were analyzed: Ribeirao Preto, supplied with ground water, and Atibaia,supplied with superficial water. Fifty samples of potable water were collected from faucets in homes of senior people and retirement houses. The valuesfound for Al showed that 24% of samples from Ribeirao Preto exceeded the maximum allowed values by national regulations, whereas values found inAtibaia were within allowed values. Zinc levels were under the maximum established values, in both cities, but the statistical test pointed at a significantdifference between them (p |
| Databáze: | OpenAIRE |
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