Abstract

MANUEL, Paulo; LEITAO, Anabela A.  and  BOAVENTURA, Rui A.R.. Qualidade da água para consumo humano na cidade do Uíge (Angola): água tratada do sistema de abastecimento público e água não tratada de fontes alternativas. RILP [online]. 2018, vol.33, pp.75-94.  Epub July 29, 2021. ISSN 2182-4452.  https://doi.org/10.31492/2184-2043.rilp2018.33/pp.75-93.

It is estimated that about 85% of diseases in developing countries are water-borne and are mainly due to the poor water quality for human consumption. In this study the physicochemical and microbiological quality of water consumed by the population of the Uíge city was assessed. Four sampling campaigns were carried out in 10 points of the public supply system, in three artesian bores and nine wells, where 21 physical and chemical and two microbiological parameters were analyzed. The results show that the water leaving the treatment is good only in the new WTP, while the water from taps and artesian bores is physicochemically suitable, but unsuitable microbiologically and the water from wells is very bad. The bacteriological contamination was detected in about 58% of samples from water taps, above 80% of samples from artesian bores and almost 100% of samples from wells, and the situation becomes worse in the rainy season. It was concluded that there is a relationship between the diseases that devastate people and the quality of the water consumed.

Keywords : water for human consumption; treated water; alternative water sources; water-borne diseases; public health.

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