Based on the norms and concepts to obtain the best quality water for the population's supply and consumption, this research aimed to evaluate the physicochemical parameters of the water quality of the Health Campus of the University City José da Silveira Netto, at the Federal University. Pará (UFPA) in Belém do Pará. Water quality assessment was performed on a regular basis every third Thursday of each month in order to obtain more accurate results on the water supplying the campus using data from the UFPA Water Treatment Plant (ETA) as a comparison. The parameters evaluated were apparent color, turbidity, electrical conductivity, temperature and pH. A relationship was established between the distance of the sample points and the ETA, and correlated with the temporal variations. All points showed high values for the variables apparent color, turbidity and conductivity and, in general, all points had the same behavior over the months, with similar variations. Moreover, the distances of the sampled points and the WTP do not justify the high concentration of the variables. The importance of an evaluation of the chemical quality parameters of this water is stressed.
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This study investigated the changes that occurred during the pandemic of COVID-19 in urban water consumption in residential, commercial, industrial, and public agencies in the city of São Leopoldo, southern Brazil, which has about 55,000 consumers and over 200,000 inhabitants. Overall, the city increased water consumption by 5.6% during the 2-year pandemic, with 5.9% in 2020 and 5.5% in 2021. Residential and industrial consumption increased by 6.77 and 9.92% in the first year, and by 5.47 and 14.45% in the second year, respectively. On the other hand, commercial and public sector consumption decreased, respectively, 5.48 and 46.26%, in the first year, and also 1.83 and 40.99% in the second year. In the first months of the pandemic, there was a sharp increase in residential water consumption at the same time as a reduction in consumption in the other categories. In contrast, there was a slight return to previous water consumption patterns in the following months. Overall, we can affirm that the more central neighborhoods presented higher changes in water consumption than the peripheral neighborhoods. In addition, the water consumption during the pandemic and pre-pandemic periods was statistically different for residential, industrial, and public consumers.
O crescimento populacional desordenado associado ao desenvolvimento urbano e industrial sem planejamento constituem-se em fatores responsáveis pela ocorrência de graves problemas ambientais, dentre estes pode-se destacar a degradação das águas subterrâneas (aquíferos) nos entornos dos cemitérios. A questão sobre cemitérios precisa ser de conhecimento geral e em todos os aspectos, visto que o extravasamento do necrochorume, além de ocasionar um odor desagradável proveniente da putrefação e decomposição dos corpos, pode vir a causar alterações ambientais e pôr em risco a saúde dos seres vivos. Assim, este trabalho visa avaliar a qualidade da água para consumo humano captada em de poços em torno do Cemitério do Tapanã, Região Metropolitana de Belém, Pará. Foram determinadas as variáveis pH, alcalinidade total, condutividade, dureza, cor aparente, nitrogênio total, nitrogênio amoniacal, nitrato, fósforo total, cloreto, coliformes totais e E. coli. Os resultados obtidos indicam que em algumas localidades as variáveis escolhidas não estão de acordo com os valores estabelecidos como padrões, e cuidados especiais devem ser tomados.
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