Land use effects on water quality in the urban agglomeration of Cuiabá and Várzea Grande, Mato Grosso State, central Brazil

Zeilhofer, Peter; Lima, Eliana Beatriz Nunes Rondon; Lima, Gustavo R.

doi:10.1080/1573062x.2010.484496

Cited by 25 publications

(21 citation statements)

References 37 publications

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“…O lançamento de efluentes não tratados, bem como o escoamento superficial urbano, aparecem como fonte de metais para os recursos hídricos (Moraes e Jordão, 2002;Mil-Homens et al, 2013), e os núcleos urbanos que se localizam nas bacias do rio Cuiabá e São Lourenço, ou não possuem tratamento de efluentes domésticos, ou tratam somente uma pequena parcela do que é coletado (Zeilhofer et al, 2010).…”

Section: Introductionunclassified

“…Neste contexto, há uma grande preocupação com a qualidade da água destes mananciais para atender aos múltiplos usos da água da bacia do rio Cuiabá e São Lourenço tais como, o abastecimento público, a diluição de efluente, a geração de energia elétrica, a pesca, bem como a manutenção dos serviços ambientais promovidos pelo Pantanal, uma vez que estes rios poderão ser fontes potenciais de poluentes para esse importante e frágil ecossistema (Zeilhofer et al, 2010).…”

Section: Introductionunclassified

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Metais potencialmente tóxicos em rios a montante do Pantanal Norte

Magalhães¹,

Fantin-Cruz²,

Zeilhofer³

et al. 2016

Rev. ambiente água

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RESUMOOs rios Cuiabá (CBA) e São Lourenço (SL) são considerados estratégicos por integrar regiões de grande relevância econômica, social e ambiental para o Brasil e o mundo. Porém, diversas atividades nas bacias destes rios podem representar fontes de metais potencialmente tóxicos e comprometer a sua qualidade ambiental. Neste trabalho foi avaliada a variabilidade espacial e temporal da concentração de metais nestas bacias e a sua relação com parâmetros de qualidade da água. Foram coletadas mensalmente, de agosto/2012 a julho/2013, 15 amostras de água superficial e 9 amostras de sedimento de fundo, nos rios CBA e SL. As concentrações de Cr, Cu, Fe, Mn, Pb e Zn nas amostras de água foram determinadas por espectrometria de emissão óptica com plasma acoplado indutivamente, e nas amostras de sedimento de leito, por espectrometria de absorção atômica com atomização em chama. Os elementos Fe, Mn, Pb e Cr apresentaram elevadas concentrações nas amostras de água e sedimento, porém apenas Pb e Cr representam potencial risco ambiental. As concentrações de Fe e Mn foram mais elevadas na parte alta do rio SL enquanto as concentrações de Cu e Pb ocorreram na área dos centros urbanos. Temporalmente, os metais estiveram associados ao regime pluviométrico. A correlação observada entre metais indica uma fonte comum. Desta maneira, a ocorrência e concentração de metais nos rios CBA e SL mostram contribuição de origem natural, reflexo do tipo de solo associado ao regime pluviométrico da região, bem como contribuição antrópica devido às atividades agropecuárias e ao lançamento de efluentes urbanos não tratados.Palavras-chave: água, poluição, sedimento de leito.Potentially toxic metals in rivers upstream of Pantanal Norte ABSTRACT Cuiabá (CBA) and São Lourenço (SL) rivers are considered strategic once they integrate regions, which are economically, socially and environmentally relevant for Brazil and the world. However, several activities developed in their watersheds may represent sources of

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Section: Introductionunclassified

Metais potencialmente tóxicos em rios a montante do Pantanal Norte

Magalhães¹,

Fantin-Cruz²,

Zeilhofer³

et al. 2016

Rev. ambiente água

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“…In doing so, we also aim to contribute to the literature on Mato Grosso's water governance from a social science perspective, as the topic is currently studied mostly from more technical viewpoints, e.g., investigating flood control mechanisms [40], water quality [41,42], the impact of hydroelectric power facilities [43,44], and its legal and institutional framework [45], or has a more narrow regional focus on the Pantanal wetland [46,47].…”

Section: The Political Ecology Of Water Abundancementioning

confidence: 99%

The Paradox of Water Abundance in Mato Grosso, Brazil

Schulz

Ioris

2017

Sustainability

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Abstract:While much effort has gone into studying the causes and consequences of water scarcity, the concept of water abundance has received considerably less attention in academic literature. Here, we aim to address this gap by providing a case study on the perceptions and political implications of water abundance in the Brazilian state of Mato Grosso. Combining a political ecology perspective on contemporary water governance (empirically based on stakeholder interviews with members of the state's water sector) with an overview of the environmental history of this hydrosocial territory, we argue, first, that water abundance has become a foundational element of Mato Grosso's identity, situated in the wider context of natural resource abundance more generally and second, that water abundance today is a contested concept witnessing discursive struggles around its political implications and meaning. More specifically, there is a clash between the dominant conceptualisation of water abundance as a foundation for rich economic, ecological, social, and cultural values and benefits, often espoused by members of the political and economic elite, e.g., for marketing purposes, and a more critical but less widespread conceptualisation of water abundance as a source of carelessness, lack of awareness, and poor water governance, typically put forth by more informed technical staff of the public sector and civil society activists. By providing a distinct treatment and discussion of the concept of water abundance, our research has relevance for other water-rich regions beyond the immediate regional context.

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“…Given the context of the water resources in urban and industrialized areas of Brazil and other developing countries, these streams are highly vulnerable because they receive effluent discharges from small industries and domestic sewage (Machado et al 2018;Galfi et al 2016;Beghelli et al 2015;Poustie and Deletic 2014;Jabeen et al 2014;Sandoval et al 2014;Alves et al 2013;Medeiros et al 2013;Zeilhofer et al 2010;Medeiros et al 2009;Moreira and Fazza 2008;Jamwal et al 2008;Daniel et al 2002;Martinelli et al 1999), which are not monitored or controlled by the environmental agencies. Therefore, studies at this spatial scale can assist in strategic planning and the management of natural resources at municipal and local scales, as well as encourage public policies focusing on water security and the improvement of water quality in urban and rural streams.…”

Section: Introductionmentioning

confidence: 99%

Water quality, pollutant loads, and multivariate analysis of the effects of sewage discharges into urban streams of Southeast Brazil

Medeiros

Tresmondi

Queiroz

et al. 2017

Energ. Ecol. Environ.

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Water demand, pollution, and climate change threaten water security in industrialized and urbanized regions worldwide, especially in developing countries. Investments in massive infrastructure have often not met the water needs of the population, requiring water resource managers to adopt new approaches, such as decentralized and regionalized management at the micro-basin scale. However, little is known about the impact of anthropogenic activities on the water quality and vulnerability of streams that cross urban areas and feed into the main rivers and reservoirs supplying cities and industrial regions. The main goals of this research were to evaluate the water quality, pollutant loads, and effect of untreated sewage discharges in streams of the Piracicaba river basin, in the municipality of Americana, Southeast Brazil. The water quality parameters evaluated were as follows: pH, dissolved oxygen, electrical conductivity, biochemical oxygen demand, inorganic phosphorus, total phosphorus, total nitrogen, real colour, turbidity, total dissolved solids, metals (Ba, Cr, Cu, Ni, Pb, Cd, and Zn), total coliforms, and Escherichia coli. Descriptive statistics and multivariate analyses were performed. The results revealed chemical and biological degradation of the water resources, and vulnerability of the urban streams due to the release of untreated sewage into these waterways. The findings indicate the need for an immediate implementation of policies to monitor and control discharges of industrial effluents into the sewage collection systems, as well as discharges of sewage into rainwater drainage systems, together with the maintenance of green spaces.

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Land use effects on water quality in the urban agglomeration of Cuiabá and Várzea Grande, Mato Grosso State, central Brazil

Cited by 25 publications

References 37 publications

Metais potencialmente tóxicos em rios a montante do Pantanal Norte

Metais potencialmente tóxicos em rios a montante do Pantanal Norte

The Paradox of Water Abundance in Mato Grosso, Brazil

Water quality, pollutant loads, and multivariate analysis of the effects of sewage discharges into urban streams of Southeast Brazil

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