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	Provedor de dados Anais da ABC (AABC) (3) Autor Hirata,Ricardo (3) Almodovar,Marta (1) Bertolo,Reginaldo (1) Bourotte,Christine (1) Conicelli,Bruno P. (1) Fernandes,Amélia (1) Suhogusoff,Alexandra (1) Mais... Palavra-chave Groundwater (2) Aquifer (1) Aquifer recharge (1) Chromium (1) Drought (1) Ground-water (1) Indicators (1) Integrated use of water (1) Management (1) Natural contamination (1) Public water supply (1) São Paulo (1) Water resources management (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2012 (1) 2009 (1) 2007 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Groundwater resources in Brazil: a review of possible impacts caused by climate change Anais da ABC (AABC) Hirata,Ricardo; Conicelli,Bruno P.. Groundwater has a strategic role in times of climate change mainly because aquifers can provide water for long periods, even during very long and severe drought. The reduction and/or changes on the precipitation pattern can diminish the recharge mainly in unconfined aquifer, causing available groundwater restriction. The expected impact of long-term climate changes on the Brazilian aquifers for 2050 will lead to a severe reduction in 70% of recharge in the Northeast region aquifers (comparing to 2010 values), varying from 30% to 70% in the North region. Data referring to the South and Southeast regions are more favorable, with an increase in the relative recharge values from 30% to 100%. Another expected impact is the increase in demand and the decrease in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Drought; Groundwater; Aquifer recharge; Integrated use of water; Water resources management. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200006 Groundwater resources in the State of São Paulo (Brazil): the application of indicators Anais da ABC (AABC) Hirata,Ricardo; Suhogusoff,Alexandra; Fernandes,Amélia. Indicators, for groundwater resources, have mostly been employed to define the present status and the degradation tendency, regarding both quantity (under- or overexploitation) and quality (natural and anthropic contamination). This work presents the application of indicators in order to draw a picture of the groundwater resources situation in the 22 Water Resource Management Units (WRMU) of the State of São Paulo. The seven Indicators (I1 to I7) applied provide a general overview of groundwater dependence (I1, I2), availability (I3, I4), and quality (I5, I6, I7). Considering public supply (Indicator 1), one observes that 9 WRMUs show high (>50% of the population supplied by groundwater), 6, intermediate (49-25%), and 7, low (<24%) dependence on... Tipo: Info:eu-repo/semantics/article Palavras-chave: Groundwater; São Paulo; Public water supply; Management; Indicators. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000100016 Natural occurrence of hexavalent chromium in a sedimentary aquifer in Urânia, State of São Paulo, Brazil Anais da ABC (AABC) Bourotte,Christine; Bertolo,Reginaldo; Almodovar,Marta; Hirata,Ricardo. Anomalous concentrations of hexavalent chromium have been detected in ground-water of the Adamantina Aquifer inat least 54 municipalities located in the northwestern region of the State of São Paulo, southeast Brazil, occasionallyexceeding the permitted limit for human consumption (0.05 mg.L-1). An investigation was conducted in the municipality of Urânia, where the highest concentrations of chromium were detected regionally. It was defined that the originof this contamination is natural, since high concentrations of chromium were detected in aquifer sandstones (averageof 221 ppm) and also in pyroxenes (6000 ppm), one of the main heavy minerals found in the sediments. Besides, noother possible diffuse or point sources of contamination were observed in the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromium; Ground-water; Aquifer; Natural contamination. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200009 Registros recuperados: 3 Primeira ... 1 ... Última

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