Título:	Nitrate in groundwater in Ribeirão Preto city area in Brazil.
Autoria:	CERDEIRA, A. L. PARAIBA, L. C. KATAGUIRI, K. BOLONHEZI, D. GOMES, M. A. F. SPADOTTO, C. A. FARJANI NETO, C. MATALLO, M. B. MOMM, H.
Afiliação:	ANTONIO LUIZ CERDEIRA, CNPMA; LOURIVAL COSTA PARAIBA, CNPMA; KAREN KATAGUIRI, Embrapa Meio Ambiente (Bolsista); Denizart Bolonhezi, IAC; MARCO ANTONIO FERREIRA GOMES, CNPMA; CLAUDIO APARECIDO SPADOTTO, SGTE; CARLOS FARJANI NETO, DAERP; MARCUS BARIFOUSE MATALLO, Instituo Biológico de Campinas; HENRIQUE MOMM, University of Mississippi.
Ano de publicação:	2008
Referência:	Pesticidas: Revista de Ecotoxicologia e Meio Ambiente, Curitiba, v. 18, p.1-8, jan./dez. 2008.
Conteúdo:	The region of Ribeirão Preto City, southeastern Brazil, is an important sugar cane and recharge area for groundwater of the Guarany aquifer. This research was conducted to evaluate the potential contamination of groundwater with nitrates in the area and in surrounding municipal wells. No significant amount of nitrate was found in the recharge agricultural area. However, nitrate levels were detected at concentrations higher than the Maximum Concentration Level (MCL) of 6.0 mg/L in a downtown, urban, well located away from agriculture, which had no history of nitrogen application, reaching values higher than the maximum risk coefficient for infants (RC) of 1.0.
Thesagro:	Águas subterrâneas Poluição da água Nitrato
NAL Thesaurus:	Groundwater contamination Nitrates
Palavras-chave:	Aqüífero Guarani Ribeirão Preto
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPMA)