Data/hora: 16/06/2024 03:56:18

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil	
Autores: 	Jarek,Tiago Miguel; Souza,Jorge Luiz Moretti de; Favaretto,Nerilde; Ruaro,Lucimeris.	
Data: 	2016-04-01	
Ano: 	2016	
Palavras-chave: 	Coliform; Watershed; Land use.	
Resumo: 	ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall increased the probability of thermo tolerant coliforms exceeding the limit allowed under legislation. In regards to thermo tolerant coliforms in the analyzed period, the water from only one reservoir was in accordance with the legislation for the quality of water to irrigate vegetables that are consumed raw. Results of this study are an alert to the local government for the necessity of environmental preservation to maintain the water quality of the county.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400626	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/0103-8478cr20150420	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.46 n.4 2016	
Fonte: 	info:eu-repo/semantics/openAccess