Titre:	Geoquímica das águas da bacia hidrográfica do Rio Descoberto, Brasília/DF - Brasil
Autre(s) titre(s):	Geochemistry of the waters of the Descoberto River hydrographic basin, Brasília/DF - Brazil
Auteur(s):	Carmo, Marciléia Silva do Boaventura, Geraldo Resende Oliveira, Edivan Costa
Assunto::	Rio Descoberto Distrito Federal (Brasil) Água - geoquímica
Date de publication:	aoû-2005
Editeur:	Sociedade Brasileira de Química
Référence bibliographique:	CARMO, Marciléia Silva do; BOAVENTURA, Geraldo Resende; OLIVEIRA, Edivan Costa. Geoquímica das águas da bacia hidrográfica do Rio Descoberto, Brasília/DF - Brasil. Química Nova, São Paulo, v. 28, n. 4, p. 565-574, jul./ago. 2005. DOI: http://dx.doi.org/10.1590/S0100-40422005000400002. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000400002&lng=pt&nrm=iso. Acesso em: 12 jan. 2021.
Abstract:	The objective of this paper is to investigate the physical and chemical quality of the water of the Descoberto River during the dry and rainy seasons by measuring pH, temperature, electric conductivity, total dissolved solids, turbidity, color, alkalinity and NO3-, SO4(2-), PO4(3-), NH4+, Cl- and HCO3-, and the elements Sr, Mo, Cd, Y, Ti, Ca, V, Mg, Fe, Si, Ni, Zr, Cu, Al, Cr, Mn, Ba, Co, Zn, P, Na and K. The results showed high concentrations in both seasons, with dilution along the course of the river, minimizing for a while problems that compromise the quality of the water of this source. However, a progressive deterioration can occur due to an increase in the discharge of pollutants, resulting from population growth, agricultural activities and other factors.
Licença::	Química Nova - Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons (CC BY NC 4.0). Fonte: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000400002&lng=pt&nrm=iso&tlng=pt. Acesso em: 12 jan. 2021.
DOI:	https://dx.doi.org/10.1590/S0100-40422005000400002
Collection(s) :	Artigos publicados em periódicos e afins

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