%0 Journal Article
%T Avalia£¿£¿o da qualidade das ¨¢guas do Rio S£¿o Francisco Falso, tribut¨¢rio do reservat¨®rio de Itaipu, Paran¨¢
%A Silva
%A Gilmar Silv¨¦rio da
%A Miola
%A Sandra
%A Silva
%A Gilberto Silv¨¦rio da
%A Sousa
%A Eliane Rodrigues de
%J Ecl¨¦tica Qu¨ªmica
%D 2010
%I Scientific Electronic Library Online
%R 10.1590/S0100-46702010000300011
%X an environmental assessment about phosphorus and nitrogen species was carried out in waters of s£¿o francisco falso river, tributary of itaipu reservoir. results from four field campaigns showed that trophic state vary of oligotrophic to mesotrophic, being the latter observed under rain influence. among nitrogen species, no2 presented concentration above guide-value recommended by canadian environmental agency, what means a risk for aquatic life. in comparison to oco¨ª river, another tributary of itaipu reservoir, s£¿o francisco's waters showed better quality.
%K eutrophication
%K hydrographic basin
%K trophic state index.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-46702010000300011&lng=en&nrm=iso&tlng=en