Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/17811
Título: Environmental quality evaluation of the Vacacaí River, Rio Grande do Sul, Brazil
Autor: Kochhann, Daiani
Behr, Everton Rodolfo
Chaves, Adilson de
Mesko, Márcia Foster
Dressler, Valderi Luiz
Flores, Érico M.M. de
Baldisserotto, Bernardo
Palavras-chave: Anthropogenic Sources
Chemical Compositions
Dry Seasons
Environmental Quality
Rio Grande Do Sul
Water Chemistry
Water Monitoring
Water Parameters
Alkalinity
Aluminum
Beryllium
Calcium
Drought
Dysprosium
Erbium
Europium
Gadolinium
Lead
Lutetium
Magnesium
Manganese
Metals
Neodymium
Nickel
Praseodymium
Samarium
Strontium
Thulium
Titanium
Uranium
Water Quality
Ytterbium
Rivers
Anthropogenic Source
Autumn
Chemical Composition
Drinking Water
Dry Season
Environmental Quality
River
Temperature
Water Chemistry
Water Quality
Winter
Rio Grande Do Sul
Vacaria
Data do documento: 2013
Revista: Environmental Earth Sciences
Encontra-se em: Volume 70, Número 4, Pags. 1727-1733
Abstract: The water quality of the Vacacaí River was assessed at different sites in the period between winter 2005 and autumn 2006. All samples were analyzed for 52 elements (Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Th, Li, Be, Mg, Al, Ca, V, Cr, Mn, Fe, Ni, Co, Cu, Zn, Ga, As, Se, Rb, Sr, Ag, Cd, In, Cs, Ba, Tl, Pb, Bi, U, Na, K, Hg, B, Mo, Sn, Te, Ti), temperature, pH, ammonia, and alkalinity levels. Water from the Vacacaí River ranged from slightly acidic to alkaline. No difference was observed in the chemical composition at different sites of the Vacacaí River. Levels of Ba, Ca, Sr and Mg increase in the dry seasons and reach their highest concentrations in autumn; Be and U decrease in the dry season and reach their highest concentration in spring. Al, Fe, Cr, Ni, Th, U Mn, Ca and Mg are highly positively related, indicating a common origin. Se and Cu are probably from anthropogenic source, from the rice crops of the margins of the river. Waterborne Al and Fe levels were above the desirable level for drinking water at all sites during all seasons. These results demonstrate the need for constant monitoring of water parameters, which is crucial to ensure water quality for the population of this region. © 2013 Springer-Verlag Berlin Heidelberg.
DOI: 10.1007/s12665-013-2260-z
Aparece nas coleções:Artigos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.