Data/hora: 13/06/2024 06:32:32

Provedor de dados: | 42
País: | Brazil
Título: | Environmental diagnosis of metals in streams near sugarcane cultivation areas: current and historical analysis in the central region of the State of São Paulo
Autores: | CORBI,JULIANO J.; COSTA,CAMILA G.; GORNI,GUILHERME R.; COLOMBO,VANESSA; RIOS,LEONARDO.
Data: | 2018-09-01
Ano: | 2018
Palavras-chave: | Aquatic biota; Aquatic invertebrates; Fertilizers; Riparian vegetation.
Resumo: | Abstract In Brazil, innumerable regions of native landcover have been removed and replaced by agricultural cultivation, especially of sugarcane. In this culture, the application of fertilizers containing metals has caused impacts on the water resources causing contamination of stream sediments and occasioning bioaccumulation of metals in aquatic invertebrates. In the year of 2006, an environmental diagnosis of metals in sediments of streams located near sugarcane cultivation areas and in streams located in preserved areas, was published. That study pointed to high concentrations of metals in stream sediments in agricultural areas. These streams have been monitored over the last 10 years conducting analyses of metals and monitoring possible changes in land use. In the present paper, a historical comparison of metals contamination in the sediments of the same streams is conducted, aiming to present a status of 10 years later, analyzing 5 metals (Zn, Cd, Mn, Cr and Fe) found in the sediments of 8 streams, five located in areas of sugarcane cultivation and three located in preserved areas. This study also shows that there is higher concentration of metals in the sediments of streams near sugarcane cultivation than in preserved areas. The temporal historical evaluation showed high concentrations of Cd in 2016 when compared to the year 2006 for streams near sugarcane cultivation.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602711
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201820170808
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.90 n.3 2018
Fonte: | info:eu-repo/semantics/openAccess