Environmental diagnosis of metals in streams near sugarcane cultivation areas: current and historical analysis in the central region of the State of São Paulo
Título del documento: Environmental diagnosis of metals in streams near sugarcane cultivation areas: current and historical analysis in the central region of the State of São Paulo
Revista: Anais da Academia Brasileira de Ciencias
Base de datos: PERIÓDICA
Número de sistema: 000424361
ISSN: 0001-3765
Autores: 1
1
2
2
2
Instituciones: 1Universidade de Sao Paulo, Escola de Engenharia de Sao Carlos, Sao Carlos, Sao Paulo. Brasil
2Universidade de Araraquara, Programa de Doutorado em Desenvolvimento Territorial e Meio Ambiente, Araraquara, Sao Paulo. Brasil
Año:
Periodo: Sep
Volumen: 90
Número: 3
Paginación: 2711-2720
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés 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
Disciplinas: Biología
Palabras clave: Ecología,
Biología acuática,
Vigilancia ambiental,
Contaminación del agua,
Contaminación por metales,
Vegetación riparia,
Invertebrados acuáticos,
Bioacumulación
Keyword: Ecology,
Aquatic biology,
Environmental surveillance,
Water pollution,
Metal pollution,
Riparian vegetation,
Aquatic macroinvertebrates,
Bioaccumulation
Texto completo: Texto completo (Ver HTML)