Diagnóstico ambiental de metais e organoclorados em córregos adjacentes a áreas de cultivo de cana-de-açúcar (Estado de São Paulo, Brasil)
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Undergraduate course
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Publisher
Sociedade Brasileira de Química
Type
Article
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Acesso aberto
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Abstract
Sugar cane cultivation in the State of São Paulo has expanded in the last years, with an annual production of 200 10(6) t in an area of 2.5 10(6) hectares. The use of herbicides, pesticides and fertilizers in sugar cane plantations, together with deforestation of riparian vegetation, have caused impacts on the hydric resources of the adjacent areas. The aim of this work is to evaluate the influence of sugar cane plantations on streams in the central region of the State of São Paulo, studying 16 organochlorinated compounds and 7 metals (Cu, Fe, Cd, Zn, Mn, Cr and Ni) found in the sediments of 11 streams. The results show that there is a higher concentration of metals and organochlorinated compounds in streams without riparian vegetation when compared to forested areas.
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Keywords
sugar cane cultivation, heavy metals, organochlorinated compounds
Language
Portuguese
Citation
Química Nova. Sociedade Brasileira de Química, v. 29, n. 1, p. 61-65, 2006.
