Environmental diagnostic of metals and organochlorinated compounds in streams near sugar cane plantations activity (São Paulo State, Brazil)

Química Nova

Del Grande, Marcelo¹  Universidade Federal de São Carlos, São Carlos¹  Strixino, Susana Trivinho¹  Santos, Ademir do¹  Corbi, Juliano José¹  Universidade Estadual Paulista, Araraquara¹  Universidade de São Paulo, São Carlos¹ 

关键词: sugar cane cultivation;    heavy metals;    organochlorinated compounds.;   

DOI  :  10.1590/S0100-40422006000100013

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Sugar cane cultivation in the State of São Paulo has expanded in the last years, with an annual production of 200•106 t in an area of 2.5• 106 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.

【 授权许可】

Unknown