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

Quimica nova

Santos, Ademir do¹  Strixino, Susana Trivinho²  Corbi, Juliano José²  Del Grande, Marcelo³ 

[1] Universidade Estadual Paulista, Araraquara;Universidade Federal de São Carlos, São Carlos;Universidade de São Paulo, São Carlos

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 cultivationin the State of São Paulo has expanded in the last years, with an annualproduction of 200•106 t in an area of 2.5• 106hectares. The use of herbicides, pesticides and fertilizers in sugar cane plantations,together with deforestation of riparian vegetation, have caused impacts on thehydric resources of the adjacent areas. The aim of this work is to evaluatethe influence of sugar cane plantations on streams in the central region ofthe State of São Paulo, studying 16 organochlorinated compounds and 7metals (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 organochlorinatedcompounds in streams without riparian vegetation when compared to forested areas.

【 授权许可】

CC BY