Fatores que governam a especiação do cobre em ambientes aquáticos urbanos: evidências da contribuição de sulfetos solúveis Factors governing copper speciation in urban freshwaters: evidences on the contribution of soluble sulfides

Química Nova

卷:30

关键词: sulfide;    copper speciation;    natural waters;   

DOI  :  10.1590/S0100-40422007000200018

来源: DOAJ

【 摘 要 】

Copper speciation and behavior in different rivers located in the city of Curitiba were evaluated in this work. Sampling locations were selected to cover different levels of urbanization regarding their anthropogenic occupation and land use. Results showed that in highly-developed areas, both organic matter and dissolved sulfides were able to control copper speciation. Dissolved sulfide species were the major complexing agent in areas where dissolved oxygen levels are low. Finally, it was demonstrated that in urban areas anthropogenic factors such as sewage inputs and occupation of the drainage basin are the key aspects controlling copper dynamics and speciation in river waters.

【 授权许可】

Unknown