Evaluation of the quality of the water body of the Tibagi river in the region of Ponta Grossa using principal components analysis (PCA)

Química Nova

Guimarães, Orliney Maciel¹  Universidade Federal do Paraná, Curitiba, Brasil¹  Zimmermann, Ciro Maurício¹  Peralta-Zamora, Patricio Guillermo¹  Universidade Tecnológica Federal do Paraná, Ponta Grossa, Brasil¹ 

关键词: Tibagi River;    PCA;    water quality.;   

DOI  :  10.1590/S0100-40422008000700025

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The aim of this paper was to evaluate alterations in the quality of the water of the Tibagi River caused by the urban and industrial activities in the region of Ponta Grossa. The study involved the monitoring of physico-chemical and microbiological parameters of the water body, which were evaluated by a principal components analysis routine. Sample collections were carried out monthly during one year (October of 2005 to September of 2006), at 3 sampling points: upstream and downstream of the industrial district and downstream from the city of Ponta Grossa. The principal components analysis showed the effect of point sources associated with industrial activity, which contribute to the rise of total concentration of amoniacal nitrogen and the reduction of dissolved oxygen in the studied region.

【 授权许可】

Unknown