Interpretation of seasonal variation of metals and abiotic properties in a tropical lake using multivariate analysis and MINTEQA2 program

被引：5

作者：

Barreto, WJ

Ribeiro, MR

Solci, MC

Scarminio, IS

Nozaki, J

de Oliveira, E

Barreto, SRG ^{[1
]}

机构：

[1] Londrina State Univ, Dept Chem, Lab Environm Phys Chem, BR-86051990 Londrina, Parana, Brazil

[2] Maringa State Univ, Dept Chem, BR-87020900 Maringa, Parana, Brazil

[3] Univ Sao Paulo, Inst Chem, BR-05508 Sao Paulo, Brazil

[4] Maringa State Univ, Grad Program Ecol Aquat & Continental Environm, Maringa, Parana, Brazil

来源：

ANALYTICAL SCIENCES | 2005年 / 21卷 / 03期

关键词：

D O I：

10.2116/analsci.21.209

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The hydrological cycle of Lake Ipe and the principal parameters that could affect its abiotic parameters and its metal (Fe, Mn, and Cd) concentrations were investigated. A detailed study of seasonal variations using Principal Components Analysis (PCA) for the most relevant metals (Fe, Mn and Cd) was performed, assisted by the MINTEQA2 geochemical equilibrium program using 15 water abiotic parameters. The abiotic variables and metals in the lake were governed by the hydrological regimen of the Parana River and by the occurrence of occasional flood pulses and rainfall. The occurrence of cadmium is a concern; its presence could be due to industrial or agricultural activities or even to a natural geochemical process.

引用

页码：209 / 214

页数：6