CHEMICAL COMPOSITION OF WET PRECIPITATION AT METROPOLITAN PORTO ALEGRE, BRAZIL, 2005-2007

被引：11

作者：

Migliavacca, Daniela Montanari ^{[1
,2
]}

Teixeira, Elba Calesso ^{[1
,3
]}

Raya Rodriguez, Maria Teresa ^{[2
]}

机构：

[1] Univ Feevale, BR-93352000 Novo Hamburgo, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Inst Biociencias, BR-91509900 Porto Alegre, RS, Brazil

[3] Fundacao Estadual Protecao Ambiental Luis Henriqu, BR-90030020 Porto Alegre, RS, Brazil

来源：

QUIMICA NOVA | 2012年 / 35卷 / 06期

关键词：

wet precipitation; principal components analysis; cluster analysis; ATMOSPHERIC PRECIPITATION; AMMONIUM CONCENTRATIONS; TRACE-METALS; RURAL SITE; MAJOR IONS; URBAN SITE; RAINWATER; DEPOSITION; CHEMISTRY; EMISSIONS;

D O I：

10.1590/S0100-40422012000600002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CHEMICAL COMPOSITION OF WET PRECIPITATION AT METROPOLITAN PORTO ALEGRE, BRAZIL, 2005-2007. This work aims to quantify the wet precipitation the Metropolitan Area of Porto Alegre (MAPA), in southern Brazil, through the analysis of major ions (by ion chromatography) and metallic elements (ICP/AES). By principal components analysis and cluster analysis was possible to identify the influence of natural and anthropic sources in wet precipitation. The results indicated of the higher contribution to the ions NH4+, SO42- and Ca2+. Thus it was possible to identify the contribution of anthropogenic sources in wet precipitation in the study area, such as power plants, oil refineries, steel and vehicle emissions.

引用

页码：1075 / 1083

页数：9

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