Composição química da precipitação úmida da região metropolitana de Porto Alegre, Brasil, 2005- 2007

Química Nova

Daniela Montanari Migliavacca²  Elba Calesso Teixeira¹  Maria Teresa Raya Rodriguez¹ 

[1] ,Universidade Federal do Rio Grande do Sul Instituto de Biociências Porto Alegre RS ,Brasil

关键词: wet precipitation;    principal components analysis;    cluster analysis;   

DOI  :  10.1590/S0100-40422012000600002

来源: SciELO

【 摘 要 】

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+, SO4(2-) 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.

【 授权许可】

CC BY-NC   
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