Elemental composition of PM10 and PM2.5 in urban environment in South Brazil

被引：52

作者：

Braga, CF

Teixeira, EC

Meira, L

Wiegand, F

Yoneama, ML

Dias, JF

机构：

[1] Fdn Estadual Protecao Ambiental, BR-90030020 Porto Alegre, RS, Brazil

[2] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

[3] Univ Vale Rio dos Sinos, Programa Pos Grad Geol, BR-93001970 Sao Leopoldo, RS, Brazil

来源：

ATMOSPHERIC ENVIRONMENT | 2005年 / 39卷 / 10期

关键词：

particulate matter; PM10; PM2.5; HVPM10; dichotomous; PIXE; factor analysis;

D O I：

10.1016/j.atmosenv.2004.12.004

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The purpose of the present study is to analyze the elemental composition and the concentrations of PM10 and PM2.5 in the Guaiba Hydrographic Basin with HV PM10 and dichotomous samplers. Three sampling sites were selected: 8 degrees Distrito, CEASA and Charqueadas. The sampling was conducted from October 2001 to December 2002. The mass concentrations of the samplers were evaluated, while the elemental concentrations of Si, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu and Zn were determined using the Particle-Induced X-ray Emission (PIXE) technique. Factor Analysis and Canonical Correlation Analysis were applied to the chemical and meteorological variables in order to identify the sources of particulate matter. Industrial activities such as steel plants, coal-fired power plants, hospital waste burning, vehicular emissions and soil were identified as the sources of the particulate matter. Concentration levels higher than the daily and the annual average air quality standards (150 and 50 mu g m(-3), respectively) set by the Brazilian legislation were not observed. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1801 / 1815

页数：15

共 61 条

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