TRACE ELEMENTS IN ATMOSPHERIC PARTICULATE MATTER FROM AN AGRO-INDUSTRIAL REGION IN SOUTHEASTERN BRAZIL

被引：1

作者：

de Oliveira, Patricia Lopes ^{[1
]}

Figueiredo, Bernardino Ribeiro ^{[1
]}

Cardoso, Arnaldo Alves ^{[2
]}

Angelica, Romulo Simoes ^{[3
]}

机构：

[1] Univ Estadual Campinas, Inst Geociencias, R Joao Pandia Calogeras 51, BR-13083970 Campinas, SP, Brazil

[2] Univ Estadual Paulista, Inst Quim, BR-14800900 Araraquara, SP, Brazil

[3] Fed Univ Para, Ctr Geociencias, BR-66075110 Belem, Para, Brazil

来源：

QUIMICA NOVA | 2013年 / 36卷 / 04期

关键词：

trace elements; atmospheric particulate matter; biomass burning; CHEMICAL-COMPOSITION; SIZE DISTRIBUTIONS; AEROSOL-PARTICLES; AREA; DEPOSITION; EMISSIONS; FINE;

D O I：

10.1590/S0100-40422013000400009

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Trace element concentrations were measured in atmospheric particulate matter collected in 2009 and 2010, in a Brazilian region influenced by pre-harvest burning of sugar cane crops. For coarse particles, high concentrations of Al, Fe, K and Ca suggested that re-suspended soil dust was the main source of aerosol trace elements, subsequently confirmed by XRD analysis. High levels of K, Zn, As, Cd and Pb were found in fine particles, confirming the contribution of biomass burning and vehicle emissions, whereas Na, Al, K, Fe and Zn were the representative elements in ultrafine particles, influenced by a diversity of sources.

引用

页码：533 / +

页数：8

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