Monitoring of the environmental pollution by trace element analysis in tree-rings using synchrotron radiation total reflection X-ray fluorescence

被引：30

作者：

Sirito de Vives, Ana Elisa

Moreira, Silvana

Boscolo Brienza, Sandra Maria

Silva Medeiros, Jean Gabriel

Tomazello Filho, Mario

Araujo Domingues Zucchi, Orgheda Luiza

do Nascimento Filho, Virgillo Franco

机构：

[1] Design Methodist Univ Piracicaba, Sch Civil Engn Architecture & Urban Design, BR-13450000 Santa Barbara Doeste, SP, Brazil

[2] Univ Estadual Campinas, FEC, Campinas, SP, Brazil

[3] Univ Sao Paulo, ESALQ, Sao Paulo, Brazil

[4] Univ Sao Paulo, FCFRP, Sao Paulo, Brazil

[5] Univ Sao Paulo, CENA, Sao Paulo, Brazil

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2006年 / 61卷 / 10-11期

关键词：

heavy metal; environmental contamination; tree-ring; total reflection X-ray fluorescence analysis;

D O I：

10.1016/j.sab.2006.08.007

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

This paper aims to study the environmental pollution in the tree development, in order to evaluate its use as bioindicator in urban and country sides. The sample collection was carried out in Piracicaba city, Sao Paulo State, which presents high level of environmental contamination in water, soil and air, due to industrial activities, vehicles combustion, sugar-cane leaves burning in the harvesting, etc. The species Caesalpinia peltophoroides ("Sibipiruna") was selected because it is widely used in urban forestation. Synchrotron Radiation Total Reflection X-ray Fluorescence technique (SR-TXRF) was employed to identify and quantify the elements and metals of nutritional and toxicological importance in the wood samples. The analysis was performed in the Brazilian Synchrotron Light Source Laboratory, using a white beam for excitation and a Si(Li) detector for X-ray detection. In several samples, P, K, Ca, Ti, Fe, Sr, Ba and Ph were quantified. The K/Ca, K/P and Pb/Ca ratios were found to decrease towards the bark. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1170 / 1174

页数：5

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