Monitoring trace elements by nuclear techniques in PM10 and PM2.5

被引：21

作者：

Freitas, MC ^{[1
]}

Almeida, SM ^{[1
]}

Reis, MA ^{[1
]}

Oliveira, OR ^{[1
]}

机构：

[1] Inst Tecnol & Nucl, P-2686953 Sacavem, Portugal

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 505卷 / 1-2期

关键词：

PM2.5; PM10; nuclear techniques; iron; potassium; zinc;

D O I：

10.1016/S0168-9002(03)01114-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

As part of a contract for air quality monitoring at an urban waste incinerator neighborhood, measurements of PM10 and PM2.5 are being routinely evaluated. Two samples are collected for 24 h at the weekend and a working day, using a, Gent collector, which separates the particulate in two fractions: PM2.5 and PM2.5-10. Filters are polycarbonate Nuclepore, sized 47 mm, which, for analysis, are cut as: one half to be analyzed by instrumental neutron activation analysis (INAA) and one quarter for proton induced X-rays emission (PIXE). Both techniques are multielemental. determining together around 25 chemical elements. Comparison of results is just possible for potassium, iron and zinc, which are compared in this work. A better agreement is obtained in PM2.5 suggesting a homogeneity trend. Fe and K compare quite well and Zn may show quite different results. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：430 / 434

页数：5

共 10 条

[1]

ALMEIDA SM, 2003, IN PRESS J RADIOANAL

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