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Magnetic Properties and Size of Microscopic Pollutant Particles in the Urban Area of Coimbra

Published online by Cambridge University Press:  03 October 2008

C.R. Gomes ,
A.M. Dinis ,
A.F. Rocha ,
E.M.C. Gomes  and
L.F. Neves
C.R. Gomes
Affiliation:
CGUC, Department of Earth Sciences, University of Coimbra, Largo Marquês de Pombal, 3000-272 Coimbra, Portugal
A.M. Dinis
Affiliation:
CEF, Department of Botany, University of Coimbra, Calçada Martim de Freitas, 3001-455 Coimbra, Portugal
A.F. Rocha
Affiliation:
CGUC, Department of Earth Sciences, University of Coimbra, Largo Marquês de Pombal, 3000-272 Coimbra, Portugal
E.M.C. Gomes
Affiliation:
CGeociências UC, Department of Earth Sciences, University of Coimbra, Largo Marquês de Pombal, 3000-272 Coimbra, Portugal
L.F. Neves
Affiliation:
IMAR, Department of Earth Sciences, University of Coimbra, Largo Marquês de Pombal, 3000-272 Coimbra, Portugal

Abstract

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Pollutant particles of small size are produced and resuspended every day as a result of traffic. These particles, identified as particulate matter (PM10, PM2.5), can affect human health when inhaled, mostly the respiratory and cardiopulmonary systems. Some of these particles are ferromagnetic (s.l.) and their magnetic properties indicate their sources, composition and size. Coimbra is an inland city situated in the center of Portugal at a distance of 40 km from the coast. Coimbra has a total area of 320 km2 and a population of about 168.000. Motor vehicle traffic is the main source of air pollutant in the city. The main goal of this research is to assess pollution levels in the urban area of Coimbra using the magnetic properties of microscopic pollutant particles on Nerium oleander leaves.

Type
Abstract
Information
Microscopy and Microanalysis , Volume 14 , Supplement S3 , September 2008 , pp. 144 - 145
Copyright
Copyright © Microscopy Society of America 2008