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Concentration and Source Origin of Trace Metals in PM2.5 Collected at Selected Canadian Sites within the Canadian National Air Pollution Surveillance Program

  • Valbona CeloEmail author
  • Ewa Dabek-Zlotorzynska
Chapter
Part of the Environmental Science and Engineering book series (ESE)

Abstract

Airborne particulate matter (PM) is a complex mixture of thousands of organic and inorganic species that emerge from a wide range of natural and anthropogenic sources. Numerous epidemiological studies have confirmed that PM and especially the respirable fraction of PM, the PM2.5 (for particles < 2.5 μm diameter), has adverse effects on human health. Although there is no evidence to pinpoint any single feature or component of PM as the cause for the observed epidemiological effects, it is apparent that metals contribute, at least in part, to the toxic and carcinogenic effects associated with exposure to airborne PM and for this reason have been the object of several epidemiological studies (Goldoni et al. 2006; Kawata et al. 2007; Lippmann et al. 2006). In addition, trace metals are proven to be useful tracers and are extensively used to identify sources of emissions to be targeted by the emission reduction policies (Querol et al. 2001; Lee et al. 2003; Gotschi et al. 2005; Querol et al. 2006; Querol et al. 2007b; Viana et al. 2007; Jeong et al. 2008). Therefore, monitoring of elemental composition of PM has become a crucial part of air quality programs in many countries around the world.

Keywords

Trace Metal Inductively Couple Plasma Mass Spectrometry Source Apportionment Trace Metal Concentration Spearman Rank Order Correlation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors would like to thank Mr. Tom Dann for his help with the NAPS results database, and Mr. David Mathieu, and all others who contributed to the analysis of the mass and elemental composition of the particle samples. We also gratefully acknowledge the provincial, municipal, and federal regional agencies and site operators for their cooperation.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Analysis and Air Quality Section, Air Quality Research Division, Atmospheric Science and Technology Directorate, Science and Technology BranchEnvironment CanadaOttawaCanada

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