Hana Cigánková This email address is being protected from spambots. You need JavaScript enabled to view it.1,2, Pavel Mikuška2, Jitka Hegrová3, Petra Pokorná4, Jaroslav Schwarz4, Jozef Krajčovič1

1 Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech Republic
2 Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Veveří 97, 602 00 Brno, Czech Republic
3 Division of Sustainable Transport and Road Structures Diagnostics, Transport Research Center, Líšeňská 33a, 636 00 Brno, Czech Republic
4 Department of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 2/135, 165 02 Prague 6, Czech Republic


Received: September 10, 2020
Revised: November 3, 2020
Accepted: November 6, 2020

 Copyright The Author's institutions. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited. 


Download Citation: ||https://doi.org/10.4209/aaqr.2020.09.0556  


Cite this article:

Cigánková, H., Mikuška, P., Hegrová, J., Pokorná, P., Schwarz, J., and Krajčovič, J. (2020). Seasonal Variation and Sources of Elements in Urban Submicron and Fine Aerosol in Brno, Czech Republic. Aerosol Air Qual. Res. https://doi.org/10.4209/aaqr.2020.09.0556


HIGHLIGHTS

  • Changes in concentration of elements in PM1 and PM2.5 were measured in four seasons.
  • 21 elements associated with PM were analysed using ICP-MS.
  • Determination of element sources using enrichment factor and PMF.
  • Cancer risk and hazard index values indicated no health treat to children and adults.
 

ABSTRACT


Seasonal variation and sources of elements bound to urban aerosol were studied. Fine (PM2.5) and submicron (PM1) aerosol was collected at 2–week campaigns during four seasons in 2018. The total concentration of 21 elements accounted on average for 3.5% of the total PM2.5 mass concentration and 2.0% of the total PM1 mass concentration. Seasonal differences in the element concentrations in PM1 and PM2.5 were found. Most elements in both aerosol size fractions had a higher concentration in winter or autumn than in summer or spring. Enrichment factor analysis showed extremely highly enriched Cd, Sb and Se in both fractions. Positive matrix factorization (PMF) analysis revealed 3 sources (residential heating, resuspension and anthropogenic background) for PM1 and 3 sources (residential heating, resuspension and brake abrasion) for PM2.5 aerosol in Brno. In addition, health risk assessment of possibly toxic elements was calculated.





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