Publication detail

Assessment of potential heavy metal pollution of road dust in arid urban area

CHRÁST, P. PECINA, V. CHALABALA, J. BRTNICKÝ, M. KYNICKÝ, J. VAŠINOVÁ GALIOVÁ, M.

Original Title

Assessment of potential heavy metal pollution of road dust in arid urban area

Type

abstract

Language

English

Original Abstract

In urbanized areas, heavy metal contamination represents a major issue in terms of environmental quality and health risks related to chronic exposition. Traffic routes are one of major sources of heavy metals in dust, which can be easily transported into environment through wind or rainfall. the main constituents of road dust are industrial ashes, seasonal products of chemical treatment of road surfaces and abrasive emissions from roads and vehicles. Up to 75% of road dust consists of particles smaller than 50 micrometers. These dust particles adsorb higher contents of heavy metals due to their high specific surface and are most readily transported into surrounding environment. Road dust samples discussed in scope of this study originate from roads in Ulaanbaatar, Mongolia, as a city with high degree of air pollution originating from extensive coal burning and industry. After sampling, drying and sieving, the samples were processed into three grain size fractions (<45 microns, 45-63 microns, 63-125 microns). Aqua regia leachates of the samples were obtained using microwave digestion system and analysed using inductively coupled plasma mass spectrometry (ICP-MS) to obtain contents of As, Cd, Cr, Cu, Ni, and Pb. Initial results after analysis of the grain size fraction 45-63 microns do not indicate significant elevation in obtained heavy metal contents compared to published data on road dust in other parts of the world. Obtained contents are utilized for visualization of content profile changes between city centre and adjacent environs. The second part of this study focuses on statistics and correlation between individual heavy metals for further differentiation of heavy metal mobility between individual grain size fractions.

Keywords

environmental chemistry, inductively coupled plasma mass spectrometry, road dust, Mongolia, urban pollution, air pollution

Authors

CHRÁST, P.; PECINA, V.; CHALABALA, J.; BRTNICKÝ, M.; KYNICKÝ, J.; VAŠINOVÁ GALIOVÁ, M.

Released

26. 11. 2020

Publisher

Vysoké učení technické v Brně, Fakulta chemická

Location

Brno

ISBN

978-80-214-5920-0

Book

Studentská konference Chemie je život 2020 - sborník abstraktů

Edition number

první

Pages from

77

Pages to

78

Pages count

2

URL

https://www.fch.vut.cz/vav/konference/sok/vystupy/sbornik-abstrakty-konference-2020-pdf-p198641

BibTex

@misc{BUT169251,
  author="Petr {Chrást} and Václav {Pecina} and Jan {Chalabala} and Martin {Brtnický} and Jindřich {Kynický} and Michaela {Vašinová Galiová}",
  title="Assessment of potential heavy metal pollution of road dust in arid urban area",
  booktitle="Studentská konference Chemie je život 2020 - sborník abstraktů",
  year="2020",
  edition="první",
  pages="77--78",
  publisher="Vysoké učení technické v Brně, Fakulta chemická",
  address="Brno",
  isbn="978-80-214-5920-0",
  url="https://www.fch.vut.cz/vav/konference/sok/vystupy/sbornik-abstrakty-konference-2020-pdf-p198641",
  note="abstract"
}