Pollution of potentially toxic metals in urban road dust in Dushanbe (Tajikistan)

Heavy metal contamination in the road dust due to traffic in the capital city of Tajikistan was investigated. Concentrations of potentially toxic elements (Ba, Cu, Cd, Co, Cr, Pb, Ni, Zn and As) in particle size of 63 μm were analyzed. The highest potentially toxic element concentration was Zn (312...

Full description

Saved in:
Bibliographic Details
Published in:E3S web of conferences 2019-01, Vol.99, p.4004
Main Authors: Nazriddinzoda, Khasan, Udachin, Valery, Blinov, Ivan, Shtenberg, Mikhail, Aminov, Pavel, Udachin, Nikolay
Format: Article
Language:English
Subjects:
Antimony
Atmospheric pollution deposition
Cadmium
Cement reinforcements
Chromium
Contamination
Copper
Dust
Heavy metals
Industrial pollution
Lead
Metals
Nickel
Roads
Soil contamination
Traffic volume
Zinc
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Heavy metal contamination in the road dust due to traffic in the capital city of Tajikistan was investigated. Concentrations of potentially toxic elements (Ba, Cu, Cd, Co, Cr, Pb, Ni, Zn and As) in particle size of 63 μm were analyzed. The highest potentially toxic element concentration was Zn (312 mg/kg), whereas the lowest was Co (5.3 mg/kg).The biggest contribution to road dust is atmospheric deposition due to metal traffic density makes slight contribution to heavy metal contamination. According to the calculation on enrichment factor (EF), heavy metals decrease in the order of Sb>Cd>As>Cu>Zn>Pb. The Dushanbe city road dust particles are potentially influenced by minimum three sources of metals including: urban sources (vehicles traffic, etc.); industrial sources (cement, reinforcement plant, etc.); geogenic sources (soils, dusts, rock weathering, etc.).
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/20199904004