Abstract
One of the main challenges in highly populated cities such as Tehran is air pollution, which originates mainly from rapid and irregular urbanization and industrialization. This study was carried out to investigate trace elements contamination in airborne dust of Tehran, the capital of Iran. Dust samples were collected from 44 different sites on a monthly basis from March 2016 to March 2017. Results of trace elements pollution using three factors of enrichment factor, contamination factor and pollution load index, revealed that the pollution has spread in all seasons and its highest amount was observed in the cold seasons, the results of these indices also showed Pb, Zn, Cd and As play an important role in air pollution in Tehran. Three main groups were identified in the sources analysis study: (1) Co and Fe, (2) As, (3) Ni, Cr, Cd, Pb and Zn. The first group does not seem to be much influenced by human activities and originates mostly from geogenic sources; but the second and third groups are mostly from anthropogenic sources. Traffic, fossil fuel combustion and industrial activities are among the most important human factors that have a significant impact on the amount of Trace elements in the dust.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
