Evaluating the Rate of Atmospheric Dust Deposition in Isfahan Province

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Faranak Motamedi
http://orcid.org/0000-0001-9508-8890
Mozhgan Ahmadi Nadoushan
http://orcid.org/0000-0002-9269-1317
Ahmad Jalalian
http://orcid.org/0000-0003-4135-2558

Abstract

The present study investigates seasonal and spatial variations in atmospheric dust deposition rate (DDR) and the concentration of dust-borne heavy metals in the eastern part of Isfahan as well as Segzi plain located in the central part of Iran. Dust samples were collected from nine different sites on a monthly basis from December 2016 to September 2017. The total concentrations of Pb and Zn were measured. The lowest value of DDR was observed in the winter due to low amount of precipitation, and the highest value was recorded in the summer. Seasonal distribution of the concentration of dust-borne heavy metals revealed that almost all the metals follow the pattern: fall ˃ spring ˃ summer. Spatial distribution of dust-borne Pb and Zn followed almost the same trend and the highest concentrations were observed in the western parts of the study area. It seems that fossil fuel, vehicle traffic, and industrial activities are the most important anthropogenic factors contributing to dust-borne heavy metals in the study area.    

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Author Biographies

Faranak Motamedi, Department of Environmental Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran Mailing address: Isfahan (Khorasgan) Branch, Islamic Azad University, Arghavanie St., Jey Sharghi St., Isfahan, Iran

Faranak Motamedi received her Master in environmental science from Islamic Azad University, Isfahan branch.

Mozhgan Ahmadi Nadoushan, Department of Environmental Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran Mailing address: Isfahan (Khorasgan) Branch, Islamic Azad University, Arghavanie St., Jey Sharghi St., Isfahan, Iran

Mozhgan Ahmadi Nadoushan is an Assistant Professor of Environmental sciences and head of waste and wastewater research center at Islamic Azad University, Isfahan branch. She received her doctorate in Environmental sciences from Islamic Azad University, Science and Research Branch. She published about 20 research papers (In English and persian) and more than 40 conference papers.

Ahmad Jalalian, Department of Soil Science, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran Mailing address: Isfahan (Khorasgan) Branch, Islamic Azad University, Arghavanie St., Jey Sharghi St., Isfahan, Iran

Ahmad Jalalian is a Professor of Soil science at the Islamic Azad University, Isfahan branch. He is the head of Desertification, Combating Desertification and Dust storm stabilization research center. He published about 100 research papers.

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