Climate Change and Climate Disaster

Investigating the contamination of Tehran dust falling with zinc metal using the kriging model

Document Type : Original Article

Authors

Fatemeh Arsalani 1
Mohammad Khoddam 2

1 Climatology,, Geography,, Kharazmi,, Tehran,, Iran

2 International Political Economy, University of Tehran, Iran

Abstract
Investigating heavy metals in falling dust has important information about air pollution and its possible risks for humans. Meanwhile, the investigation of the zinc metal is very important because of its effect on the metabolic actions of the body and the structure of brain enzymes. The current research aims to determine the concentration of zinc (Zn) in the dust of Tehran city, its spatial analysis, and the calculation of the Enrichment Factor (EF) to investigate the intensity of the influence of anthropogenic factors. For this purpose, falling dust was collected in 28 stations in Tehran using Marble Dust Collector (MDCO) in the spring of 2017. XRF analysis was used to identify and determine the concentration of heavy metals. Then, the kriging interpolation model was used to determine the spatial distribution of the heavy zinc metal in the falling dust. Also, the Enrichment Factor (EF) was used to determine its pollution level. The analysis of the results showed that the prevailing wind pattern and the topographical shape of Tehran are the reasons for more dust pollution with zinc metal in the eastern areas of Tehran compared to its western areas. The results of the Enrichment Factor (EF) showed the role of human factors in this problem.

Keywords

dust fall
zinc (Zn)
Enrichment Factor (EF)
kriging model
spatial analysis

Subjects

Home

Guide for Authors

Submit Manuscript

Reviewers

Contact Us