Volume 11, Issue 1 (6-2018)                   ijhe 2018, 11(1): 63-74 | Back to browse issues page

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Ghanavati N. Human health risk assessment of heavy metals in street dust in Abadan. ijhe. 2018; 11 (1) :63-74
URL: http://ijhe.tums.ac.ir/article-1-5972-en.html
Department of Soil Science, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran , ghanavati.navid2014@gmail.com
Abstract:   (1500 Views)
Background and Objective: The aim of the present study was to investigate risk of heavy metals on human health including (Pb, Zn, Cu, Cr, Cd, Ni, V, As and Co) in street dusts in Abadan.
Materials and Methods: 30 dust samples were collected from sidewalks of main streets of Abadan and analyzed by inductively coupled spectroscopy (ICP-OES) method.
Results: The mean concentration of the heavy metals was as follows: Pb (59.13), Zn (287.50), Cu (112.97), Cr (50.30), Cd (0.52), Ni (56.77), V (35.83), As (10.7) and Co (7.33) (mg/kg). The concentration of all of the heavy metals, except V, in the dust samples was several times higher than the field concentration (concentration in the earth's crust). The average value of the potential ecological risk of the heavy metals V, Cr, Zn, Ni, As, Cu and Pb was low and had a low potential ecological risk. Cd had a moderate potential ecological risk. Also, based on the average value of Risk Index, the samples were at medium risk. Cumulative non-carcinogenic hazard of all the heavy metals in the street dust was higher for children than adults. This indicates that children are more at risk for heavy metals than the adults. In both age groups, Cr had the highest risk of carcinogenicity and Pb had the lowest risk.
Conclusion: The results indicated that the main source of the heavy metals in the study area is anthropogenic sources such as traffic, industrial facilities and burning of fossil fuels.
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Type of Study: Research | Subject: General
Received: 2017/10/22 | Accepted: 2018/04/17 | Published: 2018/07/17

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