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Volume 8
Journal of Environmental & Analytical Toxicology
EnviTox Summit 2018
September 17-18, 2018
September 17-18, 2018 Singapore
18
th
Global Summit on
Environmental Toxicology and Pharmacology
J Environ Anal Toxicol 2018, Volume 8
DOI: 10.4172/2161-0525-C2-015
Potential toxic elements contamination and human health risk assessment in surface soils of an
industrial area, south central Iran
Tahereh Moghtaderi
Islamic Azad University, Iran
T
he purpose of this study was to determine the concentrations, contamination level, distribution, health risk and potential
sources of heavy metals in suburban soils from industrial area in south central Iran. A total of 66 top soil samples from
Bandar Abbas County south district were collected and analyzed for Cr, Cd, Pb, Zn, Cu, Ni and As using Inductively Coupled
Plasma Mass Spectrometry (ICP-MS). The geo-accumulation Indexes (Igeo), Pollution Index (PI) and Pollution Load Index
(PLI) were calculated to assess the pollution level in the industrial soils. The Hazard Index (HI) and Carcinogenic Risk (RI)
were used to assess human health risk of heavy metals. Also, multivariate statistical analysis and Geographical Information
System (GIS) were used to source identification and prepare distribution maps of heavy metals, respectively. Results showed
that the contamination levels of heavy metals were in the descending order of Cu>Cd>Pb>Zn>As>Ni>Cr. Moreover, based
on principal component analysis (PCA), Cd, Zn, Cu and Pb originated mainly from anthropogenic sources including power
plants, oil and gas refinery, steel and zinc production factories and municipal waste landfills and suburban soils were highly
polluted with these metals. For non-carcinogenic effects, Hazard Indexes (HIs) of studied metals decreased in the order of
Cr>As>Cd>Pb>Ni>Cu>Zn. Arsenic, chromium and cadmiumwere regarded as the priority pollutants. Carcinogenic risks due
to Cd and As in suburban soils were within tolerable risk to human health; however, children faced more health risk in their
daily life than adults via their unconscious ingestion and dermal contact pathway. These results provide basic information of
heavy metal pollution control and environment management in this industrial area.
tmoghtaderi62@yahoo.com