Abstract
Soil is a major reservoir for heavy metals and other contamination as it possesses an ability to absorb these metals on the surface of clay minerals and bind various chemicals. These heavy metals and chemicals can exist in various forms in soil and different forces keep them bound to clay minerals and soil particles. The aim of the present work is to estimate the concentration levels of some heavy metals Zn, Cu, Pb and Cd in two sites of soil Kirkuk city. In this study the first sample was taken from inside the city of four areas around (Northern Oil Company) in Kirkuk city, while the second sample was taken from outside the city of four areas and both were randomly chosen. Sequential extraction procedure was applied to fractionate heavy metals which may help in the prediction of their mobility, bioavailability and fate of the metal contaminant. Results of sequential extraction showed that Cd and Pb were mainly bound to residual fraction, Cu was mainly bound to organic fraction and Zn was bound to Fe-Mn oxide fraction in the two sites of the study. The overall mean values obtained for the metals in the fractions gave the range: inside the city Cu (28.12 ppm), Zn (77.9 ppm), Pb (21.73 ppm) and Cd(4.21 ppm), and outside the city Cu (24.65 ppm), Zn (59.28 ppm), Pb (13.25 ppm) and Cd (2.38 ppm). The extracts were analyzed for heavy metal, using flameless-atomic absorption spectrophotometers (Flameless-AAS).
Highlights
In recent years, pollution by heavy metals from a metal recycling industry can become a very important sourceHow to cite this paper: Hussain, K.S. (2016) Determination of Heavy Metals in Two Regions from Kirkuk City Using Sequential Extraction
The aim of this paper is to study the effects of oil production and industrial activity of the (North Oil Company) on the soil pollution by heavy metals in the Kirkuk area, using sequential extraction method
The total of the metals such as Copper, Zinc, Lead and Cadmium for the soil samples collected from two sites the first were collected from four areas within the city of Kirkuk and the second site were from four outside the city is presented in the Tables 1-4 are from inside the city, which the Tables 5-8 are from outside of the city
Summary
Pollution by heavy metals from a metal recycling industry can become a very important sourceHow to cite this paper: Hussain, K.S. (2016) Determination of Heavy Metals in Two Regions from Kirkuk City Using Sequential Extraction. Pollution by heavy metals from a metal recycling industry can become a very important source. How to cite this paper: Hussain, K.S. (2016) Determination of Heavy Metals in Two Regions from Kirkuk City Using Sequential Extraction. Journal of Geoscience and Environment Protection, 4, 38-45. Air and water within the vicinity of the industry. Soil receives pollutants from a variety of sources, including automobile exhaust gases, and emission of factory chimneys, household electric power generators and dust storm [1]. Heavy metal contamination, which is common in soil throughout the world, poses a potential risk to human and animal health owing to migration through soil profiles into groundwater. Various remediation techniques have been applied to reduce the mobility and bioavailability of heavy metals in soil
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