80. Health risk assessment of metals in wheat grown in municipal solid waste amended soil

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Kafeel Ahmad, Zafar Iqbal Khan, Radiqa Arshad Naunain Mehmood Kinza Wajid Shahzadi Mahpara Muhammad Nadeem Humayun Bashir, Mudasra Munir, Ifra Saleem Malik, Asma Ashfaq, Maria Ghazzal , Mubeen Akhtar, Pervaiz Akhter

Abstract

The current research was performed during (November 2016-April 2017) to determine the contents of heavy metal in wheat (Triticum aestivum) variety (Ujala) that was grown on soil irrigated with municipal solid waste and to estimate the health risk in human-caused by the consumption of contaminated wheat crop. The result shows that mean concentration of (mg kg-1) of heavy metals Fe, Zn, Cd and Co in the soil of all four treatments were ranged from 42.11 to 22.32, 14.21 to 31.78, 2.67 to 8.18 and 2.13 to 2.94 mg/kg respectively. According to current findings, the concentration of Fe metal was higher among all treatments while Co was lower among all treatments. In the root of wheat, the heavy metal concentrations (mg kg-1) varied between 2.12 to 2.87 for Co, 2.29 to 3.39 for Zn, 2.23 to 3.48 for Cd and 20.71 to 31.01 for Fe respectively. In shoot of wheat the specific order of heavy metals was found in T-1, i.e. Fe>Co>Cd>Zn while in T-2, T-3 and T-4 it was: Fe>Zn>Cd>Co. According to our findings, Fe concentrations were higher, while Zn and Co showed lower concentrations among all treatment. In grains, heavy metals mean concentrations (mg kg-1) varied for Co from 1.82 to 2.29, for Zn 1.57 to 1.97, for Cd 1.52 to 2.81 and 2.06 to 3.42 for Fe respectively. In our current study, the mean concentration of Fe was higher while Cd, Co and Zn were lower in all treatments. Health risk index of each metal among all treatments trends was similar as Cd>Co>Zn>Fe. Cadmium showed highest health risk index among all treatments.


Keywords: Heavy metals; Municipal solid waste; Triticum aestivum, Health risk


http://dx.doi.org/10.19045/bspab.2020.90090

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