Title:Accrual of Some Toxic Metals and Metalloids in Two Commonly Used Vegetables Irrigated with Fly Ash Wastewater Around Badarpur Thermal Power Plant in Delhi, India
Volume: 4
Issue: 2
Author(s): Sami Ullah Qadir*, Vaseem Raja and Weqar A. Siddiqui
Affiliation:
- Department of Applied Sciences and Humanities, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi, 110025,India
Keywords:
Heavy metals, vegetables, wastewater, irrigation, accumulation, bioconcentration.
Abstract: Background: Accumulation of different metals and metalloids was assessed in two commonly
used vegetable radish (Raphanus sativus L.) and Carrot (Daucus carota L.) irrigated with Fly ash
wastewater in the peri-urban area of Badarpur Delhi, India.
Method: In general, the metal and metalloid concentrations in radish and Carrot were higher at site-II
irrigated with fly ash waste water than those found at Site-I irrigated with canal water. In the case of
radish at both sites, the levels of metals (Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Mo, Cd, and Pb) were below
the acceptable level except those of Mn, Ni, Mo, Cd, and Pb. At both sites, the transfer factor oscillated
from 0.047-228.3 mg kg-1 with Cr having the highest transfer factor.
Result: The metal pollution index in soil was found in the following order: As > Fe > Ni > Zn > Cd >
Mo > Se > Co > Pb > Mn > Cr > Cu, respectively. While in the case of Carrot at both sites, the concentrations
of metals and metalloids in vegetable samples irrigated with canal and fly ash waste water were
observed below the allowable level except Mn, Ni, Zn, Mo, and Pb. At both sites, the transfer factor
vacillated from 0.038-245.4 mg kg-1 with Cr having the highest transfer factor.
Conclusion: The metal pollution index in soil was reported in the following order: Cd > Ni > Co > Se >
Mn > Zn > Mo > Pb > Fe > Cr > As > Cu, respectively.
