Effect of Wastewater Irrigation on Trace Metal Accumulation in Spinach (Spinacia oleracea L.) and Human Health Risk

  • Ilker Ugulu Dokuz Eylul University
  • Zafar Iqbal Khan
  • Sidrah Rehman
  • Kafeel Ahmad
  • Mudasra Munir
  • Humayun Bashir

Abstract

The present research determines the effect of wastewater for irrigation on heavy metal
accumulation in vegetables in the example of spinach (Spinacia oleracea L.) and to evaluate
human health risk from consumption. Trace metal values of Cd, Cu, Cr, Fe, Zn, Ni and Mn, were
determined in the water, soil and plant samples by Atomic Absorption Spectrophotometer. Trace
metal concentrations in spinach samples ranged from 0.29 to 0.37, 0.14 to 1.25, 0.07 to 0.67, 1.12
to 2.48, 0.33 to 0.38, 1.92 to 2.90 and 0.51 to 0.63 mg/kg for Cd, Cr, Cu, Fe, Ni, Zn and Mn,
respectively. These values of trace metals were lower than the permissible limits except for Cd.
All health risk index (HRI) values except for Cd were less than 1. However, the HRI values
related to spinach samples irrigated with canal water and sugar mill water were generally higher
than the values of the samples irrigated with groundwater. The HRI value of Cd was higher than 1
and consumers of such vegetables in which HRI of metal was greater than 1 will be at risk.

Published
Jun 19, 2020
How to Cite
UGULU, Ilker et al. Effect of Wastewater Irrigation on Trace Metal Accumulation in Spinach (Spinacia oleracea L.) and Human Health Risk. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 21, n. 1, p. 92-101, june 2020. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/623>. Date accessed: 13 july 2020. doi: http://dx.doi.org/10.21743/pjaec/2020.06.11.