PJB-2018-706
DETERMINATION OF TRACE METAL ACCUMULATION IN RICE VARIETY KINAT IRRIGATED WITH CANAL WATER: AN ASSESSMENT, REGARDING METAL TOXICITY
ZAFAR IQBAL KHAN
Abstract
Metal accumulation in edible part of plants is major international concern nowadays. The recent research work was carried out in Jhang, Punjab, Pakistan to examine and measured the level of heavy metals in various part of Oryza sativa variety Kinat plant (such as roots, shoots and grains) associated to soil around root area. The samples were taken from five different sites of investigated area. The mean level of trace metals (mg kg-1) in grains varied from Cd (2.49-5.52), Zn (5.8-10.78), Cu (4.82-7.85), Co (1.48-6.52), Fe (8.68-14.73), Mn (6.87-13.93), and Ni (2.3-8.34) correspondingly. Excluding Cd, the absorption of all metals under inspection were within safe limits recommended by FAO/WHO. Pollution load index for Cd was highest at all sites. Enrichment coefficient of Co, Cd and Cu were greater. Bioaccumulation factor at all studied sites was present in that order: Cu˃Zn˃Fe˃Mn˃Co˃Ni˃Cd. Translocation factor was present at five different sites as Mn˃Fe˃Cu˃ Zn˃Co˃Cd˃Ni. The values of health risk index for all inspected metals were less than 1 and was within safe limits. The higher pollution of Cd suggested maintenance of rice crop is recommended in light of these outcomes to decrease the health risks in humans.
To Cite this article:
Download
