Appraisal of Metal Uptake in Wheat Treated with Different Doses of Municipal Solid Waste

Abstract

The present investigation aimed to assess the metal contents (Fe, Zn, Cd, Co) in wheat (Triticum aestivum) crop by selecting variety (Fareed-06) which was grown in the municipal solid waste amended soil. Metal quantification in segregated plant parts of wheat was done with the help of atomic absorption spectrophotometer. Result depicted the range of metals in plant samples to be 4.03 to 7.82 for Zn, 2.38 to 3.06 for Co, 1.7 to 2.91 for Cd and 66.62 to 81.66 mg/kg for Fe. In wheat grains, the heavy metal concentrations ranged from: 0.79 to 2.03 for Zn, 1.21 to 1.71 for Co, 0.87 to 1.04 for Cd and 10.41 to 21.91 mg/kg for Fe. The concentration of Cd in grains exceeded the limit set by FAO/WHO. The transfer factor and bioconcentration factor was less than 1 for all metals. The pollution load index and enrichment factor for Cd was highest among all metals. Health risk index for Cd in all treatments was ]1 indicating Cd contamination in wheat grains and various health hazards to human. So, the municipal solid waste should be treated properly before its application on agricultural field to reduce the health hazards in human.