Abstract:
Food is a basic necessity in human life but as global pollution is increasing gradually, contaminants in food are also exceeding their permissible international standards. So, to study the heavy metals content in foodstuff, two specific areas of Lahore, Pakistan, i.e., Manawan and Ravi Road were selected. Two toxic heavy metals such as lead (Pb) and cadmium (Cd), while two essential heavy metals given as copper (Cu) and chromium (Cr) were analyzed in 28 food samples by (AAS) after drying and performing Di/Tri-acidic digestions. The mean concentration of heavy metals in liquid food is in the range of 0.0094 to 0.042 mg/kg for Pb, below detection limit (BDL) to 0. 001 for Cd, 0.21 to 1.756 mg/kg for Cu, and 0.257 to 0.842 mg/kg for chromium and for solid/ semi-solid foods it was BDL to 0.26 mg/kg for Pb, 0.11 to 8 mg/kg for Cd, 0.73 to 21.02 mg/kg for Cu, and 0.05 to 1.71 mg/kg for Cr, respectively. The result of this study was compared with national or international standards of WHO, FAO, Pak NSDWQ, and USEPA. Daily intake (DIM) of Pd, Cd, Cu, and Cr was in the range of 45 to 670 µg/person, 14.5 to 70 µg/person, 1.12 to 3.44 mg/person, and 13.5-60 mg/person. Almost all the metals were within the safe limit of the total food intake of a person per day except for lead intake while in individual foods, some HMs concentrations were at higher levels than the permissible standards. So, the food authorities should keep a check and balance on foodstuff where quality is compromised as this can pose serious implications to its consumer.
Page(s):
0-0
DOI:
DOI not available
Published:
Journal: First International Conference on Revamped Scientific Outlook of 21st Century (Abstract Book), Volume: 0, Issue: 0, Year: 2022
Keywords:
Heavy metals
,
Heavy metals
,
Toxicity
,
Food stuffs
,
HMS