Safety Evaluation of Potential Toxic Metals Exposure from Street Foods Consumed in Mid-West Nigeria

Journal of Environmental and Public Health
O C EkhatorOrish Ebere Orisakwe

Abstract

Objective. Street-vended foods offer numerous advantages to food security; nevertheless, the safety of street food should be considered. This study has investigated the level of potential toxic metal (Pb, Cd, Hg, Sb, Mn, and Al) contamination among street-vended foods in Benin City and Umunede. Methods. Twenty street food samples were purchased from vendors at bus stops. Metals were analyzed with atomic absorption spectrophotometry. The methods developed by the US EPA were employed to evaluate the potential health risk of toxic metals. Results. The concentrations of the toxic metals in mg/kg were in the range of Pb (0.014-1.37), Cd (0.00-0.00017), Hg (0.00-0.00014), Sb (0.00-0.021), Mn (0.00-0.012), and Al (0.00-0.22). All the toxic metals except Pb were below permissible limit set by WHO, EU, and USEPA. The daily intake, hazard quotient, and hazard index of all toxic metals except for Pb in some street foods were below the tolerable daily intake and threshold value of 1, indicating an insignificant health risk. Total cancer risk was within the priority risk level of 1.0E - 04 but higher than the acceptable risk level of 1E - 06. Conclusion. Consumption of some of these street foods is of public health concern.

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Citations

Oct 13, 2018·Journal of Human Nutrition and Dietetics : the Official Journal of the British Dietetic Association·K AbrahaleN Lunet
Nov 28, 2018·International Journal of Environmental Research and Public Health·Lígia Isoni AuadRenata Puppin Zandonadi
May 14, 2020·Journal of Environmental Science and Health. Part C, Toxicology and Carcinogenesis·Cecilia Nwadiuto AmadiOrish Ebere Orisakwe
Feb 8, 2020·Journal of Environmental Health Science & Engineering·Frank Adusei-MensahMartins Ekor
Dec 1, 2021·Environmental Science and Pollution Research International·Ravindra Singh ThakurDevendra Kumar Patel

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