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Table 5 Calculated Estimated Daily Intake, Hazard Quotient, Target Hazard Quotients and Cancer Risks of the Heavy metals in clay samples

From: Potential health risk assessment of toxic metals contamination in clay eaten as pica (geophagia) among pregnant women of Ho in the Volta Region of Ghana

Heavy MetalSampleEDI
(mg/kg Bw/day)
HQTHQCancer
Risk
ArsenicClay1.886.26 × 10−42.622.82
CopperClay2.7670.0690.067N/A
LeadClay0.6111.75 × 10− 31.690.052
ManganeseClay5.4438.860.377N/A
NickelClay2.13106.510.3419.38
  1. N/A Not available
  2. Total Target Harzard Quotient (Clay) = 2.62 + 0.067 + 1.69 + 0.377 + 10.34=15