Chemical, Microbial Quality, and Risk Assessment due to Toxic Metal Contamination of Egusi (Citrullus colocynthis L.) Powder Sold in Selected Ghanaian Markets

Table 3

The estimated daily intake (EDI) and Hazard Quotient (H.Q) of toxic metals in egusi from the various locations.

Trace element	Location	USEPA RfD	Concentration (ppm)	EDI (mg/kg Bw/day)	HQ
Pb	Madina		0.53		20.20
	Agbogbloshie		0.76		28.85
	Nima		0.41		15.70
	Dome		0.45		17.14
Cd	Madina		0.02		2.67
	Agbogbloshie		0.01		1.33
	Nima		0.01		1.33
	Dome		0.02		2.67
Cu	Madina		0.47		1.58
	Agbogbloshie		0.30		1.00
	Nima		0.61		2.03
	Dome		0.52	0.069	1.73

; the average weight of . RfD: Reference Dose (USEPA,2012; Chauhan and Chauhan, 2014).