Table 16. The %PTWI of heavy metals in roasted coffee bean by the country of origin

Country of origin	Pb		Cd
	Total weekly intake (mg/kg b.w./week)	%PTWI	Total weekly intake (mg/kg b.w./week)	%PTWI
America	3.69 × 10–6	0.01	3.02 × 10–6	0.05
Brazil	9.72 × 10–6	0.04	2.68 × 10–6	0.04
Colombia	2.41 × 10–5	0.10	4.02 × 10–6	0.06
Costa Rica	1.51 × 10–5	0.06	4.36 × 10–6	0.07
Ethiopia	3.69 × 10–5	0.15	1.34 × 10–6	0.02
Guatemala	2.41 × 10–5	0.10	5.03 × 10–6	0.08
Italia	1.34 × 10–5	0.05	1.68 × 10–6	0.03
Japan	2.72 × 10–5	0.11	2.01 × 10–6	0.03
Kenya	2.55 × 10–5	0.10	1.34 × 10–6	0.02
Panama	-	0.00	1.01 × 10–6	0.02
El Salvador	1.88 × 10–5	0.08	3.02 × 10–6	0.05
More than two countries	2.88 × 10–5	0.12	2.35 × 10–6	0.04
Others	8.38 × 10–6	0.03	2.68 × 10–6	0.04
Total	2.31 × 10–5	0.09	2.68 × 10–6	0.04

PTWI, provisional tolerable weekly.