Table 8.

Calculation of true metal intake.

True metal intake	Calculation	Total intake of metal
As	2 mg x 0.350 + 2 mg x 0.150 + 2 mg x 0.350 + 2 mg x 0.050	1.80 mg/kg, As
Cd	2 mg x nd + 2 mg x 0.013 + 2 mg x 0.020 + 2 mg x nd	0.066 mg/kg, Cd
Cr	2 mg x nd + 2 mg x nd + 2 mg x 6.637 + 2 mg x nd	13.274 mg/kg, Cr
Hg	2 mg x 0.470 + 2 mg x 0.108 + 2 mg x nd + 2 mg x 0.151	1.458 mg/kg, Hg
Ni	2 mg x 0.125 + 2 mg x 0.100 + 2 mg x 0.434 + 2 mg x 0.173	1.664 mg/kg, Ni
Pb	2 mg x nd + 2 mg x nd + 2 mg x nd + 2 mg x 2.470	4.940 mg/kg, Pb

(Assumed painkiller drugs consumed per day was equivalent to two multiply by the amount used for the analysis, we randomly used drugs samples coded 001, 002, 003 and 005 for true intake calculation).