Table 2. The values of Mercury, Arsenic, Nickel and Tin .

Estimated Intake (µg/d) **	PTWI * (µg/d/60 kg)	Permissible limit by Codex Standard (µg/l)	Range (µg/l)	Number of samples	Metal
4.50	300	500	7.29 -14.95	32	Hg
8.52	128	140	15.20 - 25.90	32	Arsenic
34.92	ND***	200	45.10 -310.55	32	Nickel
28.23	ND***	300	29.78 -314.64	32	Tin

^*PTWI provisional tolerable weekly intake, ^** Assuming that Per Capita Consumption of milk in HGArak is about 150 liter ^***ND not determined