Table 4 Reference dose (RfD) for different HMs.

From: A systematic study on occurrence, risk estimation and health implications of heavy metals in potable water from different sources of Garhwal Himalaya, India

S.N

HMs

RfD (µg kg−1 day−1)

Reference

1

Al

NA

–

2

Cr (total)

3

52

3

Mn

140

53

4

Co

NA

–

5

Ni

20

54

6

Cu

5

55

7

Zn

300

56

8

Cd

0.5

57

9

Pb

3.6

58

  1. NA not available.
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