S. No

Age (year)

Fe, T-II mg/L (±SD)

Age (year)

Fe, T-III mg/L (±SD)

Age (year)

Fe, T-IV mg/L (±SD)

Required

(mg/L)

1

29

0.57 ± 0.011

25

0.49 ± 0.021

28

0.41 ± 0.012

2

36

0.51 ± 0.019

29

0.47 ± 0.015

37

0.39 ± 0.024

3

34

0.52 ± 0.012

31

0.47 ± 0.026

41

0.42 ± 0.011

4

36

0.47 ± 0.010

34

0.42 ± 0.006

44

0.38 ± 0.013

5

36

0.49 ± 0,011

35

0.51 ± 0.021

45

0.30 ± 0.012

6

38

0.59 ± 0.011

38

0.46 ± 0.021

48

0.32 ± 0.010

7

39

0.56 ± 0.018

40

0.49 ± 0.018

51

0.39 ± 0.019

8

39

0.48 ± 0.014

41

0.41 ± 0.010

53

0.40 ± 0.017

0.6 - 1.7

9

41

0.55 ± 0.026

44

0.45 ± 0.031

54

0.32 ± 0.023

10

41

0.59 ± 0.016

45

0.48 ± 0.022

60

0.36 ± 0.018

11

44

0.51 ± 0.011

48

0.48 ± 0.021

64

0.37 ± 0.019

12

47

0.57 ± 0.022

53

0.51 ± 0.019

65

0.33 ± 0.014

13

52

0.52 ± 0.012

56

0.42 ± 0.021

69

0.39 ± 0.012

14

56

0.58 ± 0.023

56

0.45 ± 0.023

70

0.31 ± 0.015

15

61

0.49 ± 0.010

65

0.41 ± 0.013

73

0.34 ± 0.023