Rivers

Parameters

Fe

Cu

Zn

Pb

Cd

Mn

Yarmouk^a

25883.22

-

172.61

67.20

8.48

594.50

Gomti^b

6735.77

10.705

42.83

51.04

2.53

220.33

Achankovil^c

11858

224

415

72

6

699

Orogodo^d

24.60

2.50

1.26

4.39

0.49

1.60

Ganga^e

5816.50

12.82

49.02

2.50

3.08

148.50

Hindon^f

233.72

59.33

58.29

41.20

2.29

150.88

Dikrong^g

1.76

190.10

26.40

39.10

-

548.80

Euphrates^h

661.70

14.14

67.66

0.59

11.22

37.70

Shale standardⁱ

47200

45

95

20

0.3

850

Present study

35886.71

154.49

50.13

16.14

1.30

814.20