Stations

Cr

Cu

Fe

Pb

Zn

Mn

As

S1

1.14

2

110

108.9

8.02

108.67

30

S2

2.8

14

50

67.6

40.3

70.03

10

S3

1.05

0.6

0.2

1.02

49.2

130

2.28

S4

0.08

14.5

386.05

370.09

248.7

328.08

1

S5

0.9

0.8

40.07

3.9

50.06

37.1

0.7

S6

5.8

1.6

147.9

67.09

60.08

300

6

Minimum

0.08

0.6

0.2

1.02

8.02

37.1

0.7

Maximum

5.8

14.5

386.05

370.09

248.7

328.08

30

Average

1.96

5.58

122.37

103.1

76.06

162.31

8.33

Median

1.0950

1.8000

80.0000

67.3450

49.6300

119.3350

4.1400

S.D

2.0789

6.7345

139.4763

137.2117

86.4472

122.1086

11.1925

WHO standard

50

2000

300

10

3000

400

10