Parameters

Bo_001

Bo_002

Bo_003

Kenema_ 001

Kenema_ 002

Kenema_ 003

Kenema_ 004

Moyamba_ 001

Moyamba_ 002

Kono_001

Standard value (Sn)

pH

5.6

4.5

5.56

8.3

5.58

4.5

3.99

4.6

4.5

3.99

8.5

EC (us/cm)

185

167

252

508

149

167

30.6

175

245

30.6

3000

TDS (ppm)

16

10

14

115

10

10

21

10

42

21

1000

BOD (mg O₂/L)

1.78

0.952

1.68

3.344

2.964

0.952

1.44

1.056

1.33

1.44

300

Turbidity (NTU)

14.2

2.6

13.79

8.66

15.67

2.6

4.32

1.93

2.7

4.32

5

COD (mgO₂/L)

13.6

10.3

7.8

8.1

7.4

10.3

19.4

17.9

11.6

19.4

10

Fe²⁺ (mg/L)

1.87

0.19

0.37

2.18

0.18

0.19

0.08

0.08

0.87

0.08

1

Mg²⁺ (mg/L)

8.8

5.4

8.1

18.7

8.3

5.4

8.4

10

13.7

8.4

100

Ca²⁺ (ppm)

7.76538

7.24656

7.85892

12.97452

10.08912

7.24656

7.64976

7.87908

7.24656

7.64976

300

NH₃ (mg/L)

0.8

1

1.2

0.9

2.5

1

1.5

1.3

0.9

1.5

1

${\text{NO}}_{\text{3}}^{-}$ (mg/L)

11.5

13.5

16.6

17.1

17.5

13.5

11.4

15.4

11.9

11.4

50

Alkalinity (mg/L)

6.7

4.9

16.3

20.1

5.1

4.9

4.4

3.4

7.1

4.4

600