S/N

Parameter

Unit

Previous Studies

Current Study

Range

Mean ± S.E.

Range

Mean ± S.E.

References

1

Depth

m

1.37 - 5.70

3.54 ± 2.17

0.16 - 4.07

2.25 ± 0.18

[6]

2

Transparency

m

0.5 - 0.9

0.65 ± 0.04

0.16 - 1.12

0.69 ± 0.05

[44]

3

Water-Temperature

˚C

26.5 - 30.0

28.8 ± 0.5

24.0 - 33.5

28.3 ± 0.2

[44]

4

Apparent-Colour

Pt-Co

-

-

181.1 - 1826.3

529.4 ± 42.2

-

5

True-Colour

Pt-Co

-

-

37.6 - 643.5

165.2 ± 11.6

-

6

Turbidity

NTU

-

-

7.6 - 183.3

40.6 ± 4.0

-

7

Total Suspended Solids (TSS)

mgL⁻¹

-

-

40 - 550

151 ± 12.8

-

8

Total Solids (TS)

mgL⁻¹

-

-

90 - 590

207 ± 13.1

-

9

pH

0 - 14

6.40 - 7.70

7.02 ± 0.24

6.00 - 6.85

6.38 ± 0.09

[44]

10

Conductivity

µScm⁻¹

93.1 - 112.4

103.9 ± 2.8

58 - 130

82 ± 2.2

[44]

11

Total Dissolved Solids (TDS)

mgL⁻¹

-

-

40 - 90

54 ± 1.5

-

12

Total-Alkalinity

mgCaCO₃L⁻¹

0.166 - 0.272

0.217 ± 0.009

08 - 28

22.0 ± 0.5

[44]

13

Total-Hardness

mgCaCO₃L⁻¹

-

-

0.93 0 - 23.31

11.51 ± 0.52

-

15

Total-Acidity

mgCaCO₃L⁻¹

-

-

04 - 30

13 ± 0.7

-

16

Calcium ion (Ca²⁺)

mgL⁻¹

5.90 - 6.90

6.58 ± 0.15

0.19 - 7.57

3.94 ± 0.17

[44]

17

Magnesium ion (Mg²⁺)

mgL⁻¹

3.20 - 4.10

3.58 ± 0.17

0.11 - 1.52

0.40 ± 0.04

[44]

18

Sodium ion (Na⁺)

mgL⁻¹

2.40 - 3.80

2.97 ± 0.24

5.09 - 9.34

6.24 ± 0.09

[44]

19

Potassium ion (K⁺)

mgL⁻¹

3.20 - 4.70

3.83 ± 0.27

1.42 - 5.17

2.46 ± 0.11

[44]

20

Bicarbonate ion ( ${\text{HCO}}_3^{-1}$ )

mgL⁻¹

-

-

9.6 - 33.6

26.4 ± 0.6

-

21

Chloride ion (Cl⁻¹)

mgL⁻¹

4.30 - 6.70

5.47 ± 0.38

1.14 - 6.94

4.31 ± 0.13

[44]

22

Sulphate ion ( ${\text{SO}}_4^{2-}$ )

mgL⁻¹

-

-

1.91 - 9.92

5.14 ± 0.41

-

23

Dissolved Oxygen (DO)

mgL⁻¹

-

-

0.0 - 8.0

4.0 ± 0.2

-

24

Dissolved Oxygen Saturation

%

-

-

0.0 - 105.5

51.0 ± 2.8

-

25

Biochemical Oxygen Demand (BOD₅)

mgL⁻¹

-

-

0.4 - 16.0

4.0 ± 0.3

-

26

Organic-Matter (OM)

mgL⁻¹

1.03 - 4.24

-

2.03 - 17.23

7.75 ± 0.40

*Alamina, 1969

27

Nitrate ion ( ${\text{NO}}_3^{-}$ )

mgL⁻¹

-

-

0.55 -4.70

1.17 ± 0.08

-

28

Phosphate ( ${\text{PO}}_4^{3-}$ )

mgL⁻¹

0.012 - 0.140

0.075 ± 0.025

0.10 - 0.56

0.22 ± 0.01

[44]