Table 3 Water quality parameters during the wet season.

From: Seasonal variations in water quality and hydrological dynamics in a tropical reservoir driven by rainfall, runoff, and anthropogenic activities

Parameters

Unit

Site

Average

Standard deviation

Physical parameters

 

WQ1

WQ2

WQ3

WQ4

WQ5

WQ6

WQ7

WQ8

WQ9

WQ10

WQ11

WQ12

WQ13

WQ18

  

Temperature

OC

21.20

22.14

22.46

21.69

22.30

22.74

23.41

24.10

24.37

21.39

21.47

22.24

23.53

22.56

22.54

0.99

Turbidity

NTU

340.00

260.31

439.43

258.29

385.43

61.67

290.11

352.17

11.47

9.20

7.93

11.00

9.81

387.43

201.73

171.99

TSS

mg/L

355.07

268.81

394.96

1180.21

631.99

57.31

295.11

322.07

630.27

11.50

10.61

14.50

12.80

430.67

329.71

328.42

Chemical parameters

PH

 

7.27

6.94

6.97

6.90

7.07

7.24

7.29

7.16

7.01

7.13

7.39

7.39

7.31

6.87

7.14

0.18

DO

mg/L

8.71

8.91

9.11

9.30

9.16

8.71

9.37

8.71

9.49

8.69

9.07

8.96

8.93

8.40

8.97

0.31

BOD

mg/L

2.03

1.72

1.29

1.34

1.56

2.77

3.11

1.47

2.21

2.71

1.80

1.40

1.27

1.10

1.84

0.64

COD

mg/L

15.00

21.79

17.71

15.43

13.43

10.14

13.71

10.71

10.93

9.79

15.29

12.29

11.86

16.43

13.89

3.35

NH3-N

mg/L

0.14

0.04

0.02

0.03

0.03

0.43

0.12

0.19

0.17

0.58

0.04

0.11

0.26

0.03

0.16

0.17

O&G

mg/L

230.51

201.17

386.79

315.23

615.10

629.86

830.41

402.14

244.41

287.27

501.86

401.73

401.46

529.41

426.95

178.42

Biological parameters

E. coli

CFU/100 ml

1409.14

898.00

955.43

740.71

685.00

1816.14

1507.71

1399.71

1320.29

1424.62

806.43

1816.14

1619.86

1296.14

1263.95

383.59

Hydrology

Flow rate

m3/s

3.93

6.03

13.09

2.44

3.44

0.41

15.26

16.48

0.60

3.85

3.40

4.78

4.73

4.26

5.91

5.17

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