Table 4 Mean ± SD of the physicochemical characteristics of Nworie Inland river

Upper River (UR)

6.157 + 0.361^a

0.139 ± 0.010^ab

168.3 ± 12.583^b

5.800 ± 0.263^b

0.137 ± 0.012^b

48.03 ± 111.12^a

63.10 ± 12.43^b

10.81 ± 1.255^b

2.333 ± 0.611^ab

1.450 ± 0.180^ab

1.167 ± 0.144^b

0.360 ± 0.151^c

0.500 ± 0.087^a

Middle River (MR)

6.553 ± 0.314^a

0.113 ± 0.013^c

123.3 ± 10.408^c

3.91 ± 0.142^b

0.106 ± 0.015^b

36.82.766^bc

73.8 ± 7.718^ab

17.23 ± 2.767^a

1.333 ± 0.153^a

1.032 ± 0.143^c

1.827 ± 0.150^a

1.040 ± 0.225^a

0.360 ± 0.078^b

Lower River (LR)

5.827 + 0.283^c

0.169 ± 0.036^a

226.7 ± 20.817^a

39.79 ± 4.415^a

0.836 ± 0.173^a

31.74 ± 3.353^c

172.4 ± 7.501^a

18.70 ± 1.566^a

3.333 ± 1.832^c

1.650 ± 0.325^a

1.660 ± 0.121^a

0.627 ± 0.352^ab

0.265 ± 0.077^c

Mean

6.179

0.140

172.8

16.50

0.359

38.86

103.1

15.58

2.333

1.374

1.551

0.675

0.375

%Cv

5.2

16.1

8.8

15.8

28.0

17l7

9.2

12.7

25.8

16.8

9.0

38.0

21.5

Se

0.321

0.023

15.28

2.601

0.101

6.90

9.49

1.973

0.603

0.231

0.139

0.257

0.081

WHO STD 2007

6.5–8.5

1.00

50

4

 > 4

400

75

50

10

200

200

50

5