Table 2: Mean variations of the water quality parameters in Ologe and Badagry Lagoons.

S/N

Parameters

Ologe

Badagry

The t-test (p < 0.05)

FMEnv (2003)

1

Water Temperature (°C)

29.82 ± 0.19ab

30.75 ± 0.23ab

0.103

< 40

2

pH

6.83 ± 0.11a

8.30 ± 0.06ab

0.000

6.0-9.0

3

Conductivity (µS/m)

188.16 ± 2.97bc

190.13 ± 3.52a

0.433

-

4

Salinity (‰)

3.85 ± 0.27

5.20 ± 0.22

0.015

-

5

Dissolved Oxygen (DO) (mg/L)

3.89 ± 0.18abc

5.75 ± 0.13bc

0.002

5

6

Biochemical Oxygen Demand (mg/L)

74.11 ± 0.88bc

37.54 ± 3.46a

0.000

10

7

Rainfall (mm)

231.57 ± 43.77

231.57 ± 43.77

 

 

Alphabets with the letter "a" indicate no significantly different means (p > 0.05). FMEnv. (2003) -Nigerian Water Quality Standard for Inland Surface Water.