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COMPARATIVE ASSESSMENT OF THE EFFECT OF WASTE DUMP SITES ON RIVER NWORIE WATER QUALITY, NIGERIA

Table 1 - Correlation between the mean value of the present study and the study record from 1987

Chemical parameters

Present lab result       

1987 lab result

Ph

5,6

6

Conductivity

82

57

Dissolved oxygen

6,06

2,48

Total dissolved solids

53,3

65

Nitrate

65,93

0,9

Silica

1,01

6

Sulphate

10

9,5

Phosphate

21,36

0,695

Free CO2   

5,57

6,5

Chlorine

0,2

6,1

Iron

0,46

0,515

p-value = 0,189, p-crit = 0,048

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