Table 3: Physico- chemical analysis of water canal from Iyiechu Stream.

Parameters

Result

Mean

0035 limit

pH

7

7

5 - 9 (Domestic water), 6 -9 (fresh water), 6.5 - 8.5 (marine). FEPA: 6-9

Temperature

26.5

26.5

FEPA: < 40 °C in 15 ml of out fall.

BOD

1.2

1.2

FEPA: 50 mg/l

DO

4.6

4.6

100 ug/l, marine

P < 0.01.