Soil type

Day 1

Day 2

Day 5

Day 7

Day 14

DS (100%)*

0(0)

0(0)

0(0)

0(0)

0(0)

DS (50%)*

3(100)

3(66.66)

2(50)

2(0)

1(0)

DS(10%)*

6(83.33)

6(50)

6(33.33)

5(20)

5(0)

NCS

10(10)

8(12.5)

8(0)

8(0)

8(0)

CS

9(0)

9(0)

9(0)

9 (0)

8 (0)

*=significantly different at P<0.05 The t-test results comparing means of surviving earthworms exposed to diesel contaminated soil showed that there was significant (P<0.05) difference in all treated media compared to the control media (NCS) but not with the contaminated soil, NCS (P>0.05) from Agaye
Table 2: Mean number of surviving earthworms and (Percentage of coiled ones in Parenthesis) of exposed to diesel contaminated soil.