Soil type

Day 1

Day 2

Day 5

Day 7

Day 14

GS (100%)*

6(83.33)

5(60)

5(40)

4(33.33)

4(0)

GS (50%)*

8(87.5)

7(57.14)

7(42.86)

7(33.33)

7(0)

GS (10%)*

9(33.33)

8(25)

7(14.29)

7(14.29)

7(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 gasoline 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 (CS) from Agaye.
Table 1: Mean number of surviving earthworms/(Percentage of coiled ones in Parenthesis) of exposed to gasoline contaminated soil.