Total petroleum hydrocarbon

Initial concentrations

(day 0)

Final concentrations (day 30) with Earth Worm

Final concentrations (day 30) without Earth Worm

3 ml

3405 mg/kg

1121.27 mg/kg

(67.07%)

2283.73 mg/kg

(32.93%)

2 ml

2825 mg/kg

1057.40 mg/kg

(62.57%)

1767.6 mg/kg

(37.43%)

1 ml

1412.5 mg/kg

627.43 mg/kg

(55.58%)

785.35 mg/kg

(44.42%)