Biodegradation of Weathered Petroleum Hydrocarbons Using Organic Waste Amendments

Table 4

Soil benzene concentrations as a function of amendment, weeks 1 and 15.

Treatment	Week 1 (mg/kg)	Week 15 (mg/kg)
Activated carbon	455.42 ± 95.16	117.41 ± 52.58
Papermill sludge	448.34 ± 23.11	265.21 ± 13.74
Plant compost	375.41 ± 38.33	168.66 ± 56.54
Molasses	413.57 ± 136.39	96.21 ± 38.83
Untreated soil	432.82 ± 140.54	339.28 ± 57.68

Significant at  < 0.05.