TABLE 1.

Physical and chemical characteristics of soils used as inocula in phenanthrene enrichment experiments

Soil	% Organic C	% Sand	% Silt	% Clay	% of phenanthrene degradeda	Concn of PAHs (mg kg−1)								Total petroleum hydrocarbon (mg kg−1)
						Naphthalene	Phenanthrene	Anthracene	Pyrene	Fluorene	Benz[a]- anthracene	Chrysene	Benzo[a]- pyrene
Dover, Ohio	3.7	71	19	4	44.1 ± 2.4	NDb	60	ND	110	110	75	80	120	4,200
Libby, Mont.	3.9	46	35	11	45.9 ± 9.1	ND	85	150	210	50	65	75	22	14,000

^aExtent of phenanthrene degradation in a batch soil environment after 30 days of incubation. 

^bND, not detected.