TABLE 1.

Soil properties

Soil	Type of contamination	Concn (mg kg [dry wt]−1) of:			Concn of culturable heterotrophs (no. of cells g [dry wt]−1)	Concn (no. of copies g [dry wt]−1) of:
		16 PAHs	Naphthalene	Phenanthrene		phnAc	nahAc
A	Town gas site PAHs	428	21.6	36.9	9.2 × 106	1.0 × 108 ± 0.3 × 108a	2.0 × 108 ± 0.9 × 108
B	Petrochemical	2.7	0.29	0.86	1.3 × 107	6.2 × 107 ± 1.3 × 107	1.3 × 106 ± 0.9 × 106

^aMean ± standard deviation (n = 3).