2 Open in new tab PAH loss (percentage)...

PAHs	ROG soil	PER soil
2–3 Ring PAHs	0 ± 3^b	35 ± 3	S^c	8 ± 2	12 ± 3	NS
4 Ring PAHs	0 ± 2	22 ± 4	S	14 ± 4	19 ± 2	NS
5–6 Ring PAHs	2 ± 3	28 ± 4	S	12 ± 3	27 ± 4	S
Total PAHs	1	26	S	13	21	S

PAHs	ROG soil	PER soil
2–3 Ring PAHs	0 ± 3^b	35 ± 3	S^c	8 ± 2	12 ± 3	NS
4 Ring PAHs	0 ± 2	22 ± 4	S	14 ± 4	19 ± 2	NS
5–6 Ring PAHs	2 ± 3	28 ± 4	S	12 ± 3	27 ± 4	S
Total PAHs	1	26	S	13	21	S

PAH loss (percentage) after 4 weeks of incubation in non-sterile soils^a

PAHs	ROG soil			PER soil
	Biotic control	Inoculated treatment	Statistical test	Biotic control	Inoculated treatment	Statistical test
2–3 Ring PAHs	0 ± 3^b	35 ± 3	S^c	8 ± 2	12 ± 3	NS
4 Ring PAHs	0 ± 2	22 ± 4	S	14 ± 4	19 ± 2	NS
5–6 Ring PAHs	2 ± 3	28 ± 4	S	12 ± 3	27 ± 4	S
Total PAHs	1	26	S	13	21	S

PAHs	ROG soil			PER soil
	Biotic control	Inoculated treatment	Statistical test	Biotic control	Inoculated treatment	Statistical test
2–3 Ring PAHs	0 ± 3^b	35 ± 3	S^c	8 ± 2	12 ± 3	NS
4 Ring PAHs	0 ± 2	22 ± 4	S	14 ± 4	19 ± 2	NS
5–6 Ring PAHs	2 ± 3	28 ± 4	S	12 ± 3	27 ± 4	S
Total PAHs	1	26	S	13	21	S

Calculated according to formula detailed in Section 2.

Mean ± SE (n = 3).

Statistical analysis was performed by a two sample t-test comparing inoculated treatment with biotic control (P = 0.01). S, significantly different; NS, not significantly different.

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