Table 1.

Basic physical and chemical properties of the collected samples.

Sample			TPHa		Moisture content	Organic matter	Total nitrogen	Available nitrogen
No.	Origin	Plasmids	(mg kg−1)	pHb	(%)	(g kg−1)	(g kg−1)	(mg kg−1)
S1	Soil	pSFS12	713.3	6.7	20.7	39.0	1.1	202.5
S2	Soil	pSFS26	700.0	6.4	19.0	44.7	2.3	543.2
S5	Soil	pSFS52	1053.3	6.8	19.2	60.1	1.5	94.7
W5	Wastewater	pSFW53	18.32	6.3	–	13.8	9.2	30.6

^aTPH, total petroleum hydrocarbons.

^bpH (soil: water = 1:5).