Table 1 Characteristics of petroleum hydrocarbons (PHs) in soils of the Dagang oilfield.

From: Distribution of petroleum degrading genes and factor analysis of petroleum contaminated soil from the Dagang Oilfield, China

Samples

TPH (mg kg −1  dm)

TSH (mg kg −1  dm)

TAH (mg kg −1  dm)

Alkanes (C8 ~ C40)(μg kg −1  dm)

16 PAHs (μg kg −1  dm)

naphthalene (μg kg −1  dm)

phenanthrene(μg kg −1  dm)

pyrene(μg kg −1  dm)

Alkanes (C8 ~ C19) (μg kg −1  dm)

Alkanes (C20 ~ C32) (μg kg −1  dm)

Alkanes (C33 ~ C40) (μg kg −1  dm)

pH

salinity(g kg −1  dm)

Oil-producing zone

S1

(3.7 ± 0.7) × 104

(1.1 ± 0.2) × 104

(5.1 ± 0.8) × 103

(1.9 ± 0.1) × 104

(1.3 ± 0.05) × 103

(1.2 ± 0.2) × 102

7.7 × 101

2.5 × 102

7.7 × 103

9.8 × 103

1.9 × 103

8.55

16.56

 

S2

(3.3 ± 0.7) × 104

(6.5 ± 0.3) × 103

(4.9 ± 0.2) × 103

(1.1 ± 0.1) × 104

(4.0 ± 0.3) × 102

(7.9 ± 1.2) × 101

7.4 × 101

8.2 × 101

4.1 × 103

7.0 × 103

4.0 × 102

8.54

7.97

 

S3

(2.2 ± 0.6) × 104

(3.5 ± 0.4) × 103

(3.4 ± 0.5) × 103

(6.6 ± 0.2) × 103

(4.3 ± 0.2) × 102

(5.9 ± 0.9) × 101

8.9 × 101

6.9 × 101

3.2 × 103

3.2 × 103

1.0 × 102

8.53

7.10

 

S4

(2.0 ± 0.5) × 104

(2.6 ± 0.8) × 103

(2.6 ± 0.4) × 103

(1.2 ± 0.1) × 104

(4.0 ± 0.7) × 102

(1.2 ± 0.0) × 102

8.3 × 101

7.0 × 101

8.1 × 103

3.7 × 103

2.0 × 102

8.39

8.76

 

S5

(2.1 ± 0.2) × 104

(7.8 ± 0.8) × 103

(1.7 ± 0.3) × 103

(1.3 ± 0.1) × 104

(1.7 ± 0.1) × 102

(2.7 ± 0.1) × 101

3.9 × 101

5.1 × 101

6.3 × 103

6.9 × 103

2.2 × 102

8.63

11.78

Residential zone

S6

(1.3 ± 0.3) × 104

(9.7 ± 0.9) × 102

(2.2 ± 0.6) × 103

(2.8 ± 0.2) × 102

(4.6 ± 0.4) × 102

(5.8 ± 0.6) × 101

7.1 × 101

1.0 × 102

1.4 × 102

1.1 × 102

3.4 × 101

8.51

53.83

 

S7

(2.1 ± 0.5) × 104

(5.4 ± 0.8) × 103

(1.8 ± 0.4) × 103

(5.9 ± 0.1) × 103

(2.7 ± 0.3) × 102

(4.7 ± 0.9) × 101

7.4 × 101

3.6 × 101

3.6 × 103

2.3 × 103

6.3 × 101

8.43

26.72

 

S8

(3.4 ± 0.5) × 104

(5.2 ± 0.4) × 103

(1.1 ± 0.5) × 103

(7.2 ± 0.7) × 103

(1.9 ± 0.2) × 102

(3.7 ± 0.2) × 101

4.6 × 101

2.9 × 101

4.4 × 103

2.7 × 103

7.4 × 101

8.56

33.23

 

S9

(1.8 ± 0.2) × 104

(6.0 ± 1.4) × 103

(1.8 ± 0.3) × 103

(2.9 ± 0.3) × 103

(3.7 ± 0.1) × 102

(1.3 ± 0.1) × 102

6.6 × 101

6.3 × 101

2.0 × 103

9.1 × 102

5.0 × 101

8.44

3.32

Oil-refinery and transportation zone

S10

(2.3 ± 0.4) × 104

(9.0 ± 1.3) × 103

(2.2 ± 0.5) × 103

(1.8 ± 0.2) × 104

(3.2 ± 0.3) × 102

(8.3 ± 0.7) × 101

7.6 × 101

6.3 × 101

9.5 × 103

8.6 × 103

1.9 × 102

8.38

4.82

 

S11

(2.2 ± 0.1) × 104

(6.0 ± 0.8) × 103

(5.4 ± 0.2) × 103

(1.5 ± 0.4) × 104

(2.8 ± 0.3) × 103

(1.3 ± 0.1) × 102

2.6 × 102

4.4 × 102

6.0 × 103

8.4 × 103

2.8 × 102

8.41

14.37

 

S12

(2.3 ± 0.2) × 104

(7.6 ± 0.8) × 103

(1.8 ± 0.2) × 103

(1.5 ± 0.04) × 104

(1.8 ± 0.2) × 102

(3.7 ± 0.5) × 101

3.9 × 101

5.3 × 101

7.6 × 103

7.6 × 103

1.3 × 102

8.61

13.48

 

S13

(2.2 ± 0.3) × 104

(8.5 ± 0.8) × 103

(3.4 ± 0.6) × 103

(1.6 ± 0.1) × 104

(7.1 ± 0.5) × 102

(8.8 ± 1.1) × 101

1.1 × 102

1.1 × 102

7.7 × 103

8.0 × 103

2.2 × 102

8.4

1.42

 

S14

(2.0 ± 0.5) × 104

(6.6 ± 0.9) × 103

(1.9 ± 0.9) × 103

(1.3 ± 0.1) × 104

(2.8 ± 0.7) × 102

(4.0 ± 0.9) × 101

5.4 × 101

6.2 × 101

7.1 × 103

6.1 × 103

8.8 × 101

8.62

27.32

  1. Mean ± standard deviation for triplicate experiments.
Back to article page