Table 3 Soil PCBs and their depletion. PCBs detected in S3, their concentration and average depletions (in percentages ± standard deviation) after 120 days of treatment. Each value is the average of duplicate analyses performed on soil samples collected from each of duplicate reactors

1.28

20.5 ± 3.6

22.9 ± 1.1

2.5 ± 0.9

6.8 ± 2.4

2,2',3,4',5',6/2,3',4,4',5

78.99

5.8 ± 9.5

18.7 ± 7.6

4.8 ± 4.3

8.4 ± 6.0

0.55

13.5 ± 0.7

16.9 ± 2.1

6.8 ± 0.3

7.2 ± 0.3

2,2',3,3',5,6

4.70

6.6 ± 4.7

11.5 ± 1.5

1.5 ± 2.0

3.9 ± 2.6

8.76

16.1 ± 14.2

19.6 ± 7.8

8.7 ± 4.3

11.2 ± 7.2

2,2',3,3',4,6/2',3,3',4,5

3.34

5.3 ± 3.3

12.2 ± 5.9

1.3 ± 1.3

4.2 ± 2.0

0.55

11.2 ± 0.8

16.9 ± 3.5

7.3 ± 0.1

13.7 ± 0.3

2,2',3,4',5,5'

10.90

6.3 ± 1.8

12.3 ± 4.7

1.0 ± 0.3

5.3 ± 4.6

2.99

14.8 ± 4.8

18.6 ± 2.6

8.2 ± 1.0

13.2 ± 2.4

2,2',3,3',4,6'/2,2',4,4',5,5'/2,3,3',4,4'

174.11

5.8 ± 2.1

11.8 ± 7.7

0.6 ± 0.7

3.6 ± 3.5

1.37

5.5 ± 2.7

23.9 ± 4.2

3.7 ± 0.4

15.9 ± 1.5

2,2',3,4,5,5'/2,2',3,3',5,6,6'

30.00

4.4 ± 3.8

13.8 ± 6.3

0.7 ± 0.2

7.2 ± 6.1

11.97

16.3 ± 1.6

25.7 ± 7.9

8.7 ± 5.6

12.8 ± 11.5

2,2',3,3',4,6,6'/2,2',3,4,4',5

7.63

5.2 ± 2.4

12.4 ± 2.9

0.7 ± 1.7

5.1 ± 2.6

2.23

16.7 ± 3.9

33.5 ± 11.3

7.4 ± 0.5

8.4 ± 1.7

2,2',3,4,4',5'/2,3,3',4,5,6/2,3,3',4,4',6

104.14

5.7 ± 3.8

11.5 ± 4.4

0.3 ± 1.7

2.9 ± 1.9

5.09

6.2 ± 3.3

21.5 ± 7.6

3.8 ± 2.2

12.3 ± 5.1

2,2',3,3',4,5/2,2',3,3',5,5',6

16.56

4.9 ± 1.0

10.6 ± 6.2

0.2 ± 0.2

5.3 ± 1.2

1.13

10.6 ± 1.4

24.3 ± 5.0

6.2 ± 0.2

10.4 ± 1.2

2,2',3,3',4,5',6

1.20

7.2 ± 1.1

9.9 ± 2.3

0.2 ± 0.2

4.8 ± 0.8

4.70

9.5 ± 6.0

21.7 ± 3.1

6.1 ± 1.6

11.8 ± 3.9

2,2',3,4',5,5',6

31.27

0.7 ± 0.1

6.3 ± 2.4

0.7 ± 0.1

7.3 ± 4.2

3.63

13.4 ± 4.5

21.3 ± 2.3

5.9 ± 1.2

8.9 ± 2.8

2,2',3,4,4',5',6

12.67

3.7 ± 1.5

4.7 ± 1.3

2.6 ± 2.0

3.4 ± 1.4

1.96

8.7 ± 2.3

21.0 ± 11.8

5.7 ± 0.5

8.4 ± 1.5

2,2',3,3',4,4'

18.18

4.4 ± 1.8

2.4 ± 1.5

2.6 ± 2.2

4.0 ± 3.8

3.56

12.6 ± 4.4

20.8 ± 2.3

5.8 ± 1.1

8.6 ± 2.7

2,2',3,4,5,5',6

7.50

1.9 ± 0.5

2.2 ± 0.4

1.7 ± 1.4

3.6 ± 5.0

2.00

9.5 ± 2.6

20.3 ± 1.4

3.4 ± 0.5

9.0 ± 1.6

2,2',3,3',4,5,6'

31.23

6.7 ± 3.5

8.7 ± 1.5

2.4 ± 1.8

5.6 ± 4.4

4.23

11.8 ± 5.2

20.3 ± 2.7

3.3 ± 1.2

8.6 ± 3.3

2,2',3,3',4',5,6

15.49

2.7 ± 1.0

4.1 ± 2.5

1.8 ± 0.9

4.6 ± 2.4

1.18

9.3 ± 1.4

19.1 ± 3.5

2.7 ± 0.2

8.3 ± 1.0

2,2',3,3',5,5',6,6'/2,2',3,3',4,4',6/2,3,3',4,4',5

33.50

5.2 ± 2.8

5.2 ± 1.7

1.2 ± 0.5

3.5 ± 2.4

2.79

10.3 ± 3.5

20.1 ± 2.4

2.9 ± 0.8

11.4 ± 2.4

2,2',3,3',4,5,6/2,3,3',4,4',5'/2,2',3,3',4,5',6,6'

9.98

5.3 ± 3.0

6.3 ± 2.1

0.6 ± 0.3

3.9 ± 2.5

5.21

10.7 ± 6.8

19.7 ± 3.7

2.9 ± 1.7

4.5 ± 4.1

2,2',3,3',4,5,5'

6.30

6.1 ± 3.4

7.8 ± 2.1

0.6 ± 0.2

4.6 ± 4.4

11.72

10.9 ± 4.7

20.6 ± 8.3

4.8 ± 4.4

11.3 ± 9.3

2,2',3,4,4',5,5'

64.49

4.4 ± 2.4

6.8 ± 2.7

0.1 ± 0.1

1.7 ± 1.3

4.72

8.6 ± 6.7

20.0 ± 4.2

2.7 ± 1.8

4.2 ± 3.8

2,3,3',4,4',5',6

1.87

9.8 ± 1.4

3.3 ± 1.7

8.5 ± 0.6

9.8 ± 1.2

1.29

11.1 ± 1.6

17.3 ± 5.3

2.4 ± 0.6

5.0 ± 1.0

2,2',3,3',4,5,6,6'

2.31

6.8 ± 1.8

8.1 ± 4.8

0.5 ± 0.4

3.7 ± 1.5

1.54

10.2 ± 1.7

15.6 ± 6.4

2.4 ± 0.6

8.6 ± 1.0

2,2',3,3',4,4',5/2,3,3',4,4',5,6

62.89

8.0 ± 2.3

10.2 ± 2.2

1.3 ± 0.5

8.9 ± 2.9

11.31

11.3 ± 6.6

17.4 ± 7.6

5.0 ± 3.5

7.5 ± 9.4

2,2',3,3',4,5,5',6'

8.63

2.4 ± 2.8

8.6 ± 4.5

0.5 ± 0.4

5.9 ± 5.6

1.69

9.6 ± 2.1

16.3 ± 6.2

2.1 ± 0.6

8.5 ± 1.1

2,2',3,4,4',5,5',6/2,2',3,3',4,4',5',6

12.06

6.9 ± 3.5

9.0 ± 6.4

-1.7 ± 3.3

4.9 ± 3.3

1.52

8.6 ± 1.8

16.0 ± 6.6

2.2 ± 0.6

7.4 ± 1.0

2,3,3',4,4',5,5'

1.65

0.8 ± 0.6

3.8 ± 0.5

4.2 ± 0.3

3.1 ± 1.3

2.92

8.7 ± 3.6

15.0 ± 1.2

2.2 ± 1.3

7.7 ± 2.1

2,2',3,3',4,5,5',6,6'/2,2',3,3',4,4',5,6

6.22

2.1 ± 0.2

2.4 ± 1.5

0.4 ± 0.2

4.1 ± 3.3

2.47

7.3 ± 2.7

10.7 ± 1.1

2.1 ± 1.0

4.2 ± 1.6

2,2',3,3',4,4',5,5'

11.28

2.7 ± 0.1

4.5 ± 2.7

1.5 ± 1.0

4.3 ± 1.5

11.42

7.1 ± 4.9

12.1 ± 6.6

3.9 ± 4.2

7.8 ± 1.9

21.29

5.6 ± 5.8

14.1 ± 3.1

2.3 ± 2.0

8.5 ± 7.3

Total concentration

920.56 ± 3.76

14.38

5.7 ± 5.4

13.5 ± 6.2

2.4 ± 1.6

7.1 ± 6.7

Average removal

8.0 ± 0.5

14.0 ± 0.9

3.0 ± 0.3

7.1 ± 0.4