Sites

1

2

3

4

5

6

7

8

3

4

5

6

7

PAHs

January 2008 (rainy season)

June 2008 (dry period)

Mean

Nap

2.1

4.2

6.5

22.9

7.2

8.4

18.8

73.4

67.0

26.0

28.7

24.1

Acy

31.7

25.9

135.1

69.6

58.5

391.3

126.1

59.2

53.3

62.8

26.7

60.8

63.8

89.6

Ace + Flu

6.6

4.3

11.3

7.5

8.3

12.5

14.2

15.7

10.3

16.4

8.3

3.6

13.4

10.2

Phe

331.3

136.7

873.9

610.2

631.2

353.4

402.0

473.4

71.4

43.5

63.4

36.9

27.8

311.9

Ant

10.4

8.6

16.8

16.1

18.8

11.3

12.7

20.4

14.4

Flt

87.8

81.3

180.9

99.4

129.6

157.2

131.7

130.4

15.3

16.5

12.4

10.0

10.8

81.8

Pyr

76.3

76.1

147.7

93.4

119.2

197.8

209.6

174.6

10.1

19.8

9.7

9.5

11.1

88.8

BaA

5.7

3.4

4.7

4.3

4.3

4.0

4.8

9.5

5.1

Chr

19.4

13.2

36.9

16.0

25.5

3.8

21.3

71.1

5.1

5.7

4.5

4.4

4.7

17.8

BbF

ND*

4.9

4.8

7.2

3.8

4.1

3.4

5.0

3.5

4.6

BkF

12.8

10.4

12.2

6.7

16.0

18.1

27.3

15.5

3.6

13.6

BaP

10.9

11.9

54.5

40.9

87.3

90.9

15.4

46.2

44.7

DahA

**

8.1

10.6

9.9

8.3

9.2

BghiP

***

29.1

78.6

83.3

23.4

53.6

IcdP

17.2

23.9

28.4

17.1

21.7

∑PAHs

595.1

380.7

1478.9

977.8

1175.9

1353.3

1093.9

1073.4

188.2

242.2

199.1

156.2

163.7

677.5