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Table 5 Distribution in concentrations of PAH residues in compartments in Ibasa creek, Snake Island, Lagos

From: Bioaccumulation of polycyclic aromatic hydrocarbons, histopathological alterations and parasito-fauna in bentho-pelagic host from Snake Island, Lagos, Nigeria

Sum (mean), ng/g

Water

Sediment

Benthos

Fish

Parasite

NAP

1076.86 (538.43)

284.67 (142.34)

0.95 (0.32)

0.48 (0.16)

0.71 (0.36)

ACY

2.15 (1.08)

11.56 (5.78)

0.06 (0.02)

0.35 (0.12)

0.07 (0.04)

ACE

0.20 (1.00)

0.99 (0.50)

0.13 (0.04)

0.41 (0.14)

0.14 (0.07)

FL

4.90 (2.45)

14.51 (7.26)

1.66 (0.55)

0.68 (0.23)

1.01 (0.51)

PHE

2.13 (1.07)

17.05 (8.53)

3.68 (1.23)

9.72 (3.26)

4.50 (2.25)

ANT

8.80 (4.40)

61.09 (30.54)

1.30 (0.43)

5.34 (1.78)

1.38 (0.69)

FLU

4.60 (2.30)

21.02 (10.51)

2.96 (0.99)

5.58 (1.86)

2.52 (1.28)

PYR

30.96 (15.48)

222.98 (111.49)

1.85 (0.62)

5.52 (1.84)

1.49 (0.75)

B(a)ANT

1.40 (0.70)

8.47 (4.24)

0.17 (0.06)

0.68 (0.23)

0.37 (0.19)

CHY

1.07 (0.54)

14.35 (7.18)

0.14 (0.05)

0.45 (0.15)

0.14 (0.07)

B(a)FLU

2.03 (1.02)

15.29 (7.65)

0.05 (0.02)

0.06 (0.02)

0.07 (0.04)

B(k)FLU

5.02 (2.51)

28.66 (14.33)

0.14 (0.05)

0.05 (0.02)

0.06 (0.03)

B(a)PYR

1.72 (0.86)

10.86 (5.43)

0.60 (0.20)

0.77 (0.26)

0.56 (0.28)

IN(cd)PYR

0.12 (0.06)

4.33 (2.17)

0.02 (0.01)

0.00 (0.00)

0.01 (0.01)

Di(ah)ANT

0.12 (0.06)

3.10 (1.55)

0.18 (0.06)

0.41 (0.14)

0.09 (0.05)

B(ghi)PYL

0.08 (0.04)

0.65 (0.33)

0.07 (0.02)

0.09 (0.03)

0.03 (0.02)

Sum (mean) PAH

571.08 (36.79)

359.79 (25.49)a

4.65 (0.29)b

10.20 (0.64)a

6.58 (0.41)a

% concentration in compartment

57.83

40.07

0.00

0.01

0.01

Biota-sediment accumulation factor (BSAF)

Nil

Nil

0.01

0.03

0.02

  1. aMean value significant at 0.05 level
  2. bMean value significant at 0.01 level
  3. Intervention values—PAHs (sum of at least 10 PAH residues) > 40 mg/kg (sediment), > 70,000 ng/l (water)
  4. Target values—PAHs (sum of at last 10 PAH residues) < 1 mg/kg (sediment), < 1000 ng/l (water)
  5. EGASPIN, 2002