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Table 4 Distribution in concentrations of PAH residues in compartments In Ilase water, Snake Island

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

Mean (sum), ng/g

Water

Sediment

Benthos

Fish

Parasite

NAP

0.33 (0.65)

142.63 (285.26)

0.32 (0.97)

0.46 (1.38)

0.28 (0.55)

ACY

0.76 (1.52)

2.59 (5.17)

0.02 (0.50)

0.10 (0.28)

0.03 (0.06)

ACE

0.04 (0.07)

0.63 (1.27)

0.06 (0.17)

0.44 (1.33)

0.06 (0.12)

FL

1.72 (3.43)

5.31 (10.62)

0.57 (1.71)

0.55 (1.66)

0.36 (0.72)

PHE

0.96 (1.91)

7.47 (14.93)

1.52 (4.57)

0.86 (2.57)

2.01 (4.02)

ANT

0.79 (1.57)

32.22 (64.44)

0.18 (0.55)

0.30 (0.91)

1.44 (2.87)

FLU

0.34 (0.68)

4.17 (8.33)

0.93 (2.78)

0.40 (1.19)

1.03 (2.05)

PYR

2.86 (5.72)

111.74 (223.48)

0.40 (1.19)

0.34 (1.03)

0.09 (0.18)

B(a)ANT

0.18 (0.36)

3.96 (7.91)

0.08 (0.23)

0.08 (0.23)

0.07 (0.14)

CHY

0.31 (0.61)

6.95 (13.9)

0.03 (0.10)

0.08 (0.23)

0.74 (1.47)

B(a)FLU

0.12 (0.23)

7.8 (15.59)

0.03 (0.10)

0.05 (0.14)

0.02 (0.04)

B(k)FLU

1.27 (2.53)

11.81 (23.61)

0.03 (0.10)

0.06 (0.17)

0.03 (0.06)

B(a)PYR

0.40 (0.79)

6.00 (11.93)

0.27 (0.81)

0.23 (0.70)

0.29 (0.58)

IN(cd)PYR

0.03 (0.06)

2.60 (5.39)

0.01 (0.02)

0.01 (0.03)

0.01 (0.01)

Di(ah)ANT

0.05 (0.10)

1.55 (3.09)

0.07 (0.20)

0.03 (0.08)

0.07 (0.13)

B(ghi)PYL

0.06 (0.11)

0.21 (0.41)

0.02 (0.05)

0.03 (0.08)

0.03 (0.05)

Sum (mean) PAH

10.17 (0.64)b

348.00 (21.75)

4.53 (0.28)a

12.02 (0.75)b

6.52 (0.41)a

% concentration in compartment

2.67

91.28

1.19

3.15

1.71

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