Table 1.

PAHs levels (μg kg⁻¹ wet wt.) for Littorina littorea from the study areas (Sime, Kporghor and Iko coastal waters).

PAHs	Sime Tai	Kpoghor	Iko
Naphthalene	BD	BD	BD
Acenaphthylene	BD	BD	BD
Acenaphthene	BD	BD	BD
Fluorene	BD	0.040 ± 0.004	BD
Phenanthrene	0.030 ± 0.004	0.010* ± 0.002	0.020 ± 0.003
Anthracene	0.020 ± 0.002	0.010* ± 0.000	0.020 ± 0.003
Fluoranthene	0.010 ± 0.000	0.030 ± 0.004	0.030 ± 0.004
Pyrene	0.030 ± 0.004	0.040 ± 0.004	0.040 ± 0.003
Benzo[a]anthracene	0.050 ± 0.004	0.002* ± 0.004	0.080 ± 0.004
Chrysene	0.080* ± 0.004	BD	0.010* ± 0.002
Benzo[b]fluoranthene	4.240* ± 0.010	13.300 ± 0.030	16.800 ± 0.040
Benzo[k]fluoranthene	0.004.001	BD	0.040* ± 0.004
Benzo[a]pyrene	0.010* ± 0.000	0.010* ± 0.000	0.020* ± 0.003
Indeno[1,2,3-cd]pyrene	2.650* ± 0.010	22.400* ± 0.050	13.100* ± 0.020
Dibenzo[a,h]anthracene	0.010* ± 0.002	0.002 ± 0.000	0.002 ± 0.000
Benzo[g,h,i]perylene	0.020* ± 0.002	0.010 ± 0.002	0.010 ± 0.002
Total	7.150* ± 0.040	35.800* ± 0.100	30.100*h ± 0.090
LMW-PAH/HMW-PAH	0.010* ± 0.001	0.002* ± 0.000	0.001* ± 0.000
BaA/(BaA + Chry)	0.380 ± 0.001	1.000* ± 0.003	0.890 ± 0.001

Means with superindices (*) across rows are significantly different (P < 0.05), values are mean ± S.E.M (n = 10). BD = below detection limit of 0.0001.