Concentrations and profiles of polycyclic aromatic hydrocarbons in some popular fish species in Nigeria.
J Food Prot
; 78(3): 554-60, 2015 Mar.
Article
in En
| MEDLINE
| ID: mdl-25719880
ABSTRACT
The concentrations and profiles of polycyclic aromatic hydrocarbons (PAHs) in 10 popular fish species in the Nigerian market were determined with a view to providing information on the health hazards associated with the consumption of these fish species. The concentrations of PAHs were measured by gas chromatography-mass spectrometry after extraction by ultrasonication with acetone-dichloromethane and clean up. The concentration ranges of the Σ16 PAHs were 20 to 39.6 µg kg(-1) for Parachanna obscura (African snake head), 6.8 to 532.3 µg kg(-1) for Oreochromis niloticus (tilapia), 7.4 to 91.1 µg kg(-1) for Gymnarchus niloticus (Asa), 13.1 to 34.1 µg kg(-1) for Sebastes fasciatus (red fish), 11.2 to 80.0 µg kg(-1) for Gadus morhua (cod), 23.9 to 34.6 µg kg(-1) for Chrysicthys nigrodigitatus (silver cat fish), 63.4 to 131.4 µg kg(-1) for Sardinella aurita (sardine), 22 to 52.9 µg kg(-1) for Trachurus trachurus (Atlantic horse mackerel), 21.0 to 63.7 µg kg(-1) for Scomber scombrus (mackerel), and 27.7 to 44.5 µg kg(-1) for Pseudotolithus senegalensis (croaker). Benzo[a]pyrene occurred in 23% of these fish samples at concentrations above the European Union permissible limit of 2.0 µg kg(-1). The calculated margins of exposure based on the indicators for occurrence and effects of PAHs were greater than 10,000 indicating no potential risk for the consumers of the species evaluated in this study.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Polycyclic Aromatic Hydrocarbons
/
Food Contamination
/
Seafood
Type of study:
Etiology_studies
/
Risk_factors_studies
Limits:
Animals
Country/Region as subject:
Africa
Language:
En
Journal:
J Food Prot
Year:
2015
Type:
Article
Affiliation country:
South Africa