Polycyclic aromatic hydrocarbons in imported Sardinops sagax : Levels and health risk assessments through dietary exposure in Nigeria

Polycyclic aromatic hydrocarbons occurrence and assessment of dietary exposure from imported canned sardines commercially marketed in local stores and supermarkets in Nigeria were evaluated for the first time

Nsikak U. Benson; Winifred U. Anake; Adebusayo E. Adedapo; Omowunmi H. Fred-Ahmadu; Kelechi P. Eke

2016

Scholarcy highlights

  • Polycyclic aromatic hydrocarbons occurrence and assessment of dietary exposure from imported canned sardines commercially marketed in local stores and supermarkets in Nigeria were evaluated for the first time
  • Mutagenic toxicities are dominated by high molecular weight PAHs
  • The degree of contamination expressed as total concentration of PAH congeners ranged between 2.53 and 35.55 μg kg−1 dry weight at λ = 210 nm, and 1.30 and 27.93 μg kg−1 at λ = 214 nm
  • The mutagenic equivalents were largely dominated by chrysene, benzofluoranthene, benzofluoranthene and benzopyrene and indenopyrene equivalence factors
  • The percentage recoveries were higher than 96%
  • The lifetime average daily dose, excess cancer rate, annual excess risk and hazard quotient risk of PAHs for carcinogenic and non-carcinogenic risks are relatively higher in preteens than children and adults
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