Nwaichi E O, Ntorgbo S A
Faculty of Engineering, The Energy Technologies Building, Jubilee Campus, Innovation Park, Triumph Road, University of Nottingham, Nottingham NG7 2TU, UK.
Department of Biochemistry, Faculty of Chemical Sciences, University of Port Harcourt P.M.B., 5323 Rivers State, Nigeria.
Toxicol Rep. 2016 Jan 13;3:167-172. doi: 10.1016/j.toxrep.2016.01.005. eCollection 2016.
Levels of sixteen polycyclic aromatic hydrocarbons (PAHs) in 30 edible tissues of selected frequently-consumed fish and seafood collected from three coastal waters of Niger Delta, namely, Sime, Kporghor and Iko were investigated in 2014. Gas chromatographic analysis were employed for PAHs determination. Observed mean PAHs levels in the samples ranged from below detection limit (BD) of analytical instrument to 22.400 ± 0.050 μg kg wet wt. in BD to 87.400 ± 0.030 μg kg wet wt. in and from BD to 171.000 ± 0.430 μg kg wet wt. in The highest average concentration of 171.000 ± 0.430 μg kg wet wt. was recorded for Indeno [1,2,3-cd]pyrene from Sime water. High molecular weight PAHs (HMW-PAHs) were generally predominant compared to low molecular weight PAHs (LMW-PAHs). The LMW- PAH/HMW-PAH ratio was <1 for all species, indicating anthropogenic origin of PAHs in the coastal waters of Niger Delta environment. Moreover, the study of the PAHs fingerprints, using specific ratios, suggests the predominance of a pyrolytic origin for observed PAHs.
2014年，对从尼日尔三角洲三个沿海水域（即西梅、科普戈尔和伊科）采集的30种常见食用鱼类和海鲜的可食用组织中的16种多环芳烃（PAHs）水平进行了调查。采用气相色谱分析法测定多环芳烃。样品中观察到的多环芳烃平均水平范围从低于分析仪器的检测限（BD）到西梅水域的22.400±0.050μg/kg湿重、科普戈尔水域的87.400±0.030μg/kg湿重以及伊科水域的171.000±0.430μg/kg湿重。西梅水域的茚并[1,2,3-cd]芘记录到最高平均浓度171.000±0.430μg/kg湿重。与低分子量多环芳烃（LMW-PAHs）相比，高分子量多环芳烃（HMW-PAHs）通常占主导地位。所有物种的LMW-PAH/HMW-PAH比值均<1，表明尼日尔三角洲沿海环境中的多环芳烃来源于人为活动。此外，利用特定比例对多环芳烃指纹图谱的研究表明观察到的多环芳烃主要来源于热解。
