Department of Fisheries, Faculty of Science, Lagos State University, Ojo, Lagos State, Nigeria; Spatial Science, Islands and Sustainability, University of Groningen, Netherlands.
Department of Fisheries, Faculty of Science, Lagos State University, Ojo, Lagos State, Nigeria.
Mar Pollut Bull. 2024 Oct;207:116807. doi: 10.1016/j.marpolbul.2024.116807. Epub 2024 Aug 10.
This study examined ten heavy metals in five species: Macrobrachium vollenhovenii, Penaeus monodon, P. notialis, Chloroscombrus chrysurus, and Pseudotolithus typus, from Makoko floating slum, Lagos Lagoon to discern their bioaccumulation potentials, sources of origin, and health implications. The concentrations were in this order: Fe (4.172-10.176) > Zn (1.310-5.754) > Mn (0.475-2.330) > Cu (0.238-1.735) > Pb (0.121-0.391) > Cd (0.055-0.283) > Co (0.056-0.144) > Ni (0.039-0.121) > Cr (0.022-0.095) > As (0.003-0.031) mg/kg. The MPDI denotes "low toxicity," and the BAF/BSAF revealed that benthic species had higher bioconcentration potentials. Multivariate analyses revealed that heavy metals exhibited mutual relationships during chemical transport, and their sources were both geogenic and human-induced. The HI values were below 1, and the TCR values were below the threshold of 1 × 10. This suggests that the probabilities of noncancer and carcinogenic risks in human populations due to long-term consumption of the evaluated species are unlikely.
Macrobrachium vollenhovenii、Penaeus monodon、P. notialis、Chloroscombrus chrysurus 和 Pseudotolithus typus，它们来自拉各斯泻湖的 Makoko 浮动贫民窟，以辨别它们的生物积累潜力、来源和健康影响。浓度顺序为：Fe（4.172-10.176）>Zn（1.310-5.754）>Mn（0.475-2.330）>Cu（0.238-1.735）>Pb（0.121-0.391）>Cd（0.055-0.283）>Co（0.056-0.144）>Ni（0.039-0.121）>Cr（0.022-0.095）>As（0.003-0.031）mg/kg。MPDI 表示“低毒性”，而 BAF/BSAF 表明底栖物种具有更高的生物浓缩潜力。多元分析表明，重金属在化学运输过程中表现出相互关系，其来源既有地质成因又有人为成因。HI 值低于 1，TCR 值低于 1×10 的阈值。这表明，由于长期食用评估物种，人群中非癌症和致癌风险的可能性不大。
