The concentrations and potential human health risks through dietary ingestion of PCBs in canned sardines collected from the Nigerian market were determined. The results shows that the total PCBs concentrations varied from <LOD to 668 ng g⁻¹. The composition of PCBs in the canned sardines followed the order: Penta-PCBs > Hexa-PCBs > Tetra-PCBs > Di-PCB > Deca-PCB > Tri-PCBs > Hepta-PCBs > Octa-PCB. The estimated daily intake for total PCBs ranged from <LOD to 926 ng kg⁻¹ bw day⁻¹ and < LOD to 232 ng kg⁻¹ bw day⁻¹ for child and adult exposures respectively. The TEQs values of the dl-PCBs indicated that these canned sardines are unsafe for consumption. The hazard index and total cancer risk values in 53% of the canned sardines were greater than 1 and 1 × 10⁻⁶ respectively indicating that there are adverse non-carcinogenic and carcinogenic risks associated with human consumption of these canned sardines.

确定了通过饮食摄入从尼日利亚市场收集的沙丁鱼罐头中多氯联苯的浓度和对人类健康的潜在危害。结果表明，PCB的总浓度从<LOD到668 ng g ^-1不等。沙丁鱼罐头中PCB的组成顺序如下：五边PCB>六边PCB>四面PCB> Di-PCB> Deca-PCB> Tri-PCB> Hepta-PCB> Octa-PCB。多氯联苯的估计每日摄入量范围从<LOD到926 ng kg ^-1 bw day ^-1和<LOD到232 ng kg ^-1 bw day ^-1分别适用于儿童和成人。dl-PCBs的TEQ值表明这些罐装沙丁鱼不安全食用。沙丁鱼罐头中53％的危险指数和总癌症风险值分别大于1和1×10 ^-6，表明与人类食用这些沙丁鱼罐头相关的不良非致癌和致癌风险。