This study determined the indoor air levels of polychlorinated biphenyls (PCBs) in some selected public bars in Southern part of Nigeria. The result obtained was used to carry out health risk assessment of exposure to PCBs in these indoor environment.s. Air samples were obtained from the selected popular bars using polyurethane (PUF) passive samplers. PCB quantification was done using GC–MS operated in selected ionization mode (SIM). Health risk assessment from exposure of these pollutants was determining using toxicity equivalence quotient (TEQ), inhalation risk assessment (IRA), incremental life cancer risk (ILCR), and hazard quotient (HQ). The results showed the average concentration range of 0.15–0.17 µg/m³. The mean TEQ at various locations was 0.00050 ng WHO-TEQ/m³, while the calculated daily inhalation exposure values were 0.0004 ng TEQ kg⁻¹ day⁻¹ for adults and 0.0002 ng TEQ kg⁻¹ day⁻¹ for children. The values of IRA, ILCR for the children, and HQs for both adults and children were higher than the WHO permissible limits. The study revealed that both non-carcinogenic and carcinogenic risks associated with longtime exposure to PCBs in the indoor environment public bars.

该研究确定了尼日利亚南部一些选定公共酒吧的室内空气中多氯联苯 (PCB) 的含量。所得结果用于对这些室内环境中多氯联苯暴露进行健康风险评估。空气样本是使用聚氨酯 (PUF) 被动采样器从选定的流行酒吧中获取的。PCB 定量是使用在选定电离模式 (SIM) 下运行的 GC-MS 完成的。暴露这些污染物的健康风险评估使用毒性当量商数 (TEQ)、吸入风险评估 (IRA)、增加生命癌症风险 (ILCR) 和危害商数 (HQ) 来确定。结果显示平均浓度范围为 0.15–0.17 µg/m ³。不同地点的平均 TEQ 为 0.00050 ng WHO-TEQ/m ³，而计算出的每日吸入暴露值为成人0.0004 ng TEQ kg ^-1 天^-1和儿童0.0002 ng TEQ kg ^-1 天^-1。儿童的 IRA、ILCR 和成人和儿童的 HQ 值均高于 WHO 允许的限值。研究表明，在室内环境公共酒吧中长期接触多氯联苯存在非致癌和致癌风险。