PDF(Pubmed)
Abstract：
Epileptic power supply in Sub-Saharan countries of Africa has warranted the use of power generators as an alternative source of power supply. Exhaust emission from these generators is associated with Polycyclic Aromatic Hydrocarbon (PAHs). Hence, this study focused on the determination of levels of PAHs in the emission of different brands of power generators used in Nigeria. Exhaust emissions of different power generators were sampled using a filter-sorbent sampling system with polyurethane foam (PUF) as an adsorbent material. Analysis of PAHs was carried out using a Gas Chromatograph coupled to a mass selective detector (GC- MS) operated on Electron Ionization (EI) mode. The results showed the ∑ PAHs range 14.91-26.0 μ g m - 3 . Bap was the most abundant of all the compounds with a concentration of 2.6 μ g m - 3 with a range of 2.08-3.07 μ g m - 3 . The Incremental Life Cancer Risk (ILCR) values of all the generator\'s emission sampled are higher than 10- 4 for both children and adult which indicate a high potential cancer risk from inhalation of emission from these generators while Hazard Quotient (HQ) values from all the power generating set in this study are all above 1 which indicated high associated non-carcinogenic. The study revealed the levels of PAHs associated with the emission of power generators in Nigeria.
摘要：
非洲撒哈拉以南国家的癫痫电源保证使用发电机作为替代电源。这些发电机的废气排放与多环芳烃(PAHs)有关。因此，这项研究的重点是确定尼日利亚使用的不同品牌发电机的排放中的PAHs水平。使用聚氨酯泡沫（PUF）作为吸附材料的过滤吸附剂采样系统对不同发电机的废气排放进行采样。使用与在电子电离(EI)模式下操作的质量选择检测器(GC-MS)偶联的气相色谱仪进行PAHs的分析。结果表明，∑PAHs的范围为14.91-26.0μgm-3。Bap是所有化合物中最丰富的，浓度为2.6μgm-3，范围为2.08-3.07μgm-3。对于儿童和成人,所有发电机排放采样的增量生命癌症风险(ILCR)值均高于10-4,这表明吸入这些发电机排放的潜在癌症风险很高,而在本研究中,所有发电机组的危险商(HQ)值均高于1,表明高相关非致癌性。该研究揭示了与尼日利亚发电机排放相关的PAHs水平。
