Identification of polycyclic aromatic hydrocarbons in unleaded petrol and diesel exhaust emission

Abstract

Inhalation of emissions from petrol and diesel exhaust particulates is associated with potentially severe biological effects. In the present study, polycyclic aromatic hydrocarbons (PAHs) were identified from smokes released by the automobile exhaust from petrol and diesel. Intensive sampling of unleaded petrol and diesel exhaust were done by using 800-cm(3) motor car and 3,455-cm(3) vehicle, respectively. The particulate phase of exhaust was collected on Whatman filter paper. Particulate matters were extracted from filter paper by using Soxhlet. PAHs were identified from particulate matter by reverse phase high performance liquid chromatography using C(18) column. A total of 14 PAHs were identified in petrol and 13 in case of diesel sample after comparing to standard samples for PAH estimation. These inhalable PAHs released from diesel and petrol exhaust are known to possess mutagenic and carcinogenic activity, which may present a potential risk for the health of inhabitants.

Proteomic Characterization of the Cellular Effects of AhR Activation by Microbial Tryptophan Catabolites in Endotoxin-Activated Human Macrophages

“…Most AhR-ligands are halogenated dioxins, polychlorinated biphenyls, or polyaromatic hydrocarbons (PAHs) [ 8 ]. Benzo(a)pyrene (BaP) is a prototypic, widespread PAH mainly originating from incomplete combustion that may occur during tobacco smoking [ 9 , 10 , 11 ].…”

Traffic‐Related Air Pollution and Associated Human Health Risk

“…[ 23 ] Particulate matter (PM 2.5 ) leads to nearly 2 million premature deaths each year, making it the world's 13th leading cause of death. [ 24 ] The side effects include fatigue, trouble coughing, and skin irritations, as well as birth defects, immunosuppression, and cancer [ 3 ] According to World Health Organization (WHO) data from 2018, air quality in cities, and rural areas causes 4.2 million premature deaths each year due to particulate matter (PM), which causes cardiovascular, pulmonary, and carcinogenic diseases. [ 25 ] According to the epidemiological review, NO 2 and RSPM have a comparatively stronger association with respiratory disorders and a modest correlation with cough and asthma, suggesting that NO 2 and RSPM are significant concerns [ 26 ] when these small bits move deep down into the lungs, influencing both the vascular system and respiratory system.…”

Pressurized liquid extraction and gas chromatography/mass spectrometry for determination of nitrated polycyclic aromatic hydrocarbons adsorbed on refractory diesel particles

“…19,20 These pollutants were strongly adsorbed onto the partially graphitic surface and absorbed into the condensation layer around the carbonaceous core, which can explain the difficulty of extracting using classical techniques. [21][22] The alternatives to this technique are various and included the extraction by PLE (under pressure and temperature) which will be developed in this study. Operation at high temperatures results in greater solubility of analytes, faster diffusion rates, lower solvent viscosities and weakened solute-matrix interactions.…”