Gasoline Vapor Research Articles

Comparative Analysis of the Detonation Combustion of Kerosene and Gasoline Vapors in a Laval Nozzle

Comparative Analysis of the Detonation Combustion of Kerosene and Gasoline Vapors in a Laval Nozzle

Occupational exposure to gasoline in gasoline station male attendants promotes M1 polarization in macrophages.

Several studies have reported the toxicological implications of exposure to petroleum hydrocarbon fumes in animal models. There is little documentation on the effect of such exposure on oxidative stress levels and immune response. To our knowledge, no documentation of M1 polarization in macrophages in gasoline station male attendants. Therefore, this study aimed to evaluate the harmful effects of gasoline vapors in 62 male attendants (16-70 years) compared to 29 age- and sex-matched-unexposed controls. The attendants were recruited from Damietta governorate gasoline stations. Gasoline exposure induced a significant increase in tumor necrosis factor-α (TNF-α) level (p < 0.05) as well as a slight but non-significant increase in the activity of acidic mammalian chitinase (AMCase) (p > 0.05). Further TNF-α/AMCase ratio was significantly increased (p < 0.01) in sera of the attendants when compared to those of the healthy controls. Also, the total leucocytic and lymphocytic counts were significantly increased (p < 0.01 and p < 0.001, respectively). On contrary, neutrophils to lymphocytes ratio (NLR) and platelets to lymphocytes ratio (PLR) were significantly decreased (p < 0.05 and p < 0.001, respectively). In addition, significant reduction in hemoglobin (Hb) concentration, plasma glutathione reduced form (GSH), and catalase, as well as superoxide dismutase (SOD) activities in red blood cells were observed in the exposed attendants. As a result, malondialdehyde (MDA), nitric oxide (NO) levels, and NO/AMCase ratio were significantly increased (p < 0.05). In conclusion, this study inferred that prolonged gasoline exposure can mediate immune activation, especially M1 macrophages polarization, possibly via oxidative stress-mediated mechanism.

Effects of ignition position on the ignitability and flame behavior of stratified gasoline vapor

Stratified vapor–air mixtures are formed owing to evaporation after a leakage of gasoline in confined spaces. In this study, the effects of ignition position and ignition delay (tig), defined as the time interval between ignition and the moment of fuel spill, on the ignitability and flame behavior of the stratified vapor above a 0.8-mm-thick gasoline layer were experimentally investigated in a horizontal duct. Experimental results revealed that the ignitability of the stratified gasoline vapor depended on both ignition position and tig. The closer the ignition source was to the oil surface, the earlier the local stratified gasoline vapor became ignitable and thereafter lost flammability. A two-zone flame structure, including a blue premixed flame and a following yellow diffusion flame, was observed, and the blue flame propagated along only a certain layer of the gasoline vapor. The depth of the leading blue flame first increased and thereafter decreased with an increase in tig. The heat release owing to the yellow diffusion flame played an important role in the maximum explosion overpressure (Pmax), which closely related to both ignition position and tig. For a certain tig, Pmax was nearly independent of ignition position. The relationship between Pmax and tig varied with ignition position. The highest value of Pmax was obtained when ignition source was around the center of the duct, and the lowest value of 66 kPa appeared when ignition source was close to the duct roof.

Influences of a square and circular vent on gasoline vapor explosions and its propagation: Comparative experimental study

Although vents' shapes influence the discharge coefficients, there is a lack of discussions of the vent shapes in vent design guides and explosion-venting investigation. This work carried out detail experiments in a 10 L cuboid vented vessel containing a circular or a square vent to investigate the influence of vent shapes on explosions where the dimensionless vent coefficients, initial gasoline volumes and vent locations are different. A discussion of the various characteristics of the explosion was presented and compared. Results show that the inner flame will continue to propagate and oscillate after flame ejected from the vent in the vessel, the oscillation of flame tip propagation under circular vent is larger than the square one. As gasoline volumes increase or vent coefficients decrease, the amplitude of oscillation enhancement increases. The Pmax and KG under the circular vents are little different from the square one under different dimensionless vent coefficients, initial gasoline volumes, and vent locations, indicating that the circular vents have almost the same venting effects as the square vents with the same vent area. The results may be meaningful for vapor explosion-venting and serving as a reference for the optimal vent design in practical applications.

Improving the Performance of Composite Hollow Fiber Membranes with Magnetic Field Generated Convection Application on pH Correction.

The membranes and membrane processes have succeeded in the transition from major technological and biomedical applications to domestic applications: water recycling in washing machines, recycling of used cooking oil, recovery of gasoline vapors in the pumping stations or enrichment of air with oxygen. In this paper, the neutralization of condensation water and the retention of aluminum from thermal power plants is studied using ethylene propylene diene monomer sulfonated (EPDM-S) membranes containing magnetic particles impregnated in a microporous propylene hollow fiber (I-PPM) matrix. The obtained membranes were characterized from the morphological and structural points of view, using scanning electron microscopy (SEM), high resolution SEM (HR-SEM), energy dispersive spectroscopy analysis (EDAX) and thermal gravimetric analyzer. The process performances (flow, selectivity) were studied using a variable magnetic field generated by electric coils. The results show the possibility of correcting the pH and removing aluminum ions from the condensation water of heating plants, during a winter period, without the intervention of any operator for the maintenance of the process. The pH was raised from an acidic one (2–4), to a slightly basic one (8–8.5), and the concentration of aluminum ions was lowered to the level allowed for discharge. Magnetic convection of the permeation module improves the pH correction process, but especially prevents the deposition of aluminum hydroxide on hollow fibers membranes.

The Effect of Black Cumin (Nigella sativa) Oil Supplementation on Hematotoxicity Induced by Benzene in Gasoline Vapors from Gas Stations in Male Wistar Rats

This study aimed to prove the effect of black cumin oil supplementation through analysis of levels of CYP2E1, MDA, GSH, and hematological profiles in experimental animals, Wistar rats, which were exposed to benzene in gasoline vapors from gas stations. Sixty-four experimental Wistar rats were divided into eight groups with eight rats each, two control groups (C1 and C2), and six experimental groups (T1, T2, T3, T4, T5, and T6). Blood samples of experimental rats were taken through intracardiac with ketamine-xylazineacepromazine anesthesia on day 15 for group C1, C2, T1, T3, and T5; and day 29 for group T2, T4, and T6. The ELISA method measured the levels of CYP2E1, GSH, and MDA in this study, while the hematological profile used a hematology analyzer. This study indicates that benzene in gasoline vapors exposure caused significant hematotoxicity (P &lt;0.05). Supplementation of black cumin seed oil at a dose of 2.5 ml/kg, 5 ml/kg, and 10 ml/kg, all of which have the potential to provide a protective effect against the hematotoxicity of benzene in gasoline vapors through increased internal antioxidants (GSH). The GSH can play a role in the mechanism of vapor metabolism of substances in gasoline vapors in the body through decreased CYP2E1 levels and decreased MDA levels. Further research is still needed with a more extended treatment duration to ascertain the chronic effects of benzene hematotoxicity on the genomic pathway to assess black cumin’s role, whether in the form of oil, powder, or other forms of extraction.

Gasoline Vapor Explosion Modes in Confined Space under Weak Constraint Conditions

The article focuses on the establishment of the experiment system in confined space with weak constraint surface. It also studies the overpressure variation of gasoline vapor explosion, the mechanism of flame shapes with time, and the coupling relationship between them under different weak constraint conditions. Meantime, the development modes of external flame after the damage of weak constraint are categorized. The results show that: 1. With the increasing area of weak constraint surface, the development modes of external flame can be categorized into: under-expansion jet combustion, jet combustion, external explosion. 2. When an external explosion occurs, the change of internal overpressure in confined space is more complicated, with multiple overpressure peaks as well as strong Helmholtz oscillations. 3. Lower initial gasoline vapor concentration and large area of weak constraint surface are more conducive to external explosion.

Estimation of the specific heat capacity ratio of gasoline vapor based on the relationship between the maximum pressure rise rate and initial pressure of gas explosion

Gasoline is volatile and can form a flammable gas mixture with air easily. Researches on the gas explosions still need to be developed so that more effective explosion prevention techniques and measures can be proposed. The maximum overpressure rise rate and deflagration index are two important parameters for measuring gas explosion damage power. The relationship between these two parameters and the initial pressure is controversial. Razus et al. insisted that it was a linear relationship, however, Faghih et al. declared that it was an exponential relationship. In this paper, the relationship between the maximum pressure rise rate (the deflagration index) and the initial pressure is deduced and discussed. The results show that the relationship is still linear. On this basis, the deduced relationship formula is used to estimate the specific heat capacity of gasoline vapor. Results show that the estimated value is reasonable and acceptable.

Application of computational fluid dynamics in the study of the caribbean petroleum corporation gasoline vapour dispersion

Computational Fluid Dynamics (CFD) is used to predict the dispersion of a gasoline vapour cloud. The model was validated using the results of the analysis of Buncefield incident (2005) in the UK and a new method of simulation that involves the interaction of liquid fuel and air during the dispersion was introduced. The Caribbean Petroleum Corporation (CAPECO) incident (2009) was simulated using the developed CFD modelling method.The results of CFD analysis of this incident focused on the release of flammable liquid fuels that was followed by the formation of vapour clouds. The effect of wind speed and the gasoline evaporation surface area were analysed.The CFD simulations showed that the main factors affecting the dispersion and behaviour of the vapour clouds are release surface area, wind speed, topography, turbulence and obstacles in the area. The simulation results showed similar behaviour to that observed in the real-life incidents in terms of the vapour cloud behaviour and the extent of damage.This work used the realizable k−ε model which was previously validated for the dispersion of dense gases. This turbulence model was helpful in the study of the wind speed (nil to low) characteristics of the CAPECO dispersion accident and the dispersion of the liquid gasoline droplets was successfully simulated using ANSYS FLUENT's built-in Discrete Phase Model (DPM). This work simulated evaporation of gasoline liquid and droplet dispersion in a wide area and from a large source with the presence of obstacles. Dispersion of the gasoline droplets was successfully accounted for by the inclusion of the DPM sub-models for cloud dispersion, namely, the stochastic tracking and the Discrete Random Walk model (DRW). It could be concluded that this work validates the feasibility of using the DPM sub-model application for the simulation of volatile liquids evaporation and dispersion through a domain that includes several obstacles and high levels of congestion.

Experimental study on flame propagation through stratified crude oil vapor in a horizontal duct

Stratified vapor–air mixtures are formed owing to evaporation after crude oil leaks in confined spaces. The concentration distribution, ignitability of the stratified vapor, flame propagation in it, and pressure buildup owing to combustion must be investigated to obtain knowledge for explosion protection and mitigation. In this study, the concentration distribution of the vapor above a 1.0-mm-thick crude oil layer in a horizontal duct was measured, and the effects of the ignition delay (tig) on the ignitability, flame behavior, and combustion overpressure were investigated. The experimental results revealed that the average concentration gradient of vapor decreased with the evaporation of the crude oil layer. The stratified vapor could be ignited from 10 to 50 min, after fuel supply, by an electric spark 150 mm above the oil surface. A two-zone flame structure including a blue premixed flame and yellow diffusion flame was observed, and the flame was farther from the oil surface as tig increased. The maximum horizontal speed of the blue flame tip and overpressure owing to combustion initially increased and then decreased as tig increased from 10 to 50 min. The yellow diffusion flame had an important function in the maximum explosion overpressure. A maximum overpressure of 530 kPa was measured at tig = 25 min, which was 80 kPa higher than that of stratified gasoline vapor obtained under nearly identical conditions in previous research.

Prediction of evaporative diffusion behavior and explosion damage in gasoline leakage accidents

To meet the requirements for use as an automotive fuel, motor gasoline must be highly flammable and combustible. In addition, because gasoline is highly volatile, in the event of its leakage from a storage tank, a large amount of vapor is rapidly generated from the surface of the gasoline and mixes with the air, forming a flammable gas mixture in the immediate surroundings. If the flammable gas mixture in an enclosure is ignited, the gasoline vapor burns explosively, causing extensive damage. Therefore, for risk management in a gasoline storage area, assuming a gasoline leakage accident, it is necessary to predict the fire hazard for the inflammable vapor and the explosion damage. The aim of this study is to obtain the knowledge necessary for the risk assessment of a gasoline storage area. A prediction model for the spread, evaporation, and diffusion behavior of leaked gasoline was proposed. The proposed model was verified by conducting evaporative diffusion and ignition tests on leaked gasoline. Furthermore, a methodology was suggested for evaluating the explosion risk caused by vapor generated from leaked gasoline spread on the floor. The proposed method enables the prediction of the explosion damage in the event of gasoline leakage.

Fabrication of thin film sensors by spin coating using sol-gel LaCrO3 Perovskite material modified with transition metals for sensing environmental pollutants, greenhouse gases and relative humidity

In this study, we are reporting the fabrications of undoped LaCrO3 and Ni2+, Fe3+, Co2+ modified LaCrO3 thin films by spin coating method using the sol-gels prepared for these thin film samples. The structural properties of the spin coated LaCrO3 thin films measured by X-ray diffractometer (XRD), which confirms the formation of orthorhombic LaCrO3 nanoparticles. The morphological properties of the prepared films were investigated by the ease of scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HR-TEM) where the orthorhombic and crystalline LaCrO3 nanoparticles were observed. Energy dispersive x-ray analysis (EDAX) was utilized for the determination of elemental composition. The prepared material was found be in perfect elemental composition. The surface area and BJH pore distribution was observed by Brunauer-Emmett-Teller (BET) analysis. The Ni2+, Fe3+, Co2+modified LaCrO3 thin film found with high surface area of 86.32 m2/g. Optical properties of both prepared materials investigated by ultraviolet differential reflectance spectroscopy (UV-DRS) to compare band gap energy of prepared sensors. It is observed that due to modification of transition metals, band gap energy of modified LaCrO3 sensor is found to be declined. The electrical properties were carried out to confirm semiconducting behaviour of LaCrO3 semiconductor. The thin films were subjected for gas sensing study of CO, CO2, NO2, LPG, toluene vapours and petrol vapours. The modified LaCrO3 sensor found to be highly sensitive for CO2, CO, and NO2 gases with response 82.14 (300 °C), 74.52 (200 °C) and 65.18% (150 °C) respectively. The relative humidity from 10 to 90% at 20 Hz found to be efficient for modified LaCrO3 sensor. In summary it can stated that transition metal doping successful to tune the band gap energy, porosity and surface area of modified LaCrO3 sensor. Due to this the sensor properties such as% response,% selectivity, response recovery, reusability and humidity sensing performance found to enhance for modified LaCrO3 sensor.

Discrimination of Methanol from Ethanol in Gasoline Using a Membrane-type Surface Stress Sensor Coated with Copper(I) Complex

Abstract We successfully fabricated a novel sensing platform, a Membrane-type Surface stress Sensor (MSS) coated with copper(I) complex bearing phen and BINAP ligands, [Cu(phen)((±)-BINAP)]PF6 (1, phen = 1,10-phenanthroline, BINAP = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl), for specific molecular sensing. Based on the transduction of mechanical stresses derived from sorption-induced deformation of Cu(I) complex, the detection performance of various volatile organic compounds (VOCs) has been investigated. The fabricated sensor devices showed selective responses to methanol over a wide range of VOCs. In addition, distinct MSS signals upon exposure to methanol were observed for mixing samples of methanol in n-hexane and gasoline with clear discrimination of ethanol mixtures. In fact, gasoline vapor with 1% methanol exhibited much higher MSS responses than 20% ethanol containing gasoline samples. Methanol contamination in gasoline and related petroleum samples is a world-wide common problem in the automobile and fuel sectors where detection of methanol contaminants with portable devices by easy procedures is required. The current research results will contribute to fulfilling these social demands.

Updating Real-World Profiles of Volatile Organic Compounds and Their Reactivity Estimation in Tunnels of Mexico City

The main objective of this work was to bring to date the exhaust and evaporative volatile organic compound (VOC) profiles from light-duty gasoline vehicles, carrying out a sampling and analysis campaign in two tunnels of Mexico City. The abundance of exhaust-emission VOC profiles was the same in 2018 as in 1998 (alkanes &gt; aromatics &gt; olefins &gt; acetylene), albeit exhibiting large differences (67%, 17%, 12%, and 4% for 2018, and 50%, 26%, 16%, and 8% for 1998, respectively). An important reduction of 69% and 77% in VOC concentrations was registered inside and outside of the tunnel, respectively, in comparison with 1998. In the ambient air, alkanes accounted for 77%, since high concentrations of liquefied petroleum (LP) gas species are still present. Ethylene, propylene, 1-butene, and toluene from tunnel emissions contributed prominently to ozone formation, while the most reactive gasoline vapors were pentenes, pentanes, and butenes, although the ozone formation potential due to VOCs in tunnel emissions and ambient air also had a significant reduction. These results demonstrate that strategies carried out in the last 20 years were successful in achieving a better air quality, although the aromatic and olefin content in gasolines needs to be further reduced to lower the concentrations of toxic and reactive species.

Evaluation of Gasoline Evaporative Emissions from Fuel-Cap Removal after a Real-World Driving Event

This study evaluated gasoline evaporative emissions from fuel-cap removal during the refueling process (or “puff loss”) for one gasoline vehicle in the Japanese market. Specifically, the puff loss emissions were measured after a real-world driving event in urban Tokyo, Japan for different seasons and gasoline types. The experimental results indicated higher puff loss emissions during summer than in winter and spring despite using low vapor pressure gasoline during summer. These higher puff loss emissions accounted maximally for more than 4 g of the emissions from the tested vehicle. The irregular emission trends could be attributed to the complex relationships between physical parameters such as fuel-tank filling, ambient temperature, ambient pressure, and gasoline vapor pressure. Furthermore, an estimation model was developed based on the theory of thermodynamics to determine puff loss emissions under arbitrary environmental conditions. The estimation model included no fitting parameter and was in good agreement with the measured puff loss emissions. Finally, a sensitivity analysis was conducted to elucidate the effects of three physical parameters, i.e., fuel tank-filling, ambient pressure, and gasoline type, on puff loss emissions. The results indicated that fuel tank-filling was the most important parameter affecting the quantity of puff loss emissions. Further, the proposed puff loss estimation model is likely to aid the evaluation of future volatile organic compound emission inventories.

Effects of gas concentration and obstacle location on overpressure and flame propagation characteristics of hydrocarbon fuel-air explosion in a semi-confined pipe

Experiments were conducted in a semi-confined pipe to investigate the effects of obstacle location and gasoline vapor concentration on gasoline-air fuel explosions. The variations of internal overpressure, external overpressure, flame propagation and flame-overpressure coupling relationship were analyzed. The results showed that the internal overpressure histories existed three obvious peaks, and when the obstacle location was set at 0.4 m, the maximum absolute values of overpressure (pmax and pneg), overpressure rise rates ((dp/dt)ave and (dp/dt)max) and the deflagration index (KG) were obtained. Additionally, more than two positive overpressure peaks were observed in the external overpressure histories. The maximum values of external overpressures and overpressure rise rates were obtained at the obstacle location of 0.4 m. For the fuel concentrations of 1.3%, 1.7% and 2.1%, the shortest time to reach pmax appeared at the obstacle location of 0.4 m, 0.2 m and 0.6 m, respectively, while the shortest time to reach (dp/dt)max and the maximum flame propagation speed were obtained for all the fuel concentrations at the obstacle location of 0.2 m. Moreover, a coupling relationship between overpressure and flame propagation was found. It could be deduced that the formation of the positive overpressure peak of the external overpressure might be directly related to the gas explosion inside the pipe and the flow jet caused by the high-speed flame propagation, rather than the external explosion (or secondary explosion) out of the pipe. These results improve our understanding on gas explosion dynamics in a semi-confined space.

Prediction of Uncontrolled Refueling Emissions from Gasoline Vehicles Based on Mathematical Models

The prediction of the uncontrolled refueling vapor generation of gasoline vehicles is the basis of the refueling emission control. It is of great significance to understand the mechanism of the gasoline vapor generation during the refueling process and to develop the refueling emission control devices. In this paper, the prediction of the refueling vapor generation of gasoline vehicles under uncontrolled conditions was conducted by using the empirical models, the steady state model and the time-varying diffusion model, respectively, and the prediction results were verified with the test results. The research results showed that the time-varying diffusion model had better adaptability and prediction accuracy than the empirical model. And the more influencing factors can be considered. But the verification and correction for this model were also needed by using experimental data. The empirical models had better prediction accuracy under specific conditions. However, due to the limitations of experimental conditions, the models lacked universality, which was an inherent defect of the empirical models. The steady-state model ignored the non-uniformity of fuel vapor concentration distribution in the fuel tank, resulting in a large error in the prediction results.

Screen Print Fabricated In3+ Decorated Perovskite Lanthanum Chromium Oxide (LaCrO3) Thick Film Sensors for Selective Detection of Volatile Petrol Vapors

The present work deals with the fabrication of undoped lanthanum chromium oxide and indium doped lanthanum chromium oxide material by cost effective sol–gel method. The four sensors were fabricated by screen printing technique. The indium ion concentration was varied for LaCrO3 material from 0.1 M% to 0.7 M% to access the comparative gas sensing results. All the prepared materials were characterized by XRD, SEM, EDAX, TEM and IR to confirm their structural and chemical composition. The prepared sensors viz. 0.1 M% In3+ doped LaCrO3, 0.3 M% In3+ doped LaCrO3, 0.5 M% In3+ doped LaCrO3 and 0.7 M% In3+ doped LaCrO3 were investigated for gas sensing mechanism for selected gases such as petrol vapours, ethanol, ammonia, NO2, H2S and CO2 gases. The optimum response was recorded for tested gases for all the prepared sensors. The 0.3 M% In3+ doped LaCrO3 found to be exceptional for petrol vapour and highest response was recorded for petrol vapors for 0.3 M% In3+ doped LaCrO3 thick film sensor. All the indium doped are found to be good sensors for petrol vapours and moderate for other tested gases. The prime parameters for the sensors such as selectivity, response and recovery and reproducibility were recorded for the prepared sensor. The response and recovery was very rapid for 0.3 M% In3+ doped LaCrO3 sensor. The gas sensing mechanism for petrol vapours has been established for 0.3 M% In3+ doped LaCrO3 sensor via hole accumulation layer mechanism. The Schematic abstract exhibits the synthesis of In-doped LaCrO3 (0.1M%. 0.3M%, 0.5M% and 0.7M %) by the sol-gel manner. It also illustrates the characterization and optimal gas response to volatile petrol vapors among all the gases.

Pulmonary Function of Petrol filling Workers from West Bengal, India

Background: There are many petrol filling stations in an urban and semi-urban area of Hooghly District of West Bengal and a large number of attendants work in these stations. They are constantly exposed to petrol vapour as well as motor vehicle fuel which might lead to respiratory problems in workers.&#x0D; Objectives: To assess the pulmonary function of Petrol Filling Workers of West Bengal and to evaluate the effect of duration of exposure on those Parameters.&#x0D; Methods: This is a cross-sectional study design. Pulmonary function test was done among 52 Petrol filling workers and 20 office workers of college as well as students of those institutions of Hooghly district and nearby area of Kolkata by simple random sampling method. Pulmonary function parameters were assessed by digital expirograph (Spirovit SP1) and Wright’s Peak Flow Meter. A questionnaire was filled up by invigilator regarding years of exposure, respiratory abnormalities, smoking habit and any other diseases. All the study protocol was approved by the Human Ethical Committee of Raja Peary Mohan College and Serampore college&#x0D; Results:-From the above survey, it was observed that respiratory volume and capacities significantly(p&lt;0.05-0.001) decreased with an increase in years of exposure. Odds ratios of different respiratory diseases (OR ranges from 1.12-3.12) indicate the risk of developing a cough, phlegm, asthma, skin diseases among petrol filling workers.&#x0D; Conclusion:- Safe threshold level of benzene VOC exposed in Petrol station is needed to protect the health of workers. Besides periodic health check-up, use of protective gadgets, improvement of technology and control strategies to reduce air emission of benzene VOC is essential to protect the health of Petrol filling workers of West Bengal.

Tubular Necrosis, Acid-Base and Electrolyte Abnormalities Associated with Gasoline Vapour-induced Nephrotoxicity

Introduction: This study aimed to assess the effect of exposure to gasoline vapor (GV) on the histomorphology and biochemical markers of renal function in rats. Methods: Twenty-four mature Wistar Albino rats weighing 180–200 g were randomly divided into two groups (n = 12 per group). Animals in group 1 (G1) served as unexposed controls, while animals in group 2 (G2) were exposed to GV for 35 days. At the end of the exposure, the animals were sacrificed, and blood samples were collected for biochemical analysis while the kidneys were removed and processed for histopathological evaluation. Results: Serum biochemical markers of renal function in the exposed group differed significantly (p&lt; 0.05) from the unexposed group in urea (45.16 ± 1.00mg/dl versus(vs) 13.20 ± 0.69 mg/dl), creatinine (1.16 ± 0.27mg/dl vs 0.38 ± 0.10mg/dl), uric acid (3.66 ± 0.82mmol/L vs 1.96 ± 0.08mmol/L), potassium (6.90 ± 0.27mmol/L vs 3.57 ± 0.26mmol/L), sodium (182.60 ± 3.21mmol/L vs 141.33 ± 10.46mmol/L), chloride (119.00 ± 1.58mmol/L vs 103.33 ± 2.07mmol/L), pH (6.82 ± 0.22 vs 7.38 ± 0.25), bicarbonate (16.60 ± 5.03mmol/L vs 26.50 ± 3.45mmol/L), and glucose (125.60 ± 16.23mg/ dl vs 83.33 ± 4.46mg/dl). Histopathological examination of kidney sections revealed areas of degenerative and necrotic changes in the glomerulus, tubules, and renal vasculature, particularly in the cortical portion of the kidney. Conclusion: Chronic exposure to gasoline compounds may be associated with significant structural and biochemical derangements in kidney function.