Sensitivity Analysis of Hazardous Air Pollutants Emission from Passenger Cars to Traffic, Geographic and Environmental Parameters (Case Study: Tehran)
Document Type : Original Article
Authors
1 M.S. Grad., School of Environment, College of Engineering, University of Tehran, Tehran, Iran.
2 Assistant Professor, School of Environment, College of Engineering, University of Tehran, Tehran, Iran.
3 Associate Professor, School of Environment, College of Engineering, University of Tehran, Tehran, Iran.
4 Ministry of Roads and Urban Development, Transportation Research Institute, Tehran, Iran
Abstract
This study was conducted to determine the effects of various traffic, geographic, and environmental parameters on the vehicular emissions of HAPs (Hazardous Air Pollutants). In this case study, an arithmetic sequence was defined in the range of inputs to enter discrete independent variables into the IVE (International Vehicle Emissions) model. After simulating the results by the IVE model, a linear regression model was used to determine the sensitivity of the exhaust pipe HAPs emissions to the input parameters. The findings of the present study indicated that the passenger car fleet age is the most effective parameter on the emissions of 1,3-Butadiene, Acetaldehyde, and Formaldehyde with R2 (Coefficient of Determination) of 0.71, 0.68, and 0.66. In addition, this analytical study proved that the most important and effective parameters in increasing the emissions of Ammonia and Benzene are road gradient and the amount of benzene in the fuel with R2 of 0.90 and 1.00, respectively. According to the present research findings, by analyzing the changes in the emission rate of pollutants under the influence of different values of traffic, geographic, and environmental parameters, the optimum values of each of these parameters can be evaluated to minimize the vehicular emission rate. In conclusion, renovating the fleet of passenger cars, improving fuel quality, and building roads with a gentle slope should be considered as the solutions to reduce the emissions of HAPs in Tehran.
Keywords
-Agarwal, A. K., & Mustafi, N. N., (2021), "Real-world automotive emissions: Monitoring methodologies, and control measures", Renewable and Sustainable Energy Reviews, 137, 110624.
-Baek, K.-M., Seo, Y.-K., Kim, J.-Y., Baek, S.-O., Baek, K.-M., Seo, Y.-K., Kim, J. Y., et al., (2019), "Monitoring of particulate hazardous air pollutants and affecting factors in the largest industrial area in South Korea: The Sihwa-Banwol complex. Environmental Engineering Research", 25(6), pp.908-923.
-Banitalebi, E., & Hosseini, V., (2015), "Development of hot exhaust emission factors for Iranian-made euro-2 certified light-duty vehicles", Environmental Science & Technology, 50(1), pp.279-284.
-Bolden, A. L., Kwiatkowski, C. F., & Colborn, T., (2015), "New look at BTEX: are ambient levels a problem"? Environmental Science & Technology, 49(9), pp.5261-5276.
-Deputy of Transport and Traffic of Tehran, (2019), "Tehran Traffic Statistics Handbook".
-Iran Meteorological Organization, (2020), "Specialized products and services weather", Retrieved from https://www.irimo.ir/eng/wd/720-Products-Services.html.
-ISSRC., (2008), "International Sustainable Systems Research Center", IVE Model User Manual, Version 2.0.
-Koupal, J., & Palacios, C., (2019), "Impact of new fuel specifications on vehicle emissions in Mexico", Atmospheric Environment, 201, pp.41-49.
-Lyu, P., Wang, P. S., Liu, Y., & Wang, Y., (2021), "Review of the studies on emission evaluation approaches for operating vehicles", Journal of Traffic and Transportation Engineering (English Edition), 8(4), pp.493-509.
-Miller, L., Xu, X., Grgicak-Mannion, A., Brook, J., & Wheeler, A., (2012), "Multi-season, multi-year concentrations and correlations amongst the BTEX group of VOCs in an urbanized industrial city", Atmospheric Environment, 61, pp.305-315.
-Miri, M., Shendi, M. R. A., Ghaffari, H. R., Aval, H. E., Ahmadi, E., Taban, E., Gholizadeh, A., et al., (2016), "Investigation of outdoor BTEX: Concentration, variations, sources, spatial distribution, and risk assessment", Chemosphere, 163.
-Mogro, A., & Huertas, J., (2021), "Assessment of the effect of using air conditioning on the vehicle's real fuel consumption", International Journal on Interactive Design and Manufacturing (IJIDeM).
-Pianosi, F., Beven, K., Freer, J., Hall, J. W., Rougier, J., Stephenson, D. B., & Wagener, T., (2016), "Sensitivity analysis of environmental models: A systematic review with practical workflow", Environmental Modelling & Software, 79, pp.214-232.
-Rahman, S. A., Fattah, I. R., Ong, H. C., Ashik, F. R., Hassan, M. M., Murshed, M. T., Imran, M. A., et al., (2021), "State-of-the-Art of Establishing Test Procedures for Real Driving Gaseous Emissions from Light-and Heavy-Duty Vehicles, Energies", 14(14), 4195.
-Rashidi, Y., & Atabi, F., (2019), "Verification of IVE Model for SAIPA Co. Fleet Emission".
-Shafie-Pour, M., & Tavakoli, A., (2013), "On-road vehicle emissions forecast using
IVE simulation model", International Journal of Environmental Research, 7(2),
pp.367-376.
pp.367-376.
-Tehran Air Quality Control Company, (2021), "analysis of gasoline of Tehran's filling stations", Retrieved from https://air.tehran.ir/Default.aspx?tabid=957.
-U.S. Environmental Protection Agency, (2022), "Hazardous Air Pollutants", Retrieved from https://www.epa.gov/haps.
-Vashisht, S., & Rakshit, D., (2021), "Recent advances and sustainable solutions in automobile air conditioning systems", Journal of cleaner production, 329, 129754.
-Zhang, Q., Fan, J., Yang, W., Ying, F., Bao, Z., Sheng, Y., Lin, C., et al., (2018), "Influences of accumulated mileage and technological changes on emissions of regulated pollutants from gasoline passenger vehicles", Journal of Environmental Sciences, 71, pp. 197-206.
Sensitivity Analysis of Hazardous Air Pollutants Emission from Passenger Cars to Traffic, Geographic and Environmental Parameters