Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Study on the BTEX Ratio and Correlation of C2-benzenes in Vehicle Exhaust

자동차 배출가스 중 BTEX의 비율과 C2-benzenes의 상관성 연구

  • Received : 2018.10.02
  • Accepted : 2018.11.17
  • Published : 2018.12.30
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Abstract

Benzene, toluene, ethylbenzene and xylene (BTEX) were well known as ozone precursors from photochemical reactions and contribute to the formation of photochemical smog which pose health hazards. Also, some of these compounds directly affect the human health due to their toxicity such as benzene. In this study, BTEX ratios and correlation of $C_2$-benzenes (xylenes, ethylbenzene) in vehicle exhaust from recreational vehicle (RV) and multi-purpose vehicle (MPV) were characterized using a chassis dynamometer. VOCs were collected by tedlar bag and a GC/MS system was used for their quantification. Among all of the BTEX, toluene has the highest concentration(more than 30% in composition of BTEX). The average ratio of toluene to benzene emissions (T/B ratio=2.2) was found in vehicle exhaust. The average m,p-xylene/ethylbenzene and m,p-xylene/o-xylene ratios were 1.0 and 3.0 respectively. As a result, it showed a good correlation between the $C_2$-benzenes ($R^2=0.98{\sim}0.99$). In the future, it can be used as a marker for effect evaluation to atmospheric environment by vehicle exhaust.

Keywords

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Fig. 1 The driving patterns on NIER modes

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Fig. 2 Schematic diagram on vehicle emission test process

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Fig. 3 Comparison of the BTEX distribution at different sources

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Fig. 4 Correlation between m,p-xylene and o-xylene

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Fig. 5 Correlation between m,p-xylene and ethylbenzene

Table 1 Specifications of the tested vehicles

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Table 2 Specifications of driving mode

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Table 3 Analysis conditions of TD and GC/MS

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Table 4 Emission of the BTEX

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Table 5 Correlations between BTEX compounds

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References

  1. NIER, "National air pollutants emission service", 2014.
  2. Tran Thi Ngoc Lan, Pham Anh Minh, "BTEX pollution caused by motorcycles in the megacity of HoChiMinh", Journal of Environmental Sciences, Vol. 25, No. 2, 2013, pp. 348-356. https://doi.org/10.1016/S1001-0742(12)60045-X
  3. Yacine Kerchich and Rabah Kerbachi, "Measurement of BTEX (benzene, toluene, ethybenzene, and xylene) levels at urban and semirural areas of Algiers City using passive air samplers", Journal of the Air & Waste Management Association, Vol. 62, No. 12, 2012, pp. 1370-1379. https://doi.org/10.1080/10962247.2012.712606
  4. Mahmoud F. Mohamed, Daiwen Kang, Viney P. Aneja, "Volatile organic compounds in some urban locations in United States", Chemosphere, Vol. 47, 2002, pp. 863-882. https://doi.org/10.1016/S0045-6535(02)00107-8
  5. Elizabeth Vega, Violeta Mugica, RocmHo Carmona, Edgar Valencia, "Hydrocarbon source apportionment in mexico city using the chemical mass balance receptor model", Atmospheric Environment, Vol. 34, 2000, pp. 4121-4129. https://doi.org/10.1016/S1352-2310(99)00496-3
  6. Changjie Cai, Fuhai Geng, Xuexi Tie, Qiong Yu, Junlin An, "Characteristics and source apportionment of VOCs measured in Shanghai, China", Atmospheric Environment, Vol. 44, 2007. pp. 5005-5014.
  7. Anne Monod, Barkley C. Sive, Pasquale Avino, Tai Chen, Donald R. Blake, F. Sherwood Rowland, "Monoaromatic compounds in ambient air of various cities: a focus on correlations between the xylenes and ethylbenzene", Atmospheric Environment, Vol. 35, 2001, pp. 135-149. https://doi.org/10.1016/S1352-2310(00)00274-0
  8. Je Seung Lee, Yu Ri Choi, Hyun Soo Kim, Soo Mi Eo and Min Young Kim, "Characteristics of hazardous volatile organic compounds (HVOCs) at roadside, tunnel and residential area in seoul, korea", Journal of Korean Society for Atmospheric Environment, Vol. 27, 2011, pp. 558-568. https://doi.org/10.5572/KOSAE.2011.27.5.558
  9. P. F. NELSON and S. M. QUIGLEY, "The hydrocarbon composition of exhaust emitted from gasoline fuelled vehicles", Atmospheric Environment, Vol. 18, 1984. pp. 79-87. https://doi.org/10.1016/0004-6981(84)90230-0
  10. NIER, "A Study on the estimation of the HAPs emission factors for the mobile source (II)", 2005.
  11. EPA, "Compendium of methods for the determination of toxic organic compounds in ambient air", EPA/625/ R-96/010b, 1999.
  12. Heung-Min Yoo, JiHwan Son, Gyu-Tae Park, SunHee Mun, ChangWan Yun, JeongSoo Kim, and JongTae Lee, "Evaluation on Emission Characteristics of Trace Hazardous Material from Motorcycle Exhaust by EURO III", Journal of Ilass-korea, Vol. 20, No. 4, 2015.
  13. Chu-Chin Hsieh, Jiun-Horng Tsai, "VOC concentration characteristics in Southern Taiwan", Chemosphere, Vol. 50, 2003. pp. 545-556. https://doi.org/10.1016/S0045-6535(02)00275-8
  14. Calvert, J. G., Atkinson, R., Becker, K.H., Kamens, R. M., Seinfeld, J. H., Wallington, T. J., Yarwood, G., "The mechanisms of atmospheric oxidation of aromatic hydrocarbons", Oxford University Press, New York, 2000.
  15. M. A. Alghamdi, M. Khoder, A. S. Abdelmaksoud, R. M. Harrison, T. Hussein, H. Lihavainen, H. Al-Jeelani, M. H. Goknil, I. I. Shabbaj, F. M. Almehmadi, A.-P. Hyvarinen, K. Hameri, "Seasonal and diurnal variations of BTEX and their potential for ozone formation in the urban background atmosphere of the coastal city Jeddah, Saudi Arabia", Air Qual Atmos Health, Vol. 7, 2014. pp. 467-480. https://doi.org/10.1007/s11869-014-0263-x
  16. Julia Griselda Ceron Breton, Rosa Maria Ceron Breton, Francisco Vivas Ucan, Cynthia Barcelo Baeza, Maria de la Luz Espinosa Fuentes, Evangelina Ramirez Lara, Marcela Rangel Marr, Jorge Alfredo Montero Pacheco, Abril Rodriguez Guzman and Martha Patricia Uc Chi, "Characterization and sources of aromatic hydrocarbons (BTEX) in the atmosphere of two urban sites located in yucatan peninsula in mexico", Atmosphere, Vol. 8, 107, 2017. https://doi.org/10.3390/atmos8060107
  17. Sweet, C. W. and S. J. Vertmette, "Toxic volatile organic compounds in urban air in Illinois", Environmental Science and Technology, Vol. 26, No. 1, 1992, pp. 165-173. https://doi.org/10.1021/es00025a020
  18. Scheff, P. A. and R. A. Wadden, "Receptor modelling of volatile organic compounds. 1. emission inventory and validation", Environmental Science and Technology, Vol. 27, No. 4, 1993, pp. 617-625. https://doi.org/10.1021/es00041a005
  19. Mi-Hyun kim, San-Gon Park, Sung-Ok Baek, "Characteristics of atmospheric concentration of volatile organic compounds at a heavy-traffic site in a large urban area", J. Kosae, Vol. 18, 2002, pp. 113-126.
  20. M. I. Khoder, "Ambient levels of volatile organic compounds in the atmosphere of Greater Cairo", Atmospheric Environment, Vol. 41, 2007, pp. 554-566. https://doi.org/10.1016/j.atmosenv.2006.08.051
  21. Hongli Wang, Shengrong Lou, Cheng Huang, Liping Qiao, Xibin Tang, Changhong Chen, Limin Zeng, Qian Wang, Min Zhou, Sihua Lu, Xuena Yu, "Source profiles of volatile organic compounds from biomass burning in yangtze river delta, china", Aerosol and Air Quality Research, Vol. 14, 2014, pp. 818-828. https://doi.org/10.4209/aaqr.2013.05.0174
  22. Kwangsam Na, Kil-Choo Moon, Yong Pyo Kim, "Source contribution to aromatic VOC concentration and ozone formation potential in the atmosphere of Seoul", Atmospheric Environment, Vol. 39, 2005. pp. 5517-5524. https://doi.org/10.1016/j.atmosenv.2005.06.005
  23. Ramirez-lara, E., Fernandez-delgadillo, S., Ceron-breton J. G., Ceron-breton, R. M., Guevara-carrio, E., Alderetechavez, A., Carballo-pat, C. G., Anguebes-franseschi, F., Peva-pamplona, Inry, Ortinez-alvarez, J. A., Andlopezchuken, U., "Levels of aromatic hydrocarbons in the atmosphere of one urban site located at the northeast of Mexico during winter 2013", Environment and Development, ISBN: 978-960-474-375-9.
  24. Wanna Laowagul, Hathairatana Garivait, Wongpun Limpaseni and Kunio Yoshizumi, "Ambient air concentrations of benzene, toluene, ethylbenzene and xylene in bangkok, thailand during april-august in 2007", Atmospheric Environment, Vol. 2-1, 2008. pp. 14-25. https://doi.org/10.5572/ajae.2008.2.1.014
  25. Wanna Laowagul, Kunio Yoshizumi, "Characterization of benzene, toluene, ethylbenzene, and xylene concentrations in the ambient atmosphere of tokyo, japan", Seikatsu Eisei, Vol. 52, 2008, pp. 290-299.