Correlation of fuel quality and emissions of motor vehicle with atmospheric pollution in Beijing

doi:10.7523/j.issn.2095-6134.2017.03.005

Abstract

Abstract: In order to clarify the real origin of the atmospheric pollution in Beijing， the correlation of fuel quality and emission of motor vehicle with atmospheric pollution in Beijing was studied in this work.The qualities of various major brands of fuel were analyzed by using the methods of instrumental analysis such as GC-MS. A new idea that the average daily change of the contaminant in unit volume is considered as reference standard in calculation of the contribution rates of various pollutants below the inversion layer in static stability weather is set up. Firstly， the average daily emissions of the main pollutants including CO，HC，NO₂, and SO₂ in unit volume were studied.Next the real measured daily variation of the pollutants in unit volume from November 2013 to October 2015 was studied.Then the contribution rates of the various pollutants by the vehicle exhausting to the respective atmospheric pollutants were calculated.The results are showed as follows. 1) The heavy metal contents， sulfur content, and aromatic hydrocarbon contents exceeded the limits. The nitrogen content was high, but there is no limit in international standard. 2) In heating season，the contribution rates of CO， NO₂, and SO₂ by the vehicle exhausting to the corresponding atmospheric pollutants were 30.1%， 72.4%, and 6.6%, respectively, and in no-heating season，the contribution rates were 53.3%，74.3%, and 20.3%, respectively. The annual average sharing percentage of the motor vehicle HC emission was about 67.8%. Based on the results of this study，fuel combustion is the major cause of air pollution in Beijing， and several specific advices and measures for effectively controlling the atmospheric pollution in Beijing are put forward.

Key words: atmospheric pollution, fuel quality, motor vehicle exhaust, PM_2.5, quantitative simulation

CLC Number:

X734.2

YANG Kunhao, XIA Zanyu, HE Peng, WU Li, GONG Lingling, QIAN Yueying, HOU Yanlin, HE Yujian. Correlation of fuel quality and emissions of motor vehicle with atmospheric pollution in Beijing[J]. , 2017, 34(3): 304-317.

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