Are emissions of black carbon from gasoline vehicles overestimated? Real-time, in situ measurement of black carbon emission factors

The Science of the Total Environment
Yang WangKe Du

Abstract

Accurately quantifying black carbon (BC) emission factors (EFs) is a prerequisite for estimation of BC emission inventory. BC EFs determined by measuring BC at the roadside or chasing a vehicle on-road may introduce large uncertainty for low emission vehicles. In this study, BC concentrations were measured inside the tailpipe of gasoline vehicles with different engine sizes under different driving modes to determine the respective EFs. BC EFs ranged from 0.005-7.14 mg/kg-fuel under the speeds of 20-70 km/h, 0.05-28.95 mg/kg-fuel under the accelerations of 0.5-1.5m/s(2). Although the water vapor in the sampling stream could result in an average of 12% negative bias, the BC EFs are significantly lower than the published results obtained with roadside or chasing vehicle measurement. It is suggested to conduct measurement at the tailpipe of gasoline vehicles instead of in the atmosphere behind the vehicles to reduce the uncertainty from fluctuation in ambient BC concentration.

References

Aug 16, 2000·Proceedings of the National Academy of Sciences of the United States of America·J HansenV Oinas
Sep 26, 2000·Journal of the Air & Waste Management Association·J A Gillies, A W Gertler
Oct 7, 2000·Lancet·S J London, I Romieu
Sep 25, 2002·Journal of the Air & Waste Management Association·Yifang ZhuConstantinos Sioutas
Sep 28, 2002·Science·Surabi MenonYunfeng Luo
Dec 6, 2005·Environmental Science & Technology·Michael D GellerConstantinos Sioutas
Feb 22, 2007·Environmental Science & Technology·L MorawskaK Mengersen
Nov 2, 2007·Journal of the Air & Waste Management Association·Aki VirkkulaIsmo K Koponen
Aug 6, 2011·Environmental Science & Technology·Martin WeissUrbano Manfredi
Nov 2, 2011·Environmental Science & Technology·Timothy R DallmannThomas W Kirchstetter
Feb 9, 2012·Environmental Science & Technology·John LiggioJeffrey R Brook
Oct 26, 2013·Environmental Science & Technology·Sara D ForestieriChristopher D Cappa

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Citations

May 25, 2016·The Science of the Total Environment·Xiaoyan HuangKe Du
Aug 17, 2016·The Science of the Total Environment·Yang WangKe Du
Mar 7, 2021·Environmental Pollution·Shaojun ZhangYe Wu
Jul 3, 2021·International Journal of Environmental Research and Public Health·Borut JerebMatevz Obrecht

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