Articles | Volume 18, issue 23
Atmos. Chem. Phys., 18, 16979–17001, 2018
https://doi.org/10.5194/acp-18-16979-2018
Atmos. Chem. Phys., 18, 16979–17001, 2018
https://doi.org/10.5194/acp-18-16979-2018

Research article 30 Nov 2018

Research article | 30 Nov 2018

Elucidating real-world vehicle emission factors from mobile measurements over a large metropolitan region: a focus on isocyanic acid, hydrogen cyanide, and black carbon

Sumi N. Wren et al.

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Cited articles

Air Pollutants Emission Inventory: Air Pollutants Emission Inventory online search, available at: https://pollution-waste.canada.ca/air-emission-inventory (last access: 18 April 2018), 2015. 
Akagi, S. K., Yokelson, R. J., Wiedinmyer, C., Alvarado, M. J., Reid, J. S., Karl, T., Crounse, J. D., and Wennberg, P. O.: Emission factors for open and domestic biomass burning for use in atmospheric models, Atmos. Chem. Phys., 11, 4039–4072, https://doi.org/10.5194/acp-11-4039-2011, 2011. 
Ambrose, J. L., Haase, K., Russo, R. S., Zhou, Y., White, M. L., Frinak, E. K., Jordan, C., Mayne, H. R., Talbot, R., and Sive, B. C.: A comparison of GC-FID and PTR-MS toluene measurements in ambient air under conditions of enhanced monoterpene loading, Atmos. Meas. Tech., 3, 959–980, https://doi.org/10.5194/amt-3-959-2010, 2010. 
Ambrose, J. L., Zhou, Y., Haase, K., Mayne, H. R., Talbot, R., and Sive, B. C.: A gas chromatographic instrument for measurement of hydrogen cyanide in the lower atmosphere, Atmos. Meas. Tech., 5, 1229–1240, https://doi.org/10.5194/amt-5-1229-2012, 2012. 
Araizaga, A. E., Mancilla, Y., and Mendoza, A.: Volatile organic compound emissions from light-duty vehicles in Monterrey, Mexico: a tunnel study, Int. J. Environ. Res., 7, 277–292, 2013. 
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We made measurements from a mobile laboratory across a large urban area and determined fleet-average vehicle emission factors (EFs) for a suite of traffic-related air pollutants. We present the first real-world EFs for isocyanic acid (HNCO) and hydrogen cyanide (HCN) and insight into their on-road variability. We find that vehicles may represent an important source of these air toxics at an urban scale. This work has implications for understanding population exposure to these species.
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