Articles | Volume 17, issue 22
https://doi.org/10.5194/acp-17-14119-2017
https://doi.org/10.5194/acp-17-14119-2017
Research article
 | 
28 Nov 2017
Research article |  | 28 Nov 2017

Long-path measurements of pollutants and micrometeorology over Highway 401 in Toronto

Yuan You, Ralf M. Staebler, Samar G. Moussa, Yushan Su, Tony Munoz, Craig Stroud, Junhua Zhang, and Michael D. Moran

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Cited articles

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A novel approach for traffic emission measurements is shown to have the capacity to provide high-time-resolution accurate concentrations of key air pollutants. A top-down method for quantifying real-world emission rates produced vehicular emission factor estimates for carbon monoxide that agreed well with bottom-up values. Significant ammonia and hydrogen cyanide emissions were observed. The main factors modulating the concentrations were turbulent mixing and traffic density.
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