@article { ISI:000332994600037,
	title = {Rapid organic aerosol formation downwind of a highway: Measured and model results from the FEVER study},
	journal = {JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES},
	volume = {119},
	number = {3},
	year = {2014},
	month = {FEB 16},
	pages = {1663-1679},
	abstract = {The Fast Evolution of Vehicle Emissions from Roadway (FEVER) study was undertaken to strategically measure pollutant gradients perpendicular to a major highway north of Toronto, Canada. A case study period was analyzed when there was an average perpendicular wind direction. Two independent, fast response measurements were used to infer rapid organic aerosol (OA) growth on a spatial scale from 34 m to 285 m at the same time as a decrease was observed in the mixing ratio of primary emitted species, such as CO2 and NOx. An integrated organic gas and particle sampler also showed that near the highway, the aerosol had a larger semivolatile fraction than lower volatile fraction, but over a relatively short distance downwind of the highway, the aerosol transformed to being more low volatile with the change being driven by both evaporation of semivolatile and production of lower volatile organic aerosol. A new 1-D column Lagrangian atmospheric chemistry model was developed to help interpret the measured increase in the OA/CO2 curve from 34 m to 285 m downwind of highway, where the refers to background-corrected concentrations. The model was sensitive to the assumptions for semivolatile organic compounds (SVOCs). Different combinations of SVOC emissions and background mixing ratios were able to yield similar model curves and reproduce the observations. Future measurements of total gas-phase SVOC in equilibrium with aerosol both upwind and downwind of the highway would be helpful to constrain the model.},
	issn = {2169-897X},
	doi = {10.1002/2013JD020223},
	author = {Stroud, Craig A. and Liggio, John and Zhang, Jie and Gordon, Mark and Staebler, Ralf M. and Makar, Paul A. and Zhang, Junhua and Li, Shao-Meng and Mihele, Cristian and Lu, Gang and Wang, Daniel K. and Wentzell, Jeremy and Brook, Jeffrey R. and Evans, Greg J.}
}
