« Previous AbstractMorphological and Ultrastructural Characterization of Antennal Sensilla and the Detection of Floral Scent Volatiles in Eupeodes corollae (Diptera: Syrphidae)    Next AbstractModeling cold soak evaporative vapor emissions from gasoline-powered automobiles using a newly developed method »

Environ Pollut

Title:		Estimating evaporative vapor generation from automobiles based on parking activities
Author(s):		Dong X; Tschantz M; Fu JS;
Address:		"Department of Civil and Environmental Engineering, The University of Tennessee, Knoxville, TN, USA. Specialty Chemicals Division, MeadWestvaco Corporation, Charleston, SC, USA. Electronic address: michael.tschantz@mwv.com. Department of Civil and Environmental Engineering, The University of Tennessee, Knoxville, TN, USA. Electronic address: jsfu@utk.edu"
Journal Title:		Environ Pollut
Year:		2015
Volume:		20150325
Issue:
Page Number:		104 - 111
DOI:		10.1016/j.envpol.2015.03.010
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"A new approach is proposed to quantify the evaporative vapor generation based on real parking activity data. As compared to the existing methods, two improvements are applied in this new approach to reduce the uncertainties: First, evaporative vapor generation from diurnal parking events is usually calculated based on estimated average parking duration for the whole fleet, while in this study, vapor generation rate is calculated based on parking activities distribution. Second, rather than using the daily temperature gradient, this study uses hourly temperature observations to derive the hourly incremental vapor generation rates. The parking distribution and hourly incremental vapor generation rates are then adopted with Wade-Reddy's equation to estimate the weighted average evaporative generation. We find that hourly incremental rates can better describe the temporal variations of vapor generation, and the weighted vapor generation rate is 5-8% less than calculation without considering parking activity"
Keywords:		"Air Pollutants/*analysis Automobile Driving *Automobiles Environmental Monitoring/*methods Italy Models, Theoretical Temperature Vehicle Emissions/*analysis Volatile Organic Compounds/*analysis Volatilization Emission rate Evaporative vapor generation Par;"
Notes:		"MedlineDong, Xinyi Tschantz, Michael Fu, Joshua S eng Research Support, Non-U.S. Gov't England 2015/03/31 Environ Pollut. 2015 Jul; 202:104-11. doi: 10.1016/j.envpol.2015.03.010. Epub 2015 Mar 25"