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Atmospheric Dispersion Study of Deicing Salt Applied to Roads: Part 2, Final Report for Period July 2002 to June 2004.
| 题名： | Atmospheric Dispersion Study of Deicing Salt Applied to Roads: Part 2, Final Report for Period July 2002 to June 2004. |
| 作者： | williams, a. stensland, g. |
| 关键词： | emission, sodium chloride, ice removal, snow removal, measuring instruments, deicers, sampling sites, monitoring |
| 摘要： | This report describes results from a project to characterize the atmospheric emission and deposition of deicing road salt composed mainly of sodium chloride (NaCl). The focus of the effort has been to determine the airborne concentrations and deposition of roadsalt aerosol due to the proposed construction of a roadway, FAP 340, which would join Interstate 55 (I-55) and Interstate 80 (I-80) southwest of Chicago. Five monitoring sites were established to characterize the road salt deposition. The report gives an overview of the sampling sites, presents data from the different instruments deployed at the sampling sites, and describes a model developed for the study to simulate salt deposition. The roadsalt model is the combination of an emissions model and a deposition model. The deposition parameterization is based on measurements following several snow events of salt collected in snow samples at different distances along I-55, which show the salt deposition to essentially vary inversely with the distance from the roadway. / NOTE:Final rept. |
| 总页数： | u0704；66p |
| 报告类型： | 科技报告 |
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