Transport and Fate Processes of Road Salt in Urban Areas

城市地区路盐的运输和归宿过程

• 批准号: 288138-2012
• 负责人: Gharabaghi, Bahram
• 金额: $ 1.53万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=525696
• 关键词: Transport; Fate; Processes; Road; Salt

The overarching goal of this research program is to better protect sustainable and safe drinking water sources and freshwater aquatic ecosystems in urban watersheds from the emerging threat of the 5 million tonnes of road salt that is applied annually in Canada for winter road maintenance. This research will advance scientific knowledge on the ice and snow melt processes (the thermal melt, rain-on-snow melt, and the salt-induced melt) and the chloride wash-off rate for various types of winter storms (dry snow, wet snow, freezing rain, or rain on snow) to more accurately calculate the chloride concentrations in both surface runoff as well as the groundwater recharge in urban watersheds. This research will assist in the development of novel, practical and feasible methods to minimize potential negative environmental effects of road salt application in urban watersheds. Specifically, this research will focus on improvement of the scientific methods of identification of the "salt vulnerable areas" and calculation of the contribution of the key sources to the sensitive receptors and

这项研究计划的总体目标是更好地保护城市分水岭的可持续和安全的饮用水水源和淡水水生生态系统，使其免受加拿大每年用于冬季道路维护的500万吨道路盐的新威胁。这项研究将促进对冰雪融化过程(热融化、雨雪融化和盐致融化)以及不同类型冬季风暴(干雪、湿雪、冻雨或雪上雨)的氯离子洗脱率的科学认识，以便更准确地计算城市流域地表径流和地下水补给中的氯离子浓度。这项研究将有助于开发新的、实用和可行的方法，以最大限度地减少城市流域道路盐的潜在负面环境影响。具体地说，这项研究将集中在改进科学的识别方法和计算关键来源对敏感受体和