Resolving Source Contributions to Atmospheric Deposition

解决大气沉积的来源贡献

• 批准号: 1705813
• 负责人: Kristina Wagstrom
• 金额: $ 30万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1705813&HistoricalAwards=false
• 关键词: Resolving; Source; Contributions; Atmospheric; Deposition

The primary objective of this research project is to improve understanding of how pollutants containing nitrogen deposit into water bodies from the atmosphere. This project directly benefits society by addressing water quality and ecosystem health concerns. These water quality concerns include low oxygen levels and acidic conditions that can result in loss of life in aquatic systems.  This research provides a beneficial tool for improving watershed management. The researchers are seeking to confirm that the emission source for these pollutants can be hundreds of miles away from the water body that is affected. This project supports the training of a Ph.D. student and also engages undergraduate chemical engineering students in research and community outreach activities. In addition, undergraduate students participate in undergraduate research experiences and service-learning projects through partnerships with Connecticut state parks and technical high schools. The project engages the community through monitoring activities that take place at several high schools and state parks.An atmospheric chemical transport model coupled with a watershed model will account for source-resolved pollutant transport across multiple components of the watershed system. The researchers are studying deposition estimates to different watersheds and regional linking with a watershed model over the Connecticut River Watershed. A goal of this research project is to transform watershed and ecosystem management by creating an essential source-resolved bridge between two interacting earth systems: the atmosphere and hydrosphere. This research represents a substantial step forward by providing a comprehensive evaluation of impacts to watersheds throughout the country and developing overarching estimates of the impacts of air pollution on soil and water quality. Results of this project provide societal benefits by addressing water quality and ecosystem health concerns. These water quality concerns include hypoxia which negatively impacts fisheries and acidification which can result in loss of life in aquatic systems. This research also provides a beneficial tool for improving watershed management plan development.

这项研究项目的主要目标是提高对含氮污染物如何从大气沉积到水体的了解。该项目通过解决水质和生态系统健康问题直接造福社会。这些水质问题包括低氧水平和可能导致水生系统生命损失的酸性条件。这项研究为改善流域管理提供了有益的工具。研究人员正在寻求确认，这些污染物的排放源可能距离受影响的水体数百英里。该项目支持一名博士生的培训，并让化学工程本科生参与研究和社区推广活动。此外，本科生通过与康涅狄格州州立公园和技工高中的合作，参与本科生的研究经历和服务学习项目。该项目通过在几所高中和州立公园开展的监测活动吸引了社区的参与。大气化学传输模型与流域模型相结合，将考虑到来源解析的污染物在流域系统的多个组成部分之间的传输。研究人员正在研究不同流域的沉积估计，并与康涅狄格河流域的流域模型建立区域联系。这一研究项目的一个目标是通过在大气和水圈这两个相互作用的地球系统之间建立一个基本的源分辨桥梁来改变流域和生态系统的管理。这项研究对全国各流域的影响进行了全面评估，并对空气污染对土壤和水质的影响进行了总体估计，这是向前迈出的实质性一步。该项目的成果解决了水质和生态系统健康问题，带来了社会效益。这些水质问题包括对渔业造成不利影响的缺氧和可能导致水生系统生命损失的酸化。本研究也为完善流域管理方案的制定提供了有益的工具。