Laboratory Studies on the Aqueous Phase Reactivity of Molecular Markers

该项目在该小组以前关于大气化学或有机气溶胶的工作的基础上，通过研究在气溶胶中发现的一系列有机化合物的稳定性和大气寿命，并作为示踪剂使用。 研究人员将设计、建造和使用一个实验室系统，用于测试有机示踪剂化合物的水相反应性，并测试各种候选化合物的反应机理和产物，以便通过一系列关于自然大气气溶胶的实验室实验，评估它们作为区域和天气尺度大气输送的保守示踪剂的相对效用（例如云、雾和霾）以及环境气溶胶和试剂有机化合物的合成但代表性的混合物。 结果将有重要的更广泛的影响环境受体网站数据的解释，以及了解这些化合物的远距离传输对辐射传输和气候变化的贡献。 该项目包括通过东道机构现有的实验室课程将研究和教育结合起来的内容，通过研究生支助和基于网络的社区外联促进青年科学家的专业培训。

This project extends upon previous work by this group on the atmospheric chemistry or organic aerosols by examining the stability and atmospheric lifetimes of a series of organic compounds found in aerosols and as such commonly used as tracers. The investigators will design, construct and employ a laboratory system for testing aqueous phase reactivity of organic tracer compounds and test a variety of candidate compounds in terms of reaction mechanisms and products in order to evaluate their relative utility as conserved tracers of regional and synoptic scale atmospheric transport through a series of laboratory experiments on natural atmospheric aerosols (such as cloud, fog, and haze) and synthetic yet representative mixtures of ambient aerosol and reagent organic compounds. Results will have important broader impacts for the interpretation of ambient receptor site data, as well as understanding the contribution of long-range transport of these compounds on radiative transfer and climate change. The project includes elements integrating study research and education through existing laboratory classes at the host institution, contributing to professional training of young scientists through graduate student support, and web-based community outreach.