Collaborative Research: Comprehensive Characterization of Atmospheric Organic Carbon over Multiple Generations of Oxidation

合作研究：多代氧化过程中大气有机碳的综合表征

• 批准号: 1638543
• 负责人: Manjula Canagaratna
• 金额: $ 22.48万
• 依托单位: Aerodyne Research Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1638543&HistoricalAwards=false
• 关键词: Collaborative; Research; Comprehensive; Characterization; Atmospheric

This project supports laboratory studies of the chemical evolution of organic carbon in the atmosphere. Research is ongoing to investigate how key properties of organic compounds change as they undergo multiple generations of atmospheric aging. This effort will provide significant insight into the distribution of carbon across species and into the formation of organic aerosol in the atmosphere. This research will help improve current models of air quality and climate change.The specific scientific objectives of this project are as follows: (1) The development of laboratory approaches and capabilities for chemically characterizing all carbon within a laboratory aging context, using a range of speciated and ensemble techniques; and (2) Application of these approaches to key atmospheric aging systems in order to track the evolution of organic carbon within both the gas and particle phases. Recent advances in the characterization of atmospheric organic species, including traditionally difficult-to-measure species such as multifunctional oxidized VOCs (OVOCs) and semivolatile and intermediate-volatility organic compounds (S/IVOCs), enable carbon closure studies to be carried out in the laboratory for the first time.

该项目支持大气中有机碳化学演化的实验室研究。 正在进行研究以研究有机化合物的关键特性如何随着多代大气衰老而发生的变化。 这项工作将为碳在物种跨物种的分布以及大气中有机气溶胶的形成提供深入的见解。 这项研究将有助于改善当前空气质量和气候变化的模型。该项目的具体科学目标如下：（1）使用一系列指定和安装技术的实验室衰老环境中实验室方法和能力的发展，以化学化化学作用。 （2）将这些方法应用于关键的大气老化系统，以跟踪气体和颗粒相内有机碳的演变。 大气有机物种表征的最新进展，包括传统上难以衡量的物种，例如多功能氧化VOC（OVOC），半脱脂和中间丙旋式有机化合物（S/IVOC），促进第一次在实验室中进行碳封闭研究。