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: 1638672
• 负责人: Jesse Kroll
• 金额: $ 54.2万
• 依托单位: Massachusetts Institute of Technology
• 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 2021-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1638672&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。 正在进行的研究旨在调查有机化合物的关键特性在经历多代大气老化时如何变化。 这项工作将为了解物种间碳的分布以及大气中有机气溶胶的形成提供重要的见解。 这项研究将有助于改进当前的空气质量和气候变化模型。该项目的具体科学目标如下：（1）开发实验室方法和能力，使用一系列化学方法表征实验室老化环境中的所有碳。特定技术和集成技术； (2) 将这些方法应用于关键的大气老化系统，以跟踪气相和颗粒相中有机碳的演化。 大气有机物质表征的最新进展，包括传统上难以测量的物质，如多功能氧化挥发性有机化合物（OVOC）和半挥发性和中等挥发性有机化合物（S/IVOC），使得碳封闭研究能够在大气中进行。实验室第一次。

项目成果

Application of chemical derivatization techniques combined with chemical ionization mass spectrometry to detect stabilized Criegee intermediates and peroxy radicals in the gas phase

应用化学衍生技术结合化学电离质谱检测气相中稳定的 Criegee 中间体和过氧自由基

• DOI: 10.5194/amt-14-2501-2021
• 发表时间: 2020-09-30
• 期刊: Atmospheric Measurement Techniques
• 影响因子: 3.8
• 作者: Ale;er Zaytsev;er;M. Breitenlechner;A. Novelli;H. Fuchs;D. Knopf;J. Kroll;F. Keutsch
• 通讯作者: F. Keutsch

The fuel of atmospheric chemistry: Toward a complete description of reactive organic carbon

大气化学的燃料：活性有机碳的完整描述

• DOI: 10.1126/sciadv.aay8967
• 发表时间: 2020-02-01
• 期刊: Science Advances
• 影响因子: 13.6
• 作者: C. Heald;J. Kroll
• 通讯作者: J. Kroll

Using collision-induced dissociation to constrain sensitivity of ammonia chemical ionization mass spectrometry (NH4+ CIMS) to oxygenated volatile organic compounds

利用碰撞诱导解离限制氨化学电离质谱 (NH₄ CIMS) 对含氧挥发性有机化合物的灵敏度

• DOI: 10.5194/amt-12-1861-2019
• 发表时间: 2019-01
• 期刊: Atmospheric Measurement Techniques
• 影响因子: 3.8
• 作者: Zaytsev, Alexander;Breitenlechner, Martin;Koss, Abigail R.;Lim, Christopher Y.;Rowe, James C.;Kroll, Jesse H.;Keutsch, Frank N.
• 通讯作者: Keutsch, Frank N.

A biogenic secondary organic aerosol source of cirrus ice nucleating particles

卷云冰成核颗粒的生物二次有机气溶胶源

• DOI: 10.1038/s41467-020-18424-6
• 发表时间: 2020-10-01
• 期刊: Nature Communications
• 影响因子: 16.6
• 作者: Wolf MJ;Zhang Y;Zawadowicz MA;Goodell M;Froyd K;Freney E;Sellegri K;Rösch M;Cui T;Winter M;Lacher L;Axisa D;DeMott PJ;Levin EJT;Gute E;Abbatt J;Koss A;Kroll JH;Surratt JD;Cziczo DJ
• 通讯作者: Cziczo DJ

Mechanistic study of the formation of ring-retaining and ring-opening products from the oxidation of aromatic compounds under urban atmospheric conditions

城市大气条件下芳香族化合物氧化形成保环和开环产物的机理研究

• DOI: 10.5194/acp-19-15117-2019
• 发表时间: 2019-01
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: Zaytsev, Alexander;Koss, Abigail R.;Breitenlechner, Martin;Krechmer, Jordan E.;Nihill, Kevin J.;Lim, Christopher Y.;Rowe, James C.;Cox, Joshua L.;Moss, Joshua;Roscioli, Joseph R.;et al
• 通讯作者: et al