Collaborative Research: Submicron Organic Aerosol Measurements During ACE-Asia

合作研究：ACE-Asia 期间亚微米有机气溶胶测量

• 批准号: 0003936
• 负责人: Barbara Turpin
• 金额: $ 7.17万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0003936&HistoricalAwards=false
• 关键词: Collaborative; Research; Submicron; Organic; Aerosol

This collaborative research project with Lynn Russell, Princeton University, is an investigation of the role of organic species in atmospheric particles. Measurements of aerosol organics in east Asian outflow will be made from shipboard (NOAA R/V Brown) and aircraft (NCAR C-130), during the ACE-Asia field program. The measurements include: 1) semi-continuous elemental/organic carbon (EC/OC) analysis using a thermo-optical detection technique, and 2) time-integrated filter samples for analysis by Fourier Transform Infrared spectroscopy. The EC/OC measurements provide an important indicator for the role of combustion emissions in the air masses sampled. The FTIR organic analyses describe the mass of organic species and classify those species by functional group and solubility in solvents of different polarity. This provides information about the mass fraction of organic compounds that are water-soluble and contribute to enhanced water uptake by particles. The hydrophobic organic fraction that does not dissolve in the particulate aqueous phase will also be quantified.

这项与普林斯顿大学林恩罗素的合作研究项目是对大气颗粒物中有机物种作用的调查。 在ACE-亚洲现场计划期间，将从船上（NOAA R/V Brown）和飞机（NCAR C-130）测量东亚外流中的气溶胶有机物。 测量包括：1）使用热光检测技术的半连续元素/有机碳（EC/OC）分析，和2）用于通过傅里叶变换红外光谱分析的时间积分过滤样品。 EC/OC测量为燃烧排放物在采样空气质量中的作用提供了一个重要指标。 FTIR有机分析描述了有机物质的质量，并根据官能团和在不同极性溶剂中的溶解度对这些物质进行分类。 这提供了有关水溶性有机化合物质量分数的信息，并有助于增强颗粒的吸水性。 不溶于颗粒水相中的疏水有机部分也将被定量。