Measurements of Amines during the Southern Oxidant and Aerosol Study (SOAS) Field Campaign

南方氧化剂和气溶胶研究 (SOAS) 现场活动期间的胺测量

• 批准号: 1241498
• 负责人: Shan-Hu Lee
• 金额: $ 33万
• 依托单位: Kent State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-04-01 至 2016-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1241498&HistoricalAwards=false
• 关键词: Measurements; Amines; during; Southern; Oxidant

This research is a component of a broad community experiment named SOAS (Southern Oxidant and Aerosol Study) designed to further investigate the oxidation of the emissions (biogenic volatile organic compounds; BVOCs) of plants in the context of the atmospheric environment of the Southeast United States. The project will investigate the effects of organic amines on secondary organic aerosol (SOA) formation processes. Amines, along with ammonia, are the dominant organic base compounds in the atmosphere. They are invariably present in aerosol particles, and may contribute to SOA formation through condensation of their oxidation products, or by the formation of salts with more acidic aerosol particles. Amines and their oxidation products may have adverse health effects and directly impact air quality, and visibility. At present, measurements of gas-phase amines, especially in biogenic environments in the southeastern United States, are lacking. This project will make ground-based measurements of amines with a fast-time response chemical ionization mass spectrometer (CIMS) during the 2013 SOAS campaign to better investigate the effects of amines on secondary aerosol formation processes.

这项研究是一个名为SOAS（南方氧化剂和气溶胶研究）的广泛的社区实验的组成部分，旨在进一步研究美国东南部大气环境中植物排放物（生物挥发性有机化合物; BVOCs）的氧化。该项目将研究有机胺对二次有机气溶胶形成过程的影响。胺，沿着氨，是大气中主要的有机碱化合物。它们总是存在于气溶胶颗粒中，并且可能通过其氧化产物的冷凝或通过与更酸性的气溶胶颗粒形成盐而有助于SOA的形成。 胺及其氧化产物可能对健康产生不利影响，并直接影响空气质量和能见度。目前，测量气相胺，特别是在美国东南部的生物环境中，是缺乏的。该项目将在2013年SOAS活动期间利用快速响应化学电离质谱仪对胺进行地面测量，以更好地调查胺对二次气溶胶形成过程的影响。