Ammonia - Organic Chemistry and Secondary Organic Aerosol Yield in the Troposphere

氨 - 对流层中的有机化学和次级有机气溶胶产量

• 批准号: 0234111
• 负责人: David Cocker III
• 金额: $ 17.41万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-03-15 至 2005-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0234111&HistoricalAwards=false
• 关键词: Ammonia; Organic; Chemistry; Secondary; Aerosol

This project addresses the important question of whether gas phase reactions between ammonia and organic acids can lead to enhanced formation of secondary organic aerosol (SOA) through the formation of amino-organic compounds. A series of laboratory experiments will be performed to measure and characterize - under differing temperature and relative humidity regimes - SOA formation rate and mechanism in the presence of ammonia for a variety of atmospherically relevant hydrocarbons. This exploratory study could potentially reconcile some important outstanding issues with respect to SOA formation pathways leading to observed fine particulate mass concentrations - of especially high relevance as the U.S. Environmental Protection Agency promulgates national ambient air quality standards for fine particulate matter. The educational component supports a postdoctoral researcher, graduate student and two undergraduates at the host institution.

该项目解决的重要问题是，氨和有机酸之间的气相反应是否可以通过形成氨基有机化合物导致二次有机气溶胶（SOA）的形成增强。 将进行一系列的实验室实验，以测量和表征-在不同的温度和相对湿度制度- SOA的形成率和机制，在氨的存在下，各种大气相关的碳氢化合物。 这项探索性研究可能会调和一些重要的悬而未决的问题，SOA的形成途径，导致观察到的细颗粒物质量浓度-特别是高度相关的美国环境保护局颁布国家环境空气质量标准的细颗粒物。 教育部分支持一名博士后研究员，研究生和两名本科生在东道机构。