Atmospheric aerosol heterogeneous chemistry: kinetics, products, and effects on hygroscopic properties

大气气溶胶非均相化学：动力学、产物以及对吸湿特性的影响

• 批准号: 227888-2007
• 负责人: Abbatt, Jonathan
• 金额: $ 6.22万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=478646
• 关键词: Atmospheric; aerosol; heterogeneous; chemistry; kinetics

Small solid and liquid particles in the atmosphere, referred to as atmospheric aerosols, are important to both human health and to global climate. In particular, the particles can be inhaled deep into the respiratory system and they also act as the nucleation sites for cloud droplet formation. Although considerable activity has been given to characterizing the sources of these particles, the processes by which they can be chemically transformed in the atmosphere are not as well understood. In this proposal, we will experimentally examine the role that oxidation of these particles plays in the atmosphere, via a variety of gas-surface heterogeneous reactions.

大气中的小固体和液体颗粒物，称为大气气溶胶，对人类健康和全球气候都很重要。 特别是，这些颗粒可以被吸入呼吸系统深处，它们也可以作为云滴形成的成核位点。 虽然人们在确定这些颗粒物的来源方面进行了大量的工作，但对它们在大气中发生化学转化的过程还没有很好的了解。在这个提议中，我们将通过各种气体表面非均相反应，实验研究这些颗粒在大气中的氧化作用。