Ozone Reaction Kinetics and Analytical Mass Spectrometry of Multi-Layer Organic Particles

该项目的目标是提高对大气颗粒物非均相化学动力学的认识。 研究人员将研究实验室产生的大气颗粒，这些颗粒由覆盖有有机层的元素碳核心组成，并确定臭氧层中反应的化学动力学。 研究的具体目标是：（1）产生由元素碳与有机物的核组成的颗粒，（2）确定层中与臭氧反应的化学动力学，这取决于定性的分层特征，例如厚度和化学类型，（3）量化层的相互作用和臭氧反应动力学与相对湿度，（4）研究气溶胶质谱仪作为定性和定量分析仪器对这些类型的有机颗粒的响应。 这项工作的更广泛影响将是更好地了解对人类健康，气候变化和空气质量至关重要的大气中的异质过程。 该项目还将促进国际合作，并为研究生培训提供机会。

The objective of this project is to improve understanding of the heterogeneous chemical kinetics of atmospheric particles. The P.I.s will study laboratory-generated atmospheric particles composed of cores of elemental carbon coated with organic layers and determine the chemical kinetics of reactions in the layers with ozone. The specific goals of the research are: (1) to generate particles composed of cores of elemental carbon with organic, (2) to determine the chemical kinetics of reactions in the layers with ozone, as dependent on the qualitative layering characteristics, such as thickness and chemical type, (3) to quantify interactions of the layers and the ozone reaction kinetics with relative humidity, and (4) to investigate the response of the aerosol mass spectrometer as a qualitative and quantitative analytical instrument for these types of organic particles. The broader impacts of this work will be an improved understanding of heterogeneous processes in the atmosphere that are important for human health, climate change, and air quality. This project will also foster international collaborations and provide opportunities for graduate training.