Amine Chemistry Relevant to Atmospheric New Particle Formation and Growth

化学系的环境化学科学（ECS）项目将支持特拉华大学Murray V. Johnston教授的研究项目。约翰斯顿教授和他的研究小组将开发和使用基于激光的质谱方法来研究胺在大气气溶胶成核和生长中的作用。该研究将阐明反应机制，并得出在大气模式中准确表示新的气溶胶颗粒形成和生长所必需的基本速率参数。大气中新粒子形成事件是一种全球现象，被认为对云凝结核的浓度有重大贡献，从而影响降水模式和地球的能量平衡。约翰斯顿教授的研究阐明了胺对气溶胶颗粒形成的影响，这可能会导致目前可能低估大气中气溶胶颗粒浓度和组成的大气模式发生重大变化。这项研究将为本科生和研究生在一个具有重大社会意义的研究领域提供极好的培训机会。

The Environmental Chemical Sciences (ECS) program of the Division of Chemistry will support the research program of Prof. Murray V. Johnston of the University of Delaware. Prof. Johnston and his research group will develop and employ laser-based mass spectrometry methods to study the role of amines in the nucleation and growth of atmospheric aerosols. The study will elucidate reaction mechanisms and yield fundamental rate parameters necessary to accurately represent new aerosol particle formation and growth in atmospheric models. New particle formation events in the atmosphere is a global phenomenon that is thought to contribute substantially to the concentration of cloud condensation nuclei, thereby influencing precipitation patterns and Earth's energy balance. Prof. Johnston's study to elucidate the impact of amines on aerosol particle formation could lead to significant changes in atmospheric models that currently may underestimate the concentration and composition of aerosol particles in the atmosphere. The study will provide excellent training opportunities to undergraduate and graduate students in an area of research of great societal importance.