CAREER: Comprehensive Evaluation of Critical Properties of Amine Salts and Their Impacts on Ambient Aerosol

该项目是一项综合研究、教育和推广计划，旨在提高对大气中含氮颗粒的了解。研究小组将测量氨盐的几种物理和化学性质，其中包括氮。该团队将包括本科生，他们将参加由PI教授的基于项目的学习课程。测量结果将用于开发一个模型来预测这些盐在大气中的行为，该模型将通过现场测量结果进行评估。获得的知识和更新的模型将改善这些粒子在天气和空气质量模型中的表现。此外，该项目将为许多本科生提供科学研究机会。本研究包括六个目标：(1)测量与气溶胶形成和转化相关的胺盐的几种基本物理和化学性质，包括密度、表面张力、粘度、热稳定性、相变和吸湿性；(2)测定胺盐部分改性气溶胶的性能；(3)建立基于化学结构的参数，改进现有的大气模型；(4)对环境胺进行现场测量；(5)将研究纳入纽黑文大学（UNH）的几门课程；(6)为6-12年级的学生组织外展活动。该奖项反映了美国国家科学基金会的法定使命，并通过基金会的智力价值和更广泛的影响评估标准进行了评估，认为值得支持。

This project is an integrated research, education, and outreach program to improve understanding of nitrogen containing particles in the atmosphere. The research team will measure several physical and chemical properties of salts of ammonia, which includes nitrogen. The team will include undergraduate students participating in a project-based learning class taught by the PI. Measurements will be used to develop a model to predict behavior of these salts in the atmosphere and the model will be evaluated with measurements from the field. The knowledge gained, and the updated model, will improve the representation of these particles in both weather and air quality models. Additionally, the project will provide scientific research opportunities for many students at a primarily undergraduate institution.This research is comprised of six objectives: (1) measure several fundamental physical and chemical properties of amine salts relevant to aerosol formation and transformation, including density, surface tension, viscosity, thermostability, phase transition, and hygroscopicity; (2) determine the properties of aerosol partially modified with amine salts; (3) develop chemical-structure based parameters and improve current atmospheric models; (4) conduct field measurements on ambient amines; (5) incorporate the research into several courses at University of New Haven (UNH); and (6) organize outreach activities for grades 6-12 studentsThis award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.